diff options
Diffstat (limited to 'drivers/efi/efi-device.c')
| -rw-r--r-- | drivers/efi/efi-device.c | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/drivers/efi/efi-device.c b/drivers/efi/efi-device.c index db8b25147f..6ed7f12b37 100644 --- a/drivers/efi/efi-device.c +++ b/drivers/efi/efi-device.c @@ -354,11 +354,41 @@ static void efi_businfo(struct device_d *dev) } } +static int efi_is_secure_boot(void) +{ + uint8_t *val; + int ret = 0; + + val = efi_get_variable("SecureBoot", &efi_global_variable_guid, NULL); + if (!IS_ERR(val)) { + ret = *val; + free(val); + } + + return ret != 1; +} + +static int efi_is_setup_mode(void) +{ + uint8_t *val; + int ret = 0; + + val = efi_get_variable("SetupMode", &efi_global_variable_guid, NULL); + if (!IS_ERR(val)) { + ret = *val; + free(val); + } + + return ret != 1; +} + static int efi_init_devices(void) { char *fw_vendor = NULL; u16 sys_major = efi_sys_table->hdr.revision >> 16; u16 sys_minor = efi_sys_table->hdr.revision & 0xffff; + int secure_boot = efi_is_secure_boot(); + int setup_mode = efi_is_setup_mode(); fw_vendor = strdup_wchar_to_char((const wchar_t *)efi_sys_table->fw_vendor); @@ -374,6 +404,9 @@ static int efi_init_devices(void) dev_add_param_int_ro(efi_bus.dev, "major", sys_major, "%u"); dev_add_param_int_ro(efi_bus.dev, "minor", sys_minor, "%u"); dev_add_param_int_ro(efi_bus.dev, "fw_revision", efi_sys_table->fw_revision, "%u"); + dev_add_param_int_ro(efi_bus.dev, "secure_boot", secure_boot, "%d"); + dev_add_param_int_ro(efi_bus.dev, "secure_mode", + secure_boot & setup_mode, "%u"); efi_bus.dev->info = efi_businfo; |