Andrew Geissler | ea144b03 | 2023-01-27 16:03:57 -0600 | [diff] [blame^] | 1 | From 6d28dcdc36ad87b6987c7f920e06165c74eca59d Mon Sep 17 00:00:00 2001 |
Patrick Williams | 8dd6848 | 2022-10-04 07:57:18 -0500 | [diff] [blame] | 2 | From: Abdellatif El Khlifi <abdellatif.elkhlifi@arm.com> |
Andrew Geissler | ea144b03 | 2023-01-27 16:03:57 -0600 | [diff] [blame^] | 3 | Date: Tue, 29 Nov 2022 14:44:36 +0000 |
| 4 | Subject: [PATCH 06/25] arm_ffa: introduce the FF-A Sandbox driver |
Patrick Williams | 8dd6848 | 2022-10-04 07:57:18 -0500 | [diff] [blame] | 5 | |
| 6 | Provide a Sandbox driver to emulate the FF-A ABIs |
| 7 | |
| 8 | The emulated ABIs are those supported by the FF-A core driver |
| 9 | and according to FF-A specification v1.0. |
| 10 | |
| 11 | The Sandbox driver provides operations allowing the test |
| 12 | application to read the status of all the inspected ABIs |
| 13 | and perform functional tests based on that. |
| 14 | |
Andrew Geissler | ea144b03 | 2023-01-27 16:03:57 -0600 | [diff] [blame^] | 15 | sandbox driver supports only 64-bit direct messaging. |
| 16 | |
Patrick Williams | 8dd6848 | 2022-10-04 07:57:18 -0500 | [diff] [blame] | 17 | Signed-off-by: Abdellatif El Khlifi <abdellatif.elkhlifi@arm.com> |
Andrew Geissler | ea144b03 | 2023-01-27 16:03:57 -0600 | [diff] [blame^] | 18 | Cc: Tom Rini <trini@konsulko.com> |
| 19 | Cc: Simon Glass <sjg@chromium.org> |
| 20 | Cc: Ilias Apalodimas <ilias.apalodimas@linaro.org> |
| 21 | Cc: Jens Wiklander <jens.wiklander@linaro.org> |
| 22 | Upstream-Status: Submitted [cover letter: https://lore.kernel.org/all/20221122131751.22747-1-abdellatif.elkhlifi@arm.com/] |
Patrick Williams | 8dd6848 | 2022-10-04 07:57:18 -0500 | [diff] [blame] | 23 | |
| 24 | Changelog: |
| 25 | =============== |
| 26 | |
Andrew Geissler | ea144b03 | 2023-01-27 16:03:57 -0600 | [diff] [blame^] | 27 | v8: update ffa_bus_prvdata_get() to return a pointer rather than |
| 28 | a pointer address |
| 29 | |
| 30 | v7: state that sandbox driver supports only 64-bit direct messaging |
| 31 | |
Patrick Williams | 8dd6848 | 2022-10-04 07:57:18 -0500 | [diff] [blame] | 32 | v4: align sandbox driver with the new FF-A driver interfaces |
Andrew Geissler | ea144b03 | 2023-01-27 16:03:57 -0600 | [diff] [blame^] | 33 | and new way of error handling |
Patrick Williams | 8dd6848 | 2022-10-04 07:57:18 -0500 | [diff] [blame] | 34 | |
| 35 | v1: introduce the sandbox driver |
Andrew Geissler | ea144b03 | 2023-01-27 16:03:57 -0600 | [diff] [blame^] | 36 | --- |
Patrick Williams | 8dd6848 | 2022-10-04 07:57:18 -0500 | [diff] [blame] | 37 | MAINTAINERS | 1 + |
Patrick Williams | 8dd6848 | 2022-10-04 07:57:18 -0500 | [diff] [blame] | 38 | configs/sandbox64_defconfig | 2 + |
| 39 | configs/sandbox_defconfig | 2 + |
| 40 | doc/arch/sandbox.rst | 1 + |
Andrew Geissler | ea144b03 | 2023-01-27 16:03:57 -0600 | [diff] [blame^] | 41 | drivers/firmware/arm-ffa/Kconfig | 9 +- |
Patrick Williams | 8dd6848 | 2022-10-04 07:57:18 -0500 | [diff] [blame] | 42 | drivers/firmware/arm-ffa/Makefile | 1 + |
| 43 | drivers/firmware/arm-ffa/arm_ffa_prv.h | 15 +- |
Andrew Geissler | ea144b03 | 2023-01-27 16:03:57 -0600 | [diff] [blame^] | 44 | drivers/firmware/arm-ffa/core.c | 22 +- |
Patrick Williams | 8dd6848 | 2022-10-04 07:57:18 -0500 | [diff] [blame] | 45 | drivers/firmware/arm-ffa/sandbox.c | 659 ++++++++++++++++++ |
| 46 | .../firmware/arm-ffa/sandbox_arm_ffa_prv.h | 144 ++++ |
| 47 | include/arm_ffa.h | 2 +- |
| 48 | include/sandbox_arm_ffa.h | 91 +++ |
| 49 | lib/efi_loader/efi_boottime.c | 2 +- |
Andrew Geissler | ea144b03 | 2023-01-27 16:03:57 -0600 | [diff] [blame^] | 50 | 13 files changed, 938 insertions(+), 13 deletions(-) |
Patrick Williams | 8dd6848 | 2022-10-04 07:57:18 -0500 | [diff] [blame] | 51 | create mode 100644 drivers/firmware/arm-ffa/sandbox.c |
