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Re: [Xen-ia64-devel] vcpu_translate issue

To: "Xu, Anthony" <anthony.xu@xxxxxxxxx>, "Magenheimer, Dan \(HP Labs Fort Collins\)" <dan.magenheimer@xxxxxx>
Subject: Re: [Xen-ia64-devel] vcpu_translate issue
From: Tristan Gingold <Tristan.Gingold@xxxxxxxx>
Date: Fri, 4 Nov 2005 13:57:32 +0200
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Le Vendredi 04 Novembre 2005 11:20, Xu, Anthony a écrit :
> Dan,
>
> In vcpu_translate function, if guest address is within region 0 and
> guest is in virtual mode, vcpu_translate will print warning message and
> don't translate. It seems you assume guest will not access this kind of
> address, but actually guest application can allocate region 0 address
> spaces by using system call mmap.
Until the console patch, the kernel was accessing region 0 (due to 
uninitialized variable), and this work-around was necessary to continue the 
boot.

Tristan.


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