iommu/amd: Add new map for storing IVHD dev entry type HID
This patch introduces acpihid_map, which is used to store
the new IVHD device entry extracted from BIOS IVRS table.
It also provides a utility function add_acpi_hid_device(),
to add this types of devices to the map.
Signed-off-by: Wan Zongshun <Vincent.Wan@amd.com>
Signed-off-by: Suravee Suthikulpanit <Suravee.Suthikulpanit@amd.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
diff --git a/drivers/iommu/amd_iommu_types.h b/drivers/iommu/amd_iommu_types.h
index 9d32b20..b6b14d2 100644
--- a/drivers/iommu/amd_iommu_types.h
+++ b/drivers/iommu/amd_iommu_types.h
@@ -527,6 +527,19 @@
#endif
};
+#define ACPIHID_UID_LEN 256
+#define ACPIHID_HID_LEN 9
+
+struct acpihid_map_entry {
+ struct list_head list;
+ u8 uid[ACPIHID_UID_LEN];
+ u8 hid[ACPIHID_HID_LEN];
+ u16 devid;
+ u16 root_devid;
+ bool cmd_line;
+ struct iommu_group *group;
+};
+
struct devid_map {
struct list_head list;
u8 id;
@@ -537,6 +550,7 @@
/* Map HPET and IOAPIC ids to the devid used by the IOMMU */
extern struct list_head ioapic_map;
extern struct list_head hpet_map;
+extern struct list_head acpihid_map;
/*
* List with all IOMMUs in the system. This list is not locked because it is