F: drivers/net/phy/ca_phy.c
F: configs/cortina_presidio-asic-pnand_defconfig
-ARM FF-A
-M: Abdellatif El Khlifi <abdellatif.elkhlifi@arm.com>
-S: Maintained
-F: arch/sandbox/include/asm/sandbox_arm_ffa.h
-F: arch/sandbox/include/asm/sandbox_arm_ffa_priv.h
-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: test/cmd/armffa.c
-F: test/dm/ffa.c
-
ARM FREESCALE IMX
M: Stefano Babic <sbabic@denx.de>
M: Fabio Estevam <festevam@gmail.com>
F: arch/arm/dts/ls1021a-twr-u-boot.dtsi
F: drivers/crypto/fsl/
F: include/fsl_sec.h
-
-UUID testing
-M: Abdellatif El Khlifi <abdellatif.elkhlifi@arm.com>
-S: Maintained
-F: test/lib/uuid.c
/* SPDX-License-Identifier: GPL-2.0 */
/*
* Copyright (c) 2015, Linaro Limited
- * Copyright 2022-2023 Arm Limited and/or its affiliates <open-source-office@arm.com>
- *
- * Authors:
- * Abdellatif El Khlifi <abdellatif.elkhlifi@arm.com>
-*/
+ */
#include <linux/linkage.h>
#include <linux/arm-smccc.h>
#include <generated/asm-offsets.h>
ENTRY(__arm_smccc_hvc)
SMCCC hvc
ENDPROC(__arm_smccc_hvc)
-
-#ifdef CONFIG_ARM64
-
- .macro SMCCC_1_2 instr
- /* Save `res` and free a GPR that won't be clobbered */
- stp x1, x19, [sp, #-16]!
-
- /* Ensure `args` won't be clobbered while loading regs in next step */
- mov x19, x0
-
- /* Load the registers x0 - x17 from the struct arm_smccc_1_2_regs */
- ldp x0, x1, [x19, #ARM_SMCCC_1_2_REGS_X0_OFFS]
- ldp x2, x3, [x19, #ARM_SMCCC_1_2_REGS_X2_OFFS]
- ldp x4, x5, [x19, #ARM_SMCCC_1_2_REGS_X4_OFFS]
- ldp x6, x7, [x19, #ARM_SMCCC_1_2_REGS_X6_OFFS]
- ldp x8, x9, [x19, #ARM_SMCCC_1_2_REGS_X8_OFFS]
- ldp x10, x11, [x19, #ARM_SMCCC_1_2_REGS_X10_OFFS]
- ldp x12, x13, [x19, #ARM_SMCCC_1_2_REGS_X12_OFFS]
- ldp x14, x15, [x19, #ARM_SMCCC_1_2_REGS_X14_OFFS]
- ldp x16, x17, [x19, #ARM_SMCCC_1_2_REGS_X16_OFFS]
-
- \instr #0
-
- /* Load the `res` from the stack */
- ldr x19, [sp]
-
- /* Store the registers x0 - x17 into the result structure */
- stp x0, x1, [x19, #ARM_SMCCC_1_2_REGS_X0_OFFS]
- stp x2, x3, [x19, #ARM_SMCCC_1_2_REGS_X2_OFFS]
- stp x4, x5, [x19, #ARM_SMCCC_1_2_REGS_X4_OFFS]
- stp x6, x7, [x19, #ARM_SMCCC_1_2_REGS_X6_OFFS]
- stp x8, x9, [x19, #ARM_SMCCC_1_2_REGS_X8_OFFS]
- stp x10, x11, [x19, #ARM_SMCCC_1_2_REGS_X10_OFFS]
- stp x12, x13, [x19, #ARM_SMCCC_1_2_REGS_X12_OFFS]
- stp x14, x15, [x19, #ARM_SMCCC_1_2_REGS_X14_OFFS]
- stp x16, x17, [x19, #ARM_SMCCC_1_2_REGS_X16_OFFS]
-
- /* Restore original x19 */
- ldp xzr, x19, [sp], #16
- ret
- .endm
-
-/*
- * void arm_smccc_1_2_smc(const struct arm_smccc_1_2_regs *args,
- * struct arm_smccc_1_2_regs *res);
- */
-ENTRY(arm_smccc_1_2_smc)
- SMCCC_1_2 smc
-ENDPROC(arm_smccc_1_2_smc)
-
-#endif
* generate asm statements containing #defines,
* compile this file to assembler, and then extract the
* #defines from the assembly-language output.
- *
- * 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>
DEFINE(ARM_SMCCC_RES_X2_OFFS, offsetof(struct arm_smccc_res, a2));
DEFINE(ARM_SMCCC_QUIRK_ID_OFFS, offsetof(struct arm_smccc_quirk, id));
DEFINE(ARM_SMCCC_QUIRK_STATE_OFFS, offsetof(struct arm_smccc_quirk, state));
-#ifdef CONFIG_ARM64
- DEFINE(ARM_SMCCC_1_2_REGS_X0_OFFS, offsetof(struct arm_smccc_1_2_regs, a0));
- DEFINE(ARM_SMCCC_1_2_REGS_X2_OFFS, offsetof(struct arm_smccc_1_2_regs, a2));
- DEFINE(ARM_SMCCC_1_2_REGS_X4_OFFS, offsetof(struct arm_smccc_1_2_regs, a4));
- DEFINE(ARM_SMCCC_1_2_REGS_X6_OFFS, offsetof(struct arm_smccc_1_2_regs, a6));
- DEFINE(ARM_SMCCC_1_2_REGS_X8_OFFS, offsetof(struct arm_smccc_1_2_regs, a8));
- DEFINE(ARM_SMCCC_1_2_REGS_X10_OFFS, offsetof(struct arm_smccc_1_2_regs, a10));
- DEFINE(ARM_SMCCC_1_2_REGS_X12_OFFS, offsetof(struct arm_smccc_1_2_regs, a12));
- DEFINE(ARM_SMCCC_1_2_REGS_X14_OFFS, offsetof(struct arm_smccc_1_2_regs, a14));
- DEFINE(ARM_SMCCC_1_2_REGS_X16_OFFS, offsetof(struct arm_smccc_1_2_regs, a16));
-#endif
#endif
return 0;
thermal {
compatible = "sandbox,thermal";
};
-
- arm-ffa-emul {
- compatible = "sandbox,arm-ffa-emul";
-
- sandbox-arm-ffa {
- compatible = "sandbox,arm-ffa";
- };
- };
-
};
&cros_ec {
extcon {
compatible = "sandbox,extcon";
};
-
- arm-ffa-emul {
- compatible = "sandbox,arm-ffa-emul";
-
- sandbox-arm-ffa {
- compatible = "sandbox,arm-ffa";
- };
- };
};
#include "sandbox_pmic.dtsi"
+++ /dev/null
-/* 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>
- */
-
-#ifndef __SANDBOX_ARM_FFA_H
-#define __SANDBOX_ARM_FFA_H
-
-#include <arm_ffa.h>
-
-/*
- * This header provides public sandbox FF-A emulator declarations
- * and declarations needed by FF-A sandbox clients
- */
-
-/* UUIDs strings of the emulated services */
-#define SANDBOX_SERVICE1_UUID "ed32d533-4209-99e6-2d72-cdd998a79cc0"
-#define SANDBOX_SERVICE2_UUID "ed32d544-4209-99e6-2d72-cdd998a79cc0"
-
-/* IDs of the emulated secure partitions (SPs) */
-#define SANDBOX_SP1_ID 0x1245
-#define SANDBOX_SP2_ID 0x9836
-#define SANDBOX_SP3_ID 0x6452
-#define SANDBOX_SP4_ID 0x7814
-
-/* Invalid service UUID (no matching SP) */
-#define SANDBOX_SERVICE3_UUID "55d532ed-0942-e699-722d-c09ca798d9cd"
-
-/* Invalid service UUID (invalid UUID string format) */
-#define SANDBOX_SERVICE4_UUID "32ed-0942-e699-722d-c09ca798d9cd"
-
-/* Number of valid services */
-#define SANDBOX_SP_COUNT_PER_VALID_SERVICE 2
-
-/**
- * struct ffa_sandbox_data - query ABI state data structure
- * @data0_size: size of the first argument
- * @data0: pointer to the first argument
- * @data1_size>: size of the second argument
- * @data1: pointer to the second argument
- *
- * Used to pass various types of data with different sizes between
- * the test cases and the sandbox emulator.
- * The data is for querying FF-A ABIs state.
- */
-struct ffa_sandbox_data {
- u32 data0_size; /* size of the first argument */
- void *data0; /* pointer to the first argument */
- u32 data1_size; /* size of the second argument */
- void *data1; /* pointer to the second argument */
-};
-
-/* The sandbox FF-A emulator public functions */
-
-/**
- * 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);
-
-#endif
+++ /dev/null
-/* 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>
- */
-
-#ifndef __SANDBOX_ARM_FFA_PRV_H
-#define __SANDBOX_ARM_FFA_PRV_H
-
-#include <arm_ffa_priv.h>
-
-/* This header is exclusively used by the Sandbox FF-A driver and emulator */
-
-/* Non-secure physical FF-A instance */
-#define NS_PHYS_ENDPOINT_ID (0)
-
-#define GET_NS_PHYS_ENDPOINT_ID_MASK GENMASK(31, 16)
-#define GET_NS_PHYS_ENDPOINT_ID(x) \
- ((u16)(FIELD_GET(GET_NS_PHYS_ENDPOINT_ID_MASK, (x))))
-
-/* Helper macro for reading the destination partition ID */
-#define GET_DST_SP_ID_MASK GENMASK(15, 0)
-#define GET_DST_SP_ID(x) \
- ((u16)(FIELD_GET(GET_DST_SP_ID_MASK, (x))))
-
-/* Helper macro for setting the source partition ID */
-#define PREP_SRC_SP_ID_MASK GENMASK(31, 16)
-#define PREP_SRC_SP_ID(x) \
- (FIELD_PREP(PREP_SRC_SP_ID_MASK, (x)))
-
-/* Helper macro for setting the destination endpoint ID */
-#define PREP_NS_PHYS_ENDPOINT_ID_MASK GENMASK(15, 0)
-#define PREP_NS_PHYS_ENDPOINT_ID(x) \
- (FIELD_PREP(PREP_NS_PHYS_ENDPOINT_ID_MASK, (x)))
-
-/* RX/TX buffers minimum size */
-#define RXTX_BUFFERS_MIN_SIZE (RXTX_4K)
-#define RXTX_BUFFERS_MIN_PAGES (1)
-
-/* MBZ registers info */
-
-/* x1-x7 MBZ */
-#define FFA_X1X7_MBZ_CNT (7)
-#define FFA_X1X7_MBZ_REG_START (&res->a1)
-
-/* x4-x7 MBZ */
-#define FFA_X4X7_MBZ_CNT (4)
-#define FFA_X4X7_MBZ_REG_START (&res->a4)
-
-/* x3-x7 MBZ */
-#define FFA_X3X7_MBZ_CNT (5)
-#define FFA_X3_MBZ_REG_START (&res->a3)
-
-/* number of emulated FF-A secure partitions (SPs) */
-#define SANDBOX_PARTITIONS_CNT (4)
-
-/* Binary data of the emulated services UUIDs */
-
-/* service 1 UUID binary data (little-endian format) */
-#define SANDBOX_SERVICE1_UUID_A1 0xed32d533
-#define SANDBOX_SERVICE1_UUID_A2 0x99e64209
-#define SANDBOX_SERVICE1_UUID_A3 0x9cc02d72
-#define SANDBOX_SERVICE1_UUID_A4 0xcdd998a7
-
-/* service 2 UUID binary data (little-endian format) */
-#define SANDBOX_SERVICE2_UUID_A1 0xed32d544
-#define SANDBOX_SERVICE2_UUID_A2 0x99e64209
-#define SANDBOX_SERVICE2_UUID_A3 0x9cc02d72
-#define SANDBOX_SERVICE2_UUID_A4 0xcdd998a7
-
-/**
- * struct ffa_rxtxpair_info - structure hosting the RX/TX buffers flags
- * @rxbuf_owned: RX buffer ownership flag (the owner is non secure world)
- * @rxbuf_mapped: RX buffer mapping flag
- * @txbuf_owned TX buffer ownership flag
- * @txbuf_mapped: TX buffer mapping flag
- * @rxtx_buf_size: RX/TX buffers size
- *
- * Hosts the ownership/mapping flags of the RX/TX buffers
- * When a buffer is owned/mapped its corresponding flag is set to 1 otherwise 0.
- */
-struct ffa_rxtxpair_info {
- u8 rxbuf_owned;
- u8 rxbuf_mapped;
- u8 txbuf_owned;
- u8 txbuf_mapped;
- u32 rxtx_buf_size;
-};
-
-/**
- * struct sandbox_ffa_emul - emulator data
- *
- * @fwk_version: FF-A framework version
- * @id: u-boot endpoint ID
- * @partitions: The partitions descriptors structure
- * @pair: The RX/TX buffers pair
- * @pair_info: The RX/TX buffers pair flags and size
- * @test_ffa_data: The data of the FF-A bus under test
- *
- * Hosts all the emulated secure world data.
