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Re: [Xen-devel] [PATCH] Revert "VMX: flush cache when vmentry back to UC guest"

To: Jan Beulich <JBeulich@xxxxxxxx>, xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxxx>
From: George Dunlap <george.dunlap@xxxxxxxxxxxxx>
Date: Wed, 4 Dec 2013 16:54:32 +0000
Cc: Jinsong Liu <jinsong.liu@xxxxxxxxx>, Andrew Cooper <andrew.cooper3@xxxxxxxxxx>, Keir Fraser <keir@xxxxxxx>, Eddie Dong <eddie.dong@xxxxxxxxx>, Jun Nakajima <jun.nakajima@xxxxxxxxx>
Delivery-date: Wed, 04 Dec 2013 16:54:53 +0000
List-id: Xen developer discussion <xen-devel.lists.xen.org>

On 12/04/2013 04:46 PM, Jan Beulich wrote:

This reverts commit 86d60e85 as well as one related change from
62652c00 ("VMX: fix cr0.cd handling"), on the basis that all of this
flushing is still insufficient and, while not known to fix anything, is
known to negatively affect performance.

Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>


Release-acked-by: George Dunlap <george.dunlap@xxxxxxxxxxxxx>

 -George


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References:
- [Xen-devel] [PATCH] Revert "VMX: flush cache when vmentry back to UC guest"
  - From: Jan Beulich

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