Re: [PATCH RFC WIP] x86/paravirt: add register-saving thunks toreduce caller register pressure

[Pavel Machek]

> This patch seeks to alleviate this pressure by introducing wrapper
> thunks that will do the register saving/restoring, so that the
> callsite doesn't need to worry about it, but the callee function can
> be conventional compiler-generated code.  In many cases (particularly
> performance-sensitive cases) the callee will be in assembler anyway,
> and need not use the compiler's calling convention.
>
> Standard calling convention is:
> 	 arguments	    return	scratch
> x86-32	 eax edx ecx	    eax		?

esi edi ebp ?

actually standard calling convention is all arguments on stack iirc
but we use regparm=3 for kernel...?

-- 
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