Ian Campbell
2013-Nov-12 17:38 UTC
[PATCH v4 00/17] xen: arm: 64-bit guest support and domU FDT autogeneration
I''ve applied the review feedback from Matthew, Julien and Ian. Each patch has an individual changelog. Ian J, I won''t send you the whole thing again, I think I managed to add a Cc: tag to each thing you commented on... Cheers, Ian.
Ian Campbell
2013-Nov-12 17:39 UTC
[PATCH v4 01/17] xen: update config.{sub, guess} for arm64
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
---
config.guess | 406 +++++++++++++++++++++++++++++++++-------------------------
config.sub | 293 ++++++++++++++++++++++++++----------------
2 files changed, 416 insertions(+), 283 deletions(-)
diff --git a/config.guess b/config.guess
index c2246a4..b79252d 100755
--- a/config.guess
+++ b/config.guess
@@ -1,14 +1,12 @@
#! /bin/sh
# Attempt to guess a canonical system name.
-# Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
-# 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
-# Free Software Foundation, Inc.
+# Copyright 1992-2013 Free Software Foundation, Inc.
-timestamp=''2009-12-30''
+timestamp=''2013-06-10''
# This file is free software; you can redistribute it and/or modify it
# under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 2 of the License, or
+# the Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful, but
@@ -17,26 +15,22 @@ timestamp=''2009-12-30''
# General Public License for more details.
#
# You should have received a copy of the GNU General Public License
-# along with this program; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA
-# 02110-1301, USA.
+# along with this program; if not, see <http://www.gnu.org/licenses/>.
#
# As a special exception to the GNU General Public License, if you
# distribute this file as part of a program that contains a
# configuration script generated by Autoconf, you may include it under
-# the same distribution terms that you use for the rest of that program.
-
-
-# Originally written by Per Bothner. Please send patches (context
-# diff format) to <config-patches@gnu.org> and include a ChangeLog
-# entry.
+# the same distribution terms that you use for the rest of that
+# program. This Exception is an additional permission under section 7
+# of the GNU General Public License, version 3 ("GPLv3").
#
-# This script attempts to guess a canonical system name similar to
-# config.sub. If it succeeds, it prints the system name on stdout, and
-# exits with 0. Otherwise, it exits with 1.
+# Originally written by Per Bothner.
#
# You can get the latest version of this script from:
#
http://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.guess;hb=HEAD
+#
+# Please send patches with a ChangeLog entry to config-patches@gnu.org.
+
me=`echo "$0" | sed -e ''s,.*/,,''`
@@ -56,9 +50,7 @@ version="\
GNU config.guess ($timestamp)
Originally written by Per Bothner.
-Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
-2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 Free
-Software Foundation, Inc.
+Copyright 1992-2013 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE."
@@ -140,12 +132,33 @@ UNAME_RELEASE=`(uname -r) 2>/dev/null` ||
UNAME_RELEASE=unknown
UNAME_SYSTEM=`(uname -s) 2>/dev/null` || UNAME_SYSTEM=unknown
UNAME_VERSION=`(uname -v) 2>/dev/null` || UNAME_VERSION=unknown
+case "${UNAME_SYSTEM}" in
+Linux|GNU|GNU/*)
+ # If the system lacks a compiler, then just pick glibc.
+ # We could probably try harder.
+ LIBC=gnu
+
+ eval $set_cc_for_build
+ cat <<-EOF > $dummy.c
+ #include <features.h>
+ #if defined(__UCLIBC__)
+ LIBC=uclibc
+ #elif defined(__dietlibc__)
+ LIBC=dietlibc
+ #else
+ LIBC=gnu
+ #endif
+ EOF
+ eval `$CC_FOR_BUILD -E $dummy.c 2>/dev/null | grep
''^LIBC''`
+ ;;
+esac
+
# Note: order is significant - the case branches are not exclusive.
case
"${UNAME_MACHINE}:${UNAME_SYSTEM}:${UNAME_RELEASE}:${UNAME_VERSION}"
in
*:NetBSD:*:*)
# NetBSD (nbsd) targets should (where applicable) match one or
- # more of the tupples: *-*-netbsdelf*, *-*-netbsdaout*,
+ # more of the tuples: *-*-netbsdelf*, *-*-netbsdaout*,
# *-*-netbsdecoff* and *-*-netbsd*. For targets that recently
# switched to ELF, *-*-netbsd* would select the old
# object file format. This provides both forward
@@ -181,7 +194,7 @@ case
"${UNAME_MACHINE}:${UNAME_SYSTEM}:${UNAME_RELEASE}:${UNAME_VERSION}"
in
fi
;;
*)
- os=netbsd
+ os=netbsd
;;
esac
# The OS release
@@ -202,6 +215,10 @@ case
"${UNAME_MACHINE}:${UNAME_SYSTEM}:${UNAME_RELEASE}:${UNAME_VERSION}"
in
# CPU_TYPE-MANUFACTURER-OPERATING_SYSTEM is used.
echo "${machine}-${os}${release}"
exit ;;
+ *:Bitrig:*:*)
+ UNAME_MACHINE_ARCH=`arch | sed ''s/Bitrig.//''`
+ echo ${UNAME_MACHINE_ARCH}-unknown-bitrig${UNAME_RELEASE}
+ exit ;;
*:OpenBSD:*:*)
UNAME_MACHINE_ARCH=`arch | sed ''s/OpenBSD.//''`
echo ${UNAME_MACHINE_ARCH}-unknown-openbsd${UNAME_RELEASE}
@@ -224,7 +241,7 @@ case
"${UNAME_MACHINE}:${UNAME_SYSTEM}:${UNAME_RELEASE}:${UNAME_VERSION}"
in
UNAME_RELEASE=`/usr/sbin/sizer -v | awk ''{print $3}''`
;;
*5.*)
- UNAME_RELEASE=`/usr/sbin/sizer -v | awk ''{print
$4}''`
+ UNAME_RELEASE=`/usr/sbin/sizer -v | awk ''{print $4}''`
;;
esac
# According to Compaq, /usr/sbin/psrinfo has been available on
@@ -270,7 +287,10 @@ case
"${UNAME_MACHINE}:${UNAME_SYSTEM}:${UNAME_RELEASE}:${UNAME_VERSION}"
in
# A Xn.n version is an unreleased experimental baselevel.
# 1.2 uses "1.2" for uname -r.
echo ${UNAME_MACHINE}-dec-osf`echo ${UNAME_RELEASE} | sed -e
''s/^[PVTX]//'' | tr
''ABCDEFGHIJKLMNOPQRSTUVWXYZ''
''abcdefghijklmnopqrstuvwxyz''`
- exit ;;
+ # Reset EXIT trap before exiting to avoid spurious non-zero exit code.
+ exitcode=$?
+ trap '''' 0
+ exit $exitcode ;;
Alpha\ *:Windows_NT*:*)
# How do we know it''s Interix rather than the generic POSIX
subsystem?
# Should we change UNAME_MACHINE based on the output of uname instead
@@ -296,12 +316,12 @@ case
"${UNAME_MACHINE}:${UNAME_SYSTEM}:${UNAME_RELEASE}:${UNAME_VERSION}"
in
echo s390-ibm-zvmoe
exit ;;
*:OS400:*:*)
- echo powerpc-ibm-os400
+ echo powerpc-ibm-os400
exit ;;
arm:RISC*:1.[012]*:*|arm:riscix:1.[012]*:*)
echo arm-acorn-riscix${UNAME_RELEASE}
exit ;;
- arm:riscos:*:*|arm:RISCOS:*:*)
+ arm*:riscos:*:*|arm*:RISCOS:*:*)
echo arm-unknown-riscos
exit ;;
SR2?01:HI-UX/MPP:*:* | SR8000:HI-UX/MPP:*:*)
@@ -395,23 +415,23 @@ case
"${UNAME_MACHINE}:${UNAME_SYSTEM}:${UNAME_RELEASE}:${UNAME_VERSION}"
in
# MiNT. But MiNT is downward compatible to TOS, so this should
# be no problem.
atarist[e]:*MiNT:*:* | atarist[e]:*mint:*:* | atarist[e]:*TOS:*:*)
- echo m68k-atari-mint${UNAME_RELEASE}
+ echo m68k-atari-mint${UNAME_RELEASE}
exit ;;
atari*:*MiNT:*:* | atari*:*mint:*:* | atarist[e]:*TOS:*:*)
echo m68k-atari-mint${UNAME_RELEASE}
- exit ;;
+ exit ;;
*falcon*:*MiNT:*:* | *falcon*:*mint:*:* | *falcon*:*TOS:*:*)
- echo m68k-atari-mint${UNAME_RELEASE}
+ echo m68k-atari-mint${UNAME_RELEASE}
exit ;;
milan*:*MiNT:*:* | milan*:*mint:*:* | *milan*:*TOS:*:*)
- echo m68k-milan-mint${UNAME_RELEASE}
- exit ;;
+ echo m68k-milan-mint${UNAME_RELEASE}
+ exit ;;
hades*:*MiNT:*:* | hades*:*mint:*:* | *hades*:*TOS:*:*)
- echo m68k-hades-mint${UNAME_RELEASE}
- exit ;;
+ echo m68k-hades-mint${UNAME_RELEASE}
+ exit ;;
*:*MiNT:*:* | *:*mint:*:* | *:*TOS:*:*)
- echo m68k-unknown-mint${UNAME_RELEASE}
- exit ;;
+ echo m68k-unknown-mint${UNAME_RELEASE}
+ exit ;;
m68k:machten:*:*)
echo m68k-apple-machten${UNAME_RELEASE}
exit ;;
@@ -481,8 +501,8 @@ EOF
echo m88k-motorola-sysv3
exit ;;
AViiON:dgux:*:*)
- # DG/UX returns AViiON for all architectures
- UNAME_PROCESSOR=`/usr/bin/uname -p`
+ # DG/UX returns AViiON for all architectures
+ UNAME_PROCESSOR=`/usr/bin/uname -p`
if [ $UNAME_PROCESSOR = mc88100 ] || [ $UNAME_PROCESSOR = mc88110 ]
then
if [ ${TARGET_BINARY_INTERFACE}x = m88kdguxelfx ] || \
@@ -495,7 +515,7 @@ EOF
else
echo i586-dg-dgux${UNAME_RELEASE}
fi
- exit ;;
+ exit ;;
M88*:DolphinOS:*:*) # DolphinOS (SVR3)
echo m88k-dolphin-sysv3
exit ;;
@@ -552,7 +572,7 @@ EOF
echo rs6000-ibm-aix3.2
fi
exit ;;
- *:AIX:*:[456])
+ *:AIX:*:[4567])
IBM_CPU_ID=`/usr/sbin/lsdev -C -c processor -S available | sed 1q | awk
''{ print $1 }''`
if /usr/sbin/lsattr -El ${IBM_CPU_ID} | grep '' POWER''
>/dev/null 2>&1; then
IBM_ARCH=rs6000
@@ -595,52 +615,52 @@ EOF
9000/[678][0-9][0-9])
if [ -x /usr/bin/getconf ]; then
sc_cpu_version=`/usr/bin/getconf SC_CPU_VERSION 2>/dev/null`
- sc_kernel_bits=`/usr/bin/getconf SC_KERNEL_BITS
2>/dev/null`
- case "${sc_cpu_version}" in
- 523) HP_ARCH="hppa1.0" ;; # CPU_PA_RISC1_0
- 528) HP_ARCH="hppa1.1" ;; # CPU_PA_RISC1_1
- 532) # CPU_PA_RISC2_0
- case "${sc_kernel_bits}" in
- 32) HP_ARCH="hppa2.0n" ;;
- 64) HP_ARCH="hppa2.0w" ;;
+ sc_kernel_bits=`/usr/bin/getconf SC_KERNEL_BITS 2>/dev/null`
+ case "${sc_cpu_version}" in
+ 523) HP_ARCH="hppa1.0" ;; # CPU_PA_RISC1_0
+ 528) HP_ARCH="hppa1.1" ;; # CPU_PA_RISC1_1
+ 532) # CPU_PA_RISC2_0
+ case "${sc_kernel_bits}" in
+ 32) HP_ARCH="hppa2.0n" ;;
+ 64) HP_ARCH="hppa2.0w" ;;
'''') HP_ARCH="hppa2.0" ;; # HP-UX 10.20
- esac ;;
- esac
+ esac ;;
+ esac
fi
if [ "${HP_ARCH}" = "" ]; then
eval $set_cc_for_build
- sed ''s/^ //'' << EOF >$dummy.c
+ sed ''s/^ //'' << EOF >$dummy.c
- #define _HPUX_SOURCE
- #include <stdlib.h>
- #include <unistd.h>
+ #define _HPUX_SOURCE
+ #include <stdlib.h>
+ #include <unistd.h>
- int main ()
- {
- #if defined(_SC_KERNEL_BITS)
- long bits = sysconf(_SC_KERNEL_BITS);
- #endif
- long cpu = sysconf (_SC_CPU_VERSION);
+ int main ()
+ {
+ #if defined(_SC_KERNEL_BITS)
+ long bits = sysconf(_SC_KERNEL_BITS);
+ #endif
+ long cpu = sysconf (_SC_CPU_VERSION);
- switch (cpu)
- {
- case CPU_PA_RISC1_0: puts ("hppa1.0"); break;
- case CPU_PA_RISC1_1: puts ("hppa1.1"); break;
- case CPU_PA_RISC2_0:
- #if defined(_SC_KERNEL_BITS)
- switch (bits)
- {
- case 64: puts ("hppa2.0w"); break;
- case 32: puts ("hppa2.0n"); break;
- default: puts ("hppa2.0"); break;
- } break;
- #else /* !defined(_SC_KERNEL_BITS) */
- puts ("hppa2.0"); break;
- #endif
- default: puts ("hppa1.0"); break;
- }
- exit (0);
- }
+ switch (cpu)
+ {
+ case CPU_PA_RISC1_0: puts ("hppa1.0"); break;
+ case CPU_PA_RISC1_1: puts ("hppa1.1"); break;
+ case CPU_PA_RISC2_0:
+ #if defined(_SC_KERNEL_BITS)
+ switch (bits)
+ {
+ case 64: puts ("hppa2.0w"); break;
+ case 32: puts ("hppa2.0n"); break;
+ default: puts ("hppa2.0"); break;
+ } break;
+ #else /* !defined(_SC_KERNEL_BITS) */
+ puts ("hppa2.0"); break;
+ #endif
+ default: puts ("hppa1.0"); break;
+ }
+ exit (0);
+ }
EOF
(CCOPTS= $CC_FOR_BUILD -o $dummy $dummy.c 2>/dev/null) &&
HP_ARCH=`$dummy`
test -z "$HP_ARCH" && HP_ARCH=hppa
@@ -731,22 +751,22 @@ EOF
exit ;;
C1*:ConvexOS:*:* | convex:ConvexOS:C1*:*)
echo c1-convex-bsd
- exit ;;
+ exit ;;
C2*:ConvexOS:*:* | convex:ConvexOS:C2*:*)
if getsysinfo -f scalar_acc
then echo c32-convex-bsd
else echo c2-convex-bsd
fi
- exit ;;
+ exit ;;
C34*:ConvexOS:*:* | convex:ConvexOS:C34*:*)
echo c34-convex-bsd
- exit ;;
+ exit ;;
C38*:ConvexOS:*:* | convex:ConvexOS:C38*:*)
echo c38-convex-bsd
- exit ;;
+ exit ;;
C4*:ConvexOS:*:* | convex:ConvexOS:C4*:*)
echo c4-convex-bsd
- exit ;;
+ exit ;;
CRAY*Y-MP:*:*:*)
echo ymp-cray-unicos${UNAME_RELEASE} | sed -e
''s/\.[^.]*$/.X/''
exit ;;
@@ -770,14 +790,14 @@ EOF
exit ;;
F30[01]:UNIX_System_V:*:* | F700:UNIX_System_V:*:*)
FUJITSU_PROC=`uname -m | tr ''ABCDEFGHIJKLMNOPQRSTUVWXYZ''
''abcdefghijklmnopqrstuvwxyz''`
- FUJITSU_SYS=`uname -p | tr
''ABCDEFGHIJKLMNOPQRSTUVWXYZ''
''abcdefghijklmnopqrstuvwxyz'' | sed -e
''s/\///''`
- FUJITSU_REL=`echo ${UNAME_RELEASE} | sed -e ''s/ /_/''`
- echo "${FUJITSU_PROC}-fujitsu-${FUJITSU_SYS}${FUJITSU_REL}"
- exit ;;
+ FUJITSU_SYS=`uname -p | tr ''ABCDEFGHIJKLMNOPQRSTUVWXYZ''
''abcdefghijklmnopqrstuvwxyz'' | sed -e
''s/\///''`
+ FUJITSU_REL=`echo ${UNAME_RELEASE} | sed -e ''s/ /_/''`
+ echo "${FUJITSU_PROC}-fujitsu-${FUJITSU_SYS}${FUJITSU_REL}"
+ exit ;;
5000:UNIX_System_V:4.*:*)
- FUJITSU_SYS=`uname -p | tr
''ABCDEFGHIJKLMNOPQRSTUVWXYZ''
''abcdefghijklmnopqrstuvwxyz'' | sed -e
''s/\///''`
- FUJITSU_REL=`echo ${UNAME_RELEASE} | tr
''ABCDEFGHIJKLMNOPQRSTUVWXYZ''
''abcdefghijklmnopqrstuvwxyz'' | sed -e ''s/
/_/''`
- echo "sparc-fujitsu-${FUJITSU_SYS}${FUJITSU_REL}"
+ FUJITSU_SYS=`uname -p | tr ''ABCDEFGHIJKLMNOPQRSTUVWXYZ''
''abcdefghijklmnopqrstuvwxyz'' | sed -e
''s/\///''`
+ FUJITSU_REL=`echo ${UNAME_RELEASE} | tr
''ABCDEFGHIJKLMNOPQRSTUVWXYZ''
''abcdefghijklmnopqrstuvwxyz'' | sed -e ''s/
/_/''`
+ echo "sparc-fujitsu-${FUJITSU_SYS}${FUJITSU_REL}"
exit ;;
i*86:BSD/386:*:* | i*86:BSD/OS:*:* | *:Ascend\ Embedded/OS:*:*)
echo ${UNAME_MACHINE}-pc-bsdi${UNAME_RELEASE}
@@ -789,30 +809,35 @@ EOF
echo ${UNAME_MACHINE}-unknown-bsdi${UNAME_RELEASE}
exit ;;
*:FreeBSD:*:*)
- case ${UNAME_MACHINE} in
- pc98)
- echo i386-unknown-freebsd`echo ${UNAME_RELEASE}|sed -e
''s/[-(].*//''` ;;
+ UNAME_PROCESSOR=`/usr/bin/uname -p`
+ case ${UNAME_PROCESSOR} in
amd64)
echo x86_64-unknown-freebsd`echo ${UNAME_RELEASE}|sed -e
''s/[-(].*//''` ;;
*)
- echo ${UNAME_MACHINE}-unknown-freebsd`echo ${UNAME_RELEASE}|sed -e
''s/[-(].*//''` ;;
+ echo ${UNAME_PROCESSOR}-unknown-freebsd`echo ${UNAME_RELEASE}|sed -e
''s/[-(].*//''` ;;
esac
exit ;;
i*:CYGWIN*:*)
echo ${UNAME_MACHINE}-pc-cygwin
exit ;;
+ *:MINGW64*:*)
+ echo ${UNAME_MACHINE}-pc-mingw64
+ exit ;;
*:MINGW*:*)
echo ${UNAME_MACHINE}-pc-mingw32
exit ;;
+ i*:MSYS*:*)
+ echo ${UNAME_MACHINE}-pc-msys
+ exit ;;
i*:windows32*:*)
- # uname -m includes "-pc" on this system.
- echo ${UNAME_MACHINE}-mingw32
+ # uname -m includes "-pc" on this system.
+ echo ${UNAME_MACHINE}-mingw32
exit ;;
i*:PW*:*)
echo ${UNAME_MACHINE}-pc-pw32
exit ;;
*:Interix*:*)
- case ${UNAME_MACHINE} in
+ case ${UNAME_MACHINE} in
x86)
echo i586-pc-interix${UNAME_RELEASE}
exit ;;
@@ -849,15 +874,22 @@ EOF
exit ;;
*:GNU:*:*)
# the GNU system
- echo `echo ${UNAME_MACHINE}|sed -e
''s,[-/].*$,,''`-unknown-gnu`echo ${UNAME_RELEASE}|sed -e
''s,/.*$,,''`
+ echo `echo ${UNAME_MACHINE}|sed -e
''s,[-/].*$,,''`-unknown-${LIBC}`echo ${UNAME_RELEASE}|sed -e
''s,/.*$,,''`
exit ;;
*:GNU/*:*:*)
# other systems with GNU libc and userland
- echo ${UNAME_MACHINE}-unknown-`echo ${UNAME_SYSTEM} | sed
''s,^[^/]*/,,'' | tr ''[A-Z]''
''[a-z]''``echo ${UNAME_RELEASE}|sed -e
''s/[-(].*//''`-gnu
+ echo ${UNAME_MACHINE}-unknown-`echo ${UNAME_SYSTEM} | sed
''s,^[^/]*/,,'' | tr ''[A-Z]''
''[a-z]''``echo ${UNAME_RELEASE}|sed -e
''s/[-(].*//''`-${LIBC}
exit ;;
i*86:Minix:*:*)
echo ${UNAME_MACHINE}-pc-minix
exit ;;
+ aarch64:Linux:*:*)
+ echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+ exit ;;
+ aarch64_be:Linux:*:*)
+ UNAME_MACHINE=aarch64_be
+ echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+ exit ;;
alpha:Linux:*:*)
case `sed -n ''/^cpu model/s/^.*: \(.*\)/\1/p'' <
/proc/cpuinfo` in
EV5) UNAME_MACHINE=alphaev5 ;;
@@ -867,52 +899,56 @@ EOF
EV6) UNAME_MACHINE=alphaev6 ;;
EV67) UNAME_MACHINE=alphaev67 ;;
EV68*) UNAME_MACHINE=alphaev68 ;;
- esac
+ esac
objdump --private-headers /bin/sh | grep -q ld.so.1
- if test "$?" = 0 ; then LIBC="libc1" ; else
LIBC="" ; fi
- echo ${UNAME_MACHINE}-unknown-linux-gnu${LIBC}
+ if test "$?" = 0 ; then LIBC="gnulibc1" ; fi
+ echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+ exit ;;
+ arc:Linux:*:* | arceb:Linux:*:*)
+ echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
exit ;;
arm*:Linux:*:*)
eval $set_cc_for_build
if echo __ARM_EABI__ | $CC_FOR_BUILD -E - 2>/dev/null \
| grep -q __ARM_EABI__
then
- echo ${UNAME_MACHINE}-unknown-linux-gnu
+ echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
else
- echo ${UNAME_MACHINE}-unknown-linux-gnueabi
+ if echo __ARM_PCS_VFP | $CC_FOR_BUILD -E - 2>/dev/null \
+ | grep -q __ARM_PCS_VFP
+ then
+ echo ${UNAME_MACHINE}-unknown-linux-${LIBC}eabi
+ else
+ echo ${UNAME_MACHINE}-unknown-linux-${LIBC}eabihf
+ fi
fi
exit ;;
avr32*:Linux:*:*)
- echo ${UNAME_MACHINE}-unknown-linux-gnu
+ echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
exit ;;
cris:Linux:*:*)
- echo cris-axis-linux-gnu
+ echo ${UNAME_MACHINE}-axis-linux-${LIBC}
exit ;;
crisv32:Linux:*:*)
- echo crisv32-axis-linux-gnu
+ echo ${UNAME_MACHINE}-axis-linux-${LIBC}
exit ;;
frv:Linux:*:*)
- echo frv-unknown-linux-gnu
+ echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+ exit ;;
+ hexagon:Linux:*:*)
+ echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
exit ;;
i*86:Linux:*:*)
- LIBC=gnu
- eval $set_cc_for_build
- sed ''s/^ //'' << EOF >$dummy.c
- #ifdef __dietlibc__
- LIBC=dietlibc
- #endif
-EOF
- eval `$CC_FOR_BUILD -E $dummy.c 2>/dev/null | grep
''^LIBC''`
- echo "${UNAME_MACHINE}-pc-linux-${LIBC}"
+ echo ${UNAME_MACHINE}-pc-linux-${LIBC}
exit ;;
ia64:Linux:*:*)
- echo ${UNAME_MACHINE}-unknown-linux-gnu
+ echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
exit ;;
m32r*:Linux:*:*)
- echo ${UNAME_MACHINE}-unknown-linux-gnu
+ echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
exit ;;
m68*:Linux:*:*)
- echo ${UNAME_MACHINE}-unknown-linux-gnu
+ echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
exit ;;
mips:Linux:*:* | mips64:Linux:*:*)
eval $set_cc_for_build
@@ -931,51 +967,63 @@ EOF
#endif
EOF
eval `$CC_FOR_BUILD -E $dummy.c 2>/dev/null | grep
''^CPU''`
- test x"${CPU}" != x && { echo
"${CPU}-unknown-linux-gnu"; exit; }
+ test x"${CPU}" != x && { echo
"${CPU}-unknown-linux-${LIBC}"; exit; }
;;
+ or1k:Linux:*:*)
+ echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+ exit ;;
or32:Linux:*:*)
- echo or32-unknown-linux-gnu
+ echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
exit ;;
padre:Linux:*:*)
- echo sparc-unknown-linux-gnu
+ echo sparc-unknown-linux-${LIBC}
exit ;;
parisc64:Linux:*:* | hppa64:Linux:*:*)
- echo hppa64-unknown-linux-gnu
+ echo hppa64-unknown-linux-${LIBC}
exit ;;
parisc:Linux:*:* | hppa:Linux:*:*)
# Look for CPU level
case `grep ''^cpu[^a-z]*:'' /proc/cpuinfo 2>/dev/null | cut
-d'' '' -f2` in
- PA7*) echo hppa1.1-unknown-linux-gnu ;;
- PA8*) echo hppa2.0-unknown-linux-gnu ;;
- *) echo hppa-unknown-linux-gnu ;;
+ PA7*) echo hppa1.1-unknown-linux-${LIBC} ;;
+ PA8*) echo hppa2.0-unknown-linux-${LIBC} ;;
+ *) echo hppa-unknown-linux-${LIBC} ;;
esac
exit ;;
ppc64:Linux:*:*)
- echo powerpc64-unknown-linux-gnu
+ echo powerpc64-unknown-linux-${LIBC}
exit ;;
ppc:Linux:*:*)
- echo powerpc-unknown-linux-gnu
+ echo powerpc-unknown-linux-${LIBC}
+ exit ;;
+ ppc64le:Linux:*:*)
+ echo powerpc64le-unknown-linux-${LIBC}
+ exit ;;
+ ppcle:Linux:*:*)
+ echo powerpcle-unknown-linux-${LIBC}
exit ;;
s390:Linux:*:* | s390x:Linux:*:*)
- echo ${UNAME_MACHINE}-ibm-linux
+ echo ${UNAME_MACHINE}-ibm-linux-${LIBC}
exit ;;
sh64*:Linux:*:*)
- echo ${UNAME_MACHINE}-unknown-linux-gnu
+ echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
exit ;;
sh*:Linux:*:*)
- echo ${UNAME_MACHINE}-unknown-linux-gnu
+ echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
exit ;;
sparc:Linux:*:* | sparc64:Linux:*:*)
- echo ${UNAME_MACHINE}-unknown-linux-gnu
+ echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+ exit ;;
+ tile*:Linux:*:*)
+ echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
exit ;;
vax:Linux:*:*)
- echo ${UNAME_MACHINE}-dec-linux-gnu
+ echo ${UNAME_MACHINE}-dec-linux-${LIBC}
exit ;;
x86_64:Linux:*:*)
- echo x86_64-unknown-linux-gnu
+ echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
exit ;;
xtensa*:Linux:*:*)
- echo ${UNAME_MACHINE}-unknown-linux-gnu
+ echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
exit ;;
i*86:DYNIX/ptx:4*:*)
# ptx 4.0 does uname -s correctly, with DYNIX/ptx in there.
@@ -984,11 +1032,11 @@ EOF
echo i386-sequent-sysv4
exit ;;
i*86:UNIX_SV:4.2MP:2.*)
- # Unixware is an offshoot of SVR4, but it has its own version
- # number series starting with 2...