| 52 | create mode 100644 drivers/firmware/arm-ffa/sandbox_arm_ffa_prv.h |
| 53 | create mode 100644 include/sandbox_arm_ffa.h |
| 54 | |
| 55 | diff --git a/MAINTAINERS b/MAINTAINERS |
Andrew Geissler | ea144b03 | 2023-01-27 16:03:57 -0600 | [diff] [blame^] | 56 | index d50bdddea8..23cebbd526 100644 |
Patrick Williams | 8dd6848 | 2022-10-04 07:57:18 -0500 | [diff] [blame] | 57 | --- a/MAINTAINERS |
| 58 | +++ b/MAINTAINERS |
Andrew Geissler | ea144b03 | 2023-01-27 16:03:57 -0600 | [diff] [blame^] | 59 | @@ -255,6 +255,7 @@ F: cmd/armffa.c |
| 60 | F: doc/arch/arm64.ffa.rst |
Patrick Williams | 8dd6848 | 2022-10-04 07:57:18 -0500 | [diff] [blame] | 61 | F: drivers/firmware/arm-ffa/ |
| 62 | F: include/arm_ffa.h |
| 63 | +F: include/sandbox_arm_ffa.h |
| 64 | |
| 65 | ARM FREESCALE IMX |
| 66 | M: Stefano Babic <sbabic@denx.de> |
Patrick Williams | 8dd6848 | 2022-10-04 07:57:18 -0500 | [diff] [blame] | 67 | diff --git a/configs/sandbox64_defconfig b/configs/sandbox64_defconfig |
Andrew Geissler | ea144b03 | 2023-01-27 16:03:57 -0600 | [diff] [blame^] | 68 | index 290d1506c2..36e6448968 100644 |
Patrick Williams | 8dd6848 | 2022-10-04 07:57:18 -0500 | [diff] [blame] | 69 | --- a/configs/sandbox64_defconfig |
| 70 | +++ b/configs/sandbox64_defconfig |
Andrew Geissler | ea144b03 | 2023-01-27 16:03:57 -0600 | [diff] [blame^] | 71 | @@ -248,3 +248,5 @@ CONFIG_TEST_FDTDEC=y |
Patrick Williams | 8dd6848 | 2022-10-04 07:57:18 -0500 | [diff] [blame] | 72 | CONFIG_UNIT_TEST=y |
| 73 | CONFIG_UT_TIME=y |
| 74 | CONFIG_UT_DM=y |
| 75 | +CONFIG_ARM_FFA_TRANSPORT=y |
| 76 | +CONFIG_SANDBOX_FFA=y |
| 77 | \ No newline at end of file |
| 78 | diff --git a/configs/sandbox_defconfig b/configs/sandbox_defconfig |
Andrew Geissler | ea144b03 | 2023-01-27 16:03:57 -0600 | [diff] [blame^] | 79 | index ab5d3f19bf..8bf3848788 100644 |
Patrick Williams | 8dd6848 | 2022-10-04 07:57:18 -0500 | [diff] [blame] | 80 | --- a/configs/sandbox_defconfig |
| 81 | +++ b/configs/sandbox_defconfig |
Andrew Geissler | ea144b03 | 2023-01-27 16:03:57 -0600 | [diff] [blame^] | 82 | @@ -328,3 +328,5 @@ CONFIG_TEST_FDTDEC=y |
Patrick Williams | 8dd6848 | 2022-10-04 07:57:18 -0500 | [diff] [blame] | 83 | CONFIG_UNIT_TEST=y |
| 84 | CONFIG_UT_TIME=y |
| 85 | CONFIG_UT_DM=y |
| 86 | +CONFIG_ARM_FFA_TRANSPORT=y |
| 87 | +CONFIG_SANDBOX_FFA=y |
| 88 | \ No newline at end of file |
| 89 | diff --git a/doc/arch/sandbox.rst b/doc/arch/sandbox.rst |
| 90 | index 068d4a3be4..5d7e1b2c48 100644 |
| 91 | --- a/doc/arch/sandbox.rst |
| 92 | +++ b/doc/arch/sandbox.rst |
| 93 | @@ -203,6 +203,7 @@ Supported Drivers |
| 94 | |
| 95 | U-Boot sandbox supports these emulations: |
| 96 | |
| 97 | +- Arm FF-A |
| 98 | - Block devices |
| 99 | - Chrome OS EC |
| 100 | - GPIO |
| 101 | diff --git a/drivers/firmware/arm-ffa/Kconfig b/drivers/firmware/arm-ffa/Kconfig |
Andrew Geissler | ea144b03 | 2023-01-27 16:03:57 -0600 | [diff] [blame^] | 102 | index be4df89d23..b86f16d778 100644 |
Patrick Williams | 8dd6848 | 2022-10-04 07:57:18 -0500 | [diff] [blame] | 103 | --- a/drivers/firmware/arm-ffa/Kconfig |
| 104 | +++ b/drivers/firmware/arm-ffa/Kconfig |
| 105 | @@ -2,8 +2,8 @@ |
| 106 | |
| 107 | config ARM_FFA_TRANSPORT |
| 108 | bool "Enable Arm Firmware Framework for Armv8-A driver" |
| 109 | - depends on DM && ARM64 |
| 110 | - select ARM_SMCCC |
| 111 | + depends on DM && (ARM64 || SANDBOX) |
| 112 | + select ARM_SMCCC if !SANDBOX |
| 113 | select CMD_ARMFFA |
| 114 | select LIB_UUID |
| 115 | select DEVRES |
Andrew Geissler | ea144b03 | 2023-01-27 16:03:57 -0600 | [diff] [blame^] | 116 | @@ -29,3 +29,8 @@ config ARM_FFA_TRANSPORT |
| 117 | |
| 118 | For more details about the FF-A driver, please refer to doc/arch/arm64.ffa.rst |
| 119 | |
Patrick Williams | 8dd6848 | 2022-10-04 07:57:18 -0500 | [diff] [blame] | 120 | +config SANDBOX_FFA |
