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[PATCH v5 05/17] iommu: Only map direct mapped regions

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  [PATCH v5 05/17] iommu: Only map direct mapped regions Eric Auger <eric.auger@redhat.com> - 2017-01-04 14:50 +0100

#1550803 — [PATCH v5 05/17] iommu: Only map direct mapped regions

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

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