From: Boris Ostrovsky <boris.ostrovsky@oracle.com>
To: "Luis R. Rodriguez" <mcgrof@suse.com>,
David Vrabel <david.vrabel@citrix.com>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>,
xen-devel@lists.xenproject.org,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
Andy Lutomirski <luto@amacapital.net>
Subject: Re: [Xen-devel] [PATCH] x86/xen: Initialize cr4 shadow for 64-bit PV(H) guests
Date: Tue, 03 Mar 2015 09:27:34 -0500 [thread overview]
Message-ID: <54F5C4D6.9010907@oracle.com> (raw)
In-Reply-To: <CAB=NE6V6K-OceG8Vw6Zhh6JuCCxNN=R5AWHjjduv-s6qQnB5MQ@mail.gmail.com>
On 03/03/2015 12:35 AM, Luis R. Rodriguez wrote:
> On Mon, Feb 23, 2015 at 9:09 AM, David Vrabel <david.vrabel@citrix.com> wrote:
>> On 23/02/15 16:01, Boris Ostrovsky wrote:
>>> Commit 1e02ce4cccdc ("x86: Store a per-cpu shadow copy of CR4")
>>> introduced CR4 shadows.
>>>
>>> These shadows are initialized in early boot code. The commit missed
>>> initialization for 64-bit PV(H) guests that this patch adds.
>> Applied to stable/for-linus-4.0, thanks.
>>
>> Boris, can you kick of a set of tests on this branch, please?
> Do we know worst case what should blow up without this commit ?
PVH guest will crash.
-boris
next prev parent reply other threads:[~2015-03-03 14:29 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-02-23 16:01 [PATCH] x86/xen: Initialize cr4 shadow for 64-bit PV(H) guests Boris Ostrovsky
2015-02-23 16:09 ` Andy Lutomirski
2015-02-23 16:16 ` Boris Ostrovsky
2015-02-23 17:09 ` [Xen-devel] " David Vrabel
2015-03-03 5:35 ` Luis R. Rodriguez
2015-03-03 14:27 ` Boris Ostrovsky [this message]
2015-03-03 18:15 ` Luis R. Rodriguez
2015-03-03 18:27 ` Konrad Rzeszutek Wilk
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