| 121 | + bool "FF-A Sandbox driver" |
| 122 | + depends on ARM_FFA_TRANSPORT && SANDBOX |
| 123 | + help |
| 124 | + This emulates the FF-A handling under Sandbox and allows to test the FF-A driver |
| 125 | diff --git a/drivers/firmware/arm-ffa/Makefile b/drivers/firmware/arm-ffa/Makefile |
Andrew Geissler | ea144b03 | 2023-01-27 16:03:57 -0600 | [diff] [blame^] | 126 | index 043a8915be..0d21d6b47a 100644 |
Patrick Williams | 8dd6848 | 2022-10-04 07:57:18 -0500 | [diff] [blame] | 127 | --- a/drivers/firmware/arm-ffa/Makefile |
| 128 | +++ b/drivers/firmware/arm-ffa/Makefile |
Andrew Geissler | ea144b03 | 2023-01-27 16:03:57 -0600 | [diff] [blame^] | 129 | @@ -4,3 +4,4 @@ |
| 130 | # Abdellatif El Khlifi, Arm Limited, abdellatif.elkhlifi@arm.com. |
Patrick Williams | 8dd6848 | 2022-10-04 07:57:18 -0500 | [diff] [blame] | 131 | |
| 132 | obj-y += arm-ffa-uclass.o core.o |
Patrick Williams | 8dd6848 | 2022-10-04 07:57:18 -0500 | [diff] [blame] | 133 | +obj-$(CONFIG_SANDBOX_FFA) += sandbox.o |
| 134 | diff --git a/drivers/firmware/arm-ffa/arm_ffa_prv.h b/drivers/firmware/arm-ffa/arm_ffa_prv.h |
Andrew Geissler | ea144b03 | 2023-01-27 16:03:57 -0600 | [diff] [blame^] | 135 | index 4eea7dc036..bbc8b87069 100644 |
Patrick Williams | 8dd6848 | 2022-10-04 07:57:18 -0500 | [diff] [blame] | 136 | --- a/drivers/firmware/arm-ffa/arm_ffa_prv.h |
| 137 | +++ b/drivers/firmware/arm-ffa/arm_ffa_prv.h |
| 138 | @@ -19,6 +19,16 @@ |
| 139 | /* FF-A core driver name */ |
| 140 | #define FFA_DRV_NAME "arm_ffa" |
| 141 | |
| 142 | +/* The FF-A SMC function definitions */ |
| 143 | + |
| 144 | +#if CONFIG_IS_ENABLED(SANDBOX_FFA) |
| 145 | +#include "sandbox_arm_ffa.h" |
| 146 | +#else |
| 147 | +typedef struct arm_smccc_1_2_regs ffa_value_t; |
| 148 | +#endif |
| 149 | + |
| 150 | +typedef void (*invoke_ffa_fn_t)(ffa_value_t args, ffa_value_t *res); |
| 151 | + |
| 152 | /* FF-A driver version definitions */ |
| 153 | |
| 154 | #define MAJOR_VERSION_MASK GENMASK(30, 16) |
Andrew Geissler | ea144b03 | 2023-01-27 16:03:57 -0600 | [diff] [blame^] | 155 | @@ -103,11 +113,6 @@ struct ffa_abi_errmap { |
Patrick Williams | 8dd6848 | 2022-10-04 07:57:18 -0500 | [diff] [blame] | 156 | #define FFA_ERRMAP_COUNT (FFA_LAST_ID - FFA_FIRST_ID + 1) |
| 157 | #define FFA_ID_TO_ERRMAP_ID(ffa_id) ((ffa_id) - FFA_FIRST_ID) |
| 158 | |
| 159 | -/* The FF-A SMC function definitions */ |
| 160 | - |
| 161 | -typedef struct arm_smccc_1_2_regs ffa_value_t; |
| 162 | -typedef void (*invoke_ffa_fn_t)(ffa_value_t args, ffa_value_t *res); |
| 163 | - |
| 164 | /* |
| 165 | * struct ffa_partition_uuid - 16 bytes UUID transmitted by FFA_PARTITION_INFO_GET |
| 166 | * @a1-4: 32-bit words access to the UUID data |
| 167 | diff --git a/drivers/firmware/arm-ffa/core.c b/drivers/firmware/arm-ffa/core.c |
Andrew Geissler | ea144b03 | 2023-01-27 16:03:57 -0600 | [diff] [blame^] | 168 | index 0b1f8e6a07..560603b28b 100644 |
Patrick Williams | 8dd6848 | 2022-10-04 07:57:18 -0500 | [diff] [blame] | 169 | --- a/drivers/firmware/arm-ffa/core.c |
| 170 | +++ b/drivers/firmware/arm-ffa/core.c |
Andrew Geissler | ea144b03 | 2023-01-27 16:03:57 -0600 | [diff] [blame^] | 171 | @@ -1072,6 +1072,7 @@ static int ffa_msg_send_direct_req(struct udevice *dev, u16 dst_part_id, |
Patrick Williams | 8dd6848 | 2022-10-04 07:57:18 -0500 | [diff] [blame] | 172 | return ffa_to_std_errno(ffa_errno); |
| 173 | } |
| 174 | |
| 175 | +#if !CONFIG_IS_ENABLED(SANDBOX_FFA) |
| 176 | /** |
| 177 | * __arm_ffa_fn_smc - SMC wrapper |
| 178 | * @args: FF-A ABI arguments to be copied to Xn registers |
Andrew Geissler | ea144b03 | 2023-01-27 16:03:57 -0600 | [diff] [blame^] | 179 | @@ -1085,6 +1086,7 @@ void __arm_ffa_fn_smc(ffa_value_t args, ffa_value_t *res) |
Patrick Williams | 8dd6848 | 2022-10-04 07:57:18 -0500 | [diff] [blame] | 180 | { |
