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u-boot/test/dm/ffa.c
Abdellatif El Khlifi a2f5c91cda arm_ffa: introduce sandbox test cases for UCLASS_FFA 
Add functional test cases for the FF-A support

These tests rely on the FF-A sandbox emulator and FF-A
sandbox driver which help in inspecting the FF-A communication.

Signed-off-by: Abdellatif El Khlifi <abdellatif.elkhlifi@arm.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Cc: Tom Rini <trini@konsulko.com>
Cc: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Cc: Jens Wiklander <jens.wiklander@linaro.org>
Cc: Heinrich Schuchardt <xypron.glpk@gmx.de>
2023-08-08 10:22:03 -04:00

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// SPDX-License-Identifier: GPL-2.0+
/*
* Functional tests for UCLASS_FFA class
*
* Copyright 2022-2023 Arm Limited and/or its affiliates <open-source-office@arm.com>
*
* Authors:
* Abdellatif El Khlifi <abdellatif.elkhlifi@arm.com>
*/
#include <common.h>
#include <console.h>
#include <dm.h>
#include <asm/sandbox_arm_ffa.h>
#include <asm/sandbox_arm_ffa_priv.h>
#include <dm/test.h>
#include <test/test.h>
#include <test/ut.h>
/* Functional tests for the UCLASS_FFA */
static int check_fwk_version(struct ffa_priv *uc_priv, struct unit_test_state *uts)
{
struct ffa_sandbox_data func_data;
u32 fwk_version = 0;
func_data.data0 = &fwk_version;
func_data.data0_size = sizeof(fwk_version);
ut_assertok(sandbox_query_ffa_emul_state(FFA_VERSION, &func_data));
ut_asserteq(uc_priv->fwk_version, fwk_version);
return 0;
}
static int check_endpoint_id(struct ffa_priv *uc_priv, struct unit_test_state *uts)
{
ut_asserteq(0, uc_priv->id);
return 0;
}
static int check_rxtxbuf(struct ffa_priv *uc_priv, struct unit_test_state *uts)
{
ut_assertnonnull(uc_priv->pair.rxbuf);
ut_assertnonnull(uc_priv->pair.txbuf);
return 0;
}
static int check_features(struct ffa_priv *uc_priv, struct unit_test_state *uts)
{
ut_assert(uc_priv->pair.rxtx_min_pages == RXTX_4K ||
uc_priv->pair.rxtx_min_pages == RXTX_16K ||
uc_priv->pair.rxtx_min_pages == RXTX_64K);
return 0;
}
static int check_rxbuf_mapped_flag(u32 queried_func_id,
u8 rxbuf_mapped,
struct unit_test_state *uts)
{
switch (queried_func_id) {
case FFA_RXTX_MAP:
ut_asserteq(1, rxbuf_mapped);
break;
case FFA_RXTX_UNMAP:
ut_asserteq(0, rxbuf_mapped);
break;
default:
ut_assert(false);
}
return 0;
}
static int check_rxbuf_release_flag(u8 rxbuf_owned, struct unit_test_state *uts)
{
ut_asserteq(0, rxbuf_owned);
return 0;
}
static int test_ffa_msg_send_direct_req(u16 part_id, struct unit_test_state *uts)
{
struct ffa_send_direct_data msg;
u8 cnt;
struct udevice *dev;
ut_assertok(uclass_first_device_err(UCLASS_FFA, &dev));
ut_assertok(ffa_sync_send_receive(dev, part_id, &msg, 1));
for (cnt = 0; cnt < sizeof(struct ffa_send_direct_data) / sizeof(u64); cnt++)
ut_asserteq_64(-1UL, ((u64 *)&msg)[cnt]);
return 0;
}
static int test_partitions_and_comms(const char *service_uuid,
struct unit_test_state *uts)
{
struct ffa_partition_desc *descs;
u32 count, i, j, valid_sps = 0;
struct udevice *dev;
struct ffa_sandbox_data func_data;
struct ffa_partitions *partitions;
ut_assertok(uclass_first_device_err(UCLASS_FFA, &dev));
/* Get from the driver the count and information of the SPs matching the UUID */
ut_assertok(ffa_partition_info_get(dev, service_uuid, &count, &descs));
/* Make sure the count is correct */
ut_asserteq(SANDBOX_SP_COUNT_PER_VALID_SERVICE, count);
/* SPs found , verify the partitions information */
func_data.data0 = &partitions;
func_data.data0_size = sizeof(struct ffa_partitions *);
ut_assertok(sandbox_query_ffa_emul_state(FFA_PARTITION_INFO_GET, &func_data));
for (i = 0; i < count ; i++) {
for (j = 0;
j < partitions->count;
j++) {
if (descs[i].info.id ==
partitions->descs[j].info.id) {
valid_sps++;
ut_asserteq_mem(&descs[i],
