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Re: [Xen-devel] [PATCH] x86: drop raw_write_cr4() again

To: Jan Beulich <JBeulich@xxxxxxxx>, xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxxx>
From: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
Date: Tue, 22 Mar 2016 13:25:54 +0000
Cc: Keir Fraser <keir@xxxxxxx>
Delivery-date: Tue, 22 Mar 2016 13:26:02 +0000
List-id: Xen developer discussion <xen-devel.lists.xen.org>

On 22/03/16 12:54, Jan Beulich wrote:
> The bypassing of the memory cache is, namely in the context of the
> 32-bit PV SMEP/SMAP workaround series (as Andrew validly points out),
> making the overall correctness more difficult to verify. Hence go
> back to uniform writes.
>
> Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>

Reviewed-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>

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References:
- [Xen-devel] [PATCH] x86: drop raw_write_cr4() again
  - From: Jan Beulich

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