[PATCH v8 05/18] iommu: Only map direct mapped regions
From: eric.auger@redhat.com (Eric Auger)
Date: 2017-01-11 09:47:31
Also in:
kvm, linux-iommu, lkml
Subsystem:
iommu subsystem, the rest · Maintainers:
Joerg Roedel, Will Deacon, Linus Torvalds
As we introduced new reserved region types which do not require mapping, let's make sure we only map direct mapped regions. Signed-off-by: Eric Auger <eric.auger@redhat.com> --- v3 -> v4: - use region's type and reword commit message and title --- drivers/iommu/iommu.c | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c
index 927878d..41c1906 100644
--- a/drivers/iommu/iommu.c
+++ b/drivers/iommu/iommu.c@@ -343,6 +343,9 @@ static int iommu_group_create_direct_mappings(struct iommu_group *group, start = ALIGN(entry->start, pg_size); end = ALIGN(entry->start + entry->length, pg_size); + if (entry->type != IOMMU_RESV_DIRECT) + continue; + for (addr = start; addr < end; addr += pg_size) { phys_addr_t phys_addr;
--
1.9.1