- # I am not positive that other SVR4 systems won''t match this,
+ # Unixware is an offshoot of SVR4, but it has its own version
+ # number series starting with 2...
+ # I am not positive that other SVR4 systems won''t match this,
# I just have to hope. -- rms.
- # Use sysv4.2uw... so that sysv4* matches it.
+ # Use sysv4.2uw... so that sysv4* matches it.
echo ${UNAME_MACHINE}-pc-sysv4.2uw${UNAME_VERSION}
exit ;;
i*86:OS/2:*:*)
@@ -1020,7 +1068,7 @@ EOF
fi
exit ;;
i*86:*:5:[678]*)
- # UnixWare 7.x, OpenUNIX and OpenServer 6.
+ # UnixWare 7.x, OpenUNIX and OpenServer 6.
case `/bin/uname -X | grep "^Machine"` in
*486*) UNAME_MACHINE=i486 ;;
*Pentium) UNAME_MACHINE=i586 ;;
@@ -1048,13 +1096,13 @@ EOF
exit ;;
pc:*:*:*)
# Left here for compatibility:
- # uname -m prints for DJGPP always ''pc'', but it
prints nothing about
- # the processor, so we play safe by assuming i586.
+ # uname -m prints for DJGPP always ''pc'', but it prints
nothing about
+ # the processor, so we play safe by assuming i586.
# Note: whatever this is, it MUST be the same as what config.sub
# prints for the "djgpp" host, or else GDB configury will decide
that
# this is a cross-build.
echo i586-pc-msdosdjgpp
- exit ;;
+ exit ;;
Intel:Mach:3*:*)
echo i386-pc-mach3
exit ;;
@@ -1089,8 +1137,8 @@ EOF
/bin/uname -p 2>/dev/null | /bin/grep entium >/dev/null \
&& { echo i586-ncr-sysv4.3${OS_REL}; exit; } ;;
3[34]??:*:4.0:* | 3[34]??,*:*:4.0:*)
- /bin/uname -p 2>/dev/null | grep 86 >/dev/null \
- && { echo i486-ncr-sysv4; exit; } ;;
+ /bin/uname -p 2>/dev/null | grep 86 >/dev/null \
+ && { echo i486-ncr-sysv4; exit; } ;;
NCR*:*:4.2:* | MPRAS*:*:4.2:*)
OS_REL=''.3''
test -r /etc/.relid \
@@ -1133,10 +1181,10 @@ EOF
echo ns32k-sni-sysv
fi
exit ;;
- PENTIUM:*:4.0*:*) # Unisys `ClearPath HMP IX 4000'' SVR4/MP effort
- # says <Richard.M.Bartel@ccMail.Census.GOV>
- echo i586-unisys-sysv4
- exit ;;
+ PENTIUM:*:4.0*:*) # Unisys `ClearPath HMP IX 4000'' SVR4/MP effort
+ # says <Richard.M.Bartel@ccMail.Census.GOV>
+ echo i586-unisys-sysv4
+ exit ;;
*:UNIX_System_V:4*:FTX*)
# From Gerald Hewes <hewes@openmarket.com>.
# How about differentiating between stratus architectures? -djm
@@ -1162,11 +1210,11 @@ EOF
exit ;;
R[34]000:*System_V*:*:* | R4000:UNIX_SYSV:*:* | R*000:UNIX_SV:*:*)
if [ -d /usr/nec ]; then
- echo mips-nec-sysv${UNAME_RELEASE}
+ echo mips-nec-sysv${UNAME_RELEASE}
else
- echo mips-unknown-sysv${UNAME_RELEASE}
+ echo mips-unknown-sysv${UNAME_RELEASE}
fi
- exit ;;
+ exit ;;
BeBox:BeOS:*:*) # BeOS running on hardware made by Be, PPC only.
echo powerpc-be-beos
exit ;;
@@ -1179,6 +1227,9 @@ EOF
BePC:Haiku:*:*) # Haiku running on Intel PC compatible.
echo i586-pc-haiku
exit ;;
+ x86_64:Haiku:*:*)
+ echo x86_64-unknown-haiku
+ exit ;;
SX-4:SUPER-UX:*:*)
echo sx4-nec-superux${UNAME_RELEASE}
exit ;;
@@ -1205,19 +1256,21 @@ EOF
exit ;;
*:Darwin:*:*)
UNAME_PROCESSOR=`uname -p` || UNAME_PROCESSOR=unknown
- case $UNAME_PROCESSOR in
- i386)
- eval $set_cc_for_build
- if [ "$CC_FOR_BUILD" != ''no_compiler_found'' ];
then
- if (echo ''#ifdef __LP64__''; echo IS_64BIT_ARCH; echo
''#endif'') | \
- (CCOPTS= $CC_FOR_BUILD -E - 2>/dev/null) | \
- grep IS_64BIT_ARCH >/dev/null
- then
- UNAME_PROCESSOR="x86_64"
- fi
- fi ;;
- unknown) UNAME_PROCESSOR=powerpc ;;
- esac
+ eval $set_cc_for_build
+ if test "$UNAME_PROCESSOR" = unknown ; then
+ UNAME_PROCESSOR=powerpc
+ fi
+ if [ "$CC_FOR_BUILD" != ''no_compiler_found'' ];
then
+ if (echo ''#ifdef __LP64__''; echo IS_64BIT_ARCH; echo
''#endif'') | \
+ (CCOPTS= $CC_FOR_BUILD -E - 2>/dev/null) | \
+ grep IS_64BIT_ARCH >/dev/null
+ then
+ case $UNAME_PROCESSOR in
+ i386) UNAME_PROCESSOR=x86_64 ;;
+ powerpc) UNAME_PROCESSOR=powerpc64 ;;
+ esac
+ fi
+ fi
echo ${UNAME_PROCESSOR}-apple-darwin${UNAME_RELEASE}
exit ;;
*:procnto*:*:* | *:QNX:[0123456789]*:*)
@@ -1231,7 +1284,10 @@ EOF
*:QNX:*:4*)
echo i386-pc-qnx
exit ;;
- NSE-?:NONSTOP_KERNEL:*:*)
+ NEO-?:NONSTOP_KERNEL:*:*)
+ echo neo-tandem-nsk${UNAME_RELEASE}
+ exit ;;
+ NSE-*:NONSTOP_KERNEL:*:*)
echo nse-tandem-nsk${UNAME_RELEASE}
exit ;;
NSR-?:NONSTOP_KERNEL:*:*)
@@ -1276,13 +1332,13 @@ EOF
echo pdp10-unknown-its
exit ;;
SEI:*:*:SEIUX)
- echo mips-sei-seiux${UNAME_RELEASE}
+ echo mips-sei-seiux${UNAME_RELEASE}
exit ;;
*:DragonFly:*:*)
echo ${UNAME_MACHINE}-unknown-dragonfly`echo ${UNAME_RELEASE}|sed -e
''s/[-(].*//''`
exit ;;
*:*VMS:*:*)
- UNAME_MACHINE=`(uname -p) 2>/dev/null`
+ UNAME_MACHINE=`(uname -p) 2>/dev/null`
case "${UNAME_MACHINE}" in
A*) echo alpha-dec-vms ; exit ;;
I*) echo ia64-dec-vms ; exit ;;
@@ -1300,11 +1356,11 @@ EOF
i*86:AROS:*:*)
echo ${UNAME_MACHINE}-pc-aros
exit ;;
+ x86_64:VMkernel:*:*)
+ echo ${UNAME_MACHINE}-unknown-esx
+ exit ;;
esac
-#echo ''(No uname command or uname output not recognized.)''
1>&2
-#echo
"${UNAME_MACHINE}:${UNAME_SYSTEM}:${UNAME_RELEASE}:${UNAME_VERSION}"
1>&2
-
eval $set_cc_for_build
cat >$dummy.c <<EOF
#ifdef _SEQUENT_
@@ -1322,11 +1378,11 @@ main ()
#include <sys/param.h>
printf ("m68k-sony-newsos%s\n",
#ifdef NEWSOS4
- "4"
+ "4"
#else
- ""
+ ""
#endif
- ); exit (0);
+ ); exit (0);
#endif
#endif
diff --git a/config.sub b/config.sub
index c2d1257..9633db7 100755
--- a/config.sub
+++ b/config.sub
@@ -1,38 +1,31 @@
#! /bin/sh
# Configuration validation subroutine script.
-# Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
-# 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
-# Free Software Foundation, Inc.
+# Copyright 1992-2013 Free Software Foundation, Inc.
-timestamp=''2010-01-22''
+timestamp=''2013-08-10''
-# This file is (in principle) common to ALL GNU software.
-# The presence of a machine in this file suggests that SOME GNU software
-# can handle that machine. It does not imply ALL GNU software can.
-#
-# This file is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 2 of the License, or
+# This file is free software; you can redistribute it and/or modify it
+# under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.
#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-# GNU General Public License for more details.
+# This program is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# General Public License for more details.
#
# You should have received a copy of the GNU General Public License
-# along with this program; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA
-# 02110-1301, USA.
+# along with this program; if not, see <http://www.gnu.org/licenses/>.
#
# As a special exception to the GNU General Public License, if you
# distribute this file as part of a program that contains a
# configuration script generated by Autoconf, you may include it under
-# the same distribution terms that you use for the rest of that program.
+# the same distribution terms that you use for the rest of that
+# program. This Exception is an additional permission under section 7
+# of the GNU General Public License, version 3 ("GPLv3").
-# Please send patches to <config-patches@gnu.org>. Submit a context
-# diff and a properly formatted GNU ChangeLog entry.
+# Please send patches with a ChangeLog entry to config-patches@gnu.org.
#
# Configuration subroutine to validate and canonicalize a configuration type.
# Supply the specified configuration type as an argument.
@@ -75,9 +68,7 @@ Report bugs and patches to
<config-patches@gnu.org>."
version="\
GNU config.sub ($timestamp)
-Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
-2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 Free
-Software Foundation, Inc.
+Copyright 1992-2013 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE."
@@ -124,13 +115,18 @@ esac
# Here we must recognize all the valid KERNEL-OS combinations.
maybe_os=`echo $1 | sed ''s/^\(.*\)-\([^-]*-[^-]*\)$/\2/''`
case $maybe_os in
- nto-qnx* | linux-gnu* | linux-dietlibc | linux-newlib* | linux-uclibc* | \
- uclinux-uclibc* | uclinux-gnu* | kfreebsd*-gnu* | knetbsd*-gnu* |
netbsd*-gnu* | \
+ nto-qnx* | linux-gnu* | linux-android* | linux-dietlibc | linux-newlib* | \
+ linux-musl* | linux-uclibc* | uclinux-uclibc* | uclinux-gnu* | kfreebsd*-gnu*
| \
+ knetbsd*-gnu* | netbsd*-gnu* | \
kopensolaris*-gnu* | \
storm-chaos* | os2-emx* | rtmk-nova*)
os=-$maybe_os
basic_machine=`echo $1 | sed
''s/^\(.*\)-\([^-]*-[^-]*\)$/\1/''`
;;
+ android-linux)
+ os=-linux-android
+ basic_machine=`echo $1 | sed
''s/^\(.*\)-\([^-]*-[^-]*\)$/\1/''`-unknown
+ ;;
*)
basic_machine=`echo $1 | sed ''s/-[^-]*$//''`
if [ $basic_machine != $1 ]
@@ -153,12 +149,12 @@ case $os in
-convergent* | -ncr* | -news | -32* | -3600* | -3100* | -hitachi* |\
-c[123]* | -convex* | -sun | -crds | -omron* | -dg | -ultra | -tti* | \
-harris | -dolphin | -highlevel | -gould | -cbm | -ns | -masscomp | \
- -apple | -axis | -knuth | -cray | -microblaze)
+ -apple | -axis | -knuth | -cray | -microblaze*)
os basic_machine=$1
;;
- -bluegene*)
- os=-cnk
+ -bluegene*)
+ os=-cnk
;;
-sim | -cisco | -oki | -wec | -winbond)
os@@ -174,10 +170,10 @@ case $os in
os=-chorusos
basic_machine=$1
;;
- -chorusrdb)
- os=-chorusrdb
+ -chorusrdb)
+ os=-chorusrdb
basic_machine=$1
- ;;
+ ;;
-hiux*)
os=-hiuxwe2
;;
@@ -222,6 +218,12 @@ case $os in
-isc*)
basic_machine=`echo $1 | sed -e ''s/86-.*/86-pc/''`
;;
+ -lynx*178)
+ os=-lynxos178
+ ;;
+ -lynx*5)
+ os=-lynxos5
+ ;;
-lynx*)
os=-lynxos
;;
@@ -246,20 +248,27 @@ case $basic_machine in
# Some are omitted here because they have special meanings below.
1750a | 580 \
| a29k \
+ | aarch64 | aarch64_be \
| alpha | alphaev[4-8] | alphaev56 | alphaev6[78] | alphapca5[67] \
| alpha64 | alpha64ev[4-8] | alpha64ev56 | alpha64ev6[78] | alpha64pca5[67] \
| am33_2.0 \
- | arc | arm | arm[bl]e | arme[lb] | armv[2345] | armv[345][lb] | avr | avr32 \
+ | arc | arceb \
+ | arm | arm[bl]e | arme[lb] | armv[2-8] | armv[3-8][lb] | armv7[arm] \
+ | avr | avr32 \
+ | be32 | be64 \
| bfin \
- | c4x | clipper \
+ | c4x | c8051 | clipper \
| d10v | d30v | dlx | dsp16xx \
+ | epiphany \
| fido | fr30 | frv \
| h8300 | h8500 | hppa | hppa1.[01] | hppa2.0 | hppa2.0[nw] | hppa64 \
+ | hexagon \
| i370 | i860 | i960 | ia64 \
| ip2k | iq2000 \
+ | le32 | le64 \
| lm32 \
| m32c | m32r | m32rle | m68000 | m68k | m88k \
- | maxq | mb | microblaze | mcore | mep | metag \
+ | maxq | mb | microblaze | microblazeel | mcore | mep | metag \
| mips | mipsbe | mipseb | mipsel | mipsle \
| mips16 \
| mips64 | mips64el \
@@ -277,34 +286,45 @@ case $basic_machine in
| mipsisa64r2 | mipsisa64r2el \
| mipsisa64sb1 | mipsisa64sb1el \
| mipsisa64sr71k | mipsisa64sr71kel \
+ | mipsr5900 | mipsr5900el \
| mipstx39 | mipstx39el \
| mn10200 | mn10300 \
| moxie \
| mt \
| msp430 \
- | nios | nios2 \
+ | nds32 | nds32le | nds32be \
+ | nios | nios2 | nios2eb | nios2el \
| ns16k | ns32k \
- | or32 \
+ | open8 \
+ | or1k | or32 \
| pdp10 | pdp11 | pj | pjl \
- | powerpc | powerpc64 | powerpc64le | powerpcle | ppcbe \
+ | powerpc | powerpc64 | powerpc64le | powerpcle \
| pyramid \
- | rx \
+ | rl78 | rx \
| score \
| sh | sh[1234] | sh[24]a | sh[24]aeb | sh[23]e | sh[34]eb | sheb | shbe |
shle | sh[1234]le | sh3ele \
| sh64 | sh64le \
| sparc | sparc64 | sparc64b | sparc64v | sparc86x | sparclet | sparclite \
| sparcv8 | sparcv9 | sparcv9b | sparcv9v \
- | spu | strongarm \
- | tahoe | thumb | tic4x | tic80 | tron \
+ | spu \
+ | tahoe | tic4x | tic54x | tic55x | tic6x | tic80 | tron \
| ubicom32 \
- | v850 | v850e \
+ | v850 | v850e | v850e1 | v850e2 | v850es | v850e2v3 \
| we32k \
- | x86 | xc16x | xscale | xscalee[bl] | xstormy16 | xtensa \
+ | x86 | xc16x | xstormy16 | xtensa \
| z8k | z80)
basic_machine=$basic_machine-unknown
;;
- m6811 | m68hc11 | m6812 | m68hc12 | picochip)
- # Motorola 68HC11/12.
+ c54x)
+ basic_machine=tic54x-unknown
+ ;;
+ c55x)
+ basic_machine=tic55x-unknown
+ ;;
+ c6x)
+ basic_machine=tic6x-unknown
+ ;;
+ m6811 | m68hc11 | m6812 | m68hc12 | m68hcs12x | picochip)
basic_machine=$basic_machine-unknown
os=-none
;;
@@ -314,6 +334,21 @@ case $basic_machine in
basic_machine=mt-unknown
;;
+ strongarm | thumb | xscale)
+ basic_machine=arm-unknown
+ ;;
+ xgate)
+ basic_machine=$basic_machine-unknown
+ os=-none
+ ;;
+ xscaleeb)
+ basic_machine=armeb-unknown
+ ;;
+
+ xscaleel)
+ basic_machine=armel-unknown
+ ;;
+
# We use `pc'' rather than `unknown''
# because (1) that''s what they normally are, and
# (2) the word "unknown" tends to confuse beginning users.
@@ -328,25 +363,30 @@ case $basic_machine in
# Recognize the basic CPU types with company name.
580-* \
| a29k-* \
+ | aarch64-* | aarch64_be-* \
| alpha-* | alphaev[4-8]-* | alphaev56-* | alphaev6[78]-* \
| alpha64-* | alpha64ev[4-8]-* | alpha64ev56-* | alpha64ev6[78]-* \
- | alphapca5[67]-* | alpha64pca5[67]-* | arc-* \
+ | alphapca5[67]-* | alpha64pca5[67]-* | arc-* | arceb-* \
| arm-* | armbe-* | armle-* | armeb-* | armv*-* \
| avr-* | avr32-* \
+ | be32-* | be64-* \
| bfin-* | bs2000-* \
- | c[123]* | c30-* | [cjt]90-* | c4x-* | c54x-* | c55x-* | c6x-* \
- | clipper-* | craynv-* | cydra-* \
+ | c[123]* | c30-* | [cjt]90-* | c4x-* \
+ | c8051-* | clipper-* | craynv-* | cydra-* \
| d10v-* | d30v-* | dlx-* \
| elxsi-* \
| f30[01]-* | f700-* | fido-* | fr30-* | frv-* | fx80-* \
| h8300-* | h8500-* \
| hppa-* | hppa1.[01]-* | hppa2.0-* | hppa2.0[nw]-* | hppa64-* \
+ | hexagon-* \
| i*86-* | i860-* | i960-* | ia64-* \
| ip2k-* | iq2000-* \
+ | le32-* | le64-* \
| lm32-* \
| m32c-* | m32r-* | m32rle-* \
| m68000-* | m680[012346]0-* | m68360-* | m683?2-* | m68k-* \
- | m88110-* | m88k-* | maxq-* | mcore-* | metag-* | microblaze-* \
+ | m88110-* | m88k-* | maxq-* | mcore-* | metag-* \
+ | microblaze-* | microblazeel-* \
| mips-* | mipsbe-* | mipseb-* | mipsel-* | mipsle-* \
| mips16-* \
| mips64-* | mips64el-* \
@@ -364,30 +404,34 @@ case $basic_machine in
| mipsisa64r2-* | mipsisa64r2el-* \
| mipsisa64sb1-* | mipsisa64sb1el-* \
| mipsisa64sr71k-* | mipsisa64sr71kel-* \
+ | mipsr5900-* | mipsr5900el-* \
| mipstx39-* | mipstx39el-* \
| mmix-* \
| mt-* \
| msp430-* \
- | nios-* | nios2-* \
+ | nds32-* | nds32le-* | nds32be-* \
+ | nios-* | nios2-* | nios2eb-* | nios2el-* \
| none-* | np1-* | ns16k-* | ns32k-* \
+ | open8-* \
| orion-* \
| pdp10-* | pdp11-* | pj-* | pjl-* | pn-* | power-* \
- | powerpc-* | powerpc64-* | powerpc64le-* | powerpcle-* | ppcbe-* \
+ | powerpc-* | powerpc64-* | powerpc64le-* | powerpcle-* \
| pyramid-* \
- | romp-* | rs6000-* | rx-* \
+ | rl78-* | romp-* | rs6000-* | rx-* \
| sh-* | sh[1234]-* | sh[24]a-* | sh[24]aeb-* | sh[23]e-* | sh[34]eb-* |
sheb-* | shbe-* \
| shle-* | sh[1234]le-* | sh3ele-* | sh64-* | sh64le-* \
| sparc-* | sparc64-* | sparc64b-* | sparc64v-* | sparc86x-* | sparclet-* \
| sparclite-* \
- | sparcv8-* | sparcv9-* | sparcv9b-* | sparcv9v-* | strongarm-* | sv1-* |
sx?-* \
- | tahoe-* | thumb-* \
+ | sparcv8-* | sparcv9-* | sparcv9b-* | sparcv9v-* | sv1-* | sx?-* \
+ | tahoe-* \
| tic30-* | tic4x-* | tic54x-* | tic55x-* | tic6x-* | tic80-* \
- | tile-* | tilegx-* \
+ | tile*-* \
| tron-* \
| ubicom32-* \
- | v850-* | v850e-* | vax-* \
+ | v850-* | v850e-* | v850e1-* | v850es-* | v850e2-* | v850e2v3-* \
+ | vax-* \
| we32k-* \
- | x86-* | x86_64-* | xc16x-* | xps100-* | xscale-* | xscalee[bl]-* \
+ | x86-* | x86_64-* | xc16x-* | xps100-* \
| xstormy16-* | xtensa*-* \
| ymp-* \
| z8k-* | z80-*)
@@ -412,7 +456,7 @@ case $basic_machine in
basic_machine=a29k-amd
os=-udi
;;
- abacus)
+ abacus)
basic_machine=abacus-unknown
;;
adobe68k)
@@ -482,11 +526,20 @@ case $basic_machine in
basic_machine=powerpc-ibm
os=-cnk
;;
+ c54x-*)
+ basic_machine=tic54x-`echo $basic_machine | sed
''s/^[^-]*-//''`
+ ;;
+ c55x-*)
+ basic_machine=tic55x-`echo $basic_machine | sed
''s/^[^-]*-//''`
+ ;;
+ c6x-*)
+ basic_machine=tic6x-`echo $basic_machine | sed
''s/^[^-]*-//''`
+ ;;
c90)
basic_machine=c90-cray
os=-unicos
;;
- cegcc)
+ cegcc)
basic_machine=arm-unknown
os=-cegcc
;;
@@ -518,7 +571,7 @@ case $basic_machine in
basic_machine=craynv-cray
os=-unicosmp
;;
- cr16)
+ cr16 | cr16-*)
basic_machine=cr16-unknown
os=-elf
;;
@@ -676,7 +729,6 @@ case $basic_machine in
i370-ibm* | ibm*)
basic_machine=i370-ibm
;;
-# I''m not sure what "Sysv32" means. Should this be sysv3.2?
i*86v32)
basic_machine=`echo $1 | sed -e ''s/86.*/86-pc/''`
os=-sysv32
@@ -734,11 +786,15 @@ case $basic_machine in
basic_machine=ns32k-utek
os=-sysv
;;
- microblaze)
+ microblaze*)
basic_machine=microblaze-xilinx
;;
+ mingw64)
+ basic_machine=x86_64-pc
+ os=-mingw64
+ ;;
mingw32)
- basic_machine=i386-pc
+ basic_machine=i686-pc
os=-mingw32
;;
mingw32ce)
@@ -773,10 +829,18 @@ case $basic_machine in
ms1-*)
basic_machine=`echo $basic_machine | sed -e ''s/ms1-/mt-/''`
;;
+ msys)
+ basic_machine=i686-pc
+ os=-msys
+ ;;
mvs)
basic_machine=i370-ibm
os=-mvs
;;
+ nacl)
+ basic_machine=le32-unknown
+ os=-nacl
+ ;;
ncr3000)
basic_machine=i486-ncr
os=-sysv4
@@ -841,6 +905,12 @@ case $basic_machine in
np1)
basic_machine=np1-gould
;;
+ neo-tandem)
+ basic_machine=neo-tandem
+ ;;
+ nse-tandem)
+ basic_machine=nse-tandem
+ ;;
nsr-tandem)
basic_machine=nsr-tandem
;;
@@ -923,9 +993,10 @@ case $basic_machine in
;;
power) basic_machine=power-ibm
;;
- ppc) basic_machine=powerpc-unknown
+ ppc | ppcbe) basic_machine=powerpc-unknown
;;
- ppc-*) basic_machine=powerpc-`echo $basic_machine | sed
''s/^[^-]*-//''`
+ ppc-* | ppcbe-*)
+ basic_machine=powerpc-`echo $basic_machine | sed
''s/^[^-]*-//''`
;;
ppcle | powerpclittle | ppc-le | powerpc-little)
basic_machine=powerpcle-unknown
@@ -950,7 +1021,11 @@ case $basic_machine in
basic_machine=i586-unknown
os=-pw32
;;
- rdos)
+ rdos | rdos64)
+ basic_machine=x86_64-pc
+ os=-rdos
+ ;;
+ rdos32)
basic_machine=i386-pc
os=-rdos
;;
@@ -1019,6 +1094,9 @@ case $basic_machine in
basic_machine=i860-stratus
os=-sysv4
;;
+ strongarm-* | thumb-*)
+ basic_machine=arm-`echo $basic_machine | sed ''s/^[^-]*-//''`
+ ;;
sun2)
basic_machine=m68000-sun
;;
@@ -1075,25 +1153,8 @@ case $basic_machine in
basic_machine=t90-cray
os=-unicos
;;
- tic54x | c54x*)
- basic_machine=tic54x-unknown
- os=-coff
- ;;
- tic55x | c55x*)
- basic_machine=tic55x-unknown
- os=-coff
- ;;
- tic6x | c6x*)
- basic_machine=tic6x-unknown
- os=-coff
- ;;
- # This must be matched before tile*.
- tilegx*)
- basic_machine=tilegx-unknown
- os=-linux-gnu
- ;;
tile*)
- basic_machine=tile-unknown
+ basic_machine=$basic_machine-unknown
os=-linux-gnu
;;
tx39)
@@ -1163,6 +1224,9 @@ case $basic_machine in
xps | xps100)
basic_machine=xps100-honeywell
;;
+ xscale-* | xscalee[bl]-*)
+ basic_machine=`echo $basic_machine | sed ''s/^xscale/arm/''`
+ ;;
ymp)
basic_machine=ymp-cray
os=-unicos
@@ -1260,11 +1324,11 @@ esac
if [ x"$os" != x"" ]
then
case $os in
- # First match some system type aliases
- # that might get confused with valid system types.
