iommu/amd: Initialize amd_iommu_last_bdf for DEV_ALL

Also initialize the amd_iommu_last_bdf variable when a
IVHD_DEV_ALL entry is found in the ACPI table.

Signed-off-by: Joerg Roedel <jroedel@suse.de>

1 files changed, 4 insertions, 0 deletions

diff --git a/drivers/iommu/amd_iommu_init.c b/drivers/iommu/amd_iommu_init.c
index 9c6efcb6527e..eca678242e4d 100644
--- a/drivers/iommu/amd_iommu_init.c
+++ b/drivers/iommu/amd_iommu_init.c
@@ -441,6 +441,10 @@ static int __init find_last_devid_from_ivhd(struct ivhd_header *h)
         while (p < end) {
                 dev = (struct ivhd_entry *)p;
                 switch (dev->type) {
+                case IVHD_DEV_ALL:
+                        /* Use maximum BDF value for DEV_ALL */
+                        update_last_devid(0xffff);
+                        break;
                 case IVHD_DEV_SELECT:
                 case IVHD_DEV_RANGE_END:
                 case IVHD_DEV_ALIAS: