Displaying 16 results from an estimated 16 matches for "asm_".
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2017 May 19
0
[PATCH 03/10] xen: move interrupt handling for pv guests under CONFIG_XEN_PV umbrella
...S
@@ -789,7 +789,7 @@ ENTRY(spurious_interrupt_bug)
jmp common_exception
END(spurious_interrupt_bug)
-#ifdef CONFIG_XEN
+#ifdef CONFIG_XEN_PV
ENTRY(xen_hypervisor_callback)
pushl $-1 /* orig_ax = -1 => not a system call */
SAVE_ALL
@@ -870,7 +870,9 @@ ENTRY(xen_failsafe_callback)
_ASM_EXTABLE(3b, 8b)
_ASM_EXTABLE(4b, 9b)
ENDPROC(xen_failsafe_callback)
+#endif /* CONFIG_XEN_PV */
+#ifdef CONFIG_XEN
BUILD_INTERRUPT3(xen_hvm_callback_vector, HYPERVISOR_CALLBACK_VECTOR,
xen_evtchn_do_upcall)
diff --git a/arch/x86/entry/entry_64.S b/arch/x86/entry/entry_64.S
index 607d72c4a...
2018 Aug 31
2
Inline ASM ARM syntax to load immediate values with integrated assembler
Hi,
What would be the proper syntax in a C file, using inline assembly, to
load a immediate value into an ARM register using clang & integrated
assembler?
The following syntax is rejected by LLVM:
// clang -target armv7em-none-eabi -mthumb
#define CONSTANT 0x1234
void __attribute__((naked))
foo(void)
{
asm volatile (
"ldr r0, =%0 \n"
2012 Jan 06
3
[PATCH] xen: remove CONFIG_XEN_DOM0 compile option
...;& X86_LOCAL_APIC
diff --git a/arch/x86/xen/Makefile b/arch/x86/xen/Makefile
index add2c2d..b2d4c4b 100644
--- a/arch/x86/xen/Makefile
+++ b/arch/x86/xen/Makefile
@@ -13,12 +13,11 @@ CFLAGS_mmu.o := $(nostackp)
obj-y := enlighten.o setup.o multicalls.o mmu.o irq.o \
time.o xen-asm.o xen-asm_$(BITS).o \
grant-table.o suspend.o platform-pci-unplug.o \
- p2m.o
+ p2m.o vga.o
obj-$(CONFIG_EVENT_TRACING) += trace.o
obj-$(CONFIG_SMP) += smp.o
obj-$(CONFIG_PARAVIRT_SPINLOCKS)+= spinlock.o
obj-$(CONFIG_XEN_DEBUG_FS) += debugfs.o
-obj-$(CONFIG_XEN_DOM0) += vga.o
obj-$(CONFIG_S...
2012 Jan 06
3
[PATCH] xen: remove CONFIG_XEN_DOM0 compile option
...;& X86_LOCAL_APIC
diff --git a/arch/x86/xen/Makefile b/arch/x86/xen/Makefile
index add2c2d..b2d4c4b 100644
--- a/arch/x86/xen/Makefile
+++ b/arch/x86/xen/Makefile
@@ -13,12 +13,11 @@ CFLAGS_mmu.o := $(nostackp)
obj-y := enlighten.o setup.o multicalls.o mmu.o irq.o \
time.o xen-asm.o xen-asm_$(BITS).o \
grant-table.o suspend.o platform-pci-unplug.o \
- p2m.o
+ p2m.o vga.o
obj-$(CONFIG_EVENT_TRACING) += trace.o
obj-$(CONFIG_SMP) += smp.o
obj-$(CONFIG_PARAVIRT_SPINLOCKS)+= spinlock.o
obj-$(CONFIG_XEN_DEBUG_FS) += debugfs.o
-obj-$(CONFIG_XEN_DOM0) += vga.o
obj-$(CONFIG_S...
2012 Jan 06
3
[PATCH] xen: remove CONFIG_XEN_DOM0 compile option
...;& X86_LOCAL_APIC
diff --git a/arch/x86/xen/Makefile b/arch/x86/xen/Makefile
index add2c2d..b2d4c4b 100644
--- a/arch/x86/xen/Makefile
+++ b/arch/x86/xen/Makefile
@@ -13,12 +13,11 @@ CFLAGS_mmu.o := $(nostackp)
obj-y := enlighten.o setup.o multicalls.o mmu.o irq.o \
time.o xen-asm.o xen-asm_$(BITS).o \
grant-table.o suspend.o platform-pci-unplug.o \
- p2m.o
+ p2m.o vga.o
obj-$(CONFIG_EVENT_TRACING) += trace.o
obj-$(CONFIG_SMP) += smp.o
obj-$(CONFIG_PARAVIRT_SPINLOCKS)+= spinlock.o
obj-$(CONFIG_XEN_DEBUG_FS) += debugfs.o
-obj-$(CONFIG_XEN_DOM0) += vga.o
obj-$(CONFIG_S...
