xref: /openbmc/qemu/include/hw/acpi/vmgenid.h (revision 2e1cacfb)
1 #ifndef ACPI_VMGENID_H
2 #define ACPI_VMGENID_H
3 
4 #include "hw/acpi/bios-linker-loader.h"
5 #include "hw/qdev-core.h"
6 #include "qemu/uuid.h"
7 #include "qom/object.h"
8 
9 #define TYPE_VMGENID           "vmgenid"
10 #define VMGENID_GUID             "guid"
11 #define VMGENID_GUID_FW_CFG_FILE      "etc/vmgenid_guid"
12 #define VMGENID_ADDR_FW_CFG_FILE      "etc/vmgenid_addr"
13 
14 #define VMGENID_FW_CFG_SIZE      4096 /* Occupy a page of memory */
15 #define VMGENID_GUID_OFFSET      40   /* allow space for
16                                        * OVMF SDT Header Probe Suppressor
17                                        */
18 
19 OBJECT_DECLARE_SIMPLE_TYPE(VmGenIdState, VMGENID)
20 
21 struct VmGenIdState {
22     DeviceState parent_obj;
23     QemuUUID guid;                /* The 128-bit GUID seen by the guest */
24     uint8_t vmgenid_addr_le[8];   /* Address of the GUID (little-endian) */
25 };
26 
27 /* returns NULL unless there is exactly one device */
28 static inline Object *find_vmgenid_dev(void)
29 {
30     return object_resolve_path_type("", TYPE_VMGENID, NULL);
31 }
32 
33 void vmgenid_build_acpi(VmGenIdState *vms, GArray *table_data, GArray *guid,
34                         BIOSLinker *linker, const char *oem_id);
35 void vmgenid_add_fw_cfg(VmGenIdState *vms, FWCfgState *s, GArray *guid);
36 
37 #endif
38