+ # First match some system type aliases
+ # that might get confused with valid system types.
# -solaris* is a basic system type, with this one exception.
- -auroraux)
- os=-auroraux
+ -auroraux)
+ os=-auroraux
;;
-solaris1 | -solaris1.*)
os=`echo $os | sed -e ''s|solaris1|sunos4|''`
@@ -1288,20 +1352,21 @@ case $os in
-gnu* | -bsd* | -mach* | -minix* | -genix* | -ultrix* | -irix* \
| -*vms* | -sco* | -esix* | -isc* | -aix* | -cnk* | -sunos |
-sunos[34]*\
| -hpux* | -unos* | -osf* | -luna* | -dgux* | -auroraux* | -solaris* \
- | -sym* | -kopensolaris* \
+ | -sym* | -kopensolaris* | -plan9* \
| -amigaos* | -amigados* | -msdos* | -newsos* | -unicos* | -aof* \
| -aos* | -aros* \
| -nindy* | -vxsim* | -vxworks* | -ebmon* | -hms* | -mvs* \
| -clix* | -riscos* | -uniplus* | -iris* | -rtu* | -xenix* \
| -hiux* | -386bsd* | -knetbsd* | -mirbsd* | -netbsd* \
- | -openbsd* | -solidbsd* \
+ | -bitrig* | -openbsd* | -solidbsd* \
| -ekkobsd* | -kfreebsd* | -freebsd* | -riscix* | -lynxos* \
| -bosx* | -nextstep* | -cxux* | -aout* | -elf* | -oabi* \
| -ptx* | -coff* | -ecoff* | -winnt* | -domain* | -vsta* \
| -udi* | -eabi* | -lites* | -ieee* | -go32* | -aux* \
| -chorusos* | -chorusrdb* | -cegcc* \
- | -cygwin* | -pe* | -psos* | -moss* | -proelf* | -rtems* \
- | -mingw32* | -linux-gnu* | -linux-newlib* | -linux-uclibc* \
+ | -cygwin* | -msys* | -pe* | -psos* | -moss* | -proelf* | -rtems* \
+ | -mingw32* | -mingw64* | -linux-gnu* | -linux-android* \
+ | -linux-newlib* | -linux-musl* | -linux-uclibc* \
| -uxpv* | -beos* | -mpeix* | -udk* \
| -interix* | -uwin* | -mks* | -rhapsody* | -darwin* | -opened* \
| -openstep* | -oskit* | -conix* | -pw32* | -nonstopux* \
@@ -1348,7 +1413,7 @@ case $os in
-opened*)
os=-openedition
;;
- -os400*)
+ -os400*)
os=-os400
;;
-wince*)
@@ -1397,7 +1462,7 @@ case $os in
-sinix*)
os=-sysv4
;;
- -tpf*)
+ -tpf*)
os=-tpf
;;
-triton*)
@@ -1433,17 +1498,14 @@ case $os in
-aros*)
os=-aros
;;
- -kaos*)
- os=-kaos
- ;;
-zvmoe)
os=-zvmoe
;;
-dicos*)
os=-dicos
;;
- -nacl*)
- ;;
+ -nacl*)
+ ;;
-none)
;;
*)
@@ -1466,10 +1528,10 @@ else
# system, and we''ll never get to this point.
case $basic_machine in
- score-*)
+ score-*)
os=-elf
;;
- spu-*)
+ spu-*)
os=-elf
;;
*-acorn)
@@ -1481,8 +1543,23 @@ case $basic_machine in
arm*-semi)
os=-aout
;;
- c4x-* | tic4x-*)
- os=-coff
+ c4x-* | tic4x-*)
+ os=-coff
+ ;;
+ c8051-*)
+ os=-elf
+ ;;
+ hexagon-*)
+ os=-elf
+ ;;
+ tic54x-*)
+ os=-coff
+ ;;
+ tic55x-*)
+ os=-coff
+ ;;
+ tic6x-*)
+ os=-coff
;;
# This must come before the *-dec entry.
pdp10-*)
@@ -1502,14 +1579,11 @@ case $basic_machine in
;;
m68000-sun)
os=-sunos3
- # This also exists in the configure program, but was not the
- # default.
- # os=-sunos4
;;
m68*-cisco)
os=-aout
;;
- mep-*)
+ mep-*)
os=-elf
;;
mips*-cisco)
@@ -1518,6 +1592,9 @@ case $basic_machine in
mips*-*)
os=-elf
;;
+ or1k-*)
+ os=-elf
+ ;;
or32-*)
os=-coff
;;
@@ -1536,7 +1613,7 @@ case $basic_machine in
*-ibm)
os=-aix
;;
- *-knuth)
+ *-knuth)
os=-mmixware
;;
*-wec)
--
1.7.10.4
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Acked-by: Julien Grall <julien.grall@linaro.org>
---
xen/arch/arm/setup.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/xen/arch/arm/setup.c b/xen/arch/arm/setup.c
index 1081b43..cdcc2e7 100644
--- a/xen/arch/arm/setup.c
+++ b/xen/arch/arm/setup.c
@@ -731,6 +731,10 @@ void arch_get_xen_caps(xen_capabilities_info_t *info)
(*info)[0] = ''\0'';
+#ifdef CONFIG_ARM_64
+ snprintf(s, sizeof(s), "xen-%d.%d-aarch64 ", major, minor);
+ safe_strcat(*info, s);
+#endif
snprintf(s, sizeof(s), "xen-%d.%d-armv7l ", major, minor);
safe_strcat(*info, s);
}
--
1.7.10.4
Ian Campbell
2013-Nov-12 17:39 UTC
[PATCH v4 03/17] xen: arm: Add comment regard arm64 zImage v0 vs v1
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Acked-by: Julien Grall <julien.grall@linaro.org>
---
xen/arch/arm/kernel.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/xen/arch/arm/kernel.c b/xen/arch/arm/kernel.c
index 315d12c..7036d94 100644
--- a/xen/arch/arm/kernel.c
+++ b/xen/arch/arm/kernel.c
@@ -139,6 +139,7 @@ static int kernel_try_zimage64_prepare(struct kernel_info
*info,
uint64_t text_offset; /* Image load offset */
uint64_t res1;
uint64_t res2;
+ /* zImage V1 only from here */
uint64_t res3;
uint64_t res4;
uint64_t res5;
--
1.7.10.4
Ian Campbell
2013-Nov-12 17:39 UTC
[PATCH v4 04/17] xen: arm: allocate dom0 memory separately from preparing the dtb
Mixing these two together is a pain, it forces us to prepare the dtb before
processing the kernel which means we don''t know whether the guest is
32- or
64-bit while we construct its DTB.
Instead split out the memory allocation (including 1:1 workaround handling)
and p2m setup into a separate phase and then create a memory node in the DTB
based on the result.
This allows us to move kernel parsing before DTB setup.
As part of this it was also necessary to rework where the decision regarding
the placement of the DTB and initrd in RAM was made. It is now made when
loading the kernel, which allows it to make use of the zImage/ELF specific
information and therefore to make decisions based on complete knowledge and do
it right rather than guessing in prepare_dtb and relying on a later check to
see if things worked.
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
---
v3: Also rework module placement, v2 broke boot because dtb_paddr
wasn''t set
soon enough. This ends up cleaner anyway.
v2: Fixed typo in the commit log
Handle multiple memory nodes as well as individual nodes with several
entries in them.
Strip the original memory node and recreate rather than trying to modify.
---
xen/arch/arm/domain_build.c | 198 ++++++++++++++++++++++---------------------
xen/arch/arm/kernel.c | 80 +++++++++++------
xen/arch/arm/kernel.h | 2 -
3 files changed, 155 insertions(+), 125 deletions(-)
diff --git a/xen/arch/arm/domain_build.c b/xen/arch/arm/domain_build.c
index 186746c..5f12031 100644
--- a/xen/arch/arm/domain_build.c
+++ b/xen/arch/arm/domain_build.c
@@ -63,11 +63,8 @@ struct vcpu *__init alloc_dom0_vcpu0(void)
return alloc_vcpu(dom0, 0, 0);
}
-static int set_memory_reg_11(struct domain *d, struct kernel_info *kinfo,
- const struct dt_property *pp,
- const struct dt_device_node *np, __be32 *new_cell)
+static void allocate_memory_11(struct domain *d, struct kernel_info *kinfo)
{
- int reg_size = dt_cells_to_size(dt_n_addr_cells(np) + dt_n_size_cells(np));
paddr_t start;
paddr_t size;
struct page_info *pg = NULL;
@@ -98,53 +95,61 @@ static int set_memory_reg_11(struct domain *d, struct
kernel_info *kinfo,
if ( res )
panic("Unable to add pages in DOM0: %d\n", res);
- dt_set_range(&new_cell, np, start, size);
-
kinfo->mem.bank[0].start = start;
kinfo->mem.bank[0].size = size;
kinfo->mem.nr_banks = 1;
- return reg_size;
+ kinfo->unassigned_mem -= size;
}
-static int set_memory_reg(struct domain *d, struct kernel_info *kinfo,
- const struct dt_property *pp,
- const struct dt_device_node *np, __be32 *new_cell)
+static void allocate_memory(struct domain *d, struct kernel_info *kinfo)
{
- int reg_size = dt_cells_to_size(dt_n_addr_cells(np) + dt_n_size_cells(np));
- int l = 0;
+
+ struct dt_device_node *memory = NULL;
+ const void *reg;
+ u32 reg_len, reg_size;
unsigned int bank = 0;
- u64 start;
- u64 size;
- int ret;
if ( platform_has_quirk(PLATFORM_QUIRK_DOM0_MAPPING_11) )
- return set_memory_reg_11(d, kinfo, pp, np, new_cell);
+ return allocate_memory_11(d, kinfo);
- while ( kinfo->unassigned_mem > 0 && l + reg_size <=
pp->length
- && kinfo->mem.nr_banks < NR_MEM_BANKS )
+ while ( (memory = dt_find_node_by_type(memory, "memory")) )
{
- ret = dt_device_get_address(np, bank, &start, &size);
- if ( ret )
- panic("Unable to retrieve the bank %u for %s\n",
- bank, dt_node_full_name(np));
-
- if ( size > kinfo->unassigned_mem )
- size = kinfo->unassigned_mem;
- dt_set_range(&new_cell, np, start, size);
-
- printk("Populate P2M
%#"PRIx64"->%#"PRIx64"\n", start, start + size);
- if ( p2m_populate_ram(d, start, start + size) < 0 )
- panic("Failed to populate P2M\n");
- kinfo->mem.bank[kinfo->mem.nr_banks].start = start;
- kinfo->mem.bank[kinfo->mem.nr_banks].size = size;
- kinfo->mem.nr_banks++;
- kinfo->unassigned_mem -= size;
-
- l += reg_size;
- }
+ int l;
+
+ DPRINT("memory node\n");
+
+ reg_size = dt_cells_to_size(dt_n_addr_cells(memory) +
dt_n_size_cells(memory));
- return l;
+ reg = dt_get_property(memory, "reg", ®_len);
+ if ( reg == NULL )
+ panic("Memory node has no reg property!\n");
+
+ for ( l = 0;
+ kinfo->unassigned_mem > 0 && l + reg_size <=
reg_len
+ && kinfo->mem.nr_banks < NR_MEM_BANKS;
+ l += reg_size )
+ {
+ paddr_t start, size;
+
+ if ( dt_device_get_address(memory, bank, &start, &size) )
+ panic("Unable to retrieve the bank %u for %s\n",
+ bank, dt_node_full_name(memory));
+
+ if ( size > kinfo->unassigned_mem )
+ size = kinfo->unassigned_mem;
+
+ printk("Populate P2M
%#"PRIx64"->%#"PRIx64"\n",
+ start, start + size);
+ if ( p2m_populate_ram(d, start, start + size) < 0 )
+ panic("Failed to populate P2M\n");
+ kinfo->mem.bank[kinfo->mem.nr_banks].start = start;
+ kinfo->mem.bank[kinfo->mem.nr_banks].size = size;
+ kinfo->mem.nr_banks++;
+
+ kinfo->unassigned_mem -= size;
+ }
+ }
}
static int write_properties(struct domain *d, struct kernel_info *kinfo,
@@ -193,23 +198,6 @@ static int write_properties(struct domain *d, struct
kernel_info *kinfo,
continue;
}
}
- /*
- * In a memory node: adjust reg property.
- * TODO: handle properly memory node (ie: device_type =
"memory")
- */
- else if ( dt_node_name_is_equal(np, "memory") )
- {
- if ( dt_property_name_is_equal(pp, "reg") )
- {
- new_data = xzalloc_bytes(pp->length);
- if ( new_data == NULL )
- return -FDT_ERR_XEN(ENOMEM);
-
- prop_len = set_memory_reg(d, kinfo, pp, np,
- (__be32 *)new_data);
- prop_data = new_data;
- }
- }
res = fdt_property(kinfo->fdt, pp->name, prop_data, prop_len);
@@ -286,6 +274,46 @@ static int fdt_property_interrupts(void *fdt,
gic_interrupt_t *intr,
return res;
}
+static int make_memory_node(struct domain *d,
+ void *fdt, const struct dt_device_node *np,
+ const struct kernel_info *kinfo)
+{
+ int res, i;
+ int reg_size = dt_cells_to_size(dt_n_addr_cells(np) + dt_n_size_cells(np));
+ __be32 reg[reg_size*kinfo->mem.nr_banks];
+ __be32 *cells;
+
+ DPRINT("Create memory node\n");
+
+ /* ePAPR 3.4 */
+ res = fdt_begin_node(fdt, "memory");
+ if ( res )
+ return res;
+
+ res = fdt_property_string(fdt, "device_type",
"memory");
+ if ( res )
+ return res;
+
+ cells = ®[0];
+ for ( i = 0 ; i < kinfo->mem.nr_banks; i++ )
+ {
+ u64 start = kinfo->mem.bank[i].start;
+ u64 size = kinfo->mem.bank[i].size;
+
+ DPRINT(" Bank %d:
%#"PRIx64"->%#"PRIx64"\n",
+ i, start, start + size);
+
+ dt_set_range(&cells, np, start, size);
+ }
+
+ res = fdt_property(fdt, "reg", reg,
reg_size*kinfo->mem.nr_banks);
+ if ( res )
+ return res;
+
+ res = fdt_end_node(fdt);
+
+ return res;
+}
static int make_hypervisor_node(void *fdt, const struct dt_device_node *parent)
{
@@ -700,6 +728,7 @@ static int handle_node(struct domain *d, struct kernel_info
*kinfo,
DT_MATCH_COMPATIBLE("xen,multiboot-module"),
DT_MATCH_COMPATIBLE("arm,psci"),
DT_MATCH_PATH("/cpus"),
+ DT_MATCH_TYPE("memory"),
DT_MATCH_GIC,
DT_MATCH_TIMER,
{ /* sentinel */ },
@@ -764,6 +793,10 @@ static int handle_node(struct domain *d, struct kernel_info
*kinfo,
if ( np == dt_host )
{
+ res = make_memory_node(d, kinfo->fdt, np, kinfo);
+ if ( res )
+ return res;
+
res = make_hypervisor_node(kinfo->fdt, np);
if ( res )
return res;
@@ -795,14 +828,9 @@ static int prepare_dtb(struct domain *d, struct kernel_info
*kinfo)
const void *fdt;
int new_size;
int ret;
- paddr_t end;
- paddr_t initrd_len;
- paddr_t dtb_len;
ASSERT(dt_host && (dt_host->sibling == NULL));
- kinfo->unassigned_mem = dom0_mem;
-
fdt = device_tree_flattened;
new_size = fdt_totalsize(fdt) + DOM0_FDT_EXTRA_SIZE;
@@ -824,36 +852,6 @@ static int prepare_dtb(struct domain *d, struct kernel_info
*kinfo)
if ( ret < 0 )
goto err;
- /* Align DTB and initrd size to 2Mb. Linux only requires 4 byte alignment
*/
- initrd_len = ROUNDUP(early_info.modules.module[MOD_INITRD].size, MB(2));
- dtb_len = ROUNDUP(fdt_totalsize(kinfo->fdt), MB(2));
- new_size = initrd_len + dtb_len;
-
- /*
- * DTB must be loaded such that it does not conflict with the
- * kernel decompressor. For 32-bit Linux Documentation/arm/Booting
- * recommends just after the 128MB boundary while for 64-bit Linux
- * the recommendation in Documentation/arm64/booting.txt is below
- * 512MB. Place at 128MB, (or, if we have less RAM, as high as
- * possible) in order to satisfy both.
- * If the bootloader provides an initrd, it will be loaded just
- * after the DTB.
- */
- end = kinfo->mem.bank[0].start + kinfo->mem.bank[0].size;
- end = MIN(kinfo->mem.bank[0].start + (128<<20) + new_size, end);
-
- kinfo->initrd_paddr = end - initrd_len;
- kinfo->dtb_paddr = kinfo->initrd_paddr - dtb_len;
-
- if ( kinfo->dtb_paddr < kinfo->mem.bank[0].start ||
- kinfo->mem.bank[0].start + new_size > end )
- {
- printk(XENLOG_ERR "Not enough memory in the first bank for "
- "the device tree.");
- ret = -FDT_ERR_XEN(EINVAL);
- goto err;
- }
-
return 0;
err:
@@ -948,11 +946,19 @@ int construct_dom0(struct domain *d)
d->max_pages = ~0U;
- rc = prepare_dtb(d, &kinfo);
+ kinfo.unassigned_mem = dom0_mem;
+
+ allocate_memory(d, &kinfo);
+
+ rc = kernel_prepare(&kinfo);
if ( rc < 0 )
return rc;
- rc = kernel_prepare(&kinfo);
+#ifdef CONFIG_ARM_64
+ d->arch.type = kinfo.type;
+#endif
+
+ rc = prepare_dtb(d, &kinfo);
if ( rc < 0 )
return rc;
@@ -960,9 +966,6 @@ int construct_dom0(struct domain *d)
if ( rc < 0 )
return rc;
- if ( kinfo.check_overlap )
- kinfo.check_overlap(&kinfo);
-
/* The following loads use the domain''s p2m */
p2m_load_VTTBR(d);
#ifdef CONFIG_ARM_64
@@ -973,6 +976,10 @@ int construct_dom0(struct domain *d)
WRITE_SYSREG(READ_SYSREG(HCR_EL2) | HCR_RW, HCR_EL2);
#endif
+ /*
+ * kernel_load will determine the placement of the initrd & fdt in
+ * RAM, so call it first.
+ */
kernel_load(&kinfo);
/* initrd_load will fix up the fdt, so call it before dtb_load */
initrd_load(&kinfo);
@@ -987,7 +994,6 @@ int construct_dom0(struct domain *d)
regs->pc = (register_t)kinfo.entry;
-
if ( is_pv32_domain(d) )
{
regs->cpsr = PSR_GUEST32_INIT;
diff --git a/xen/arch/arm/kernel.c b/xen/arch/arm/kernel.c
index 7036d94..9046797 100644
--- a/xen/arch/arm/kernel.c
+++ b/xen/arch/arm/kernel.c
@@ -68,26 +68,56 @@ void copy_from_paddr(void *dst, paddr_t paddr, unsigned long
len, int attrindx)
clear_fixmap(FIXMAP_MISC);
}
-static void kernel_zimage_check_overlap(struct kernel_info *info)
+static void place_modules(struct kernel_info *info,
+ paddr_t kernel_start,
+ paddr_t kernel_end)
{
- paddr_t zimage_start = info->zimage.load_addr;
- paddr_t zimage_end = info->zimage.load_addr + info->zimage.len;
- paddr_t start = info->dtb_paddr;
- paddr_t end;
+ /* Align DTB and initrd size to 2Mb. Linux only requires 4 byte alignment
*/
+ const paddr_t initrd_len +
ROUNDUP(early_info.modules.module[MOD_INITRD].size, MB(2));
+ const paddr_t dtb_len = ROUNDUP(fdt_totalsize(info->fdt), MB(2));
+ const paddr_t total = initrd_len + dtb_len;
- end = info->initrd_paddr + early_info.modules.module[MOD_INITRD].size;
+ /* Convenient */
+ const paddr_t mem_start = info->mem.bank[0].start;
+ const paddr_t mem_size = info->mem.bank[0].size;
+ const paddr_t mem_end = mem_start + mem_size;
+ const paddr_t kernel_size = kernel_end - kernel_start;
+
+ paddr_t addr;
+
+ if ( total + kernel_size > mem_size )
+ panic("Not enough memory in the first bank for the
dtb+initrd.");
/*
- * In the dom0 memory, the initrd will be just after the DTB. So we
- * only need to check if the zImage range will overlap the
- * DTB-initrd range.
+ * DTB must be loaded such that it does not conflict with the
+ * kernel decompressor. For 32-bit Linux Documentation/arm/Booting
+ * recommends just after the 128MB boundary while for 64-bit Linux
+ * the recommendation in Documentation/arm64/booting.txt is below
+ * 512MB.
+ *
+ * If the bootloader provides an initrd, it will be loaded just
+ * after the DTB.
+ *
+ * We try to place dtb+initrd at 128MB, (or, if we have less RAM,
+ * as high as possible). If there is no space then fallback to
+ * just after the kernel, if there is room, otherwise just before.
*/
- if ( (start > zimage_end) || (end < zimage_start) )
+
+ if ( kernel_end < MIN(mem_start + MB(128), mem_end - total) )
+ addr = MIN(mem_start + MB(128), mem_end - total);
+ else if ( mem_end - ROUNDUP(kernel_end, MB(2)) >= total )
+ addr = ROUNDUP(kernel_end, MB(2));
+ else if ( kernel_start - mem_start >= total )
+ addr = kernel_start - total;
+ else
+ {
+ panic("Unable to find suitable location for dtb+initrd.");
return;
+ }
- panic(XENLOG_ERR "The kernel(0x%"PRIpaddr"-0x%"PRIpaddr
- ") is overlapping the
DTB-initrd(0x%"PRIpaddr"-0x%"PRIpaddr")\n",
- zimage_start, zimage_end, start, end);
+ info->dtb_paddr = addr;
+ info->initrd_paddr = info->dtb_paddr + dtb_len;
}
static void kernel_zimage_load(struct kernel_info *info)
@@ -98,6 +128,8 @@ static void kernel_zimage_load(struct kernel_info *info)
paddr_t len = info->zimage.len;
unsigned long offs;
+ place_modules(info, load_addr, load_addr + len);
+
printk("Loading zImage from %"PRIpaddr" to
%"PRIpaddr"-%"PRIpaddr"\n",
paddr, load_addr, load_addr + len);
for ( offs = 0; offs < len; )
@@ -176,7 +208,6 @@ static int kernel_try_zimage64_prepare(struct kernel_info
*info,
info->entry = info->zimage.load_addr;
info->load = kernel_zimage_load;
- info->check_overlap = kernel_zimage_check_overlap;
info->type = DOMAIN_PV64;
@@ -236,17 +267,9 @@ static int kernel_try_zimage32_prepare(struct kernel_info
*info,
paddr_t load_end;
load_end = info->mem.bank[0].start + info->mem.bank[0].size;
- load_end = MIN(info->mem.bank[0].start + (128<<20), load_end);
-
- /*
- * FDT is loaded above 128M or as high as possible, so the
- * only way we can clash is if we have <=128MB, in which case
- * FDT will be right at the end and so dtb_paddr will be below
- * the proposed kernel load address. Move the kernel down if
- * necessary.
- */
- if ( load_end >= info->dtb_paddr )
- load_end = info->dtb_paddr;
+ load_end = MIN(info->mem.bank[0].start + MB(128), load_end);
+
+ load_end += MB(2);
info->zimage.load_addr = load_end - end;
/* Align to 2MB */
@@ -258,7 +281,6 @@ static int kernel_try_zimage32_prepare(struct kernel_info
*info,
info->entry = info->zimage.load_addr;
info->load = kernel_zimage_load;
- info->check_overlap = kernel_zimage_check_overlap;
#ifdef CONFIG_ARM_64
info->type = DOMAIN_PV32;
@@ -269,10 +291,15 @@ static int kernel_try_zimage32_prepare(struct kernel_info
*info,
static void kernel_elf_load(struct kernel_info *info)
{
+ place_modules(info,
+ info->elf.parms.virt_kstart,
+ info->elf.parms.virt_kend);
+
printk("Loading ELF image into guest memory\n");
info->elf.elf.dest_base = (void*)(unsigned
long)info->elf.parms.virt_kstart;
info->elf.elf.dest_size info->elf.parms.virt_kend -
info->elf.parms.virt_kstart;
+
elf_load_binary(&info->elf.elf);
printk("Free temporary kernel buffer\n");
@@ -321,7 +348,6 @@ static int kernel_try_elf_prepare(struct kernel_info *info,
*/
info->entry = info->elf.parms.virt_entry;
info->load = kernel_elf_load;
- info->check_overlap = NULL;
if ( elf_check_broken(&info->elf.elf) )
printk("Xen: warning: ELF kernel broken: %s\n",
diff --git a/xen/arch/arm/kernel.h b/xen/arch/arm/kernel.h
index debf590..b48c2c9 100644
--- a/xen/arch/arm/kernel.h
+++ b/xen/arch/arm/kernel.h
@@ -40,8 +40,6 @@ struct kernel_info {
};
void (*load)(struct kernel_info *info);
- /* Callback to check overlap between the kernel and the device tree */
- void (*check_overlap)(struct kernel_info *kinfo);
int load_attr;
};
--
1.7.10.4
Ian Campbell
2013-Nov-12 17:39 UTC
[PATCH v4 05/17] xen: arm: add enable-method to cpu nodes for arm64 guests.
This is required by the Linux arm64 boot protocol.
We use PSCI.
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Acked-by: Julien Grall <julien.grall@linaro.org>
---
xen/arch/arm/domain_build.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/xen/arch/arm/domain_build.c b/xen/arch/arm/domain_build.c
index 5f12031..5232d1f 100644
--- a/xen/arch/arm/domain_build.c
+++ b/xen/arch/arm/domain_build.c
@@ -495,6 +495,13 @@ static int make_cpus_node(const struct domain *d, void
*fdt,
return res;
}
+ if ( is_pv64_domain(d) )
+ {
+ res = fdt_property_string(fdt, "enable-method",
"psci");
+ if ( res )
+ return res;
+ }
+
res = fdt_end_node(fdt);
if ( res )
return res;
--
1.7.10.4
Ian Campbell
2013-Nov-12 17:39 UTC
[PATCH v4 06/17] xen: arm: include header for for arch_do_{sys, dom}ctl prototype
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
---
v4: split out from "xen: arm: implement XEN_DOMCTL_set_address_size"
---
xen/arch/arm/domctl.c | 1 +
xen/arch/arm/sysctl.c | 1 +
2 files changed, 2 insertions(+)
diff --git a/xen/arch/arm/domctl.c b/xen/arch/arm/domctl.c
index 851ee40..4cf0294 100644
--- a/xen/arch/arm/domctl.c
+++ b/xen/arch/arm/domctl.c
@@ -9,6 +9,7 @@
#include <xen/lib.h>
#include <xen/errno.h>
#include <xen/sched.h>
+#include <xen/hypercall.h>
#include <public/domctl.h>
long arch_do_domctl(struct xen_domctl *domctl, struct domain *d,
diff --git a/xen/arch/arm/sysctl.c b/xen/arch/arm/sysctl.c
index 6388204..98bab6a 100644
--- a/xen/arch/arm/sysctl.c
+++ b/xen/arch/arm/sysctl.c
@@ -10,6 +10,7 @@
#include <xen/types.h>
#include <xen/lib.h>
#include <xen/errno.h>
+#include <xen/hypercall.h>
#include <public/sysctl.h>
void arch_do_physinfo(xen_sysctl_physinfo_t *pi) { }
--
1.7.10.4
Ian Campbell
2013-Nov-12 17:39 UTC
[PATCH v4 07/17] xen: arm: implement XEN_DOMCTL_set_address_size
This is subarch specific to plumb through to arm32 and arm64 versions.
