From mboxrd@z Thu Jan 1 00:00:00 1970 From: "tiejun.chen" Subject: Re: [v1][KVM][PATCH 1/1] kvm:ppc:booehv: direct ISI exception to Guest Date: Thu, 9 May 2013 19:40:26 +0800 Message-ID: <518B8B2A.1020103@windriver.com> References: <1367970043.3398.39@snotra> <5189B02E.3000109@windriver.com> <300B73AA675FCE4A93EB4FC1D42459FF3EFA26@039-SN2MPN1-013.039d.mgd.msft.net> <518A1AD8.3090103@windriver.com> <518B7913.6010302@windriver.com> <300B73AA675FCE4A93EB4FC1D42459FF3F7FBE@039-SN2MPN1-012.039d.mgd.msft.net> Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8"; format=flowed Content-Transfer-Encoding: 7bit Cc: Wood Scott-B07421 , "linuxppc-dev@lists.ozlabs.org" , "agraf@suse.de" , "kvm-ppc@vger.kernel.org" , "kvm@vger.kernel.org" To: Caraman Mihai Claudiu-B02008 Return-path: In-Reply-To: <300B73AA675FCE4A93EB4FC1D42459FF3F7FBE@039-SN2MPN1-012.039d.mgd.msft.net> Sender: kvm-ppc-owner@vger.kernel.org List-Id: kvm.vger.kernel.org On 05/09/2013 07:34 PM, Caraman Mihai Claudiu-B02008 wrote: >>>> VF stands for virtualization fault see MAS8[VF] and we may use it for >> virtualized >> >> Looks KVM PPC have no this mechanism currently since I don't find MAS8_VF >> is >> used in kernel, right? > > Yes but 'we may use it' in the feature, I have a functional POC with VF. Any IO performance to be improved with this POC? > Now we capture virtualized MMIO accesses as TLB misses (we don't write > into HW TLB guest translation outside visible memslots). Yes. Tiejun