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From: Jason Gunthorpe <jgg@nvidia.com>
To: Alexander Gordeev <agordeev@linux.ibm.com>,
	Alex Williamson <alex.williamson@redhat.com>,
	Lu Baolu <baolu.lu@linux.intel.com>,
	Christian Borntraeger <borntraeger@linux.ibm.com>,
	Cornelia Huck <cohuck@redhat.com>,
	David Woodhouse <dwmw2@infradead.org>,
	Gerald Schaefer <gerald.schaefer@linux.ibm.com>,
	Vasily Gorbik <gor@linux.ibm.com>,
	Heiko Carstens <hca@linux.ibm.com>,
	iommu@lists.linux.dev, Joerg Roedel <joro@8bytes.org>,
	Kevin Tian <kevin.tian@intel.com>,
	kvm@vger.kernel.org, linux-s390@vger.kernel.org,
	Marc Zyngier <maz@kernel.org>,
	Robin Murphy <robin.murphy@arm.com>,
	Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>,
	Sven Schnelle <svens@linux.ibm.com>,
	Thomas Gleixner <tglx@linutronix.de>,
	Will Deacon <will@kernel.org>
Cc: Bharat Bhushan <bharat.bhushan@nxp.com>,
	Christian Borntraeger <borntraeger@de.ibm.com>,
	Eric Auger <eric.auger@redhat.com>,
	Eric Farman <farman@linux.ibm.com>,
	Marc Zyngier <marc.zyngier@arm.com>,
	Matthew Rosato <mjrosato@linux.ibm.com>,
	Tomasz Nowicki <tomasz.nowicki@caviumnetworks.com>,
	Will Deacon <will.deacon@arm.com>
Subject: [PATCH iommufd v2 9/9] iommu: Remove IOMMU_CAP_INTR_REMAP
Date: Mon, 12 Dec 2022 14:46:03 -0400	[thread overview]
Message-ID: <9-v2-10ad79761833+40588-secure_msi_jgg@nvidia.com> (raw)
In-Reply-To: <0-v2-10ad79761833+40588-secure_msi_jgg@nvidia.com>

No iommu driver implements this any more, get rid of it.

Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
---
 drivers/iommu/iommu.c | 4 +---
 include/linux/iommu.h | 1 -
 2 files changed, 1 insertion(+), 4 deletions(-)

diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c
index adb3f655bf5709..b856bb3ae43fd8 100644
--- a/drivers/iommu/iommu.c
+++ b/drivers/iommu/iommu.c
@@ -1898,9 +1898,7 @@ bool iommu_group_has_isolated_msi(struct iommu_group *group)
 
 	mutex_lock(&group->mutex);
 	list_for_each_entry(group_dev, &group->devices, list)
-		ret &= msi_device_has_isolated_msi(group_dev->dev) ||
-		       device_iommu_capable(group_dev->dev,
-					    IOMMU_CAP_INTR_REMAP);
+		ret &= msi_device_has_isolated_msi(group_dev->dev);
 	mutex_unlock(&group->mutex);
 	return ret;
 }
diff --git a/include/linux/iommu.h b/include/linux/iommu.h
index 1753e819a63250..623ee6f8fdaa3b 100644
--- a/include/linux/iommu.h
+++ b/include/linux/iommu.h
@@ -120,7 +120,6 @@ static inline bool iommu_is_dma_domain(struct iommu_domain *domain)
 
 enum iommu_cap {
 	IOMMU_CAP_CACHE_COHERENCY,	/* IOMMU_CACHE is supported */
-	IOMMU_CAP_INTR_REMAP,		/* IOMMU supports interrupt isolation */
 	IOMMU_CAP_NOEXEC,		/* IOMMU_NOEXEC flag */
 	IOMMU_CAP_PRE_BOOT_PROTECTION,	/* Firmware says it used the IOMMU for
 					   DMA protection and we should too */
-- 
2.38.1


  parent reply	other threads:[~2022-12-12 18:46 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-12-12 18:45 [PATCH iommufd v2 0/9] Remove IOMMU_CAP_INTR_REMAP Jason Gunthorpe
2022-12-12 18:45 ` [PATCH iommufd v2 1/9] irq: Add msi_device_has_isolated_msi() Jason Gunthorpe
2022-12-12 18:45 ` [PATCH iommufd v2 2/9] iommu: Add iommu_group_has_isolated_msi() Jason Gunthorpe
2022-12-13 14:37   ` Jason Gunthorpe
2022-12-12 18:45 ` [PATCH iommufd v2 3/9] vfio/type1: Convert to iommu_group_has_isolated_msi() Jason Gunthorpe
2022-12-12 18:45 ` [PATCH iommufd v2 4/9] iommufd: Convert to msi_device_has_isolated_msi() Jason Gunthorpe
2022-12-12 18:45 ` [PATCH iommufd v2 5/9] irq: Remove unused irq_domain_check_msi_remap() code Jason Gunthorpe
2022-12-12 18:46 ` [PATCH iommufd v2 6/9] irq: Rename IRQ_DOMAIN_MSI_REMAP to IRQ_DOMAIN_ISOLATED_MSI Jason Gunthorpe
2022-12-12 18:46 ` [PATCH iommufd v2 7/9] iommu/x86: Replace IOMMU_CAP_INTR_REMAP with IRQ_DOMAIN_FLAG_ISOLATED_MSI Jason Gunthorpe
2022-12-12 18:46 ` [PATCH iommufd v2 8/9] irq/s390: Add arch_is_isolated_msi() for s390 Jason Gunthorpe
2022-12-15  7:39   ` Tian, Kevin
2023-01-05  0:13     ` Jason Gunthorpe
2022-12-19 16:16   ` Matthew Rosato
2022-12-12 18:46 ` Jason Gunthorpe [this message]
2022-12-15  7:39 ` [PATCH iommufd v2 0/9] Remove IOMMU_CAP_INTR_REMAP Tian, Kevin

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