The toolstack uses this to select 32- vs 64-bit guests (or rather it does on
x86 and soon will for arm too).
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Acked-by: Julien Grall <julien.grall@linaro.org>
---
v4: moved addition of xen/hypercall.h include into a precursor patch.
---
xen/arch/arm/arm32/Makefile | 1 +
xen/arch/arm/arm32/domctl.c | 35 +++++++++++++++++++++++
xen/arch/arm/arm64/Makefile | 1 +
xen/arch/arm/arm64/domctl.c | 59 +++++++++++++++++++++++++++++++++++++++
xen/arch/arm/domctl.c | 6 +++-
xen/include/asm-arm/hypercall.h | 3 ++
6 files changed, 104 insertions(+), 1 deletion(-)
create mode 100644 xen/arch/arm/arm32/domctl.c
create mode 100644 xen/arch/arm/arm64/domctl.c
diff --git a/xen/arch/arm/arm32/Makefile b/xen/arch/arm/arm32/Makefile
index aacdcb9..65ecff4 100644
--- a/xen/arch/arm/arm32/Makefile
+++ b/xen/arch/arm/arm32/Makefile
@@ -7,5 +7,6 @@ obj-y += traps.o
obj-y += domain.o
obj-y += vfp.o
obj-y += smpboot.o
+obj-y += domctl.o
obj-$(EARLY_PRINTK) += debug.o
diff --git a/xen/arch/arm/arm32/domctl.c b/xen/arch/arm/arm32/domctl.c
new file mode 100644
index 0000000..c2ca4d3
--- /dev/null
+++ b/xen/arch/arm/arm32/domctl.c
@@ -0,0 +1,35 @@
+/******************************************************************************
+ * Subarch-specific domctl.c
+ *
+ * Copyright (c) 2013, Citrix Systems
+ */
+
+#include <xen/config.h>
+#include <xen/types.h>
+#include <xen/lib.h>
+#include <xen/errno.h>
+#include <xen/sched.h>
+#include <xen/hypercall.h>
+#include <public/domctl.h>
+
+long subarch_do_domctl(struct xen_domctl *domctl, struct domain *d,
+ XEN_GUEST_HANDLE_PARAM(xen_domctl_t) u_domctl)
+{
+ switch ( domctl->cmd )
+ {
+ case XEN_DOMCTL_set_address_size:
+ return domctl->u.address_size.size == 32 ? 0 : -EINVAL;
+ default:
+ return -ENOSYS;
+ }
+}
+
+/*
+ * Local variables:
+ * mode: C
+ * c-file-style: "BSD"
+ * c-basic-offset: 4
+ * tab-width: 4
+ * indent-tabs-mode: nil
+ * End:
+ */
diff --git a/xen/arch/arm/arm64/Makefile b/xen/arch/arm/arm64/Makefile
index 5d28bad..d2d5875 100644
--- a/xen/arch/arm/arm64/Makefile
+++ b/xen/arch/arm/arm64/Makefile
@@ -6,5 +6,6 @@ obj-y += traps.o
obj-y += domain.o
obj-y += vfp.o
obj-y += smpboot.o
+obj-y += domctl.o
obj-$(EARLY_PRINTK) += debug.o
diff --git a/xen/arch/arm/arm64/domctl.c b/xen/arch/arm/arm64/domctl.c
new file mode 100644
index 0000000..e2b4617
--- /dev/null
+++ b/xen/arch/arm/arm64/domctl.c
@@ -0,0 +1,59 @@
+/******************************************************************************
+ * Subarch-specific domctl.c
+ *
+ * Copyright (c) 2013, Citrix Systems
+ */
+
+#include <xen/config.h>
+#include <xen/types.h>
+#include <xen/lib.h>
+#include <xen/errno.h>
+#include <xen/sched.h>
+#include <xen/hypercall.h>
+#include <public/domctl.h>
+
+static long switch_mode(struct domain *d, enum domain_type type)
+{
+ if ( d == NULL )
+ return -EINVAL;
+ if ( d->tot_pages != 0 )
+ return -EBUSY;
+ if ( d->arch.type == type )
+ return 0;
+
+ d->arch.type = type;
+
+ return 0;
+}
+
+long subarch_do_domctl(struct xen_domctl *domctl, struct domain *d,
+ XEN_GUEST_HANDLE_PARAM(xen_domctl_t) u_domctl)
+{
+ switch ( domctl->cmd )
+ {
+ case XEN_DOMCTL_set_address_size:
+ switch ( domctl->u.address_size.size )
+ {
+ case 32:
+ return switch_mode(d, DOMAIN_PV32);
+ case 64:
+ return switch_mode(d, DOMAIN_PV64);
+ default:
+ return -EINVAL;
+ }
+ break;
+
+ default:
+ return -ENOSYS;
+ }
+}
+
+/*
+ * Local variables:
+ * mode: C
+ * c-file-style: "BSD"
+ * c-basic-offset: 4
+ * tab-width: 4
+ * indent-tabs-mode: nil
+ * End:
+ */
diff --git a/xen/arch/arm/domctl.c b/xen/arch/arm/domctl.c
index 4cf0294..546e86b 100644
--- a/xen/arch/arm/domctl.c
+++ b/xen/arch/arm/domctl.c
@@ -15,7 +15,11 @@
long arch_do_domctl(struct xen_domctl *domctl, struct domain *d,
XEN_GUEST_HANDLE_PARAM(xen_domctl_t) u_domctl)
{
- return -ENOSYS;
+ switch ( domctl->cmd )
+ {
+ default:
+ return subarch_do_domctl(domctl, d, u_domctl);
+ }
}
void arch_get_info_guest(struct vcpu *v, vcpu_guest_context_u c)
diff --git a/xen/include/asm-arm/hypercall.h b/xen/include/asm-arm/hypercall.h
index 3327a96..94a92d4 100644
--- a/xen/include/asm-arm/hypercall.h
+++ b/xen/include/asm-arm/hypercall.h
@@ -6,6 +6,9 @@ int do_physdev_op(int cmd, XEN_GUEST_HANDLE_PARAM(void) arg);
long do_arm_vcpu_op(int cmd, int vcpuid, XEN_GUEST_HANDLE_PARAM(void) arg);
+long subarch_do_domctl(struct xen_domctl *domctl, struct domain *d,
+ XEN_GUEST_HANDLE_PARAM(xen_domctl_t) u_domctl);
+
#endif /* __ASM_ARM_HYPERCALL_H__ */
/*
* Local variables:
--
1.7.10.4
Ian Campbell
2013-Nov-12 17:39 UTC
[PATCH v4 08/17] xen: arm: implement arch_set_info_guest for 64-bit vcpus
This all seems too easy...
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Acked-by: Julien Grall <julien.grall@linaro.org>
---
xen/arch/arm/domain.c | 64 ++++++++++++++++++++++++++++++++++++++-----------
1 file changed, 50 insertions(+), 14 deletions(-)
diff --git a/xen/arch/arm/domain.c b/xen/arch/arm/domain.c
index cb0424d..5ff7adf 100644
--- a/xen/arch/arm/domain.c
+++ b/xen/arch/arm/domain.c
@@ -550,7 +550,7 @@ void arch_domain_destroy(struct domain *d)
free_xenheap_page(d->shared_info);
}
-static int is_guest_psr(uint32_t psr)
+static int is_guest_pv32_psr(uint32_t psr)
{
switch (psr & PSR_MODE_MASK)
{
@@ -569,6 +569,29 @@ static int is_guest_psr(uint32_t psr)
}
}
+
+#ifdef CONFIG_ARM_64
+static int is_guest_pv64_psr(uint32_t psr)
+{
+ if ( psr & PSR_MODE_BIT )
+ return 0;
+
+ switch (psr & PSR_MODE_MASK)
+ {
+ case PSR_MODE_EL1h:
+ case PSR_MODE_EL1t:
+ case PSR_MODE_EL0t:
+ return 1;
+ case PSR_MODE_EL3h:
+ case PSR_MODE_EL3t:
+ case PSR_MODE_EL2h:
+ case PSR_MODE_EL2t:
+ default:
+ return 0;
+ }
+}
+#endif
+
/*
* Initialise VCPU state. The context can be supplied by either the
* toolstack (XEN_DOMCTL_setvcpucontext) or the guest
@@ -580,19 +603,32 @@ int arch_set_info_guest(
struct vcpu_guest_context *ctxt = c.nat;
struct vcpu_guest_core_regs *regs = &c.nat->user_regs;
- if ( !is_guest_psr(regs->cpsr) )
- return -EINVAL;
-
- if ( regs->spsr_svc && !is_guest_psr(regs->spsr_svc) )
- return -EINVAL;
- if ( regs->spsr_abt && !is_guest_psr(regs->spsr_abt) )
- return -EINVAL;
- if ( regs->spsr_und && !is_guest_psr(regs->spsr_und) )
- return -EINVAL;
- if ( regs->spsr_irq && !is_guest_psr(regs->spsr_irq) )
- return -EINVAL;
- if ( regs->spsr_fiq && !is_guest_psr(regs->spsr_fiq) )
- return -EINVAL;
+ if ( is_pv32_domain(v->domain) )
+ {
+ if ( !is_guest_pv32_psr(regs->cpsr) )
+ return -EINVAL;
+
+ if ( regs->spsr_svc && !is_guest_pv32_psr(regs->spsr_svc)
)
+ return -EINVAL;
+ if ( regs->spsr_abt && !is_guest_pv32_psr(regs->spsr_abt)
)
+ return -EINVAL;
+ if ( regs->spsr_und && !is_guest_pv32_psr(regs->spsr_und)
)
+ return -EINVAL;
+ if ( regs->spsr_irq && !is_guest_pv32_psr(regs->spsr_irq)
)
+ return -EINVAL;
+ if ( regs->spsr_fiq && !is_guest_pv32_psr(regs->spsr_fiq)
)
+ return -EINVAL;
+ }
+#ifdef CONFIG_ARM_64
+ else
+ {
+ if ( !is_guest_pv64_psr(regs->cpsr) )
+ return -EINVAL;
+
+ if ( regs->spsr_el1 && !is_guest_pv64_psr(regs->spsr_el1)
)
+ return -EINVAL;
+ }
+#endif
vcpu_regs_user_to_hyp(v, regs);
--
1.7.10.4
Ian Campbell
2013-Nov-12 17:39 UTC
[PATCH v4 09/17] tools: check for libfdt when building for ARM
libxl is going to want this to aid in the creation of guest device tree blobs.
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Acked-by: Ian Jackson <ian.jackson@eu.citrix.com>
---
Rerun autogen.sh when committing
---
tools/config.h.in | 3 +++
tools/configure | 52 ++++++++++++++++++++++++++++++++++++++++++++++++++++
tools/configure.ac | 6 ++++++
3 files changed, 61 insertions(+)
diff --git a/tools/config.h.in b/tools/config.h.in
index b1c9531..015f2a1 100644
--- a/tools/config.h.in
+++ b/tools/config.h.in
@@ -9,6 +9,9 @@
/* Define to 1 if you have the `crypto'' library (-lcrypto). */
#undef HAVE_LIBCRYPTO
+/* Define to 1 if you have the `fdt'' library (-lfdt). */
+#undef HAVE_LIBFDT
+
/* Define to 1 if you have the `yajl'' library (-lyajl). */
#undef HAVE_LIBYAJL
diff --git a/tools/configure b/tools/configure
index ff82b32..afc3000 100755
--- a/tools/configure
+++ b/tools/configure
@@ -7959,6 +7959,58 @@ fi
+# FDT is needed only on ARM
+case "$host_cpu" in
+arm*|aarch64)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for fdt_create in
-lfdt" >&5
+$as_echo_n "checking for fdt_create in -lfdt... " >&6; }
+if ${ac_cv_lib_fdt_fdt_create+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ ac_check_lib_save_LIBS=$LIBS
+LIBS="-lfdt $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+
+/* Override any GCC internal prototype to avoid an error.
+ Use char because int might match the return type of a GCC
+ builtin and then its argument prototype would still apply. */
+#ifdef __cplusplus
+extern "C"
+#endif
+char fdt_create ();
+int
+main ()
+{
+return fdt_create ();
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+ ac_cv_lib_fdt_fdt_create=yes
+else
+ ac_cv_lib_fdt_fdt_create=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+ conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result:
$ac_cv_lib_fdt_fdt_create" >&5
+$as_echo "$ac_cv_lib_fdt_fdt_create" >&6; }
+if test "x$ac_cv_lib_fdt_fdt_create" = xyes; then :
+ cat >>confdefs.h <<_ACEOF
+#define HAVE_LIBFDT 1
+_ACEOF
+
+ LIBS="-lfdt $LIBS"
+
+else
+ as_fn_error $? "Could not find libfdt" "$LINENO" 5
+fi
+
+esac
+
# Checks for header files.
for ac_header in yajl/yajl_version.h sys/eventfd.h
do :
diff --git a/tools/configure.ac b/tools/configure.ac
index b2941a4..0754f0e 100644
--- a/tools/configure.ac
+++ b/tools/configure.ac
@@ -227,6 +227,12 @@ AC_CHECK_LIB([z], [deflateCopy], [], [AC_MSG_ERROR([Could
not find zlib])])
AC_CHECK_LIB([iconv], [libiconv_open], [libiconv="y"],
[libiconv="n"])
AC_SUBST(libiconv)
+# FDT is needed only on ARM
+case "$host_cpu" in
+arm*|aarch64)
+AC_CHECK_LIB([fdt], [fdt_create], [], [AC_MSG_ERROR([Could not find libfdt])])
+esac
+
# Checks for header files.
AC_CHECK_HEADERS([yajl/yajl_version.h sys/eventfd.h])
--
1.7.10.4
Ian Campbell
2013-Nov-12 17:39 UTC
[PATCH v4 10/17] xen: arm: define guest virtual platform in API headers
The tools and the hypervisor need to agree on various aspects of the guest
environment, such as interrupt numbers, memory layout, initial register values
for registers which are implementation defined etc. Therefore move the
associated defines into the public interface headers, or create them as
necessary.
This just exposes the current de-facto standard guest layout, which may be
subject to change in the future. This deliberately does not make the guest
layout dynamic since there is currently no need.
These values should not be exposed to guests, they should find these things
out via device tree or should not be relying on implementation defined
defaults.
Various bits of the hypervisor needed to change to configure dom0 with the real
platform values while using the virtual platform configuration for guests.
Arrange for this where appropriate and plumb through as needed.
We also need to expose some 64-bit values (e.g. PSR_GUEST64_INIT) for the
benefit of 32 bit toolstacks building 64 bit guests.
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
---
v4: dropped a spurious aarch64 ifdef
improved some comments and expand the commit message to clarify that this
is just implementing the current static de-facto setup.
put back PSR_GUEST32_INIT which disapeared somewhere along the line
---
tools/libxc/xc_dom_arm.c | 4 +--
xen/arch/arm/domain.c | 8 ++++--
xen/arch/arm/domain_build.c | 13 +++++----
xen/arch/arm/gic.c | 21 +++++++++-----
xen/arch/arm/psci.c | 2 +-
xen/arch/arm/traps.c | 2 +-
xen/arch/arm/vtimer.c | 13 ++++++---
xen/include/asm-arm/domain.h | 1 +
xen/include/asm-arm/event.h | 3 +-
xen/include/asm-arm/gic.h | 3 --
xen/include/asm-arm/processor.h | 7 -----
xen/include/asm-arm/psci.h | 5 ----
xen/include/public/arch-arm.h | 58 +++++++++++++++++++++++++++++++--------
13 files changed, 90 insertions(+), 50 deletions(-)
diff --git a/tools/libxc/xc_dom_arm.c b/tools/libxc/xc_dom_arm.c
index df59ffb..9f3fdd3 100644
--- a/tools/libxc/xc_dom_arm.c
+++ b/tools/libxc/xc_dom_arm.c
@@ -126,13 +126,13 @@ static int vcpu_arm(struct xc_dom_image *dom, void *ptr)
*/
ctxt->user_regs.r2_usr = 0xffffffff;
- ctxt->sctlr = /* #define SCTLR_BASE */0x00c50078;
+ ctxt->sctlr = SCTLR_GUEST_INIT;
ctxt->ttbr0 = 0;
ctxt->ttbr1 = 0;
ctxt->ttbcr = 0; /* Defined Reset Value */
- ctxt->user_regs.cpsr =
PSR_ABT_MASK|PSR_FIQ_MASK|PSR_IRQ_MASK|PSR_MODE_SVC;
+ ctxt->user_regs.cpsr = PSR_GUEST32_INIT;
ctxt->flags = VGCF_online;
diff --git a/xen/arch/arm/domain.c b/xen/arch/arm/domain.c
index 5ff7adf..2f57d01 100644
--- a/xen/arch/arm/domain.c
+++ b/xen/arch/arm/domain.c
@@ -461,7 +461,8 @@ int vcpu_initialise(struct vcpu *v)
if ( is_idle_vcpu(v) )
return rc;
- v->arch.sctlr = SCTLR_BASE;
+ v->arch.sctlr = SCTLR_GUEST_INIT;
+
/*
* By default exposes an SMP system with AFF0 set to the VCPU ID
* TODO: Handle multi-threading processor and cluster
@@ -525,6 +526,9 @@ int arch_domain_create(struct domain *d, unsigned int
domcr_flags)
if ( (rc = vcpu_domain_init(d)) != 0 )
goto fail;
+ /* XXX dom0 needs more intelligent selection of PPI */
+ d->arch.evtchn_irq = GUEST_EVTCHN_PPI;
+
/*
* Virtual UART is only used by linux early printk and decompress code.
* Only use it for dom0 because the linux kernel may not support
@@ -740,7 +744,7 @@ void vcpu_mark_events_pending(struct vcpu *v)
if ( already_pending )
return;
- vgic_vcpu_inject_irq(v, VGIC_IRQ_EVTCHN_CALLBACK, 1);
+ vgic_vcpu_inject_irq(v, v->domain->arch.evtchn_irq, 1);
}
/*
diff --git a/xen/arch/arm/domain_build.c b/xen/arch/arm/domain_build.c
index 5232d1f..3d04274 100644
--- a/xen/arch/arm/domain_build.c
+++ b/xen/arch/arm/domain_build.c
@@ -315,7 +315,8 @@ static int make_memory_node(struct domain *d,
return res;
}
-static int make_hypervisor_node(void *fdt, const struct dt_device_node *parent)
+static int make_hypervisor_node(struct domain *d,
+ void *fdt, const struct dt_device_node *parent)
{
const char compat[]
"xen,xen-"__stringify(XEN_VERSION)"."__stringify(XEN_SUBVERSION)"\0"
@@ -363,8 +364,8 @@ static int make_hypervisor_node(void *fdt, const struct
dt_device_node *parent)
*
* TODO: Handle correctly the cpumask
*/
- DPRINT(" Event channel interrupt to %u\n",
VGIC_IRQ_EVTCHN_CALLBACK);
- set_interrupt_ppi(intr, VGIC_IRQ_EVTCHN_CALLBACK, 0xf,
+ DPRINT(" Event channel interrupt to %u\n",
d->arch.evtchn_irq);
+ set_interrupt_ppi(intr, d->arch.evtchn_irq, 0xf,
DT_IRQ_TYPE_LEVEL_LOW);
res = fdt_property_interrupts(fdt, &intr, 1);
@@ -395,11 +396,11 @@ static int make_psci_node(void *fdt, const struct
dt_device_node *parent)
if ( res )
return res;
- res = fdt_property_cell(fdt, "cpu_off", __PSCI_cpu_off);
+ res = fdt_property_cell(fdt, "cpu_off", PSCI_cpu_off);
if ( res )
return res;
- res = fdt_property_cell(fdt, "cpu_on", __PSCI_cpu_on);
+ res = fdt_property_cell(fdt, "cpu_on", PSCI_cpu_on);
if ( res )
return res;
@@ -804,7 +805,7 @@ static int handle_node(struct domain *d, struct kernel_info
*kinfo,
if ( res )
return res;
- res = make_hypervisor_node(kinfo->fdt, np);
+ res = make_hypervisor_node(d, kinfo->fdt, np);
if ( res )
return res;
diff --git a/xen/arch/arm/gic.c b/xen/arch/arm/gic.c
index 74575cd..33c6b8d 100644
--- a/xen/arch/arm/gic.c
+++ b/xen/arch/arm/gic.c
@@ -717,7 +717,7 @@ int gic_events_need_delivery(void)
void gic_inject(void)
{
if ( vcpu_info(current, evtchn_upcall_pending) )
- vgic_vcpu_inject_irq(current, VGIC_IRQ_EVTCHN_CALLBACK, 1);
+ vgic_vcpu_inject_irq(current, current->domain->arch.evtchn_irq,
1);
gic_restore_pending_irqs(current);
if (!gic_events_need_delivery())
@@ -823,13 +823,20 @@ void gic_interrupt(struct cpu_user_regs *regs, int is_fiq)
int gicv_setup(struct domain *d)
{
- /* TODO: Retrieve distributor and CPU guest base address from the
- * guest DTS
- * For the moment we use dom0 DTS
+ /*
+ * Domain 0 gets the hardware address.
+ * Guests get the virtual platform layout.
*/
- d->arch.vgic.dbase = gic.dbase;
- d->arch.vgic.cbase = gic.cbase;
-
+ if ( d == dom0 )
+ {
+ d->arch.vgic.dbase = gic.dbase;
+ d->arch.vgic.cbase = gic.cbase;
+ }
+ else
+ {
+ d->arch.vgic.dbase = GUEST_GICD_BASE;
+ d->arch.vgic.cbase = GUEST_GICC_BASE;
+ }
d->arch.vgic.nr_lines = 0;
diff --git a/xen/arch/arm/psci.c b/xen/arch/arm/psci.c
index 6c3be47..c82884f 100644
--- a/xen/arch/arm/psci.c
+++ b/xen/arch/arm/psci.c
@@ -43,7 +43,7 @@ int do_psci_cpu_on(uint32_t vcpuid, register_t entry_point)
memset(ctxt, 0, sizeof(*ctxt));
ctxt->user_regs.pc64 = (u64) entry_point;
- ctxt->sctlr = SCTLR_BASE;
+ ctxt->sctlr = SCTLR_GUEST_INIT;
ctxt->ttbr0 = 0;
ctxt->ttbr1 = 0;
ctxt->ttbcr = 0; /* Defined Reset Value */
diff --git a/xen/arch/arm/traps.c b/xen/arch/arm/traps.c
index 287dd7b..f64b2b8 100644
--- a/xen/arch/arm/traps.c
+++ b/xen/arch/arm/traps.c
@@ -870,7 +870,7 @@ typedef struct {
} arm_psci_t;
#define PSCI(_name, _nr_args) \
- [ __PSCI_ ## _name ] = { \
+ [ PSCI_ ## _name ] = { \
.fn = (arm_psci_fn_t) &do_psci_ ## _name, \
.nr_args = _nr_args, \
}
diff --git a/xen/arch/arm/vtimer.c b/xen/arch/arm/vtimer.c
index d58a630..f323453 100644
--- a/xen/arch/arm/vtimer.c
+++ b/xen/arch/arm/vtimer.c
@@ -54,21 +54,26 @@ int vcpu_domain_init(struct domain *d)
int vcpu_vtimer_init(struct vcpu *v)
{
struct vtimer *t = &v->arch.phys_timer;
+ bool_t d0 = (v->domain == dom0);
- /* TODO: Retrieve physical and virtual timer IRQ from the guest
- * DT. For the moment we use dom0 DT
+ /*
+ * Domain 0 uses the hardware interrupts, guests get the virtual platform.
