On 2024/3/8 上午12:48, Song Gao wrote:
Signed-off-by: Song Gao <gaos...@loongson.cn> Message-Id: <20240301093839.663947-9-gaos...@loongson.cn> --- hw/loongarch/boot.c | 11 +++++++++++ include/hw/loongarch/boot.h | 4 ++++ 2 files changed, 15 insertions(+) diff --git a/hw/loongarch/boot.c b/hw/loongarch/boot.c index 6126a37858..c6c6e6d194 100644 --- a/hw/loongarch/boot.c +++ b/hw/loongarch/boot.c @@ -112,6 +112,16 @@ static void init_efi_initrd_table(struct efi_system_table *systab, initrd_table->size = initrd_size; }+static void init_efi_fdt_table(struct efi_system_table *systab)+{ + efi_guid_t tbl_guid = DEVICE_TREE_GUID; + + /* efi_configuration_table 3 */ + guidcpy(&systab->tables[2].guid, &tbl_guid); + systab->tables[2].table = (void *)0x100000; /* fdt_base 1MiB */
Can we use macro for 0x100000? otherwise LGTM Reviewed-by: Bibo Mao <maob...@loongson.cn>
+ systab->nr_tables = 3; +} + static void init_systab(struct loongarch_boot_info *info, void *p, void *start) { void *bp_tables_start; @@ -137,6 +147,7 @@ static void init_systab(struct loongarch_boot_info *info, void *p, void *start) sizeof(efi_memory_desc_t) * memmap_entries, 64); init_efi_initrd_table(systab, p, start); p += ROUND_UP(sizeof(struct efi_initrd), 64); + init_efi_fdt_table(systab);systab->tables = (struct efi_configuration_table *)(bp_tables_start - start);} diff --git a/include/hw/loongarch/boot.h b/include/hw/loongarch/boot.h index ddcb279874..9de673a0fd 100644 --- a/include/hw/loongarch/boot.h +++ b/include/hw/loongarch/boot.h @@ -34,6 +34,10 @@ typedef struct { 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;
