@@ -677,6 +677,7 @@ static int vfio_connect_container(VFIOGroup *group, AddressSpace *as)
if (ioctl(fd, VFIO_CHECK_EXTENSION, VFIO_TYPE1_IOMMU) ||
ioctl(fd, VFIO_CHECK_EXTENSION, VFIO_TYPE1v2_IOMMU)) {
bool v2 = !!ioctl(fd, VFIO_CHECK_EXTENSION, VFIO_TYPE1v2_IOMMU);
+ struct vfio_iommu_type1_info info;
ret = ioctl(group->fd, VFIO_GROUP_SET_CONTAINER, &fd);
if (ret) {
@@ -702,6 +703,15 @@ static int vfio_connect_container(VFIOGroup *group, AddressSpace *as)
*/
container->min_iova = 0;
container->max_iova = (hwaddr)-1;
+
+ /* Assume just 4K IOVA page size */
+ container->iova_pgsizes = 0x1000;
+ info.argsz = sizeof(info);
+ ret = ioctl(fd, VFIO_IOMMU_GET_INFO, &info);
+ /* Ignore errors */
+ if ((ret == 0) && (info.flags & VFIO_IOMMU_INFO_PGSIZES)) {
+ container->iova_pgsizes = info.iova_pgsizes;
+ }
} else if (ioctl(fd, VFIO_CHECK_EXTENSION, VFIO_SPAPR_TCE_IOMMU)) {
struct vfio_iommu_spapr_tce_info info;
@@ -744,6 +754,9 @@ static int vfio_connect_container(VFIOGroup *group, AddressSpace *as)
}
container->min_iova = info.dma32_window_start;
container->max_iova = container->min_iova + info.dma32_window_size - 1;
+
+ /* Assume just 4K IOVA pages for now */
+ container->iova_pgsizes = 0x1000;
} else {
error_report("vfio: No available IOMMU models");
ret = -EINVAL;
@@ -71,6 +71,7 @@ typedef struct VFIOContainer {
* future
*/
hwaddr min_iova, max_iova;
+ uint64_t iova_pgsizes;
QLIST_HEAD(, VFIOGuestIOMMU) giommu_list;
QLIST_HEAD(, VFIOGroup) group_list;
QLIST_ENTRY(VFIOContainer) next;