KVM: x86: Advertise new instruction CPUIDs for Intel Diamond Rapids [LWN.net]

From:		Zhao Liu <zhao1.liu-AT-intel.com>
To:		Thomas Gleixner <tglx-AT-linutronix.de>, Ingo Molnar <mingo-AT-redhat.com>, Borislav Petkov <bp-AT-alien8.de>, Dave Hansen <dave.hansen-AT-linux.intel.com>, x86-AT-kernel.org, "H . Peter Anvin" <hpa-AT-zytor.com>, Paolo Bonzini <pbonzini-AT-redhat.com>, Sean Christopherson <seanjc-AT-google.com>, kvm-AT-vger.kernel.org, linux-kernel-AT-vger.kernel.org
Subject:		[PATCH 0/4] KVM: x86: Advertise new instruction CPUIDs for Intel Diamond Rapids
Date:		Thu, 20 Nov 2025 13:07:16 +0800
Message-ID:		<20251120050720.931449-1-zhao1.liu@intel.com>
Cc:		Chao Gao <chao.gao-AT-intel.com>, Zhao Liu <zhao1.liu-AT-intel.com>
Archive-link:		Article

Hi,

This series advertises new instruction CPUIDs to userspace, which are
supported by Intel Diamond Rapids platform.

I've attached the spec link for each (family of) instruction in each
patch. Since the instructions included in this series don't require
additional enabling work, pass them through to guests directly.

This series is based on the master branch at the commit 23cb64fb7625
("Merge tag 'soc-fixes-6.18-3' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc").

Thanks for your review!

Best Regards,
Zhao
---
Zhao Liu (4):
  KVM: x86: Advertise MOVRS CPUID to userspace
  KVM: x86: Advertise AMX CPUIDs in subleaf 0x1E.0x1 to userspace
  KVM: x86: Advertise AVX10.2 CPUID to userspace
  KVM: x86: Advertise AVX10_VNNI_INT CPUID to userspace

 arch/x86/include/asm/cpufeatures.h |  1 +
 arch/x86/include/asm/kvm_host.h    |  2 ++
 arch/x86/kvm/cpuid.c               | 46 ++++++++++++++++++++++++++++--
 arch/x86/kvm/reverse_cpuid.h       | 15 ++++++++++
 4 files changed, 62 insertions(+), 2 deletions(-)

-- 
2.34.1