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Re: [Xen-devel] [PATCH] HVM guests are allowed to use the entire virtual
| To: | Tim Deegan <Tim.Deegan@xxxxxxxxxxxxx> |
|---|---|
| Subject: | Re: [Xen-devel] [PATCH] HVM guests are allowed to use the entire virtual address space for |
| From: | Keir Fraser <keir.fraser@xxxxxxxxxxxxx> |
| Date: | Tue, 25 May 2010 17:24:58 +0100 |
| Cc: | "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx> |
| Delivery-date: | Tue, 25 May 2010 09:26:04 -0700 |
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| Thread-topic: | [Xen-devel] [PATCH] HVM guests are allowed to use the entire virtual address space for |
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On 25/05/2010 16:14, "Tim Deegan" <Tim.Deegan@xxxxxxxxxxxxx> wrote:
> At 16:04 +0100 on 25 May (1274803495), Keir Fraser wrote:
>> 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.
>
> OK, can I suggest the attached change instead? It brings the
> compat guest-handle macros in line with the normal ones.
Yeah, that's a good bug fix.
Thanks,
K.
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