Re: [Qemu-devel] [PATCH 0/5] tcg/i386: use movbe instruction in qemu_ldst routines

[Aurelien Jarno]

I forgot to Cc: Richard on this patch set, doing that now...

On Sat, Dec 21, 2013 at 05:43:39PM +0100, Aurelien Jarno wrote:
> This patchset enable the usage of the movbe instruction, available on
> Intel Atom and Intel Haswell CPU, in qemu_ldst routines, avoiding bswap
> instructions before or after the store or loads. The availability of
> this instruction is done at runtime using the cpuid instruction.
> 
> The last patch of the series is not fully related, but I spotted the
> issue when working on this patchset, so I thought it's a good idea to
> fix it.
> 
> Aurelien Jarno (5):
>   disas/i386.c: disassemble movbe instruction
>   tcg/i386: remove hardcoded P_REXW value
>   tcg/i386: add support for three-byte opcodes
>   tcg/i386: use movbe instruction in qemu_ldst routines
>   tcg/i386: cleanup useless #ifdef
> 
>  disas/i386.c          |    8 +--
>  tcg/i386/tcg-target.c |  178 
> ++++++++++++++++++++++++++++++++++---------------
>  2 files changed, 128 insertions(+), 58 deletions(-)
> 
> -- 
> 1.7.10.4
> 
> 

-- 
Aurelien Jarno                          GPG: 1024D/F1BCDB73
address@hidden                 http://www.aurel32.net