diff options
| author | Jason Gunthorpe <jgg@nvidia.com> | 2024-08-29 21:06:12 -0300 |
|---|---|---|
| committer | Joerg Roedel <jroedel@suse.de> | 2024-09-04 11:37:42 +0200 |
| commit | 7a41dcb52f9de6079621fc31c3b84c7fc290934b (patch) | |
| tree | 221eab9b13186a570d4425f7ef8581a683b55304 /drivers/iommu | |
| parent | b0a6c883bcd42eeb0850135e529b34b64d57673c (diff) | |
iommu/amd: Set the pgsize_bitmap correctly
When using io_pgtable the correct pgsize_bitmap is stored in the cfg, both
v1_alloc_pgtable() and v2_alloc_pgtable() set it correctly.
This fixes a bug where the v2 pgtable had the wrong pgsize as
protection_domain_init_v2() would set it and then do_iommu_domain_alloc()
immediately resets it.
Remove the confusing ops.pgsize_bitmap since that is not used if the
driver sets domain.pgsize_bitmap.
Fixes: 134288158a41 ("iommu/amd: Add domain_alloc_user based domain allocation")
Reviewed-by: Vasant Hegde <vasant.hegde@amd.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Link: https://lore.kernel.org/r/3-v2-831cdc4d00f3+1a315-amd_iopgtbl_jgg@nvidia.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'drivers/iommu')
| -rw-r--r-- | drivers/iommu/amd/iommu.c | 28 |
1 files changed, 4 insertions, 24 deletions
diff --git a/drivers/iommu/amd/iommu.c b/drivers/iommu/amd/iommu.c index 70213f94e24c..c90a53a0385d 100644 --- a/drivers/iommu/amd/iommu.c +++ b/drivers/iommu/amd/iommu.c @@ -2264,26 +2264,11 @@ void protection_domain_free(struct protection_domain *domain) kfree(domain); } -static int protection_domain_init_v1(struct protection_domain *domain) -{ - domain->pd_mode = PD_MODE_V1; - return 0; -} - -static int protection_domain_init_v2(struct protection_domain *pdom) -{ - pdom->pd_mode = PD_MODE_V2; - pdom->domain.pgsize_bitmap = AMD_IOMMU_PGSIZES_V2; - - return 0; -} - struct protection_domain *protection_domain_alloc(unsigned int type) { struct io_pgtable_ops *pgtbl_ops; struct protection_domain *domain; int pgtable; - int ret; domain = kzalloc(sizeof(*domain), GFP_KERNEL); if (!domain) @@ -2319,18 +2304,14 @@ struct protection_domain *protection_domain_alloc(unsigned int type) switch (pgtable) { case AMD_IOMMU_V1: - ret = protection_domain_init_v1(domain); + domain->pd_mode = PD_MODE_V1; break; case AMD_IOMMU_V2: - ret = protection_domain_init_v2(domain); + domain->pd_mode = PD_MODE_V2; break; default: - ret = -EINVAL; - break; - } - - if (ret) goto out_err; + } pgtbl_ops = alloc_io_pgtable_ops(pgtable, &domain->iop.pgtbl_cfg, domain); if (!pgtbl_ops) @@ -2383,10 +2364,10 @@ static struct iommu_domain *do_iommu_domain_alloc(unsigned int type, domain->domain.geometry.aperture_start = 0; domain->domain.geometry.aperture_end = dma_max_address(); domain->domain.geometry.force_aperture = true; + domain->domain.pgsize_bitmap = domain->iop.iop.cfg.pgsize_bitmap; if (iommu) { domain->domain.type = type; - domain->domain.pgsize_bitmap = iommu->iommu.ops->pgsize_bitmap; domain->domain.ops = iommu->iommu.ops->default_domain_ops; if (dirty_tracking) @@ -2869,7 +2850,6 @@ const struct iommu_ops amd_iommu_ops = { .device_group = amd_iommu_device_group, .get_resv_regions = amd_iommu_get_resv_regions, .is_attach_deferred = amd_iommu_is_attach_deferred, - .pgsize_bitmap = AMD_IOMMU_PGSIZES, .def_domain_type = amd_iommu_def_domain_type, .dev_enable_feat = amd_iommu_dev_enable_feature, .dev_disable_feat = amd_iommu_dev_disable_feature, |