@@ -355,6 +355,16 @@ typedef struct IOMMUMemoryRegionClass {
* @iommu: the IOMMUMemoryRegion
*/
int (*num_indexes)(IOMMUMemoryRegion *iommu);
+
+ /*
+ * Set supported IOMMU page size
+ *
+ * Optional method: if this is supported then set page size that
+ * can be supported by IOMMU. This is called to set supported page
+ * size as per host Linux.
+ */
+ void (*iommu_set_page_size_mask)(IOMMUMemoryRegion *iommu,
+ uint64_t page_size_mask);
} IOMMUMemoryRegionClass;
typedef struct CoalescedMemoryRange CoalescedMemoryRange;
@@ -1363,6 +1373,16 @@ int memory_region_iommu_attrs_to_index(IOMMUMemoryRegion *iommu_mr,
*/
int memory_region_iommu_num_indexes(IOMMUMemoryRegion *iommu_mr);
+/**
+ * memory_region_iommu_set_page_size_mask: set the supported pages
+ * size by iommu.
+ *
+ * @iommu_mr: the memory region
+ * @page_size_mask: supported page size mask
+ */
+void memory_region_iommu_set_page_size_mask(IOMMUMemoryRegion *iommu_mr,
+ uint64_t page_size_mask);
+
/**
* memory_region_name: get a memory region's name
*
@@ -1833,6 +1833,16 @@ static int memory_region_update_iommu_notify_flags(IOMMUMemoryRegion *iommu_mr,
return ret;
}
+void memory_region_iommu_set_page_size_mask(IOMMUMemoryRegion *iommu_mr,
+ uint64_t page_size_mask)
+{
+ IOMMUMemoryRegionClass *imrc = IOMMU_MEMORY_REGION_GET_CLASS(iommu_mr);
+
+ if (imrc->iommu_set_page_size_mask) {
+ imrc->iommu_set_page_size_mask(iommu_mr, page_size_mask);
+ }
+}
+
int memory_region_register_iommu_notifier(MemoryRegion *mr,
IOMMUNotifier *n, Error **errp)
{
Allow to set page size mask to be supported by iommu. This is required to expose page size mask compatible with host with virtio-iommu. Signed-off-by: Bharat Bhushan <bbhushan2@marvell.com> --- v7->v8: - new patch include/exec/memory.h | 20 ++++++++++++++++++++ memory.c | 10 ++++++++++ 2 files changed, 30 insertions(+)