| 181 | arm_smccc_1_2_smc(&args, res); |
| 182 | } |
| 183 | +#endif |
| 184 | |
| 185 | /** |
| 186 | * ffa_set_smc_conduit - Set the SMC conduit |
Andrew Geissler | ea144b03 | 2023-01-27 16:03:57 -0600 | [diff] [blame^] | 187 | @@ -1098,7 +1100,12 @@ void __arm_ffa_fn_smc(ffa_value_t args, ffa_value_t *res) |
Patrick Williams | 8dd6848 | 2022-10-04 07:57:18 -0500 | [diff] [blame] | 188 | */ |
| 189 | static int ffa_set_smc_conduit(void) |
| 190 | { |
| 191 | - ffa_priv_data->invoke_ffa_fn = __arm_ffa_fn_smc; |
| 192 | +#if CONFIG_IS_ENABLED(SANDBOX_FFA) |
| 193 | + ffa_priv_data->invoke_ffa_fn = sandbox_arm_ffa_smccc_smc; |
| 194 | + ffa_info("Using SMC emulation"); |
| 195 | +#else |
| 196 | + ffa_priv_data->invoke_ffa_fn = __arm_ffa_fn_smc; |
| 197 | +#endif |
| 198 | |
| 199 | if (!ffa_priv_data->invoke_ffa_fn) { |
| 200 | ffa_err("failure to set the invoke function"); |
Andrew Geissler | ea144b03 | 2023-01-27 16:03:57 -0600 | [diff] [blame^] | 201 | @@ -1275,17 +1282,18 @@ struct ffa_prvdata *ffa_bus_prvdata_get(void) |
Patrick Williams | 8dd6848 | 2022-10-04 07:57:18 -0500 | [diff] [blame] | 202 | } |
| 203 | |
| 204 | /** |
Andrew Geissler | ea144b03 | 2023-01-27 16:03:57 -0600 | [diff] [blame^] | 205 | - * ffa_bus_discover - discover FF-A bus and probe arm_ffa device |
Patrick Williams | 8dd6848 | 2022-10-04 07:57:18 -0500 | [diff] [blame] | 206 | + * ffa_bus_discover - discover FF-A bus and probe arm_ffa and sandbox_arm_ffa devices |
Andrew Geissler | ea144b03 | 2023-01-27 16:03:57 -0600 | [diff] [blame^] | 207 | * @pdev: the address of a device pointer (to be filled when the arm_ffa bus device is created |
| 208 | * successfully) |
Patrick Williams | 8dd6848 | 2022-10-04 07:57:18 -0500 | [diff] [blame] | 209 | * |
Andrew Geissler | ea144b03 | 2023-01-27 16:03:57 -0600 | [diff] [blame^] | 210 | * This function makes sure the FF-A bus is discoverable. |
| 211 | - * When probing succeeds FF-A discovery is done. The arm_ffa device is ready to use. |
| 212 | + * When probing succeeds FF-A discovery is done. The arm_ffa and sandbox_arm_ffa devices |
| 213 | + * are ready to use. |
Patrick Williams | 8dd6848 | 2022-10-04 07:57:18 -0500 | [diff] [blame] | 214 | * |
| 215 | * When the bus was already discovered successfully the discovery will not run again. |
| 216 | * |
| 217 | * Arm FF-A transport is implemented through arm_ffa u-boot device managing the FF-A |
| 218 | - * communication. |
| 219 | + * communication. In Sandbox mode sandbox_arm_ffa is used to test arm_ffa driver. |
| 220 | * All FF-A clients should use the arm_ffa device to use the FF-A transport. |
| 221 | * |
| 222 | * Return: |
Andrew Geissler | ea144b03 | 2023-01-27 16:03:57 -0600 | [diff] [blame^] | 223 | @@ -1299,6 +1307,12 @@ int ffa_bus_discover(struct udevice **pdev) |
| 224 | if (!ffa_priv_data) { |
| 225 | ret = ffa_device_get(pdev); |
Patrick Williams | 8dd6848 | 2022-10-04 07:57:18 -0500 | [diff] [blame] | 226 | |
| 227 | +#if CONFIG_IS_ENABLED(SANDBOX_FFA) |
| 228 | + if (ret == 0) |
| 229 | + ret = sandbox_ffa_device_get(); |
| 230 | +#endif |
| 231 | + } |
| 232 | + |
| 233 | return ret; |
| 234 | } |
| 235 | |
| 236 | diff --git a/drivers/firmware/arm-ffa/sandbox.c b/drivers/firmware/arm-ffa/sandbox.c |
| 237 | new file mode 100644 |
Andrew Geissler | ea144b03 | 2023-01-27 16:03:57 -0600 | [diff] [blame^] | 238 | index 0000000000..16f1ca926e |
Patrick Williams | 8dd6848 | 2022-10-04 07:57:18 -0500 | [diff] [blame] | 239 | --- /dev/null |
| 240 | +++ b/drivers/firmware/arm-ffa/sandbox.c |
| 241 | @@ -0,0 +1,659 @@ |
| 242 | +// SPDX-License-Identifier: GPL-2.0+ |
| 243 | +/* |
| 244 | + * (C) Copyright 2022 ARM Limited |
| 245 | + * Abdellatif El Khlifi <abdellatif.elkhlifi@arm.com> |
| 246 | + */ |
| 247 | + |
| 248 | +#include "sandbox_arm_ffa_prv.h" |
