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KVM: SVM: Check for asid != 0 on nested vmrun

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This patch lets a nested vmrun fail if the L1 hypervisor
left the asid zero. This fixes the asid_zero unit test.

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
This commit is contained in:
Joerg Roedel 2010-08-02 16:46:45 +02:00 committed by Avi Kivity
parent 52c65a30a5
commit dbe7758482
1 changed files with 3 additions and 0 deletions
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arch/x86/kvm/svm.c
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@ -2019,6 +2019,9 @@ static bool nested_vmcb_checks(struct vmcb *vmcb)
if ((vmcb->control.intercept & (1ULL << INTERCEPT_VMRUN)) == 0)
return false;
if (vmcb->control.asid == 0)
return false;
return true;
}