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>

diff --git a/drivers/iommu/amd_iommu_init.c b/drivers/iommu/amd_iommu_init.c
index 9c6efcb6527e103f0860c632f84162d27b34eccc..eca678242e4de222056e92ac922f503bc021fcb0 100644 (file)
--- 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: