From: Sean Christopherson <seanjc@google.com>
To: Tom Lendacky <thomas.lendacky@amd.com>
Cc: John Allen <john.allen@amd.com>,
kvm@vger.kernel.org, weijiang.yang@intel.com,
rick.p.edgecombe@intel.com, bp@alien8.de, pbonzini@redhat.com,
mlevitsk@redhat.com, linux-kernel@vger.kernel.org,
x86@kernel.org
Subject: Re: [PATCH v2 6/9] KVM: SVM: Add MSR_IA32_XSS to the GHCB for hypervisor kernel
Date: Thu, 2 May 2024 11:34:50 -0700 [thread overview]
Message-ID: <ZjPcytxDWHKLYNsU@google.com> (raw)
In-Reply-To: <9b05e2d7-ac1c-e60f-0f6e-f4befea06334@amd.com>
On Thu, May 02, 2024, Tom Lendacky wrote:
> The hypervisor side could be optimized to compare the value and only update
> the CPUID runtime if those values are different.
Heh, this is exactly the thought I had around dinner time yesterday :-)
next prev parent reply other threads:[~2024-05-02 18:34 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-02-26 21:32 [PATCH v2 0/9] SVM guest shadow stack support John Allen
2024-02-26 21:32 ` [PATCH v2 1/9] x86/boot: Move boot_*msr helpers to asm/shared/msr.h John Allen
2024-02-27 19:45 ` Borislav Petkov
2024-02-26 21:32 ` [PATCH v2 2/9] KVM: x86: SVM: Emulate reads and writes to shadow stack MSRs John Allen
2024-02-26 21:32 ` [PATCH v2 3/9] KVM: x86: SVM: Update dump_vmcb with shadow stack save area additions John Allen
2024-02-26 21:32 ` [PATCH v2 4/9] KVM: x86: SVM: Pass through shadow stack MSRs John Allen
2024-02-26 21:32 ` [PATCH v2 5/9] KVM: SVM: Rename vmplX_ssp -> plX_ssp John Allen
2024-02-27 18:14 ` Sean Christopherson
2024-02-27 19:15 ` Tom Lendacky
2024-02-27 19:19 ` John Allen
2024-02-27 19:23 ` Sean Christopherson
2024-02-27 19:25 ` John Allen
2024-02-26 21:32 ` [PATCH v2 6/9] KVM: SVM: Add MSR_IA32_XSS to the GHCB for hypervisor kernel John Allen
2024-05-01 23:43 ` Sean Christopherson
2024-05-02 17:46 ` Tom Lendacky
2024-05-02 18:34 ` Sean Christopherson [this message]
2024-02-26 21:32 ` [PATCH v2 7/9] x86/sev-es: Include XSS value in GHCB CPUID request John Allen
2024-02-27 19:47 ` Borislav Petkov
2024-02-26 21:32 ` [PATCH v2 8/9] KVM: SVM: Use KVM-governed features to track SHSTK John Allen
2024-02-26 21:32 ` [PATCH v2 9/9] KVM: SVM: Add CET features to supported_xss John Allen
2024-05-01 23:47 ` Sean Christopherson
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