Re: [Xen-devel] [PATCH] HVM guests are allowed to use the entire virtual address space for

[Keir Fraser <keir.fraser@xxxxxxxxxxxxx>]

I think this is already handled correctly by guest_access.h, which is what
really matters. Nowadays copy_{to,from}_user (but not __copy_{to,from}_user)
are mainly for private usage only by the guest-access macros, and just a few
other arch-dependent PV_specific bits of code. Of course the __ versions are
still generally useful as 'copy but catch any fault' functions.

 -- Keir

On 25/05/2010 15:49, "Tim Deegan" <Tim.Deegan@xxxxxxxxxx> wrote:

> whatever they want, without any Xen hole.  __addr_ok() is therefore
> always true for such guests.
> 
> Signed-off-by: Tim Deegan <Tim.Deegan@xxxxxxxxxx>
> 
> 



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