- */
-struct sandbox_ffa_emul {
- u32 fwk_version;
- u16 id;
- struct ffa_partitions partitions;
- struct ffa_rxtxpair pair;
- struct ffa_rxtxpair_info pair_info;
-};
-
-/**
- * ffa_emul_find() - Finds the FF-A emulator
- * @dev: the sandbox FF-A device (sandbox-arm-ffa)
- * @emulp: the FF-A emulator device (sandbox-ffa-emul)
- * Return:
- * 0 on success. Otherwise, failure
- */
-int ffa_emul_find(struct udevice *dev, struct udevice **emulp);
-
-#endif
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"
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
+++ /dev/null
-// 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 <arm_ffa.h>
-#include <command.h>
-#include <dm.h>
-#include <mapmem.h>
-#include <stdlib.h>
-#include <asm/io.h>
-
-/* 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 <partition UUID>\n"
- " - lists the partition(s) info\n"
- "ping <partition ID>\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));
CONFIG_EFI_IGNORE_OSINDICATIONS=y
CONFIG_FWU_MULTI_BANK_UPDATE=y
CONFIG_ERRNO_STR=y
-CONFIG_EFI_MM_COMM_TEE=y
-CONFIG_FFA_SHARED_MM_BUF_SIZE=4096
-CONFIG_FFA_SHARED_MM_BUF_OFFSET=0
-CONFIG_FFA_SHARED_MM_BUF_ADDR=0x02000000
CONFIG_UNIT_TEST=y
CONFIG_UT_TIME=y
CONFIG_UT_DM=y
-CONFIG_ARM_FFA_TRANSPORT=y
CONFIG_UNIT_TEST=y
CONFIG_UT_TIME=y
CONFIG_UT_DM=y
-CONFIG_ARM_FFA_TRANSPORT=y
+++ /dev/null
-.. SPDX-License-Identifier: GPL-2.0+
-
-Arm FF-A Support
-================
-
-Summary
--------
-
-FF-A stands for Firmware Framework for Arm A-profile processors.
-
-FF-A specifies interfaces that enable a pair of software execution environments aka partitions to
-communicate with each other. A partition could be a VM in the Normal or Secure world, an
-application in S-EL0, or a Trusted OS in S-EL1.
-
-The U-Boot FF-A support (the bus) implements the interfaces to communicate
-with partitions in the Secure world aka Secure partitions (SPs).
-
-The FF-A support specifically focuses on communicating with SPs that
-isolate portions of EFI runtime services that must run in a protected
-environment which is inaccessible by the Host OS or Hypervisor.
-Examples of such services are set/get variables.
-
-The FF-A support uses the SMC ABIs defined by the FF-A specification to:
-
-- Discover the presence of SPs of interest
-- Access an SP's service through communication protocols
- e.g. EFI MM communication protocol
-
-At this stage of development only EFI boot-time services are supported.
-Runtime support will be added in future developments.
-
-The U-Boot FF-A support provides the following parts:
-
-- A Uclass driver providing generic FF-A methods.
-- An Arm FF-A device driver providing Arm-specific methods and reusing the Uclass methods.
-- A sandbox emulator for Arm FF-A, emulates the FF-A side of the Secure World and provides
- FF-A ABIs inspection methods.
-- An FF-A sandbox device driver for FF-A communication with the emulated Secure World.
- The driver leverages the FF-A Uclass to establish FF-A communication.
-- Sandbox FF-A test cases.
-
-FF-A and SMC specifications
--------------------------------------------
-
-The current implementation of the U-Boot FF-A support relies on
-`FF-A v1.0 specification`_ and uses SMC32 calling convention which
-means using the first 32-bit data of the Xn registers.
-
-At this stage we only need the FF-A v1.0 features.
-
-The FF-A support has been tested with OP-TEE which supports SMC32 calling
-convention.
-
-Hypervisors are supported if they are configured to trap SMC calls.
-
-The FF-A support uses 64-bit registers as per `SMC Calling Convention v1.2 specification`_.
-
-Supported hardware
---------------------------------
-
-Aarch64 plaforms
-
-Configuration
-----------------------
-
-CONFIG_ARM_FFA_TRANSPORT
- Enables the FF-A support. Turn this on if you want to use FF-A
- communication.
- When using an Arm 64-bit platform, the Arm FF-A driver will be used.
- When using sandbox, the sandbox FF-A emulator and FF-A sandbox driver will be used.
-
-FF-A ABIs under the hood
----------------------------------------
-
-Invoking an FF-A ABI involves providing to the secure world/hypervisor the
-expected arguments from the ABI.
-
-On an Arm 64-bit platform, the ABI arguments are stored in x0 to x7 registers.
-Then, an SMC instruction is executed.
-
-At the secure side level or hypervisor the ABI is handled at a higher exception
-level and the arguments are read and processed.
-
-The response is put back through x0 to x7 registers and control is given back
-to the U-Boot Arm FF-A driver (non-secure world).
-
-The driver reads the response and processes it accordingly.
-
-This methodology applies to all the FF-A ABIs.
-
-FF-A bus discovery on Arm 64-bit platforms
----------------------------------------------
-
-When CONFIG_ARM_FFA_TRANSPORT is enabled, the FF-A bus is considered as
-an architecture feature and discovered using ARM_SMCCC_FEATURES mechanism.
-This discovery mechanism is performed by the PSCI driver.
-
-The PSCI driver comes with a PSCI device tree node which is the root node for all
-architecture features including FF-A bus.
-
-::
-
- => dm tree
-
- Class Index Probed Driver Name
- -----------------------------------------------------------
- firmware 0 [ + ] psci |-- psci
- ffa 0 [ ] arm_ffa | `-- arm_ffa
-
-The PSCI driver is bound to the PSCI device and when probed it tries to discover
-the architecture features by calling a callback the features drivers provide.
-
-In case of FF-A, the callback is arm_ffa_is_supported() which tries to discover the
-FF-A framework by querying the FF-A framework version from secure world using
-FFA_VERSION ABI. When discovery is successful, the ARM_SMCCC_FEATURES
-mechanism creates a U-Boot device for the FF-A bus and binds the Arm FF-A driver
-with the device using device_bind_driver().
-
-At this stage the FF-A bus is registered with the DM and can be interacted with using
-the DM APIs.
-
-Clients are able to probe then use the FF-A bus by calling uclass_first_device().
-Please refer to the armffa command implementation as an example of how to probe
-and interact with the FF-A bus.
-
-When calling uclass_first_device(), the FF-A driver is probed and ends up calling
-ffa_do_probe() provided by the Uclass which does the following:
-
- - saving the FF-A framework version in uc_priv
- - querying from secure world the u-boot endpoint ID
- - querying from secure world the supported features of FFA_RXTX_MAP
- - mapping the RX/TX buffers
- - querying from secure world all the partitions information
-
-When one of the above actions fails, probing fails and the driver stays not active
-and can be probed again if needed.
-
-Requirements for clients
--------------------------------------
-
-When using the FF-A bus with EFI, clients must query the SPs they are looking for
-during EFI boot-time mode using the service UUID.
-
-The RX/TX buffers are only available at EFI boot-time. Querying partitions is
-done at boot time and data is cached for future use.
-
-RX/TX buffers should be unmapped before EFI runtime mode starts.
-The driver provides a bus operation for that called ffa_rxtx_unmap().
-
-The user should call ffa_rxtx_unmap() to unmap the RX/TX buffers when required
-(e.g: at efi_exit_boot_services()).
-
-The Linux kernel allocates its own RX/TX buffers. To be able to register these kernel buffers
-with secure world, the U-Boot's RX/TX buffers should be unmapped before EFI runtime starts.
-
-When invoking FF-A direct messaging, clients should specify which ABI protocol
-they want to use (32-bit vs 64-bit). Selecting the protocol means using
-the 32-bit or 64-bit version of FFA_MSG_SEND_DIRECT_{REQ, RESP}.
-The calling convention between U-Boot and the secure world stays the same: SMC32.
-
-Requirements for user drivers
--------------------------------------
-
-Users who want to implement their custom FF-A device driver while reusing the FF-A Uclass can do so
-by implementing their own invoke_ffa_fn() in the user driver.
-
-The bus driver layer
-------------------------------
-
-FF-A support comes on top of the SMCCC layer and is implemented by the FF-A Uclass drivers/firmware/arm-ffa/arm-ffa-uclass.c
-
-The following features are provided:
-
-- Support for the 32-bit version of the following ABIs:
-
- - FFA_VERSION
- - FFA_ID_GET
- - FFA_FEATURES
- - FFA_PARTITION_INFO_GET
- - FFA_RXTX_UNMAP
- - FFA_RX_RELEASE
- - FFA_RUN
- - FFA_ERROR
- - FFA_SUCCESS
- - FFA_INTERRUPT
- - FFA_MSG_SEND_DIRECT_REQ
- - FFA_MSG_SEND_DIRECT_RESP
-
-- Support for the 64-bit version of the following ABIs:
-
- - FFA_RXTX_MAP
- - FFA_MSG_SEND_DIRECT_REQ
- - FFA_MSG_SEND_DIRECT_RESP
-
-- Processing the received data from the secure world/hypervisor and caching it
-
-- Hiding from upper layers the FF-A protocol and registers details. Upper
- layers focus on exchanged data, FF-A support takes care of how to transport
- that to the secure world/hypervisor using FF-A
-
-- FF-A support provides driver operations to be used by upper layers:
-
- - ffa_partition_info_get
- - ffa_sync_send_receive
- - ffa_rxtx_unmap
-
-- FF-A bus discovery makes sure FF-A framework is responsive and compatible
- with the driver
-
-- FF-A bus can be compiled and used without EFI
-
-Relationship between the sandbox emulator and the FF-A device
----------------------------------------------------------------
-
-::
-
- => dm tree
-
- Class Index Probed Driver Name
- -----------------------------------------------------------
- ffa_emul 0 [ + ] sandbox_ffa_emul `-- arm-ffa-emul
- ffa 0 [ ] sandbox_arm_ffa `-- sandbox-arm-ffa
-
-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
---------------------------------------
-
-For example, when using FF-A with Corstone-1000 the logs are as follows:
-
-::
-
- U-Boot 2023.01 (May 10 2023 - 11:08:07 +0000) corstone1000 aarch64
-
- DRAM: 2 GiB
- Arm FF-A framework discovery
- FF-A driver 1.0
- FF-A framework 1.0
- FF-A versions are compatible
- ...
- FF-A driver 1.0
- FF-A framework 1.0
- FF-A versions are compatible
- EFI: MM partition ID 0x8003
- ...
- EFI stub: Booting Linux Kernel...
- ...
- Linux version 6.1.9-yocto-standard (oe-user@oe-host) (aarch64-poky-linux-musl-gcc (GCC) 12.2.0, GNU ld (GNU Binutils) 2.40.202301193
- Machine model: ARM Corstone1000 FPGA MPS3 board
-
-Contributors
-------------
- * Abdellatif El Khlifi <abdellatif.elkhlifi@arm.com>
-
-.. _`FF-A v1.0 specification`: https://documentation-service.arm.com/static/5fb7e8a6ca04df4095c1d65e
-.. _`SMC Calling Convention v1.2 specification`: https://documentation-service.arm.com/static/5f8edaeff86e16515cdbe4c6
arc
arm64
- arm64.ffa
m68k
mips
nios2
U-Boot sandbox supports these emulations:
-- Arm FF-A
- Block devices
- Chrome OS EC
- GPIO
+++ /dev/null
-.. SPDX-License-Identifier: GPL-2.0+:
-
-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 $? is 0 (true) on success, 1 (false) on failure.
cmd/acpi
cmd/addrmap
- cmd/armffa
cmd/askenv
cmd/base
cmd/bdinfo
obj-y += smem/
obj-y += thermal/
obj-$(CONFIG_TEE) += tee/
-obj-$(CONFIG_ARM_FFA_TRANSPORT) += firmware/arm-ffa/
obj-y += axi/
obj-y += ufs/
obj-$(CONFIG_W1) += w1/
the PSCI driver is always probed and binds dirvers registered to the Arm SMCCC
services if any and reported as supported by the SMCCC firmware.
-source "drivers/firmware/arm-ffa/Kconfig"
source "drivers/firmware/scmi/Kconfig"
+++ /dev/null
-# SPDX-License-Identifier: GPL-2.0
-
-config ARM_FFA_TRANSPORT
- bool "Enable Arm Firmware Framework for Armv8-A driver"
- depends on DM && (ARM64 || SANDBOX)
- select ARM_SMCCC if !SANDBOX
- select ARM_SMCCC_FEATURES if !SANDBOX
- imply CMD_ARMFFA
- select LIB_UUID
- select DEVRES
- help
- The Firmware Framework for Arm A-profile processors (FF-A)
- describes interfaces (ABIs) that standardize communication
- between the Secure World and Normal World leveraging TrustZone
- technology.
-
- The FF-A support in U-Boot is based on FF-A specification v1.0 and uses SMC32
- calling convention.
-
- FF-A specification:
-
- https://developer.arm.com/documentation/den0077/a/?lang=en
-
- In U-Boot FF-A design, FF-A is considered as a discoverable bus.
- FF-A bus is discovered using ARM_SMCCC_FEATURES mechanism performed
- by the PSCI driver.
- The Secure World is considered as one entity to communicate with
- using the FF-A bus.
- FF-A communication is handled by one device and one instance (the bus).
- The FF-A support on U-Boot takes care of all the interactions between Normal
- world and Secure World.
-
- Generic FF-A methods are implemented in the Uclass (arm-ffa-uclass.c).
- Arm specific methods are implemented in the Arm driver (arm-ffa.c).
-
- FF-A sandbox is provided to run FF-A under sandbox and allows to test the FF-A Uclass.
- Sandbox support includes an emulator for Arm FF-A which emulates the FF-A side of
- the Secure World and provides FF-A ABIs inspection methods (ffa-emul-uclass.c).
- An FF-A sandbox driver is also provided for FF-A communication with the emulated
- Secure World (sandbox_ffa.c).
