From mboxrd@z Thu Jan 1 00:00:00 1970 From: Prakash B Subject: Re: [PATCH v5 10/22] KVM: arm64: vgic-its: Implement vgic_mmio_uaccess_write_its_iidr Date: Wed, 26 Apr 2017 16:57:57 +0530 Message-ID: References: <1492164934-988-1-git-send-email-eric.auger@redhat.com> <1492164934-988-11-git-send-email-eric.auger@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Cc: kvm@vger.kernel.org, Prasun.Kapoor@cavium.com, Marc Zyngier , andre.przywara@arm.com, quintela@redhat.com, dgilbert@redhat.com, Vijaya.Kumar@cavium.com, vijayak@caviumnetworks.com, linux-arm-kernel@lists.infradead.org, pbonzini@redhat.com, kvmarm@lists.cs.columbia.edu, eric.auger.pro@gmail.com To: Eric Auger Return-path: In-Reply-To: <1492164934-988-11-git-send-email-eric.auger@redhat.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: kvmarm-bounces@lists.cs.columbia.edu Sender: kvmarm-bounces@lists.cs.columbia.edu List-Id: kvm.vger.kernel.org On Fri, Apr 14, 2017 at 3:45 PM, Eric Auger wrote: > The GITS_IIDR revision field is used to encode the migration ABI > revision. So we need to restore it to check the table layout is > readable by the destination. > > By writing the IIDR, userspace thus force the ABI revision to be > used and this msut be less or equal than the max revision KVM supports. > > Signed-off-by: Eric Auger Tested-by: Prakash, Brahmajyosyula From mboxrd@z Thu Jan 1 00:00:00 1970 From: bjsprakash.linux@gmail.com (Prakash B) Date: Wed, 26 Apr 2017 16:57:57 +0530 Subject: [PATCH v5 10/22] KVM: arm64: vgic-its: Implement vgic_mmio_uaccess_write_its_iidr In-Reply-To: <1492164934-988-11-git-send-email-eric.auger@redhat.com> References: <1492164934-988-1-git-send-email-eric.auger@redhat.com> <1492164934-988-11-git-send-email-eric.auger@redhat.com> Message-ID: To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On Fri, Apr 14, 2017 at 3:45 PM, Eric Auger wrote: > The GITS_IIDR revision field is used to encode the migration ABI > revision. So we need to restore it to check the table layout is > readable by the destination. > > By writing the IIDR, userspace thus force the ABI revision to be > used and this msut be less or equal than the max revision KVM supports. > > Signed-off-by: Eric Auger Tested-by: Prakash, Brahmajyosyula