From: Zhao Liu <zhao1.liu@intel.com>
To: Sean Christopherson <seanjc@google.com>
Cc: Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>,
Dave Hansen <dave.hansen@linux.intel.com>,
x86@kernel.org, "H . Peter Anvin" <hpa@zytor.com>,
Paolo Bonzini <pbonzini@redhat.com>,
kvm@vger.kernel.org, linux-kernel@vger.kernel.org,
Chao Gao <chao.gao@intel.com>, Xudong Hao <xudong.hao@intel.com>
Subject: Re: [PATCH 2/4] KVM: x86: Advertise AMX CPUIDs in subleaf 0x1E.0x1 to userspace
Date: Sun, 25 Jan 2026 15:54:08 +0800 [thread overview]
Message-ID: <aXXMIFNoy7cUu+3o@intel.com> (raw)
In-Reply-To: <aXO4qPQlkqKeW6Sz@google.com>
On Fri, Jan 23, 2026 at 10:06:32AM -0800, Sean Christopherson wrote:
> Date: Fri, 23 Jan 2026 10:06:32 -0800
> From: Sean Christopherson <seanjc@google.com>
> Subject: Re: [PATCH 2/4] KVM: x86: Advertise AMX CPUIDs in subleaf 0x1E.0x1
> to userspace
>
> On Thu, Nov 20, 2025, Zhao Liu wrote:
> > Define and pass AMX CPUIDs (0x1E.0x1) through to userspace.
>
> Similar to the PASSTHROUGH_F() thing in the first patch, these aren't strictly
> being passed through. In practice, they are passed through as of the current
> code base due to the features residing in KVM-only words, but I'd like to avoid
> stating that features are being passed through unless KVM very deliberately wants
> to ignore the kernel.
Good point, thanks for your reminder!
> As before, I'll tweak when applying. Same goes for patches 3 and 4.
Thanks!
-Zhao
next prev parent reply other threads:[~2026-01-25 7:28 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-11-20 5:07 [PATCH 0/4] KVM: x86: Advertise new instruction CPUIDs for Intel Diamond Rapids Zhao Liu
2025-11-20 5:07 ` [PATCH 1/4] KVM: x86: Advertise MOVRS CPUID to userspace Zhao Liu
2026-01-23 18:03 ` Sean Christopherson
2025-11-20 5:07 ` [PATCH 2/4] KVM: x86: Advertise AMX CPUIDs in subleaf 0x1E.0x1 " Zhao Liu
2026-01-23 6:02 ` Xiaoyao Li
2026-01-23 17:53 ` Sean Christopherson
2026-01-23 17:55 ` Sean Christopherson
2026-01-25 7:51 ` Zhao Liu
2026-01-23 18:06 ` Sean Christopherson
2026-01-25 7:54 ` Zhao Liu [this message]
2025-11-20 5:07 ` [PATCH 3/4] KVM: x86: Advertise AVX10.2 CPUID " Zhao Liu
2025-11-20 5:07 ` [PATCH 4/4] KVM: x86: Advertise AVX10_VNNI_INT " Zhao Liu
2025-12-18 17:54 ` [PATCH 0/4] KVM: x86: Advertise new instruction CPUIDs for Intel Diamond Rapids Paolo Bonzini
2026-01-21 1:40 ` Zhao Liu
2026-01-23 6:03 ` Xiaoyao Li
2026-02-04 0:10 ` Sean Christopherson
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