diff options
| author | Ladi Prosek <lprosek@redhat.com> | 2017-03-31 10:19:26 +0200 |
|---|---|---|
| committer | Radim Krčmář <rkrcmar@redhat.com> | 2017-04-04 16:11:06 +0200 |
| commit | ab007cc94ff9d82f5a8db8363b3becbd946e58cf (patch) | |
| tree | 8a090b38f4911a71ff89986cdf513c2dd94aad41 /arch/x86 | |
| parent | Merge tag 'kvm-s390-master-4.11-1' of git://git.kernel.org/pub/scm/linux/kern... (diff) | |
| download | linux-ab007cc94ff9d82f5a8db8363b3becbd946e58cf.tar.xz linux-ab007cc94ff9d82f5a8db8363b3becbd946e58cf.zip | |
KVM: nVMX: do not leak PML full vmexit to L1
The PML feature is not exposed to guests so we should not be forwarding
the vmexit either.
This commit fixes BSOD 0x20001 (HYPERVISOR_ERROR) when running Hyper-V
enabled Windows Server 2016 in L1 on hardware that supports PML.
Fixes: 843e4330573c ("KVM: VMX: Add PML support in VMX")
Signed-off-by: Ladi Prosek <lprosek@redhat.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
Diffstat (limited to 'arch/x86')
| -rw-r--r-- | arch/x86/kvm/vmx.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c index 2ee00dbbbd51..605183291069 100644 --- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -8198,6 +8198,9 @@ static bool nested_vmx_exit_handled(struct kvm_vcpu *vcpu) return nested_cpu_has2(vmcs12, SECONDARY_EXEC_XSAVES); case EXIT_REASON_PREEMPTION_TIMER: return false; + case EXIT_REASON_PML_FULL: + /* We don't expose PML support to L1. */ + return false; default: return true; } |