Path: csiph.com!1.us.feeder.erje.net!feeder.erje.net!2.eu.feeder.erje.net!news.unit0.net!news.panservice.it!diesel.cu.mi.it!bofh.it!news.nic.it!robomod From: Eric Auger Newsgroups: linux.kernel Subject: [RFC v4 13/16] irqchip/gicv3-its: Sets IRQ_DOMAIN_FLAG_MSI_REMAP Date: Tue, 13 Dec 2016 21:50:01 +0100 Message-ID: References: X-Original-To: eric.auger@redhat.com, eric.auger.pro@gmail.com, christoffer.dall@linaro.org, marc.zyngier@arm.com, robin.murphy@arm.com, alex.williamson@redhat.com, will.deacon@arm.com, joro@8bytes.org, tglx@linutronix.de, jason@lakedaemon.net, linux-arm-kernel@lists.infradead.org X-Scanned-By: MIMEDefang 2.68 on 10.5.11.23 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.38]); Tue, 13 Dec 2016 20:32:06 +0000 (UTC) Sender: robomod@news.nic.it List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Approved: robomod@news.nic.it Lines: 22 Organization: linux.* mail to news gateway X-Original-Cc: kvm@vger.kernel.org, drjones@redhat.com, linux-kernel@vger.kernel.org, pranav.sawargaonkar@gmail.com, iommu@lists.linux-foundation.org, punit.agrawal@arm.com, diana.craciun@nxp.com, gpkulkarni@gmail.com, shankerd@codeaurora.org, bharat.bhushan@nxp.com X-Original-Date: Tue, 13 Dec 2016 20:30:31 +0000 X-Original-Message-ID: <1481661034-3088-14-git-send-email-eric.auger@redhat.com> X-Original-References: <1481661034-3088-1-git-send-email-eric.auger@redhat.com> X-Original-Sender: linux-kernel-owner@vger.kernel.org Xref: csiph.com linux.kernel:1541505 The GICv3 ITS is MSI remapping capable. Let's advertise this property so that VFIO passthrough can assess IRQ safety. Signed-off-by: Eric Auger --- drivers/irqchip/irq-gic-v3-its.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/irqchip/irq-gic-v3-its.c b/drivers/irqchip/irq-gic-v3-its.c index c5dee30..39926e1 100644 --- a/drivers/irqchip/irq-gic-v3-its.c +++ b/drivers/irqchip/irq-gic-v3-its.c @@ -1643,6 +1643,7 @@ static int its_init_domain(struct fwnode_handle *handle, struct its_node *its) inner_domain->parent = its_parent; inner_domain->bus_token = DOMAIN_BUS_NEXUS; + inner_domain->flags |= IRQ_DOMAIN_FLAG_MSI_REMAP; info->ops = &its_msi_domain_ops; info->data = its; inner_domain->host_data = info; -- 1.9.1