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arm_ffa: introduce sandbox FF-A support
Emulate Secure World's FF-A ABIs and allow testing U-Boot FF-A support Features of the sandbox FF-A support: - Introduce an FF-A emulator - Introduce an FF-A device driver for FF-A comms with emulated Secure World - Provides test methods allowing to read the status of the inspected ABIs The sandbox FF-A emulator supports only 64-bit direct messaging. Signed-off-by: Abdellatif El Khlifi <abdellatif.elkhlifi@arm.com> Reviewed-by: Simon Glass <sjg@chromium.org> Cc: Tom Rini <trini@konsulko.com> Cc: Ilias Apalodimas <ilias.apalodimas@linaro.org> Cc: Jens Wiklander <jens.wiklander@linaro.org> Cc: Heinrich Schuchardt <xypron.glpk@gmx.de>
This commit is contained in:
Abdellatif El Khlifi
Tom Rini
parent
39d383bdac
commit
a09852d862
15 changed files with 1081 additions and 22 deletions
72
arch/sandbox/include/asm/sandbox_arm_ffa.h
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72
arch/sandbox/include/asm/sandbox_arm_ffa.h
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/* SPDX-License-Identifier: GPL-2.0+ */
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/*
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* Copyright 2022-2023 Arm Limited and/or its affiliates <open-source-office@arm.com>
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*
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* Authors:
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* Abdellatif El Khlifi <abdellatif.elkhlifi@arm.com>
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*/
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#ifndef __SANDBOX_ARM_FFA_H
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#define __SANDBOX_ARM_FFA_H
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#include <arm_ffa.h>
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/*
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* This header provides public sandbox FF-A emulator declarations
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* and declarations needed by FF-A sandbox clients
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*/
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/* UUIDs strings of the emulated services */
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#define SANDBOX_SERVICE1_UUID "ed32d533-4209-99e6-2d72-cdd998a79cc0"
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#define SANDBOX_SERVICE2_UUID "ed32d544-4209-99e6-2d72-cdd998a79cc0"
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/* IDs of the emulated secure partitions (SPs) */
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#define SANDBOX_SP1_ID 0x1245
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#define SANDBOX_SP2_ID 0x9836
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#define SANDBOX_SP3_ID 0x6452
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#define SANDBOX_SP4_ID 0x7814
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/* Invalid service UUID (no matching SP) */
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#define SANDBOX_SERVICE3_UUID "55d532ed-0942-e699-722d-c09ca798d9cd"
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/* Invalid service UUID (invalid UUID string format) */
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#define SANDBOX_SERVICE4_UUID "32ed-0942-e699-722d-c09ca798d9cd"
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/* Number of valid services */
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#define SANDBOX_SP_COUNT_PER_VALID_SERVICE 2
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/**
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* struct ffa_sandbox_data - query ABI state data structure
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* @data0_size: size of the first argument
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* @data0: pointer to the first argument
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* @data1_size>: size of the second argument
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* @data1: pointer to the second argument
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*
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* Used to pass various types of data with different sizes between
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* the test cases and the sandbox emulator.
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* The data is for querying FF-A ABIs state.
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*/
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struct ffa_sandbox_data {
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u32 data0_size; /* size of the first argument */
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void *data0; /* pointer to the first argument */
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u32 data1_size; /* size of the second argument */
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void *data1; /* pointer to the second argument */
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};
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/* The sandbox FF-A emulator public functions */
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/**
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* sandbox_query_ffa_emul_state() - Inspect the FF-A ABIs
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* @queried_func_id: The FF-A function to be queried
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* @func_data: Pointer to the FF-A function arguments container structure
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*
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* Query the status of FF-A ABI specified in the input argument.
