mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-13 06:42:56 +00:00
76 lines
1.9 KiB
C
76 lines
1.9 KiB
C
|
// SPDX-License-Identifier: GPL-2.0+
|
||
|
|
/*
|
||
|
|
* efi_selftest_devicepath
|
||
|
|
*
|
||
|
|
* Copyright (c) 2020 Heinrich Schuchardt <xypron.glpk@gmx.de>
|
||
|
|
*
|
||
|
|
* Test the EFI_TCG2_PROTOCOL
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <efi_selftest.h>
|
||
|
|
#include <efi_tcg2.h>
|
||
|
|
|
||
|
|
static struct efi_boot_services *boottime;
|
||
|
|
static const efi_guid_t guid_tcg2 = EFI_TCG2_PROTOCOL_GUID;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* efi_st_tcg2_setup() - setup test
|
||
|
|
*
|
||
|
|
* @handle: handle of the loaded image
|
||
|
|
* @systable: system table
|
||
|
|
* @return: status code
|
||
|
|
*/
|
||
|
|
static int efi_st_tcg2_setup(const efi_handle_t img_handle,
|
||
|
|
const struct efi_system_table *systable)
|
||
|
|
{
|
||
|
|
boottime = systable->boottime;
|
||
|
|
|
||
|
|
return EFI_ST_SUCCESS;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* efi_st_tcg2_execute() - execute test
|
||
|
|
*
|
||
|
|
* Call the GetCapability service of the EFI_TCG2_PROTOCOL.
|
||
|
|
*
|
||
|
|
* Return: status code
|
||
|
|
*/
|
||
|
|
static int efi_st_tcg2_execute(void)
|
||
|
|
{
|
||
|
|
struct efi_tcg2_protocol *tcg2;
|
||
|
|
struct efi_tcg2_boot_service_capability capability;
|
||
|
|
efi_status_t ret;
|
||
|
|
|
||
|
|
ret = boottime->locate_protocol(&guid_tcg2, NULL, (void **)&tcg2);
|
||
|
|
if (ret != EFI_SUCCESS) {
|
||
|
|
efi_st_error("TCG2 protocol is not available.\n");
|
||
|
|
return EFI_ST_FAILURE;
|
||
|
|
}
|
||
|
|
capability.size = sizeof(struct efi_tcg2_boot_service_capability) - 1;
|
||
|
|
ret = tcg2->get_capability(tcg2, &capability);
|
||
|
|
if (ret != EFI_BUFFER_TOO_SMALL) {
|
||
|
|
efi_st_error("tcg2->get_capability on small buffer failed\n");
|
||
|
|
return EFI_ST_FAILURE;
|
||
|
|
}
|
||
|
|
capability.size = sizeof(struct efi_tcg2_boot_service_capability);
|
||
|
|
ret = tcg2->get_capability(tcg2, &capability);
|
||
|
|
if (ret != EFI_SUCCESS) {
|
||
|
|
efi_st_error("tcg2->get_capability failed\n");
|
||
|
|
return EFI_ST_FAILURE;
|
||
|
|
}
|
||
|
|
if (!capability.tpm_present_flag) {
|
||
|
|
efi_st_error("TPM not present\n");
|
||
|
|
return EFI_ST_FAILURE;
|
||
|
|
}
|
||
|
|
efi_st_printf("TPM supports 0x%.8x event logs\n",
|
||
|
|
capability.supported_event_logs);
|
||
|
|
return EFI_ST_SUCCESS;
|
||
|
|
}
|
||
|
|
|
||
|
|
EFI_UNIT_TEST(tcg2) = {
|
||
|
|
.name = "tcg2",
|
||
|
|
.phase = EFI_EXECUTE_BEFORE_BOOTTIME_EXIT,
|
||
|
|
.execute = efi_st_tcg2_execute,
|
||
|
|
.setup = efi_st_tcg2_setup,
|
||
|
|
};
|