When performing domain_context_mapping or getting dma_pte of a pfn, the
availability of the domain page table directory is ensured. Therefore,
the domain->pgd checkings are unnecessary.
Signed-off-by: Tina Zhang <tina.zhang@intel.com>
Link: https://lore.kernel.org/r/20230406065944.2773296-5-tina.zhang@intel.com
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
int level = agaw_to_level(domain->agaw);
int offset;
- BUG_ON(!domain->pgd);
-
if (!domain_pfn_supported(domain, pfn))
/* Address beyond IOMMU's addressing capabilities. */
return NULL;
pr_debug("Set context mapping for %02x:%02x.%d\n",
bus, PCI_SLOT(devfn), PCI_FUNC(devfn));
- BUG_ON(!domain->pgd);
-
spin_lock(&iommu->lock);
ret = -ENOMEM;
context = iommu_context_addr(iommu, bus, devfn, 1);