-
- For more details about the FF-A support, please refer to doc/arch/arm64.ffa.rst
+++ /dev/null
-# 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>
-
-# build the generic FF-A methods
-obj-y += arm-ffa-uclass.o
-ifeq ($(CONFIG_SANDBOX),y)
-# build the FF-A sandbox emulator and driver
-obj-y += ffa-emul-uclass.o sandbox_ffa.o
-else
-# build the Arm64 FF-A driver
-obj-y += arm-ffa.o
-endif
+++ /dev/null
-// 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 <arm_ffa.h>
-#include <arm_ffa_priv.h>
-#include <dm.h>
-#include <log.h>
-#include <malloc.h>
-#include <string.h>
-#include <uuid.h>
-#include <asm/global_data.h>
-#include <dm/device-internal.h>
-#include <dm/devres.h>
-#include <dm/root.h>
-#include <linux/errno.h>
-#include <linux/sizes.h>
-
-DECLARE_GLOBAL_DATA_PTR;
-
-/* Error mapping declarations */
-
-int ffa_to_std_errmap[MAX_NUMBER_FFA_ERR] = {
- [NOT_SUPPORTED] = -EOPNOTSUPP,
- [INVALID_PARAMETERS] = -EINVAL,
- [NO_MEMORY] = -ENOMEM,
- [BUSY] = -EBUSY,
- [INTERRUPTED] = -EINTR,
- [DENIED] = -EACCES,
- [RETRY] = -EAGAIN,
- [ABORTED] = -ECANCELED,
-};
-
-static struct ffa_abi_errmap err_msg_map[FFA_ERRMAP_COUNT] = {
- [FFA_ID_TO_ERRMAP_ID(FFA_VERSION)] = {
- {
- [NOT_SUPPORTED] =
- "NOT_SUPPORTED: A Firmware Framework implementation does not exist",
- },
- },
- [FFA_ID_TO_ERRMAP_ID(FFA_ID_GET)] = {
- {
- [NOT_SUPPORTED] =
- "NOT_SUPPORTED: This function is not implemented at this FF-A instance",
- },
- },
- [FFA_ID_TO_ERRMAP_ID(FFA_FEATURES)] = {
- {
- [NOT_SUPPORTED] =
- "NOT_SUPPORTED: FFA_RXTX_MAP is not implemented at this FF-A instance",
- },
- },
- [FFA_ID_TO_ERRMAP_ID(FFA_PARTITION_INFO_GET)] = {
- {
- [NOT_SUPPORTED] =
- "NOT_SUPPORTED: This function is not implemented at this FF-A instance",
- [INVALID_PARAMETERS] =
- "INVALID_PARAMETERS: Unrecognized UUID",
- [NO_MEMORY] =
- "NO_MEMORY: Results cannot fit in RX buffer of the caller",
- [BUSY] =
- "BUSY: RX buffer of the caller is not free",
- [DENIED] =
- "DENIED: Callee is not in a state to handle this request",
- },
- },
- [FFA_ID_TO_ERRMAP_ID(FFA_RXTX_UNMAP)] = {
- {
- [NOT_SUPPORTED] =
- "NOT_SUPPORTED: FFA_RXTX_UNMAP is not implemented at this FF-A instance",
- [INVALID_PARAMETERS] =
- "INVALID_PARAMETERS: No buffer pair registered on behalf of the caller",
- },
- },
- [FFA_ID_TO_ERRMAP_ID(FFA_RX_RELEASE)] = {
- {
- [NOT_SUPPORTED] =
- "NOT_SUPPORTED: FFA_RX_RELEASE is not implemented at this FF-A instance",
- [DENIED] =
- "DENIED: Caller did not have ownership of the RX buffer",
- },
- },
- [FFA_ID_TO_ERRMAP_ID(FFA_RXTX_MAP)] = {
- {
- [NOT_SUPPORTED] =
- "NOT_SUPPORTED: This function is not implemented at this FF-A instance",
- [INVALID_PARAMETERS] =
- "INVALID_PARAMETERS: Field(s) in input parameters incorrectly encoded",
- [NO_MEMORY] =
- "NO_MEMORY: Not enough memory",
- [DENIED] =
- "DENIED: Buffer pair already registered",
- },
- },
-};
-
-/**
- * ffa_to_std_errno() - convert FF-A error code to standard error code
- * @ffa_errno: Error code returned by the FF-A ABI
- *
- * Map the given FF-A error code as specified
- * by the spec to a u-boot standard error code.
- *
- * Return:
- *
- * The standard error code on success. . Otherwise, failure
- */
-static int ffa_to_std_errno(int ffa_errno)
-{
- int err_idx = -ffa_errno;
-
- /* Map the FF-A error code to the standard u-boot error code */
- if (err_idx > 0 && err_idx < MAX_NUMBER_FFA_ERR)
- return ffa_to_std_errmap[err_idx];
- return -EINVAL;
-}
-
-/**
- * ffa_print_error_log() - print the error log corresponding to the selected FF-A ABI
- * @ffa_id: FF-A ABI ID
- * @ffa_errno: Error code returned by the FF-A ABI
- *
- * Map the FF-A error code to the error log relevant to the
- * selected FF-A ABI. Then the error log is printed.
- *
- * Return:
- *
- * 0 on success. . Otherwise, failure
- */
-static int ffa_print_error_log(u32 ffa_id, int ffa_errno)
-{
- int err_idx = -ffa_errno, abi_idx = 0;
-
- /* Map the FF-A error code to the corresponding error log */
-
- if (err_idx <= 0 || err_idx >= MAX_NUMBER_FFA_ERR)
- return -EINVAL;
-
- if (ffa_id < FFA_FIRST_ID || ffa_id > FFA_LAST_ID)
- return -EINVAL;
-
- abi_idx = FFA_ID_TO_ERRMAP_ID(ffa_id);
- if (abi_idx < 0 || abi_idx >= FFA_ERRMAP_COUNT)
- return -EINVAL;
-
- if (!err_msg_map[abi_idx].err_str[err_idx])
- return -EINVAL;
-
- log_err("%s\n", err_msg_map[abi_idx].err_str[err_idx]);
-
- return 0;
-}
-
-/* FF-A ABIs implementation (U-Boot side) */
-
-/**
- * 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 low level SMC implementation.
- * This function should be implemented by the user driver.
- */
-void __weak invoke_ffa_fn(ffa_value_t args, ffa_value_t *res)
-{
-}
-
-/**
- * ffa_get_version_hdlr() - FFA_VERSION handler function
- * @dev: The FF-A bus device
- *
- * Implement FFA_VERSION FF-A function
- * to get from the secure world the FF-A framework version
- * FFA_VERSION is used to discover the FF-A framework.
- *
- * Return:
- *
- * 0 on success. Otherwise, failure
- */
-int ffa_get_version_hdlr(struct udevice *dev)
-{
- u16 major, minor;
- ffa_value_t res = {0};
- int ffa_errno;
- struct ffa_priv *uc_priv;
-
- invoke_ffa_fn((ffa_value_t){
- .a0 = FFA_SMC_32(FFA_VERSION), .a1 = FFA_VERSION_1_0,
- }, &res);
-
- ffa_errno = res.a0;
- if (ffa_errno < 0) {
- ffa_print_error_log(FFA_VERSION, ffa_errno);
- return ffa_to_std_errno(ffa_errno);
- }
-
- major = GET_FFA_MAJOR_VERSION(res.a0);
- minor = GET_FFA_MINOR_VERSION(res.a0);
-
- log_info("FF-A driver %d.%d\nFF-A framework %d.%d\n",
- FFA_MAJOR_VERSION, FFA_MINOR_VERSION, major, minor);
-
- if (major == FFA_MAJOR_VERSION && minor >= FFA_MINOR_VERSION) {
- log_info("FF-A versions are compatible\n");
-
- if (dev) {
- uc_priv = dev_get_uclass_priv(dev);
- if (uc_priv)
- uc_priv->fwk_version = res.a0;
- }
-
- return 0;
- }
-
- log_err("versions are incompatible\nExpected: %d.%d , Found: %d.%d\n",
- FFA_MAJOR_VERSION, FFA_MINOR_VERSION, major, minor);
-
- return -EPROTONOSUPPORT;
-}
-
-/**
- * ffa_get_endpoint_id() - FFA_ID_GET handler function
- * @dev: The FF-A bus device
- *
- * Implement FFA_ID_GET FF-A function
- * to get from the secure world u-boot endpoint ID
- *
- * Return:
- *
- * 0 on success. Otherwise, failure
- */
-static int ffa_get_endpoint_id(struct udevice *dev)
-{
- ffa_value_t res = {0};
- int ffa_errno;
- struct ffa_priv *uc_priv = dev_get_uclass_priv(dev);
-
- invoke_ffa_fn((ffa_value_t){
- .a0 = FFA_SMC_32(FFA_ID_GET),
- }, &res);
-
- if (res.a0 == FFA_SMC_32(FFA_SUCCESS)) {
- uc_priv->id = GET_SELF_ENDPOINT_ID((u32)res.a2);
- log_debug("FF-A endpoint ID is %u\n", uc_priv->id);
-
- return 0;
- }
-
- ffa_errno = res.a2;
-
- ffa_print_error_log(FFA_ID_GET, ffa_errno);
-
- return ffa_to_std_errno(ffa_errno);
-}
-
-/**
- * ffa_set_rxtx_buffers_pages_cnt() - set the minimum number of pages in each of the RX/TX buffers
- * @dev: The FF-A bus device
- * @prop_field: properties field obtained from FFA_FEATURES ABI
- *
- * Set the minimum number of pages in each of the RX/TX buffers in uc_priv
- *
- * Return:
- *
- * rxtx_min_pages field contains the returned number of pages
- * 0 on success. Otherwise, failure
- */
-static int ffa_set_rxtx_buffers_pages_cnt(struct udevice *dev, u32 prop_field)
-{
- struct ffa_priv *uc_priv = dev_get_uclass_priv(dev);
-
- switch (prop_field) {
- case RXTX_4K:
- uc_priv->pair.rxtx_min_pages = 1;
- break;
- case RXTX_16K:
- uc_priv->pair.rxtx_min_pages = 4;
- break;
- case RXTX_64K:
- uc_priv->pair.rxtx_min_pages = 16;
- break;
- default:
- log_err("RX/TX buffer size not supported\n");
- return -EINVAL;
- }
-
- return 0;
-}
-
-/**
- * ffa_get_rxtx_map_features_hdlr() - FFA_FEATURES handler function with FFA_RXTX_MAP argument
- * @dev: The FF-A bus device
- *
- * Implement FFA_FEATURES FF-A function to retrieve the FFA_RXTX_MAP features
- *
- * Return:
- *
- * 0 on success. Otherwise, failure
- */
-static int ffa_get_rxtx_map_features_hdlr(struct udevice *dev)
-{
- ffa_value_t res = {0};
- int ffa_errno;
-
- invoke_ffa_fn((ffa_value_t){
- .a0 = FFA_SMC_32(FFA_FEATURES),
- .a1 = FFA_SMC_64(FFA_RXTX_MAP),
- }, &res);
-
- if (res.a0 == FFA_SMC_32(FFA_SUCCESS))
- return ffa_set_rxtx_buffers_pages_cnt(dev, res.a2);
-
- ffa_errno = res.a2;
- ffa_print_error_log(FFA_FEATURES, ffa_errno);
-
- return ffa_to_std_errno(ffa_errno);
-}
-
-/**
- * ffa_free_rxtx_buffers() - free the RX/TX buffers
- * @dev: The FF-A bus device
- *
- * Free the RX/TX buffers
- */
-static void ffa_free_rxtx_buffers(struct udevice *dev)
-{
- struct ffa_priv *uc_priv = dev_get_uclass_priv(dev);
-
- log_debug("Freeing FF-A RX/TX buffers\n");
-
- if (uc_priv->pair.rxbuf) {
- free(uc_priv->pair.rxbuf);
- uc_priv->pair.rxbuf = NULL;
- }
-
- if (uc_priv->pair.txbuf) {
- free(uc_priv->pair.txbuf);
- uc_priv->pair.txbuf = NULL;
- }
-}
-
-/**
- * ffa_alloc_rxtx_buffers() - allocate the RX/TX buffers
- * @dev: The FF-A bus device
- *
- * Used by ffa_map_rxtx_buffers to allocate
- * the RX/TX buffers before mapping them. The allocated memory is physically
- * contiguous since memalign ends up calling malloc which allocates
- * contiguous memory in u-boot.
- * The size of the memory allocated is the minimum allowed.
