void vboot_reboot(void)
{
if (IS_ENABLED(CONFIG_CONSOLE_CBMEM_DUMP_TO_UART))
cbmem_dump_console();
vboot_platform_prepare_reboot();
hard_reset();
die("failed to reboot");
}
void init_tpm(int s3resume)
{
u32 result;
u8 response[TPM_LARGE_ENOUGH_COMMAND_SIZE];
if (CONFIG_TPM_DEACTIVATE) {
printk(BIOS_SPEW, "TPM: Deactivate\n");
result = TlclSendReceive(tpm_deactivate_cmd.buffer,
response, sizeof(response));
if (result == TPM_SUCCESS) {
printk(BIOS_SPEW, "TPM: OK.\n");
return;
}
printk(BIOS_ERR, "TPM: Error code 0x%x.\n", result);
return;
}
/* Doing TPM startup when we're not coming in on the S3 resume path
* saves us roughly 20ms in boot time only. This does not seem to
* be worth an API change to vboot_reference-firmware right now, so
* let's keep the code around, but just bail out early:
*/
if (s3resume ? CONFIG_NO_TPM_RESUME
: CONFIG_SKIP_TPM_STARTUP_ON_NORMAL_BOOT)
return;
printk(BIOS_DEBUG, "TPM initialization.\n");
printk(BIOS_SPEW, "TPM: Init\n");
if (tis_init())
return;
printk(BIOS_SPEW, "TPM: Open\n");
if (tis_open())
return;
if (s3resume) {
/* S3 Resume */
printk(BIOS_SPEW, "TPM: Resume\n");
result = TlclSendReceive(tpm_resume_cmd.buffer,
response, sizeof(response));
if (result == TPM_E_INVALID_POSTINIT) {
/* We're on a platform where the TPM maintains power
* in S3, so it's already initialized.
*/
printk(BIOS_DEBUG, "TPM: Already initialized.\n");
return;
}
} else {
printk(BIOS_SPEW, "TPM: Startup\n");
result = TlclSendReceive(tpm_startup_cmd.buffer,
response, sizeof(response));
}
if (result == TPM_SUCCESS) {
printk(BIOS_SPEW, "TPM: OK.\n");
return;
}
printk(BIOS_ERR, "TPM: Error code 0x%x.\n", result);
if (CONFIG_TPM_INIT_FAILURE_IS_FATAL) {
printk(BIOS_ERR, "Hard reset!\n");
post_code(POST_TPM_FAILURE);
if (IS_ENABLED(CONFIG_CONSOLE_CBMEM_DUMP_TO_UART))
cbmem_dump_console();
hard_reset();
}
}