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[Qemu-devel] [PATCH 4/7] Enable XSAVE related CPUID
From: |
Marcelo Tosatti |
Subject: |
[Qemu-devel] [PATCH 4/7] Enable XSAVE related CPUID |
Date: |
Mon, 28 Jun 2010 13:14:11 -0300 |
From: Sheng Yang <address@hidden>
We can support it in KVM now. The 0xd leaf is queried from KVM.
Signed-off-by: Sheng Yang <address@hidden>
Signed-off-by: Marcelo Tosatti <address@hidden>
---
target-i386/cpuid.c | 21 +++++++++++++++++++++
1 files changed, 21 insertions(+), 0 deletions(-)
diff --git a/target-i386/cpuid.c b/target-i386/cpuid.c
index fe0e6b2..83057bd 100644
--- a/target-i386/cpuid.c
+++ b/target-i386/cpuid.c
@@ -1087,6 +1087,27 @@ void cpu_x86_cpuid(CPUX86State *env, uint32_t index,
uint32_t count,
*ecx = 0;
*edx = 0;
break;
+ case 0xD:
+ /* Processor Extended State */
+ if (!(env->cpuid_ext_features & CPUID_EXT_XSAVE)) {
+ *eax = 0;
+ *ebx = 0;
+ *ecx = 0;
+ *edx = 0;
+ break;
+ }
+ if (kvm_enabled()) {
+ *eax = kvm_arch_get_supported_cpuid(env, 0xd, count, R_EAX);
+ *ebx = kvm_arch_get_supported_cpuid(env, 0xd, count, R_EBX);
+ *ecx = kvm_arch_get_supported_cpuid(env, 0xd, count, R_ECX);
+ *edx = kvm_arch_get_supported_cpuid(env, 0xd, count, R_EDX);
+ } else {
+ *eax = 0;
+ *ebx = 0;
+ *ecx = 0;
+ *edx = 0;
+ }
+ break;
case 0x80000000:
*eax = env->cpuid_xlevel;
*ebx = env->cpuid_vendor1;
--
1.6.6.1
- [Qemu-devel] [PATCH 0/7] [PULL] qemu-kvm.git uq/master queue, Marcelo Tosatti, 2010/06/28
- [Qemu-devel] [PATCH 4/7] Enable XSAVE related CPUID,
Marcelo Tosatti <=
- [Qemu-devel] [PATCH 7/7] kvm: Fix cpu_is_bsp() compilation warning, Marcelo Tosatti, 2010/06/28
- [Qemu-devel] [PATCH 6/7] kvm: init mp_state, Marcelo Tosatti, 2010/06/28
- [Qemu-devel] [PATCH 3/7] kvm: Extend kvm_arch_get_supported_cpuid() to support index, Marcelo Tosatti, 2010/06/28
- [Qemu-devel] [PATCH 1/7] kvm: Switch kvm_update_guest_debug to run_on_cpu, Marcelo Tosatti, 2010/06/28
- [Qemu-devel] [PATCH 2/7] fix CPUID vendor override, Marcelo Tosatti, 2010/06/28
- [Qemu-devel] [PATCH 5/7] kvm: Enable XSAVE live migration support, Marcelo Tosatti, 2010/06/28
- Re: [Qemu-devel] [PATCH 0/7] [PULL] qemu-kvm.git uq/master queue, Anthony Liguori, 2010/06/28