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From: Xin Li <xin3.li@intel.com>
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Subject: [PATCH v12 02/37] x86/opcode: Add the WRMSRNS instruction to the x86
opcode map
Date: Mon, 2 Oct 2023 23:24:23 -0700
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| Series |
x86: enable FRED for x86-64
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Commit Message
Li, Xin3
Oct. 3, 2023, 6:24 a.m. UTC
Add the opcode used by WRMSRNS, which is the non-serializing version of WRMSR and may replace it to improve performance, to the x86 opcode map. Tested-by: Shan Kang <shan.kang@intel.com> Signed-off-by: Xin Li <xin3.li@intel.com> Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org> --- arch/x86/lib/x86-opcode-map.txt | 2 +- tools/arch/x86/lib/x86-opcode-map.txt | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-)
Comments
> Add the opcode used by WRMSRNS, which is the non-serializing version of > WRMSR and may replace it to improve performance, to the x86 opcode map. > > Tested-by: Shan Kang <shan.kang@intel.com> > Signed-off-by: Xin Li <xin3.li@intel.com> > Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org> Hi Masami, Boris prefers to merge the first 3 patches into one: https://lore.kernel.org/lkml/20231108123647.GBZUuA31zntox0W0gu@fat_crate.local/#t So I'm thinking could you please also ack the other 2 patches (1st and 3rd of this patch set)? Thus I can keep your acked-by 😊 Thanks! Xin > --- > arch/x86/lib/x86-opcode-map.txt | 2 +- > tools/arch/x86/lib/x86-opcode-map.txt | 2 +- > 2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/x86/lib/x86-opcode-map.txt b/arch/x86/lib/x86-opcode-map.txt index 5168ee0360b2..1efe1d9bf5ce 100644 --- a/arch/x86/lib/x86-opcode-map.txt +++ b/arch/x86/lib/x86-opcode-map.txt @@ -1051,7 +1051,7 @@ GrpTable: Grp6 EndTable GrpTable: Grp7 -0: SGDT Ms | VMCALL (001),(11B) | VMLAUNCH (010),(11B) | VMRESUME (011),(11B) | VMXOFF (100),(11B) | PCONFIG (101),(11B) | ENCLV (000),(11B) +0: SGDT Ms | VMCALL (001),(11B) | VMLAUNCH (010),(11B) | VMRESUME (011),(11B) | VMXOFF (100),(11B) | PCONFIG (101),(11B) | ENCLV (000),(11B) | WRMSRNS (110),(11B) 1: SIDT Ms | MONITOR (000),(11B) | MWAIT (001),(11B) | CLAC (010),(11B) | STAC (011),(11B) | ENCLS (111),(11B) 2: LGDT Ms | XGETBV (000),(11B) | XSETBV (001),(11B) | VMFUNC (100),(11B) | XEND (101)(11B) | XTEST (110)(11B) | ENCLU (111),(11B) 3: LIDT Ms diff --git a/tools/arch/x86/lib/x86-opcode-map.txt b/tools/arch/x86/lib/x86-opcode-map.txt index 5168ee0360b2..1efe1d9bf5ce 100644 --- a/tools/arch/x86/lib/x86-opcode-map.txt +++ b/tools/arch/x86/lib/x86-opcode-map.txt @@ -1051,7 +1051,7 @@ GrpTable: Grp6 EndTable GrpTable: Grp7 -0: SGDT Ms | VMCALL (001),(11B) | VMLAUNCH (010),(11B) | VMRESUME (011),(11B) | VMXOFF (100),(11B) | PCONFIG (101),(11B) | ENCLV (000),(11B) +0: SGDT Ms | VMCALL (001),(11B) | VMLAUNCH (010),(11B) | VMRESUME (011),(11B) | VMXOFF (100),(11B) | PCONFIG (101),(11B) | ENCLV (000),(11B) | WRMSRNS (110),(11B) 1: SIDT Ms | MONITOR (000),(11B) | MWAIT (001),(11B) | CLAC (010),(11B) | STAC (011),(11B) | ENCLS (111),(11B) 2: LGDT Ms | XGETBV (000),(11B) | XSETBV (001),(11B) | VMFUNC (100),(11B) | XEND (101)(11B) | XTEST (110)(11B) | ENCLU (111),(11B) 3: LIDT Ms