Messages in this thread | | | Date | Thu, 11 Nov 2021 15:06:13 +0100 | Subject | Re: [PATCH v4 0/4] KVM: x86: MSR filtering and related fixes | From | Paolo Bonzini <> |
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On 11/9/21 02:30, Sean Christopherson wrote: > Fix a nVMX MSR interception check bug, fix two intertwined nVMX bugs bugs > related to MSR filtering (one directly, one indirectly), and additional > cleanup on top. The main SRCU fix from the original series was merged, > but these got left behind (luckily, becaues the main fix was buggy). > > Side topic, getting a VM to actually barf on RDMSR(SPEC_CTRL) is comically > difficult: -spec-ctrl,-stibp,-ssbd,-ibrs-all,-ibpb,-amd-stibp,-amd-ssbd. > QEMU and KVM really, really want to expose SPEC_CTRL to the guest :-) > > v4: > - Rebase to 0d7d84498fb4 ("KVM: x86: SGX must obey the ... protocol") > - Fix inverted passthrough check for SPEC_CTRL. [Vitaly] > - Add patch to fix MSR bitmap enabling check in helper. > > v3: > - Rebase to 9f6090b09d66 ("KVM: MMU: make spte .... in make_spte") > > v2: > - https://lkml.kernel.org/r/20210318224310.3274160-1-seanjc@google.com > - Make the macro insanity slightly less insane. [Paolo] > > v1: https://lkml.kernel.org/r/20210316184436.2544875-1-seanjc@google.com > > Sean Christopherson (4): > KVM: nVMX: Query current VMCS when determining if MSR bitmaps are in > use > KVM: nVMX: Handle dynamic MSR intercept toggling > KVM: VMX: Macrofy the MSR bitmap getters and setters > KVM: nVMX: Clean up x2APIC MSR handling for L2 > > arch/x86/kvm/vmx/nested.c | 164 +++++++++++++++----------------------- > arch/x86/kvm/vmx/vmx.c | 61 ++------------ > arch/x86/kvm/vmx/vmx.h | 28 +++++++ > 3 files changed, 97 insertions(+), 156 deletions(-) >
Queued, thanks.
Paolo
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