From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from phobos.denx.de (phobos.denx.de [85.214.62.61]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 1755EC001E0 for ; Thu, 27 Jul 2023 16:16:05 +0000 (UTC) Received: from h2850616.stratoserver.net (localhost [IPv6:::1]) by phobos.denx.de (Postfix) with ESMTP id EDEDF8522C; Thu, 27 Jul 2023 18:16:01 +0200 (CEST) Authentication-Results: phobos.denx.de; dmarc=fail (p=none dis=none) header.from=arm.com Authentication-Results: phobos.denx.de; spf=pass smtp.mailfrom=u-boot-bounces@lists.denx.de Received: by phobos.denx.de (Postfix, from userid 109) id 4C5EF86875; Thu, 27 Jul 2023 18:07:44 +0200 (CEST) Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by phobos.denx.de (Postfix) with ESMTP id D4BCA867F0 for ; Thu, 27 Jul 2023 18:07:35 +0200 (CEST) Authentication-Results: phobos.denx.de; dmarc=pass (p=none dis=none) header.from=arm.com Authentication-Results: phobos.denx.de; spf=pass smtp.mailfrom=abdellatif.elkhlifi@arm.com Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 5A98BFEC; Thu, 27 Jul 2023 09:08:17 -0700 (PDT) Received: from e130802.cambridge.arm.com (e130802.arm.com [10.1.31.58]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 4D14C3F793; Thu, 27 Jul 2023 09:07:32 -0700 (PDT) From: Abdellatif El Khlifi To: trini@konsulko.com Cc: abdellatif.elkhlifi@arm.com, ilias.apalodimas@linaro.org, jens.wiklander@linaro.org, nd@arm.com, sjg@chromium.org, u-boot@lists.denx.de, Heinrich Schuchardt Subject: [PATCH v17 05/10] arm_ffa: introduce armffa command Date: Thu, 27 Jul 2023 17:07:07 +0100 Message-Id: <20230727160712.81477-6-abdellatif.elkhlifi@arm.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230727160712.81477-1-abdellatif.elkhlifi@arm.com> References: <20230726160635.GS3630934@bill-the-cat> <20230727160712.81477-1-abdellatif.elkhlifi@arm.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-BeenThere: u-boot@lists.denx.de X-Mailman-Version: 2.1.39 Precedence: list List-Id: U-Boot discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: u-boot-bounces@lists.denx.de Sender: "U-Boot" X-Virus-Scanned: clamav-milter 0.103.8 at phobos.denx.de X-Virus-Status: Clean Provide armffa command showcasing the use of the U-Boot FF-A support armffa is a command showcasing how to invoke FF-A operations. This provides a guidance to the client developers on how to call the FF-A bus interfaces. The command also allows to gather secure partitions information and ping these partitions. The command is also helpful in testing the communication with secure partitions. For more details please refer to the command documentation [1]. [1]: doc/usage/cmd/armffa.rst Signed-off-by: Abdellatif El Khlifi Reviewed-by: Simon Glass Cc: Tom Rini Cc: Ilias Apalodimas Cc: Jens Wiklander Cc: Heinrich Schuchardt --- Changelog: =============== v15: Simon: * armffa.c : integrate PHYS_ADDR_LN v14: Ilias: * address nits * in do_ffa_ping() reject the SP ID if it's 0 * use PHYS_ADDR_LN in formatting the physical addresses v12: * add subcommands argument checks * usage documentation: update command return codes * remove calloc when querying SPs * address nits v11: * use U_BOOT_CMD_WITH_SUBCMDS * address nits v10: * use the FF-A driver Uclass operations * use uclass_first_device() * address nits v9: * remove manual FF-A discovery and use DM * use DM class APIs to probe and interact with the FF-A bus * add doc/usage/cmd/armffa.rst