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/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
* Definitions for LoongArch boot.
*
* Copyright (C) 2023 Loongson Technology Corporation Limited
*/
#ifndef HW_LOONGARCH_BOOT_H
#define HW_LOONGARCH_BOOT_H
/* UEFI 2.10 */
#define EFI_SYSTEM_TABLE_SIGNATURE 0x5453595320494249
#define EFI_2_100_SYSTEM_TABLE_REVISION ((2<<16) | (100))
#define EFI_SPECIFICATION_VERSION EFI_SYSTEM_TABLE_REVISION
#define EFI_SYSTEM_TABLE_REVISION EFI_2_100_SYSTEM_TABLE_REVISION
#define FW_VERSION 0x1
#define FW_PATCHLEVEL 0x0
typedef struct {
uint8_t b[16];
} efi_guid_t QEMU_ALIGNED(8);
#define EFI_GUID(a, b, c, d...) (efi_guid_t){ { \
(a) & 0xff, ((a) >> 8) & 0xff, ((a) >> 16) & 0xff, ((a) >> 24) & 0xff, \
(b) & 0xff, ((b) >> 8) & 0xff, \
(c) & 0xff, ((c) >> 8) & 0xff, d } }
#define LINUX_EFI_BOOT_MEMMAP_GUID \
EFI_GUID(0x800f683f, 0xd08b, 0x423a, 0xa2, 0x93, \
0x96, 0x5c, 0x3c, 0x6f, 0xe2, 0xb4)
#define LINUX_EFI_INITRD_MEDIA_GUID \
EFI_GUID(0x5568e427, 0x68fc, 0x4f3d, 0xac, 0x74, \
0xca, 0x55, 0x52, 0x31, 0xcc, 0x68)
#define DEVICE_TREE_GUID \
EFI_GUID(0xb1b621d5, 0xf19c, 0x41a5, 0x83, 0x0b, \
0xd9, 0x15, 0x2c, 0x69, 0xaa, 0xe0)
struct efi_config_table {
efi_guid_t guid;
uint64_t *ptr;
const char name[16];
};
typedef struct {
uint64_t signature;
uint32_t revision;
uint32_t headersize;
uint32_t crc32;
uint32_t reserved;
} efi_table_hdr_t;
struct efi_configuration_table {
efi_guid_t guid;
void *table;
};
struct efi_system_table {
efi_table_hdr_t hdr;
uint64_t fw_vendor; /* physical addr of CHAR16 vendor string */
uint32_t fw_revision;
uint64_t con_in_handle;
uint64_t *con_in;
uint64_t con_out_handle;
uint64_t *con_out;
uint64_t stderr_handle;
uint64_t stderr_placeholder;
uint64_t *runtime;
uint64_t *boottime;
uint64_t nr_tables;
struct efi_configuration_table *tables;
};
typedef struct {
uint32_t type;
uint32_t pad;
uint64_t phys_addr;
uint64_t virt_addr;
uint64_t num_pages;
uint64_t attribute;
} efi_memory_desc_t;
struct efi_boot_memmap {
uint64_t map_size;
uint64_t desc_size;
uint32_t desc_ver;
uint64_t map_key;
uint64_t buff_size;
efi_memory_desc_t map[32];
};
struct efi_initrd {
uint64_t base;
uint64_t size;
};
struct loongarch_boot_info {
uint64_t ram_size;
const char *kernel_filename;
const char *kernel_cmdline;
const char *initrd_filename;
uint64_t a0, a1, a2;
};
extern struct memmap_entry *memmap_table;
extern unsigned memmap_entries;
struct memmap_entry {
uint64_t address;
uint64_t length;
uint32_t type;
uint32_t reserved;
};
void loongarch_load_kernel(MachineState *ms, struct loongarch_boot_info *info);
#endif /* HW_LOONGARCH_BOOT_H */
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