*/
init_timer(&t->timer, phys_timer_expired, t, v->processor);
t->ctl = 0;
t->cval = NOW();
- t->irq = timer_dt_irq(TIMER_PHYS_NONSECURE_PPI)->irq;
+ t->irq = d0
+ ? timer_dt_irq(TIMER_PHYS_NONSECURE_PPI)->irq
+ : GUEST_TIMER_PHYS_NS_PPI;
t->v = v;
t = &v->arch.virt_timer;
init_timer(&t->timer, virt_timer_expired, t, v->processor);
t->ctl = 0;
- t->irq = timer_dt_irq(TIMER_VIRT_PPI)->irq;
+ t->irq = d0
+ ? timer_dt_irq(TIMER_VIRT_PPI)->irq
+ : GUEST_TIMER_VIRT_PPI;
t->v = v;
return 0;
diff --git a/xen/include/asm-arm/domain.h b/xen/include/asm-arm/domain.h
index 67bfbbc..53847a9 100644
--- a/xen/include/asm-arm/domain.h
+++ b/xen/include/asm-arm/domain.h
@@ -112,6 +112,7 @@ struct arch_domain
spinlock_t lock;
} vuart;
+ int evtchn_irq;
} __cacheline_aligned;
struct arch_vcpu
diff --git a/xen/include/asm-arm/event.h b/xen/include/asm-arm/event.h
index 04d854f..dd3ad13 100644
--- a/xen/include/asm-arm/event.h
+++ b/xen/include/asm-arm/event.h
@@ -15,7 +15,8 @@ static inline int vcpu_event_delivery_is_enabled(struct vcpu
*v)
static inline int local_events_need_delivery_nomask(void)
{
- struct pending_irq *p = irq_to_pending(current, VGIC_IRQ_EVTCHN_CALLBACK);
+ struct pending_irq *p = irq_to_pending(current,
+
current->domain->arch.evtchn_irq);
/* XXX: if the first interrupt has already been delivered, we should
* check whether any other interrupts with priority higher than the
diff --git a/xen/include/asm-arm/gic.h b/xen/include/asm-arm/gic.h
index 0a890be..41f0b3b 100644
--- a/xen/include/asm-arm/gic.h
+++ b/xen/include/asm-arm/gic.h
@@ -129,9 +129,6 @@
#define GICH_LR_CPUID_SHIFT 9
#define GICH_VTR_NRLRGS 0x3f
-/* XXX: write this into the DT */
-#define VGIC_IRQ_EVTCHN_CALLBACK 31
-
#ifndef __ASSEMBLY__
#include <xen/device_tree.h>
diff --git a/xen/include/asm-arm/processor.h b/xen/include/asm-arm/processor.h
index 5294421..3da3a3d 100644
--- a/xen/include/asm-arm/processor.h
+++ b/xen/include/asm-arm/processor.h
@@ -48,15 +48,8 @@
#define SCTLR_A (1<<1)
#define SCTLR_M (1<<0)
-#define SCTLR_BASE 0x00c50078
#define HSCTLR_BASE 0x30c51878
-#define PSR_GUEST32_INIT (PSR_ABT_MASK|PSR_FIQ_MASK|PSR_IRQ_MASK|PSR_MODE_SVC)
-
-#ifdef CONFIG_ARM_64
-#define PSR_GUEST64_INIT (PSR_ABT_MASK|PSR_FIQ_MASK|PSR_IRQ_MASK|PSR_MODE_EL1h)
-#endif
-
/* HCR Hyp Configuration Register */
#define HCR_RW (1<<31) /* Register Width, ARM64 only */
#define HCR_TGE (1<<27) /* Trap General Exceptions */
diff --git a/xen/include/asm-arm/psci.h b/xen/include/asm-arm/psci.h
index fdba636..67d4c35 100644
--- a/xen/include/asm-arm/psci.h
+++ b/xen/include/asm-arm/psci.h
@@ -6,11 +6,6 @@
#define PSCI_EINVAL -2
#define PSCI_DENIED -3
-#define __PSCI_cpu_suspend 0
-#define __PSCI_cpu_off 1
-#define __PSCI_cpu_on 2
-#define __PSCI_migrate 3
-
int do_psci_cpu_on(uint32_t vcpuid, register_t entry_point);
int do_psci_cpu_off(uint32_t power_state);
int do_psci_cpu_suspend(uint32_t power_state, register_t entry_point);
diff --git a/xen/include/public/arch-arm.h b/xen/include/public/arch-arm.h
index 1e8aeda..cb41ddc 100644
--- a/xen/include/public/arch-arm.h
+++ b/xen/include/public/arch-arm.h
@@ -302,8 +302,19 @@ typedef uint64_t xen_callback_t;
#endif
+#if defined(__XEN__) || defined(__XEN_TOOLS__)
+
/* PSR bits (CPSR, SPSR)*/
+#define PSR_THUMB (1<<5) /* Thumb Mode enable */
+#define PSR_FIQ_MASK (1<<6) /* Fast Interrupt mask */
+#define PSR_IRQ_MASK (1<<7) /* Interrupt mask */
+#define PSR_ABT_MASK (1<<8) /* Asynchronous Abort mask */
+#define PSR_BIG_ENDIAN (1<<9) /* arm32: Big Endian Mode */
+#define PSR_DBG_MASK (1<<9) /* arm64: Debug Exception mask */
+#define PSR_IT_MASK (0x0600fc00) /* Thumb If-Then Mask */
+#define PSR_JAZELLE (1<<24) /* Jazelle Mode */
+
/* 32 bit modes */
#define PSR_MODE_USR 0x10
#define PSR_MODE_FIQ 0x11
@@ -316,7 +327,6 @@ typedef uint64_t xen_callback_t;
#define PSR_MODE_SYS 0x1f
/* 64 bit modes */
-#ifdef __aarch64__
#define PSR_MODE_BIT 0x10 /* Set iff AArch32 */
#define PSR_MODE_EL3h 0x0d
#define PSR_MODE_EL3t 0x0c
@@ -325,18 +335,44 @@ typedef uint64_t xen_callback_t;
#define PSR_MODE_EL1h 0x05
#define PSR_MODE_EL1t 0x04
#define PSR_MODE_EL0t 0x00
-#endif
-#define PSR_THUMB (1<<5) /* Thumb Mode enable */
-#define PSR_FIQ_MASK (1<<6) /* Fast Interrupt mask */
-#define PSR_IRQ_MASK (1<<7) /* Interrupt mask */
-#define PSR_ABT_MASK (1<<8) /* Asynchronous Abort mask */
-#define PSR_BIG_ENDIAN (1<<9) /* Big Endian Mode */
-#ifdef __aarch64__ /* For Aarch64 bit 9 is repurposed. */
-#define PSR_DBG_MASK (1<<9)
+#define PSR_GUEST32_INIT (PSR_ABT_MASK|PSR_FIQ_MASK|PSR_IRQ_MASK|PSR_MODE_SVC)
+#define PSR_GUEST64_INIT (PSR_ABT_MASK|PSR_FIQ_MASK|PSR_IRQ_MASK|PSR_MODE_EL1h)
+
+#define SCTLR_GUEST_INIT 0x00c50078
+
+/*
+ * Virtual machine platform (memory layout, interrupts)
+ *
+ * These are defined for consistency between the tools and the
+ * hypervisor. Guests must not rely on these hardcoded values but
+ * should instead use the FDT.
+ */
+
+/* Physical Address Space */
+#define GUEST_GICD_BASE 0x2c001000ULL
+#define GUEST_GICD_SIZE 0x1000ULL
+#define GUEST_GICC_BASE 0x2c002000ULL
+#define GUEST_GICC_SIZE 0x100ULL
+
+#define GUEST_RAM_BASE 0x80000000ULL
+
+#define GUEST_GNTTAB_BASE 0xb0000000ULL
+#define GUEST_GNTTAB_SIZE 0x00020000ULL
+
+/* Interrupts */
+#define GUEST_TIMER_VIRT_PPI 27
+#define GUEST_TIMER_PHYS_S_PPI 29
+#define GUEST_TIMER_PHYS_NS_PPI 30
+#define GUEST_EVTCHN_PPI 31
+
+/* PSCI functions */
+#define PSCI_cpu_suspend 0
+#define PSCI_cpu_off 1
+#define PSCI_cpu_on 2
+#define PSCI_migrate 3
+
#endif
-#define PSR_IT_MASK (0x0600fc00) /* Thumb If-Then Mask */
-#define PSR_JAZELLE (1<<24) /* Jazelle Mode */
#endif /* __XEN_PUBLIC_ARCH_ARM_H__ */
--
1.7.10.4
Ian Campbell
2013-Nov-12 17:39 UTC
[PATCH v4 11/17] libxc: arm: rename various bits of zimage load with 32 suffix
Making room for a 64 bit implementation.
Also fix a typo and stop refering to it as a bzImage, which is an x86-ism.
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Acked-by: Julien Grall <julien.grall@linaro.org>
---
tools/libxc/xc_dom_armzimageloader.c | 44 ++++++++++++++++++++--------------
1 file changed, 26 insertions(+), 18 deletions(-)
diff --git a/tools/libxc/xc_dom_armzimageloader.c
b/tools/libxc/xc_dom_armzimageloader.c
index 54728b8..b693390 100644
--- a/tools/libxc/xc_dom_armzimageloader.c
+++ b/tools/libxc/xc_dom_armzimageloader.c
@@ -36,12 +36,6 @@
*/
#define GUEST_RAM_BASE 0x80000000
-#define ZIMAGE_MAGIC_OFFSET 0x24
-#define ZIMAGE_START_OFFSET 0x28
-#define ZIMAGE_END_OFFSET 0x2c
-
-#define ZIMAGE_MAGIC 0x016f2818
-
struct minimal_dtb_header {
uint32_t magic;
uint32_t total_size;
@@ -50,7 +44,17 @@ struct minimal_dtb_header {
#define DTB_MAGIC 0xd00dfeed
-static int xc_dom_probe_zimage_kernel(struct xc_dom_image *dom)
+/* ------------------------------------------------------------ */
+/* 32-bit zImage Support */
+/* ------------------------------------------------------------ */
+
+#define ZIMAGE32_MAGIC_OFFSET 0x24
+#define ZIMAGE32_START_OFFSET 0x28
+#define ZIMAGE32_END_OFFSET 0x2c
+
+#define ZIMAGE32_MAGIC 0x016f2818
+
+static int xc_dom_probe_zimage32_kernel(struct xc_dom_image *dom)
{
uint32_t *zimage;
uint32_t end;
@@ -69,13 +73,13 @@ static int xc_dom_probe_zimage_kernel(struct xc_dom_image
*dom)
}
zimage = (uint32_t *)dom->kernel_blob;
- if ( zimage[ZIMAGE_MAGIC_OFFSET/4] != ZIMAGE_MAGIC )
+ if ( zimage[ZIMAGE32_MAGIC_OFFSET/4] != ZIMAGE32_MAGIC )
{
- xc_dom_printf(dom->xch, "%s: kernel is not a bzImage",
__FUNCTION__);
+ xc_dom_printf(dom->xch, "%s: kernel is not an arm32
zImage", __FUNCTION__);
return -EINVAL;
}
- end = zimage[ZIMAGE_END_OFFSET/4];
+ end = zimage[ZIMAGE32_END_OFFSET/4];
/*
* Check for an appended DTB.
@@ -94,7 +98,7 @@ static int xc_dom_probe_zimage_kernel(struct xc_dom_image
*dom)
return 0;
}
-static int xc_dom_parse_zimage_kernel(struct xc_dom_image *dom)
+static int xc_dom_parse_zimage32_kernel(struct xc_dom_image *dom)
{
uint32_t *zimage;
uint32_t start, entry_addr;
@@ -111,7 +115,7 @@ static int xc_dom_parse_zimage_kernel(struct xc_dom_image
*dom)
v_start = rambase + 0x8000;
v_end = v_start + dom->kernel_size;
- start = zimage[ZIMAGE_START_OFFSET/4];
+ start = zimage[ZIMAGE32_START_OFFSET/4];
if (start == 0)
entry_addr = v_start;
@@ -134,6 +138,10 @@ static int xc_dom_parse_zimage_kernel(struct xc_dom_image
*dom)
return 0;
}
+/* ------------------------------------------------------------ */
+/* Common zImage Support */
+/* ------------------------------------------------------------ */
+
static int xc_dom_load_zimage_kernel(struct xc_dom_image *dom)
{
void *dst;
@@ -148,7 +156,7 @@ static int xc_dom_load_zimage_kernel(struct xc_dom_image
*dom)
return -1;
}
- DOMPRINTF("%s: kernel sed %#"PRIx64"-%#"PRIx64,
+ DOMPRINTF("%s: kernel seg %#"PRIx64"-%#"PRIx64,
__func__, dom->kernel_seg.vstart, dom->kernel_seg.vend);
DOMPRINTF("%s: copy %zd bytes from blob %p to dst %p",
__func__, dom->kernel_size, dom->kernel_blob, dst);
@@ -158,16 +166,16 @@ static int xc_dom_load_zimage_kernel(struct xc_dom_image
*dom)
return 0;
}
-static struct xc_dom_loader zimage_loader = {
- .name = "Linux zImage (ARM)",
- .probe = xc_dom_probe_zimage_kernel,
- .parser = xc_dom_parse_zimage_kernel,
+static struct xc_dom_loader zimage32_loader = {
+ .name = "Linux zImage (ARM32)",
+ .probe = xc_dom_probe_zimage32_kernel,
+ .parser = xc_dom_parse_zimage32_kernel,
.loader = xc_dom_load_zimage_kernel,
};
static void __init register_loader(void)
{
- xc_dom_register_loader(&zimage_loader);
+ xc_dom_register_loader(&zimage32_loader);
}
/*
--
1.7.10.4
Ian Campbell
2013-Nov-12 17:39 UTC
[PATCH v4 12/17] libxc: allow caller to specify guest rambase rather than hardcoding
It''s still hardcoded but it could now be plausibly be made variable.
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Acked-by: Ian Jackson <ian.jackson@eu.citrix.com>
---
tools/libxc/xc_dom.h | 1 +
tools/libxc/xc_dom_armzimageloader.c | 12 +-----------
tools/libxc/xc_dom_core.c | 8 ++++++++
tools/libxl/libxl_dom.c | 6 ++++++
4 files changed, 16 insertions(+), 11 deletions(-)
diff --git a/tools/libxc/xc_dom.h b/tools/libxc/xc_dom.h
index 86e23ee..ed49aa7 100644
--- a/tools/libxc/xc_dom.h
+++ b/tools/libxc/xc_dom.h
@@ -197,6 +197,7 @@ struct xc_dom_image *xc_dom_allocate(xc_interface *xch,
const char *cmdline, const char
*features);
void xc_dom_release_phys(struct xc_dom_image *dom);
void xc_dom_release(struct xc_dom_image *dom);
+int xc_dom_rambase_init(struct xc_dom_image *dom, uint64_t rambase);
int xc_dom_mem_init(struct xc_dom_image *dom, unsigned int mem_mb);
/* Set this larger if you have enormous ramdisks/kernels. Note that
diff --git a/tools/libxc/xc_dom_armzimageloader.c
b/tools/libxc/xc_dom_armzimageloader.c
index b693390..4e3f7ae 100644
--- a/tools/libxc/xc_dom_armzimageloader.c
+++ b/tools/libxc/xc_dom_armzimageloader.c
@@ -30,12 +30,6 @@
#include <arpa/inet.h> /* XXX ntohl is not the right function... */
-/*
- * Guest virtual RAM starts here. This must be consistent with the DTB
- * appended to the guest kernel.
- */
-#define GUEST_RAM_BASE 0x80000000
-
struct minimal_dtb_header {
uint32_t magic;
uint32_t total_size;
@@ -103,14 +97,12 @@ static int xc_dom_parse_zimage32_kernel(struct xc_dom_image
*dom)
uint32_t *zimage;
uint32_t start, entry_addr;
uint64_t v_start, v_end;
- uint64_t rambase = GUEST_RAM_BASE;
+ uint64_t rambase = dom->rambase_pfn << XC_PAGE_SHIFT;
DOMPRINTF_CALLED(dom->xch);
zimage = (uint32_t *)dom->kernel_blob;
- dom->rambase_pfn = rambase >> XC_PAGE_SHIFT;
-
/* Do not load kernel at the very first RAM address */
v_start = rambase + 0x8000;
v_end = v_start + dom->kernel_size;
@@ -130,8 +122,6 @@ static int xc_dom_parse_zimage32_kernel(struct xc_dom_image
*dom)
dom->parms.virt_base = rambase;
dom->guest_type = "xen-3.0-armv7l";
- DOMPRINTF("%s: %s: RAM starts at %"PRI_xen_pfn,
- __FUNCTION__, dom->guest_type, dom->rambase_pfn);
DOMPRINTF("%s: %s: 0x%" PRIx64 " -> 0x%" PRIx64
"",
__FUNCTION__, dom->guest_type,
dom->kernel_seg.vstart, dom->kernel_seg.vend);
diff --git a/tools/libxc/xc_dom_core.c b/tools/libxc/xc_dom_core.c
index 3bf51ef..6aa0176 100644
--- a/tools/libxc/xc_dom_core.c
+++ b/tools/libxc/xc_dom_core.c
@@ -785,6 +785,14 @@ int xc_dom_parse_image(struct xc_dom_image *dom)
return -1;
}
+int xc_dom_rambase_init(struct xc_dom_image *dom, uint64_t rambase)
+{
+ dom->rambase_pfn = rambase >> XC_PAGE_SHIFT;
+ DOMPRINTF("%s: RAM starts at %"PRI_xen_pfn,
+ __FUNCTION__, dom->rambase_pfn);
+ return 0;
+}
+
int xc_dom_mem_init(struct xc_dom_image *dom, unsigned int mem_mb)
{
unsigned int page_shift;
diff --git a/tools/libxl/libxl_dom.c b/tools/libxl/libxl_dom.c
index 1812bdc..10f976c 100644
--- a/tools/libxl/libxl_dom.c
+++ b/tools/libxl/libxl_dom.c
@@ -390,6 +390,12 @@ int libxl__build_pv(libxl__gc *gc, uint32_t domid,
LOGE(ERROR, "xc_dom_boot_xen_init failed");
goto out;
}
+#ifdef GUEST_RAM_BASE
+ if ( (ret = xc_dom_rambase_init(dom, GUEST_RAM_BASE)) != 0 ) {
+ LOGE(ERROR, "xc_dom_rambase failed");
+ goto out;
+ }
+#endif
if ( (ret = xc_dom_parse_image(dom)) != 0 ) {
LOGE(ERROR, "xc_dom_parse_image failed");
goto out;
--
1.7.10.4
Ian Campbell
2013-Nov-12 17:39 UTC
[PATCH v4 13/17] libxc: arm: allow passing a device tree blob to the guest
Placement of the blob in guest RAM is simplistic but will do for now.
This operation is only supported on ARM.
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Cc: Ian Jackson <ian.jackson@eu.citrix.com>
---
v4: Return EINVAL on non-ARM platforms (which do not support device-tree)
Slightly less rubbish DTB placement which isn''t perfect but at
least now
doesn''t fail with <128MB of RAM.
---
tools/libxc/xc_dom.h | 8 +++++++
tools/libxc/xc_dom_arm.c | 22 ++++++++++++++++++-
tools/libxc/xc_dom_core.c | 53 +++++++++++++++++++++++++++++++++++++++++++++
3 files changed, 82 insertions(+), 1 deletion(-)
diff --git a/tools/libxc/xc_dom.h b/tools/libxc/xc_dom.h
index ed49aa7..bf56436 100644
--- a/tools/libxc/xc_dom.h
+++ b/tools/libxc/xc_dom.h
@@ -54,9 +54,12 @@ struct xc_dom_image {
size_t kernel_size;
void *ramdisk_blob;
size_t ramdisk_size;
+ void *devicetree_blob;
+ size_t devicetree_size;
size_t max_kernel_size;
size_t max_ramdisk_size;
+ size_t max_devicetree_size;
/* arguments and parameters */
char *cmdline;
@@ -217,6 +220,8 @@ int xc_dom_kernel_max_size(struct xc_dom_image *dom, size_t
sz);
int xc_dom_ramdisk_check_size(struct xc_dom_image *dom, size_t sz);
int xc_dom_ramdisk_max_size(struct xc_dom_image *dom, size_t sz);
+int xc_dom_devicetree_max_size(struct xc_dom_image *dom, size_t sz);
+
size_t xc_dom_check_gzip(xc_interface *xch,
void *blob, size_t ziplen);
int xc_dom_do_gunzip(xc_interface *xch,
@@ -229,6 +234,9 @@ int xc_dom_kernel_mem(struct xc_dom_image *dom, const void
*mem,
size_t memsize);
int xc_dom_ramdisk_mem(struct xc_dom_image *dom, const void *mem,
size_t memsize);
+int xc_dom_devicetree_file(struct xc_dom_image *dom, const char *filename);
+int xc_dom_devicetree_mem(struct xc_dom_image *dom, const void *mem,
+ size_t memsize);
int xc_dom_parse_image(struct xc_dom_image *dom);
struct xc_dom_arch *xc_dom_find_arch_hooks(xc_interface *xch, char
*guest_type);
diff --git a/tools/libxc/xc_dom_arm.c b/tools/libxc/xc_dom_arm.c
index 9f3fdd3..4c59177 100644
--- a/tools/libxc/xc_dom_arm.c
+++ b/tools/libxc/xc_dom_arm.c
@@ -124,7 +124,8 @@ static int vcpu_arm(struct xc_dom_image *dom, void *ptr)
* using CONFIG_ARM_APPENDED_DTB. Ensure that r2 does not look
* like a valid pointer to a set of ATAGS or a DTB.
*/
- ctxt->user_regs.r2_usr = 0xffffffff;
+ ctxt->user_regs.r2_usr = dom->devicetree_blob ?
+ dom->devicetree_seg.vstart : 0xffffffff;
ctxt->sctlr = SCTLR_GUEST_INIT;
@@ -191,6 +192,25 @@ int arch_setup_meminit(struct xc_dom_image *dom)
0, 0, &dom->p2m_host[i]);
}
+ if ( dom->devicetree_blob )
+ {
+ const uint64_t rambase = dom->rambase_pfn << XC_PAGE_SHIFT;
+ const uint64_t ramend = rambase + ( dom->total_pages <<
XC_PAGE_SHIFT );
+ const uint64_t dtbsize = ( dom->devicetree_size + 3 ) & ~0x3;
+
+ /* Place at 128MB if there is sufficient RAM */
+ if (ramend >= rambase + 128*1024*1024 + dtbsize )
+ dom->devicetree_seg.vstart = rambase + 128*1024*1024;
+ else /* otherwise at top of RAM */
+ dom->devicetree_seg.vstart = ramend - dtbsize;
+
+ dom->devicetree_seg.vend + dom->devicetree_seg.vstart
+ dom->devicetree_size;
+ DOMPRINTF("%s: devicetree: 0x%" PRIx64 " -> 0x%"
PRIx64 "",
+ __FUNCTION__,
+ dom->devicetree_seg.vstart, dom->devicetree_seg.vend);
+ }
+
return 0;
}
diff --git a/tools/libxc/xc_dom_core.c b/tools/libxc/xc_dom_core.c
index 6aa0176..4bd37cc 100644
--- a/tools/libxc/xc_dom_core.c
+++ b/tools/libxc/xc_dom_core.c
@@ -671,6 +671,7 @@ struct xc_dom_image *xc_dom_allocate(xc_interface *xch,
dom->max_kernel_size = XC_DOM_DECOMPRESS_MAX;
dom->max_ramdisk_size = XC_DOM_DECOMPRESS_MAX;
+ dom->max_devicetree_size = XC_DOM_DECOMPRESS_MAX;
if ( cmdline )
dom->cmdline = xc_dom_strdup(dom, cmdline);
@@ -706,6 +707,13 @@ int xc_dom_ramdisk_max_size(struct xc_dom_image *dom,
size_t sz)
return 0;
}
+int xc_dom_devicetree_max_size(struct xc_dom_image *dom, size_t sz)
+{
+ DOMPRINTF("%s: devicetree_max_size=%zx", __FUNCTION__, sz);
+ dom->max_devicetree_size = sz;
+ return 0;
+}
+
int xc_dom_kernel_file(struct xc_dom_image *dom, const char *filename)
{
DOMPRINTF("%s: filename=\"%s\"", __FUNCTION__,
filename);
@@ -729,6 +737,23 @@ int xc_dom_ramdisk_file(struct xc_dom_image *dom, const
char *filename)
return 0;
}
+int xc_dom_devicetree_file(struct xc_dom_image *dom, const char *filename)
+{
+#if defined (__arm__) || defined(__aarch64__)
+ DOMPRINTF("%s: filename=\"%s\"", __FUNCTION__,
filename);
+ dom->devicetree_blob + xc_dom_malloc_filemap(dom, filename,
&dom->devicetree_size,
+ dom->max_devicetree_size);
+
+ if ( dom->devicetree_blob == NULL )
+ return -1;
+ return 0;
+#else
+ errno = -EINVAL;
+ return -1;
+#endif
+}
+
int xc_dom_kernel_mem(struct xc_dom_image *dom, const void *mem, size_t
memsize)
{
DOMPRINTF_CALLED(dom->xch);
@@ -747,6 +772,15 @@ int xc_dom_ramdisk_mem(struct xc_dom_image *dom, const void
*mem,
return 0;
}
+int xc_dom_devicetree_mem(struct xc_dom_image *dom, const void *mem,
+ size_t memsize)
+{
+ DOMPRINTF_CALLED(dom->xch);
+ dom->devicetree_blob = (void *)mem;
+ dom->devicetree_size = memsize;
+ return 0;
+}
+
int xc_dom_parse_image(struct xc_dom_image *dom)
{
int i;
@@ -916,6 +950,25 @@ int xc_dom_build_image(struct xc_dom_image *dom)
memcpy(ramdiskmap, dom->ramdisk_blob, dom->ramdisk_size);
}
+ /* load devicetree */
+ if ( dom->devicetree_blob )
+ {
+ void *devicetreemap;
+
+ if ( xc_dom_alloc_segment(dom, &dom->devicetree_seg,
"devicetree",
+ dom->devicetree_seg.vstart,
+ dom->devicetree_size) != 0 )
+ goto err;
+ devicetreemap = xc_dom_seg_to_ptr(dom, &dom->devicetree_seg);
+ if ( devicetreemap == NULL )
+ {
+ DOMPRINTF("%s: xc_dom_seg_to_ptr(dom,
&dom->devicetree_seg) => NULL",
+ __FUNCTION__);
+ goto err;
+ }
+ memcpy(devicetreemap, dom->devicetree_blob,
dom->devicetree_size);
+ }
+
/* allocate other pages */
if ( dom->arch_hooks->alloc_magic_pages(dom) != 0 )
goto err;
--
1.7.10.4
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
---
v4: actually use v_end and drop unused entry_addr
---
tools/libxc/xc_dom_armzimageloader.c | 85 ++++++++++++++++++++++++++++++++++
1 file changed, 85 insertions(+)
diff --git a/tools/libxc/xc_dom_armzimageloader.c
b/tools/libxc/xc_dom_armzimageloader.c
index 4e3f7ae..e6516a1 100644
--- a/tools/libxc/xc_dom_armzimageloader.c
+++ b/tools/libxc/xc_dom_armzimageloader.c
@@ -129,6 +129,83 @@ static int xc_dom_parse_zimage32_kernel(struct xc_dom_image
*dom)
}
/* ------------------------------------------------------------ */
+/* 64-bit zImage Support */
+/* ------------------------------------------------------------ */
+
+#define ZIMAGE64_MAGIC_V0 0x14000008
+#define ZIMAGE64_MAGIC_V1 0x644d5241 /* "ARM\x64" */
+
+/* linux/Documentation/arm64/booting.txt */
+struct zimage64_hdr {
+ uint32_t magic0;
+ uint32_t res0;
+ uint64_t text_offset; /* Image load offset */
+ uint64_t res1;
+ uint64_t res2;
+ /* zImage V1 only from here */
+ uint64_t res3;
+ uint64_t res4;
+ uint64_t res5;
+ uint32_t magic1;
+ uint32_t res6;
+};
+static int xc_dom_probe_zimage64_kernel(struct xc_dom_image *dom)
+{
+ struct zimage64_hdr *zimage;
+
+ if ( dom->kernel_blob == NULL )
+ {
+ xc_dom_panic(dom->xch, XC_INTERNAL_ERROR,
+ "%s: no kernel image loaded", __FUNCTION__);
+ return -EINVAL;
+ }
+
+ if ( dom->kernel_size < sizeof(*zimage) )
+ {
+ xc_dom_printf(dom->xch, "%s: kernel image too small",
__FUNCTION__);
+ return -EINVAL;
+ }
+
+ zimage = dom->kernel_blob;
+ if ( zimage->magic0 != ZIMAGE64_MAGIC_V0 &&
+ zimage->magic1 != ZIMAGE64_MAGIC_V1 )
+ {
+ xc_dom_printf(dom->xch, "%s: kernel is not an arm64
Image", __FUNCTION__);
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int xc_dom_parse_zimage64_kernel(struct xc_dom_image *dom)
+{
+ struct zimage64_hdr *zimage;
+ uint64_t v_start, v_end;
+ uint64_t rambase = dom->rambase_pfn << XC_PAGE_SHIFT;
+
+ DOMPRINTF_CALLED(dom->xch);
+
+ zimage = dom->kernel_blob;
+
+ v_start = rambase + zimage->text_offset;
+ v_end = v_start + dom->kernel_size;
+
+ dom->kernel_seg.vstart = v_start;
+ dom->kernel_seg.vend = v_end;
+
+ /* Call the kernel at offset 0 */
+ dom->parms.virt_entry = v_start;
+ dom->parms.virt_base = rambase;
+
+ dom->guest_type = "xen-3.0-aarch64";
+ DOMPRINTF("%s: %s: 0x%" PRIx64 " -> 0x%" PRIx64
"",
+ __FUNCTION__, dom->guest_type,
+ dom->kernel_seg.vstart, dom->kernel_seg.vend);
+
+ return 0;
+}
+
+/* ------------------------------------------------------------ */
/* Common zImage Support */
/* ------------------------------------------------------------ */
@@ -163,9 +240,17 @@ static struct xc_dom_loader zimage32_loader = {
.loader = xc_dom_load_zimage_kernel,
};
+static struct xc_dom_loader zimage64_loader = {
+ .name = "Linux zImage (ARM64)",
+ .probe = xc_dom_probe_zimage64_kernel,
+ .parser = xc_dom_parse_zimage64_kernel,
+ .loader = xc_dom_load_zimage_kernel,
+};
+
static void __init register_loader(void)
{
xc_dom_register_loader(&zimage32_loader);
+ xc_dom_register_loader(&zimage64_loader);
}
/*
--
1.7.10.4
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Acked-by: Ian Jackson <ian.jackson@eu.citrix.com>
Acked-by: Julien Grall <julien.grall@linaro.org>
---
tools/libxc/xc_dom_arm.c | 90 ++++++++++++++++++++++++++++++++++++++++++++--
1 file changed, 88 insertions(+), 2 deletions(-)
diff --git a/tools/libxc/xc_dom_arm.c b/tools/libxc/xc_dom_arm.c
index 4c59177..a5ff01d 100644
--- a/tools/libxc/xc_dom_arm.c
+++ b/tools/libxc/xc_dom_arm.c
@@ -105,7 +105,7 @@ static int shared_info_arm(struct xc_dom_image *dom, void
*ptr)
/* ------------------------------------------------------------------------ */
-static int vcpu_arm(struct xc_dom_image *dom, void *ptr)
+static int vcpu_arm32(struct xc_dom_image *dom, void *ptr)
{
vcpu_guest_context_t *ctxt = ptr;
@@ -143,6 +143,41 @@ static int vcpu_arm(struct xc_dom_image *dom, void *ptr)
return 0;
}
+static int vcpu_arm64(struct xc_dom_image *dom, void *ptr)
+{
+ vcpu_guest_context_t *ctxt = ptr;
+
+ DOMPRINTF_CALLED(dom->xch);
+ /* clear everything */
+ memset(ctxt, 0, sizeof(*ctxt));
+
+ ctxt->user_regs.pc64 = dom->parms.virt_entry;
+
+ /* Linux boot protocol. See linux.Documentation/arm64/booting.txt. */
+ ctxt->user_regs.x0 = dom->devicetree_blob ?
