diff mbox series

[v1,08/17] hw/loongarch: Init efi_fdt table

Message ID 20231208090042.2672425-9-gaosong@loongson.cn (mailing list archive)
State New, archived
Headers show
Series Add boot LoongArch elf kernel with FDT | expand

Commit Message

gaosong Dec. 8, 2023, 9 a.m. UTC 
Signed-off-by: Song Gao <gaosong@loongson.cn>
---
 hw/loongarch/boot.c         | 11 +++++++++++
 include/hw/loongarch/boot.h |  4 ++++
 2 files changed, 15 insertions(+)
diff mbox series

Patch

diff --git a/hw/loongarch/boot.c b/hw/loongarch/boot.c
index 991df2cc14..f2e13ad7e3 100644
--- a/hw/loongarch/boot.c
+++ b/hw/loongarch/boot.c
@@ -142,6 +142,16 @@  static void init_efi_initrd_table(struct efi_system_table *systab)
     g_free(initrd_table);
 }
 
+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 */
+    systab->nr_tables = 3;
+}
+
 static void init_systab(struct loongarch_boot_info *info)
 {
     struct efi_system_table *systab;
@@ -160,6 +170,7 @@  static void init_systab(struct loongarch_boot_info *info)
 
     init_efi_boot_memmap(systab);
     init_efi_initrd_table(systab);
+    init_efi_fdt_table(systab);
 
     rom_add_blob_fixed("tables_rom", efi_tables,
                        loader_rommap[EFI_TABLES].size,
diff --git a/include/hw/loongarch/boot.h b/include/hw/loongarch/boot.h
index e482b829f7..ce1cd51c01 100644
--- a/include/hw/loongarch/boot.h
+++ b/include/hw/loongarch/boot.h
@@ -36,6 +36,10 @@  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;