v8: * update partition_info_get() second argument to be an SP count * pass NULL device pointer to the FF-A bus discovery and operations v7: * adapt do_ffa_dev_list() following the recent update on uclass_first_device/uclass_next_device functions (they return void now) * set armffa command to use 64-bit direct messaging v4: * remove pattern data in do_ffa_msg_send_direct_req v3: * use the new driver interfaces (partition_info_get, sync_send_receive) in armffa command v2: * replace use of ffa_helper_init_device function by ffa_helper_bus_discover v1: * introduce armffa command MAINTAINERS | 2 + cmd/Kconfig | 10 ++ cmd/Makefile | 1 + cmd/armffa.c | 202 +++++++++++++++++++++++++++++++ doc/arch/arm64.ffa.rst | 7 ++ doc/usage/cmd/armffa.rst | 94 ++++++++++++++ doc/usage/index.rst | 1 + drivers/firmware/arm-ffa/Kconfig | 1 + 8 files changed, 318 insertions(+) create mode 100644 cmd/armffa.c create mode 100644 doc/usage/cmd/armffa.rst diff --git a/MAINTAINERS b/MAINTAINERS index 4fd5768de0..7bfac78e59 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -269,7 +269,9 @@ F: configs/cortina_presidio-asic-pnand_defconfig ARM FF-A M: Abdellatif El Khlifi S: Maintained +F: cmd/armffa.c F: doc/arch/arm64.ffa.rst +F: doc/usage/cmd/armffa.rst F: drivers/firmware/arm-ffa/ F: include/arm_ffa.h F: include/sandbox_arm_ffa.h diff --git a/cmd/Kconfig b/cmd/Kconfig index 02e54f1e50..79b4f8367a 100644 --- a/cmd/Kconfig +++ b/cmd/Kconfig @@ -935,6 +935,16 @@ endmenu menu "Device access commands" +config CMD_ARMFFA + bool "Arm FF-A test command" + depends on ARM_FFA_TRANSPORT + help + Provides a test command for the FF-A support + supported options: + - Listing the partition(s) info + - Sending a data pattern to the specified partition + - Displaying the arm_ffa device info + config CMD_ARMFLASH #depends on FLASH_CFI_DRIVER bool "armflash" diff --git a/cmd/Makefile b/cmd/Makefile index 6c37521b4e..7d20a85a46 100644 --- a/cmd/Makefile +++ b/cmd/Makefile @@ -12,6 +12,7 @@ obj-y += panic.o obj-y += version.o # command +obj-$(CONFIG_CMD_ARMFFA) += armffa.o obj-$(CONFIG_CMD_2048) += 2048.o obj-$(CONFIG_CMD_ACPI) += acpi.o obj-$(CONFIG_CMD_ADDRMAP) += addrmap.o diff --git a/cmd/armffa.c b/cmd/armffa.c new file mode 100644 index 0000000000..7e6eafc03a --- /dev/null +++ b/cmd/armffa.c @@ -0,0 +1,202 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Copyright 2022-2023 Arm Limited and/or its affiliates + * + * Authors: + * Abdellatif El Khlifi + */ +#include +#include +#include +#include +#include +#include +#include + +/* Select the right physical address formatting according to the platform */ +#ifdef CONFIG_PHYS_64BIT +#define PhysAddrLength "ll" +#else +#define PhysAddrLength "" +#endif +#define PHYS_ADDR_LN "%" PhysAddrLength "x" + +/** + * ffa_get_dev() - Return the FF-A device + * @devp: pointer to the FF-A device + * + * Search for the FF-A device. + * + * Return: + * 0 on success. Otherwise, failure + */ +static int ffa_get_dev(struct udevice **devp) +{ + int ret; + + ret = uclass_first_device_err(UCLASS_FFA, devp); + if (ret) { + log_err("Cannot find FF-A bus device\n"); + return ret; + } + + return 0; +} + +/** + * do_ffa_getpart() - implementation of the getpart subcommand + * @cmdtp: Command Table + * @flag: flags + * @argc: number of arguments + * @argv: arguments + * + * Query a secure partition information. The secure partition UUID is provided + * as an argument. The