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efi_loader: capsule: support firmware update

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A capsule tagged with the guid, EFI_FIRMWARE_MANAGEMENT_CAPSULE_ID_GUID,
is handled as a firmware update object.
What efi_update_capsule() basically does is to load any firmware management
protocol (or fmp) drivers contained in a capsule, find out an appropriate
fmp driver and then invoke its set_image() interface against each binary
in a capsule.
In this commit, however, loading drivers is not supported.

The result of applying a capsule is set to be stored in "CapsuleXXXX"
variable, but its implementation is deferred to a fmp driver.

Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
This commit is contained in:
AKASHI Takahiro 2020-11-30 18:12:11 +09:00 • committed by Heinrich Schuchardt
parent ed9349c697
commit 8d99026f06
5 changed files with 383 additions and 12 deletions
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4
lib/efi_loader/efi_setup.c
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@ -159,6 +159,10 @@ static efi_status_t efi_init_os_indications(void)
os_indications_supported |=
EFI_OS_INDICATIONS_FILE_CAPSULE_DELIVERY_SUPPORTED;
if (IS_ENABLED(CONFIG_EFI_CAPSULE_FIRMWARE_MANAGEMENT))
os_indications_supported |=
EFI_OS_INDICATIONS_FMP_CAPSULE_SUPPORTED;
return efi_set_variable_int(L"OsIndicationsSupported",
&efi_global_variable_guid,
EFI_VARIABLE_BOOTSERVICE_ACCESS |