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Re: [Xen-devel] [PATCH v2 2/2] x86/mm: factor out the code for shattering an l2 PTE

To: Hongyan Xia <hongyxia@xxxxxxxxxx>
From: Jan Beulich <jbeulich@xxxxxxxx>
Date: Tue, 10 Dec 2019 16:27:29 +0100
Cc: xen-devel@xxxxxxxxxxxxxxxxxxxx, jgrall@xxxxxxxxxx, Roger Pau Monné <roger.pau@xxxxxxxxxx>, Wei Liu <wl@xxxxxxx>, Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
Delivery-date: Tue, 10 Dec 2019 15:27:18 +0000
List-id: Xen developer discussion <xen-devel.lists.xenproject.org>

On 09.12.2019 12:48, Hongyan Xia wrote:
> map_pages_to_xen and modify_xen_mappings are performing almost exactly
> the same operations when shattering an l2 PTE, the only difference
> being whether we want to flush.
> 
> Signed-off-by: Hongyan Xia <hongyxia@xxxxxxxxxx>

Mostly the same comments as for patch 1 (I think one is inapplicable
here).

Jan

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References:
- [Xen-devel] [PATCH v2 0/2] Refactor super page shattering
  - From: Hongyan Xia
- [Xen-devel] [PATCH v2 2/2] x86/mm: factor out the code for shattering an l2 PTE
  - From: Hongyan Xia

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