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From: Eric Auger <eric.auger@linaro.org>
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: suravee.suthikulpanit@amd.com, patches@linaro.org,
	linux-kernel@vger.kernel.org, Manish.Jaggi@caviumnetworks.com,
	Bharat.Bhushan@freescale.com, pranav.sawargaonkar@gmail.com,
	p.fedin@samsung.com, iommu@lists.linux-foundation.org
Subject: [RFC v5 09/17] irqchip/gic-v3-its: ITS advertises MSI_FLAG_IRQ_REMAPPING
Date: Tue,  1 Mar 2016 18:27:49 +0000	[thread overview]
Message-ID: <1456856877-4817-10-git-send-email-eric.auger@linaro.org> (raw)
In-Reply-To: <1456856877-4817-1-git-send-email-eric.auger@linaro.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 <eric.auger@linaro.org>

---

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

WARNING: multiple messages have this Message-ID (diff)
From: Eric Auger <eric.auger@linaro.org>
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
Subject: [RFC v5 09/17] irqchip/gic-v3-its: ITS advertises MSI_FLAG_IRQ_REMAPPING
Date: Tue,  1 Mar 2016 18:27:49 +0000	[thread overview]
Message-ID: <1456856877-4817-10-git-send-email-eric.auger@linaro.org> (raw)
In-Reply-To: <1456856877-4817-1-git-send-email-eric.auger@linaro.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 <eric.auger@linaro.org>

---

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

WARNING: multiple messages have this Message-ID (diff)
From: eric.auger@linaro.org (Eric Auger)
To: linux-arm-kernel@lists.infradead.org
Subject: [RFC v5 09/17] irqchip/gic-v3-its: ITS advertises MSI_FLAG_IRQ_REMAPPING
Date: Tue,  1 Mar 2016 18:27:49 +0000	[thread overview]
Message-ID: <1456856877-4817-10-git-send-email-eric.auger@linaro.org> (raw)
In-Reply-To: <1456856877-4817-1-git-send-email-eric.auger@linaro.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 <eric.auger@linaro.org>

---

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

  parent reply	other threads:[~2016-03-01 18:28 UTC|newest]

Thread overview: 70+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-03-01 18:27 [RFC v5 00/17] KVM PCIe/MSI passthrough on ARM/ARM64 Eric Auger
2016-03-01 18:27 ` Eric Auger
2016-03-01 18:27 ` Eric Auger
2016-03-01 18:27 ` [RFC v5 01/17] iommu: Add DOMAIN_ATTR_MSI_MAPPING attribute Eric Auger
2016-03-01 18:27   ` Eric Auger
2016-03-01 18:27   ` Eric Auger
2016-03-01 18:27 ` [RFC v5 02/17] iommu/arm-smmu: advertise " Eric Auger
2016-03-01 18:27   ` Eric Auger
2016-03-01 18:27   ` Eric Auger
2016-03-01 18:27 ` [RFC v5 03/17] iommu: introduce a reserved iova cookie Eric Auger
2016-03-01 18:27   ` Eric Auger
2016-03-01 18:27   ` Eric Auger
2016-03-03 16:26   ` Julien Grall
2016-03-03 16:26     ` Julien Grall
2016-03-03 16:26     ` Julien Grall
2016-03-29 17:26     ` Eric Auger
2016-03-29 17:26       ` Eric Auger
2016-03-01 18:27 ` [RFC v5 04/17] dma-reserved-iommu: alloc/free_reserved_iova_domain Eric Auger
2016-03-01 18:27   ` Eric Auger
2016-03-01 18:27   ` Eric Auger
2016-03-01 18:27 ` [RFC v5 05/17] dma-reserved-iommu: reserved binding rb-tree and helpers Eric Auger
2016-03-01 18:27   ` Eric Auger
2016-03-01 18:27   ` Eric Auger
2016-03-01 18:27 ` [RFC v5 06/17] dma-reserved-iommu: iommu_get/put_single_reserved Eric Auger
2016-03-01 18:27   ` Eric Auger
2016-03-01 18:27   ` Eric Auger
2016-03-10 11:52   ` Jean-Philippe Brucker
2016-03-10 11:52     ` Jean-Philippe Brucker
2016-03-10 11:52     ` Jean-Philippe Brucker
2016-03-29 17:07     ` Eric Auger
2016-03-29 17:07       ` Eric Auger
2016-03-29 17:07       ` Eric Auger
2016-03-01 18:27 ` [RFC v5 07/17] dma-reserved-iommu: iommu_unmap_reserved Eric Auger
2016-03-01 18:27   ` Eric Auger
2016-03-01 18:27   ` Eric Auger
2016-03-01 18:27 ` [RFC v5 08/17] msi: Add a new MSI_FLAG_IRQ_REMAPPING flag Eric Auger
2016-03-01 18:27   ` Eric Auger
2016-03-01 18:27   ` Eric Auger
2016-03-01 18:27 ` Eric Auger [this message]
2016-03-01 18:27   ` [RFC v5 09/17] irqchip/gic-v3-its: ITS advertises MSI_FLAG_IRQ_REMAPPING Eric Auger
2016-03-01 18:27   ` Eric Auger
2016-03-01 18:27 ` [RFC v5 10/17] msi: export msi_get_domain_info Eric Auger
2016-03-01 18:27   ` Eric Auger
2016-03-01 18:27   ` Eric Auger
2016-03-01 18:27 ` [RFC v5 11/17] msi: msi_compose wrapper Eric Auger
2016-03-01 18:27   ` Eric Auger
2016-03-01 18:27   ` Eric Auger
2016-03-01 18:27 ` [RFC v5 12/17] msi: IOMMU map the doorbell address when needed Eric Auger
2016-03-01 18:27   ` Eric Auger
2016-03-01 18:27 ` [RFC v5 13/17] vfio: introduce VFIO_IOVA_RESERVED vfio_dma type Eric Auger
2016-03-01 18:27   ` Eric Auger
2016-03-01 18:27   ` Eric Auger
2016-03-01 18:27 ` [RFC v5 14/17] vfio: allow the user to register reserved iova range for MSI mapping Eric Auger
2016-03-01 18:27   ` Eric Auger
2016-03-01 18:27   ` Eric Auger
2016-03-01 18:27 ` [RFC v5 15/17] vfio/type1: also check IRQ remapping capability at msi domain Eric Auger
2016-03-01 18:27   ` Eric Auger
2016-03-01 18:27   ` Eric Auger
2016-03-01 18:27 ` [RFC v5 16/17] iommu/arm-smmu: do not advertise IOMMU_CAP_INTR_REMAP Eric Auger
2016-03-01 18:27   ` Eric Auger
2016-03-01 18:27   ` Eric Auger
2016-03-01 18:27 ` [RFC v5 17/17] vfio/type1: return MSI mapping requirements with VFIO_IOMMU_GET_INFO Eric Auger
2016-03-01 18:27   ` Eric Auger
2016-03-01 18:27   ` Eric Auger
2016-03-02  8:11 ` [RFC v5 00/17] KVM PCIe/MSI passthrough on ARM/ARM64 Jaggi, Manish
2016-03-02  8:11   ` Jaggi, Manish
2016-03-02  8:11   ` Jaggi, Manish
2016-03-02 12:30   ` Eric Auger
2016-03-02 12:30     ` Eric Auger
2016-03-02 12:30     ` Eric Auger

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