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-rw-r--r--arch/x86/kernel/amd_iommu.c8
1 files changed, 6 insertions, 2 deletions
diff --git a/arch/x86/kernel/amd_iommu.c b/arch/x86/kernel/amd_iommu.c
index 093bd526c94..b74b2124758 100644
--- a/arch/x86/kernel/amd_iommu.c
+++ b/arch/x86/kernel/amd_iommu.c
@@ -2047,10 +2047,10 @@ static void prealloc_protection_domains(void)
struct pci_dev *dev = NULL;
struct dma_ops_domain *dma_dom;
struct amd_iommu *iommu;
- u16 devid;
+ u16 devid, __devid;
while ((dev = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, dev)) != NULL) {
- devid = calc_devid(dev->bus->number, dev->devfn);
+ __devid = devid = calc_devid(dev->bus->number, dev->devfn);
if (devid > amd_iommu_last_bdf)
continue;
devid = amd_iommu_alias_table[devid];
@@ -2065,6 +2065,10 @@ static void prealloc_protection_domains(void)
init_unity_mappings_for_device(dma_dom, devid);
dma_dom->target_dev = devid;
+ attach_device(iommu, &dma_dom->domain, devid);
+ if (__devid != devid)
+ attach_device(iommu, &dma_dom->domain, __devid);
+
list_add_tail(&dma_dom->list, &iommu_pd_list);
}
}