+ dom->devicetree_seg.vstart : 0xffffffff;
+ ctxt->user_regs.x1 = 0;
+ ctxt->user_regs.x2 = 0;
+ ctxt->user_regs.x3 = 0;
+
+ DOMPRINTF("DTB %"PRIx64, ctxt->user_regs.x0);
+
+ ctxt->sctlr = SCTLR_GUEST_INIT;
+
+ ctxt->ttbr0 = 0;
+ ctxt->ttbr1 = 0;
+ ctxt->ttbcr = 0; /* Defined Reset Value */
+
+ ctxt->user_regs.cpsr = PSR_GUEST64_INIT;
+
+ ctxt->flags = VGCF_online;
+
+ DOMPRINTF("Initial state CPSR %#"PRIx32" PC %#"PRIx64,
+ ctxt->user_regs.cpsr, ctxt->user_regs.pc64);
+
+ return 0;
+}
+
/* ------------------------------------------------------------------------ */
static struct xc_dom_arch xc_dom_32 = {
@@ -155,12 +190,59 @@ static struct xc_dom_arch xc_dom_32 = {
.setup_pgtables = setup_pgtables_arm,
.start_info = start_info_arm,
.shared_info = shared_info_arm,
- .vcpu = vcpu_arm,
+ .vcpu = vcpu_arm32,
+};
+
+static struct xc_dom_arch xc_dom_64 = {
+ .guest_type = "xen-3.0-aarch64",
+ .native_protocol = XEN_IO_PROTO_ABI_ARM,
+ .page_shift = PAGE_SHIFT_ARM,
+ .sizeof_pfn = 8,
+ .alloc_magic_pages = alloc_magic_pages,
+ .count_pgtables = count_pgtables_arm,
+ .setup_pgtables = setup_pgtables_arm,
+ .start_info = start_info_arm,
+ .shared_info = shared_info_arm,
+ .vcpu = vcpu_arm64,
};
static void __init register_arch_hooks(void)
{
xc_dom_register_arch_hooks(&xc_dom_32);
+ xc_dom_register_arch_hooks(&xc_dom_64);
+}
+
+static int set_mode(xc_interface *xch, domid_t domid, char *guest_type)
+{
+ static const struct {
+ char *guest;
+ uint32_t size;
+ } types[] = {
+ { "xen-3.0-aarch64", 64 },
+ { "xen-3.0-armv7l", 32 },
+ };
+ DECLARE_DOMCTL;
+ int i,rc;
+
+ domctl.domain = domid;
+ domctl.cmd = XEN_DOMCTL_set_address_size;
+ for ( i = 0; i < sizeof(types)/sizeof(types[0]); i++ )
+ if ( !strcmp(types[i].guest, guest_type) )
+ domctl.u.address_size.size = types[i].size;
+ if ( domctl.u.address_size.size == 0 )
+ {
+ xc_dom_printf(xch, "%s: warning: unknown guest type %s",
+ __FUNCTION__, guest_type);
+ return -EINVAL;
+ }
+
+ xc_dom_printf(xch, "%s: guest %s, address size %" PRId32
"", __FUNCTION__,
+ guest_type, domctl.u.address_size.size);
+ rc = do_domctl(xch, &domctl);
+ if ( rc != 0 )
+ xc_dom_printf(xch, "%s: warning: failed (rc=%d)",
+ __FUNCTION__, rc);
+ return rc;
}
int arch_setup_meminit(struct xc_dom_image *dom)
@@ -168,6 +250,10 @@ int arch_setup_meminit(struct xc_dom_image *dom)
int rc;
xen_pfn_t pfn, allocsz, i;
+ rc = set_mode(dom->xch, dom->guest_domid, dom->guest_type);
+ if ( rc )
+ return rc;
+
dom->shadow_enabled = 1;
dom->p2m_host = xc_dom_malloc(dom, sizeof(xen_pfn_t) *
dom->total_pages);
--
1.7.10.4
Ian Campbell
2013-Nov-12 17:39 UTC
[PATCH v4 16/17] libxl: build a device tree for ARM guests
Uses xc_dom_devicetree_mem which was just added. The call to this needs to be
carefully sequenced to be after xc_dom_parse_image (so we can tell which kind
of guest we are building, although we don''t use this yet) and before
xc_dom_mem_init which tries to decide where to place the FDT in guest RAM.
Removes libxl_noarch which would only have been used by IA64 after this
change. Remove IA64 as part of this patch.
There is no attempt to expose this as a configuration setting for the user.
Includes a debug hook to dump the dtb to a file for inspection.
TODO:
- v7 CPU compat is hardcoded to cortex-a15 -- may need to define something more
generic via mach-virt dt bindngs?
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Cc: Ian Jackson <ian.jackson@eu.citrix.com>
---
v4: Drop spurious comment in header
s/__be32/be32/ and s/gic_interrupt_t/gic_interrupt/ to avoid reserved names
Coding style fixes
Use GCSPRINTF
use for(;;) around FDT creation loop, undef FDT when done
use libxl__realloc for fdt size increase
Refactor debug dump into its own function, remove NDEBUG ifdef
v2: base addresses, irq, evtchn etc stuff is now from public API headers,
avoiding the need to introduce domctls etc until we want to make them
dynamic.
fix memory node
Improve libfdt error handling, especially for FDT_ERR_NOSPACE.
Derive guest CPU and timer compatiblity nodes from the guest type.
---
tools/libxl/Makefile | 6 +-
tools/libxl/libxl_arch.h | 3 +
tools/libxl/libxl_arm.c | 516 ++++++++++++++++++++++++++++++++++++++++++++
tools/libxl/libxl_dom.c | 4 +
tools/libxl/libxl_noarch.c | 8 -
tools/libxl/libxl_x86.c | 7 +
6 files changed, 534 insertions(+), 10 deletions(-)
create mode 100644 tools/libxl/libxl_arm.c
delete mode 100644 tools/libxl/libxl_noarch.c
diff --git a/tools/libxl/Makefile b/tools/libxl/Makefile
index cf214bb..d8495bb 100644
--- a/tools/libxl/Makefile
+++ b/tools/libxl/Makefile
@@ -28,9 +28,12 @@ CFLAGS_LIBXL += $(CFLAGS_libxenstore)
CFLAGS_LIBXL += $(CFLAGS_libblktapctl)
CFLAGS_LIBXL += -Wshadow
+LIBXL_LIBS-$(CONFIG_ARM) += -lfdt
+
CFLAGS += $(PTHREAD_CFLAGS)
LDFLAGS += $(PTHREAD_LDFLAGS)
LIBXL_LIBS += $(PTHREAD_LIBS)
+LIBXL_LIBS += $(LIBXL_LIBS-y)
LIBXLU_LIBS
@@ -41,8 +44,7 @@ else
LIBXL_OBJS-y += libxl_noblktap2.o
endif
LIBXL_OBJS-$(CONFIG_X86) += libxl_cpuid.o libxl_x86.o
-LIBXL_OBJS-$(CONFIG_IA64) += libxl_nocpuid.o libxl_noarch.o
-LIBXL_OBJS-$(CONFIG_ARM) += libxl_nocpuid.o libxl_noarch.o
+LIBXL_OBJS-$(CONFIG_ARM) += libxl_nocpuid.o libxl_arm.o
ifeq ($(CONFIG_NetBSD),y)
LIBXL_OBJS-y += libxl_netbsd.o
diff --git a/tools/libxl/libxl_arch.h b/tools/libxl/libxl_arch.h
index abe6685..aee0a91 100644
--- a/tools/libxl/libxl_arch.h
+++ b/tools/libxl/libxl_arch.h
@@ -19,4 +19,7 @@
int libxl__arch_domain_create(libxl__gc *gc, libxl_domain_config *d_config,
uint32_t domid);
+int libxl__arch_domain_configure(libxl__gc *gc,
+ libxl_domain_build_info *info,
+ struct xc_dom_image *dom);
#endif
diff --git a/tools/libxl/libxl_arm.c b/tools/libxl/libxl_arm.c
new file mode 100644
index 0000000..9fe9a81
--- /dev/null
+++ b/tools/libxl/libxl_arm.c
@@ -0,0 +1,516 @@
+#include "libxl_internal.h"
+#include "libxl_arch.h"
+
+#include <xc_dom.h>
+#include <libfdt.h>
+#include <assert.h>
+
+int libxl__arch_domain_create(libxl__gc *gc, libxl_domain_config *d_config,
+ uint32_t domid)
+{
+ return 0;
+}
+
+static struct arch_info {
+ const char *guest_type;
+ const char *timer_compat;
+ const char *cpu_compat;
+} arch_info[] = {
+ {"xen-3.0-armv7l", "arm,armv7-timer",
"arm,cortex-a15" },
+ {"xen-3.0-aarch64", "arm,armv8-timer",
"arm,armv8" },
+};
+
+enum {
+ PHANDLE_NONE = 0,
+ PHANDLE_GIC,
+};
+
+typedef uint32_t be32;
+typedef be32 gic_interrupt[3];
+
+#define ROOT_ADDRESS_CELLS 2
+#define ROOT_SIZE_CELLS 2
+
+static void set_cell(be32 **cellp, int size, uint64_t val)
+{
+ int cells = size;
+
+ while (size--) {
+ (*cellp)[size] = cpu_to_fdt32(val);
+ val >>= 32;
+ }
+
+ (*cellp) += cells;
+}
+
+static void set_interrupt_ppi(gic_interrupt interrupt, unsigned int irq,
+ unsigned int cpumask, unsigned int level)
+{
+ be32 *cells = interrupt;
+
+ /* See linux Documentation/devictree/bindings/arm/gic.txt */
+ set_cell(&cells, 1, 1); /* is a PPI */
+ set_cell(&cells, 1, irq - 16); /* PPIs start at 16 */
+ set_cell(&cells, 1, (cpumask << 8) | level);
+}
+
+static void set_range(be32 **cellp,
+ int address_cells, int size_cells,
+ uint64_t address, uint64_t size)
+{
+ set_cell(cellp, address_cells, address);
+ set_cell(cellp, size_cells, size);
+}
+
+static int fdt_property_compat(libxl__gc *gc, void *fdt, unsigned nr_compat,
...)
+{
+ const char *compats[nr_compat];
+ int i;
+ size_t sz;
+ va_list ap;
+ char *compat, *p;
+
+ va_start(ap, nr_compat);
+ sz = 0;
+ for (i = 0; i < nr_compat; i++) {
+ const char *c = va_arg(ap, const char *);
+ compats[i] = c;
+ sz += strlen(compats[i]) + 1;
+ }
+ va_end(ap);
+
+ p = compat = libxl__zalloc(gc, sz);
+ for (i = 0; i < nr_compat; i++) {
+ strcpy(p, compats[i]);
+ p += strlen(compats[i]) + 1;
+ }
+
+ return fdt_property(fdt, "compatible", compat, sz);
+}
+
+static int fdt_property_interrupts(libxl__gc *gc, void *fdt,
+ gic_interrupt *intr,
+ unsigned num_irq)
+{
+ int res;
+
+ res = fdt_property(fdt, "interrupts", intr, sizeof (intr[0]) *
num_irq);
+ if (res) return res;
+
+ res = fdt_property_cell(fdt, "interrupt-parent", PHANDLE_GIC);
+ if (res) return res;
+
+ return 0;
+}
+
+static int fdt_property_regs(libxl__gc *gc, void *fdt,
+ unsigned addr_cells,
+ unsigned size_cells,
+ unsigned num_regs, ...)
+{
+ uint32_t regs[num_regs*(addr_cells+size_cells)];
+ be32 *cells = ®s[0];
+ int i;
+ va_list ap;
+ uint64_t base, size;
+
+ va_start(ap, num_regs);
+ for (i = 0 ; i < num_regs; i++) {
+ base = addr_cells ? va_arg(ap, uint64_t) : 0;
+ size = size_cells ? va_arg(ap, uint64_t) : 0;
+ set_range(&cells, addr_cells, size_cells, base, size);
+ }
+ va_end(ap);
+
+ return fdt_property(fdt, "reg", regs, sizeof(regs));
+}
+
+static int make_root_properties(libxl__gc *gc,
+ const libxl_version_info *vers,
+ void *fdt)
+{
+ int res;
+
+ res = fdt_property_string(fdt, "model",
GCSPRINTF("XENVM-%d.%d",
+
vers->xen_version_major,
+
vers->xen_version_minor));
+ if (res) return res;
+
+ res = fdt_property_compat(gc, fdt, 2,
+ GCSPRINTF("xen,xenvm-%d.%d",
+ vers->xen_version_major,
+ vers->xen_version_minor),
+ "xen,xenvm");
+ if (res) return res;
+
+ res = fdt_property_cell(fdt, "interrupt-parent", PHANDLE_GIC);
+ if (res) return res;
+
+ res = fdt_property_cell(fdt, "#address-cells",
ROOT_ADDRESS_CELLS);
+ if (res) return res;
+
+ res = fdt_property_cell(fdt, "#size-cells", ROOT_SIZE_CELLS);
+ if (res) return res;
+
+ return 0;
+}
+
+static int make_chosen_node(libxl__gc *gc, void *fdt,
+ const libxl_domain_build_info *info)
+{
+ int res;
+
+ /* See linux Documentation/devicetree/... */
+ res = fdt_begin_node(fdt, "chosen");
+ if (res) return res;
+
+ res = fdt_property_string(fdt, "bootargs",
info->u.pv.cmdline);
+ if (res) return res;
+
+ res = fdt_end_node(fdt);
+ if (res) return res;
+
+ return 0;
+}
+
+static int make_cpus_node(libxl__gc *gc, void *fdt, int nr_cpus,
+ const struct arch_info *ainfo)
+{
+ int res, i;
+
+ res = fdt_begin_node(fdt, "cpus");
+ if (res) return res;
+
+ res = fdt_property_cell(fdt, "#address-cells", 1);
+ if (res) return res;
+
+ res = fdt_property_cell(fdt, "#size-cells", 0);
+ if (res) return res;
+
+ for (i = 0; i < nr_cpus; i++) {
+ const char *name = GCSPRINTF("cpu@%d", i);
+
+ res = fdt_begin_node(fdt, name);
+ if (res) return res;
+
+ res = fdt_property_string(fdt, "device_type",
"cpu");
+ if (res) return res;
+
+ res = fdt_property_compat(gc, fdt, 1, ainfo->cpu_compat);
+ if (res) return res;
+
+ res = fdt_property_string(fdt, "enable-method",
"psci");
+ if (res) return res;
+
+ res = fdt_property_regs(gc, fdt, 1, 0, 1, (uint64_t)i);
+ if (res) return res;
+
+ res = fdt_end_node(fdt);
+ if (res) return res;
+ }
+
+ res = fdt_end_node(fdt);
+ if (res) return res;
+
+ return 0;
+}
+
+static int make_psci_node(libxl__gc *gc, void *fdt)
+{
+ int res;
+
+ res = fdt_begin_node(fdt, "psci");
+ if (res) return res;
+
+ res = fdt_property_compat(gc, fdt, 1, "arm,psci");
+ if (res) return res;
+
+ res = fdt_property_string(fdt, "method", "hvc");
+ if (res) return res;
+
+ res = fdt_property_cell(fdt, "cpu_off", PSCI_cpu_off);
+ if (res) return res;
+
+ res = fdt_property_cell(fdt, "cpu_on", PSCI_cpu_on);
+ if (res) return res;
+
+ res = fdt_end_node(fdt);
+ if (res) return res;
+
+ return 0;
+}
+
+static int make_memory_node(libxl__gc *gc, void *fdt,
+ unsigned long long base,
+ unsigned long long size)
+{
+ int res;
+ const char *name = GCSPRINTF("memory@%08llx", base);
+
+ res = fdt_begin_node(fdt, name);
+ if (res) return res;
+
+ res = fdt_property_string(fdt, "device_type",
"memory");
+ if (res) return res;
+
+ res = fdt_property_regs(gc, fdt, ROOT_ADDRESS_CELLS, ROOT_SIZE_CELLS,
+ 1, (uint64_t)base, (uint64_t)size);
+ if (res) return res;
+
+ res = fdt_end_node(fdt);
+ if (res) return res;
+
+ return 0;
+}
+
+static int make_intc_node(libxl__gc *gc, void *fdt,
+ unsigned long long gicd_base,
+ unsigned long long gicd_size,
+ unsigned long long gicc_base,
+ unsigned long long gicc_size)
+{
+ int res;
+ const char *name = GCSPRINTF("interrupt-controller@%08llx",
gicd_base);
+
+ res = fdt_begin_node(fdt, name);
+ if (res) return res;
+
+ res = fdt_property_compat(gc, fdt, 2,
+ "arm,cortex-a15-gic",
+ "arm,cortex-a9-gic");
+ if (res) return res;
+
+
+ res = fdt_property_cell(fdt, "#interrupt-cells", 3);
+ if (res) return res;
+
+ res = fdt_property_cell(fdt, "#address-cells", 0);
+ if (res) return res;
+
+ res = fdt_property(fdt, "interrupt-controller", NULL, 0);
+ if (res) return res;
+
+ res = fdt_property_regs(gc, fdt, ROOT_ADDRESS_CELLS, ROOT_SIZE_CELLS,
+ 2,
+ (uint64_t)gicd_base, (uint64_t)gicd_size,
+ (uint64_t)gicc_base, (uint64_t)gicc_size);
+ if (res) return res;
+
+ res = fdt_property_cell(fdt, "linux,phandle", PHANDLE_GIC);
+ if (res) return res;
+
+ res = fdt_property_cell(fdt, "phandle", PHANDLE_GIC);
+ if (res) return res;
+
+ res = fdt_end_node(fdt);
+ if (res) return res;
+
+ return 0;
+}
+
+static int make_timer_node(libxl__gc *gc, void *fdt, const struct arch_info
*ainfo)
+{
+ int res;
+ gic_interrupt ints[3];
+
+ res = fdt_begin_node(fdt, "timer");
+ if (res) return res;
+
+ res = fdt_property_compat(gc, fdt, 1, ainfo->timer_compat);
+ if (res) return res;
+
+ set_interrupt_ppi(ints[0], GUEST_TIMER_PHYS_S_PPI, 0xf, 0x8);
+ set_interrupt_ppi(ints[1], GUEST_TIMER_PHYS_NS_PPI, 0xf, 0x8);
+ set_interrupt_ppi(ints[2], GUEST_TIMER_VIRT_PPI, 0xf, 0x8);
+
+ res = fdt_property_interrupts(gc, fdt, ints, 3);
+ if (res) return res;
+
+ res = fdt_end_node(fdt);
+ if (res) return res;
+
+ return 0;
+}
+
+static int make_hypervisor_node(libxl__gc *gc, void *fdt,
+ const libxl_version_info *vers)
+{
+ int res;
+ gic_interrupt intr;
+
+ /* See linux Documentation/devicetree/bindings/arm/xen.txt */
+ res = fdt_begin_node(fdt, "hypervisor");
+ if (res) return res;
+
+ res = fdt_property_compat(gc, fdt, 2,
+ GCSPRINTF("xen,xen-%d.%d",
+ vers->xen_version_major,
+ vers->xen_version_minor),
+ "xen,xen");
+ if (res) return res;
+
+ /* reg 0 is grant table space */
+ res = fdt_property_regs(gc, fdt, ROOT_ADDRESS_CELLS, ROOT_SIZE_CELLS,
+ 1,GUEST_GNTTAB_BASE, GUEST_GNTTAB_SIZE);
+ if (res) return res;
+
+ /*
+ * interrupts is evtchn upcall:
+ * - Active-low level-sensitive
+ * - All cpus
+ */
+ set_interrupt_ppi(intr, GUEST_EVTCHN_PPI, 0xf, 0x8);
+
+ res = fdt_property_interrupts(gc, fdt, &intr, 1);
+ if (res) return res;
+
+ res = fdt_end_node(fdt);
+ if (res) return res;
+
+ return 0;
+}
+
+static const struct arch_info *get_arch_info(libxl__gc *gc,
+ const struct xc_dom_image *dom)
+{
+ int i;
+
+ for (i=0; i < ARRAY_SIZE(arch_info); i++) {
+ const struct arch_info *info = &arch_info[i];
+ if (!strcmp(dom->guest_type, info->guest_type))
+ return info;
+ }
+ LOG(ERROR, "Unable to find arch FDT info for %s\n",
dom->guest_type);
+ return NULL;
+}
+
+static void debug_dump_fdt(libxl__gc *gc, void *fdt)
+{
+ int fd, rc;
+
+ const char *dtb = getenv("LIBXL_DEBUG_DUMP_DTB");
+
+ if (!dtb)
+ return;
+
+ fd = open(dtb, O_CREAT|O_TRUNC|O_WRONLY, 0666);
+ if (fd < 0) {
+ LOGE(DEBUG, "cannot open %s for LIBXL_DEBUG_DUMP_DTB", dtb);
+ return;
+ }
+
+ rc = libxl_write_exactly(CTX, fd, fdt, fdt_totalsize(fdt), dtb,
"dtb");
+ if (rc < 0) {
+ LOG(DEBUG, "unable to write DTB debug dump output %d", rc);
+ return;
+ }
+
+ rc = close(fd);
+ if (rc < 0) {
+ LOGE(DEBUG, "unable to close DTB debug dump output");
+ return;
+ }
+}
+
+#define FDT_MAX_SIZE (1<<20)
+
+int libxl__arch_domain_configure(libxl__gc *gc,
+ libxl_domain_build_info *info,
+ struct xc_dom_image *dom)
+{
+ void *fdt = NULL;
+ int rc, res;
+ size_t fdt_size = 0;
+
+ const libxl_version_info *vers;
+ const struct arch_info *ainfo;
+
+ assert(info->type == LIBXL_DOMAIN_TYPE_PV);
+
+ vers = libxl_get_version_info(CTX);
+ if (vers == NULL) return ERROR_FAIL;
+
+ ainfo = get_arch_info(gc, dom);
+ if (ainfo == NULL) return ERROR_FAIL;
+
+ LOG(DEBUG, "constructing DTB for Xen version %d.%d guest",
+ vers->xen_version_major, vers->xen_version_minor);
+
+/*
+ * Call "call" handling FDR_ERR_*. Will either:
+ * - loop back to retry_resize
+ * - set rc and goto out
+ * - fall through successfully
+ *
+ * On FDT_ERR_NOSPACE we start again from scratch rather than
+ * realloc+libfdt_open_into because "call" may have failed half way
+ * through a series of steps leaving the partial tree in an
+ * inconsistent state, e.g. leaving a node open.
+ */
+#define FDT( call ) do { \
+ int fdt_res = (call); \
+ if (fdt_res == -FDT_ERR_NOSPACE && fdt_size < FDT_MAX_SIZE) \
+ goto next_resize; \
+ else if (fdt_res < 0) { \
+ LOG(ERROR, "FDT: %s failed: %d = %s", \
+ #call, fdt_res, fdt_strerror(fdt_res)); \
+ rc = ERROR_FAIL; \
+ goto out; \
+ } \
+} while(0)
+
+ for (;;) {
+next_resize:
+ if (fdt_size) {
+ fdt_size <<= 1;
+ LOG(DEBUG, "Increasing FDT size to %zd and retrying",
fdt_size);
+ } else {
+ fdt_size = 4096;
+ }
+
+ fdt = libxl__realloc(gc, fdt, fdt_size);
+
+ FDT( fdt_create(fdt, fdt_size) );
+
+ FDT( fdt_finish_reservemap(fdt) );
+
+ FDT( fdt_begin_node(fdt, "") );
+
+ FDT( make_root_properties(gc, vers, fdt) );
+ FDT( make_chosen_node(gc, fdt, info) );
+ FDT( make_cpus_node(gc, fdt, info->max_vcpus, ainfo) );
+ FDT( make_psci_node(gc, fdt) );
+
+ FDT( make_memory_node(gc, fdt,
+ dom->rambase_pfn << XC_PAGE_SHIFT,
+ info->target_memkb * 1024) );
+ FDT( make_intc_node(gc, fdt,
+ GUEST_GICD_BASE, GUEST_GICD_SIZE,
+ GUEST_GICC_BASE, GUEST_GICD_SIZE) );
+
+ FDT( make_timer_node(gc, fdt, ainfo) );
+ FDT( make_hypervisor_node(gc, fdt, vers) );
+
+ FDT( fdt_end_node(fdt) );
+
+ FDT( fdt_finish(fdt) );
+ break;
+ }
+#undef FDT
+
+ LOG(DEBUG, "fdt total size %d", fdt_totalsize(fdt));
+
+ res = xc_dom_devicetree_mem(dom, fdt, fdt_totalsize(fdt));
+ if (res) {
+ LOGE(ERROR, "xc_dom_devicetree_file failed");
+ rc = ERROR_FAIL;
+ goto out;
+ }
+
+ debug_dump_fdt(gc, fdt);
+
+ rc = 0;
+
+out:
+ return rc;
+}
diff --git a/tools/libxl/libxl_dom.c b/tools/libxl/libxl_dom.c
index 10f976c..6351ebd 100644
--- a/tools/libxl/libxl_dom.c
+++ b/tools/libxl/libxl_dom.c
@@ -400,6 +400,10 @@ int libxl__build_pv(libxl__gc *gc, uint32_t domid,
LOGE(ERROR, "xc_dom_parse_image failed");
goto out;
}
+ if ( (ret = libxl__arch_domain_configure(gc, info, dom)) != 0 ) {
+ LOGE(ERROR, "libxl__arch_domain_configure failed");
+ goto out;
+ }
if ( (ret = xc_dom_mem_init(dom, info->target_memkb / 1024)) != 0 ) {
LOGE(ERROR, "xc_dom_mem_init failed");
goto out;
diff --git a/tools/libxl/libxl_noarch.c b/tools/libxl/libxl_noarch.c
deleted file mode 100644
index 7893535..0000000
--- a/tools/libxl/libxl_noarch.c
+++ /dev/null
@@ -1,8 +0,0 @@
-#include "libxl_internal.h"
-#include "libxl_arch.h"
-
-int libxl__arch_domain_create(libxl__gc *gc, libxl_domain_config *d_config,
- uint32_t domid)
-{
- return 0;
-}
diff --git a/tools/libxl/libxl_x86.c b/tools/libxl/libxl_x86.c
index a78c91d..dd13c45 100644
--- a/tools/libxl/libxl_x86.c
+++ b/tools/libxl/libxl_x86.c
@@ -308,3 +308,10 @@ int libxl__arch_domain_create(libxl__gc *gc,
libxl_domain_config *d_config,
return ret;
}
+
+int libxl__arch_domain_configure(libxl__gc *gc,
+ libxl_domain_build_info *info,
+ struct xc_dom_image *dom)
+{
+ return 0;
+}
--
1.7.10.4
Ian Campbell
2013-Nov-12 17:39 UTC
[PATCH v4 17/17] libxl: Coding Style cleanups to libxl_dom.c
This file had a rash of spaces and assignments inside if expressions.
