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hw/loongarch: Init efi_system_table

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Add init_systab and set boot_info->a2

Signed-off-by: Song Gao <gaosong@loongson.cn>
Reviewed-by: Bibo Mao <maobibo@loongson.cn>
Message-Id: <20240426091551.2397867-6-gaosong@loongson.cn>
This commit is contained in:
Song Gao 2024-04-26 17:15:39 +08:00
parent 58ee60d2d2
commit 4216baa90d
2 changed files with 70 additions and 0 deletions
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22
hw/loongarch/boot.c
View File

@ -63,6 +63,25 @@ static const unsigned int slave_boot_code[] = {
0x4c000020, /* jirl $zero, $ra,0 */
};
static void init_systab(struct loongarch_boot_info *info, void *p, void *start)
{
struct efi_system_table *systab = p;
info->a2 = p - start;
systab->hdr.signature = EFI_SYSTEM_TABLE_SIGNATURE;
systab->hdr.revision = EFI_SPECIFICATION_VERSION;
systab->hdr.revision = sizeof(struct efi_system_table),
systab->fw_revision = FW_VERSION << 16 | FW_PATCHLEVEL << 8;
systab->runtime = 0;
systab->boottime = 0;
systab->nr_tables = 0;
p += ROUND_UP(sizeof(struct efi_system_table), 64 * KiB);
systab->tables = p;
}
static void init_cmdline(struct loongarch_boot_info *info, void *p, void *start)
{
hwaddr cmdline_addr = p - start;
@ -134,6 +153,7 @@ static void reset_load_elf(void *opaque)
if (cpu == LOONGARCH_CPU(first_cpu)) {
env->gpr[4] = env->boot_info->a0;
env->gpr[5] = env->boot_info->a1;
env->gpr[6] = env->boot_info->a2;
}
cpu_set_pc(CPU(cpu), env->elf_address);
}
@ -178,6 +198,8 @@ static void init_boot_rom(struct loongarch_boot_info *info, void *p)
init_cmdline(info, p, start);
p += COMMAND_LINE_SIZE;
init_systab(info, p, start);
}
static void loongarch_direct_kernel_boot(struct loongarch_boot_info *info)

48
include/hw/loongarch/boot.h
View File

@ -8,6 +8,54 @@
#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);
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;
};
struct loongarch_boot_info {
uint64_t ram_size;
const char *kernel_filename;