- *
- * Return:
- *
- * 0 on success. Otherwise, failure
- */
-static int ffa_alloc_rxtx_buffers(struct udevice *dev)
-{
- u64 bytes;
- struct ffa_priv *uc_priv = dev_get_uclass_priv(dev);
-
- log_debug("Using %lu 4KB page(s) for FF-A RX/TX buffers size\n",
- uc_priv->pair.rxtx_min_pages);
-
- bytes = uc_priv->pair.rxtx_min_pages * SZ_4K;
-
- /*
- * The alignment of the RX and TX buffers must be equal
- * to the larger translation granule size
- * Assumption: Memory allocated with memalign is always physically contiguous
- */
-
- uc_priv->pair.rxbuf = memalign(bytes, bytes);
- if (!uc_priv->pair.rxbuf) {
- log_err("failure to allocate RX buffer\n");
- return -ENOBUFS;
- }
-
- log_debug("FF-A RX buffer at virtual address %p\n", uc_priv->pair.rxbuf);
-
- uc_priv->pair.txbuf = memalign(bytes, bytes);
- if (!uc_priv->pair.txbuf) {
- free(uc_priv->pair.rxbuf);
- uc_priv->pair.rxbuf = NULL;
- log_err("failure to allocate the TX buffer\n");
- return -ENOBUFS;
- }
-
- log_debug("FF-A TX buffer at virtual address %p\n", uc_priv->pair.txbuf);
-
- /* Make sure the buffers are cleared before use */
- memset(uc_priv->pair.rxbuf, 0, bytes);
- memset(uc_priv->pair.txbuf, 0, bytes);
-
- return 0;
-}
-
-/**
- * ffa_map_rxtx_buffers_hdlr() - FFA_RXTX_MAP handler function
- * @dev: The FF-A bus device
- *
- * Implement FFA_RXTX_MAP FF-A function to map the RX/TX buffers
- *
- * Return:
- *
- * 0 on success. Otherwise, failure
- */
-static int ffa_map_rxtx_buffers_hdlr(struct udevice *dev)
-{
- int ret;
- ffa_value_t res = {0};
- int ffa_errno;
- struct ffa_priv *uc_priv = dev_get_uclass_priv(dev);
-
- ret = ffa_alloc_rxtx_buffers(dev);
- if (ret)
- return ret;
-
- /*
- * we need to pass the physical addresses of the RX/TX buffers
- * in u-boot physical/virtual mapping is 1:1
- * no need to convert from virtual to physical
- */
-
- invoke_ffa_fn((ffa_value_t){
- .a0 = FFA_SMC_64(FFA_RXTX_MAP),
- .a1 = map_to_sysmem(uc_priv->pair.txbuf),
- .a2 = map_to_sysmem(uc_priv->pair.rxbuf),
- .a3 = uc_priv->pair.rxtx_min_pages,
- }, &res);
-
- if (res.a0 == FFA_SMC_32(FFA_SUCCESS)) {
- log_debug("FF-A RX/TX buffers mapped\n");
- return 0;
- }
-
- ffa_errno = res.a2;
- ffa_print_error_log(FFA_RXTX_MAP, ffa_errno);
-
- ffa_free_rxtx_buffers(dev);
-
- return ffa_to_std_errno(ffa_errno);
-}
-
-/**
- * ffa_unmap_rxtx_buffers_hdlr() - FFA_RXTX_UNMAP handler function
- * @dev: The FF-A bus device
- *
- * Implement FFA_RXTX_UNMAP FF-A function to unmap the RX/TX buffers
- *
- * Return:
- *
- * 0 on success. Otherwise, failure
- */
-int ffa_unmap_rxtx_buffers_hdlr(struct udevice *dev)
-{
- ffa_value_t res = {0};
- int ffa_errno;
- struct ffa_priv *uc_priv;
-
- log_debug("unmapping FF-A RX/TX buffers\n");
-
- uc_priv = dev_get_uclass_priv(dev);
-
- invoke_ffa_fn((ffa_value_t){
- .a0 = FFA_SMC_32(FFA_RXTX_UNMAP),
- .a1 = PREP_SELF_ENDPOINT_ID(uc_priv->id),
- }, &res);
-
- if (res.a0 == FFA_SMC_32(FFA_SUCCESS)) {
- ffa_free_rxtx_buffers(dev);
- return 0;
- }
-
- ffa_errno = res.a2;
- ffa_print_error_log(FFA_RXTX_UNMAP, ffa_errno);
-
- return ffa_to_std_errno(ffa_errno);
-}
-
-/**
- * ffa_release_rx_buffer_hdlr() - FFA_RX_RELEASE handler function
- * @dev: The FF-A bus device
- *
- * Invoke FFA_RX_RELEASE FF-A function to release the ownership of the RX buffer
- *
- * Return:
- *
- * 0 on success. Otherwise, failure
- */
-static int ffa_release_rx_buffer_hdlr(struct udevice *dev)
-{
- ffa_value_t res = {0};
- int ffa_errno;
-
- invoke_ffa_fn((ffa_value_t){
- .a0 = FFA_SMC_32(FFA_RX_RELEASE),
- }, &res);
-
- if (res.a0 == FFA_SMC_32(FFA_SUCCESS))
- return 0;
-
- ffa_errno = res.a2;
- ffa_print_error_log(FFA_RX_RELEASE, ffa_errno);
-
- return ffa_to_std_errno(ffa_errno);
-}
-
-/**
- * ffa_uuid_are_identical() - check whether two given UUIDs are identical
- * @uuid1: first UUID
- * @uuid2: second UUID
- *
- * Used by ffa_read_partitions_info to search for a UUID in the partitions descriptors table
- *
- * Return:
- *
- * 1 when UUIDs match. Otherwise, 0
- */
-static bool ffa_uuid_are_identical(const struct ffa_partition_uuid *uuid1,
- const struct ffa_partition_uuid *uuid2)
-{
- if (!uuid1 || !uuid2)
- return 0;
-
- return !memcmp(uuid1, uuid2, sizeof(struct ffa_partition_uuid));
-}
-
-/**
- * ffa_read_partitions_info() - read queried partition data
- * @dev: The FF-A bus device
- * @count: The number of partitions queried
- * @part_uuid: Pointer to the partition(s) UUID
- *
- * Read the partitions information returned by the FFA_PARTITION_INFO_GET and saves it in uc_priv
- *
- * Return:
- *
- * uc_priv is updated with the partition(s) information
- * 0 is returned on success. Otherwise, failure
- */
-static int ffa_read_partitions_info(struct udevice *dev, u32 count,
- struct ffa_partition_uuid *part_uuid)
-{
- struct ffa_priv *uc_priv = dev_get_uclass_priv(dev);
-
- if (!count) {
- log_err("no partition detected\n");
- return -ENODATA;
- }
-
- log_debug("Reading FF-A partitions data from the RX buffer\n");
-
- if (!part_uuid) {
- /* Querying information of all partitions */
- u64 buf_bytes;
- u64 data_bytes;
- u32 desc_idx;
- struct ffa_partition_info *parts_info;
-
- data_bytes = count * sizeof(struct ffa_partition_desc);
-
- buf_bytes = uc_priv->pair.rxtx_min_pages * SZ_4K;
-
- if (data_bytes > buf_bytes) {
- log_err("partitions data size exceeds the RX buffer size:\n");
- log_err(" sizes in bytes: data %llu , RX buffer %llu\n",
- data_bytes,
- buf_bytes);
-
- return -ENOMEM;
- }
-
- uc_priv->partitions.descs = devm_kmalloc(dev, data_bytes, __GFP_ZERO);
- if (!uc_priv->partitions.descs) {
- log_err("cannot allocate partitions data buffer\n");
- return -ENOMEM;
- }
-
- parts_info = uc_priv->pair.rxbuf;
-
- for (desc_idx = 0 ; desc_idx < count ; desc_idx++) {
- uc_priv->partitions.descs[desc_idx].info =
- parts_info[desc_idx];
-
- log_debug("FF-A partition ID %x : info cached\n",
- uc_priv->partitions.descs[desc_idx].info.id);
- }
-
- uc_priv->partitions.count = count;
-
- log_debug("%d FF-A partition(s) found and cached\n", count);
-
- } else {
- u32 rx_desc_idx, cached_desc_idx;
- struct ffa_partition_info *parts_info;
- u8 desc_found;
-
- parts_info = uc_priv->pair.rxbuf;
-
- /*
- * Search for the SP IDs read from the RX buffer
- * in the already cached SPs.
- * Update the UUID when ID found.
- */
- for (rx_desc_idx = 0; rx_desc_idx < count ; rx_desc_idx++) {
- desc_found = 0;
-
- /* Search the current ID in the cached partitions */
- for (cached_desc_idx = 0;
- cached_desc_idx < uc_priv->partitions.count;
- cached_desc_idx++) {
- /* Save the UUID */
- if (uc_priv->partitions.descs[cached_desc_idx].info.id ==
- parts_info[rx_desc_idx].id) {
- uc_priv->partitions.descs[cached_desc_idx].sp_uuid =
- *part_uuid;
-
- desc_found = 1;
- break;
- }
- }
-
- if (!desc_found)
- return -ENODATA;
- }
- }
-
- return 0;
-}
-
-/**
- * ffa_query_partitions_info() - invoke FFA_PARTITION_INFO_GET and save partitions data
- * @dev: The FF-A bus device
- * @part_uuid: Pointer to the partition(s) UUID
- * @pcount: Pointer to the number of partitions variable filled when querying
- *
- * Execute the FFA_PARTITION_INFO_GET to query the partitions data.
- * Then, call ffa_read_partitions_info to save the data in uc_priv.
- *
- * After reading the data the RX buffer is released using ffa_release_rx_buffer
- *
- * Return:
- *
- * When part_uuid is NULL, all partitions data are retrieved from secure world
- * When part_uuid is non NULL, data for partitions matching the given UUID are
- * retrieved and the number of partitions is returned
- * 0 is returned on success. Otherwise, failure
- */
-static int ffa_query_partitions_info(struct udevice *dev, struct ffa_partition_uuid *part_uuid,
- u32 *pcount)
-{
- struct ffa_partition_uuid query_uuid = {0};
- ffa_value_t res = {0};
- int ffa_errno;
-
- /*
- * If a UUID is specified. Information for one or more
- * partitions in the system is queried. Otherwise, information
- * for all installed partitions is queried
- */
-
- if (part_uuid) {
- if (!pcount)
- return -EINVAL;
-
- query_uuid = *part_uuid;
- } else if (pcount) {
- return -EINVAL;
- }
-
- invoke_ffa_fn((ffa_value_t){
- .a0 = FFA_SMC_32(FFA_PARTITION_INFO_GET),
- .a1 = query_uuid.a1,
- .a2 = query_uuid.a2,
- .a3 = query_uuid.a3,
- .a4 = query_uuid.a4,
- }, &res);
-
- if (res.a0 == FFA_SMC_32(FFA_SUCCESS)) {
- int ret;
-
- /*
- * res.a2 contains the count of partition information descriptors
- * populated in the RX buffer
- */
- if (res.a2) {
- ret = ffa_read_partitions_info(dev, (u32)res.a2, part_uuid);
- if (ret) {
- log_err("failed reading SP(s) data , err (%d)\n", ret);
- ffa_release_rx_buffer_hdlr(dev);
- return -EINVAL;
- }
- }
-
- /* Return the SP count (when querying using a UUID) */
- if (pcount)
- *pcount = (u32)res.a2;
-
- /*
- * After calling FFA_PARTITION_INFO_GET the buffer ownership
- * is assigned to the consumer (u-boot). So, we need to give
- * the ownership back to the SPM or hypervisor
- */
- ret = ffa_release_rx_buffer_hdlr(dev);
-
- return ret;
- }
-
- ffa_errno = res.a2;
- ffa_print_error_log(FFA_PARTITION_INFO_GET, ffa_errno);
-
- return ffa_to_std_errno(ffa_errno);
-}
-
-/**
- * ffa_get_partitions_info_hdlr() - FFA_PARTITION_INFO_GET handler function
- * @uuid_str: pointer to the UUID string
- * @sp_count: address of the variable containing the number of partitions matching the UUID
- * The variable is set by the driver
- * @sp_descs: address of the descriptors of the partitions matching the UUID
- * The address is set by the driver
- *
- * Return the number of partitions and their descriptors matching the UUID
- *
- * Query the secure partition data from uc_priv.
- * If not found, invoke FFA_PARTITION_INFO_GET FF-A function to query the partition information
- * from secure world.
- *
- * A client of the FF-A driver should know the UUID of the service it wants to
- * access. It should use the UUID to request the FF-A driver to provide the
- * partition(s) information of the service. The FF-A driver uses
- * PARTITION_INFO_GET to obtain this information. This is implemented through
- * ffa_get_partitions_info_hdlr() function.
- * If the partition(s) matching the UUID found, the partition(s) information and the
- * number are returned.
- * If no partition matching the UUID is found in the cached area, a new FFA_PARTITION_INFO_GET
- * call is issued.
- * If not done yet, the UUID is updated in the cached area.
- * This assumes that partitions data does not change in the secure world.
- * Otherwise u-boot will have an outdated partition data. The benefit of caching
- * the information in the FF-A driver is to accommodate discovery after
- * ExitBootServices().
- *
- * Return:
- *
- * @sp_count: the number of partitions
- * @sp_descs: address of the partitions descriptors
- *
- * On success 0 is returned. Otherwise, failure
- */
-int ffa_get_partitions_info_hdlr(struct udevice *dev, const char *uuid_str,
- u32 *sp_count, struct ffa_partition_desc **sp_descs)
-{
- u32 i;
- struct ffa_partition_uuid part_uuid = {0};
- struct ffa_priv *uc_priv;
- struct ffa_partition_desc *rx_descs;
-
- uc_priv = dev_get_uclass_priv(dev);
-
- if (!uc_priv->partitions.count || !uc_priv->partitions.descs) {
- log_err("no partition installed\n");
- return -EINVAL;
- }
-
- if (!uuid_str) {
- log_err("no UUID provided\n");
- return -EINVAL;
- }
-
- if (!sp_count) {
- log_err("no count argument provided\n");
- return -EINVAL;
- }
-
- if (!sp_descs) {
- log_err("no info argument provided\n");
- return -EINVAL;
- }
-
- if (uuid_str_to_le_bin(uuid_str, (unsigned char *)&part_uuid)) {
- log_err("invalid UUID\n");
- return -EINVAL;
- }
-
- log_debug("Searching FF-A partitions using the provided UUID\n");
-
- *sp_count = 0;
- *sp_descs = uc_priv->pair.rxbuf;
- rx_descs = *sp_descs;
-
- /* Search in the cached partitions */
- for (i = 0; i < uc_priv->partitions.count; i++)
- if (ffa_uuid_are_identical(&uc_priv->partitions.descs[i].sp_uuid,
- &part_uuid)) {
- log_debug("FF-A partition ID %x matches the provided UUID\n",
- uc_priv->partitions.descs[i].info.id);
-
- (*sp_count)++;
- *rx_descs++ = uc_priv->partitions.descs[i];
- }
-
- if (!(*sp_count)) {
- int ret;
-
- log_debug("No FF-A partition found. Querying framework ...\n");
-
- ret = ffa_query_partitions_info(dev, &part_uuid, sp_count);
-
- if (!ret) {
- log_debug("Number of FF-A partition(s) matching the UUID: %d\n", *sp_count);
-
- if (*sp_count)
- ret = ffa_get_partitions_info_hdlr(dev, uuid_str, sp_count,
- sp_descs);
- else
- ret = -ENODATA;
- }
-
- return ret;
- }
-
- return 0;
-}
-
-/**
- * ffa_cache_partitions_info() - Query and saves all secure partitions data
- * @dev: The FF-A bus device
- *
- * Invoke FFA_PARTITION_INFO_GET FF-A function to query from secure world
- * all partitions information.