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Cc: Ian Jackson <ian.jackson@citrix.com>
---
tools/libxl/libxl_dom.c | 45 +++++++++++++++++++++++++++++----------------
1 file changed, 29 insertions(+), 16 deletions(-)
diff --git a/tools/libxl/libxl_dom.c b/tools/libxl/libxl_dom.c
index 6351ebd..227f7b9 100644
--- a/tools/libxl/libxl_dom.c
+++ b/tools/libxl/libxl_dom.c
@@ -353,26 +353,30 @@ int libxl__build_pv(libxl__gc *gc, uint32_t domid,
ret = xc_dom_kernel_mem(dom,
state->pv_kernel.data,
state->pv_kernel.size);
- if ( ret != 0) {
+ if (ret != 0) {
LOGE(ERROR, "xc_dom_kernel_mem failed");
goto out;
}
} else {
ret = xc_dom_kernel_file(dom, state->pv_kernel.path);
- if ( ret != 0) {
+ if (ret != 0) {
LOGE(ERROR, "xc_dom_kernel_file failed");
goto out;
}
}
- if ( state->pv_ramdisk.path && strlen(state->pv_ramdisk.path)
) {
+ if (state->pv_ramdisk.path && strlen(state->pv_ramdisk.path))
{
if (state->pv_ramdisk.mapped) {
- if ( (ret = xc_dom_ramdisk_mem(dom, state->pv_ramdisk.data,
state->pv_ramdisk.size)) != 0 ) {
+ ret = xc_dom_ramdisk_mem(dom,
+ state->pv_ramdisk.data,
+ state->pv_ramdisk.size);
+ if (ret != 0) {
LOGE(ERROR, "xc_dom_ramdisk_mem failed");
goto out;
}
} else {
- if ( (ret = xc_dom_ramdisk_file(dom, state->pv_ramdisk.path)) !=
0 ) {
+ ret = xc_dom_ramdisk_file(dom, state->pv_ramdisk.path);
+ if (ret != 0) {
LOGE(ERROR, "xc_dom_ramdisk_file failed");
goto out;
}
@@ -386,41 +390,50 @@ int libxl__build_pv(libxl__gc *gc, uint32_t domid,
dom->xenstore_domid = state->store_domid;
dom->claim_enabled = libxl_defbool_val(info->claim_mode);
- if ( (ret = xc_dom_boot_xen_init(dom, ctx->xch, domid)) != 0 ) {
+ ret = xc_dom_boot_xen_init(dom, ctx->xch, domid);
+ if (ret != 0) {
LOGE(ERROR, "xc_dom_boot_xen_init failed");
goto out;
}
#ifdef GUEST_RAM_BASE
- if ( (ret = xc_dom_rambase_init(dom, GUEST_RAM_BASE)) != 0 ) {
+ ret = xc_dom_rambase_init(dom, GUEST_RAM_BASE);
+ if (ret != 0) {
LOGE(ERROR, "xc_dom_rambase failed");
goto out;
}
#endif
- if ( (ret = xc_dom_parse_image(dom)) != 0 ) {
+ ret = xc_dom_parse_image(dom);
+ if (ret != 0) {
LOGE(ERROR, "xc_dom_parse_image failed");
goto out;
}
- if ( (ret = libxl__arch_domain_configure(gc, info, dom)) != 0 ) {
+ ret = libxl__arch_domain_configure(gc, info, dom);
+ if (ret != 0) {
LOGE(ERROR, "libxl__arch_domain_configure failed");
goto out;
}
- if ( (ret = xc_dom_mem_init(dom, info->target_memkb / 1024)) != 0 ) {
+ ret = xc_dom_mem_init(dom, info->target_memkb / 1024);
+ if (ret != 0) {
LOGE(ERROR, "xc_dom_mem_init failed");
goto out;
}
- if ( (ret = xc_dom_boot_mem_init(dom)) != 0 ) {
+ ret = xc_dom_boot_mem_init(dom);
+ if (ret != 0) {
LOGE(ERROR, "xc_dom_boot_mem_init failed");
goto out;
}
- if ( (ret = xc_dom_build_image(dom)) != 0 ) {
+ ret = xc_dom_build_image(dom);
+ if (ret != 0) {
LOGE(ERROR, "xc_dom_build_image failed");
goto out;
}
- if ( (ret = xc_dom_boot_image(dom)) != 0 ) {
+ ret = xc_dom_boot_image(dom);
+ if (ret != 0) {
LOGE(ERROR, "xc_dom_boot_image failed");
goto out;
}
- if ( (ret = xc_dom_gnttab_init(dom)) != 0 ) {
+ ret = xc_dom_gnttab_init(dom);
+ if (ret != 0) {
LOGE(ERROR, "xc_dom_gnttab_init failed");
goto out;
}
@@ -1393,7 +1406,7 @@ void libxl__xc_domain_save_done(libxl__egc *egc, void
*dss_void,
dss->guest_responded ?
"domain responded to suspend request" :
"domain did not respond to suspend
request");
- if ( !dss->guest_responded )
+ if (!dss->guest_responded)
rc = ERROR_GUEST_TIMEDOUT;
else
rc = ERROR_FAIL;
@@ -1648,7 +1661,7 @@ err:
if (fd>=0) close(fd);
errno = e;
- if ( rc )
+ if (rc)
LIBXL__LOG_ERRNO(ctx, LIBXL__LOG_ERROR, "cannot write %s for
%s",
newfilename, filename);
out:
--
1.7.10.4
Ian Campbell
2013-Nov-12 17:43 UTC
Re: [PATCH v4 00/17] xen: arm: 64-bit guest support and domU FDT autogeneration
On Tue, 2013-11-12 at 17:38 +0000, Ian Campbell wrote:> I''ve applied the review feedback from Matthew, Julien and Ian. Each > patch has an individual changelog. > > Ian J, I won''t send you the whole thing again, I think I managed to add > a Cc: tag to each thing you commented on...A summary might be helpful: X xen: update config.{sub,guess} for arm64 A xen: arm: Report aarch64 capability. A xen: arm: Add comment regard arm64 zImage v0 vs v1 xen: arm: allocate dom0 memory separately from preparing the dtb A xen: arm: add enable-method to cpu nodes for arm64 guests. N xen: arm: include header for for arch_do_{sys,dom}ctl prototype A xen: arm: implement XEN_DOMCTL_set_address_size A xen: arm: implement arch_set_info_guest for 64-bit vcpus A tools: check for libfdt when building for ARM ! xen: arm: define guest virtual platform in API headers A libxc: arm: rename various bits of zimage load with 32 suffix A libxc: allow caller to specify guest rambase rather than hardcoding ! libxc: arm: allow passing a device tree blob to the guest libxc: support for arm64 Image format A libxc: arm64 vcpu initialisation ! libxl: build a device tree for ARM guests N libxl: Coding Style cleanups to libxl_dom.c X == Not supposed to be included, please ignore... N == New A == Acked ! == Significant update
Ian Campbell
2013-Nov-12 17:46 UTC
Re: [PATCH v4 01/17] xen: update config.{sub, guess} for arm64
On Tue, 2013-11-12 at 17:39 +0000, Ian Campbell wrote: I didn''t mean to post this one, it''s a local hack not for inclusion... Please ignore.
Ian Campbell
2013-Nov-12 17:47 UTC
Re: [PATCH v4 04/17] xen: arm: allocate dom0 memory separately from preparing the dtb
On Tue, 2013-11-12 at 17:39 +0000, Ian Campbell wrote:> Mixing these two together is a pain, it forces us to prepare the dtb before > processing the kernel which means we don''t know whether the guest is 32- or > 64-bit while we construct its DTB. > > Instead split out the memory allocation (including 1:1 workaround handling) > and p2m setup into a separate phase and then create a memory node in the DTB > based on the result. > > This allows us to move kernel parsing before DTB setup. > > As part of this it was also necessary to rework where the decision regarding > the placement of the DTB and initrd in RAM was made. It is now made when > loading the kernel, which allows it to make use of the zImage/ELF specific > information and therefore to make decisions based on complete knowledge and do > it right rather than guessing in prepare_dtb and relying on a later check to > see if things worked. > > Signed-off-by: Ian Campbell <ian.campbell@citrix.com> > ---I put this to one side intending to come back and address the review comments and then forgot. Will update in v5. Sorry about that! FWIW I don''t think any changes here will invalidate review of other patches in the series.
Ian Jackson
2013-Nov-12 18:06 UTC
Re: [PATCH v4 16/17] libxl: build a device tree for ARM guests
Ian Campbell writes ("[PATCH v4 16/17] libxl: build a device tree for ARM
guests"):> Uses xc_dom_devicetree_mem which was just added. The call to this needs to
be
> carefully sequenced to be after xc_dom_parse_image (so we can tell which
kind
> of guest we are building, although we don''t use this yet) and
before
> xc_dom_mem_init which tries to decide where to place the FDT in guest RAM.
>
> Removes libxl_noarch which would only have been used by IA64 after this
> change. Remove IA64 as part of this patch.
>
> There is no attempt to expose this as a configuration setting for the user.
>
> Includes a debug hook to dump the dtb to a file for inspection.
...
The debug dump function has an anomalous error handling style[1] and
still leaks fd under some conditions.
([1] Well, actually it has the mistake-prone error handling style
found in the hypervisor, libxc, etc.)
> +static void debug_dump_fdt(libxl__gc *gc, void *fdt)
> +{
> + int fd, rc;
You mean
int fd=-1, rc, r;
We use "rc" inside libxl for a libxl error code.
> + const char *dtb = getenv("LIBXL_DEBUG_DUMP_DTB");
> +
> + if (!dtb)
> + return;
goto out;
> + fd = open(dtb, O_CREAT|O_TRUNC|O_WRONLY, 0666);
> + if (fd < 0) {
> + LOGE(DEBUG, "cannot open %s for LIBXL_DEBUG_DUMP_DTB",
dtb);
> + return;
goto out;
> + }
> +
> + rc = libxl_write_exactly(CTX, fd, fdt, fdt_totalsize(fdt), dtb,
"dtb");
> + if (rc < 0) {
> + LOG(DEBUG, "unable to write DTB debug dump output %d",
rc);
> + return;
goto out;
You probably don''t need the LOG because libxl_write_exactly already
logs.
> + }
> +
out:
> + rc = close(fd);
> + if (rc < 0) {
> + LOGE(DEBUG, "unable to close DTB debug dump output");
and this return is not needed:
> + return;
> + }
> +}
Apart from that, everything is fine.
(Sorry to find problems only in an unimportant debug function...)
Ian.
Ian Jackson
2013-Nov-12 18:08 UTC
Re: [PATCH v4 17/17] libxl: Coding Style cleanups to libxl_dom.c
Ian Campbell writes ("[PATCH v4 17/17] libxl: Coding Style cleanups to
libxl_dom.c"):> This file had a rash of spaces and assignments inside if expressions.
Acked-by: Ian Jackson <ian.jackson@eu.citrix.com>
If I were doing this
> - if ( ret != 0) {
> + if (ret != 0) {
I would write simply
+ if (ret) {
but I know not everyone agrees.
Thanks,
Ian.
Ian Jackson
2013-Nov-12 18:10 UTC
Re: [PATCH v4 13/17] libxc: arm: allow passing a device tree blob to the guest
Ian Campbell writes ("[PATCH v4 13/17] libxc: arm: allow passing a device
tree blob to the guest"):> Placement of the blob in guest RAM is simplistic but will do for now.
>
> This operation is only supported on ARM.
Acked-by: Ian Jackson <ian.jackson@eu.citrix.com>
Ian.
Stefano Stabellini
2013-Nov-12 19:18 UTC
Re: [PATCH v4 06/17] xen: arm: include header for for arch_do_{sys, dom}ctl prototype
On Tue, 12 Nov 2013, Ian Campbell wrote:> Signed-off-by: Ian Campbell <ian.campbell@citrix.com>Acked-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>> v4: split out from "xen: arm: implement XEN_DOMCTL_set_address_size" > --- > xen/arch/arm/domctl.c | 1 + > xen/arch/arm/sysctl.c | 1 + > 2 files changed, 2 insertions(+) > > diff --git a/xen/arch/arm/domctl.c b/xen/arch/arm/domctl.c > index 851ee40..4cf0294 100644 > --- a/xen/arch/arm/domctl.c > +++ b/xen/arch/arm/domctl.c > @@ -9,6 +9,7 @@ > #include <xen/lib.h> > #include <xen/errno.h> > #include <xen/sched.h> > +#include <xen/hypercall.h> > #include <public/domctl.h> > > long arch_do_domctl(struct xen_domctl *domctl, struct domain *d, > diff --git a/xen/arch/arm/sysctl.c b/xen/arch/arm/sysctl.c > index 6388204..98bab6a 100644 > --- a/xen/arch/arm/sysctl.c > +++ b/xen/arch/arm/sysctl.c > @@ -10,6 +10,7 @@ > #include <xen/types.h> > #include <xen/lib.h> > #include <xen/errno.h> > +#include <xen/hypercall.h> > #include <public/sysctl.h> > > void arch_do_physinfo(xen_sysctl_physinfo_t *pi) { } > -- > 1.7.10.4 >
Stefano Stabellini
2013-Nov-12 19:31 UTC
Re: [PATCH v4 10/17] xen: arm: define guest virtual platform in API headers
On Tue, 12 Nov 2013, Ian Campbell wrote:> The tools and the hypervisor need to agree on various aspects of the guest > environment, such as interrupt numbers, memory layout, initial register values > for registers which are implementation defined etc. Therefore move the > associated defines into the public interface headers, or create them as > necessary. > > This just exposes the current de-facto standard guest layout, which may be > subject to change in the future. This deliberately does not make the guest > layout dynamic since there is currently no need. > > These values should not be exposed to guests, they should find these things > out via device tree or should not be relying on implementation defined > defaults. > > Various bits of the hypervisor needed to change to configure dom0 with the real > platform values while using the virtual platform configuration for guests. > Arrange for this where appropriate and plumb through as needed. > > We also need to expose some 64-bit values (e.g. PSR_GUEST64_INIT) for the > benefit of 32 bit toolstacks building 64 bit guests. > > Signed-off-by: Ian Campbell <ian.campbell@citrix.com>Acked-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>> v4: dropped a spurious aarch64 ifdef > improved some comments and expand the commit message to clarify that this > is just implementing the current static de-facto setup. > put back PSR_GUEST32_INIT which disapeared somewhere along the line > --- > tools/libxc/xc_dom_arm.c | 4 +-- > xen/arch/arm/domain.c | 8 ++++-- > xen/arch/arm/domain_build.c | 13 +++++---- > xen/arch/arm/gic.c | 21 +++++++++----- > xen/arch/arm/psci.c | 2 +- > xen/arch/arm/traps.c | 2 +- > xen/arch/arm/vtimer.c | 13 ++++++--- > xen/include/asm-arm/domain.h | 1 + > xen/include/asm-arm/event.h | 3 +- > xen/include/asm-arm/gic.h | 3 -- > xen/include/asm-arm/processor.h | 7 ----- > xen/include/asm-arm/psci.h | 5 ---- > xen/include/public/arch-arm.h | 58 +++++++++++++++++++++++++++++++-------- > 13 files changed, 90 insertions(+), 50 deletions(-) > > diff --git a/tools/libxc/xc_dom_arm.c b/tools/libxc/xc_dom_arm.c > index df59ffb..9f3fdd3 100644 > --- a/tools/libxc/xc_dom_arm.c > +++ b/tools/libxc/xc_dom_arm.c > @@ -126,13 +126,13 @@ static int vcpu_arm(struct xc_dom_image *dom, void *ptr) > */ > ctxt->user_regs.r2_usr = 0xffffffff; > > - ctxt->sctlr = /* #define SCTLR_BASE */0x00c50078; > + ctxt->sctlr = SCTLR_GUEST_INIT; > > ctxt->ttbr0 = 0; > ctxt->ttbr1 = 0; > ctxt->ttbcr = 0; /* Defined Reset Value */ > > - ctxt->user_regs.cpsr = PSR_ABT_MASK|PSR_FIQ_MASK|PSR_IRQ_MASK|PSR_MODE_SVC; > + ctxt->user_regs.cpsr = PSR_GUEST32_INIT; > > ctxt->flags = VGCF_online; > > diff --git a/xen/arch/arm/domain.c b/xen/arch/arm/domain.c > index 5ff7adf..2f57d01 100644 > --- a/xen/arch/arm/domain.c > +++ b/xen/arch/arm/domain.c > @@ -461,7 +461,8 @@ int vcpu_initialise(struct vcpu *v) > if ( is_idle_vcpu(v) ) > return rc; > > - v->arch.sctlr = SCTLR_BASE; > + v->arch.sctlr = SCTLR_GUEST_INIT; > + > /* > * By default exposes an SMP system with AFF0 set to the VCPU ID > * TODO: Handle multi-threading processor and cluster > @@ -525,6 +526,9 @@ int arch_domain_create(struct domain *d, unsigned int domcr_flags) > if ( (rc = vcpu_domain_init(d)) != 0 ) > goto fail; > > + /* XXX dom0 needs more intelligent selection of PPI */ > + d->arch.evtchn_irq = GUEST_EVTCHN_PPI; > + > /* > * Virtual UART is only used by linux early printk and decompress code. > * Only use it for dom0 because the linux kernel may not support > @@ -740,7 +744,7 @@ void vcpu_mark_events_pending(struct vcpu *v) > if ( already_pending ) > return; > > - vgic_vcpu_inject_irq(v, VGIC_IRQ_EVTCHN_CALLBACK, 1); > + vgic_vcpu_inject_irq(v, v->domain->arch.evtchn_irq, 1); > } > > /* > diff --git a/xen/arch/arm/domain_build.c b/xen/arch/arm/domain_build.c > index 5232d1f..3d04274 100644 > --- a/xen/arch/arm/domain_build.c > +++ b/xen/arch/arm/domain_build.c > @@ -315,7 +315,8 @@ static int make_memory_node(struct domain *d, > return res; > } > > -static int make_hypervisor_node(void *fdt, const struct dt_device_node *parent) > +static int make_hypervisor_node(struct domain *d, > + void *fdt, const struct dt_device_node *parent) > { > const char compat[] > "xen,xen-"__stringify(XEN_VERSION)"."__stringify(XEN_SUBVERSION)"\0" > @@ -363,8 +364,8 @@ static int make_hypervisor_node(void *fdt, const struct dt_device_node *parent) > * > * TODO: Handle correctly the cpumask > */ > - DPRINT(" Event channel interrupt to %u\n", VGIC_IRQ_EVTCHN_CALLBACK); > - set_interrupt_ppi(intr, VGIC_IRQ_EVTCHN_CALLBACK, 0xf, > + DPRINT(" Event channel interrupt to %u\n", d->arch.evtchn_irq); > + set_interrupt_ppi(intr, d->arch.evtchn_irq, 0xf, > DT_IRQ_TYPE_LEVEL_LOW); > > res = fdt_property_interrupts(fdt, &intr, 1); > @@ -395,11 +396,11 @@ static int make_psci_node(void *fdt, const struct dt_device_node *parent) > if ( res ) > return res; > > - res = fdt_property_cell(fdt, "cpu_off", __PSCI_cpu_off); > + res = fdt_property_cell(fdt, "cpu_off", PSCI_cpu_off); > if ( res ) > return res; > > - res = fdt_property_cell(fdt, "cpu_on", __PSCI_cpu_on); > + res = fdt_property_cell(fdt, "cpu_on", PSCI_cpu_on); > if ( res ) > return res; > > @@ -804,7 +805,7 @@ static int handle_node(struct domain *d, struct kernel_info *kinfo, > if ( res ) > return res; > > - res = make_hypervisor_node(kinfo->fdt, np); > + res = make_hypervisor_node(d, kinfo->fdt, np); > if ( res ) > return res; > > diff --git a/xen/arch/arm/gic.c b/xen/arch/arm/gic.c > index 74575cd..33c6b8d 100644 > --- a/xen/arch/arm/gic.c > +++ b/xen/arch/arm/gic.c > @@ -717,7 +717,7 @@ int gic_events_need_delivery(void) > void gic_inject(void) > { > if ( vcpu_info(current, evtchn_upcall_pending) ) > - vgic_vcpu_inject_irq(current, VGIC_IRQ_EVTCHN_CALLBACK, 1); > + vgic_vcpu_inject_irq(current, current->domain->arch.evtchn_irq, 1); > > gic_restore_pending_irqs(current); > if (!gic_events_need_delivery()) > @@ -823,13 +823,20 @@ void gic_interrupt(struct cpu_user_regs *regs, int is_fiq) > > int gicv_setup(struct domain *d) > { > - /* TODO: Retrieve distributor and CPU guest base address from the > - * guest DTS > - * For the moment we use dom0 DTS > + /* > + * Domain 0 gets the hardware address. > + * Guests get the virtual platform layout. > */ > - d->arch.vgic.dbase = gic.dbase; > - d->arch.vgic.cbase = gic.cbase; > - > + if ( d == dom0 ) > + { > + d->arch.vgic.dbase = gic.dbase; > + d->arch.vgic.cbase = gic.cbase; > + } > + else > + { > + d->arch.vgic.dbase = GUEST_GICD_BASE; > + d->arch.vgic.cbase = GUEST_GICC_BASE; > + } > > d->arch.vgic.nr_lines = 0; > > diff --git a/xen/arch/arm/psci.c b/xen/arch/arm/psci.c > index 6c3be47..c82884f 100644 > --- a/xen/arch/arm/psci.c > +++ b/xen/arch/arm/psci.c > @@ -43,7 +43,7 @@ int do_psci_cpu_on(uint32_t vcpuid, register_t entry_point) > > memset(ctxt, 0, sizeof(*ctxt)); > ctxt->user_regs.pc64 = (u64) entry_point; > - ctxt->sctlr = SCTLR_BASE; > + ctxt->sctlr = SCTLR_GUEST_INIT; > ctxt->ttbr0 = 0; > ctxt->ttbr1 = 0; > ctxt->ttbcr = 0; /* Defined Reset Value */ > diff --git a/xen/arch/arm/traps.c b/xen/arch/arm/traps.c > index 287dd7b..f64b2b8 100644 > --- a/xen/arch/arm/traps.c > +++ b/xen/arch/arm/traps.c > @@ -870,7 +870,7 @@ typedef struct { > } arm_psci_t; > > #define PSCI(_name, _nr_args) \ > - [ __PSCI_ ## _name ] = { \ > + [ PSCI_ ## _name ] = { \ > .fn = (arm_psci_fn_t) &do_psci_ ## _name, \ > .nr_args = _nr_args, \ > } > diff --git a/xen/arch/arm/vtimer.c b/xen/arch/arm/vtimer.c > index d58a630..f323453 100644 > --- a/xen/arch/arm/vtimer.c > +++ b/xen/arch/arm/vtimer.c > @@ -54,21 +54,26 @@ int vcpu_domain_init(struct domain *d) > int vcpu_vtimer_init(struct vcpu *v) > { > struct vtimer *t = &v->arch.phys_timer; > + bool_t d0 = (v->domain == dom0); > > - /* TODO: Retrieve physical and virtual timer IRQ from the guest > - * DT. For the moment we use dom0 DT > + /* > + * Domain 0 uses the hardware interrupts, guests get the virtual platform. > */ > > init_timer(&t->timer, phys_timer_expired, t, v->processor); > t->ctl = 0; > t->cval = NOW(); > - t->irq = timer_dt_irq(TIMER_PHYS_NONSECURE_PPI)->irq; > + t->irq = d0 > + ? timer_dt_irq(TIMER_PHYS_NONSECURE_PPI)->irq > + : GUEST_TIMER_PHYS_NS_PPI; > t->v = v; > > t = &v->arch.virt_timer; > init_timer(&t->timer, virt_timer_expired, t, v->processor); > t->ctl = 0; > - t->irq = timer_dt_irq(TIMER_VIRT_PPI)->irq; > + t->irq = d0 > + ? timer_dt_irq(TIMER_VIRT_PPI)->irq > + : GUEST_TIMER_VIRT_PPI; > t->v = v; > > return 0; > diff --git a/xen/include/asm-arm/domain.h b/xen/include/asm-arm/domain.h > index 67bfbbc..53847a9 100644 > --- a/xen/include/asm-arm/domain.h > +++ b/xen/include/asm-arm/domain.h > @@ -112,6 +112,7 @@ struct arch_domain > spinlock_t lock; > } vuart; > > + int evtchn_irq; > } __cacheline_aligned; > > struct arch_vcpu > diff --git a/xen/include/asm-arm/event.h b/xen/include/asm-arm/event.h > index 04d854f..dd3ad13 100644 > --- a/xen/include/asm-arm/event.h > +++ b/xen/include/asm-arm/event.h > @@ -15,7 +15,8 @@ static inline int vcpu_event_delivery_is_enabled(struct vcpu *v) > > static inline int local_events_need_delivery_nomask(void) > { > - struct pending_irq *p = irq_to_pending(current, VGIC_IRQ_EVTCHN_CALLBACK); > + struct pending_irq *p = irq_to_pending(current, > + current->domain->arch.evtchn_irq); > > /* XXX: if the first interrupt has already been delivered, we should > * check whether any other interrupts with priority higher than the > diff --git a/xen/include/asm-arm/gic.h b/xen/include/asm-arm/gic.h > index 0a890be..41f0b3b 100644 > --- a/xen/include/asm-arm/gic.h > +++ b/xen/include/asm-arm/gic.h > @@ -129,9 +129,6 @@ > #define GICH_LR_CPUID_SHIFT 9 > #define GICH_VTR_NRLRGS 0x3f > > -/* XXX: write this into the DT */ > -#define VGIC_IRQ_EVTCHN_CALLBACK 31 > - > #ifndef __ASSEMBLY__ > #include <xen/device_tree.h> > > diff --git a/xen/include/asm-arm/processor.h b/xen/include/asm-arm/processor.h > index 5294421..3da3a3d 100644 > --- a/xen/include/asm-arm/processor.h > +++ b/xen/include/asm-arm/processor.h > @@ -48,15 +48,8 @@ > #define SCTLR_A (1<<1) > #define SCTLR_M (1<<0) > > -#define SCTLR_BASE 0x00c50078 > #define HSCTLR_BASE 0x30c51878 > > -#define PSR_GUEST32_INIT (PSR_ABT_MASK|PSR_FIQ_MASK|PSR_IRQ_MASK|PSR_MODE_SVC) > - > -#ifdef CONFIG_ARM_64 > -#define PSR_GUEST64_INIT (PSR_ABT_MASK|PSR_FIQ_MASK|PSR_IRQ_MASK|PSR_MODE_EL1h) > -#endif > - > /* HCR Hyp Configuration Register */ > #define HCR_RW (1<<31) /* Register Width, ARM64 only */ > #define HCR_TGE (1<<27) /* Trap General Exceptions */ > diff --git a/xen/include/asm-arm/psci.h b/xen/include/asm-arm/psci.h > index fdba636..67d4c35 100644 > --- a/xen/include/asm-arm/psci.h > +++ b/xen/include/asm-arm/psci.h > @@ -6,11 +6,6 @@ > #define PSCI_EINVAL -2 > #define PSCI_DENIED -3 > > -#define __PSCI_cpu_suspend 0 > -#define __PSCI_cpu_off 1 > -#define __PSCI_cpu_on 2 > -#define __PSCI_migrate 3 > - > int do_psci_cpu_on(uint32_t vcpuid, register_t entry_point); > int do_psci_cpu_off(uint32_t power_state); > int do_psci_cpu_suspend(uint32_t power_state, register_t entry_point); > diff --git a/xen/include/public/arch-arm.h b/xen/include/public/arch-arm.h > index 1e8aeda..cb41ddc 100644 > --- a/xen/include/public/arch-arm.h > +++ b/xen/include/public/arch-arm.h > @@ -302,8 +302,19 @@ typedef uint64_t xen_callback_t; > > #endif > > +#if defined(__XEN__) || defined(__XEN_TOOLS__) > + > /* PSR bits (CPSR, SPSR)*/ > > +#define PSR_THUMB (1<<5) /* Thumb Mode enable */ > +#define PSR_FIQ_MASK (1<<6) /* Fast Interrupt mask */ > +#define PSR_IRQ_MASK (1<<7) /* Interrupt mask */ > +#define PSR_ABT_MASK (1<<8) /* Asynchronous Abort mask */ > +#define PSR_BIG_ENDIAN (1<<9) /* arm32: Big Endian Mode */ > +#define PSR_DBG_MASK (1<<9) /* arm64: Debug Exception mask */ > +#define PSR_IT_MASK (0x0600fc00) /* Thumb If-Then Mask */ > +#define PSR_JAZELLE (1<<24) /* Jazelle Mode */ > + > /* 32 bit modes */ > #define PSR_MODE_USR 0x10 > #define PSR_MODE_FIQ 0x11 > @@ -316,7 +327,6 @@ typedef uint64_t xen_callback_t; > #define PSR_MODE_SYS 0x1f > > /* 64 bit modes */ > -#ifdef __aarch64__ > #define PSR_MODE_BIT 0x10 /* Set iff AArch32 */ > #define PSR_MODE_EL3h 0x0d > #define PSR_MODE_EL3t 0x0c > @@ -325,18 +335,44 @@ typedef uint64_t xen_callback_t; > #define PSR_MODE_EL1h 0x05 > #define PSR_MODE_EL1t 0x04 > #define PSR_MODE_EL0t 0x00 > -#endif > > -#define PSR_THUMB (1<<5) /* Thumb Mode enable */ > -#define PSR_FIQ_MASK (1<<6) /* Fast Interrupt mask */ > -#define PSR_IRQ_MASK (1<<7) /* Interrupt mask */ > -#define PSR_ABT_MASK (1<<8) /* Asynchronous Abort mask */ > -#define PSR_BIG_ENDIAN (1<<9) /* Big Endian Mode */ > -#ifdef __aarch64__ /* For Aarch64 bit 9 is repurposed. */ > -#define PSR_DBG_MASK (1<<9) > +#define PSR_GUEST32_INIT (PSR_ABT_MASK|PSR_FIQ_MASK|PSR_IRQ_MASK|PSR_MODE_SVC) > +#define PSR_GUEST64_INIT (PSR_ABT_MASK|PSR_FIQ_MASK|PSR_IRQ_MASK|PSR_MODE_EL1h) > + > +#define SCTLR_GUEST_INIT 0x00c50078 > + > +/* > + * Virtual machine platform (memory layout, interrupts) > + * > + * These are defined for consistency between the tools and the > + * hypervisor. Guests must not rely on these hardcoded values but > + * should instead use the FDT. > + */ > + > +/* Physical Address Space */ > +#define GUEST_GICD_BASE 0x2c001000ULL > +#define GUEST_GICD_SIZE 0x1000ULL > +#define GUEST_GICC_BASE 0x2c002000ULL > +#define GUEST_GICC_SIZE 0x100ULL > + > +#define GUEST_RAM_BASE 0x80000000ULL > + > +#define GUEST_GNTTAB_BASE 0xb0000000ULL > +#define GUEST_GNTTAB_SIZE 0x00020000ULL > + > +/* Interrupts */ > +#define GUEST_TIMER_VIRT_PPI 27 > +#define GUEST_TIMER_PHYS_S_PPI 29 > +#define GUEST_TIMER_PHYS_NS_PPI 30 > +#define GUEST_EVTCHN_PPI 31 > + > +/* PSCI functions */ > +#define PSCI_cpu_suspend 0 > +#define PSCI_cpu_off 1 > +#define PSCI_cpu_on 2 > +#define PSCI_migrate 3 > + > #endif > -#define PSR_IT_MASK (0x0600fc00) /* Thumb If-Then Mask */ > -#define PSR_JAZELLE (1<<24) /* Jazelle Mode */ > > #endif /* __XEN_PUBLIC_ARCH_ARM_H__ */ > > -- > 1.7.10.4 >
Stefano Stabellini
2013-Nov-12 19:37 UTC
Re: [PATCH v4 13/17] libxc: arm: allow passing a device tree blob to the guest
On Tue, 12 Nov 2013, Ian Campbell wrote:> @@ -916,6 +950,25 @@ int xc_dom_build_image(struct xc_dom_image *dom) > memcpy(ramdiskmap, dom->ramdisk_blob, dom->ramdisk_size); > } > > + /* load devicetree */ > + if ( dom->devicetree_blob ) > + { > + void *devicetreemap; > + > + if ( xc_dom_alloc_segment(dom, &dom->devicetree_seg, "devicetree", > + dom->devicetree_seg.vstart, > + dom->devicetree_size) != 0 ) > + goto err; > + devicetreemap = xc_dom_seg_to_ptr(dom, &dom->devicetree_seg); > + if ( devicetreemap == NULL ) > + { > + DOMPRINTF("%s: xc_dom_seg_to_ptr(dom, &dom->devicetree_seg) => NULL", > + __FUNCTION__); > + goto err; > + } > + memcpy(devicetreemap, dom->devicetree_blob, dom->devicetree_size);flush dcache?
