mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-14 23:33:00 +00:00
232cfd6d91
Adds support in optee supplicant to route signed (MACed) RPMB frames from OP-TEE Secure OS to MMC and vice versa to manipulate the RPMB partition. Tested-by: Igor Opaniuk <igor.opaniuk@linaro.org> Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org> Reviewed-by: Simon Glass <sjg@chromium.org>
96 lines
2.1 KiB
C
96 lines
2.1 KiB
C
// SPDX-License-Identifier: BSD-2-Clause
|
|
/*
|
|
* Copyright (c) 2018, Linaro Limited
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <log.h>
|
|
#include <tee.h>
|
|
#include <linux/types.h>
|
|
|
|
#include "optee_msg.h"
|
|
#include "optee_msg_supplicant.h"
|
|
#include "optee_private.h"
|
|
#include "optee_smc.h"
|
|
|
|
static void cmd_shm_alloc(struct udevice *dev, struct optee_msg_arg *arg,
|
|
void **page_list)
|
|
{
|
|
int rc;
|
|
struct tee_shm *shm;
|
|
void *pl;
|
|
u64 ph_ptr;
|
|
|
|
arg->ret_origin = TEE_ORIGIN_COMMS;
|
|
|
|
if (arg->num_params != 1 ||
|
|
arg->params[0].attr != OPTEE_MSG_ATTR_TYPE_VALUE_INPUT) {
|
|
arg->ret = TEE_ERROR_BAD_PARAMETERS;
|
|
return;
|
|
}
|
|
|
|
rc = __tee_shm_add(dev, 0, NULL, arg->params[0].u.value.b,
|
|
TEE_SHM_REGISTER | TEE_SHM_ALLOC, &shm);
|
|
if (rc) {
|
|
if (rc == -ENOMEM)
|
|
arg->ret = TEE_ERROR_OUT_OF_MEMORY;
|
|
else
|
|
arg->ret = TEE_ERROR_GENERIC;
|
|
return;
|
|
}
|
|
|
|
pl = optee_alloc_and_init_page_list(shm->addr, shm->size, &ph_ptr);
|
|
if (!pl) {
|
|
arg->ret = TEE_ERROR_OUT_OF_MEMORY;
|
|
tee_shm_free(shm);
|
|
return;
|
|
}
|
|
|
|
*page_list = pl;
|
|
arg->params[0].attr = OPTEE_MSG_ATTR_TYPE_TMEM_OUTPUT |
|
|
OPTEE_MSG_ATTR_NONCONTIG;
|
|
arg->params[0].u.tmem.buf_ptr = ph_ptr;
|
|
arg->params[0].u.tmem.size = shm->size;
|
|
arg->params[0].u.tmem.shm_ref = (ulong)shm;
|
|
arg->ret = TEE_SUCCESS;
|
|
}
|
|
|
|
static void cmd_shm_free(struct optee_msg_arg *arg)
|
|
{
|
|
arg->ret_origin = TEE_ORIGIN_COMMS;
|
|
|
|
if (arg->num_params != 1 ||
|
|
arg->params[0].attr != OPTEE_MSG_ATTR_TYPE_VALUE_INPUT) {
|
|
arg->ret = TEE_ERROR_BAD_PARAMETERS;
|
|
return;
|
|
}
|
|
|
|
tee_shm_free((struct tee_shm *)(ulong)arg->params[0].u.value.b);
|
|
arg->ret = TEE_SUCCESS;
|
|
}
|
|
|
|
void optee_suppl_cmd(struct udevice *dev, struct tee_shm *shm_arg,
|
|
void **page_list)
|
|
{
|
|
struct optee_msg_arg *arg = shm_arg->addr;
|
|
|
|
switch (arg->cmd) {
|
|
case OPTEE_MSG_RPC_CMD_SHM_ALLOC:
|
|
cmd_shm_alloc(dev, arg, page_list);
|
|
break;
|
|
case OPTEE_MSG_RPC_CMD_SHM_FREE:
|
|
cmd_shm_free(arg);
|
|
break;
|
|
case OPTEE_MSG_RPC_CMD_FS:
|
|
debug("OPTEE_MSG_RPC_CMD_FS not implemented\n");
|
|
arg->ret = TEE_ERROR_NOT_IMPLEMENTED;
|
|
break;
|
|
case OPTEE_MSG_RPC_CMD_RPMB:
|
|
optee_suppl_cmd_rpmb(dev, arg);
|
|
break;
|
|
default:
|
|
arg->ret = TEE_ERROR_NOT_IMPLEMENTED;
|
|
}
|
|
|
|
arg->ret_origin = TEE_ORIGIN_COMMS;
|
|
}
|