- *
- * The FFA_PARTITION_INFO_GET call is issued with nil UUID as an argument.
- * All installed partitions information are returned. We cache them in uc_priv
- * and we keep the UUID field empty (in FF-A 1.0 UUID is not provided by the partition descriptor)
- *
- * Called at the device probing level.
- * ffa_cache_partitions_info uses ffa_query_partitions_info to get the data
- *
- * Return:
- *
- * 0 on success. Otherwise, failure
- */
-static int ffa_cache_partitions_info(struct udevice *dev)
-{
- return ffa_query_partitions_info(dev, NULL, NULL);
-}
-
-/**
- * ffa_msg_send_direct_req_hdlr() - FFA_MSG_SEND_DIRECT_{REQ,RESP} handler function
- * @dev: The FF-A bus device
- * @dst_part_id: destination partition ID
- * @msg: pointer to the message data preallocated by the client (in/out)
- * @is_smc64: select 64-bit or 32-bit FF-A ABI
- *
- * Implement FFA_MSG_SEND_DIRECT_{REQ,RESP}
- * FF-A functions.
- *
- * FFA_MSG_SEND_DIRECT_REQ is used to send the data to the secure partition.
- * The response from the secure partition is handled by reading the
- * FFA_MSG_SEND_DIRECT_RESP arguments.
- *
- * The maximum size of the data that can be exchanged is 40 bytes which is
- * sizeof(struct ffa_send_direct_data) as defined by the FF-A specification 1.0
- * in the section relevant to FFA_MSG_SEND_DIRECT_{REQ,RESP}
- *
- * Return:
- *
- * 0 on success. Otherwise, failure
- */
-int ffa_msg_send_direct_req_hdlr(struct udevice *dev, u16 dst_part_id,
- struct ffa_send_direct_data *msg, bool is_smc64)
-{
- ffa_value_t res = {0};
- int ffa_errno;
- u64 req_mode, resp_mode;
- struct ffa_priv *uc_priv;
-
- uc_priv = dev_get_uclass_priv(dev);
-
- /* No partition installed */
- if (!uc_priv->partitions.count || !uc_priv->partitions.descs)
- return -ENODEV;
-
- if (is_smc64) {
- req_mode = FFA_SMC_64(FFA_MSG_SEND_DIRECT_REQ);
- resp_mode = FFA_SMC_64(FFA_MSG_SEND_DIRECT_RESP);
- } else {
- req_mode = FFA_SMC_32(FFA_MSG_SEND_DIRECT_REQ);
- resp_mode = FFA_SMC_32(FFA_MSG_SEND_DIRECT_RESP);
- }
-
- invoke_ffa_fn((ffa_value_t){
- .a0 = req_mode,
- .a1 = PREP_SELF_ENDPOINT_ID(uc_priv->id) |
- PREP_PART_ENDPOINT_ID(dst_part_id),
- .a2 = 0,
- .a3 = msg->data0,
- .a4 = msg->data1,
- .a5 = msg->data2,
- .a6 = msg->data3,
- .a7 = msg->data4,
- }, &res);
-
- while (res.a0 == FFA_SMC_32(FFA_INTERRUPT))
- invoke_ffa_fn((ffa_value_t){
- .a0 = FFA_SMC_32(FFA_RUN),
- .a1 = res.a1,
- }, &res);
-
- if (res.a0 == FFA_SMC_32(FFA_SUCCESS)) {
- /* Message sent with no response */
- return 0;
- }
-
- if (res.a0 == resp_mode) {
- /* Message sent with response extract the return data */
- msg->data0 = res.a3;
- msg->data1 = res.a4;
- msg->data2 = res.a5;
- msg->data3 = res.a6;
- msg->data4 = res.a7;
-
- return 0;
- }
-
- ffa_errno = res.a2;
- return ffa_to_std_errno(ffa_errno);
-}
-
-/* FF-A driver operations (used by clients for communicating with FF-A)*/
-
-/**
- * ffa_partition_info_get() - FFA_PARTITION_INFO_GET driver operation
- * @uuid_str: pointer to the UUID string
- * @sp_count: address of the variable containing the number of partitions matching the UUID
- * The variable is set by the driver
- * @sp_descs: address of the descriptors of the partitions matching the UUID
- * The address is set by the driver
- *
- * Driver operation for FFA_PARTITION_INFO_GET.
- * Please see ffa_get_partitions_info_hdlr() description for more details.
- *
- * Return:
- *
- * @sp_count: the number of partitions
- * @sp_descs: address of the partitions descriptors
- *
- * On success 0 is returned. Otherwise, failure
- */
-int ffa_partition_info_get(struct udevice *dev, const char *uuid_str,
- u32 *sp_count, struct ffa_partition_desc **sp_descs)
-{
- struct ffa_bus_ops *ops = ffa_get_ops(dev);
-
- if (!ops->partition_info_get)
- return -ENOSYS;
-
- return ops->partition_info_get(dev, uuid_str, sp_count, sp_descs);
-}
-
-/**
- * ffa_sync_send_receive() - FFA_MSG_SEND_DIRECT_{REQ,RESP} driver operation
- * @dev: The FF-A bus device
- * @dst_part_id: destination partition ID
- * @msg: pointer to the message data preallocated by the client (in/out)
- * @is_smc64: select 64-bit or 32-bit FF-A ABI
- *
- * Driver operation for FFA_MSG_SEND_DIRECT_{REQ,RESP}.
- * Please see ffa_msg_send_direct_req_hdlr() description for more details.
- *
- * Return:
- *
- * 0 on success. Otherwise, failure
- */
-int ffa_sync_send_receive(struct udevice *dev, u16 dst_part_id,
- struct ffa_send_direct_data *msg, bool is_smc64)
-{
- struct ffa_bus_ops *ops = ffa_get_ops(dev);
-
- if (!ops->sync_send_receive)
- return -ENOSYS;
-
- return ops->sync_send_receive(dev, dst_part_id, msg, is_smc64);
-}
-
-/**
- * ffa_rxtx_unmap() - FFA_RXTX_UNMAP driver operation
- * @dev: The FF-A bus device
- *
- * Driver operation for FFA_RXTX_UNMAP.
- * Please see ffa_unmap_rxtx_buffers_hdlr() description for more details.
- *
- * Return:
- *
- * 0 on success. Otherwise, failure
- */
-int ffa_rxtx_unmap(struct udevice *dev)
-{
- struct ffa_bus_ops *ops = ffa_get_ops(dev);
-
- if (!ops->rxtx_unmap)
- return -ENOSYS;
-
- return ops->rxtx_unmap(dev);
-}
-
-/**
- * ffa_do_probe() - probing FF-A framework
- * @dev: the FF-A bus device (arm_ffa)
- *
- * Probing is triggered on demand by clients searching for the uclass.
- * At probe level the following actions are done:
- * - saving the FF-A framework version in uc_priv
- * - querying from secure world the u-boot endpoint ID
- * - querying from secure world the supported features of FFA_RXTX_MAP
- * - mapping the RX/TX buffers
- * - querying from secure world all the partitions information
- *
- * All data queried from secure world is saved in uc_priv.
- *
- * Return:
- *
- * 0 on success. Otherwise, failure
- */
-static int ffa_do_probe(struct udevice *dev)
-{
- int ret;
-
- ret = ffa_get_version_hdlr(dev);
- if (ret)
- return ret;
-
- ret = ffa_get_endpoint_id(dev);
- if (ret)
- return ret;
-
- ret = ffa_get_rxtx_map_features_hdlr(dev);
- if (ret)
- return ret;
-
- ret = ffa_map_rxtx_buffers_hdlr(dev);
- if (ret)
- return ret;
-
- ret = ffa_cache_partitions_info(dev);
- if (ret) {
- ffa_unmap_rxtx_buffers_hdlr(dev);
- return ret;
- }
-
- return 0;
-}
-
-UCLASS_DRIVER(ffa) = {
- .name = "ffa",
- .id = UCLASS_FFA,
- .pre_probe = ffa_do_probe,
- .pre_remove = ffa_unmap_rxtx_buffers_hdlr,
- .per_device_auto = sizeof(struct ffa_priv)
-};
+++ /dev/null
-// 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 <arm_ffa.h>
-#include <arm_ffa_priv.h>
-#include <dm.h>
-#include <log.h>
-#include <asm/global_data.h>
-#include <dm/device-internal.h>
-#include <linux/errno.h>
-
-DECLARE_GLOBAL_DATA_PTR;
-
-/**
- * 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 low level SMC assembly function
- */
-void invoke_ffa_fn(ffa_value_t args, ffa_value_t *res)
-{
- arm_smccc_1_2_smc(&args, res);
-}
-
-/**
- * arm_ffa_discover() - perform FF-A discovery
- * @dev: The Arm FF-A bus device (arm_ffa)
- * Try to discover the FF-A framework. Discovery is performed by
- * querying the FF-A framework version from secure world using the FFA_VERSION ABI.
- * Return:
- *
- * true on success. Otherwise, false.
- */
-static bool arm_ffa_discover(struct udevice *dev)
-{
- int ret;
-
- log_info("Arm FF-A framework discovery\n");
-
- ret = ffa_get_version_hdlr(dev);
- if (ret)
- return false;
-
- return true;
-}
-
-/**
- * arm_ffa_is_supported() - FF-A bus discovery callback
- * @invoke_fn: legacy SMC invoke function (not used)
- *
- * Perform FF-A discovery by calling arm_ffa_discover().
- * Discovery is performed by querying the FF-A framework version from
- * secure world using the FFA_VERSION ABI.
- *
- * The FF-A driver is registered as an SMCCC feature driver. So, features discovery
- * callbacks are called by the PSCI driver (PSCI device is the SMCCC features
- * root device).
- *
- * The FF-A driver supports the SMCCCv1.2 extended input/output registers.
- * So, the legacy SMC invocation is not used.
- *
- * Return:
- *
- * 0 on success. Otherwise, failure
- */
-static bool arm_ffa_is_supported(void (*invoke_fn)(ulong a0, ulong a1,
- ulong a2, ulong a3,
- ulong a4, ulong a5,
- ulong a6, ulong a7,
- struct arm_smccc_res *res))
-{
- return arm_ffa_discover(NULL);
-}
-
-/* Arm FF-A driver operations */
-
-static const struct ffa_bus_ops ffa_ops = {
- .partition_info_get = ffa_get_partitions_info_hdlr,
- .sync_send_receive = ffa_msg_send_direct_req_hdlr,
- .rxtx_unmap = ffa_unmap_rxtx_buffers_hdlr,
-};
-
-/* Registering the FF-A driver as an SMCCC feature driver */
-
-ARM_SMCCC_FEATURE_DRIVER(arm_ffa) = {
- .driver_name = FFA_DRV_NAME,
- .is_supported = arm_ffa_is_supported,
-};
-
-/* Declaring the FF-A driver under UCLASS_FFA */
-
-U_BOOT_DRIVER(arm_ffa) = {
- .name = FFA_DRV_NAME,
- .id = UCLASS_FFA,
- .flags = DM_REMOVE_OS_PREPARE,
- .ops = &ffa_ops,
-};
+++ /dev/null
-// 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),
-};
+++ /dev/null
-// 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 <arm_ffa.h>
-#include <dm.h>
-#include <log.h>
-#include <asm/global_data.h>
-#include <asm/sandbox_arm_ffa_priv.h>
-#include <dm/device-internal.h>
-#include <linux/errno.h>
-
-DECLARE_GLOBAL_DATA_PTR;
-
-/**
- * sandbox_ffa_discover() - perform sandbox FF-A discovery
- * @dev: The sandbox FF-A bus device
- * Try to discover the FF-A framework. Discovery is performed by
- * querying the FF-A framework version from secure world using the FFA_VERSION ABI.
- * Return:
- *
- * 0 on success. Otherwise, failure
- */
-static int sandbox_ffa_discover(struct udevice *dev)
-{
- int ret;
- struct udevice *emul;
-
- log_info("Emulated FF-A framework discovery\n");
-
- ret = ffa_emul_find(dev, &emul);
- if (ret) {
- log_err("Cannot find FF-A emulator\n");
- return ret;
- }
-
- ret = ffa_get_version_hdlr(dev);
- if (ret)
- return ret;
-
- return 0;
-}
-
-/**
- * sandbox_ffa_probe() - The sandbox FF-A driver probe function
- * @dev: the sandbox-arm-ffa device
- * Save the emulator device in uc_priv.
- * Return:
- *
- * 0 on success.
- */
-static int sandbox_ffa_probe(struct udevice *dev)
-{
- int ret;
- struct ffa_priv *uc_priv = dev_get_uclass_priv(dev);
-
- ret = uclass_first_device_err(UCLASS_FFA_EMUL, &uc_priv->emul);
- if (ret) {
- log_err("Cannot find FF-A emulator\n");
- return ret;
- }
-
- return 0;
-}
-
-/**
- * sandbox_ffa_bind() - The sandbox FF-A driver bind function
- * @dev: the sandbox-arm-ffa device
- * Try to discover the emulated FF-A bus.
