Re: [GIT PULL] x86: unify sys_iopl

[Jeremy Fitzhardinge]

On 10/13/09 09:24, H. Peter Anvin wrote:
> First of all, the unification looks good.
>
> As far as .32 is concerned... this *is* a bug even if this is only for
> paravirt, and given the small amount of code I am personally OK with
> taking the whole patch for .32.
>
> However, the patch is not complete!  The patch incidentally eliminates
> the need to have assembly stubs for sys_iopl, and those assembly stubs
> should be removed.  I have a patch for that currently test building.
>   

I wasn't sure whether task_pt_regs() needed the full register set to be
saved to correctly return rflags (that is, does PTREGSCALL change the
shape of the stack, or just the contents?).

    J
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