Re: [Xen-devel] [PATCH] x86: refine address validity checks before accessing page tables

[Tim Deegan <tim@xxxxxxx>]

At 16:08 +0100 on 22 Oct (1382454486), Jan Beulich wrote:
> In commit 40d66baa ("x86: correct LDT checks") and d06a0d71 ("x86: add
> address validity check to guest_map_l1e()") I didn't really pay
> attention to the fact that these checks would better be done before the
> paging_mode_translate() ones, as there's also no equivalent check down
> the shadow code paths involved here (at least not up to the first use
> of the address), and such generic checks shouldn't really be done by
> particular backend functions anyway.
> 
> Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>

Acked-by: Tim Deegan <tim@xxxxxxx>

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