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Re: [Xen-devel] [PATCH] xen/x86: Don't try to write syscall-related MSRs for PV guests

To: Boris Ostrovsky <boris.ostrovsky@xxxxxxxxxx>, <konrad.wilk@xxxxxxxxxx>, <david.vrabel@xxxxxxxxxx>
From: David Vrabel <david.vrabel@xxxxxxxxxx>
Date: Mon, 28 Sep 2015 14:24:44 +0100
Cc: xen-devel@xxxxxxxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx
Delivery-date: Mon, 28 Sep 2015 13:24:51 +0000
List-id: Xen developer discussion <xen-devel.lists.xen.org>

On 21/09/15 14:09, Boris Ostrovsky wrote:
> For PV guests these registers are set up by hypervisor and thus
> should not be written by the guest. The comment in xen_write_msr_safe()
> says so but we still write the MSRs, causing the hypervisor to
> print a warning.

Applied to for-linus-4.3, thanks.

David

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References:
- [Xen-devel] [PATCH] xen/x86: Don't try to write syscall-related MSRs for PV guests
  - From: Boris Ostrovsky

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