linux-kernel - Re: [PATCH] x86/xen: Fix 32-bit PV guests's usage of kernel

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Message-ID: <53455468.5040201@citrix.com>
Date:	Wed, 9 Apr 2014 15:08:40 +0100
From:	David Vrabel <david.vrabel@...rix.com>
To:	Boris Ostrovsky <boris.ostrovsky@...cle.com>
CC:	<konrad.wilk@...cle.com>, <xen-devel@...ts.xenproject.org>,
	<linux-kernel@...r.kernel.org>, <srostedt@...hat.com>
Subject: Re: [PATCH] x86/xen: Fix 32-bit PV guests's usage of kernel_stack

On 09/04/14 15:06, Boris Ostrovsky wrote:
> Commit 198d208df4371734ac4728f69cb585c284d20a15 made 32-bit kernels use
> kernel_stack to point to thread_info. That change missed a couple of
> updates needed by Xen's PV guests:

Can you put the commit subject in addition to the hash?

> 1. kernel_stack needs to be initialized for secondary CPUs
> 2. GET_THREAD_INFO() now uses %fs register which may not be the kernel's
> version when executing xen_iret()

Otherwise,

Reviewed-by: David Vrabel <david.vrabel@...rix.com>

David
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