diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/firmware/efi/libstub/Makefile | 2 | ||||
| -rw-r--r-- | drivers/firmware/efi/libstub/arm64-stub.c | 13 | ||||
| -rw-r--r-- | drivers/firmware/efi/libstub/arm64.c | 3 | ||||
| -rw-r--r-- | drivers/firmware/efi/libstub/efistub.h | 9 | ||||
| -rw-r--r-- | drivers/firmware/efi/libstub/kaslr.c | 20 | ||||
| -rw-r--r-- | drivers/firmware/efi/libstub/relocate.c | 2 | ||||
| -rw-r--r-- | drivers/firmware/efi/libstub/smbios.c | 43 | ||||
| -rw-r--r-- | drivers/firmware/efi/libstub/unaccepted_memory.c | 2 | ||||
| -rw-r--r-- | drivers/firmware/efi/libstub/x86-stub.c | 83 | ||||
| -rw-r--r-- | drivers/firmware/efi/memattr.c | 2 |
10 files changed, 120 insertions, 59 deletions
diff --git a/drivers/firmware/efi/libstub/Makefile b/drivers/firmware/efi/libstub/Makefile index 06f0428a723c..1f32d6cf98d6 100644 --- a/drivers/firmware/efi/libstub/Makefile +++ b/drivers/firmware/efi/libstub/Makefile @@ -76,7 +76,7 @@ lib-$(CONFIG_EFI_GENERIC_STUB) += efi-stub.o string.o intrinsics.o systable.o \ lib-$(CONFIG_ARM) += arm32-stub.o lib-$(CONFIG_ARM64) += kaslr.o arm64.o arm64-stub.o smbios.o -lib-$(CONFIG_X86) += x86-stub.o +lib-$(CONFIG_X86) += x86-stub.o smbios.o lib-$(CONFIG_X86_64) += x86-5lvl.o lib-$(CONFIG_RISCV) += kaslr.o riscv.o riscv-stub.o lib-$(CONFIG_LOONGARCH) += loongarch.o loongarch-stub.o diff --git a/drivers/firmware/efi/libstub/arm64-stub.c b/drivers/firmware/efi/libstub/arm64-stub.c index 452b7ccd330e..2c3869356147 100644 --- a/drivers/firmware/efi/libstub/arm64-stub.c +++ b/drivers/firmware/efi/libstub/arm64-stub.c @@ -21,7 +21,6 @@ efi_status_t handle_kernel_image(unsigned long *image_addr, efi_loaded_image_t *image, efi_handle_t image_handle) { - efi_status_t status; unsigned long kernel_size, kernel_codesize, kernel_memsize; if (image->image_base != _text) { @@ -39,15 +38,9 @@ efi_status_t handle_kernel_image(unsigned long *image_addr, *reserve_size = kernel_memsize; *image_addr = (unsigned long)_text; - status = efi_kaslr_relocate_kernel(image_addr, - reserve_addr, reserve_size, - kernel_size, kernel_codesize, - kernel_memsize, - efi_kaslr_get_phys_seed(image_handle)); - if (status != EFI_SUCCESS) - return status; - - return EFI_SUCCESS; + return efi_kaslr_relocate_kernel(image_addr, reserve_addr, reserve_size, + kernel_size, kernel_codesize, kernel_memsize, + efi_kaslr_get_phys_seed(image_handle)); } asmlinkage void primary_entry(void); diff --git a/drivers/firmware/efi/libstub/arm64.c b/drivers/firmware/efi/libstub/arm64.c index 446e35eaf3d9..e57cd3de0a00 100644 --- a/drivers/firmware/efi/libstub/arm64.c +++ b/drivers/firmware/efi/libstub/arm64.c @@ -39,8 +39,7 @@ static bool system_needs_vamap(void) static char const emag[] = "eMAG"; default: - version = efi_get_smbios_string(&record->header, 4, - processor_version); + version = efi_get_smbios_string(record, processor_version); if (!version || (strncmp(version, altra, sizeof(altra) - 1) && strncmp(version, emag, sizeof(emag) - 1))) break; diff --git a/drivers/firmware/efi/libstub/efistub.h b/drivers/firmware/efi/libstub/efistub.h index 