Current FMP->GetImageInfo() always return 0 for the firmware version, user can not identify which firmware version is currently running through the EFI interface.
This commit reads the "FmpStateXXXX" EFI variable, then fills the firmware version, lowest supported version, last attempt version and last attempt status in FMP->GetImageInfo().
Now FMP->GetImageInfo() and ESRT have the meaningful version number.
Signed-off-by: Masahisa Kojima masahisa.kojima@linaro.org --- No update since v1
lib/efi_loader/efi_firmware.c | 30 ++++++++++++++++++++++++++---- 1 file changed, 26 insertions(+), 4 deletions(-)
diff --git a/lib/efi_loader/efi_firmware.c b/lib/efi_loader/efi_firmware.c index d1afafb052..ead20fa914 100644 --- a/lib/efi_loader/efi_firmware.c +++ b/lib/efi_loader/efi_firmware.c @@ -173,13 +173,38 @@ static efi_status_t efi_fill_image_desc_array( *package_version_name = NULL; /* not supported */
for (i = 0; i < num_image_type_guids; i++) { + u16 varname[13]; /* u"FmpStateXXXX" */ + efi_status_t ret; + efi_uintn_t size; + struct fmp_state var_state = { 0 }; + image_info[i].image_index = fw_array[i].image_index; image_info[i].image_type_id = fw_array[i].image_type_id; image_info[i].image_id = fw_array[i].image_index;
image_info[i].image_id_name = fw_array[i].fw_name;
- image_info[i].version = 0; /* not supported */ + efi_create_indexed_name(varname, sizeof(varname), "FmpState", + fw_array[i].image_index); + size = sizeof(var_state); + ret = efi_get_variable_int(varname, &efi_guid_fmp_state, NULL, + &size, &var_state, NULL); + if (ret == EFI_SUCCESS) { + image_info[i].version = var_state.fw_version; + image_info[i].lowest_supported_image_version = + var_state.lowest_supported_version; + image_info[i].last_attempt_version = + var_state.last_attempt_version; + image_info[i].last_attempt_status = + var_state.last_attempt_status; + } else { + image_info[i].version = 0; + image_info[i].lowest_supported_image_version = 0; + image_info[i].last_attempt_version = 0; + image_info[i].last_attempt_status = + LAST_ATTEMPT_STATUS_SUCCESS; + } + image_info[i].version_name = NULL; /* not supported */ image_info[i].size = 0; image_info[i].attributes_supported = @@ -193,9 +218,6 @@ static efi_status_t efi_fill_image_desc_array( image_info[0].attributes_setting |= IMAGE_ATTRIBUTE_AUTHENTICATION_REQUIRED;
- image_info[i].lowest_supported_image_version = 0; - image_info[i].last_attempt_version = 0; - image_info[i].last_attempt_status = LAST_ATTEMPT_STATUS_SUCCESS; image_info[i].hardware_instance = 1; image_info[i].dependencies = NULL; }