From mboxrd@z Thu Jan 1 00:00:00 1970 From: Boris Ostrovsky Subject: VPMU backports for 4.6 Date: Wed, 20 Jan 2016 11:12:55 -0500 Message-ID: <569FB207.7000206@oracle.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii"; Format="flowed" Content-Transfer-Encoding: 7bit Return-path: List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xen.org Errors-To: xen-devel-bounces@lists.xen.org To: Jan Beulich Cc: "xen-devel@lists.xensource.com" List-Id: xen-devel@lists.xenproject.org There two patches need to be backported to 4.6 fb424bf x86/VPMU: don't allow any non-zero writes to MSR_IA32_PEBS_ENABLE 31af0d7 x86/VPMU: check more carefully which bits are allowed to be written to MSRs (The second patch somewhat depends on 00e248c x86/VPMU: support only versions 2 through 4 of architectural performance monitoring so it may need to be backported as well). -boris