From: Sean Christopherson <seanjc@google.com>
To: Sean Christopherson <seanjc@google.com>,
Paolo Bonzini <pbonzini@redhat.com>
Cc: kvm@vger.kernel.org, linux-kernel@vger.kernel.org,
Babu Moger <babu.moger@amd.com>,
Jim Mattson <jmattson@google.com>
Subject: Re: [PATCH] KVM: SVM: Inject #GP if memory operand for INVPCID is non-canonical
Date: Fri, 28 Feb 2025 15:40:32 -0800 [thread overview]
Message-ID: <174076298281.3738096.14978008039669090737.b4-ty@google.com> (raw)
In-Reply-To: <20250224174522.2363400-1-seanjc@google.com>
On Mon, 24 Feb 2025 09:45:22 -0800, Sean Christopherson wrote:
> Inject a #GP if the memory operand received by INVCPID is non-canonical.
> The APM clearly states that the intercept takes priority over all #GP
> checks except the CPL0 restriction.
>
> Of course, that begs the question of how the CPU generates a linear
> address in the first place. Tracing confirms that EXITINFO1 does hold a
> linear address, at least for 64-bit mode guests (hooray GS prefix).
> Unfortunately, the APM says absolutely nothing about the EXITINFO fields
> for INVPCID intercepts, so it's not at all clear what's supposed to
> happen.
>
> [...]
Applied to kvm-x86 svm, thanks!
[1/1] KVM: SVM: Inject #GP if memory operand for INVPCID is non-canonical
https://github.com/kvm-x86/linux/commit/d4b69c3d1471
--
https://github.com/kvm-x86/linux/tree/next
prev parent reply other threads:[~2025-02-28 23:41 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-02-24 17:45 Sean Christopherson
2025-02-28 23:40 ` Sean Christopherson [this message]
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