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I think the definitions of IO instructions should change. Since IO instructions
also act as memory barriers, the ld and st microops should be replaced with 
ldstl
and stul. 

- Nilay


On 2011-10-30 18:22:08, Nilay Vaish wrote:
> 
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> This is an automatically generated e-mail. To reply, visit:
> http://reviews.m5sim.org/r/897/
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> 
> (Updated 2011-10-30 18:22:08)
> 
> 
> Review request for Default.
> 
> 
> Summary
> -------
> 
> X86 ISA: Change definitions of locked instructions
> This patch is for changing the defintion of locked instructions. These
> should behave as memory barriers and should be executed in a non speculative
> fashion.
> 
> 
> Diffs
> -----
> 
>   src/arch/x86/isa/insts/general_purpose/input_output/general_io.py 
> dd77c8d0a93e 
>   src/arch/x86/isa/insts/general_purpose/input_output/string_io.py 
> dd77c8d0a93e 
>   src/arch/x86/isa/microops/ldstop.isa dd77c8d0a93e 
> 
> Diff: http://reviews.m5sim.org/r/897/diff
> 
> 
> Testing
> -------
> 
> 
> Thanks,
> 
> Nilay
> 
>

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