From mboxrd@z Thu Jan 1 00:00:00 1970 From: Avi Kivity Date: Wed, 17 Oct 2012 14:50:23 +0000 Subject: Re: [PATCH 0/2] KVM: PPC: Support ioeventfd Message-Id: <507EC5AF.2080907@redhat.com> List-Id: References: <1350302566-28889-1-git-send-email-agraf@suse.de> <507D3D4D.2090507@redhat.com> <507D3E91.6070909@redhat.com> <3E4E65FD-8C9E-481A-B2C7-D1E7B23F362C@suse.de> <507D656C.3020502@redhat.com> <507D7413.1000506@suse.de> In-Reply-To: <507D7413.1000506@suse.de> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: Alexander Graf Cc: KVM list , kvm-ppc@vger.kernel.org On 10/16/2012 04:49 PM, Alexander Graf wrote: >> If there is a lot of prioritization and/or queuing logic, then yes. But >> what about MSI? Doesn't that have a direct path? > > Nope. Well, yes, in a certain special case where the MPIC pushes the > interrupt vector on interrupt delivery into a special register. But not > for the "normal" case. Ok. The patches are fine then, but would be good to add the PIO check. -- error compiling committee.c: too many arguments to function From mboxrd@z Thu Jan 1 00:00:00 1970 From: Avi Kivity Subject: Re: [PATCH 0/2] KVM: PPC: Support ioeventfd Date: Wed, 17 Oct 2012 16:50:23 +0200 Message-ID: <507EC5AF.2080907@redhat.com> References: <1350302566-28889-1-git-send-email-agraf@suse.de> <507D3D4D.2090507@redhat.com> <507D3E91.6070909@redhat.com> <3E4E65FD-8C9E-481A-B2C7-D1E7B23F362C@suse.de> <507D656C.3020502@redhat.com> <507D7413.1000506@suse.de> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Cc: KVM list , kvm-ppc@vger.kernel.org To: Alexander Graf Return-path: In-Reply-To: <507D7413.1000506@suse.de> Sender: kvm-ppc-owner@vger.kernel.org List-Id: kvm.vger.kernel.org On 10/16/2012 04:49 PM, Alexander Graf wrote: >> If there is a lot of prioritization and/or queuing logic, then yes. But >> what about MSI? Doesn't that have a direct path? > > Nope. Well, yes, in a certain special case where the MPIC pushes the > interrupt vector on interrupt delivery into a special register. But not > for the "normal" case. Ok. The patches are fine then, but would be good to add the PIO check. -- error compiling committee.c: too many arguments to function