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[Qemu-devel] [PATCH v3 16/17] target-i386: Use Hypervisor leaf extra in
From: |
Don Slutz |
Subject: |
[Qemu-devel] [PATCH v3 16/17] target-i386: Use Hypervisor leaf extra in -machine pc, accel=kvm. |
Date: |
Mon, 17 Sep 2012 10:01:06 -0400 |
Signed-off-by: Don Slutz <address@hidden>
---
target-i386/kvm.c | 19 +++++++++++++++++++
1 files changed, 19 insertions(+), 0 deletions(-)
diff --git a/target-i386/kvm.c b/target-i386/kvm.c
index b8789f2..17c72bc 100644
--- a/target-i386/kvm.c
+++ b/target-i386/kvm.c
@@ -454,6 +454,25 @@ int kvm_arch_init_vcpu(CPUX86State *env)
c->ebx = signature[0];
c->ecx = signature[1];
c->edx = signature[2];
+ } else if (env->cpuid_hv_level > 0) {
+ for (i = KVM_CPUID_FEATURES + 1; i <= env->cpuid_hv_level; i++) {
+ c = &cpuid_data.entries[cpuid_i++];
+ memset(c, 0, sizeof(*c));
+ c->function = i;
+ if (i == env->cpuid_hv_extra) {
+ c->eax = env->cpuid_hv_extra_a;
+ c->ebx = env->cpuid_hv_extra_b;
+ }
+ }
+
+ c = &cpuid_data.entries[cpuid_i++];
+ memset(c, 0, sizeof(*c));
+ c->function = KVM_CPUID_SIGNATURE_NEXT;
+ memcpy(signature, "KVMKVMKVM\0\0\0", 12);
+ c->eax = 0;
+ c->ebx = signature[0];
+ c->ecx = signature[1];
+ c->edx = signature[2];
}
has_msr_async_pf_en = c->eax & (1 << KVM_FEATURE_ASYNC_PF);
--
1.7.1