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| author | Joerg Roedel | 2010-08-02 16:46:45 +0200 |
|---|---|---|
| committer | Avi Kivity | 2010-10-24 10:50:32 +0200 |
| commit | dbe7758482a870f30a86bdeefebf4fc260afef11 (patch) | |
| tree | 72d6589e48193905a226175db42602d921f9a75a /arch/x86/kvm/svm.c | |
| parent | KVM: SVM: Check for nested vmrun intercept before emulating vmrun (diff) | |
| download | kernel-qcow2-linux-dbe7758482a870f30a86bdeefebf4fc260afef11.tar.gz kernel-qcow2-linux-dbe7758482a870f30a86bdeefebf4fc260afef11.tar.xz kernel-qcow2-linux-dbe7758482a870f30a86bdeefebf4fc260afef11.zip | |
KVM: SVM: Check for asid != 0 on nested vmrun
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>
Diffstat (limited to 'arch/x86/kvm/svm.c')
| -rw-r--r-- | arch/x86/kvm/svm.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c index a0e5c7e26104..af5b9ea51965 100644 --- a/arch/x86/kvm/svm.c +++ b/arch/x86/kvm/svm.c @@ -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; } |