From: Zhao Liu <zhao1.liu@intel.com>
To: Babu Moger <babu.moger@amd.com>
Cc: pbonzini@redhat.com, qemu-devel@nongnu.org, kvm@vger.kernel.org,
davydov-max@yandex-team.ru
Subject: Re: [PATCH v5 4/6] target/i386: Add feature that indicates WRMSR to BASE reg is non-serializing
Date: Thu, 20 Feb 2025 20:00:20 +0800 [thread overview]
Message-ID: <Z7cZVNsZ/PCXA1+7@intel.com> (raw)
In-Reply-To: <ad5bf4dde8ab637e9c5c24d7391ad36c7aafd8b7.1738869208.git.babu.moger@amd.com>
On Thu, Feb 06, 2025 at 01:28:37PM -0600, Babu Moger wrote:
> Date: Thu, 6 Feb 2025 13:28:37 -0600
> From: Babu Moger <babu.moger@amd.com>
> Subject: [PATCH v5 4/6] target/i386: Add feature that indicates WRMSR to
> BASE reg is non-serializing
> X-Mailer: git-send-email 2.34.1
>
> Add the CPUID bit indicates that a WRMSR to MSR_FS_BASE, MSR_GS_BASE, or
> MSR_KERNEL_GS_BASE is non-serializing.
>
> CPUID_Fn80000021_EAX
> Bit Feature description
> 1 FsGsKernelGsBaseNonSerializing.
> WRMSR to FS_BASE, GS_BASE and KernelGSbase are non-serializing.
>
> Link: https://www.amd.com/content/dam/amd/en/documents/epyc-technical-docs/programmer-references/57238.zip
> Signed-off-by: Babu Moger <babu.moger@amd.com>
> Reviewed-by: Maksim Davydov <davydov-max@yandex-team.ru>
> ---
> target/i386/cpu.c | 2 +-
> target/i386/cpu.h | 2 ++
> 2 files changed, 3 insertions(+), 1 deletion(-)
Reviewed-by: Zhao Liu <zhao1.liu@intel.com>
next prev parent reply other threads:[~2025-02-20 11:41 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-02-06 19:28 [PATCH v5 0/6] target/i386: Update EPYC CPU models for Cache property, RAS, SVM feature and add EPYC-Turin CPU model Babu Moger
2025-02-06 19:28 ` [PATCH v5 1/6] target/i386: Update EPYC CPU model for Cache property, RAS, SVM feature bits Babu Moger
2025-02-20 10:59 ` Zhao Liu
2025-02-25 17:01 ` John Allen
2025-02-26 20:28 ` Moger, Babu
2025-02-27 6:42 ` Zhao Liu
2025-02-06 19:28 ` [PATCH v5 2/6] target/i386: Update EPYC-Rome " Babu Moger
2025-02-20 11:18 ` Zhao Liu
2025-02-21 0:41 ` Moger, Babu
2025-02-06 19:28 ` [PATCH v5 3/6] target/i386: Update EPYC-Milan " Babu Moger
2025-02-20 11:26 ` Zhao Liu
2025-02-21 0:43 ` Moger, Babu
2025-02-06 19:28 ` [PATCH v5 4/6] target/i386: Add feature that indicates WRMSR to BASE reg is non-serializing Babu Moger
2025-02-20 12:00 ` Zhao Liu [this message]
2025-02-21 0:45 ` Moger, Babu
2025-02-06 19:28 ` [PATCH v5 5/6] target/i386: Update EPYC-Genoa for Cache property, perfmon-v2, RAS and SVM feature bits Babu Moger
2025-02-20 12:05 ` Zhao Liu
2025-02-21 0:46 ` Moger, Babu
2025-02-06 19:28 ` [PATCH v5 6/6] target/i386: Add support for EPYC-Turin model Babu Moger
2025-02-20 12:11 ` Zhao Liu
2025-02-21 0:48 ` Moger, Babu
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