From: Joerg Roedel <jroedel@suse.de>
Date: Tue, 20 Oct 2015 15:33:43 +0000 (+0200)
Subject: iommu/amd: Initialize amd_iommu_last_bdf for DEV_ALL
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=d1259416985513ba97f75a63ecf5bc75592a4b8d;p=linux-beck.git

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 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: