The UEFI capsule can be generated either through command-line parameters, or, by specifying those in a config file. Add documentation to describe the format of the config file.
Signed-off-by: Sughosh Ganu sughosh.ganu@linaro.org --- Changes since V1: None
doc/develop/uefi/uefi.rst | 64 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 64 insertions(+)
diff --git a/doc/develop/uefi/uefi.rst b/doc/develop/uefi/uefi.rst index f96762af39..09b32c9921 100644 --- a/doc/develop/uefi/uefi.rst +++ b/doc/develop/uefi/uefi.rst @@ -442,6 +442,70 @@ following command can be issued --guid c1b629f1-ce0e-4894-82bf-f0a38387e630 \ optee.bin optee.capsule
+Or alternatively, the capsule can be generated through a make target + +.. code-block:: bash + + $ make capsule + +Issuing the above make command requires specifying the capsule +parameters through a config file instead. The Kconfig symbol +CONFIG_EFI_CAPSULE_CFG_FILE is to be used for specifying the path to +the config file. + +The config file describes the parameters that are used for generating +one or more capsules. The parameters for a given capsule file are +specified within curly braces, in the form of "key:value" pairs. All +the parameters that are currently supported by the mkeficapsule tool +can be specified through the config file. + +The following are some example payload parameters specified through +the config file. + +.. code-block:: none + + { + image-guid: 02f4d760-cfd5-43bd-8e2d-a42acb33c660 + hardware-instance: 0 + monotonic-count: 1 + payload: u-boot.bin + image-index: 1 + private-key: /path/to/priv/key + pub-key-cert: /path/to/pub/key + capsule: u-boot.capsule + } + { + image-guid: 4ce292da-1dd8-428d-a1c2-77743ef8b96e + hardware-instance: 0 + payload: u-boot.itb + image-index: 2 + oemflags: 0x8000 + capsule: fit.capsule + } + { + capsule-type: accept + image-guid: 4ce292da-1dd8-428d-a1c2-77743ef8b96e + capsule: accept.capsule + } + { + capsule-type: revert + capsule: revert.capsule + } + +The following are the keys that specify the capsule parameters + +..code-block:: none + + image-guid: Image GUID + image-index: Image index value + private-key: Path to the private key file used for capsule signing + pub-key-cert: Path to the public key crt file used for capsule signing + payload: Path to the capsule payload file + capsule: Path to the output capsule file that is generated + hardware-instance: Hardware Instance value + monotonic-count: Monotonic count value + capsule-type: Specifies capsule type. normal(default), accept or revert + oemflags: 16bit Oemflags value to be used(populated in capsule header)
Enabling Capsule Authentication *******************************