diff options
| author | AKASHI Takahiro <takahiro.akashi@linaro.org> | 2020-11-17 09:27:55 +0900 |
|---|---|---|
| committer | Heinrich Schuchardt <xypron.glpk@gmx.de> | 2020-12-03 21:22:49 +0100 |
| commit | 2bc27ca8a04aea89c82b5fc4412e889d1ac9f756 (patch) | |
| tree | 9f5c3ff56156c1dbd585352ff5152937fa74a71d /lib/efi_loader/efi_setup.c | |
| parent | 96ec4b1a18a41a40c920d03bc8954cc18079838d (diff) | |
efi_loader: define UpdateCapsule api
In this commit, skeleton functions for capsule-related API's are
added under CONFIG_EFI_UPDATE_CAPSULE configuration.
Detailed implementation for a specific capsule type will be added
in the succeeding patches.
Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
Diffstat (limited to 'lib/efi_loader/efi_setup.c')
| -rw-r--r-- | lib/efi_loader/efi_setup.c | 64 |
1 files changed, 54 insertions, 10 deletions
diff --git a/lib/efi_loader/efi_setup.c b/lib/efi_loader/efi_setup.c index 2bb2c3c7aa..3dd3f56669 100644 --- a/lib/efi_loader/efi_setup.c +++ b/lib/efi_loader/efi_setup.c @@ -100,9 +100,9 @@ static efi_status_t efi_init_secure_boot(void) ret = efi_set_variable_int(L"SignatureSupport", &efi_global_variable_guid, + EFI_VARIABLE_READ_ONLY | EFI_VARIABLE_BOOTSERVICE_ACCESS | - EFI_VARIABLE_RUNTIME_ACCESS | - EFI_VARIABLE_READ_ONLY, + EFI_VARIABLE_RUNTIME_ACCESS, sizeof(signature_types), &signature_types, false); if (ret != EFI_SUCCESS) @@ -118,13 +118,59 @@ static efi_status_t efi_init_secure_boot(void) #endif /* CONFIG_EFI_SECURE_BOOT */ /** + * efi_init_capsule - initialize capsule update state + * + * Return: status code + */ +static efi_status_t efi_init_capsule(void) +{ + efi_status_t ret = EFI_SUCCESS; + + if (IS_ENABLED(CONFIG_EFI_HAVE_CAPSULE_UPDATE)) { + ret = efi_set_variable_int(L"CapsuleMax", + &efi_guid_capsule_report, + EFI_VARIABLE_READ_ONLY | + EFI_VARIABLE_BOOTSERVICE_ACCESS | + EFI_VARIABLE_RUNTIME_ACCESS, + 22, L"CapsuleFFFF", false); + if (ret != EFI_SUCCESS) + printf("EFI: cannot initialize CapsuleMax variable\n"); + } + + return ret; +} + +/** + * efi_init_os_indications() - indicate supported features for OS requests + * + * Set the OsIndicationsSupported variable. + * + * Return: status code + */ +static efi_status_t efi_init_os_indications(void) +{ + u64 os_indications_supported = 0; + + if (IS_ENABLED(CONFIG_EFI_HAVE_CAPSULE_SUPPORT)) + os_indications_supported |= + EFI_OS_INDICATIONS_CAPSULE_RESULT_VAR_SUPPORTED; + + return efi_set_variable_int(L"OsIndicationsSupported", + &efi_global_variable_guid, + EFI_VARIABLE_BOOTSERVICE_ACCESS | + EFI_VARIABLE_RUNTIME_ACCESS | + EFI_VARIABLE_READ_ONLY, + sizeof(os_indications_supported), + &os_indications_supported, false); +} + +/** * efi_init_obj_list() - Initialize and populate EFI object list * * Return: status code */ efi_status_t efi_init_obj_list(void) { - u64 os_indications_supported = 0; /* None */ efi_status_t ret = EFI_SUCCESS; /* Initialize once only */ @@ -168,13 +214,7 @@ efi_status_t efi_init_obj_list(void) goto out; /* Indicate supported features */ - ret = efi_set_variable_int(L"OsIndicationsSupported", - &efi_global_variable_guid, - EFI_VARIABLE_BOOTSERVICE_ACCESS | - EFI_VARIABLE_RUNTIME_ACCESS | - EFI_VARIABLE_READ_ONLY, - sizeof(os_indications_supported), - &os_indications_supported, false); + ret = efi_init_os_indications(); if (ret != EFI_SUCCESS) goto out; @@ -233,6 +273,10 @@ efi_status_t efi_init_obj_list(void) if (ret != EFI_SUCCESS) goto out; + ret = efi_init_capsule(); + if (ret != EFI_SUCCESS) + goto out; + /* Initialize EFI runtime services */ ret = efi_reset_system_init(); if (ret != EFI_SUCCESS) |