Messages in this thread | | | From | Sean Christopherson <> | Subject | [PATCH 0/2] KVM: VMX: x2APIC + APICV MSR fix and cleanup | Date | Mon, 5 Oct 2020 12:55:30 -0700 |
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Patch 1 is an unofficial patch from Peter to fix x2APIC MSR interception on non-APICV systems. As Peter suggested, it really should be squashed with commit 3eb900173c71 ("KVM: x86: VMX: Prevent MSR passthrough when MSR access is denied"). Without the fix, KVM is completely busted on non-APICV systems.
Patch 2 is a cleanup of sorts to revert back to the pre-filtering approach of initializing the x2APIC MSR bitmaps for APICV.
Note, I haven't tested on an APICV system. My APICV system appears to have crashed over the weekend and I haven't yet journeyed back to the lab to kick it.
Peter Xu (1): KVM: VMX: Fix x2APIC MSR intercept handling on !APICV platforms
Sean Christopherson (1): KVM: VMX: Ignore userspace MSR filters for x2APIC when APICV is enabled
arch/x86/kvm/vmx/vmx.c | 45 ++++++++++++++++++++++++++++-------------- 1 file changed, 30 insertions(+), 15 deletions(-)
-- 2.28.0
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