| 249 | +#include <asm/global_data.h> |
| 250 | +#include <common.h> |
| 251 | +#include <dm.h> |
| 252 | +#include <dm/device-internal.h> |
| 253 | +#include <dm/root.h> |
| 254 | +#include <linux/errno.h> |
| 255 | +#include <linux/sizes.h> |
| 256 | +#include <mapmem.h> |
| 257 | +#include <string.h> |
| 258 | + |
| 259 | +DECLARE_GLOBAL_DATA_PTR; |
| 260 | + |
| 261 | +/** |
| 262 | + * The device private data structure containing all the emulated secure world data |
| 263 | + */ |
| 264 | +static struct sandbox_ffa_prvdata sandbox_ffa_priv_data = {0}; |
| 265 | + |
| 266 | +/* The partitions (SPs) table */ |
| 267 | +static struct ffa_partition_desc sandbox_partitions[SANDBOX_PARTITIONS_CNT] = { |
| 268 | + { |
| 269 | + .info = { .id = SANDBOX_SP1_ID, .exec_ctxt = 0x5687, .properties = 0x89325621 }, |
| 270 | + .sp_uuid = { |
| 271 | + .a1 = SANDBOX_SERVICE1_UUID_A1, |
| 272 | + .a2 = SANDBOX_SERVICE1_UUID_A2, |
| 273 | + .a3 = SANDBOX_SERVICE1_UUID_A3, |
| 274 | + .a4 = SANDBOX_SERVICE1_UUID_A4, |
| 275 | + } |
| 276 | + }, |
| 277 | + { |
| 278 | + .info = { .id = SANDBOX_SP2_ID, .exec_ctxt = 0x9587, .properties = 0x45325621 }, |
| 279 | + .sp_uuid = { |
| 280 | + .a1 = SANDBOX_SERVICE2_UUID_A1, |
| 281 | + .a2 = SANDBOX_SERVICE2_UUID_A2, |
| 282 | + .a3 = SANDBOX_SERVICE2_UUID_A3, |
| 283 | + .a4 = SANDBOX_SERVICE2_UUID_A4, |
| 284 | + } |
| 285 | + }, |
| 286 | + { |
| 287 | + .info = { .id = SANDBOX_SP3_ID, .exec_ctxt = 0x7687, .properties = 0x23325621 }, |
| 288 | + .sp_uuid = { |
| 289 | + .a1 = SANDBOX_SERVICE1_UUID_A1, |
| 290 | + .a2 = SANDBOX_SERVICE1_UUID_A2, |
| 291 | + .a3 = SANDBOX_SERVICE1_UUID_A3, |
| 292 | + .a4 = SANDBOX_SERVICE1_UUID_A4, |
| 293 | + } |
| 294 | + }, |
| 295 | + { |
| 296 | + .info = { .id = SANDBOX_SP4_ID, .exec_ctxt = 0x1487, .properties = 0x70325621 }, |
| 297 | + .sp_uuid = { |
| 298 | + .a1 = SANDBOX_SERVICE2_UUID_A1, |
| 299 | + .a2 = SANDBOX_SERVICE2_UUID_A2, |
| 300 | + .a3 = SANDBOX_SERVICE2_UUID_A3, |
| 301 | + .a4 = SANDBOX_SERVICE2_UUID_A4, |
| 302 | + } |
| 303 | + } |
| 304 | + |
| 305 | +}; |
| 306 | + |
| 307 | +/* |
| 308 | + * Driver functions |
| 309 | + */ |
| 310 | + |
| 311 | +/** |
| 312 | + * sandbox_ffa_get_device - probes the sandbox_arm_ffa device |
| 313 | + * |
| 314 | + * This function makes sure the sandbox_arm_ffa device is probed |
| 315 | + * This function makes sure the sandbox_arm_ffa device is |
| 316 | + * created, bound to this driver, probed and ready to use. |
| 317 | + * |
| 318 | + * sandbox_arm_ffa depends on arm_ffa device. This dependency is |
| 319 | + * handled by ffa_bus_discover function. arm_ffa is probed first then |
| 320 | + * sandbox_arm_ffa. |
| 321 | + * |
| 322 | + * Return: |
| 323 | + * |
| 324 | + * 0 on success. Otherwise, failure |
| 325 | + */ |
| 326 | +int sandbox_ffa_device_get(void) |
| 327 | +{ |
| 328 | + int ret; |
| 329 | + |
| 330 | + if (sandbox_ffa_priv_data.dev) |
| 331 | + return 0; |
| 332 | + |
| 333 | + ret = device_bind(dm_root(), |
| 334 | + DM_DRIVER_GET(sandbox_arm_ffa), |
| 335 | + FFA_SANDBOX_DRV_NAME, |
| 336 | + NULL, |
| 337 | + ofnode_null(), |
| 338 | + &sandbox_ffa_priv_data.dev); |
| 339 | + if (ret) { |
| 340 | + sandbox_ffa_priv_data.dev = NULL; |
| 341 | + return ret; |
| 342 | + } |
| 343 | + |
| 344 | + ret = device_probe(sandbox_ffa_priv_data.dev); |
| 345 | + if (ret) { |
| 346 | + ffa_err("[Sandbox] can not probe the device"); |
| 347 | + device_unbind(sandbox_ffa_priv_data.dev); |
| 348 | + sandbox_ffa_priv_data.dev = NULL; |
| 349 | + return ret; |
| 350 | + } |
| 351 | + |
| 352 | + return 0; |
| 353 | +} |
| 354 | + |
| 355 | +/** |
| 356 | + * sandbox_ffa_version - Emulated FFA_VERSION handler function |
| 357 | + * @{a0-a7} , res: The SMC call arguments and return structure. |
| 358 | + * |
| 359 | + * This is the function that emulates FFA_VERSION FF-A function. |
| 360 | + * |
| 361 | + * Return: |
| 362 | + * |
| 363 | + * 0 on success. Otherwise, failure |
| 364 | + */ |
| 365 | +SANDBOX_SMC_FFA_ABI(ffa_version) |
| 366 | +{ |
| 367 | + sandbox_ffa_priv_data.fwk_version = FFA_VERSION_1_0; |
| 368 | + res->a0 = sandbox_ffa_priv_data.fwk_version; |
| 369 | + |
| 370 | + /* x1-x7 MBZ */ |
| 371 | + memset(FFA_X1X7_MBZ_REG_START, 0, FFA_X1X7_MBZ_CNT * sizeof(unsigned long)); |
| 372 | + |
| 373 | + return 0; |
| 374 | +} |
| 375 | + |
| 376 | +/** |
| 377 | + * sandbox_ffa_id_get - Emulated FFA_ID_GET handler function |
| 378 | + * @{a0-a7} , res: The SMC call arguments and return structure. |
| 379 | + * |
| 380 | + * This is the function that emulates FFA_ID_GET FF-A function. |
| 381 | + * |
| 382 | + * Return: |
| 383 | + * |
| 384 | + * 0 on success. Otherwise, failure |
| 385 | + */ |
| 386 | +SANDBOX_SMC_FFA_ABI(ffa_id_get) |
| 387 | +{ |
| 388 | + res->a0 = FFA_SMC_32(FFA_SUCCESS); |
| 389 | + res->a1 = 0; |
| 390 | + |
| 391 | + sandbox_ffa_priv_data.id = NS_PHYS_ENDPOINT_ID; |
| 392 | + res->a2 = sandbox_ffa_priv_data.id; |
| 393 | + |
| 394 | + /* x3-x7 MBZ */ |
| 395 | + memset(FFA_X3_MBZ_REG_START, 0, FFA_X3X7_MBZ_CNT * sizeof(unsigned long)); |
| 396 | + |
| 397 | + return 0; |
| 398 | +} |
| 399 | + |
| 400 | +/** |
| 401 | + * sandbox_ffa_features - Emulated FFA_FEATURES handler function |
| 402 | + * @{a0-a7} , res: The SMC call arguments and return structure. |
| 403 | + * |
| 404 | + * This is the function that emulates FFA_FEATURES FF-A function. |
| 405 | + * |
| 406 | + * Return: |
| 407 | + * |
| 408 | + * 0 on success. Otherwise, failure |
| 409 | + */ |
| 410 | +SANDBOX_SMC_FFA_ABI(ffa_features) |
| 411 | +{ |
| 412 | + if (pargs->a1 == FFA_SMC_64(FFA_RXTX_MAP)) { |
| 413 | + res->a0 = FFA_SMC_32(FFA_SUCCESS); |
| 414 | + res->a2 = RXTX_BUFFERS_MIN_SIZE; |
| 415 | + res->a3 = 0; |
| 416 | + /* x4-x7 MBZ */ |
| 417 | + memset(FFA_X4X7_MBZ_REG_START, |
| 418 | + 0, FFA_X4X7_MBZ_CNT * sizeof(unsigned long)); |
| 419 | + } else { |
| 420 | + res->a0 = FFA_SMC_32(FFA_ERROR); |
| 421 | + res->a2 = FFA_ERR_STAT_NOT_SUPPORTED; |
| 422 | + /* x3-x7 MBZ */ |
| 423 | + memset(FFA_X3_MBZ_REG_START, |
| 424 | + 0, FFA_X3X7_MBZ_CNT * sizeof(unsigned long)); |
| 425 | + ffa_err("[Sandbox] FF-A interface 0x%lx not implemented", pargs->a1); |
| 426 | + } |
| 427 | + |
| 428 | + res->a1 = 0; |
| 429 | + |
| 430 | + return 0; |
| 431 | +} |
| 432 | + |
| 433 | +/** |
| 434 | + * sandbox_ffa_partition_info_get - Emulated FFA_PARTITION_INFO_GET handler function |
| 435 | + * @{a0-a7} , res: The SMC call arguments and return structure. |
| 436 | + * |
| 437 | + * This is the function that emulates FFA_PARTITION_INFO_GET FF-A function. |
| 438 | + * |
| 439 | + * Return: |
| 440 | + * |
| 441 | + * 0 on success. Otherwise, failure |
| 442 | + */ |
| 443 | +SANDBOX_SMC_FFA_ABI(ffa_partition_info_get) |
| 444 | +{ |
| 445 | + struct ffa_partition_info *rxbuf_desc_info = NULL; |
| 446 | + u32 descs_cnt; |
| 447 | + u32 descs_size_bytes; |
| 448 | + |
| 449 | + res->a0 = FFA_SMC_32(FFA_ERROR); |
| 450 | + |
| 451 | + if (!sandbox_ffa_priv_data.pair.rxbuf) { |
| 452 | + res->a2 = FFA_ERR_STAT_DENIED; |
| 453 | + goto cleanup; |
| 454 | + } |
| 455 | + |
| 456 | + if (sandbox_ffa_priv_data.pair_info.rxbuf_owned) { |
| 457 | + res->a2 = FFA_ERR_STAT_BUSY; |
| 458 | + goto cleanup; |
| 459 | + } |
| 460 | + |
| 461 | + if (!sandbox_ffa_priv_data.partitions.descs) { |
| 462 | + sandbox_ffa_priv_data.partitions.descs = sandbox_partitions; |
| 463 | + sandbox_ffa_priv_data.partitions.count = SANDBOX_PARTITIONS_CNT; |
| 464 | + } |
| 465 | + |
| 466 | + descs_size_bytes = SANDBOX_PARTITIONS_CNT * sizeof(struct ffa_partition_desc); |
| 467 | + |
