iommu/vt-d: Fix the wrong printing in RHSA parsing

commit b0bb0c22c4db623f2e7b1a471596fbf1c22c6dc5 upstream.

When base address in RHSA structure doesn't match base address in
each DRHD structure, the base address in last DRHD is printed out.

This doesn't make sense when there are multiple DRHD units, fix it
by printing the buggy RHSA's base address.

Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Signed-off-by: Zhenzhong Duan <zhenzhong.duan@gmail.com>
Fixes: fd0c8894893cb ("intel-iommu: Set a more specific taint flag for invalid BIOS DMAR tables")
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/iommu/dmar.c b/drivers/iommu/dmar.c
index d8f5e36..9c41791 100644 (file)
--- a/drivers/iommu/dmar.c
+++ b/drivers/iommu/dmar.c
@@ -486,7 +486,7 @@ static int dmar_parse_one_rhsa(struct acpi_dmar_header *header, void *arg)
        pr_warn(FW_BUG
                "Your BIOS is broken; RHSA refers to non-existent DMAR unit at %llx\n"
                "BIOS vendor: %s; Ver: %s; Product Version: %s\n",
-               drhd->reg_base_addr,
+               rhsa->base_address,
                dmi_get_system_info(DMI_BIOS_VENDOR),
                dmi_get_system_info(DMI_BIOS_VERSION),
                dmi_get_system_info(DMI_PRODUCT_VERSION));