Displaying 5 results from an estimated 5 matches for "cpuid_hypervisor_leav".
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cpuid_hypervisor_leaves
2007 Feb 01
0
[PATCH] hide RDTSCP feature flag from PV guests
...alid_op(str
if ( !IS_PRIV(current->domain) )
clear_bit(X86_FEATURE_MTRR, &d);
}
+ else if ( regs->eax == 0x80000001 )
+ {
+ /* Modify Feature Information. */
+ clear_bit(X86_FEATURE_RDTSCP % 32, &d);
+ }
else
{
(void)cpuid_hypervisor_leaves(regs->eax, &a, &b, &c, &d);
Index: 2007-01-16/xen/include/asm-x86/cpufeature.h
===================================================================
--- 2007-01-16.orig/xen/include/asm-x86/cpufeature.h 2006-04-24 15:28:58.000000000 +0200
+++ 2007-01-16/xen/include/asm-x86/cpufeat...
2011 Jul 04
0
[PATCH] Don''t expose CPUID time leaf when not using PVRDTSCP
...leaf unless
PVRDTSCP is in operation.
Signed-off-by: Paul Durrant <paul.durrant@citrix.com>
diff -r 7e4404a8f5f9 -r 6ce0dbc6f955 xen/arch/x86/traps.c
--- a/xen/arch/x86/traps.c Mon Jul 04 07:57:32 2011 +0100
+++ b/xen/arch/x86/traps.c Mon Jul 04 17:17:27 2011 +0100
@@ -704,15 +704,19 @@ int cpuid_hypervisor_leaves( uint32_t id
struct domain *d = current->domain;
/* Optionally shift out of the way of Viridian architectural leaves. */
uint32_t base = is_viridian_domain(d) ? 0x40000100 : 0x40000000;
+ uint32_t limit;
idx -= base;
- if ( idx > 3 )
+
+ limit = (d->arch.t...
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 Aug 09
0
[PATCH] x86/hvm: miscellaneous CPUID handling changes
...c
===================================================================
--- 2007-08-08.orig/xen/arch/x86/hvm/hvm.c 2007-08-06 15:08:40.000000000 +0200
+++ 2007-08-08/xen/arch/x86/hvm/hvm.c 2007-08-08 11:45:25.000000000 +0200
@@ -614,37 +614,38 @@ void hvm_cpuid(unsigned int input, unsig
{
if ( !cpuid_hypervisor_leaves(input, eax, ebx, ecx, edx) )
{
+ struct vcpu *v = current;
+
cpuid(input, eax, ebx, ecx, edx);
- if ( input == 0x00000001 )
+ switch ( input )
{
- struct vcpu *v = current;
-
- clear_bit(X86_FEATURE_MWAIT & 31, ecx);
+...
2013 Sep 23
57
[PATCH RFC v13 00/20] Introduce PVH domU support
This patch series is a reworking of a series developed by Mukesh
Rathor at Oracle. The entirety of the design and development was done
by him; I have only reworked, reorganized, and simplified things in a
way that I think makes more sense. The vast majority of the credit
for this effort therefore goes to him. This version is labelled v13
because it is based on his most recent series, v11.