| 468 | + /* Abort if the RX buffer size is smaller than the descriptors buffer size */ |
| 469 | + if ((sandbox_ffa_priv_data.pair_info.rxtx_buf_size * SZ_4K) < descs_size_bytes) { |
| 470 | + res->a2 = FFA_ERR_STAT_NO_MEMORY; |
| 471 | + goto cleanup; |
| 472 | + } |
| 473 | + |
| 474 | + rxbuf_desc_info = (struct ffa_partition_info *)sandbox_ffa_priv_data.pair.rxbuf; |
| 475 | + |
| 476 | + /* No UUID specified. Return the information of all partitions */ |
| 477 | + if (!pargs->a1 && !pargs->a2 && !pargs->a3 && !pargs->a4) { |
| 478 | + for (descs_cnt = 0 ; descs_cnt < SANDBOX_PARTITIONS_CNT ; descs_cnt++) |
| 479 | + *(rxbuf_desc_info++) = |
| 480 | + sandbox_ffa_priv_data.partitions.descs[descs_cnt].info; |
| 481 | + |
| 482 | + res->a0 = FFA_SMC_32(FFA_SUCCESS); |
| 483 | + res->a2 = SANDBOX_PARTITIONS_CNT; |
| 484 | + /* transfer ownership to the consumer: the non secure world */ |
| 485 | + sandbox_ffa_priv_data.pair_info.rxbuf_owned = 1; |
| 486 | + |
| 487 | + goto cleanup; |
| 488 | + } |
| 489 | + |
| 490 | + /* |
| 491 | + * A UUID is specified. Return the information of all partitions matching |
| 492 | + * the UUID |
| 493 | + */ |
| 494 | + |
| 495 | + for (descs_cnt = 0 ; descs_cnt < SANDBOX_PARTITIONS_CNT ; descs_cnt++) |
| 496 | + if (pargs->a1 == sandbox_ffa_priv_data.partitions.descs[descs_cnt].sp_uuid.a1 && |
| 497 | + pargs->a2 == sandbox_ffa_priv_data.partitions.descs[descs_cnt].sp_uuid.a2 && |
| 498 | + pargs->a3 == sandbox_ffa_priv_data.partitions.descs[descs_cnt].sp_uuid.a3 && |
| 499 | + pargs->a4 == sandbox_ffa_priv_data.partitions.descs[descs_cnt].sp_uuid.a4) { |
| 500 | + *(rxbuf_desc_info++) = |
| 501 | + sandbox_ffa_priv_data.partitions.descs[descs_cnt].info; |
| 502 | + } |
| 503 | + |
| 504 | + if (rxbuf_desc_info != ((struct ffa_partition_info *)sandbox_ffa_priv_data.pair.rxbuf)) { |
| 505 | + res->a0 = FFA_SMC_32(FFA_SUCCESS); |
| 506 | + /* store the partitions count */ |
| 507 | + res->a2 = (unsigned long) |
| 508 | + (rxbuf_desc_info - (struct ffa_partition_info *) |
| 509 | + sandbox_ffa_priv_data.pair.rxbuf); |
| 510 | + |
| 511 | + /* transfer ownership to the consumer: the non secure world */ |
| 512 | + sandbox_ffa_priv_data.pair_info.rxbuf_owned = 1; |
| 513 | + } else { |
| 514 | + /* Unrecognized UUID */ |
| 515 | + res->a2 = FFA_ERR_STAT_INVALID_PARAMETERS; |
| 516 | + } |
| 517 | + |
| 518 | +cleanup: |
| 519 | + |
| 520 | + ffa_err("[Sandbox] FFA_PARTITION_INFO_GET (%ld)", res->a2); |
| 521 | + |
| 522 | + res->a1 = 0; |
| 523 | + |
| 524 | + /* x3-x7 MBZ */ |
| 525 | + memset(FFA_X3_MBZ_REG_START, 0, FFA_X3X7_MBZ_CNT * sizeof(unsigned long)); |
| 526 | + |
| 527 | + return 0; |
| 528 | +} |
| 529 | + |
| 530 | +/** |
| 531 | + * sandbox_ffa_rxtx_map - Emulated FFA_RXTX_MAP handler function |
| 532 | + * @{a0-a7} , res: The SMC call arguments and return structure. |
| 533 | + * |
| 534 | + * This is the function that emulates FFA_RXTX_MAP FF-A function. |
| 535 | + * |
| 536 | + * Return: |
| 537 | + * |
| 538 | + * 0 on success. Otherwise, failure |
| 539 | + */ |
| 540 | +SANDBOX_SMC_FFA_ABI(ffa_rxtx_map) |
| 541 | +{ |
| 542 | + res->a0 = FFA_SMC_32(FFA_ERROR); |
| 543 | + |
| 544 | + if (sandbox_ffa_priv_data.pair.txbuf && sandbox_ffa_priv_data.pair.rxbuf) { |
| 545 | + res->a2 = FFA_ERR_STAT_DENIED; |
| 546 | + goto feedback; |
| 547 | + } |
| 548 | + |
| 549 | + if (pargs->a3 >= RXTX_BUFFERS_MIN_PAGES && pargs->a1 && pargs->a2) { |
| 550 | + sandbox_ffa_priv_data.pair.txbuf = pargs->a1; |
| 551 | + sandbox_ffa_priv_data.pair.rxbuf = pargs->a2; |
| 552 | + sandbox_ffa_priv_data.pair_info.rxtx_buf_size = pargs->a3; |
| 553 | + sandbox_ffa_priv_data.pair_info.rxbuf_mapped = 1; |
| 554 | + res->a0 = FFA_SMC_32(FFA_SUCCESS); |
| 555 | + res->a2 = 0; |
| 556 | + goto feedback; |
| 557 | + } |
| 558 | + |
| 559 | + if (!pargs->a1 || !pargs->a2) |
