Re: [PATCH v2 0/2] KVM: nSVM: Handle L2 clearing EFER.SVME properly

[Sean Christopherson]

On Mon, 09 Feb 2026 19:51:40 +0000, Yosry Ahmed wrote:
> Add more graceful handling of L2 clearing EFER.SVME without L1
> interception, which is architecturally undefined. Shutdown L1 instead of
> running it with corrupted L2 state, and add a test to verify the new
> behavior.
> 
> I did not CC stable on patch 1 because it's not technically a KVM bug,
> but it would be nice to have it backported. Leaving the decision to
> Sean.
> 
> [...]

Applied to kvm-x86 nested, with the discussed fixup.  Thanks!

[1/2] KVM: SVM: Triple fault L1 on unintercepted EFER.SVME clear by L2
      https://github.com/kvm-x86/linux/commit/cdc69269b18a
[2/2] KVM: selftests: Add a test for L2 clearing EFER.SVME without intercept
      https://github.com/kvm-x86/linux/commit/3900e56eb184

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https://github.com/kvm-x86/linux/tree/next