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Re: [Xen-devel] [PATCH v8 6/8] dm_op: convert HVMOP_set_mem_type

To: Paul Durrant <paul.durrant@xxxxxxxxxx>
From: George Dunlap <george.dunlap@xxxxxxxxxx>
Date: Mon, 22 May 2017 11:29:33 +0100
Cc: xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxxx>, Ian Jackson <ian.jackson@xxxxxxxxxxxxx>, Jan Beulich <jbeulich@xxxxxxx>, Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
Delivery-date: Mon, 22 May 2017 10:29:42 +0000
List-id: Xen developer discussion <xen-devel.lists.xen.org>

On Tue, Jan 24, 2017 at 3:27 PM, Paul Durrant <paul.durrant@xxxxxxxxxx> wrote:
> This patch removes the need for handling HVMOP restarts, so that
> infrastructure is removed.

This turns out to be false -- HVMOP_set_hvm_param can fail with
-ERESTART if you're setting HVM_PARAM_IDENT_PT and it fails to grab
the domain_ctl lock.

 -George

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