Displaying 9 results from an estimated 9 matches for "x86_feature_ds".
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x86_feature_de
2013 Mar 12
0
[PATCH] vpmu intel: pass through cpuid bits when BTS is enabled
Hi,
this patch passes the orginal cpuid bits for X86_FEATURE_DTES64
(64-bit DS Area) and X86_FEATURE_DSCPL (CPL Qualified Debug Store) to the
guest when the BTS feature is switched on.
I forgot this when I did this BTS emulation.
Thanks.
Dietmar.
Signed-off-by: Dietmar Hahn <dietmar.hahn@ts.fujitsu.com>
diff -r a6b81234b189 xen/arch/x86/hvm/vmx/vpmu_core2.c
--- a/xen/arch/x86/hvm/vmx/vpmu_...
2013 Dec 13
0
[PATCH v2] pvh: disable MTRR feature on cpuid for Dom0
...ch/x86/traps.c | 2 ++
1 files changed, 2 insertions(+), 0 deletions(-)
diff --git a/xen/arch/x86/traps.c b/xen/arch/x86/traps.c
index 940bc33..3f7a3c7 100644
--- a/xen/arch/x86/traps.c
+++ b/xen/arch/x86/traps.c
@@ -796,6 +796,8 @@ void pv_cpuid(struct cpu_user_regs *regs)
__clear_bit(X86_FEATURE_DS, &d);
__clear_bit(X86_FEATURE_ACC, &d);
__clear_bit(X86_FEATURE_PBE, &d);
+ if ( is_pvh_vcpu(current) )
+ __clear_bit(X86_FEATURE_MTRR, &d);
__clear_bit(X86_FEATURE_DTES64 % 32, &c);
__clear_bit(X86_FEATURE_MWAIT % 32, &...
2007 Aug 08
2
[PATCH] x86-64: syscall/sysenter support for 32-bit apps
.. for both 32-bit apps in 64-bit pv guests and 32on64.
This patch depends on more than just guest_context saved/restored as guest
state during save/restore/migrate (namely the new fields holding callback
addresses).
Since the 32-bit kernel doesn''t make use of syscall (it would be possible to
do so now, when running on a 64-bit hv), the compat mode guest code path for
syscall
2013 Sep 23
11
[PATCH v4 0/4] x86/HVM: miscellaneous improvements
The first and third patches are cleaned up versions of an earlier v3
submission by Yang.
1: Nested VMX: check VMX capability before read VMX related MSRs
2: VMX: clean up capability checks
3: Nested VMX: fix IA32_VMX_CR4_FIXED1 msr emulation
4: x86: make hvm_cpuid() tolerate NULL pointers
Signed-off-by: Jan Beulich <jbeulich@suse.com>
2007 Apr 18
1
[RFC/PATCH LGUEST X86_64 03/13] lguest64 core
plain text document attachment (lguest64.patch)
This is the main core code for the lguest64.
Have fun, and don't hurt the puppies!
Signed-off-by: Steven Rostedt <srostedt@redhat.com>
Signed-off-by: Glauber de Oliveira Costa <glommer@gmail.com>
Cc: Chris Wright <chrisw@sous-sol.org>
Index: work-pv/arch/x86_64/lguest/Makefile
2007 Apr 18
1
[RFC/PATCH LGUEST X86_64 03/13] lguest64 core
plain text document attachment (lguest64.patch)
This is the main core code for the lguest64.
Have fun, and don't hurt the puppies!
Signed-off-by: Steven Rostedt <srostedt@redhat.com>
Signed-off-by: Glauber de Oliveira Costa <glommer@gmail.com>
Cc: Chris Wright <chrisw@sous-sol.org>
Index: work-pv/arch/x86_64/lguest/Makefile
2011 Aug 15
36
expose MWAIT to dom0
...ed_invalid_op(str
__clear_bit(X86_FEATURE_PBE, &d);
__clear_bit(X86_FEATURE_DTES64 % 32, &c);
- if ( !IS_PRIV(current->domain) )
- __clear_bit(X86_FEATURE_MWAIT % 32, &c);
+ __clear_bit(X86_FEATURE_MWAIT % 32, &c);
__clear_bit(X86_FEATURE_DSCPL % 32, &c);
__clear_bit(X86_FEATURE_VMXE % 32, &c);
__clear_bit(X86_FEATURE_SMXE % 32, &c);
[...]
This then brings a problem to Dom0 which thinks underlying CPU
doesn''t report mwait, and thus notify BIOS to use old I/O based method.
Later a trick is integr...
2007 Apr 18
43
[RFC PATCH 00/35] Xen i386 paravirtualization support
Unlike full virtualization in which the virtual machine provides
the same platform interface as running natively on the hardware,
paravirtualization requires modification to the guest operating system
to work with the platform interface provided by the hypervisor.
Xen was designed with performance in mind. Calls to the hypervisor
are minimized, batched if necessary, and non-critical codepaths
2007 Apr 18
43
[RFC PATCH 00/35] Xen i386 paravirtualization support
Unlike full virtualization in which the virtual machine provides
the same platform interface as running natively on the hardware,
paravirtualization requires modification to the guest operating system
to work with the platform interface provided by the hypervisor.
Xen was designed with performance in mind. Calls to the hypervisor
are minimized, batched if necessary, and non-critical codepaths