From 6042385149a0fb3f4a51d264fc3dc42775819c79 Mon Sep 17 00:00:00 2001 From: Song Gao Date: Fri, 26 Apr 2024 17:15:42 +0800 Subject: [PATCH] hw/loongarch: Init efi_fdt table The efi_system_table adds a efi_fdt configuration table. Signed-off-by: Song Gao Reviewed-by: Bibo Mao Message-Id: <20240426091551.2397867-9-gaosong@loongson.cn> --- hw/loongarch/boot.c | 11 +++++++++++ hw/loongarch/virt.c | 6 ++---- include/hw/loongarch/boot.h | 4 ++++ include/hw/loongarch/virt.h | 2 ++ 4 files changed, 19 insertions(+), 4 deletions(-) diff --git a/hw/loongarch/boot.c b/hw/loongarch/boot.c index c8b3e742b4..7d1630b2e7 100644 --- a/hw/loongarch/boot.c +++ b/hw/loongarch/boot.c @@ -113,6 +113,16 @@ 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 *)FDT_BASE; + systab->nr_tables = 3; +} + static void init_systab(struct loongarch_boot_info *info, void *p, void *start) { void *bp_tables_start; @@ -138,6 +148,7 @@ static void init_systab(struct loongarch_boot_info *info, void *p, void *start) sizeof(efi_memory_desc_t) * memmap_entries, 64 * KiB); init_efi_initrd_table(systab, p, start); p += ROUND_UP(sizeof(struct efi_initrd), 64 * KiB); + init_efi_fdt_table(systab); systab->tables = (struct efi_configuration_table *)(bp_tables_start - start); } diff --git a/hw/loongarch/virt.c b/hw/loongarch/virt.c index 708aa8bc60..42e5df8a24 100644 --- a/hw/loongarch/virt.c +++ b/hw/loongarch/virt.c @@ -727,7 +727,6 @@ static void loongarch_init(MachineState *machine) int nb_numa_nodes = machine->numa_state->num_nodes; NodeInfo *numa_info = machine->numa_state->nodes; int i; - hwaddr fdt_base; const CPUArchIdList *possible_cpus; MachineClass *mc = MACHINE_GET_CLASS(machine); CPUState *cpu; @@ -857,12 +856,11 @@ static void loongarch_init(MachineState *machine) * Put the FDT into the memory map as a ROM image: this will ensure * the FDT is copied again upon reset, even if addr points into RAM. */ - fdt_base = 1 * MiB; qemu_fdt_dumpdtb(machine->fdt, lams->fdt_size); - rom_add_blob_fixed_as("fdt", machine->fdt, lams->fdt_size, fdt_base, + rom_add_blob_fixed_as("fdt", machine->fdt, lams->fdt_size, FDT_BASE, &address_space_memory); qemu_register_reset_nosnapshotload(qemu_fdt_randomize_seeds, - rom_ptr_for_as(&address_space_memory, fdt_base, lams->fdt_size)); + rom_ptr_for_as(&address_space_memory, FDT_BASE, lams->fdt_size)); lams->bootinfo.ram_size = ram_size; loongarch_load_kernel(machine, &lams->bootinfo); diff --git a/include/hw/loongarch/boot.h b/include/hw/loongarch/boot.h index 42d1ee3663..4ebcc89dcf 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; diff --git a/include/hw/loongarch/virt.h b/include/hw/loongarch/virt.h index 8a9fe4053d..4e14bf6060 100644 --- a/include/hw/loongarch/virt.h +++ b/include/hw/loongarch/virt.h @@ -35,6 +35,8 @@ #define COMMAND_LINE_SIZE 512 +#define FDT_BASE 0x100000 + extern struct memmap_entry *memmap_table; extern unsigned memmap_entries;