On 2024/3/8 上午12:48, Song Gao wrote:
> Signed-off-by: Song Gao <gaosong@loongson.cn>
> Message-Id: <20240301093839.663947-9-gaosong@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 <maobibo@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;
>