diff options
Diffstat (limited to 'drivers/firmware/arm-ffa/ffa-emul-uclass.c')
| -rw-r--r-- | drivers/firmware/arm-ffa/ffa-emul-uclass.c | 720 |
1 files changed, 720 insertions, 0 deletions
diff --git a/drivers/firmware/arm-ffa/ffa-emul-uclass.c b/drivers/firmware/arm-ffa/ffa-emul-uclass.c new file mode 100644 index 00000000000..5562bbaac3a --- /dev/null +++ b/drivers/firmware/arm-ffa/ffa-emul-uclass.c @@ -0,0 +1,720 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * 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 <dm.h> +#include <mapmem.h> +#include <string.h> +#include <asm/global_data.h> +#include <asm/sandbox_arm_ffa.h> +#include <asm/sandbox_arm_ffa_priv.h> +#include <dm/device-internal.h> +#include <dm/lists.h> +#include <dm/root.h> +#include <linux/errno.h> +#include <linux/sizes.h> + +DECLARE_GLOBAL_DATA_PTR; + +/* The partitions (SPs) table */ +static struct ffa_partition_desc sandbox_partitions[SANDBOX_PARTITIONS_CNT] = { + { + .info = { .id = SANDBOX_SP1_ID, .exec_ctxt = 0x5687, .properties = 0x89325621 }, + .sp_uuid = { + .a1 = SANDBOX_SERVICE1_UUID_A1, + .a2 = SANDBOX_SERVICE1_UUID_A2, + .a3 = SANDBOX_SERVICE1_UUID_A3, + .a4 = SANDBOX_SERVICE1_UUID_A4, + } + }, + { + .info = { .id = SANDBOX_SP3_ID, .exec_ctxt = 0x7687, .properties = 0x23325621 }, + .sp_uuid = { + .a1 = SANDBOX_SERVICE2_UUID_A1, + .a2 = SANDBOX_SERVICE2_UUID_A2, + .a3 = SANDBOX_SERVICE2_UUID_A3, + .a4 = SANDBOX_SERVICE2_UUID_A4, + } + }, + { + .info = { .id = SANDBOX_SP2_ID, .exec_ctxt = 0x9587, .properties = 0x45325621 }, + .sp_uuid = { + .a1 = SANDBOX_SERVICE1_UUID_A1, + .a2 = SANDBOX_SERVICE1_UUID_A2, + .a3 = SANDBOX_SERVICE1_UUID_A3, + .a4 = SANDBOX_SERVICE1_UUID_A4, + } + }, + { + .info = { .id = SANDBOX_SP4_ID, .exec_ctxt = 0x1487, .properties = 0x70325621 }, + .sp_uuid = { + .a1 = SANDBOX_SERVICE2_UUID_A1, + .a2 = SANDBOX_SERVICE2_UUID_A2, + .a3 = SANDBOX_SERVICE2_UUID_A3, + .a4 = SANDBOX_SERVICE2_UUID_A4, + } + } + +}; + +/* The emulator functions */ + +/** + * sandbox_ffa_version() - Emulated FFA_VERSION handler function + * @emul: The sandbox FF-A emulator device + * @pargs: The SMC call input arguments a0-a7 + * @res: The SMC return data + * + * Emulate FFA_VERSION FF-A function. + * + * Return: + * + * 0 on success. Otherwise, failure + */ + +static int sandbox_ffa_version(struct udevice *emul, ffa_value_t *pargs, ffa_value_t *res) +{ + struct sandbox_ffa_emul *priv = dev_get_priv(emul); + + priv->fwk_version = FFA_VERSION_1_0; + res->a0 = priv->fwk_version; + + /* x1-x7 MBZ */ + memset(FFA_X1X7_MBZ_REG_START, 0, FFA_X1X7_MBZ_CNT * sizeof(ulong)); + + return 0; +} + +/** + * sandbox_ffa_id_get() - Emulated FFA_ID_GET handler function + * @emul: The sandbox FF-A emulator device + * @pargs: The SMC call input arguments a0-a7 + * @res: The SMC return data + * + * Emulate FFA_ID_GET FF-A function. + * + * Return: + * + * 0 on success. Otherwise, failure + */ +static int sandbox_ffa_id_get(struct udevice *emul, ffa_value_t *pargs, ffa_value_t *res) +{ + struct sandbox_ffa_emul *priv = dev_get_priv(emul); + + res->a0 = FFA_SMC_32(FFA_SUCCESS); + res->a1 = 0; + + priv->id = NS_PHYS_ENDPOINT_ID; + res->a2 = priv->id; + + /* x3-x7 MBZ */ + memset(FFA_X3_MBZ_REG_START, 0, FFA_X3X7_MBZ_CNT * sizeof(ulong)); + + return 0; +} + +/** + * sandbox_ffa_features() - Emulated FFA_FEATURES handler function + * @pargs: The SMC call input arguments a0-a7 + * @res: The SMC return data + * + * Emulate FFA_FEATURES FF-A function. + * + * Return: + * + * 0 on success. Otherwise, failure + */ +static int sandbox_ffa_features(ffa_value_t *pargs, ffa_value_t *res) +{ + res->a1 = 0; + + if (pargs->a1 == FFA_SMC_64(FFA_RXTX_MAP)) { + res->a0 = FFA_SMC_32(FFA_SUCCESS); + res->a2 = RXTX_BUFFERS_MIN_SIZE; + res->a3 = 0; + /* x4-x7 MBZ */ + memset(FFA_X4X7_MBZ_REG_START, 0, FFA_X4X7_MBZ_CNT * sizeof(ulong)); + return 0; + } + + res->a0 = FFA_SMC_32(FFA_ERROR); + res->a2 = -NOT_SUPPORTED; + /* x3-x7 MBZ */ + memset(FFA_X3_MBZ_REG_START, 0, FFA_X3X7_MBZ_CNT * sizeof(ulong)); + log_err("FF-A interface %lx not implemented\n", pargs->a1); + + return ffa_to_std_errmap[NOT_SUPPORTED]; +} + +/** + * sandbox_ffa_partition_info_get() - Emulated FFA_PARTITION_INFO_GET handler + * @emul: The sandbox FF-A emulator device + * @pargs: The SMC call input arguments a0-a7 + * @res: The SMC return data + * + * Emulate FFA_PARTITION_INFO_GET FF-A function. + * + * Return: + * + * 0 on success. Otherwise, failure + */ +static int sandbox_ffa_partition_info_get(struct udevice *emul, ffa_value_t *pargs, + ffa_value_t *res) +{ + struct ffa_partition_info *rxbuf_desc_info = NULL; + u32 descs_cnt; + u32 descs_size_bytes; + int ret; + struct sandbox_ffa_emul *priv = dev_get_priv(emul); + + res->a0 = FFA_SMC_32(FFA_ERROR); + + if (!priv->pair.rxbuf) { + res->a2 = -DENIED; + ret = ffa_to_std_errmap[DENIED]; + goto cleanup; + } + + if (priv->pair_info.rxbuf_owned) { + res->a2 = -BUSY; + ret = ffa_to_std_errmap[BUSY]; + goto cleanup; + } + + if (!priv->partitions.descs) { + priv->partitions.descs = sandbox_partitions; + priv->partitions.count = SANDBOX_PARTITIONS_CNT; + } + + descs_size_bytes = SANDBOX_PARTITIONS_CNT * + sizeof(struct ffa_partition_desc); + + /* Abort if the RX buffer size is smaller than the descs buffer size */ + if ((priv->pair_info.rxtx_buf_size * SZ_4K) < descs_size_bytes) { + res->a2 = -NO_MEMORY; + ret = ffa_to_std_errmap[NO_MEMORY]; + goto cleanup; + } + + rxbuf_desc_info = priv->pair.rxbuf; + + /* No UUID specified. Return the information of all partitions */ + if (!pargs->a1 && !pargs->a2 && !pargs->a3 && !pargs->a4) { + for (descs_cnt = 0; descs_cnt < SANDBOX_PARTITIONS_CNT; descs_cnt++) + *(rxbuf_desc_info++) = priv->partitions.descs[descs_cnt].info; + + res->a0 = FFA_SMC_32(FFA_SUCCESS); + res->a2 = SANDBOX_PARTITIONS_CNT; + /* Transfer ownership to the consumer: the non secure world */ + priv->pair_info.rxbuf_owned = 1; + ret = 0; + + goto cleanup; + } + + /* A UUID specified. Return the info of all SPs matching the UUID */ + + for (descs_cnt = 0 ; descs_cnt < SANDBOX_PARTITIONS_CNT ; descs_cnt++) + if (pargs->a1 == priv->partitions.descs[descs_cnt].sp_uuid.a1 && + pargs->a2 == priv->partitions.descs[descs_cnt].sp_uuid.a2 && + pargs->a3 == priv->partitions.descs[descs_cnt].sp_uuid.a3 && + pargs->a4 == priv->partitions.descs[descs_cnt].sp_uuid.a4) { + *(rxbuf_desc_info++) = priv->partitions.descs[descs_cnt].info; + } + + if (rxbuf_desc_info != priv->pair.rxbuf) { + res->a0 = FFA_SMC_32(FFA_SUCCESS); + /* Store the partitions count */ + res->a2 = (ulong) + (rxbuf_desc_info - (struct ffa_partition_info *) + priv->pair.rxbuf); + ret = 0; + + /* Transfer ownership to the consumer: the non secure world */ + priv->pair_info.rxbuf_owned = 1; + } else { + /* Unrecognized UUID */ + res->a2 = -INVALID_PARAMETERS; + ret = ffa_to_std_errmap[INVALID_PARAMETERS]; + } + +cleanup: + + log_err("FFA_PARTITION_INFO_GET (%ld)\n", res->a2); + + res->a1 = 0; + + /* x3-x7 MBZ */ + memset(FFA_X3_MBZ_REG_START, 0, FFA_X3X7_MBZ_CNT * sizeof(ulong)); + + return ret; +} + +/** + * sandbox_ffa_rxtx_map() - Emulated FFA_RXTX_MAP handler + * @emul: The sandbox FF-A emulator device + * @pargs: The SMC call input arguments a0-a7 + * @res: The SMC return data + * + * Emulate FFA_RXTX_MAP FF-A function. + * + * Return: + * + * 0 on success. Otherwise, failure + */ +static int sandbox_ffa_rxtx_map(struct udevice *emul, ffa_value_t *pargs, ffa_value_t *res) +{ + int ret; + struct sandbox_ffa_emul *priv = dev_get_priv(emul); + + res->a0 = FFA_SMC_32(FFA_ERROR); + + if (priv->pair.txbuf && priv->pair.rxbuf) { + res->a2 = -DENIED; + ret = ffa_to_std_errmap[DENIED]; + goto feedback; + } + + if (pargs->a3 >= RXTX_BUFFERS_MIN_PAGES && pargs->a1 && pargs->a2) { + priv->pair.txbuf = map_sysmem(pargs->a1, 0); + priv->pair.rxbuf = map_sysmem(pargs->a2, 0); + priv->pair_info.rxtx_buf_size = pargs->a3; + priv->pair_info.rxbuf_mapped = 1; + res->a0 = FFA_SMC_32(FFA_SUCCESS); + res->a2 = 0; + ret = 0; + goto feedback; + } + + if (!pargs->a1 || !pargs->a2) { + res->a2 = -INVALID_PARAMETERS; + ret = ffa_to_std_errmap[INVALID_PARAMETERS]; + } else { + res->a2 = -NO_MEMORY; + ret = ffa_to_std_errmap[NO_MEMORY]; + } + + log_err("Error in FFA_RXTX_MAP arguments (%d)\n", + (int)res->a2); + +feedback: + + res->a1 = 0; + + /* x3-x7 MBZ */ + memset(FFA_X3_MBZ_REG_START, 0, FFA_X3X7_MBZ_CNT * sizeof(ulong)); + + return ret; +} + +/** + * sandbox_ffa_rxtx_unmap() - Emulated FFA_RXTX_UNMAP handler + * @emul: The sandbox FF-A emulator device + * @pargs: The SMC call input arguments a0-a7 + * @res: The SMC return data + * + * Emulate FFA_RXTX_UNMAP FF-A function. + * + * Return: + * + * 0 on success. Otherwise, failure + */ +static int sandbox_ffa_rxtx_unmap(struct udevice *emul, ffa_value_t *pargs, ffa_value_t *res) +{ + int ret; + struct sandbox_ffa_emul *priv = dev_get_priv(emul); + + res->a0 = FFA_SMC_32(FFA_ERROR); + res->a2 = -INVALID_PARAMETERS; + ret = ffa_to_std_errmap[INVALID_PARAMETERS]; + + if (GET_NS_PHYS_ENDPOINT_ID(pargs->a1) != priv->id) + goto feedback; + + if (priv->pair.txbuf && priv->pair.rxbuf) { + priv->pair.txbuf = 0; + priv->pair.rxbuf = 0; + priv->pair_info.rxtx_buf_size = 0; + priv->pair_info.rxbuf_mapped = 0; + res->a0 = FFA_SMC_32(FFA_SUCCESS); + res->a2 = 0; + ret = 0; + goto feedback; + } + + log_err("No buffer pair registered on behalf of the caller\n"); + +feedback: + + res->a1 = 0; + + /* x3-x7 MBZ */ + memset(FFA_X3_MBZ_REG_START, 0, FFA_X3X7_MBZ_CNT * sizeof(ulong)); + + return ret; +} + +/** + * sandbox_ffa_rx_release() - Emulated FFA_RX_RELEASE handler + * @emul: The sandbox FF-A emulator device + * @pargs: The SMC call input arguments a0-a7 + * @res: The SMC return data + * + * Emulate FFA_RX_RELEASE FF-A function. + * + * Return: + * + * 0 on success. Otherwise, failure + */ +static int sandbox_ffa_rx_release(struct udevice *emul, ffa_value_t *pargs, ffa_value_t *res) +{ + int ret; + struct sandbox_ffa_emul *priv = dev_get_priv(emul); + + if (!priv->pair_info.rxbuf_owned) { + res->a0 = FFA_SMC_32(FFA_ERROR); + res->a2 = -DENIED; + ret = ffa_to_std_errmap[DENIED]; + } else { + priv->pair_info.rxbuf_owned = 0; + res->a0 = FFA_SMC_32(FFA_SUCCESS); + res->a2 = 0; + ret = 0; + } + + res->a1 = 0; + + /* x3-x7 MBZ */ + memset(FFA_X3_MBZ_REG_START, 0, FFA_X3X7_MBZ_CNT * sizeof(ulong)); + + return ret; +} + +/** + * sandbox_ffa_sp_valid() - Check SP validity + * @emul: The sandbox FF-A emulator device + * @part_id: partition ID to check + * + * Search the input ID in the descriptors table. + * + * Return: + * + * 1 on success (Partition found). Otherwise, failure + */ +static int sandbox_ffa_sp_valid(struct udevice *emul, u16 part_id) +{ + u32 descs_cnt; + struct sandbox_ffa_emul *priv = dev_get_priv(emul); + + for (descs_cnt = 0 ; descs_cnt < SANDBOX_PARTITIONS_CNT ; descs_cnt++) + if (priv->partitions.descs[descs_cnt].info.id == part_id) + return 1; + + return 0; +} + +/** + * sandbox_ffa_msg_send_direct_req() - Emulated FFA_MSG_SEND_DIRECT_{REQ,RESP} handler + * @emul: The sandbox FF-A emulator device + * @pargs: The SMC call input arguments a0-a7 + * @res: The SMC return data + * + * Emulate FFA_MSG_SEND_DIRECT_{REQ,RESP} FF-A ABIs. + * Only SMC 64-bit is supported in Sandbox. + * + * Emulating interrupts is not supported. So, FFA_RUN and FFA_INTERRUPT are not + * supported. In case of success FFA_MSG_SEND_DIRECT_RESP is returned with + * default pattern data (0xff). + * + * Return: + * + * 0 on success. Otherwise, failure + */ +static int sandbox_ffa_msg_send_direct_req(struct udevice *emul, + ffa_value_t *pargs, ffa_value_t *res) +{ + u16 part_id; + struct sandbox_ffa_emul *priv = dev_get_priv(emul); + + part_id = GET_DST_SP_ID(pargs->a1); + + if (GET_NS_PHYS_ENDPOINT_ID(pargs->a1) != priv->id || + !sandbox_ffa_sp_valid(emul, part_id) || pargs->a2) { + res->a0 = FFA_SMC_32(FFA_ERROR); + res->a1 = 0; + res->a2 = -INVALID_PARAMETERS; + + /* x3-x7 MBZ */ + memset(FFA_X3_MBZ_REG_START, 0, FFA_X3X7_MBZ_CNT * sizeof(ulong)); + + return ffa_to_std_errmap[INVALID_PARAMETERS]; + } + + res->a0 = FFA_SMC_64(FFA_MSG_SEND_DIRECT_RESP); + + res->a1 = PREP_SRC_SP_ID(part_id) | + PREP_NS_PHYS_ENDPOINT_ID(priv->id); + + res->a2 = 0; + + /* Return 0xff bytes as a response */ + res->a3 = -1UL; + res->a4 = -1UL; + res->a5 = -1UL; + res->a6 = -1UL; + res->a7 = -1UL; + + return 0; +} + +/** + * sandbox_ffa_get_rxbuf_flags() - Read the mapping/ownership flags + * @emul: The sandbox FF-A emulator device + * @queried_func_id: The FF-A function to be queried + * @func_data: Pointer to the FF-A function arguments container