diff options
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/include/asm/efi.h | 23 | ||||
| -rw-r--r-- | arch/arm64/include/asm/efi.h | 5 | ||||
| -rw-r--r-- | arch/x86/kernel/setup.c | 1 | ||||
| -rw-r--r-- | arch/x86/platform/efi/efi.c | 3 |
4 files changed, 17 insertions, 15 deletions
diff --git a/arch/arm/include/asm/efi.h b/arch/arm/include/asm/efi.h index 5dcf3c6011b7..3ee4f4381985 100644 --- a/arch/arm/include/asm/efi.h +++ b/arch/arm/include/asm/efi.h @@ -66,25 +66,24 @@ static inline void efifb_setup_from_dmi(struct screen_info *si, const char *opt) #define MAX_UNCOMP_KERNEL_SIZE SZ_32M /* - * The kernel zImage should preferably be located between 32 MB and 128 MB - * from the base of DRAM. The min address leaves space for a maximal size - * uncompressed image, and the max address is due to how the zImage decompressor - * picks a destination address. + * phys-to-virt patching requires that the physical to virtual offset fits + * into the immediate field of an add/sub instruction, which comes down to the + * 24 least significant bits being zero, and so the offset should be a multiple + * of 16 MB. Since PAGE_OFFSET itself is a multiple of 16 MB, the physical + * base should be aligned to 16 MB as well. */ -#define ZIMAGE_OFFSET_LIMIT SZ_128M -#define MIN_ZIMAGE_OFFSET MAX_UNCOMP_KERNEL_SIZE +#define EFI_PHYS_ALIGN SZ_16M -/* on ARM, the FDT should be located in the first 128 MB of RAM */ -static inline unsigned long efi_get_max_fdt_addr(unsigned long dram_base) +/* on ARM, the FDT should be located in a lowmem region */ +static inline unsigned long efi_get_max_fdt_addr(unsigned long image_addr) { - return dram_base + ZIMAGE_OFFSET_LIMIT; + return round_down(image_addr, EFI_PHYS_ALIGN) + SZ_512M; } /* on ARM, the initrd should be loaded in a lowmem region */ -static inline unsigned long efi_get_max_initrd_addr(unsigned long dram_base, - unsigned long image_addr) +static inline unsigned long efi_get_max_initrd_addr(unsigned long image_addr) { - return dram_base + SZ_512M; + return round_down(image_addr, EFI_PHYS_ALIGN) + SZ_512M; } struct efi_arm_entry_state { diff --git a/arch/arm64/include/asm/efi.h b/arch/arm64/include/asm/efi.h index d4ab3f73e7a3..973b14415271 100644 --- a/arch/arm64/include/asm/efi.h +++ b/arch/arm64/include/asm/efi.h @@ -65,7 +65,7 @@ efi_status_t __efi_rt_asm_wrapper(void *, const char *, ...); (SEGMENT_ALIGN > THREAD_ALIGN ? SEGMENT_ALIGN : THREAD_ALIGN) /* on arm64, the FDT may be located anywhere in system RAM */ -static inline unsigned long efi_get_max_fdt_addr(unsigned long dram_base) +static inline unsigned long efi_get_max_fdt_addr(unsigned long image_addr) { return ULONG_MAX; } @@ -80,8 +80,7 @@ static inline unsigned long efi_get_max_fdt_addr(unsigned long dram_base) * apply to other bootloaders, and are required for some kernel * configurations. */ -static inline unsigned long efi_get_max_initrd_addr(unsigned long dram_base, - unsigned long image_addr) +static inline unsigned long efi_get_max_initrd_addr(unsigned long image_addr) { return (image_addr & ~(SZ_1G - 1UL)) + (1UL << (VA_BITS_MIN - 1)); } diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c index 3511736fbc74..d41be0df72f8 100644 --- a/arch/x86/kernel/setup.c +++ b/arch/x86/kernel/setup.c @@ -1077,6 +1077,7 @@ void __init setup_arch(char **cmdline_p) efi_fake_memmap(); efi_find_mirror(); efi_esrt_init(); + efi_mokvar_table_init(); /* * The EFI specification says that boot service code won't be diff --git a/arch/x86/platform/efi/efi.c b/arch/x86/platform/efi/efi.c index d37ebe6e70d7..8a26e705cb06 100644 --- a/arch/x86/platform/efi/efi.c +++ b/arch/x86/platform/efi/efi.c @@ -90,6 +90,9 @@ static const unsigned long * const efi_tables[] = { &efi.tpm_log, &efi.tpm_final_log, &efi_rng_seed, +#ifdef CONFIG_LOAD_UEFI_KEYS + &efi.mokvar_table, +#endif }; u64 efi_setup; /* efi setup_data physical address */ |