Re: [PATCHv4 00/11] SVM: virtual NMI

Sean Christopherson
2023-03-23T00:57:16Z

On Mon, Feb 27, 2023, Santosh Shukla wrote:
> Maxim Levitsky (2):
> KVM: nSVM: Raise event on nested VM exit if L1 doesn't intercept IRQs
> KVM: SVM: add wrappers to enable/disable IRET interception
>
> Santosh Shukla (6):
> KVM: nSVM: Don't sync vmcb02 V_IRQ back to vmcb12 if KVM (L0) is
> intercepting VINTR
> KVM: nSVM: Disable intercept of VINTR if saved RFLAG.IF is 0
> x86/cpu: Add CPUID feature bit for VNMI
> KVM: SVM: Add VNMI bit definition
> KVM: x86: add support for delayed virtual NMI injection interface
> KVM: nSVM: implement support for nested VNMI
>
> Sean Christopherson (3):
> KVM: x86: Raise an event request when processing NMIs if an NMI is
> pending
> KVM: x86: Tweak the code and comment related to handling concurrent
> NMIs
> KVM: x86: Save/restore all NMIs when multiple NMIs are pending
>
> arch/x86/include/asm/cpufeatures.h | 1 +
> arch/x86/include/asm/kvm-x86-ops.h | 2 +
> arch/x86/include/asm/kvm_host.h | 11 ++-
> arch/x86/include/asm/svm.h | 9 ++
> arch/x86/kvm/svm/nested.c | 94 +++++++++++++++---
> arch/x86/kvm/svm/svm.c | 152 +++++++++++++++++++++++------
> arch/x86/kvm/svm/svm.h | 28 ++++++
> arch/x86/kvm/x86.c | 46 +++++++--
> 8 files changed, 289 insertions(+), 54 deletions(-)

Code looks good overall, I'll fixup the changelogs and comments myself. I just
need to run it through my usual test flow, which I should get done tomorrow.