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*
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* Return:
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*
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* 0 on success. Otherwise, failure
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*/
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int sandbox_query_ffa_emul_state(u32 queried_func_id,
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struct ffa_sandbox_data *func_data);
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#endif
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121
arch/sandbox/include/asm/sandbox_arm_ffa_priv.h
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121
arch/sandbox/include/asm/sandbox_arm_ffa_priv.h
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/* SPDX-License-Identifier: GPL-2.0+ */
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/*
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* Copyright 2022-2023 Arm Limited and/or its affiliates <open-source-office@arm.com>
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*
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* Authors:
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* Abdellatif El Khlifi <abdellatif.elkhlifi@arm.com>
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*/
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#ifndef __SANDBOX_ARM_FFA_PRV_H
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#define __SANDBOX_ARM_FFA_PRV_H
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#include <arm_ffa_priv.h>
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/* This header is exclusively used by the Sandbox FF-A driver and emulator */
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/* Non-secure physical FF-A instance */
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#define NS_PHYS_ENDPOINT_ID (0)
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#define GET_NS_PHYS_ENDPOINT_ID_MASK GENMASK(31, 16)
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#define GET_NS_PHYS_ENDPOINT_ID(x) \
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((u16)(FIELD_GET(GET_NS_PHYS_ENDPOINT_ID_MASK, (x))))
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/* Helper macro for reading the destination partition ID */
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#define GET_DST_SP_ID_MASK GENMASK(15, 0)
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#define GET_DST_SP_ID(x) \
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((u16)(FIELD_GET(GET_DST_SP_ID_MASK, (x))))
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/* Helper macro for setting the source partition ID */
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#define PREP_SRC_SP_ID_MASK GENMASK(31, 16)
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#define PREP_SRC_SP_ID(x) \
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(FIELD_PREP(PREP_SRC_SP_ID_MASK, (x)))
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/* Helper macro for setting the destination endpoint ID */
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#define PREP_NS_PHYS_ENDPOINT_ID_MASK GENMASK(15, 0)
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#define PREP_NS_PHYS_ENDPOINT_ID(x) \
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(FIELD_PREP(PREP_NS_PHYS_ENDPOINT_ID_MASK, (x)))
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/* RX/TX buffers minimum size */
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#define RXTX_BUFFERS_MIN_SIZE (RXTX_4K)
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#define RXTX_BUFFERS_MIN_PAGES (1)
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/* MBZ registers info */
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/* x1-x7 MBZ */
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#define FFA_X1X7_MBZ_CNT (7)
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#define FFA_X1X7_MBZ_REG_START (&res->a1)
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/* x4-x7 MBZ */
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#define FFA_X4X7_MBZ_CNT (4)
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#define FFA_X4X7_MBZ_REG_START (&res->a4)
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/* x3-x7 MBZ */
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#define FFA_X3X7_MBZ_CNT (5)
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#define FFA_X3_MBZ_REG_START (&res->a3)
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/* number of emulated FF-A secure partitions (SPs) */
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#define SANDBOX_PARTITIONS_CNT (4)
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/* Binary data of the emulated services UUIDs */
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/* service 1 UUID binary data (little-endian format) */
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#define SANDBOX_SERVICE1_UUID_A1 0xed32d533
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#define SANDBOX_SERVICE1_UUID_A2 0x99e64209
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#define SANDBOX_SERVICE1_UUID_A3 0x9cc02d72
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#define SANDBOX_SERVICE1_UUID_A4 0xcdd998a7
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/* service 2 UUID binary data (little-endian format) */
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#define SANDBOX_SERVICE2_UUID_A1 0xed32d544
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#define SANDBOX_SERVICE2_UUID_A2 0x99e64209
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#define SANDBOX_SERVICE2_UUID_A3 0x9cc02d72
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#define SANDBOX_SERVICE2_UUID_A4 0xcdd998a7
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/**
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* struct ffa_rxtxpair_info - structure hosting the RX/TX buffers flags
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* @rxbuf_owned: RX buffer ownership flag (the owner is non secure world)
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* @rxbuf_mapped: RX buffer mapping flag
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* @txbuf_owned TX buffer ownership flag
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* @txbuf_mapped: TX buffer mapping flag
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* @rxtx_buf_size: RX/TX buffers size
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*
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* Hosts the ownership/mapping flags of the RX/TX buffers
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* When a buffer is owned/mapped its corresponding flag is set to 1 otherwise 0.
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*/
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struct ffa_rxtxpair_info {
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u8 rxbuf_owned;
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u8 rxbuf_mapped;
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u8 txbuf_owned;
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u8 txbuf_mapped;
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u32 rxtx_buf_size;
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};
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/**
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* struct sandbox_ffa_emul - emulator data
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*
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* @fwk_version: FF-A framework version
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* @id: u-boot endpoint ID
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* @partitions: The partitions descriptors structure
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* @pair: The RX/TX buffers pair
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* @pair_info: The RX/TX buffers pair flags and size
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* @test_ffa_data: The data of the FF-A bus under test
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*
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* Hosts all the emulated secure world data.
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*/
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struct sandbox_ffa_emul {
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u32 fwk_version;
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u16 id;
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struct ffa_partitions partitions;
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struct ffa_rxtxpair pair;
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struct ffa_rxtxpair_info pair_info;
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};
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/**
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* ffa_emul_find() - Finds the FF-A emulator
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* @dev: the sandbox FF-A device (sandbox-arm-ffa)
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* @emulp: the FF-A emulator device (sandbox-ffa-emul)
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* Return:
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* 0 on success. Otherwise, failure
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*/
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int ffa_emul_find(struct udevice *dev, struct udevice **emulp);
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#endif
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