Re: [PATCH] KVM: SVM: Always intercept ICEBP, add INT1 selftests
Sean Christopherson <[email protected]> Fri, 31 Jul 2026 13:10:11 -0700
| Newsgroups | org.kernel.vger.linux-kselftest,org.kernel.vger.kvm,org.kernel.vger.linux-kernel |
|---|---|
| Message-ID | <[email protected]> |
On Thu, 07 May 2026 12:22:24 +0100, David Woodhouse wrote:
> ICEBP (INT1, opcode 0xF1) generates a #DB that is architecturally a
> trap, but on SVM it was not always intercepted. Unconditionally
> intercept ICEBP on SVM to match VMX behaviour and ensure correct
> event delivery semantics.
>
> Add two selftests exercising ICEBP:
>
> [...]
Applied the KVM change to kvm-x86 svm, but omitted the selftests, at least for
now.
[1/1] KVM: SVM: Always intercept ICEBP, add INT1 selftests
https://github.com/kvm-x86/linux/commit/ec9a16c6aeba
--
https://github.com/kvm-x86/linux/tree/next