2020 Aug 24
0
[PATCH v6 48/76] x86/entry/64: Add entry code for #VC handler
...ratch_reg=%rsp
movq PER_CPU_VAR(cpu_current_top_of_stack), %rsp
+SYM_INNER_LABEL(entry_SYSCALL_64_safe_stack, SYM_L_GLOBAL)
+
/* Construct struct pt_regs on stack */
pushq $__USER_DS /* pt_regs->ss */
pushq PER_CPU_VAR(cpu_tss_rw + TSS_sp2) /* pt_regs->sp */
@@ -446,6 +448,82 @@ _ASM_NOKPROBE(\asmsym)
SYM_CODE_END(\asmsym)
.endm
+/**
+ * idtentry_vc - Macro to generate entry stub for #VC
+ * @vector: Vector number
+ * @asmsym: ASM symbol for the entry point
+ * @cfunc: C function to be called
+ *
+ * The macro emits code to set up the kernel context for #VC. The #VC handl...
2009 Jan 31
14
[PATCH 2/3] xen: make direct versions of irq_enable/disable/save/restore to common code
...ts needs to variants to save different registers.
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
---
arch/x86/xen/Makefile | 3
arch/x86/xen/xen-asm.S | 140 +++++++++++++++++++++++++++++++++++++++++++++
arch/x86/xen/xen-asm.h | 12 +++
arch/x86/xen/xen-asm_32.S | 113 ++++--------------------------------
arch/x86/xen/xen-asm_64.S | 136 +------------------------------------------
5 files changed, 171 insertions(+), 233 deletions(-)
===================================================================
--- a/arch/x86/xen/Makefile
+++ b/arch/x86/xen/Mak...
2017 May 19
13
[PATCH 00/10] paravirt: make amount of paravirtualization configurable
Today paravirtualization is a all-or-nothing game: either a kernel is
compiled with no paravirtualization support at all, or it is supporting
paravirtualized environments like Xen pv-guests or lguest additionally
to some paravirtualized tuning for KVM, Hyperv, VMWare or Xen
HVM-guests.
As support of pv-guests requires quite intrusive pv-hooks (e.g. all
access functions to page table entries,
2017 May 19
13
[PATCH 00/10] paravirt: make amount of paravirtualization configurable
Today paravirtualization is a all-or-nothing game: either a kernel is
compiled with no paravirtualization support at all, or it is supporting
paravirtualized environments like Xen pv-guests or lguest additionally
to some paravirtualized tuning for KVM, Hyperv, VMWare or Xen
HVM-guests.
As support of pv-guests requires quite intrusive pv-hooks (e.g. all
access functions to page table entries,
2008 Nov 13
69
[PATCH 00 of 38] xen: add more Xen dom0 support
Hi Ingo,
Here''s the chunk of patches to add Xen Dom0 support (it''s probably
worth creating a new xen/dom0 topic branch for it).
A dom0 Xen domain is basically the same as a normal domU domain, but
it has extra privileges to directly access hardware. There are two
issues to deal with:
- translating to and from the domain''s pseudo-physical addresses and
real machine
2020 Jul 24
86
[PATCH v5 00/75] x86: SEV-ES Guest Support
From: Joerg Roedel <jroedel at suse.de>
Hi,
here is a rebased version of the latest SEV-ES patches. They are now
based on latest tip/master instead of upstream Linux and include the
necessary changes.
Changes to v4 are in particular:
- Moved early IDT setup code to idt.c, because the idt_descr
and the idt_table are now static
- This required to make stack protector work early (or
2020 Jul 14
92
[PATCH v4 00/75] x86: SEV-ES Guest Support
From: Joerg Roedel <jroedel at suse.de>
Hi,
here is the fourth version of the SEV-ES Guest Support patches. I
addressed the review comments sent to me for the previous version and
rebased the code v5.8-rc5.
The biggest change in this version is the IST handling code for the
#VC handler. I adapted the entry code for the #VC handler to the big
pile of entry code changes merged into
2020 Jul 14
92
[PATCH v4 00/75] x86: SEV-ES Guest Support
From: Joerg Roedel <jroedel at suse.de>
Hi,
here is the fourth version of the SEV-ES Guest Support patches. I
addressed the review comments sent to me for the previous version and
rebased the code v5.8-rc5.
The biggest change in this version is the IST handling code for the
#VC handler. I adapted the entry code for the #VC handler to the big
pile of entry code changes merged into
2020 Aug 24
96
[PATCH v6 00/76] x86: SEV-ES Guest Support
From: Joerg Roedel <jroedel at suse.de>
Hi,
here is the new version of the SEV-ES client enabling patch-set. It is
based on the latest tip/master branch and contains the necessary
changes. In particular those ar:
- Enabling CR4.FSGSBASE early on supported processors so that
early #VC exceptions on APs can be handled.
- Add another patch (patch 1) to fix a KVM frame-size build
2020 Sep 07
84
[PATCH v7 00/72] x86: SEV-ES Guest Support
From: Joerg Roedel <jroedel at suse.de>
Hi,
here is a new version of the SEV-ES Guest Support patches for x86. The
previous versions can be found as a linked list starting here:
https://lore.kernel.org/lkml/20200824085511.7553-1-joro at 8bytes.org/
I updated the patch-set based on ther review comments I got and the
discussions around it.
Another important change is that the early IDT
2020 Sep 07
84
[PATCH v7 00/72] x86: SEV-ES Guest Support
From: Joerg Roedel <jroedel at suse.de>
Hi,
here is a new version of the SEV-ES Guest Support patches for x86. The
previous versions can be found as a linked list starting here:
https://lore.kernel.org/lkml/20200824085511.7553-1-joro at 8bytes.org/
I updated the patch-set based on ther review comments I got and the
discussions around it.
Another important change is that the early IDT