From mboxrd@z Thu Jan 1 00:00:00 1970 From: George Dunlap Subject: Re: [PATCH V1] pvh: change epte_get_entry_emt() for pvh mem types Date: Mon, 25 Nov 2013 10:26:12 +0000 Message-ID: <529325C4.2060807@eu.citrix.com> References: <20131122142908.4189cb2b@mantra.us.oracle.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii"; Format="flowed" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20131122142908.4189cb2b@mantra.us.oracle.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: Mukesh Rathor , "Xen-devel@lists.xensource.com" Cc: Keir Fraser , eddie.dong@intel.com, "Nakajima, Jun" , Jan Beulich List-Id: xen-devel@lists.xenproject.org On 11/22/2013 10:29 PM, Mukesh Rathor wrote: > For pvh guests, epte_get_entry_emt() is incorrectly returning WB for > all mem types because of the following check: > if ( !v->domain->arch.hvm_domain.params[HVM_PARAM_IDENT_PT] ) > Skip the check for pvh guests. > > Also note, MTRR ranges are not maintained for pvh, and a solution is > being contrived using PAT. > > Signed-off-by: Mukesh Rathor Reviewed-by: George Dunlap Also, from a release perspective, this should only affect an as-yet unsupported feature.