From mboxrd@z Thu Jan 1 00:00:00 1970 From: Eric Auger Subject: [RFC v5 09/17] irqchip/gic-v3-its: ITS advertises MSI_FLAG_IRQ_REMAPPING Date: Tue, 1 Mar 2016 18:27:49 +0000 Message-ID: <1456856877-4817-10-git-send-email-eric.auger@linaro.org> References: <1456856877-4817-1-git-send-email-eric.auger@linaro.org> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <1456856877-4817-1-git-send-email-eric.auger@linaro.org> 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 To: eric.auger@st.com, eric.auger@linaro.org, robin.murphy@arm.com, alex.williamson@redhat.com, will.deacon@arm.com, joro@8bytes.org, tglx@linutronix.de, jason@lakedaemon.net, marc.zyngier@arm.com, christoffer.dall@linaro.org, linux-arm-kernel@lists.infradead.org, kvmarm@lists.cs.columbia.edu, kvm@vger.kernel.org Cc: patches@linaro.org, Manish.Jaggi@caviumnetworks.com, linux-kernel@vger.kernel.org, iommu@lists.linux-foundation.org List-Id: iommu@lists.linux-foundation.org The ITS is the first ARM MSI controller advertising the new MSI_FLAG_IRQ_REMAPPING flag. It does so because it supports interrupt translation service. This HW support offers isolation of MSIs, feature used when using KVM device passthrough. Signed-off-by: Eric Auger --- v5: new --- drivers/irqchip/irq-gic-v3-its-pci-msi.c | 3 ++- drivers/irqchip/irq-gic-v3-its-platform-msi.c | 3 ++- 2 files changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/irqchip/irq-gic-v3-its-pci-msi.c b/drivers/irqchip/irq-gic-v3-its-pci-msi.c index aee60ed..8223765 100644 --- a/drivers/irqchip/irq-gic-v3-its-pci-msi.c +++ b/drivers/irqchip/irq-gic-v3-its-pci-msi.c @@ -96,7 +96,8 @@ static struct msi_domain_ops its_pci_msi_ops = { static struct msi_domain_info its_pci_msi_domain_info = { .flags = (MSI_FLAG_USE_DEF_DOM_OPS | MSI_FLAG_USE_DEF_CHIP_OPS | - MSI_FLAG_MULTI_PCI_MSI | MSI_FLAG_PCI_MSIX), + MSI_FLAG_MULTI_PCI_MSI | MSI_FLAG_PCI_MSIX | + MSI_FLAG_IRQ_REMAPPING), .ops = &its_pci_msi_ops, .chip = &its_msi_irq_chip, }; diff --git a/drivers/irqchip/irq-gic-v3-its-platform-msi.c b/drivers/irqchip/irq-gic-v3-its-platform-msi.c index 470b4aa..8c0d69d 100644 --- a/drivers/irqchip/irq-gic-v3-its-platform-msi.c +++ b/drivers/irqchip/irq-gic-v3-its-platform-msi.c @@ -63,7 +63,8 @@ static struct msi_domain_ops its_pmsi_ops = { }; static struct msi_domain_info its_pmsi_domain_info = { - .flags = (MSI_FLAG_USE_DEF_DOM_OPS | MSI_FLAG_USE_DEF_CHIP_OPS), + .flags = (MSI_FLAG_USE_DEF_DOM_OPS | MSI_FLAG_USE_DEF_CHIP_OPS | + MSI_FLAG_IRQ_REMAPPING), .ops = &its_pmsi_ops, .chip = &its_pmsi_irq_chip, }; -- 1.9.1