The EFI_IGNORE_OSINDICATIONS config symbol was introduced as a mechanism to have capsule updates work even on platforms where the SetVariable runtime service was not supported. The current logic requires the OsIndications variable to have been set to a 64 bit value even when the EFI_IGNORE_OSINDICATIONS config is enabled. Return an error code on not being able to read the variable only when EFI_IGNORE_OSINDICATIONS is not enabled.
Signed-off-by: Sughosh Ganu sughosh.ganu@linaro.org ---
Changes since V1: * Read the OsIndications variable, if present and clear the EFI_OS_INDICATIONS_FILE_CAPSULE_DELIVERY_SUPPORTED flag even if the CONFIG_EFI_IGNORE_OSINDICATIONS config is enabled.
lib/efi_loader/efi_capsule.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/lib/efi_loader/efi_capsule.c b/lib/efi_loader/efi_capsule.c index c76a5f3570..a6b98f066a 100644 --- a/lib/efi_loader/efi_capsule.c +++ b/lib/efi_loader/efi_capsule.c @@ -1058,14 +1058,15 @@ static void efi_capsule_scan_done(void) */ static efi_status_t check_run_capsules(void) { - u64 os_indications; + u64 os_indications = 0x0; efi_uintn_t size; efi_status_t r;
size = sizeof(os_indications); r = efi_get_variable_int(u"OsIndications", &efi_global_variable_guid, NULL, &size, &os_indications, NULL); - if (r != EFI_SUCCESS || size != sizeof(os_indications)) + if (!IS_ENABLED(CONFIG_EFI_IGNORE_OSINDICATIONS) && + (r != EFI_SUCCESS || size != sizeof(os_indications))) return EFI_NOT_FOUND;
if (os_indications & @@ -1084,7 +1085,7 @@ static efi_status_t check_run_capsules(void) return EFI_SUCCESS; } else if (IS_ENABLED(CONFIG_EFI_IGNORE_OSINDICATIONS)) { return EFI_SUCCESS; - } else { + } else { return EFI_NOT_FOUND; } }