efi_loader: Measure the loaded DTB

Measures the DTB passed to the EFI application upon new boolean config
switch CONFIG_EFI_TCG2_PROTOCOL_MEASURE_DTB. For platforms where the
content of the DTB passed to the OS can change across reboots, there is
not point measuring it hence the config switch to allow platform to not
embed this feature.

Co-developed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Signed-off-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Signed-off-by: Etienne Carriere <etienne.carriere@linaro.org>
Tested-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>

1 files changed, 10 insertions, 0 deletions

diff --git a/include/efi_tcg2.h b/include/efi_tcg2.h
index 874306d..b1c3abd 100644
--- a/include/efi_tcg2.h
+++ b/include/efi_tcg2.h
@@ -233,6 +233,16 @@ struct efi_gpt_data {
 	gpt_entry partitions[];
 } __packed;
 
+/**
+ * struct tdUEFI_PLATFORM_FIRMWARE_BLOB2
+ * @blob_description_size:	Byte size of @data
+ * @data:			Description data
+ */
+struct uefi_platform_firmware_blob2 {
+	u8 blob_description_size;
+	u8 data[];
+} __packed;
+
 struct efi_tcg2_protocol {
 	efi_status_t (EFIAPI * get_capability)(struct efi_tcg2_protocol *this,
 					       struct efi_tcg2_boot_service_capability *capability);