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efi_loader: set OsIndicationsSupported at init

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UEFI variables should be installed using well-defined API.
Currently we don't support much, but the value of OsIndicationsSupported
will be updated once some features are added in the future.

Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>

Add comments. Rename a variable.

Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
This commit is contained in:
AKASHI Takahiro 2019-04-24 15:30:38 +09:00 • committed by Heinrich Schuchardt
parent e00b82db80
commit d40e05ae95
2 changed files with 11 additions and 4 deletions
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4
cmd/bootefi.c
View file

@ -303,10 +303,6 @@ static efi_status_t do_bootefi_exec(efi_handle_t handle)
if (ret != EFI_SUCCESS) if (ret != EFI_SUCCESS)
return ret; return ret;
/* we don't support much: */
env_set("efi_8be4df61-93ca-11d2-aa0d-00e098032b8c_OsIndicationsSupported",
"{ro,boot}(blob)0000000000000000");
/* Call our payload! */ /* Call our payload! */
ret = EFI_CALL(efi_start_image(handle, NULL, NULL)); ret = EFI_CALL(efi_start_image(handle, NULL, NULL));

11
lib/efi_loader/efi_setup.c
View file

@ -79,6 +79,7 @@ out:
*/ */
efi_status_t efi_init_obj_list(void) efi_status_t efi_init_obj_list(void)
{ {
u64 os_indications_supported = 0; /* None */
efi_status_t ret = EFI_SUCCESS; efi_status_t ret = EFI_SUCCESS;
/* Initialize once only */ /* Initialize once only */
@ -90,6 +91,16 @@ efi_status_t efi_init_obj_list(void)
if (ret != EFI_SUCCESS) if (ret != EFI_SUCCESS)
goto out; goto out;
/* Indicate supported features */
ret = EFI_CALL(efi_set_variable(L"OsIndicationsSupported",
&efi_global_variable_guid,
EFI_VARIABLE_BOOTSERVICE_ACCESS |
EFI_VARIABLE_RUNTIME_ACCESS,
sizeof(os_indications_supported),
&os_indications_supported));
if (ret != EFI_SUCCESS)
goto out;
/* Initialize system table */ /* Initialize system table */
ret = efi_initialize_system_table(); ret = efi_initialize_system_table();
if (ret != EFI_SUCCESS) if (ret != EFI_SUCCESS)