Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]


Groups > linux.kernel > #1234155

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

Path csiph.com!goblin2!goblin.stu.neva.ru!aioe.org!bofh.it!news.nic.it!robomod
From David Vrabel <david.vrabel@citrix.com>
Newsgroups linux.kernel
Subject Re: [Xen-devel] [PATCH] xen/x86: Don't try to write syscall-related MSRs for PV guests
Date Mon, 28 Sep 2015 15:40:03 +0200
Message-ID <qdGOT-Rc-25@gated-at.bofh.it> (permalink)
References <qb9aH-7Hp-37@gated-at.bofh.it>
X-Original-To Boris Ostrovsky <boris.ostrovsky@oracle.com>, <konrad.wilk@oracle.com>, <david.vrabel@citrix.com>
X-Ironport-Av E=Sophos;i="5.17,602,1437436800"; d="scan'208";a="302820718"
User-Agent Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Icedove/31.8.0
MIME-Version 1.0
Content-Type text/plain; charset="windows-1252"
Content-Transfer-Encoding 7bit
X-Dlp MIA2
Sender robomod@news.nic.it
List-ID <linux-kernel.vger.kernel.org>
X-Mailing-List linux-kernel@vger.kernel.org
Approved robomod@news.nic.it
Lines 14
Organization linux.* mail to news gateway
X-Original-Cc <xen-devel@lists.xenproject.org>, <linux-kernel@vger.kernel.org>
X-Original-Date Mon, 28 Sep 2015 14:24:44 +0100
X-Original-Message-ID <56093F9C.6030400@citrix.com>
X-Original-References <1442840968-23052-1-git-send-email-boris.ostrovsky@oracle.com>
X-Original-Sender linux-kernel-owner@vger.kernel.org
Xref csiph.com linux.kernel:1234155

Show key headers only | View raw


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
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Back to linux.kernel | Previous | Next | Find similar | Unroll thread


Thread

Re: [Xen-devel] [PATCH] xen/x86: Don't try to write syscall-related  MSRs for PV guests David Vrabel <david.vrabel@citrix.com> - 2015-09-28 15:40 +0200

csiph-web