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1 /* SPDX-License-Identifier: GPL-2.0-or-later */
2 /*
3 * Definitions for LoongArch boot.
4 *
5 * Copyright (C) 2023 Loongson Technology Corporation Limited
6 */
7
8 #ifndef HW_LOONGARCH_BOOT_H
9 #define HW_LOONGARCH_BOOT_H
10
11 /* UEFI 2.10 */
12 #define EFI_SYSTEM_TABLE_SIGNATURE 0x5453595320494249
13 #define EFI_2_100_SYSTEM_TABLE_REVISION ((2<<16) | (100))
14 #define EFI_SPECIFICATION_VERSION EFI_SYSTEM_TABLE_REVISION
15 #define EFI_SYSTEM_TABLE_REVISION EFI_2_100_SYSTEM_TABLE_REVISION
16
17 #define FW_VERSION 0x1
18 #define FW_PATCHLEVEL 0x0
19
20 typedef struct {
21 uint8_t b[16];
22 } efi_guid_t QEMU_ALIGNED(8);
23
24 #define EFI_GUID(a, b, c, d...) (efi_guid_t){ { \
25 (a) & 0xff, ((a) >> 8) & 0xff, ((a) >> 16) & 0xff, ((a) >> 24) & 0xff, \
26 (b) & 0xff, ((b) >> 8) & 0xff, \
27 (c) & 0xff, ((c) >> 8) & 0xff, d } }
28
29 #define LINUX_EFI_BOOT_MEMMAP_GUID \
30 EFI_GUID(0x800f683f, 0xd08b, 0x423a, 0xa2, 0x93, \
31 0x96, 0x5c, 0x3c, 0x6f, 0xe2, 0xb4)
32
33 #define LINUX_EFI_INITRD_MEDIA_GUID \
34 EFI_GUID(0x5568e427, 0x68fc, 0x4f3d, 0xac, 0x74, \
35 0xca, 0x55, 0x52, 0x31, 0xcc, 0x68)
36
37 #define DEVICE_TREE_GUID \
38 EFI_GUID(0xb1b621d5, 0xf19c, 0x41a5, 0x83, 0x0b, \
39 0xd9, 0x15, 0x2c, 0x69, 0xaa, 0xe0)
40
41 struct efi_config_table {
42 efi_guid_t guid;
43 uint64_t *ptr;
44 const char name[16];
45 };
46
47 typedef struct {
48 uint64_t signature;
49 uint32_t revision;
50 uint32_t headersize;
51 uint32_t crc32;
52 uint32_t reserved;
53 } efi_table_hdr_t;
54
55 struct efi_configuration_table {
56 efi_guid_t guid;
57 void *table;
58 };
59
60 struct efi_system_table {
61 efi_table_hdr_t hdr;
62 uint64_t fw_vendor; /* physical addr of CHAR16 vendor string */
63 uint32_t fw_revision;
64 uint64_t con_in_handle;
65 uint64_t *con_in;
66 uint64_t con_out_handle;
67 uint64_t *con_out;
68 uint64_t stderr_handle;
69 uint64_t stderr_placeholder;
70 uint64_t *runtime;
71 uint64_t *boottime;
72 uint64_t nr_tables;
73 struct efi_configuration_table *tables;
74 };
75
76 typedef struct {
77 uint32_t type;
78 uint32_t pad;
79 uint64_t phys_addr;
80 uint64_t virt_addr;
81 uint64_t num_pages;
82 uint64_t attribute;
83 } efi_memory_desc_t;
84
85 struct efi_boot_memmap {
86 uint64_t map_size;
87 uint64_t desc_size;
88 uint32_t desc_ver;
89 uint64_t map_key;
90 uint64_t buff_size;
91 efi_memory_desc_t map[32];
92 };
93
94 struct efi_initrd {
95 uint64_t base;
96 uint64_t size;
97 };
98
99 struct loongarch_boot_info {
100 uint64_t ram_size;
101 const char *kernel_filename;
102 const char *kernel_cmdline;
103 const char *initrd_filename;
104 uint64_t a0, a1, a2;
105 uint64_t initrd_addr;
106 uint64_t initrd_size;
107 };
108
109 struct memmap_entry {
110 uint64_t address;
111 uint64_t length;
112 uint32_t type;
113 uint32_t reserved;
114 };
115
116 void loongarch_load_kernel(MachineState *ms, struct loongarch_boot_info *info,
117 uint64_t phys_addr_mask);
118
119 #endif /* HW_LOONGARCH_BOOT_H */