Re: [PATCH -v2] Monitor command: pfa2hva, translate guest physical address to host virtual address

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On Wed, 2010-11-10 at 14:56 +0800, Avi Kivity wrote:
> On 11/08/2010 05:39 AM, Anthony Liguori wrote:
> >> Yes. The main usage of the interface is automated testing.
> >
> > That's precisely what the command should not be used for.
> >
> > You can't assume a gpa -> hva mapping is consistent in an external 
> > application.  If you want to implement an interface for testing, you 
> > have to push more of the logic into QEMU to avoid the race.
> 
> An alternative is to use -mempath.  Does poisoning work for tmpfs?

Sorry for my stupid question. Why the gpa -> hva mapping is not
consistent for RAM if -mempath is not used?

Best Regards,
Huang Ying


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