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Diffstat (limited to 'arch/loongarch/kernel/efi.c')
-rw-r--r--arch/loongarch/kernel/efi.c30
1 files changed, 29 insertions, 1 deletions
diff --git a/arch/loongarch/kernel/efi.c b/arch/loongarch/kernel/efi.c
index 1f1f755fb425..a31329971133 100644
--- a/arch/loongarch/kernel/efi.c
+++ b/arch/loongarch/kernel/efi.c
@@ -27,8 +27,13 @@
static unsigned long efi_nr_tables;
static unsigned long efi_config_table;
+static unsigned long __initdata boot_memmap = EFI_INVALID_TABLE_ADDR;
+
static efi_system_table_t *efi_systab;
-static efi_config_table_type_t arch_tables[] __initdata = {{},};
+static efi_config_table_type_t arch_tables[] __initdata = {
+ {LINUX_EFI_BOOT_MEMMAP_GUID, &boot_memmap, "MEMMAP" },
+ {},
+};
void __init efi_runtime_init(void)
{
@@ -51,6 +56,7 @@ void __init efi_init(void)
{
int size;
void *config_tables;
+ struct efi_boot_memmap *tbl;
if (!efi_system_table)
return;
@@ -61,6 +67,8 @@ void __init efi_init(void)
return;
}
+ efi_systab_report_header(&efi_systab->hdr, efi_systab->fw_vendor);
+
set_bit(EFI_64BIT, &efi.flags);
efi_nr_tables = efi_systab->nr_tables;
efi_config_table = (unsigned long)efi_systab->tables;
@@ -70,6 +78,26 @@ void __init efi_init(void)
efi_config_parse_tables(config_tables, efi_systab->nr_tables, arch_tables);
early_memunmap(config_tables, efi_nr_tables * size);
+ set_bit(EFI_CONFIG_TABLES, &efi.flags);
+
if (screen_info.orig_video_isVGA == VIDEO_TYPE_EFI)
memblock_reserve(screen_info.lfb_base, screen_info.lfb_size);
+
+ if (boot_memmap == EFI_INVALID_TABLE_ADDR)
+ return;
+
+ tbl = early_memremap_ro(boot_memmap, sizeof(*tbl));
+ if (tbl) {
+ struct efi_memory_map_data data;
+
+ data.phys_map = boot_memmap + sizeof(*tbl);
+ data.size = tbl->map_size;
+ data.desc_size = tbl->desc_size;
+ data.desc_version = tbl->desc_ver;
+
+ if (efi_memmap_init_early(&data) < 0)
+ panic("Unable to map EFI memory map.\n");
+
+ early_memunmap(tbl, sizeof(*tbl));
+ }
}