diff options
Diffstat (limited to 'src/basic/efivars.c')
| -rw-r--r-- | src/basic/efivars.c | 26 |
1 files changed, 21 insertions, 5 deletions
diff --git a/src/basic/efivars.c b/src/basic/efivars.c index aa08ad2e27..b79ca8efd7 100644 --- a/src/basic/efivars.c +++ b/src/basic/efivars.c @@ -244,10 +244,16 @@ int efi_set_variable_string(sd_id128_t vendor, const char *name, const char *v) } bool is_efi_boot(void) { - if (detect_container() > 0) - return false; + static int cache = -1; - return access("/sys/firmware/efi/", F_OK) >= 0; + if (cache < 0) { + if (detect_container() > 0) + cache = false; + else + cache = access("/sys/firmware/efi/", F_OK) >= 0; + } + + return cache; } static int read_flag(const char *varname) { @@ -271,11 +277,21 @@ static int read_flag(const char *varname) { } bool is_efi_secure_boot(void) { - return read_flag("SecureBoot") > 0; + static int cache = -1; + + if (cache < 0) + cache = read_flag("SecureBoot"); + + return cache > 0; } bool is_efi_secure_boot_setup_mode(void) { - return read_flag("SetupMode") > 0; + static int cache = -1; + + if (cache < 0) + cache = read_flag("SetupMode"); + + return cache > 0; } int systemd_efi_options_variable(char **line) { |