.config_table = EFI_INVALID_TABLE_ADDR,
.esrt = EFI_INVALID_TABLE_ADDR,
.mem_attr_table = EFI_INVALID_TABLE_ADDR,
- .rng_seed = EFI_INVALID_TABLE_ADDR,
.tpm_log = EFI_INVALID_TABLE_ADDR,
.tpm_final_log = EFI_INVALID_TABLE_ADDR,
.mem_reserve = EFI_INVALID_TABLE_ADDR,
};
EXPORT_SYMBOL(efi);
+static unsigned long __ro_after_init rng_seed = EFI_INVALID_TABLE_ADDR;
+
struct mm_struct efi_mm = {
.mm_rb = RB_ROOT,
.mm_users = ATOMIC_INIT(2),
{SMBIOS3_TABLE_GUID, "SMBIOS 3.0", &efi.smbios3},
{EFI_SYSTEM_RESOURCE_TABLE_GUID, "ESRT", &efi.esrt},
{EFI_MEMORY_ATTRIBUTES_TABLE_GUID, "MEMATTR", &efi.mem_attr_table},
- {LINUX_EFI_RANDOM_SEED_TABLE_GUID, "RNG", &efi.rng_seed},
+ {LINUX_EFI_RANDOM_SEED_TABLE_GUID, "RNG", &rng_seed},
{LINUX_EFI_TPM_EVENT_LOG_GUID, "TPMEventLog", &efi.tpm_log},
{LINUX_EFI_TPM_FINAL_LOG_GUID, "TPMFinalLog", &efi.tpm_final_log},
{LINUX_EFI_MEMRESERVE_TABLE_GUID, "MEMRESERVE", &efi.mem_reserve},
pr_cont("\n");
set_bit(EFI_CONFIG_TABLES, &efi.flags);
- if (efi.rng_seed != EFI_INVALID_TABLE_ADDR) {
+ if (rng_seed != EFI_INVALID_TABLE_ADDR) {
struct linux_efi_random_seed *seed;
u32 size = 0;
- seed = early_memremap(efi.rng_seed, sizeof(*seed));
+ seed = early_memremap(rng_seed, sizeof(*seed));
if (seed != NULL) {
size = seed->size;
early_memunmap(seed, sizeof(*seed));
pr_err("Could not map UEFI random seed!\n");
}
if (size > 0) {
- seed = early_memremap(efi.rng_seed,
- sizeof(*seed) + size);
+ seed = early_memremap(rng_seed, sizeof(*seed) + size);
if (seed != NULL) {
pr_notice("seeding entropy pool\n");
add_bootloader_randomness(seed->bits, seed->size);
if (!kexec_in_progress)
return NOTIFY_DONE;
- seed = memremap(efi.rng_seed, sizeof(*seed), MEMREMAP_WB);
+ seed = memremap(rng_seed, sizeof(*seed), MEMREMAP_WB);
if (seed != NULL) {
size = min(seed->size, EFI_RANDOM_SEED_SIZE);
memunmap(seed);
pr_err("Could not map UEFI random seed!\n");
}
if (size > 0) {
- seed = memremap(efi.rng_seed, sizeof(*seed) + size,
- MEMREMAP_WB);
+ seed = memremap(rng_seed, sizeof(*seed) + size, MEMREMAP_WB);
if (seed != NULL) {
seed->size = size;
get_random_bytes(seed->bits, seed->size);
.notifier_call = update_efi_random_seed,
};
-static int register_update_efi_random_seed(void)
+static int __init register_update_efi_random_seed(void)
{
- if (efi.rng_seed == EFI_INVALID_TABLE_ADDR)
+ if (rng_seed == EFI_INVALID_TABLE_ADDR)
return 0;
return register_reboot_notifier(&efi_random_seed_nb);
}