From mboxrd@z Thu Jan 1 00:00:00 1970 From: "H. Peter Anvin" Subject: Re: [PATCH] x86/amd: fix crash as Xen Dom0 on AMD Trinity systems Date: Wed, 30 May 2012 16:31:49 -0700 Message-ID: <4FC6ADE5.6080003@zytor.com> References: <1338383402-3838-1-git-send-email-andre.przywara@amd.com> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <1338383402-3838-1-git-send-email-andre.przywara@amd.com> Sender: linux-kernel-owner@vger.kernel.org To: Andre Przywara Cc: mingo@elte.hu, tglx@linutronix.de, konrad.wilk@oracle.com, jeremy@goop.org, linux-kernel@vger.kernel.org, xen-devel@lists.xensource.com, stable@vger.kernel.org.#.3.4+ List-Id: xen-devel@lists.xenproject.org On 05/30/2012 06:10 AM, Andre Przywara wrote: > Because we are behind a family check before tweaking the topology > bit, we can use the standard rd/wrmsr variants for the CPUID feature > register. > This fixes a crash when using the kernel as a Xen Dom0 on affected > Trinity systems. The wrmsrl_amd_safe is not properly paravirtualized > yet (this will be fixed in another patch). > > Signed-off-by: Andre Przywara > Cc: stable@vger.kernel.org # 3.4+ With Konrad's patch, this is no longer relevant, correct? -hpa -- H. Peter Anvin, Intel Open Source Technology Center I work for Intel. I don't speak on their behalf.