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| author | Ard Biesheuvel <ardb@kernel.org> | 2022-10-11 18:10:39 +0300 |
|---|---|---|
| committer | Ard Biesheuvel <ardb@kernel.org> | 2022-11-09 14:42:02 +0300 |
| commit | 732ea9db9d8a6a0444d18ed810cccb2428d8766b (patch) | |
| tree | 186ea3e313ea11d0d5edae397074828c263e98d6 /drivers/firmware/efi/efi.c | |
| parent | 06064800d92a1adac3717e86cc6ba5f98c0ef40e (diff) | |
| download | linux-732ea9db9d8a6a0444d18ed810cccb2428d8766b.tar.xz | |
efi: libstub: Move screen_info handling to common code
Currently, arm64, RISC-V and LoongArch rely on the fact that struct
screen_info can be accessed directly, due to the fact that the EFI stub
and the core kernel are part of the same image. This will change after a
future patch, so let's ensure that the screen_info handling is able to
deal with this, by adopting the arm32 approach of passing it as a
configuration table. While at it, switch to ACPI reclaim memory to hold
the screen_info data, which is more appropriate for this kind of
allocation.
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Diffstat (limited to 'drivers/firmware/efi/efi.c')
| -rw-r--r-- | drivers/firmware/efi/efi.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/firmware/efi/efi.c b/drivers/firmware/efi/efi.c index a46df5d1d094..951a42d27cf4 100644 --- a/drivers/firmware/efi/efi.c +++ b/drivers/firmware/efi/efi.c @@ -58,6 +58,8 @@ static unsigned long __initdata mem_reserve = EFI_INVALID_TABLE_ADDR; static unsigned long __initdata rt_prop = EFI_INVALID_TABLE_ADDR; static unsigned long __initdata initrd = EFI_INVALID_TABLE_ADDR; +extern unsigned long screen_info_table; + struct mm_struct efi_mm = { .mm_mt = MTREE_INIT_EXT(mm_mt, MM_MT_FLAGS, efi_mm.mmap_lock), .mm_users = ATOMIC_INIT(2), @@ -547,6 +549,9 @@ static const efi_config_table_type_t common_tables[] __initconst = { #ifdef CONFIG_EFI_COCO_SECRET {LINUX_EFI_COCO_SECRET_AREA_GUID, &efi.coco_secret, "CocoSecret" }, #endif +#ifdef CONFIG_EFI_GENERIC_STUB + {LINUX_EFI_SCREEN_INFO_TABLE_GUID, &screen_info_table }, +#endif {}, }; |