- * Return:
- *
- * 0 on success.
- */
-static int sandbox_ffa_bind(struct udevice *dev)
-{
- int ret;
-
- ret = sandbox_ffa_discover(dev);
- if (ret)
- return ret;
-
- return 0;
-}
-
-/* Sandbox Arm FF-A emulator operations */
-
-static const struct ffa_bus_ops sandbox_ffa_ops = {
- .partition_info_get = ffa_get_partitions_info_hdlr,
- .sync_send_receive = ffa_msg_send_direct_req_hdlr,
- .rxtx_unmap = ffa_unmap_rxtx_buffers_hdlr,
-};
-
-static const struct udevice_id sandbox_ffa_id[] = {
- { "sandbox,arm-ffa", 0 },
- { },
-};
-
-/* Declaring the sandbox FF-A driver under UCLASS_FFA */
-U_BOOT_DRIVER(sandbox_arm_ffa) = {
- .name = "sandbox_arm_ffa",
- .of_match = sandbox_ffa_id,
- .id = UCLASS_FFA,
- .bind = sandbox_ffa_bind,
- .probe = sandbox_ffa_probe,
- .ops = &sandbox_ffa_ops,
-};
+++ /dev/null
-/* 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>
- */
-
-#ifndef __ARM_FFA_H
-#define __ARM_FFA_H
-
-#include <linux/printk.h>
-
-/*
- * This header is public. It can be used by clients to access
- * data structures and definitions they need
- */
-
-/*
- * struct ffa_partition_info - Partition information descriptor
- * @id: Partition ID
- * @exec_ctxt: Execution context count
- * @properties: Partition properties
- *
- * Data structure containing information about partitions instantiated in the system
- * This structure is filled with the data queried by FFA_PARTITION_INFO_GET
- */
-struct ffa_partition_info {
- u16 id;
- u16 exec_ctxt;
-/* partition supports receipt of direct requests */
-#define FFA_PARTITION_DIRECT_RECV BIT(0)
-/* partition can send direct requests. */
-#define FFA_PARTITION_DIRECT_SEND BIT(1)
-/* partition can send and receive indirect messages. */
-#define FFA_PARTITION_INDIRECT_MSG BIT(2)
- u32 properties;
-};
-
-/*
- * struct ffa_partition_uuid - 16 bytes UUID transmitted by FFA_PARTITION_INFO_GET
- * @a1-4: 32-bit words access to the UUID data
- *
- */
-struct ffa_partition_uuid {
- u32 a1; /* w1 */
- u32 a2; /* w2 */
- u32 a3; /* w3 */
- u32 a4; /* w4 */
-};
-
-/**
- * struct ffa_partition_desc - the secure partition descriptor
- * @info: partition information
- * @sp_uuid: the secure partition UUID
- *
- * Each partition has its descriptor containing the partitions information and the UUID
- */
-struct ffa_partition_desc {
- struct ffa_partition_info info;
- struct ffa_partition_uuid sp_uuid;
-};
-
-/*
- * struct ffa_send_direct_data - Data structure hosting the data
- * used by FFA_MSG_SEND_DIRECT_{REQ,RESP}
- * @data0-4: Data read/written from/to x3-x7 registers
- *
- * Data structure containing the data to be sent by FFA_MSG_SEND_DIRECT_REQ
- * or read from FFA_MSG_SEND_DIRECT_RESP
- */
-
-/* For use with FFA_MSG_SEND_DIRECT_{REQ,RESP} which pass data via registers */
-struct ffa_send_direct_data {
- ulong data0; /* w3/x3 */
- ulong data1; /* w4/x4 */
- ulong data2; /* w5/x5 */
- ulong data3; /* w6/x6 */
- ulong data4; /* w7/x7 */
-};
-
-struct udevice;
-
-/**
- * struct ffa_bus_ops - Operations for FF-A
- * @partition_info_get: callback for the FFA_PARTITION_INFO_GET
- * @sync_send_receive: callback for the FFA_MSG_SEND_DIRECT_REQ
- * @rxtx_unmap: callback for the FFA_RXTX_UNMAP
- *
- * The data structure providing all the operations supported by the driver.
- * This structure is EFI runtime resident.
- */
-struct ffa_bus_ops {
- int (*partition_info_get)(struct udevice *dev, const char *uuid_str,
- u32 *sp_count, struct ffa_partition_desc **sp_descs);
- int (*sync_send_receive)(struct udevice *dev, u16 dst_part_id,
- struct ffa_send_direct_data *msg,
- bool is_smc64);
- int (*rxtx_unmap)(struct udevice *dev);
-};
-
-#define ffa_get_ops(dev) ((struct ffa_bus_ops *)(dev)->driver->ops)
-
-/**
- * ffa_rxtx_unmap() - FFA_RXTX_UNMAP driver operation
- * Please see ffa_unmap_rxtx_buffers_hdlr() description for more details.
- */
-int ffa_rxtx_unmap(struct udevice *dev);
-
-/**
- * ffa_unmap_rxtx_buffers_hdlr() - FFA_RXTX_UNMAP handler function
- * @dev: The arm_ffa bus device
- *
- * This function implements FFA_RXTX_UNMAP FF-A function
- * to unmap the RX/TX buffers
- *
- * Return:
- *
- * 0 on success. Otherwise, failure
- */
-int ffa_unmap_rxtx_buffers_hdlr(struct udevice *dev);
-
-/**
- * ffa_sync_send_receive() - FFA_MSG_SEND_DIRECT_{REQ,RESP} driver operation
- * Please see ffa_msg_send_direct_req_hdlr() description for more details.
- */
-int ffa_sync_send_receive(struct udevice *dev, u16 dst_part_id,
- struct ffa_send_direct_data *msg, bool is_smc64);
-
-/**
- * ffa_msg_send_direct_req_hdlr() - FFA_MSG_SEND_DIRECT_{REQ,RESP} handler function
- * @dev: The arm_ffa bus device
- * @dst_part_id: destination partition ID
- * @msg: pointer to the message data preallocated by the client (in/out)
- * @is_smc64: select 64-bit or 32-bit FF-A ABI
- *
- * This function implements FFA_MSG_SEND_DIRECT_{REQ,RESP}
- * FF-A functions.
- *
- * FFA_MSG_SEND_DIRECT_REQ is used to send the data to the secure partition.
- * The response from the secure partition is handled by reading the
- * FFA_MSG_SEND_DIRECT_RESP arguments.
- *
- * The maximum size of the data that can be exchanged is 40 bytes which is
- * sizeof(struct ffa_send_direct_data) as defined by the FF-A specification 1.0
- * in the section relevant to FFA_MSG_SEND_DIRECT_{REQ,RESP}
- *
- * Return:
- *
- * 0 on success. Otherwise, failure
- */
-int ffa_msg_send_direct_req_hdlr(struct udevice *dev, u16 dst_part_id,
- struct ffa_send_direct_data *msg, bool is_smc64);
-
-/**
- * ffa_partition_info_get() - FFA_PARTITION_INFO_GET driver operation
- * Please see ffa_get_partitions_info_hdlr() description for more details.
- */
-int ffa_partition_info_get(struct udevice *dev, const char *uuid_str,
- u32 *sp_count, struct ffa_partition_desc **sp_descs);
-
-/**
- * ffa_get_partitions_info_hdlr() - FFA_PARTITION_INFO_GET handler function
- * @uuid_str: pointer to the UUID string
- * @sp_count: address of the variable containing the number of partitions matching the UUID
- * The variable is set by the driver
- * @sp_descs: address of the descriptors of the partitions matching the UUID
- * The address is set by the driver
- *
- * Return the number of partitions and their descriptors matching the UUID
- *
- * Query the secure partition data from uc_priv.
- * If not found, invoke FFA_PARTITION_INFO_GET
- * FF-A function to query the partition information from secure world.
- *
- * A client of the FF-A driver should know the UUID of the service it wants to
- * access. It should use the UUID to request the FF-A driver to provide the
- * partition(s) information of the service. The FF-A driver uses
- * PARTITION_INFO_GET to obtain this information. This is implemented through
- * ffa_get_partitions_info_hdlr() function.
- * A new FFA_PARTITION_INFO_GET call is issued (first one performed through
- * ffa_cache_partitions_info) allowing to retrieve the partition(s) information.
- * They are not saved (already done). We only update the UUID in the cached area.
- * This assumes that partitions data does not change in the secure world.
- * Otherwise u-boot will have an outdated partition data. The benefit of caching
- * the information in the FF-A driver is to accommodate discovery after
- * ExitBootServices().
- *
- * Return:
- *
- * @sp_count: the number of partitions
- * @sp_descs: address of the partitions descriptors
- *
- * On success 0 is returned. Otherwise, failure
- */
-int ffa_get_partitions_info_hdlr(struct udevice *dev, const char *uuid_str,
- u32 *sp_count, struct ffa_partition_desc **sp_descs);
-
-struct ffa_priv;
-
-/**
- * ffa_set_smc_conduit() - Set the SMC conduit
- * @dev: The FF-A bus device
- *
- * Selects the SMC conduit by setting the FF-A ABI invoke function.
- *
- * Return:
- *
- * 0 on success. Otherwise, failure
- */
-int ffa_set_smc_conduit(struct udevice *dev);
-
-#endif
+++ /dev/null
-/* 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>
- */
-
-#ifndef __ARM_FFA_PRV_H
-#define __ARM_FFA_PRV_H
-
-#include <mapmem.h>
-#include <linux/bitfield.h>
-#include <linux/bitops.h>
-
-/* This header is exclusively used by the FF-A Uclass and FF-A driver(s) */
-
-/* Arm FF-A driver name */
-#define FFA_DRV_NAME "arm_ffa"
-
-/* The FF-A SMC function definitions */
-
-#if CONFIG_IS_ENABLED(SANDBOX)
-
-/* Providing Arm SMCCC declarations to sandbox */
-
-/**
- * struct sandbox_smccc_1_2_regs - emulated SMC call arguments or results
- * @a0-a17 argument values from registers 0 to 17
- */
-struct sandbox_smccc_1_2_regs {
- ulong a0;
- ulong a1;
- ulong a2;
- ulong a3;
- ulong a4;
- ulong a5;
- ulong a6;
- ulong a7;
- ulong a8;
- ulong a9;
- ulong a10;
- ulong a11;
- ulong a12;
- ulong a13;
- ulong a14;
- ulong a15;
- ulong a16;
- ulong a17;
-};
-
-typedef struct sandbox_smccc_1_2_regs ffa_value_t;
-
-#define ARM_SMCCC_FAST_CALL 1UL
-#define ARM_SMCCC_OWNER_STANDARD 4
-#define ARM_SMCCC_SMC_32 0
-#define ARM_SMCCC_SMC_64 1
-#define ARM_SMCCC_TYPE_SHIFT 31
-#define ARM_SMCCC_CALL_CONV_SHIFT 30
-#define ARM_SMCCC_OWNER_MASK 0x3f
-#define ARM_SMCCC_OWNER_SHIFT 24
-#define ARM_SMCCC_FUNC_MASK 0xffff
-
-#define ARM_SMCCC_CALL_VAL(type, calling_convention, owner, func_num) \
- (((type) << ARM_SMCCC_TYPE_SHIFT) | \
- ((calling_convention) << ARM_SMCCC_CALL_CONV_SHIFT) | \
- (((owner) & ARM_SMCCC_OWNER_MASK) << ARM_SMCCC_OWNER_SHIFT) | \
- ((func_num) & ARM_SMCCC_FUNC_MASK))
-
-#else
-/* CONFIG_ARM64 */
-#include <linux/arm-smccc.h>
-typedef struct arm_smccc_1_2_regs ffa_value_t;
-#endif
-
-/* Defining the function pointer type for the function executing the FF-A ABIs */
-typedef void (*invoke_ffa_fn_t)(ffa_value_t args, ffa_value_t *res);
-
-/* FF-A driver version definitions */
-
-#define MAJOR_VERSION_MASK GENMASK(30, 16)
-#define MINOR_VERSION_MASK GENMASK(15, 0)
-#define GET_FFA_MAJOR_VERSION(x) \
- ((u16)(FIELD_GET(MAJOR_VERSION_MASK, (x))))
-#define GET_FFA_MINOR_VERSION(x) \
- ((u16)(FIELD_GET(MINOR_VERSION_MASK, (x))))
-#define PACK_VERSION_INFO(major, minor) \
- (FIELD_PREP(MAJOR_VERSION_MASK, (major)) | \
- FIELD_PREP(MINOR_VERSION_MASK, (minor)))
-
-#define FFA_MAJOR_VERSION (1)
-#define FFA_MINOR_VERSION (0)
-#define FFA_VERSION_1_0 \
- PACK_VERSION_INFO(FFA_MAJOR_VERSION, FFA_MINOR_VERSION)
-
-/* Endpoint ID mask (u-boot endpoint ID) */
-
-#define GET_SELF_ENDPOINT_ID_MASK GENMASK(15, 0)
-#define GET_SELF_ENDPOINT_ID(x) \
- ((u16)(FIELD_GET(GET_SELF_ENDPOINT_ID_MASK, (x))))
-
-#define PREP_SELF_ENDPOINT_ID_MASK GENMASK(31, 16)
-#define PREP_SELF_ENDPOINT_ID(x) \
- (FIELD_PREP(PREP_SELF_ENDPOINT_ID_MASK, (x)))
-
-/* Partition endpoint ID mask (partition with which u-boot communicates with) */
-
-#define PREP_PART_ENDPOINT_ID_MASK GENMASK(15, 0)
-#define PREP_PART_ENDPOINT_ID(x) \
- (FIELD_PREP(PREP_PART_ENDPOINT_ID_MASK, (x)))
-
-/* Definitions of the Arm FF-A interfaces supported by the Arm FF-A driver */
-
-#define FFA_SMC(calling_convention, func_num) \
- ARM_SMCCC_CALL_VAL(ARM_SMCCC_FAST_CALL, (calling_convention), \
- ARM_SMCCC_OWNER_STANDARD, (func_num))
-
-#define FFA_SMC_32(func_num) FFA_SMC(ARM_SMCCC_SMC_32, (func_num))
-#define FFA_SMC_64(func_num) FFA_SMC(ARM_SMCCC_SMC_64, (func_num))
-
-enum ffa_abis {
- FFA_ERROR = 0x60,
- FFA_SUCCESS = 0x61,
- FFA_INTERRUPT = 0x62,
- FFA_VERSION = 0x63,
- FFA_FEATURES = 0x64,
- FFA_RX_RELEASE = 0x65,
- FFA_RXTX_MAP = 0x66,
- FFA_RXTX_UNMAP = 0x67,
- FFA_PARTITION_INFO_GET = 0x68,
- FFA_ID_GET = 0x69,
- FFA_RUN = 0x6d,
- FFA_MSG_SEND_DIRECT_REQ = 0x6f,
- FFA_MSG_SEND_DIRECT_RESP = 0x70,
-
- /* To be updated when adding new FFA IDs */
- FFA_FIRST_ID = FFA_ERROR, /* Lowest number ID */
- FFA_LAST_ID = FFA_MSG_SEND_DIRECT_RESP, /* Highest number ID */
-};
-
-enum ffa_abi_errcode {
- NOT_SUPPORTED = 1,
- INVALID_PARAMETERS,
- NO_MEMORY,
- BUSY,
- INTERRUPTED,
- DENIED,
- RETRY,
- ABORTED,
- MAX_NUMBER_FFA_ERR
-};
-
-extern int ffa_to_std_errmap[MAX_NUMBER_FFA_ERR];
-
-/* Container structure and helper macros to map between an FF-A error and relevant error log */
-struct ffa_abi_errmap {
- char *err_str[MAX_NUMBER_FFA_ERR];
-};
-
-#define FFA_ERRMAP_COUNT (FFA_LAST_ID - FFA_FIRST_ID + 1)
-#define FFA_ID_TO_ERRMAP_ID(ffa_id) ((ffa_id) - FFA_FIRST_ID)
-
-/**
- * enum ffa_rxtx_buf_sizes - minimum sizes supported
- * for the RX/TX buffers
- */
-enum ffa_rxtx_buf_sizes {
- RXTX_4K,
- RXTX_64K,
- RXTX_16K
-};
-
-/**
- * struct ffa_rxtxpair - Hosts the RX/TX buffers virtual addresses
- * @rxbuf: virtual address of the RX buffer
- * @txbuf: virtual address of the TX buffer
- * @rxtx_min_pages: RX/TX buffers minimum size in pages
- *
- * Hosts the virtual addresses of the mapped RX/TX buffers
- * These addresses are used by the FF-A functions that use the RX/TX buffers
- */
-struct ffa_rxtxpair {
- void *rxbuf; /* Virtual address returned by memalign */
- void *txbuf; /* Virtual address returned by memalign */
- size_t rxtx_min_pages; /* Minimum number of pages in each of the RX/TX buffers */
-};
-
-struct ffa_partition_desc;
-
-/**
- * struct ffa_partitions - descriptors for all secure partitions
- * @count: The number of partitions descriptors
- * @descs The partitions descriptors table
- *
- * Contains the partitions descriptors table
- */
-struct ffa_partitions {
- u32 count;
- struct ffa_partition_desc *descs; /* Virtual address */
-};
-
-/**
- * struct ffa_priv - the driver private data structure
- *
- * @fwk_version: FF-A framework version
- * @emul: FF-A sandbox emulator
- * @id: u-boot endpoint ID
- * @partitions: The partitions descriptors structure
- * @pair: The RX/TX buffers pair
- *
- * The device private data structure containing all the
- * data read from secure world.
