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KVM: SVM: Report emulated SVM features to userspace

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This patch implements the reporting of the emulated SVM
features to userspace instead of the real hardware
capabilities. Every real hardware capability needs emulation
in nested svm so the old behavior was broken.

Cc: stable@kernel.org
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
This commit is contained in:
Joerg Roedel 2010-04-22 12:33:12 +02:00 committed by Avi Kivity
parent d4330ef2fb
commit c2c63a4939
1 changed files with 10 additions and 0 deletions
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10
arch/x86/kvm/svm.c
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@ -3154,6 +3154,16 @@ static void svm_cpuid_update(struct kvm_vcpu *vcpu)
static void svm_set_supported_cpuid(u32 func, struct kvm_cpuid_entry2 *entry)
{
switch (func) {
case 0x8000000A:
entry->eax = 1; /* SVM revision 1 */
entry->ebx = 8; /* Lets support 8 ASIDs in case we add proper
ASID emulation to nested SVM */
entry->ecx = 0; /* Reserved */
entry->edx = 0; /* Do not support any additional features */
break;
}
}
static const struct trace_print_flags svm_exit_reasons_str[] = {