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KVM: MMU: Emulate #PF error code of reserved bits violation

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Detect, indicate, and propagate page faults where reserved bits are set.
Take care to handle the different paging modes, each of which has different
sets of reserved bits.

[avi: fix pte reserved bits for efer.nxe=0]

Signed-off-by: Eddie Dong <eddie.dong@intel.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
This commit is contained in:
Dong, Eddie
2009-03-30 16:21:08 +08:00
committed by Avi Kivity
parent 362c1055e5
commit 82725b20e2
4 changed files with 88 additions and 0 deletions
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10
arch/x86/kvm/x86.c
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@@ -3017,6 +3017,16 @@ struct kvm_cpuid_entry2 *kvm_find_cpuid_entry(struct kvm_vcpu *vcpu,
return best;
}
int cpuid_maxphyaddr(struct kvm_vcpu *vcpu)
{
struct kvm_cpuid_entry2 *best;
best = kvm_find_cpuid_entry(vcpu, 0x80000008, 0);
if (best)
return best->eax & 0xff;
return 36;
}
void kvm_emulate_cpuid(struct kvm_vcpu *vcpu)
{
u32 function, index;