Julien Grall
2013-Nov-12 19:45 UTC
Re: [PATCH v4 10/17] xen: arm: define guest virtual platform in API headers
On 11/12/2013 05:39 PM, Ian Campbell wrote:> The tools and the hypervisor need to agree on various aspects of the guest > environment, such as interrupt numbers, memory layout, initial register values > for registers which are implementation defined etc. Therefore move the > associated defines into the public interface headers, or create them as > necessary. > > This just exposes the current de-facto standard guest layout, which may be > subject to change in the future. This deliberately does not make the guest > layout dynamic since there is currently no need. > > These values should not be exposed to guests, they should find these things > out via device tree or should not be relying on implementation defined > defaults. > > Various bits of the hypervisor needed to change to configure dom0 with the real > platform values while using the virtual platform configuration for guests. > Arrange for this where appropriate and plumb through as needed. > > We also need to expose some 64-bit values (e.g. PSR_GUEST64_INIT) for the > benefit of 32 bit toolstacks building 64 bit guests. > > Signed-off-by: Ian Campbell <ian.campbell@citrix.com> > --- > v4: dropped a spurious aarch64 ifdef > improved some comments and expand the commit message to clarify that this > is just implementing the current static de-facto setup. > put back PSR_GUEST32_INIT which disapeared somewhere along the line > --- > tools/libxc/xc_dom_arm.c | 4 +-- > xen/arch/arm/domain.c | 8 ++++-- > xen/arch/arm/domain_build.c | 13 +++++---- > xen/arch/arm/gic.c | 21 +++++++++----- > xen/arch/arm/psci.c | 2 +- > xen/arch/arm/traps.c | 2 +- > xen/arch/arm/vtimer.c | 13 ++++++--- > xen/include/asm-arm/domain.h | 1 + > xen/include/asm-arm/event.h | 3 +- > xen/include/asm-arm/gic.h | 3 -- > xen/include/asm-arm/processor.h | 7 ----- > xen/include/asm-arm/psci.h | 5 ---- > xen/include/public/arch-arm.h | 58 +++++++++++++++++++++++++++++++-------- > 13 files changed, 90 insertions(+), 50 deletions(-) >[..]> diff --git a/xen/include/asm-arm/domain.h b/xen/include/asm-arm/domain.h > index 67bfbbc..53847a9 100644 > --- a/xen/include/asm-arm/domain.h > +++ b/xen/include/asm-arm/domain.h > @@ -112,6 +112,7 @@ struct arch_domain > spinlock_t lock; > } vuart; > > + int evtchn_irq;IRQ code uses unsigned int. Can you use unsigned int also here? With this minor change: Acked-by: Julien Grall <julien.grall@linaro.org>> } __cacheline_aligned; > > struct arch_vcpu[..] -- Julien Grall
Stefano Stabellini
2013-Nov-12 19:51 UTC
Re: [PATCH v4 16/17] libxl: build a device tree for ARM guests
On Tue, 12 Nov 2013, Ian Campbell wrote:> +static int make_intc_node(libxl__gc *gc, void *fdt, > + unsigned long long gicd_base, > + unsigned long long gicd_size, > + unsigned long long gicc_base, > + unsigned long long gicc_size) > +{ > + int res; > + const char *name = GCSPRINTF("interrupt-controller@%08llx", gicd_base); > + > + res = fdt_begin_node(fdt, name); > + if (res) return res; > + > + res = fdt_property_compat(gc, fdt, 2, > + "arm,cortex-a15-gic", > + "arm,cortex-a9-gic"); > + if (res) return res; > + > + > + res = fdt_property_cell(fdt, "#interrupt-cells", 3); > + if (res) return res; > + > + res = fdt_property_cell(fdt, "#address-cells", 0); > + if (res) return res; > + > + res = fdt_property(fdt, "interrupt-controller", NULL, 0); > + if (res) return res; > + > + res = fdt_property_regs(gc, fdt, ROOT_ADDRESS_CELLS, ROOT_SIZE_CELLS, > + 2, > + (uint64_t)gicd_base, (uint64_t)gicd_size, > + (uint64_t)gicc_base, (uint64_t)gicc_size); > + if (res) return res; > + > + res = fdt_property_cell(fdt, "linux,phandle", PHANDLE_GIC); > + if (res) return res; > + > + res = fdt_property_cell(fdt, "phandle", PHANDLE_GIC); > + if (res) return res;Why are you adding this property?
Julien Grall
2013-Nov-12 19:59 UTC
Re: [PATCH v4 16/17] libxl: build a device tree for ARM guests
On 11/12/2013 05:39 PM, Ian Campbell wrote:> Uses xc_dom_devicetree_mem which was just added. The call to this needs to be > carefully sequenced to be after xc_dom_parse_image (so we can tell which kind > of guest we are building, although we don''t use this yet) and before > xc_dom_mem_init which tries to decide where to place the FDT in guest RAM. > > Removes libxl_noarch which would only have been used by IA64 after this > change. Remove IA64 as part of this patch. > > There is no attempt to expose this as a configuration setting for the user. > > Includes a debug hook to dump the dtb to a file for inspection. > > TODO: > - v7 CPU compat is hardcoded to cortex-a15 -- may need to define something more > generic via mach-virt dt bindngs? > > Signed-off-by: Ian Campbell <ian.campbell@citrix.com> > Cc: Ian Jackson <ian.jackson@eu.citrix.com> > --- > v4: Drop spurious comment in header > s/__be32/be32/ and s/gic_interrupt_t/gic_interrupt/ to avoid reserved names > Coding style fixes > Use GCSPRINTF > use for(;;) around FDT creation loop, undef FDT when done > use libxl__realloc for fdt size increase > Refactor debug dump into its own function, remove NDEBUG ifdef > v2: base addresses, irq, evtchn etc stuff is now from public API headers, > avoiding the need to introduce domctls etc until we want to make them > dynamic. > fix memory node > Improve libfdt error handling, especially for FDT_ERR_NOSPACE. > Derive guest CPU and timer compatiblity nodes from the guest type. > --- > tools/libxl/Makefile | 6 +- > tools/libxl/libxl_arch.h | 3 + > tools/libxl/libxl_arm.c | 516 ++++++++++++++++++++++++++++++++++++++++++++ > tools/libxl/libxl_dom.c | 4 + > tools/libxl/libxl_noarch.c | 8 - > tools/libxl/libxl_x86.c | 7 + > 6 files changed, 534 insertions(+), 10 deletions(-) > create mode 100644 tools/libxl/libxl_arm.c > delete mode 100644 tools/libxl/libxl_noarch.c[..]> diff --git a/tools/libxl/libxl_arm.c b/tools/libxl/libxl_arm.c > new file mode 100644 > index 0000000..9fe9a81 > --- /dev/null > +++ b/tools/libxl/libxl_arm.c > @@ -0,0 +1,516 @@ > +#include "libxl_internal.h" > +#include "libxl_arch.h" > + > +#include <xc_dom.h> > +#include <libfdt.h> > +#include <assert.h> > + > +int libxl__arch_domain_create(libxl__gc *gc, libxl_domain_config *d_config, > + uint32_t domid) > +{ > + return 0; > +} > + > +static struct arch_info { > + const char *guest_type; > + const char *timer_compat; > + const char *cpu_compat; > +} arch_info[] = { > + {"xen-3.0-armv7l", "arm,armv7-timer", "arm,cortex-a15" },What about "arm,armv7" instead arm,cortex-a15? It''s more accurate as it''s possible to boot Xen on cortex-a7 core. -- Julien Grall
Ian Campbell
2013-Nov-13 10:04 UTC
Re: [PATCH v4 16/17] libxl: build a device tree for ARM guests
On Tue, 2013-11-12 at 18:06 +0000, Ian Jackson wrote:> Ian Campbell writes ("[PATCH v4 16/17] libxl: build a device tree for ARM guests"): > > Uses xc_dom_devicetree_mem which was just added. The call to this needs to be > > carefully sequenced to be after xc_dom_parse_image (so we can tell which kind > > of guest we are building, although we don''t use this yet) and before > > xc_dom_mem_init which tries to decide where to place the FDT in guest RAM. > > > > Removes libxl_noarch which would only have been used by IA64 after this > > change. Remove IA64 as part of this patch. > > > > There is no attempt to expose this as a configuration setting for the user. > > > > Includes a debug hook to dump the dtb to a file for inspection. > ... > > The debug dump function has an anomalous error handling style[1] and > still leaks fd under some conditions.Oh balls, I thought about all this but neglected to do the actual typing!> (Sorry to find problems only in an unimportant debug function...)No worries, you had already raised them and I should have done something about it...
Ian Campbell
2013-Nov-13 10:05 UTC
Re: [PATCH v4 17/17] libxl: Coding Style cleanups to libxl_dom.c
On Tue, 2013-11-12 at 18:08 +0000, Ian Jackson wrote:> Ian Campbell writes ("[PATCH v4 17/17] libxl: Coding Style cleanups to libxl_dom.c"): > > This file had a rash of spaces and assignments inside if expressions. > > Acked-by: Ian Jackson <ian.jackson@eu.citrix.com>Thanks.> > If I were doing this > > > - if ( ret != 0) { > > + if (ret != 0) { > > I would write simply > > + if (ret) { > > but I know not everyone agrees.I thought about changing this too but decided not to keep pulling on the thread... Ian.
Ian Campbell
2013-Nov-13 10:19 UTC
Re: [PATCH v4 10/17] xen: arm: define guest virtual platform in API headers
On Tue, 2013-11-12 at 19:45 +0000, Julien Grall wrote:> > + int evtchn_irq; > > IRQ code uses unsigned int. Can you use unsigned int also here?Done, will be in v5.> With this minor change: > > Acked-by: Julien Grall <julien.grall@linaro.org>Thanks.> > > } __cacheline_aligned; > > > > struct arch_vcpu > > [..] >
Ian Campbell
2013-Nov-13 10:21 UTC
Re: [PATCH v4 13/17] libxc: arm: allow passing a device tree blob to the guest
On Tue, 2013-11-12 at 19:37 +0000, Stefano Stabellini wrote:> On Tue, 12 Nov 2013, Ian Campbell wrote: > > @@ -916,6 +950,25 @@ int xc_dom_build_image(struct xc_dom_image *dom) > > memcpy(ramdiskmap, dom->ramdisk_blob, dom->ramdisk_size); > > } > > > > + /* load devicetree */ > > + if ( dom->devicetree_blob ) > > + { > > + void *devicetreemap; > > + > > + if ( xc_dom_alloc_segment(dom, &dom->devicetree_seg, "devicetree", > > + dom->devicetree_seg.vstart, > > + dom->devicetree_size) != 0 ) > > + goto err; > > + devicetreemap = xc_dom_seg_to_ptr(dom, &dom->devicetree_seg); > > + if ( devicetreemap == NULL ) > > + { > > + DOMPRINTF("%s: xc_dom_seg_to_ptr(dom, &dom->devicetree_seg) => NULL", > > + __FUNCTION__); > > + goto err; > > + } > > + memcpy(devicetreemap, dom->devicetree_blob, dom->devicetree_size); > > flush dcache?We don''t do so for the initrd or the kernel image, and in any case this is user space (and common code) so I don''t know how we can do so. IIRC Julien was working on a generic solution for this issue. Ian.
Ian Campbell
2013-Nov-13 10:23 UTC
Re: [PATCH v4 16/17] libxl: build a device tree for ARM guests
On Tue, 2013-11-12 at 19:59 +0000, Julien Grall wrote:> > On 11/12/2013 05:39 PM, Ian Campbell wrote: > > Uses xc_dom_devicetree_mem which was just added. The call to this needs to be > > carefully sequenced to be after xc_dom_parse_image (so we can tell which kind > > of guest we are building, although we don''t use this yet) and before > > xc_dom_mem_init which tries to decide where to place the FDT in guest RAM. > > > > Removes libxl_noarch which would only have been used by IA64 after this > > change. Remove IA64 as part of this patch. > > > > There is no attempt to expose this as a configuration setting for the user. > > > > Includes a debug hook to dump the dtb to a file for inspection. > > > > TODO: > > - v7 CPU compat is hardcoded to cortex-a15 -- may need to define something more > > generic via mach-virt dt bindngs? > > > > Signed-off-by: Ian Campbell <ian.campbell@citrix.com> > > Cc: Ian Jackson <ian.jackson@eu.citrix.com> > > --- > > v4: Drop spurious comment in header > > s/__be32/be32/ and s/gic_interrupt_t/gic_interrupt/ to avoid reserved names > > Coding style fixes > > Use GCSPRINTF > > use for(;;) around FDT creation loop, undef FDT when done > > use libxl__realloc for fdt size increase > > Refactor debug dump into its own function, remove NDEBUG ifdef > > v2: base addresses, irq, evtchn etc stuff is now from public API headers, > > avoiding the need to introduce domctls etc until we want to make them > > dynamic. > > fix memory node > > Improve libfdt error handling, especially for FDT_ERR_NOSPACE. > > Derive guest CPU and timer compatiblity nodes from the guest type. > > --- > > tools/libxl/Makefile | 6 +- > > tools/libxl/libxl_arch.h | 3 + > > tools/libxl/libxl_arm.c | 516 ++++++++++++++++++++++++++++++++++++++++++++ > > tools/libxl/libxl_dom.c | 4 + > > tools/libxl/libxl_noarch.c | 8 - > > tools/libxl/libxl_x86.c | 7 + > > 6 files changed, 534 insertions(+), 10 deletions(-) > > create mode 100644 tools/libxl/libxl_arm.c > > delete mode 100644 tools/libxl/libxl_noarch.c > > [..] > > > diff --git a/tools/libxl/libxl_arm.c b/tools/libxl/libxl_arm.c > > new file mode 100644 > > index 0000000..9fe9a81 > > --- /dev/null > > +++ b/tools/libxl/libxl_arm.c > > @@ -0,0 +1,516 @@ > > +#include "libxl_internal.h" > > +#include "libxl_arch.h" > > + > > +#include <xc_dom.h> > > +#include <libfdt.h> > > +#include <assert.h> > > + > > +int libxl__arch_domain_create(libxl__gc *gc, libxl_domain_config *d_config, > > + uint32_t domid) > > +{ > > + return 0; > > +} > > + > > +static struct arch_info { > > + const char *guest_type; > > + const char *timer_compat; > > + const char *cpu_compat; > > +} arch_info[] = { > > + {"xen-3.0-armv7l", "arm,armv7-timer", "arm,cortex-a15" }, > > What about "arm,armv7" instead arm,cortex-a15? It''s more accurate as > it''s possible to boot Xen on cortex-a7 core.I don''t think that is a defined compat string though. I think this probably needs resolving either by extending the mach-virt "spec" to cover a common generic CPU type or by somehow exposing the physical CPU compatibility string to the tools.
Ian Campbell
2013-Nov-13 10:26 UTC
Re: [PATCH v4 16/17] libxl: build a device tree for ARM guests
On Tue, 2013-11-12 at 19:51 +0000, Stefano Stabellini wrote:> > + res = fdt_property_cell(fdt, "phandle", PHANDLE_GIC); > > + if (res) return res; > > Why are you adding this property?When you write e.g. "interrupt-parent = <&gic>" what you are actually doing is creating a cell with a reference the phandle of the node called "gic". If you decompile a dtb you''ll see that the gic node has a property "phandle = N" (where N is some unique integer) and that other nodes have "interrupt-parent = <N>". So this is adding that phandle property so we can refer to it. Ian.
Stefano Stabellini
2013-Nov-13 12:01 UTC
Re: [PATCH v4 13/17] libxc: arm: allow passing a device tree blob to the guest
On Wed, 13 Nov 2013, Ian Campbell wrote:> On Tue, 2013-11-12 at 19:37 +0000, Stefano Stabellini wrote: > > On Tue, 12 Nov 2013, Ian Campbell wrote: > > > @@ -916,6 +950,25 @@ int xc_dom_build_image(struct xc_dom_image *dom) > > > memcpy(ramdiskmap, dom->ramdisk_blob, dom->ramdisk_size); > > > } > > > > > > + /* load devicetree */ > > > + if ( dom->devicetree_blob ) > > > + { > > > + void *devicetreemap; > > > + > > > + if ( xc_dom_alloc_segment(dom, &dom->devicetree_seg, "devicetree", > > > + dom->devicetree_seg.vstart, > > > + dom->devicetree_size) != 0 ) > > > + goto err; > > > + devicetreemap = xc_dom_seg_to_ptr(dom, &dom->devicetree_seg); > > > + if ( devicetreemap == NULL ) > > > + { > > > + DOMPRINTF("%s: xc_dom_seg_to_ptr(dom, &dom->devicetree_seg) => NULL", > > > + __FUNCTION__); > > > + goto err; > > > + } > > > + memcpy(devicetreemap, dom->devicetree_blob, dom->devicetree_size); > > > > flush dcache? > > We don''t do so for the initrd or the kernel imageConsidering that the guest doesn''t have paging enabled at this point (the guest doesn''t even exist yet), I wonder if it is actually safe. But you are right, we have the same problem in Xen.> and in any case this > is user space (and common code) so I don''t know how we can do so.Linux offers an __ARM_NR_cacheflush syscall, it is implemented as a dcache flush on v7.> IIRC Julien was working on a generic solution for this issue.What is the generic solution?
Ian Campbell
2013-Nov-13 12:16 UTC
Re: [PATCH v4 13/17] libxc: arm: allow passing a device tree blob to the guest
On Wed, 2013-11-13 at 12:01 +0000, Stefano Stabellini wrote:> > and in any case this > > is user space (and common code) so I don''t know how we can do so. > > Linux offers an __ARM_NR_cacheflush syscall, it is implemented as a > dcache flush on v7. > > > > IIRC Julien was working on a generic solution for this issue. > > What is the generic solution?Not sure, could be __ARM_NR_cacheflush or maybe when adding foreign mappings to a p2m we should make them uncached depending on the target VCPUs state (in particular when the domain is under construction, I''m less concerned with domains which turn off caching at runtime). Or maybe he had some other idea. Ian.
Julien Grall
2013-Nov-13 13:42 UTC
Re: [PATCH v4 13/17] libxc: arm: allow passing a device tree blob to the guest
On 11/13/2013 12:16 PM, Ian Campbell wrote:> On Wed, 2013-11-13 at 12:01 +0000, Stefano Stabellini wrote: > >>> and in any case this >>> is user space (and common code) so I don''t know how we can do so. >> >> Linux offers an __ARM_NR_cacheflush syscall, it is implemented as a >> dcache flush on v7. >> >> >>> IIRC Julien was working on a generic solution for this issue. >> >> What is the generic solution? > > Not sure, could be __ARM_NR_cacheflush or maybe when adding foreign > mappings to a p2m we should make them uncached depending on the target > VCPUs state (in particular when the domain is under construction, I''m > less concerned with domains which turn off caching at runtime). Or maybe > he had some other idea.I plan to implement the solution with __ARM_NR_cacheflush. It''s the best approach for now. It''s also implemented on v8 with __ARM_NR_compat_cacheflush. -- Julien Grall
Ian Campbell
2013-Nov-13 13:46 UTC
Re: [PATCH v4 13/17] libxc: arm: allow passing a device tree blob to the guest
On Wed, 2013-11-13 at 13:42 +0000, Julien Grall wrote:> > On 11/13/2013 12:16 PM, Ian Campbell wrote: > > On Wed, 2013-11-13 at 12:01 +0000, Stefano Stabellini wrote: > > > >>> and in any case this > >>> is user space (and common code) so I don''t know how we can do so. > >> > >> Linux offers an __ARM_NR_cacheflush syscall, it is implemented as a > >> dcache flush on v7. > >> > >> > >>> IIRC Julien was working on a generic solution for this issue. > >> > >> What is the generic solution? > > > > Not sure, could be __ARM_NR_cacheflush or maybe when adding foreign > > mappings to a p2m we should make them uncached depending on the target > > VCPUs state (in particular when the domain is under construction, I''m > > less concerned with domains which turn off caching at runtime). Or maybe > > he had some other idea. > > I plan to implement the solution with __ARM_NR_cacheflush. It''s the best > approach for now. It''s also implemented on v8 with > __ARM_NR_compat_cacheflush.Are you sure that the second one isn''t only avaiable to compat (AKA 32-bit) processes? Ian
Julien Grall
2013-Nov-13 13:51 UTC
Re: [PATCH v4 13/17] libxc: arm: allow passing a device tree blob to the guest
On 11/13/2013 01:46 PM, Ian Campbell wrote:> Are you sure that the second one isn''t only avaiable to compat (AKA > 32-bit) processes?You are right. It''s only available for 32-bit task on arm64. -- Julien Grall