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iommu/arm-smmu-v3: Add a global static BLOCKED domain

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Using the same design as the IDENTITY domain install an
STRTAB_STE_0_CFG_ABORT STE.

Reviewed-by: Michael Shavit <mshavit@google.com>
Reviewed-by: Nicolin Chen <nicolinc@nvidia.com>
Tested-by: Shameer Kolothum <shameerali.kolothum.thodi@huawei.com>
Tested-by: Nicolin Chen <nicolinc@nvidia.com>
Tested-by: Moritz Fischer <moritzf@google.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Link: https://lore.kernel.org/r/13-v6-96275f25c39d+2d4-smmuv3_newapi_p1_jgg@nvidia.com
Signed-off-by: Will Deacon <will@kernel.org>
This commit is contained in:
Jason Gunthorpe
2024-02-26 13:07:24 -04:00
committed by Will Deacon
parent 12dacfb5b9
commit 352bd64cd8
1 changed files with 19 additions and 0 deletions
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19
drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c
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@@ -2674,6 +2674,24 @@ static struct iommu_domain arm_smmu_identity_domain = {
.ops = &arm_smmu_identity_ops,
};
static int arm_smmu_attach_dev_blocked(struct iommu_domain *domain,
struct device *dev)
{
struct arm_smmu_ste ste;
arm_smmu_make_abort_ste(&ste);
return arm_smmu_attach_dev_ste(dev, &ste);
}
static const struct iommu_domain_ops arm_smmu_blocked_ops = {
.attach_dev = arm_smmu_attach_dev_blocked,
};
static struct iommu_domain arm_smmu_blocked_domain = {
.type = IOMMU_DOMAIN_BLOCKED,
.ops = &arm_smmu_blocked_ops,
};
static int arm_smmu_map_pages(struct iommu_domain *domain, unsigned long iova,
phys_addr_t paddr, size_t pgsize, size_t pgcount,
int prot, gfp_t gfp, size_t *mapped)
@@ -3064,6 +3082,7 @@ static void arm_smmu_remove_dev_pasid(struct device *dev, ioasid_t pasid)
static struct iommu_ops arm_smmu_ops = {
.identity_domain = &arm_smmu_identity_domain,
.blocked_domain = &arm_smmu_blocked_domain,
.capable = arm_smmu_capable,
.domain_alloc = arm_smmu_domain_alloc,
.probe_device = arm_smmu_probe_device,