linux-kernel - Re: [CFT PATCH v2 2/2] KVM: x86: support XSAVES usage in the host

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Message-ID: <547F1D84.9040505@redhat.com>
Date:	Wed, 03 Dec 2014 15:26:12 +0100
From:	Paolo Bonzini <pbonzini@...hat.com>
To:	Nadav Amit <nadav.amit@...il.com>
CC:	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	kvm list <kvm@...r.kernel.org>,
	Wanpeng Li <wanpeng.li@...ux.intel.com>,
	Nadav Amit <namit@...technion.ac.il>, hpa@...ux.intel.com,
	Fenghua Yu <fenghua.yu@...el.com>
Subject: Re: [CFT PATCH v2 2/2] KVM: x86: support XSAVES usage in the host



On 03/12/2014 15:23, Nadav Amit wrote:
> I think it is better just to replace the last line with:
> 
> *(u64 *)(dest + XSAVE_HDR_OFFSET) = xsave->xsave_hdr.xstate_bv

Right, this matches

        u64 xstate_bv = *(u64 *)(src + XSAVE_HDR_OFFSET);
	...
        xsave->xsave_hdr.xstate_bv = xstate_bv;

in load_xsave.

Paolo
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