Commit cfb31f19 authored Nov 08, 2024 by Yi Liu Committed by Joerg Roedel Nov 08, 2024

iommu/vt-d: Make intel_svm_set_dev_pasid() support domain replacement



Make intel_svm_set_dev_pasid() support replacement.

Signed-off-by: Yi Liu <yi.l.liu@intel.com>
Link: https://lore.kernel.org/r/20241107122234.7424-10-yi.l.liu@intel.com


Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>

parent c33e2086

drivers/iommu/intel/iommu.c

+4 −4

Original line number	Diff line number	Diff line
		@@ -1752,7 +1752,7 @@ static void domain_context_clear_one(struct device_domain_info *info, u8 bus, u8
		intel_context_flush_present(info, context, did, true);
		}

		static int __domain_setup_first_level(struct intel_iommu *iommu,
		int __domain_setup_first_level(struct intel_iommu *iommu,
		struct device *dev, ioasid_t pasid,
		u16 did, pgd_t *pgd, int flags,
		struct iommu_domain *old)

drivers/iommu/intel/iommu.h

+5 −0

Original line number	Diff line number	Diff line
		@@ -1250,6 +1250,11 @@ domain_add_dev_pasid(struct iommu_domain *domain,
		void domain_remove_dev_pasid(struct iommu_domain *domain,
		struct device *dev, ioasid_t pasid);

		int __domain_setup_first_level(struct intel_iommu *iommu,
		struct device *dev, ioasid_t pasid,
		u16 did, pgd_t *pgd, int flags,
		struct iommu_domain *old);

		int dmar_ir_support(void);

		void iommu_flush_write_buffer(struct intel_iommu *iommu);

drivers/iommu/intel/svm.c

+3 −2

Original line number	Diff line number	Diff line
		@@ -127,8 +127,9 @@ static int intel_svm_set_dev_pasid(struct iommu_domain *domain,

		/* Setup the pasid table: */
		sflags = cpu_feature_enabled(X86_FEATURE_LA57) ? PASID_FLAG_FL5LP : 0;
		ret = intel_pasid_setup_first_level(iommu, dev, mm->pgd, pasid,
		FLPT_DEFAULT_DID, sflags);
		ret = __domain_setup_first_level(iommu, dev, pasid,
		FLPT_DEFAULT_DID, mm->pgd,
		sflags, old);
		if (ret)
		goto out_remove_dev_pasid;