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Date: Tue, 06 Mar 2012 15:07:31 +0200
From: Avi Kivity <avi@redhat.com>
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Subject: Re: [Qemu-devel] [PATCH] target-i386: Mask NX bit from
 cpu_get_phys_page_debug result
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To: Jan Kiszka <jan.kiszka@siemens.com>
Cc: Blue Swirl <blauwirbel@gmail.com>, Anthony Liguori <aliguori@us.ibm.com>, qemu-devel <qemu-devel@nongnu.org>

On 03/06/2012 02:56 PM, Avi Kivity wrote:
> > diff --git a/target-i386/helper.c b/target-i386/helper.c
> > index af6bba2..40fe407 100644
> > --- a/target-i386/helper.c
> > +++ b/target-i386/helper.c
> > @@ -947,7 +947,7 @@ target_phys_addr_t cpu_get_phys_page_debug(CPUState *env, target_ulong addr)
> >      }
> >  
> >      page_offset = (addr & TARGET_PAGE_MASK) & (page_size - 1);
> > -    paddr = (pte & TARGET_PAGE_MASK) + page_offset;
> > +    paddr = (pte & TARGET_PAGE_MASK & ~PG_NX_MASK) + page_offset;
> >      return paddr;
> >  }
> >  
>
> Should we not, in addition, mask the software available bits (53-62 IIRC)?
>

Also intermediate PTEs want this treatment, not just the last one.

-- 
error compiling committee.c: too many arguments to function