- */
-struct ffa_priv {
- u32 fwk_version;
- struct udevice *emul;
- u16 id;
- struct ffa_partitions partitions;
- struct ffa_rxtxpair pair;
-};
-
-/**
- * ffa_get_version_hdlr() - FFA_VERSION handler function
- * @dev: The FF-A bus device
- *
- * Implement FFA_VERSION FF-A function
- * to get from the secure world the FF-A framework version
- * FFA_VERSION is used to discover the FF-A framework.
- *
- * Return:
- *
- * 0 on success. Otherwise, failure
- */
-int ffa_get_version_hdlr(struct udevice *dev);
-
-/**
- * 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 low level SMC implementation.
- * This function should be implemented by the user driver.
- */
-void invoke_ffa_fn(ffa_value_t args, ffa_value_t *res);
-
-#endif
*
* (C) Copyright 2012
* Pavel Herrmann <morpheus.ibis@gmail.com>
- *
- * Copyright 2022-2023 Arm Limited and/or its affiliates <open-source-office@arm.com>
- *
- * Authors:
- * Abdellatif El Khlifi <abdellatif.elkhlifi@arm.com>
*/
#ifndef _DM_UCLASS_ID_H
UCLASS_ETH, /* Ethernet device */
UCLASS_ETH_PHY, /* Ethernet PHY device */
UCLASS_EXTCON, /* External Connector Class */
- UCLASS_FFA, /* Arm Firmware Framework for Armv8-A */
- UCLASS_FFA_EMUL, /* sandbox FF-A device emulator */
UCLASS_FIRMWARE, /* Firmware */
UCLASS_FPGA, /* FPGA device */
UCLASS_FUZZING_ENGINE, /* Fuzzing engine */
/* SPDX-License-Identifier: GPL-2.0 */
/*
* Copyright (c) 2015, Linaro Limited
- * Copyright 2022-2023 Arm Limited and/or its affiliates <open-source-office@arm.com>
- *
- * Authors:
- * Abdellatif El Khlifi <abdellatif.elkhlifi@arm.com>
*/
#ifndef __LINUX_ARM_SMCCC_H
#define __LINUX_ARM_SMCCC_H
unsigned long a3;
};
-#ifdef CONFIG_ARM64
-/**
- * struct arm_smccc_1_2_regs - Arguments for or Results from SMC call
- * @a0-a17 argument values from registers 0 to 17
- */
-struct arm_smccc_1_2_regs {
- unsigned long a0;
- unsigned long a1;
- unsigned long a2;
- unsigned long a3;
- unsigned long a4;
- unsigned long a5;
- unsigned long a6;
- unsigned long a7;
- unsigned long a8;
- unsigned long a9;
- unsigned long a10;
- unsigned long a11;
- unsigned long a12;
- unsigned long a13;
- unsigned long a14;
- unsigned long a15;
- unsigned long a16;
- unsigned long a17;
-};
-
-/**
- * arm_smccc_1_2_smc() - make SMC calls
- * @args: arguments passed via struct arm_smccc_1_2_regs
- * @res: result values via struct arm_smccc_1_2_regs
- *
- * This function is used to make SMC calls following SMC Calling Convention
- * v1.2 or above. The content of the supplied param are copied from the
- * structure to registers prior to the SMC instruction. The return values
- * are updated with the content from registers on return from the SMC
- * instruction.
- */
-asmlinkage void arm_smccc_1_2_smc(const struct arm_smccc_1_2_regs *args,
- struct arm_smccc_1_2_regs *res);
-#endif
-
/**
* struct arm_smccc_quirk - Contains quirk information
* @id: quirk identification
* Copyright (c) 2017, Intel Corporation. All rights reserved.
* Copyright (C) 2020 Linaro Ltd. <sughosh.ganu@linaro.org>
* Copyright (C) 2020 Linaro Ltd. <ilias.apalodimas@linaro.org>
- * Copyright 2022-2023 Arm Limited and/or its affiliates <open-source-office@arm.com>
- * Authors:
- * Abdellatif El Khlifi <abdellatif.elkhlifi@arm.com>
*/
#ifndef _MM_COMMUNICATION_H_
#include <part_efi.h>
-/* MM service UUID string (big-endian format). This UUID is common across all MM SPs */
-#define MM_SP_UUID "33d532ed-e699-0942-c09c-a798d9cd722d"
-
/*
* Interface to the pseudo Trusted Application (TA), which provides a
* communication channel with the Standalone MM (Management Mode)
u16 name[];
};
-/* supported MM transports */
-enum mm_comms_select {
- MM_COMMS_UNDEFINED,
- MM_COMMS_FFA,
- MM_COMMS_OPTEE
-};
-
#endif /* _MM_COMMUNICATION_H_ */
/*
* Copyright (C) 2014 Samsung Electronics
* Przemyslaw Marczak <p.marczak@samsung.com>
- * Copyright 2022-2023 Arm Limited and/or its affiliates <open-source-office@arm.com>
- *
- * Authors:
- * Abdellatif El Khlifi <abdellatif.elkhlifi@arm.com>
*/
#ifndef __UUID_H__
#define __UUID_H__
const char *uuid_guid_get_str(const unsigned char *guid_bin);
void gen_rand_uuid(unsigned char *uuid_bin);
void gen_rand_uuid_str(char *uuid_str, int str_format);
-
-/**
- * uuid_str_to_le_bin() - Convert string UUID to little endian binary data.
- * @uuid_str: pointer to UUID string
- * @uuid_bin: pointer to allocated array for little endian output [16B]
- * Return:
- * uuid_bin filled with little endian UUID data
- * On success 0 is returned. Otherwise, failure code.
- */
-int uuid_str_to_le_bin(const char *uuid_str, unsigned char *uuid_bin);
-
#endif
stored as file /ubootefi.var on the EFI system partition.
config EFI_MM_COMM_TEE
- bool "UEFI variables storage service via the trusted world"
- select ARM_FFA_TRANSPORT
- select TEE
- select OPTEE
+ bool "UEFI variables storage service via OP-TEE"
+ depends on OPTEE
help
- Allowing access to the MM SP services (SPs such as StandAlonneMM, smm-gateway).
- When using the u-boot OP-TEE driver, StandAlonneMM is supported.
- When using the u-boot FF-A driver any MM SP is supported.
-
If OP-TEE is present and running StandAloneMM, dispatch all UEFI
variable related operations to that. The application will verify,
authenticate and store the variables on an RPMB.
- When ARM_FFA_TRANSPORT is used, dispatch all UEFI variable related
- operations to the MM SP running in the secure world.
- A door bell mechanism is used to notify the SP when there is data in the shared
- MM buffer. The data is copied by u-boot to the shared buffer before issuing
- the door bell event.
-
-config FFA_SHARED_MM_BUF_SIZE
- int "Memory size of the shared MM communication buffer"
- default 0
- depends on EFI_MM_COMM_TEE
- help
- This defines the size in bytes of the memory area reserved for the shared
- buffer used for communication between the MM feature in U-Boot and
- the MM SP in secure world.
- The size of the memory region must be a multiple of the size of the maximum
- translation granule size that is specified in the ID_AA64MMFR0_EL1 System register.
- It is assumed that the MM SP knows the size of the shared MM communication buffer.
-
-config FFA_SHARED_MM_BUF_OFFSET
- int "Data offset in the shared MM communication buffer"
- default 0
- depends on EFI_MM_COMM_TEE
- help
- This defines the offset in bytes of the data read or written to in the shared
- buffer by the MM SP.
-
-config FFA_SHARED_MM_BUF_ADDR
- hex "Define the address of the shared MM communication buffer"
- default 0x0
- depends on EFI_MM_COMM_TEE
- help
- This defines the address of the shared MM communication buffer
- used for communication between the MM feature in U-Boot and
- the MM SP in secure world.
- It is assumed that the MM SP knows the address of the shared MM communication buffer.
-
config EFI_VARIABLE_NO_STORE
bool "Don't persist non-volatile UEFI variables"
help
*
* Copyright (C) 2019 Linaro Ltd. <sughosh.ganu@linaro.org>
* Copyright (C) 2019 Linaro Ltd. <ilias.apalodimas@linaro.org>
- * 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 <arm_ffa.h>
-#include <cpu_func.h>
-#include <dm.h>
#include <efi.h>
#include <efi_api.h>
#include <efi_loader.h>
#include <efi_variable.h>
+#include <tee.h>
#include <malloc.h>
-#include <mapmem.h>
#include <mm_communication.h>
-#include <tee.h>
-
-/* MM return codes */
-#define MM_SUCCESS (0)
-#define MM_NOT_SUPPORTED (-1)
-#define MM_INVALID_PARAMETER (-2)
-#define MM_DENIED (-3)
-#define MM_NO_MEMORY (-5)
-static const char *mm_sp_svc_uuid = MM_SP_UUID;
-static u16 mm_sp_id;
extern struct efi_var_file __efi_runtime_data *efi_var_buf;
static efi_uintn_t max_buffer_size; /* comm + var + func + data */
static efi_uintn_t max_payload_size; /* func + data */
}
/**
- * ffa_notify_mm_sp() - Announce there is data in the shared buffer
- *
- * Notify the MM partition in the trusted world that
- * data is available in the shared buffer.
- * This is a blocking call during which trusted world has exclusive access
- * to the MM shared buffer.
