From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Tian, Kevin" Subject: Re: [v3 04/15] iommu: Add iommu_intpost to control VT-d Posted-Interrupts feature Date: Wed, 8 Jul 2015 07:30:26 +0000 Message-ID: References: <1435123109-10481-1-git-send-email-feng.wu@intel.com> <1435123109-10481-5-git-send-email-feng.wu@intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <1435123109-10481-5-git-send-email-feng.wu@intel.com> Content-Language: en-US List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xen.org Errors-To: xen-devel-bounces@lists.xen.org To: "Wu, Feng" , "xen-devel@lists.xen.org" Cc: "Zhang, Yang Z" , "andrew.cooper3@citrix.com" , "keir@xen.org" , "george.dunlap@eu.citrix.com" , "jbeulich@suse.com" List-Id: xen-devel@lists.xenproject.org > From: Wu, Feng > Sent: Wednesday, June 24, 2015 1:18 PM > > VT-d Posted-Interrupts is an enhancement to CPU side Posted-Interrupt. > With VT-d Posted-Interrupts enabled, external interrupts from > direct-assigned devices can be delivered to guests without VMM > intervention when guest is running in non-root mode. > > This patch adds variable 'iommu_intpost' to control whether enable VT-d > posted-interrupt or not in the generic IOMMU code. > > Signed-off-by: Feng Wu Reviewed-by: Kevin Tian