diff options
| -rw-r--r-- | drivers/firmware/efi/runtime-wrappers.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/drivers/firmware/efi/runtime-wrappers.c b/drivers/firmware/efi/runtime-wrappers.c index bf18270519d2..ce1f93e33e2c 100644 --- a/drivers/firmware/efi/runtime-wrappers.c +++ b/drivers/firmware/efi/runtime-wrappers.c @@ -480,6 +480,11 @@ virt_efi_set_variable_nb(efi_char16_t *name, efi_guid_t *vendor, u32 attr, if (down_trylock(&efi_runtime_lock)) return EFI_NOT_READY; + if (!efi_enabled(EFI_RUNTIME_SERVICES)) { + up(&efi_runtime_lock); + return EFI_DEVICE_ERROR; + } + efi_runtime_lock_owner = current; status = efi_call_virt_pointer(efi.runtime, set_variable, name, vendor, attr, data_size, data); @@ -519,6 +524,11 @@ virt_efi_query_variable_info_nb(u32 attr, u64 *storage_space, if (down_trylock(&efi_runtime_lock)) return EFI_NOT_READY; + if (!efi_enabled(EFI_RUNTIME_SERVICES)) { + up(&efi_runtime_lock); + return EFI_DEVICE_ERROR; + } + efi_runtime_lock_owner = current; status = efi_call_virt_pointer(efi.runtime, query_variable_info, attr, storage_space, remaining_space, @@ -549,6 +559,12 @@ virt_efi_reset_system(int reset_type, efi_status_t status, return; } + if (!efi_enabled(EFI_RUNTIME_SERVICES)) { + pr_warn("EFI Runtime Services are disabled, not invoking reset_system()\n"); + up(&efi_runtime_lock); + return; + } + efi_runtime_lock_owner = current; arch_efi_call_virt_setup(); efi_rts_work.efi_rts_id = EFI_RESET_SYSTEM; |