structure + * + * Query the status flags of the following emulated + * ABIs: FFA_RXTX_MAP, FFA_RXTX_UNMAP, FFA_RX_RELEASE. + * + * Return: + * + * 0 on success. Otherwise, failure + */ +static int sandbox_ffa_get_rxbuf_flags(struct udevice *emul, u32 queried_func_id, + struct ffa_sandbox_data *func_data) +{ + struct sandbox_ffa_emul *priv = dev_get_priv(emul); + + if (!func_data) + return -EINVAL; + + if (!func_data->data0 || func_data->data0_size != sizeof(u8)) + return -EINVAL; + + switch (queried_func_id) { + case FFA_RXTX_MAP: + case FFA_RXTX_UNMAP: + *((u8 *)func_data->data0) = priv->pair_info.rxbuf_mapped; + return 0; + case FFA_RX_RELEASE: + *((u8 *)func_data->data0) = priv->pair_info.rxbuf_owned; + return 0; + default: + log_err("The querried FF-A interface flag (%d) undefined\n", + queried_func_id); + return -EINVAL; + } +} + +/** + * sandbox_ffa_get_fwk_version() - Return the FFA framework version + * @emul: The sandbox FF-A emulator device + * @func_data: Pointer to the FF-A function arguments container structure + * + * Return the FFA framework version read from the FF-A emulator data. + * + * Return: + * + * 0 on success. Otherwise, failure + */ +static int sandbox_ffa_get_fwk_version(struct udevice *emul, struct ffa_sandbox_data *func_data) +{ + struct sandbox_ffa_emul *priv = dev_get_priv(emul); + + if (!func_data) + return -EINVAL; + + if (!func_data->data0 || + func_data->data0_size != sizeof(priv->fwk_version)) + return -EINVAL; + + *((u32 *)func_data->data0) = priv->fwk_version; + + return 0; +} + +/** + * sandbox_ffa_get_parts() - Return the address of partitions data + * @emul: The sandbox FF-A emulator device + * @func_data: Pointer to the FF-A function arguments container structure + * + * Return the address of partitions data read from the FF-A emulator data. + * + * Return: + * + * 0 on success. Otherwise, failure + */ +static int sandbox_ffa_get_parts(struct udevice *emul, struct ffa_sandbox_data *func_data) +{ + struct sandbox_ffa_emul *priv = dev_get_priv(emul); + + if (!func_data) + return -EINVAL; + + if (!func_data->data0 || + func_data->data0_size != sizeof(struct ffa_partitions *)) + return -EINVAL; + + *((struct ffa_partitions **)func_data->data0) = &priv->partitions; + + return 0; +} + +/** + * sandbox_query_ffa_emul_state() - Inspect the FF-A ABIs + * @queried_func_id: The FF-A function to be queried + * @func_data: Pointer to the FF-A function arguments container structure + * + * Query the status of FF-A ABI specified in the input argument. + * + * Return: + * + * 0 on success. Otherwise, failure + */ +int sandbox_query_ffa_emul_state(u32 queried_func_id, + struct ffa_sandbox_data *func_data) +{ + struct udevice *emul; + int ret; + + ret = uclass_first_device_err(UCLASS_FFA_EMUL, &emul); + if (ret) { + log_err("Cannot find FF-A emulator during querying state\n"); + return ret; + } + + switch (queried_func_id) { + case FFA_RXTX_MAP: + case FFA_RXTX_UNMAP: + case FFA_RX_RELEASE: + return sandbox_ffa_get_rxbuf_flags(emul, queried_func_id, func_data); + case FFA_VERSION: + return sandbox_ffa_get_fwk_version(emul, func_data); + case FFA_PARTITION_INFO_GET: + return sandbox_ffa_get_parts(emul, func_data); + default: + log_err("Undefined FF-A interface (%d)\n", + queried_func_id); + return -EINVAL; + } +} + +/** + * sandbox_arm_ffa_smccc_smc() - FF-A SMC call emulation + * @args: the SMC call arguments + * @res: the SMC call returned data + * + * Emulate the FF-A ABIs SMC call. + * The emulated FF-A ABI is identified and invoked. + * FF-A emulation is based on the FF-A specification 1.0 + * + * Return: + * + * 0 on success. Otherwise, failure. + * FF-A protocol error codes are returned using the registers arguments as + * described by the specification + */ +void sandbox_arm_ffa_smccc_smc(ffa_value_t *args, ffa_value_t *res) +{ + int ret = 0; + struct udevice *emul; + + ret = uclass_first_device_err(UCLASS_FFA_EMUL, &emul); + if (ret) { + log_err("Cannot find FF-A emulator during SMC emulation\n"); + return; + } + + switch (args->a0) { + case FFA_SMC_32(FFA_VERSION): + ret = sandbox_ffa_version(emul, args, res); + break; + case FFA_SMC_32(FFA_PARTITION_INFO_GET): + ret = sandbox_ffa_partition_info_get(emul, args, res); + break; + case FFA_SMC_32(FFA_RXTX_UNMAP): + ret = sandbox_ffa_rxtx_unmap(emul, args, res); + break; + case FFA_SMC_64(FFA_MSG_SEND_DIRECT_REQ): + ret = sandbox_ffa_msg_send_direct_req(emul, args, res); + break; + case FFA_SMC_32(FFA_ID_GET): + ret = sandbox_ffa_id_get(emul, args, res); + break; + case FFA_SMC_32(FFA_FEATURES): + ret = sandbox_ffa_features(args, res); + break; + case FFA_SMC_64(FFA_RXTX_MAP): + ret = sandbox_ffa_rxtx_map(emul, args, res); + break; + case FFA_SMC_32(FFA_RX_RELEASE): + ret = sandbox_ffa_rx_release(emul, args, res); + break; + default: + log_err("Undefined FF-A interface (%lx)\n", + args->a0); + } + + if (ret != 0) + log_err("FF-A ABI internal failure (%d)\n", ret); +} + +/** + * invoke_ffa_fn() - SMC wrapper + * @args: FF-A ABI arguments to be copied to Xn registers + * @res: FF-A ABI return data to be copied from Xn registers + * + * Calls the emulated SMC call. + */ +void invoke_ffa_fn(ffa_value_t args, ffa_value_t *res) +{ + sandbox_arm_ffa_smccc_smc(&args, res); +} + +/** + * ffa_emul_find() - Find the FF-A emulator + * @dev: the sandbox FF-A device (sandbox-arm-ffa) + * @emulp: the FF-A emulator device (sandbox-ffa-emul) + * + * Search for the FF-A emulator and returns its device pointer. + * + * Return: + * 0 on success. Otherwise, failure + */ +int ffa_emul_find(struct udevice *dev, struct udevice **emulp) +{ + int ret; + + ret = uclass_first_device_err(UCLASS_FFA_EMUL, emulp); + if (ret) { + log_err("Cannot find FF-A emulator\n"); + return ret; + } + + log_info("FF-A emulator ready to use\n"); + + return 0; +} + +UCLASS_DRIVER(ffa_emul) = { + .name = "ffa_emul", + .id = UCLASS_FFA_EMUL, + .post_bind = dm_scan_fdt_dev, +}; + +static const struct udevice_id sandbox_ffa_emul_ids[] = { + { .compatible = "sandbox,arm-ffa-emul" }, + { } +}; + +/* Declaring the sandbox FF-A emulator under UCLASS_FFA_EMUL */ +U_BOOT_DRIVER(sandbox_ffa_emul) = { + .name = "sandbox_ffa_emul", + .id = UCLASS_FFA_EMUL, + .of_match = sandbox_ffa_emul_ids, + .priv_auto = sizeof(struct sandbox_ffa_emul), +}; |