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Message-ID: <20100705120118.GB15826@amt.cnet>
Date: Mon, 5 Jul 2010 09:01:18 -0300
From: Marcelo Tosatti <mtosatti@...hat.com>
To: Xiao Guangrong <xiaoguangrong@...fujitsu.com>
Cc: Avi Kivity <avi@...hat.com>, LKML <linux-kernel@...r.kernel.org>,
KVM list <kvm@...r.kernel.org>
Subject: Re: [PATCH v4 4/6] KVM: MMU: prefetch ptes when intercepted guest #PF
On Sat, Jul 03, 2010 at 04:08:42PM +0800, Xiao Guangrong wrote:
>
>
> Marcelo Tosatti wrote:
>
> >> +
> >> + if (is_rsvd_bits_set(vcpu, gpte, PT_PAGE_TABLE_LEVEL))
> >> + break;
> >
> > BTW, doesnt sync_page also lack reserved bit checking? (unrelated to
> > this patch).
> >
>
> I think it's not since if EPT is enabled, no unsync page exist, the sync page
> path can't be trigged. :-)
What i mean is, why the sync_page path does not require reserved bit
checking? (EPT disabled).
Just to clarify, this has nothing to do with your patch.
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