&partitions->descs[j],
sizeof(struct ffa_partition_desc));
/* Send and receive data from the current partition */
test_ffa_msg_send_direct_req(descs[i].info.id, uts);
}
}
}
/* Verify expected partitions found in the emulated secure world */
ut_asserteq(SANDBOX_SP_COUNT_PER_VALID_SERVICE, valid_sps);
return 0;
}
static int dm_test_ffa_ack(struct unit_test_state *uts)
{
struct ffa_priv *uc_priv;
struct ffa_sandbox_data func_data;
u8 rxbuf_flag = 0;
const char *svc1_uuid = SANDBOX_SERVICE1_UUID;
const char *svc2_uuid = SANDBOX_SERVICE2_UUID;
struct udevice *dev;
/* Test probing the sandbox FF-A bus */
ut_assertok(uclass_first_device_err(UCLASS_FFA, &dev));
/* Get a pointer to the sandbox FF-A bus private data */
uc_priv = dev_get_uclass_priv(dev);
/* Make sure the private data pointer is retrieved */
ut_assertnonnull(uc_priv);
/* Test FFA_VERSION */
check_fwk_version(uc_priv, uts);
/* Test FFA_ID_GET */
check_endpoint_id(uc_priv, uts);
/* Test FFA_FEATURES */
check_features(uc_priv, uts);
/* Test RX/TX buffers */
check_rxtxbuf(uc_priv, uts);
/* Test FFA_RXTX_MAP */
func_data.data0 = &rxbuf_flag;
func_data.data0_size = sizeof(rxbuf_flag);
rxbuf_flag = 0;
sandbox_query_ffa_emul_state(FFA_RXTX_MAP, &func_data);
check_rxbuf_mapped_flag(FFA_RXTX_MAP, rxbuf_flag, uts);
/* FFA_PARTITION_INFO_GET / FFA_MSG_SEND_DIRECT_REQ */
test_partitions_and_comms(svc1_uuid, uts);
/* Test FFA_RX_RELEASE */
rxbuf_flag = 1;
sandbox_query_ffa_emul_state(FFA_RX_RELEASE, &func_data);
check_rxbuf_release_flag(rxbuf_flag, uts);
/* FFA_PARTITION_INFO_GET / FFA_MSG_SEND_DIRECT_REQ */
test_partitions_and_comms(svc2_uuid, uts);
/* Test FFA_RX_RELEASE */
rxbuf_flag = 1;
ut_assertok(sandbox_query_ffa_emul_state(FFA_RX_RELEASE, &func_data));
check_rxbuf_release_flag(rxbuf_flag, uts);
return 0;
}
DM_TEST(dm_test_ffa_ack, UT_TESTF_SCAN_FDT | UT_TESTF_CONSOLE_REC);
static int dm_test_ffa_nack(struct unit_test_state *uts)
{
struct ffa_priv *uc_priv;
const char *valid_svc_uuid = SANDBOX_SERVICE1_UUID;
const char *unvalid_svc_uuid = SANDBOX_SERVICE3_UUID;
const char *unvalid_svc_uuid_str = SANDBOX_SERVICE4_UUID;
struct ffa_send_direct_data msg;
int ret;
u32 count;
u16 part_id = 0;
struct udevice *dev;
struct ffa_partition_desc *descs = NULL;
/* Test probing the sandbox FF-A bus */
ut_assertok(uclass_first_device_err(UCLASS_FFA, &dev));
/* Get a pointer to the sandbox FF-A bus private data */
uc_priv = dev_get_uclass_priv(dev);
/* Make sure the private data pointer is retrieved */
ut_assertnonnull(uc_priv);
/* Query partitions count using invalid arguments */
ret = ffa_partition_info_get(dev, NULL, NULL, NULL);
ut_asserteq(-EINVAL, ret);
ret = ffa_partition_info_get(dev, unvalid_svc_uuid, NULL, NULL);
ut_asserteq(-EINVAL, ret);
ret = ffa_partition_info_get(dev, unvalid_svc_uuid, &count, NULL);
ut_asserteq(-EINVAL, ret);
/* Query partitions count using an invalid UUID string */
ret = ffa_partition_info_get(dev, unvalid_svc_uuid_str, &count, &descs);
ut_asserteq(-EINVAL, ret);
/* Query partitions count using an invalid UUID (no matching SP) */
count = 0;
ret = ffa_partition_info_get(dev, unvalid_svc_uuid, &count, &descs);
ut_asserteq(0, count);
/* Query partitions data using a valid UUID */
count = 0;
ut_assertok(ffa_partition_info_get(dev, valid_svc_uuid, &count, &descs));
/* Make sure partitions are detected */
ut_asserteq(SANDBOX_SP_COUNT_PER_VALID_SERVICE, count);
ut_assertnonnull(descs);
/* Send data to an invalid partition */
ret = ffa_sync_send_receive(dev, part_id, &msg, 1);
ut_asserteq(-EINVAL, ret);
/* Send data to a valid partition */
part_id = uc_priv->partitions.descs[0].info.id;
ut_assertok(ffa_sync_send_receive(dev, part_id, &msg, 1));
return 0;
}
DM_TEST(dm_test_ffa_nack, UT_TESTF_SCAN_FDT | UT_TESTF_CONSOLE_REC);
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