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Re: [Qemu-devel] [for-2.6 PATCH 1/3] target-i386: Define structs for lay


From: Eduardo Habkost
Subject: Re: [Qemu-devel] [for-2.6 PATCH 1/3] target-i386: Define structs for layout of xsave area
Date: Tue, 1 Dec 2015 15:15:50 -0200
User-agent: Mutt/1.5.23 (2014-03-12)

On Tue, Dec 01, 2015 at 09:09:47AM -0800, Richard Henderson wrote:
> On 11/30/2015 03:18 AM, Paolo Bonzini wrote:
> >Because this is always little endian, I would write it as uint8_t[16][16].
> 
> Maybe.  That isn't altogether handy for TCG, since we'll be wanting to bswap
> these buffers (probably in uint64_t chunks).

X86XSaveArea will be used only when loading/saving state using
xsave, not for executing regular instructions. In X86CPU, the
data is already stored as XMMReg unions (the one with the
XMM_[BWDQ] helpers).

-- 
Eduardo



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