27abb4ce0291..d33ccbc4a2c6 100644 --- a/drivers/firmware/efi/libstub/efistub.h +++ b/drivers/firmware/efi/libstub/efistub.h @@ -1204,14 +1204,13 @@ struct efi_smbios_type4_record { u16 thread_enabled; }; -#define efi_get_smbios_string(__record, __type, __name) ({ \ - int off = offsetof(struct efi_smbios_type ## __type ## _record, \ - __name); \ - __efi_get_smbios_string((__record), __type, off); \ +#define efi_get_smbios_string(__record, __field) ({ \ + __typeof__(__record) __rec = __record; \ + __efi_get_smbios_string(&__rec->header, &__rec->__field); \ }) const u8 *__efi_get_smbios_string(const struct efi_smbios_record *record, - u8 type, int offset); + const u8 *offset); void efi_remap_image(unsigned long image_base, unsigned alloc_size, unsigned long code_size); diff --git a/drivers/firmware/efi/libstub/kaslr.c b/drivers/firmware/efi/libstub/kaslr.c index 1a9808012abd..6318c40bda38 100644 --- a/drivers/firmware/efi/libstub/kaslr.c +++ b/drivers/firmware/efi/libstub/kaslr.c @@ -18,8 +18,6 @@ */ u32 efi_kaslr_get_phys_seed(efi_handle_t image_handle) { - efi_status_t status; - u32 phys_seed; efi_guid_t li_fixed_proto = LINUX_EFI_LOADED_IMAGE_FIXED_GUID; void *p; @@ -32,18 +30,20 @@ u32 efi_kaslr_get_phys_seed(efi_handle_t image_handle) &li_fixed_proto, &p) == EFI_SUCCESS) { efi_info("Image placement fixed by loader\n"); } else { + efi_status_t status; + u32 phys_seed; + status = efi_get_random_bytes(sizeof(phys_seed), (u8 *)&phys_seed); - if (status == EFI_SUCCESS) { + if (status == EFI_SUCCESS) return phys_seed; - } else if (status == EFI_NOT_FOUND) { + + if (status == EFI_NOT_FOUND) efi_info("EFI_RNG_PROTOCOL unavailable\n"); - efi_nokaslr = true; - } else if (status != EFI_SUCCESS) { - efi_err("efi_get_random_bytes() failed (0x%lx)\n", - status); - efi_nokaslr = true; - } + else + efi_err("efi_get_random_bytes() failed (0x%lx)\n", status); + + efi_nokaslr = true; } return 0; diff --git a/drivers/firmware/efi/libstub/relocate.c b/drivers/firmware/efi/libstub/relocate.c index bf6fbd5d22a1..d694bcfa1074 100644 --- a/drivers/firmware/efi/libstub/relocate.c +++ b/drivers/firmware/efi/libstub/relocate.c @@ -48,7 +48,7 @@ efi_status_t efi_low_alloc_above(unsigned long size, unsigned long align, unsigned long m = (unsigned long)map->map; u64 start, end; - desc = efi_early_memdesc_ptr(m, map->desc_size, i); + desc = efi_memdesc_ptr(m, map->desc_size, i); if (desc->type != EFI_CONVENTIONAL_MEMORY) continue; diff --git a/drivers/firmware/efi/libstub/smbios.c b/drivers/firmware/efi/libstub/smbios.c index c217de2cc8d5..f31410d7e7e1 100644 --- a/drivers/firmware/efi/libstub/smbios.c +++ b/drivers/firmware/efi/libstub/smbios.c @@ -6,20 +6,31 @@ #include "efistub.h" -typedef struct efi_smbios_protocol efi_smbios_protocol_t; - -struct efi_smbios_protocol { - efi_status_t (__efiapi *add)(efi_smbios_protocol_t *, efi_handle_t, - u16 *, struct efi_smbios_record *); - efi_status_t (__efiapi *update_string)(efi_smbios_protocol_t *, u16 *, - unsigned long *, u8 *); - efi_status_t (__efiapi *remove)(efi_smbios_protocol_t *, u16); - efi_status_t (__efiapi *get_next)(efi_smbios_protocol_t *, u16 *, u8 *, - struct efi_smbios_record **, - efi_handle_t *); - - u8 major_version; - u8 minor_version; +typedef union efi_smbios_protocol efi_smbios_protocol_t; + +union efi_smbios_protocol { + struct { + efi_status_t (__efiapi *add)(efi_smbios_protocol_t *, efi_handle_t, + u16 *, struct efi_smbios_record *); + efi_status_t (__efiapi *update_string)(efi_smbios_protocol_t *, u16 *, + unsigned long *, u8 *); + efi_status_t (__efiapi *remove)(efi_smbios_protocol_t *, u16); + efi_status_t (__efiapi *get_next)(efi_smbios_protocol_t *, u16 *, u8 *, + struct efi_smbios_record **, + efi_handle_t *); + + u8 major_version; + u8 minor_version; + }; + struct { + u32 add; + u32 update_string; + u32 remove; + u32 get_next; + + u8 major_version; + u8 minor_version; + } mixed_mode; }; const struct efi_smbios_record *efi_get_smbios_record(u8 type) @@ -38,7 +49,7 @@ const struct efi_smbios_record *efi_get_smbios_record(u8 type) } const u8 *__efi_get_smbios_string(const struct efi_smbios_record *record, - u8 type, int offset) + const u8 *offset) { const u8 *strtable; @@ -46,7 +57,7 @@ const u8 *__efi_get_smbios_string(const struct efi_smbios_record *record, return NULL; strtable = (u8 *)record + record->length; - for (int i = 1; i < ((u8 *)record)[offset]; i++) { + for (int i = 1; i < *offset; i++) { int len = strlen(strtable); if (!len) diff --git a/drivers/firmware/efi/libstub/unaccepted_memory.c b/drivers/firmware/efi/libstub/unaccepted_memory.c index 9a655f30ba47..c295ea3a6efc 100644 --- a/drivers/firmware/efi/libstub/unaccepted_memory.c +++ b/drivers/firmware/efi/libstub/unaccepted_memory.c @@ -29,7 +29,7 @@ efi_status_t allocate_unaccepted_bitmap(__u32 nr_desc, efi_memory_desc_t *d; unsigned long m = (unsigned long)map->map; - d = efi_early_memdesc_ptr(m, map->desc_size, i); + d = efi_memdesc_ptr(m, map->desc_size, i); if (d->type != EFI_UNACCEPTED_MEMORY) continue; diff --git a/drivers/firmware/efi/libstub/x86-stub.c b/drivers/firmware/efi/libstub/x86-stub.c index 1983fd3bf392..078055b054e3 100644 --- a/drivers/firmware/efi/libstub/x86-stub.c +++ b/drivers/firmware/efi/libstub/x86-stub.c @@ -225,6 +225,68 @@ static void retrieve_apple_device_properties(struct boot_params *boot_params) } } +static bool apple_match_product_name(void) +{ + static const char type1_product_matches[][15] = { + "MacBookPro11,3", + "MacBookPro11,5", + "MacBookPro13,3", + "MacBookPro14,3", + "MacBookPro15,1", + "MacBookPro15,3", + "MacBookPro16,1", + "MacBookPro16,4", + }; + const struct efi_smbios_type1_record *record; + const u8 *product; + + record = (struct efi_smbios_type1_record *)efi_get_smbios_record(1); + if (!record) + return false; + + product = efi_get_smbios_string(record, product_name); + if (!product) + return false; + + for (int i = 0; i < ARRAY_SIZE(type1_product_matches); i++) { + if (!strcmp(product, type1_product_matches[i])) + return true; + } + + return false; +} + +static void apple_set_os(void) +{ + struct { + unsigned long version; + efi_status_t (__efiapi *set_os_version)(const char *); + efi_status_t (__efiapi *set_os_vendor)(const