diff options
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/x86/Kconfig | 4 | ||||
| -rw-r--r-- | arch/x86/kernel/amd_iommu.c | 7 |
2 files changed, 9 insertions, 2 deletions
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index 748e50a1a152..3f27e5c0c9c9 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -1837,8 +1837,8 @@ config PCI_MMCONFIG config DMAR bool "Support for DMA Remapping Devices (EXPERIMENTAL)" - depends on X86_64 && PCI_MSI && ACPI && EXPERIMENTAL - ---help--- + depends on PCI_MSI && ACPI && EXPERIMENTAL + help DMA remapping (DMAR) devices support enables independent address translations for Direct Memory Access (DMA) from devices. These DMA remapping devices are reported via ACPI tables diff --git a/arch/x86/kernel/amd_iommu.c b/arch/x86/kernel/amd_iommu.c index c5962fe3796f..a97db99dad52 100644 --- a/arch/x86/kernel/amd_iommu.c +++ b/arch/x86/kernel/amd_iommu.c @@ -1928,6 +1928,12 @@ static phys_addr_t amd_iommu_iova_to_phys(struct iommu_domain *dom, return paddr; } +static int amd_iommu_domain_has_cap(struct iommu_domain *domain, + unsigned long cap) +{ + return 0; +} + static struct iommu_ops amd_iommu_ops = { .domain_init = amd_iommu_domain_init, .domain_destroy = amd_iommu_domain_destroy, @@ -1936,5 +1942,6 @@ static struct iommu_ops amd_iommu_ops = { .map = amd_iommu_map_range, .unmap = amd_iommu_unmap_range, .iova_to_phys = amd_iommu_iova_to_phys, + .domain_has_cap = amd_iommu_domain_has_cap, }; |