function uses the arm_ffa driver + * partition_info_get operation which implements FFA_PARTITION_INFO_GET + * ABI to retrieve the data. The input UUID string is expected to be in big + * endian format. + * + * Return: + * + * CMD_RET_SUCCESS: on success, otherwise failure + */ +static int do_ffa_getpart(struct cmd_tbl *cmdtp, int flag, int argc, + char *const argv[]) +{ + u32 count = 0; + int ret; + struct ffa_partition_desc *descs; + u32 i; + struct udevice *dev; + + if (argc != 2) { + log_err("Missing argument\n"); + return CMD_RET_USAGE; + } + + ret = ffa_get_dev(&dev); + if (ret) + return CMD_RET_FAILURE; + + /* Ask the driver to fill the buffer with the SPs info */ + + ret = ffa_partition_info_get(dev, argv[1], &count, &descs); + if (ret) { + log_err("Failure in querying partition(s) info (error code: %d)\n", ret); + return CMD_RET_FAILURE; + } + + /* SPs found , show the partition information */ + for (i = 0; i < count ; i++) { + log_info("Partition: id = %x , exec_ctxt %x , properties %x\n", + descs[i].info.id, + descs[i].info.exec_ctxt, + descs[i].info.properties); + } + + return CMD_RET_SUCCESS; +} + +/** + * do_ffa_ping() - implementation of the ping subcommand + * @cmdtp: Command Table + * @flag: flags + * @argc: number of arguments + * @argv: arguments + * + * Send data to a secure partition. The secure partition UUID is provided + * as an argument. Use the arm_ffa driver sync_send_receive operation + * which implements FFA_MSG_SEND_DIRECT_{REQ,RESP} ABIs to send/receive data. + * + * Return: + * + * CMD_RET_SUCCESS: on success, otherwise failure + */ +static int do_ffa_ping(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[]) +{ + struct ffa_send_direct_data msg = { + .data0 = 0xaaaaaaaa, + .data1 = 0xbbbbbbbb, + .data2 = 0xcccccccc, + .data3 = 0xdddddddd, + .data4 = 0xeeeeeeee, + }; + u16 part_id; + int ret; + struct udevice *dev; + + if (argc != 2) { + log_err("Missing argument\n"); + return CMD_RET_USAGE; + } + + part_id = strtoul(argv[1], NULL, 16); + if (!part_id) { + log_err("Partition ID can not be 0\n"); + return CMD_RET_USAGE; + } + + ret = ffa_get_dev(&dev); + if (ret) + return CMD_RET_FAILURE; + + ret = ffa_sync_send_receive(dev, part_id, &msg, 1); + if (!ret) { + u8 cnt; + + log_info("SP response:\n[LSB]\n"); + for (cnt = 0; + cnt < sizeof(struct ffa_send_direct_data) / sizeof(u64); + cnt++) + log_info("%llx\n", ((u64 *)&msg)[cnt]); + return CMD_RET_SUCCESS; + } + + log_err("Sending direct request error (%d)\n", ret); + return CMD_RET_FAILURE; +} + +/** + *do_ffa_devlist() - implementation of the devlist subcommand + * @cmdtp: [in] Command Table + * @flag: flags + * @argc: number of arguments + * @argv: arguments + * + * Query the device belonging to the UCLASS_FFA + * class. + * + * Return: + * + * CMD_RET_SUCCESS: on success, otherwise failure + */ +static int do_ffa_devlist(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[]) +{ + struct udevice *dev; + int ret; + + ret = ffa_get_dev(&dev); + if (ret) + return CMD_RET_FAILURE; + + log_info("device %s, addr " PHYS_ADDR_LN ", driver %s, ops " PHYS_ADDR_LN "\n", + dev->name, + map_to_sysmem(dev), + dev->driver->name, + map_to_sysmem(dev->driver->ops)); + + return CMD_RET_SUCCESS; +} + +static char armffa_help_text[] = + "getpart \n" + " - lists the partition(s) info\n" + "ping \n" + " - sends a data pattern to the specified partition\n" + "devlist\n" + " - displays