From mboxrd@z Thu Jan 1 00:00:00 1970 From: Lin Ming Subject: Re: Virtualization of the CPU Performance Monitoring Unit Date: Wed, 11 Apr 2012 00:26:58 +0800 Message-ID: <1334075218.10187.2.camel@hp6530s> References: <4F7F1D14.9040208@amd.com> <4F84478A.5010701@citrix.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <4F84478A.5010701@citrix.com> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xen.org Errors-To: xen-devel-bounces@lists.xen.org To: Marcus Granado Cc: mike McClurg , "wei.huang2@amd.com" , Konrad Rzeszutek Wilk , "xen-devel@lists.xen.org" List-Id: xen-devel@lists.xenproject.org On Tue, 2012-04-10 at 15:45 +0100, Marcus Granado wrote: > On 08/04/12 07:48, Lin Ming wrote: > >> 2. The PMU project description in the wiki is vague. I know HVM guests > >> support virtualized PMU. Please check vpmu.c files in /hvm, /svm, and /vmx > >> directories. You better ask mentors for details (maybe this is XCP > >> specific?). > Yes, the description is vague, we should update the page. The idea was > to enable users to run hardware profilers in dom0 and in any domU, PV or > HVM. This would include implementing what is missing for dom0/PV > domains, and to confirm in HVM domains that profilers such as oprofile, > hwpmc, intel performance counter monitor at least are running without > problems in the existing vPMU implementation. The original idea was to > add support to XCP, but please feel free to add support to xen-unstable > and the latest linux kernel; XCP will use those at some point. Thanks for the clarification. I'll investigate this first. > cheers, > Marcus > >