char *); + } *set_os; + efi_status_t status; + + if (!efi_is_64bit() || !apple_match_product_name()) + return; + + status = efi_bs_call(locate_protocol, &APPLE_SET_OS_PROTOCOL_GUID, NULL, + (void **)&set_os); + if (status != EFI_SUCCESS) + return; + + if (set_os->version >= 2) { + status = set_os->set_os_vendor("Apple Inc."); + if (status != EFI_SUCCESS) + efi_err("Failed to set OS vendor via apple_set_os\n"); + } + + if (set_os->version > 0) { + /* The version being set doesn't seem to matter */ + status = set_os->set_os_version("Mac OS X 10.9"); + if (status != EFI_SUCCESS) + efi_err("Failed to set OS version via apple_set_os\n"); + } +} + efi_status_t efi_adjust_memory_range_protection(unsigned long start, unsigned long size) { @@ -335,9 +397,12 @@ static const efi_char16_t apple[] = L"Apple"; static void setup_quirks(struct boot_params *boot_params) { - if (IS_ENABLED(CONFIG_APPLE_PROPERTIES) && - !memcmp(efistub_fw_vendor(), apple, sizeof(apple))) - retrieve_apple_device_properties(boot_params); + if (!memcmp(efistub_fw_vendor(), apple, sizeof(apple))) { + if (IS_ENABLED(CONFIG_APPLE_PROPERTIES)) + retrieve_apple_device_properties(boot_params); + + apple_set_os(); + } } /* @@ -476,9 +541,6 @@ efi_status_t __efiapi efi_pe_entry(efi_handle_t handle, efi_status_t status; char *cmdline_ptr; - if (efi_is_native()) - memset(_bss, 0, _ebss - _bss); - efi_system_table = sys_table_arg; /* Check if we were booted by the EFI firmware */ @@ -501,16 +563,13 @@ efi_status_t __efiapi efi_pe_entry(efi_handle_t handle, /* Convert unicode cmdline to ascii */ cmdline_ptr = efi_convert_cmdline(image, &options_size); if (!cmdline_ptr) - goto fail; + efi_exit(handle, EFI_OUT_OF_RESOURCES); efi_set_u64_split((unsigned long)cmdline_ptr, &hdr->cmd_line_ptr, &boot_params.ext_cmd_line_ptr); efi_stub_entry(handle, sys_table_arg, &boot_params); /* not reached */ - -fail: - efi_exit(handle, status); } static void add_e820ext(struct boot_params *params, @@ -555,7 +614,7 @@ setup_e820(struct boot_params *params, struct setup_data *e820ext, u32 e820ext_s m |= (u64)efi->efi_memmap_hi << 32; #endif - d = efi_early_memdesc_ptr(m, efi->efi_memdesc_size, i); + d = efi_memdesc_ptr(m, efi->efi_memdesc_size, i); switch (d->type) { case EFI_RESERVED_TYPE: case EFI_RUNTIME_SERVICES_CODE: @@ -781,7 +840,7 @@ static const char *cmdline_memmap_override; static efi_status_t parse_options(const char *cmdline) { static const char opts[][14] = { - "mem=", "memmap=", "efi_fake_mem=", "hugepages=" + "mem=", "memmap=", "hugepages=" }; for (int i = 0; i < ARRAY_SIZE(opts); i++) { diff --git a/drivers/firmware/efi/memattr.c b/drivers/firmware/efi/memattr.c index ab85bf8e165a..164203429fa7 100644 --- a/drivers/firmware/efi/memattr.c +++ b/drivers/firmware/efi/memattr.c @@ -164,7 +164,7 @@ int __init efi_memattr_apply_permissions(struct mm_struct *mm, bool valid; char buf[64]; - valid = entry_is_valid((void *)tbl->entry + i * tbl->desc_size, + valid = entry_is_valid(efi_memdesc_ptr(tbl->entry, tbl->desc_size, i), &md); size = md.num_pages << EFI_PAGE_SHIFT; if (efi_enabled(EFI_DBG) || !valid) |