information about the FF-A device/driver\n"; + +U_BOOT_CMD_WITH_SUBCMDS(armffa, "Arm FF-A test command", armffa_help_text, + U_BOOT_SUBCMD_MKENT(getpart, 2, 1, do_ffa_getpart), + U_BOOT_SUBCMD_MKENT(ping, 2, 1, do_ffa_ping), + U_BOOT_SUBCMD_MKENT(devlist, 1, 1, do_ffa_devlist)); diff --git a/doc/arch/arm64.ffa.rst b/doc/arch/arm64.ffa.rst index 4f817f053c..aefd527447 100644 --- a/doc/arch/arm64.ffa.rst +++ b/doc/arch/arm64.ffa.rst @@ -205,6 +205,13 @@ The following features are provided: - FF-A bus can be compiled and used without EFI +The armffa command +----------------------------------- + +armffa is a command showcasing how to use the FF-A bus and how to invoke the driver operations. + +Please refer the command documentation at :doc:`../usage/cmd/armffa` + Example of boot logs with FF-A enabled -------------------------------------- diff --git a/doc/usage/cmd/armffa.rst b/doc/usage/cmd/armffa.rst new file mode 100644 index 0000000000..13fa90c129 --- /dev/null +++ b/doc/usage/cmd/armffa.rst @@ -0,0 +1,94 @@ +.. SPDX-License-Identifier: GPL-2.0+ +.. Copyright 2022-2023 Arm Limited and/or its affiliates + +armffa command +============== + +Synopsis +-------- + +:: + + armffa [sub-command] [arguments] + + sub-commands: + + getpart [partition UUID] + + lists the partition(s) info + + ping [partition ID] + + sends a data pattern to the specified partition + + devlist + + displays information about the FF-A device/driver + +Description +----------- + +armffa is a command showcasing how to use the FF-A bus and how to invoke its operations. + +This provides a guidance to the client developers on how to call the FF-A bus interfaces. + +The command also allows to gather secure partitions information and ping these partitions. + +The command is also helpful in testing the communication with secure partitions. + +Example +------- + +The following examples are run on Corstone-1000 platform. + +* ping + +:: + + corstone1000# armffa ping 0x8003 + SP response: + [LSB] + fffffffe + 0 + 0 + 0 + 0 + +* ping (failure case) + +:: + + corstone1000# armffa ping 0 + Sending direct request error (-22) + +* getpart + +:: + + corstone1000# armffa getpart 33d532ed-e699-0942-c09c-a798d9cd722d + Partition: id = 8003 , exec_ctxt 1 , properties 3 + +* getpart (failure case) + +:: + + corstone1000# armffa getpart 33d532ed-e699-0942-c09c-a798d9cd7221 + INVALID_PARAMETERS: Unrecognized UUID + Failure in querying partitions count (error code: -22) + +* devlist + +:: + + corstone1000# armffa devlist + device name arm_ffa, dev 00000000fdf41c30, driver name arm_ffa, ops 00000000fffc0e98 + +Configuration +------------- + +The command is available if CONFIG_CMD_ARMFFA=y and CONFIG_ARM_FFA_TRANSPORT=y. + +Return value +------------ + +The return value $? is 0 (true) on success, 1 (false) on failure. diff --git a/doc/usage/index.rst b/doc/usage/index.rst index 388e59f173..e462de2806 100644 --- a/doc/usage/index.rst +++ b/doc/usage/index.rst @@ -22,6 +22,7 @@ Shell commands cmd/acpi cmd/addrmap + cmd/armffa cmd/askenv cmd/base cmd/bdinfo diff --git a/drivers/firmware/arm-ffa/Kconfig b/drivers/firmware/arm-ffa/Kconfig index 9200c8028b..a7d5392859 100644 --- a/drivers/firmware/arm-ffa/Kconfig +++ b/drivers/firmware/arm-ffa/Kconfig @@ -5,6 +5,7 @@ config ARM_FFA_TRANSPORT depends on DM && ARM64 select ARM_SMCCC select ARM_SMCCC_FEATURES + imply CMD_ARMFFA select LIB_UUID select DEVRES help -- 2.25.1