- *
- * Return:
- *
- * 0 on success
- */
-static int ffa_notify_mm_sp(void)
-{
- struct ffa_send_direct_data msg = {0};
- int ret;
- int sp_event_ret;
- struct udevice *dev;
-
- ret = uclass_first_device_err(UCLASS_FFA, &dev);
- if (ret) {
- log_err("EFI: Cannot find FF-A bus device, notify MM SP failure\n");
- return ret;
- }
-
- msg.data0 = CONFIG_FFA_SHARED_MM_BUF_OFFSET; /* x3 */
-
- ret = ffa_sync_send_receive(dev, mm_sp_id, &msg, 1);
- if (ret)
- return ret;
-
- sp_event_ret = msg.data0; /* x3 */
-
- switch (sp_event_ret) {
- case MM_SUCCESS:
- ret = 0;
- break;
- case MM_NOT_SUPPORTED:
- ret = -EINVAL;
- break;
- case MM_INVALID_PARAMETER:
- ret = -EPERM;
- break;
- case MM_DENIED:
- ret = -EACCES;
- break;
- case MM_NO_MEMORY:
- ret = -EBUSY;
- break;
- default:
- ret = -EACCES;
- }
-
- return ret;
-}
-
-/**
- * ffa_discover_mm_sp_id() - Query the MM partition ID
- *
- * Use the FF-A driver to get the MM partition ID.
- * If multiple partitions are found, use the first one.
- * This is a boot time function.
- *
- * Return:
- *
- * 0 on success
- */
-static int ffa_discover_mm_sp_id(void)
-{
- u32 count = 0;
- int ret;
- struct ffa_partition_desc *descs;
- struct udevice *dev;
-
- ret = uclass_first_device_err(UCLASS_FFA, &dev);
- if (ret) {
- log_err("EFI: Cannot find FF-A bus device, MM SP discovery failure\n");
- return ret;
- }
-
- /* Ask the driver to fill the buffer with the SPs info */
- ret = ffa_partition_info_get(dev, mm_sp_svc_uuid, &count, &descs);
- if (ret) {
- log_err("EFI: Failure in querying SPs info (%d), MM SP discovery failure\n", ret);
- return ret;
- }
-
- /* MM SPs found , use the first one */
-
- mm_sp_id = descs[0].info.id;
-
- log_info("EFI: MM partition ID 0x%x\n", mm_sp_id);
-
- return 0;
-}
-
-/**
- * ffa_mm_communicate() - Exchange EFI services data with the MM partition using FF-A
- * @comm_buf: locally allocated communication buffer used for rx/tx
- * @dsize: communication buffer size
- *
- * Issue a door bell event to notify the MM partition (SP) running in OP-TEE
- * that there is data to read from the shared buffer.
- * Communication with the MM SP is performed using FF-A transport.
- * On the event, MM SP can read the data from the buffer and
- * update the MM shared buffer with response data.
- * The response data is copied back to the communication buffer.
- *
- * Return:
- *
- * EFI status code
- */
-static efi_status_t ffa_mm_communicate(void *comm_buf, ulong comm_buf_size)
-{
- ulong tx_data_size;
- int ffa_ret;
- efi_status_t efi_ret;
- struct efi_mm_communicate_header *mm_hdr;
- void *virt_shared_buf;
-
- if (!comm_buf)
- return EFI_INVALID_PARAMETER;
-
- /* Discover MM partition ID at boot time */
- if (!mm_sp_id && ffa_discover_mm_sp_id()) {
- log_err("EFI: Failure to discover MM SP ID at boot time, FF-A MM comms failure\n");
- return EFI_UNSUPPORTED;
- }
-
- mm_hdr = (struct efi_mm_communicate_header *)comm_buf;
- tx_data_size = mm_hdr->message_len + sizeof(efi_guid_t) + sizeof(size_t);
-
- if (comm_buf_size != tx_data_size || tx_data_size > CONFIG_FFA_SHARED_MM_BUF_SIZE)
- return EFI_INVALID_PARAMETER;
-
- /* Copy the data to the shared buffer */
-
- virt_shared_buf = map_sysmem((phys_addr_t)CONFIG_FFA_SHARED_MM_BUF_ADDR, 0);
- memcpy(virt_shared_buf, comm_buf, tx_data_size);
-
- /*
- * The secure world might have cache disabled for
- * the device region used for shared buffer (which is the case for Optee).
- * In this case, the secure world reads the data from DRAM.
- * Let's flush the cache so the DRAM is updated with the latest data.
- */
-#ifdef CONFIG_ARM64
- invalidate_dcache_all();
-#endif
-
- /* Announce there is data in the shared buffer */
-
- ffa_ret = ffa_notify_mm_sp();
-
- switch (ffa_ret) {
- case 0: {
- ulong rx_data_size;
- /* Copy the MM SP response from the shared buffer to the communication buffer */
- rx_data_size = ((struct efi_mm_communicate_header *)virt_shared_buf)->message_len +
- sizeof(efi_guid_t) +
- sizeof(size_t);
-
- if (rx_data_size > comm_buf_size) {
- efi_ret = EFI_OUT_OF_RESOURCES;
- break;
- }
-
- memcpy(comm_buf, virt_shared_buf, rx_data_size);
- efi_ret = EFI_SUCCESS;
- break;
- }
- case -EINVAL:
- efi_ret = EFI_DEVICE_ERROR;
- break;
- case -EPERM:
- efi_ret = EFI_INVALID_PARAMETER;
- break;
- case -EACCES:
- efi_ret = EFI_ACCESS_DENIED;
- break;
- case -EBUSY:
- efi_ret = EFI_OUT_OF_RESOURCES;
- break;
- default:
- efi_ret = EFI_ACCESS_DENIED;
- }
-
- unmap_sysmem(virt_shared_buf);
- return efi_ret;
-}
-
-/**
- * get_mm_comms() - detect the available MM transport
- *
- * Make sure the FF-A bus is probed successfully
- * which means FF-A communication with secure world works and ready
- * for use.
- *
- * If FF-A bus is not ready, use OPTEE comms.
- *
- * Return:
- *
- * MM_COMMS_FFA or MM_COMMS_OPTEE
- */
-static enum mm_comms_select get_mm_comms(void)
-{
- struct udevice *dev;
- int ret;
-
- ret = uclass_first_device_err(UCLASS_FFA, &dev);
- if (ret) {
- log_err("EFI: Cannot find FF-A bus device, trying Optee comms\n");
- return MM_COMMS_OPTEE;
- }
-
- return MM_COMMS_FFA;
-}
-
-/**
- * mm_communicate() - Adjust the communication buffer to the MM SP and send
+ * mm_communicate() - Adjust the cmonnucation buffer to StandAlonneMM and send
* it to OP-TEE
*
- * @comm_buf: locally allocated communication buffer
+ * @comm_buf: locally allocted communcation buffer
* @dsize: buffer size
- *
- * The SP (also called partition) can be any MM SP such as StandAlonneMM or smm-gateway.
- * The comm_buf format is the same for both partitions.
- * When using the u-boot OP-TEE driver, StandAlonneMM is supported.
- * When using the u-boot FF-A driver, any MM SP is supported.
- *
* Return: status code
*/
static efi_status_t mm_communicate(u8 *comm_buf, efi_uintn_t dsize)
{
efi_status_t ret;
- enum mm_comms_select mm_comms;
struct efi_mm_communicate_header *mm_hdr;
struct smm_variable_communicate_header *var_hdr;
mm_hdr = (struct efi_mm_communicate_header *)comm_buf;
var_hdr = (struct smm_variable_communicate_header *)mm_hdr->data;
- mm_comms = get_mm_comms();
- if (mm_comms == MM_COMMS_FFA)
- ret = ffa_mm_communicate(comm_buf, dsize);
- else
- ret = optee_mm_communicate(comm_buf, dsize);
-
+ ret = optee_mm_communicate(comm_buf, dsize);
if (ret != EFI_SUCCESS) {
log_err("%s failed!\n", __func__);
return ret;
ret = EFI_NOT_FOUND;
if (ret != EFI_SUCCESS)
- log_err("Unable to notify the MM partition for ExitBootServices\n");
+ log_err("Unable to notify StMM for ExitBootServices\n");
free(comm_buf);
/*
// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright 2011 Calxeda, Inc.
- * 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>
return 0;
}
-/**
- * uuid_str_to_le_bin() - Convert string UUID to little endian binary data.
- * @uuid_str: pointer to UUID string
- * @uuid_bin: pointer to allocated array for little endian output [16B]
- *
- * UUID string is 36 characters (36 bytes):
- *
- * xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx
- *
- * where x is a hexadecimal character. Fields are separated by '-'s.
- * When converting to a little endian binary UUID, the string fields are reversed.
- *
- * Return:
- *
- * uuid_bin filled with little endian UUID data
- * On success 0 is returned. Otherwise, failure code.
- */
-int uuid_str_to_le_bin(const char *uuid_str, unsigned char *uuid_bin)
-{
- u16 tmp16;
- u32 tmp32;
- u64 tmp64;
-
- if (!uuid_str_valid(uuid_str) || !uuid_bin)
- return -EINVAL;
-
- tmp32 = cpu_to_le32(hextoul(uuid_str, NULL));
- memcpy(uuid_bin, &tmp32, 4);
-
- tmp16 = cpu_to_le16(hextoul(uuid_str + 9, NULL));
- memcpy(uuid_bin + 4, &tmp16, 2);
-
- tmp16 = cpu_to_le16(hextoul(uuid_str + 14, NULL));
- memcpy(uuid_bin + 6, &tmp16, 2);
-
- tmp16 = cpu_to_le16(hextoul(uuid_str + 19, NULL));
- memcpy(uuid_bin + 8, &tmp16, 2);
-
- tmp64 = cpu_to_le64(simple_strtoull(uuid_str + 24, NULL, 16));
- memcpy(uuid_bin + 10, &tmp64, 6);
-
- return 0;
-}
-
/*
* uuid_bin_to_str() - convert big endian binary data to string UUID or GUID.
*
# SPDX-License-Identifier: GPL-2.0+
#
# Copyright (c) 2013 Google, Inc
-# Copyright 2022-2023 Arm Limited and/or its affiliates <open-source-office@arm.com>
ifdef CONFIG_HUSH_PARSER
obj-$(CONFIG_CONSOLE_RECORD) += test_echo.o
ifdef CONFIG_SANDBOX
obj-$(CONFIG_CMD_READ) += rw.o
obj-$(CONFIG_CMD_SETEXPR) += setexpr.o
-obj-$(CONFIG_ARM_FFA_TRANSPORT) += armffa.o
endif
obj-$(CONFIG_CMD_TEMPERATURE) += temperature.o
obj-$(CONFIG_CMD_WGET) += wget.o
+++ /dev/null
-// SPDX-License-Identifier: GPL-2.0+
-/*
- * Test for armffa command
- *
- * Copyright 2022-2023 Arm Limited and/or its affiliates <open-source-office@arm.com>
- *
- * Authors:
- * Abdellatif El Khlifi <abdellatif.elkhlifi@arm.com>
- */
-
-#include <common.h>
-#include <string.h>
-#include <asm/sandbox_arm_ffa.h>
-#include <dm/test.h>
-#include <test/test.h>
-#include <test/ut.h>
-
-/* Basic test of 'armffa' command */
-static int dm_test_armffa_cmd(struct unit_test_state *uts)
-{
- /* armffa getpart <UUID> */
- ut_assertok(run_command("armffa getpart " SANDBOX_SERVICE1_UUID, 0));
-
- /* armffa ping <ID> */
- ut_assertok(run_commandf("armffa ping 0x%x", SANDBOX_SP1_ID));
-
- /* armffa devlist */
- ut_assertok(run_command("armffa devlist", 0));
-
- return 0;
-}
-
-DM_TEST(dm_test_armffa_cmd, UT_TESTF_SCAN_FDT | UT_TESTF_CONSOLE_REC);
# SPDX-License-Identifier: GPL-2.0+
#
# Copyright (c) 2013 Google, Inc
-# Copyright 2022-2023 Arm Limited and/or its affiliates <open-source-office@arm.com>
+# Copyright 2023 Arm Limited and/or its affiliates <open-source-office@arm.com>
obj-$(CONFIG_UT_DM) += test-dm.o
obj-$(CONFIG_ACPI_PMC) += pmc.o
obj-$(CONFIG_DM_PMIC) += pmic.o
obj-$(CONFIG_DM_PWM) += pwm.o
-obj-$(CONFIG_ARM_FFA_TRANSPORT) += ffa.o
obj-$(CONFIG_QFW) += qfw.o
obj-$(CONFIG_RAM) += ram.o
obj-y += regmap.o
+++ /dev/null
-// 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);
obj-$(CONFIG_GETOPT) += getopt.o
obj-$(CONFIG_CRC8) += test_crc8.o
obj-$(CONFIG_UT_LIB_CRYPT) += test_crypt.o
-obj-$(CONFIG_LIB_UUID) += uuid.o
else
obj-$(CONFIG_SANDBOX) += kconfig_spl.o
endif
+++ /dev/null
-// 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 <uuid.h>
-#include <test/lib.h>
-#include <test/test.h>
-#include <test/ut.h>
-
-/* test UUID */
-#define TEST_SVC_UUID "ed32d533-4209-99e6-2d72-cdd998a79cc0"
-
-#define UUID_SIZE 16
-
-/* The UUID binary data (little-endian format) */
-static const u8 ref_uuid_bin[UUID_SIZE] = {
- 0x33, 0xd5, 0x32, 0xed,
- 0x09, 0x42, 0xe6, 0x99,
- 0x72, 0x2d, 0xc0, 0x9c,
- 0xa7, 0x98, 0xd9, 0xcd
-};
-
-static int lib_test_uuid_to_le(struct unit_test_state *uts)
-{
- const char *uuid_str = TEST_SVC_UUID;
- u8 ret_uuid_bin[UUID_SIZE] = {0};
-
- ut_assertok(uuid_str_to_le_bin(uuid_str, ret_uuid_bin));
- ut_asserteq_mem(ref_uuid_bin, ret_uuid_bin, UUID_SIZE);
-
- return 0;
-}
-
-LIB_TEST(lib_test_uuid_to_le, 0);
projects / platform / kernel / u-boot.git / commitdiff