Re: [PATCH v9 05/36] x86/opcode: Add ERETU, ERETS instructions to x86-opcode-map

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On Sun, 30 Jul 2023 23:32:46 -0700
Xin Li <xin3.li@xxxxxxxxx> wrote:

> From: "H. Peter Anvin (Intel)" <hpa@xxxxxxxxx>
> 
> Add instruction opcodes used by FRED ERETU/ERETS to x86-opcode-map.
> 
> Opcode numbers are per FRED spec v5.0.
> 
> Signed-off-by: H. Peter Anvin (Intel) <hpa@xxxxxxxxx>
> Tested-by: Shan Kang <shan.kang@xxxxxxxxx>
> Signed-off-by: Xin Li <xin3.li@xxxxxxxxx>

This looks good to me. (ERETS has the opcode F2 0F 01 CA, ERETU
has the opcode F3 0F 01 CA)

Reviewed-by: Masami Hiramatsu (Google) <mhiramat@xxxxxxxxxx>

Thank you,

> ---
>  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..7a269e269dc0 100644
> --- a/arch/x86/lib/x86-opcode-map.txt
> +++ b/arch/x86/lib/x86-opcode-map.txt
> @@ -1052,7 +1052,7 @@ EndTable
>  
>  GrpTable: Grp7
>  0: SGDT Ms | VMCALL (001),(11B) | VMLAUNCH (010),(11B) | VMRESUME (011),(11B) | VMXOFF (100),(11B) | PCONFIG (101),(11B) | ENCLV (000),(11B)
> -1: SIDT Ms | MONITOR (000),(11B) | MWAIT (001),(11B) | CLAC (010),(11B) | STAC (011),(11B) | ENCLS (111),(11B)
> +1: SIDT Ms | MONITOR (000),(11B) | MWAIT (001),(11B) | CLAC (010),(11B) | STAC (011),(11B) | ENCLS (111),(11B) | ERETU (F3),(010),(11B) | ERETS (F2),(010),(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
>  4: SMSW Mw/Rv
> diff --git a/tools/arch/x86/lib/x86-opcode-map.txt b/tools/arch/x86/lib/x86-opcode-map.txt
> index 5168ee0360b2..7a269e269dc0 100644
> --- a/tools/arch/x86/lib/x86-opcode-map.txt
> +++ b/tools/arch/x86/lib/x86-opcode-map.txt
> @@ -1052,7 +1052,7 @@ EndTable
>  
>  GrpTable: Grp7
>  0: SGDT Ms | VMCALL (001),(11B) | VMLAUNCH (010),(11B) | VMRESUME (011),(11B) | VMXOFF (100),(11B) | PCONFIG (101),(11B) | ENCLV (000),(11B)
> -1: SIDT Ms | MONITOR (000),(11B) | MWAIT (001),(11B) | CLAC (010),(11B) | STAC (011),(11B) | ENCLS (111),(11B)
> +1: SIDT Ms | MONITOR (000),(11B) | MWAIT (001),(11B) | CLAC (010),(11B) | STAC (011),(11B) | ENCLS (111),(11B) | ERETU (F3),(010),(11B) | ERETS (F2),(010),(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
>  4: SMSW Mw/Rv
> -- 
> 2.34.1
> 


-- 
Masami Hiramatsu (Google) <mhiramat@xxxxxxxxxx>



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