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@xxxxxxx> > 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@xxxxxxx> > Reviewed-by: Maksim Davydov <davydov-max@xxxxxxxxxxxxxx> > --- > target/i386/cpu.c | 2 +- > target/i386/cpu.h | 2 ++ > 2 files changed, 3 insertions(+), 1 deletion(-) Reviewed-by: Zhao Liu <zhao1.liu@xxxxxxxxx>
