linux-kernel - Re: [GIT PULL] KVM: x86: SVM changes for 6.7

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Message-ID: <CABgObfarUg_qsGBnDyHGEXdazq8NPuzjpwdnHbDE6o5jOOou8g@mail.gmail.com>
Date:   Tue, 31 Oct 2023 15:55:17 +0100
From:   Paolo Bonzini <pbonzini@...hat.com>
To:     Sean Christopherson <seanjc@...gle.com>
Cc:     kvm@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [GIT PULL] KVM: x86: SVM changes for 6.7

On Fri, Oct 27, 2023 at 10:49 PM Sean Christopherson <seanjc@...gle.com> wrote:
>
> An enhancement to help userspace deal with SEV-ES guest crashes, and cleanups
> related to not being able to do "skip" emulation for SEV guests.
>
> The following changes since commit 5804c19b80bf625c6a9925317f845e497434d6d3:
>
>   Merge tag 'kvm-riscv-fixes-6.6-1' of https://github.com/kvm-riscv/linux into HEAD (2023-09-23 05:35:55 -0400)
>
> are available in the Git repository at:
>
>   https://github.com/kvm-x86/linux.git tags/kvm-x86-svm-6.7
>
> for you to fetch changes up to 00682995409696866fe43984c74c8688bdf8f0a5:
>
>   KVM: SVM: Treat all "skip" emulation for SEV guests as outright failures (2023-10-04 15:08:53 -0700)

Pulled, thanks.

Paolo

> ----------------------------------------------------------------
> KVM SVM changes for 6.7:
>
>  - Report KVM_EXIT_SHUTDOWN instead of EINVAL if KVM intercepts SHUTDOWN while
>    running an SEV-ES guest.
>
>  - Clean up handling "failures" when KVM detects it can't emulate the "skip"
>    action for an instruction that has already been partially emulated.  Drop a
>    hack in the SVM code that was fudging around the emulator code not giving
>    SVM enough information to do the right thing.
>
> ----------------------------------------------------------------
> Peter Gonda (1):
>       KVM: SVM: Update SEV-ES shutdown intercepts with more metadata
>
> Sean Christopherson (2):
>       KVM: x86: Refactor can_emulate_instruction() return to be more expressive
>       KVM: SVM: Treat all "skip" emulation for SEV guests as outright failures
>
>  arch/x86/include/asm/kvm-x86-ops.h |  2 +-
>  arch/x86/include/asm/kvm_host.h    |  4 +--
>  arch/x86/kvm/svm/svm.c             | 50 ++++++++++++++++----------------------
>  arch/x86/kvm/vmx/vmx.c             | 12 ++++-----
>  arch/x86/kvm/x86.c                 | 22 +++++++++++------
>  5 files changed, 45 insertions(+), 45 deletions(-)
>