| 560 | + res->a2 = FFA_ERR_STAT_INVALID_PARAMETERS; |
| 561 | + else |
| 562 | + res->a2 = FFA_ERR_STAT_NO_MEMORY; |
| 563 | + |
| 564 | + ffa_err("[Sandbox] error in FFA_RXTX_MAP arguments (%d)", (int)res->a2); |
| 565 | + |
| 566 | +feedback: |
| 567 | + |
| 568 | + res->a1 = 0; |
| 569 | + |
| 570 | + /* x3-x7 MBZ */ |
| 571 | + memset(FFA_X3_MBZ_REG_START, |
| 572 | + 0, FFA_X3X7_MBZ_CNT * sizeof(unsigned long)); |
| 573 | + |
| 574 | + return 0; |
| 575 | +} |
| 576 | + |
| 577 | +/** |
| 578 | + * sandbox_ffa_rxtx_unmap - Emulated FFA_RXTX_UNMAP handler function |
| 579 | + * @{a0-a7} , res: The SMC call arguments and return structure. |
| 580 | + * |
| 581 | + * This is the function that emulates FFA_RXTX_UNMAP FF-A function. |
| 582 | + * |
| 583 | + * Return: |
| 584 | + * |
| 585 | + * 0 on success. Otherwise, failure |
| 586 | + */ |
| 587 | +SANDBOX_SMC_FFA_ABI(ffa_rxtx_unmap) |
| 588 | +{ |
| 589 | + res->a0 = FFA_SMC_32(FFA_ERROR); |
| 590 | + res->a2 = FFA_ERR_STAT_INVALID_PARAMETERS; |
| 591 | + |
| 592 | + if (GET_NS_PHYS_ENDPOINT_ID(pargs->a1) != sandbox_ffa_priv_data.id) |
| 593 | + goto feedback; |
| 594 | + |
| 595 | + if (sandbox_ffa_priv_data.pair.txbuf && sandbox_ffa_priv_data.pair.rxbuf) { |
| 596 | + sandbox_ffa_priv_data.pair.txbuf = 0; |
| 597 | + sandbox_ffa_priv_data.pair.rxbuf = 0; |
| 598 | + sandbox_ffa_priv_data.pair_info.rxtx_buf_size = 0; |
| 599 | + sandbox_ffa_priv_data.pair_info.rxbuf_mapped = 0; |
| 600 | + res->a0 = FFA_SMC_32(FFA_SUCCESS); |
| 601 | + res->a2 = 0; |
| 602 | + goto feedback; |
| 603 | + } |
| 604 | + |
| 605 | + ffa_err("[Sandbox] No buffer pair registered on behalf of the caller"); |
| 606 | + |
| 607 | +feedback: |
| 608 | + |
| 609 | + res->a1 = 0; |
| 610 | + |
| 611 | + /* x3-x7 MBZ */ |
| 612 | + memset(FFA_X3_MBZ_REG_START, |
| 613 | + 0, FFA_X3X7_MBZ_CNT * sizeof(unsigned long)); |
| 614 | + |
| 615 | + return 0; |
| 616 | +} |
| 617 | + |
| 618 | +/** |
| 619 | + * sandbox_ffa_rx_release - Emulated FFA_RX_RELEASE handler function |
| 620 | + * @{a0-a7} , res: The SMC call arguments and return structure. |
| 621 | + * |
| 622 | + * This is the function that emulates FFA_RX_RELEASE FF-A function. |
| 623 | + * |
| 624 | + * Return: |
| 625 | + * |
| 626 | + * 0 on success. Otherwise, failure |
| 627 | + */ |
| 628 | +SANDBOX_SMC_FFA_ABI(ffa_rx_release) |
| 629 | +{ |
| 630 | + if (!sandbox_ffa_priv_data.pair_info.rxbuf_owned) { |
| 631 | + res->a0 = FFA_SMC_32(FFA_ERROR); |
| 632 | + res->a2 = FFA_ERR_STAT_DENIED; |
| 633 | + } else { |
| 634 | + sandbox_ffa_priv_data.pair_info.rxbuf_owned = 0; |
| 635 | + res->a0 = FFA_SMC_32(FFA_SUCCESS); |
| 636 | + res->a2 = 0; |
| 637 | + } |
| 638 | + |
| 639 | + res->a1 = 0; |
| 640 | + |
| 641 | + /* x3-x7 MBZ */ |
| 642 | + memset(FFA_X3_MBZ_REG_START, |
| 643 | + 0, FFA_X3X7_MBZ_CNT * sizeof(unsigned long)); |
| 644 | + |
| 645 | + return 0; |
| 646 | +} |
| 647 | + |
| 648 | +/** |
| 649 | + * sandbox_ffa_sp_valid - Checks SP validity |
| 650 | + * @part_id: partition ID to check |
| 651 | + * |
| 652 | + * This is the function searches the input ID in the descriptors table. |
| 653 | + * |
| 654 | + * Return: |
| 655 | + * |
| 656 | + * 1 on success (Partition found). Otherwise, failure |
| 657 | + */ |
| 658 | +static int sandbox_ffa_sp_valid(u16 part_id) |
| 659 | +{ |
| 660 | + u32 descs_cnt; |
| 661 | + |
| 662 | + for (descs_cnt = 0 ; descs_cnt < SANDBOX_PARTITIONS_CNT ; descs_cnt++) |
| 663 | + if (sandbox_ffa_priv_data.partitions.descs[descs_cnt].info.id == part_id) |
| 664 | + return 1; |
| 665 | + |
| 666 | + return 0; |
| 667 | +} |
| 668 | + |
| 669 | +/** |
| 670 | + * sandbox_ffa_msg_send_direct_req - Emulated FFA_MSG_SEND_DIRECT_{REQ,RESP} handler function |
| 671 | + * @{a0-a7} , res: The SMC call arguments and return structure. |
| 672 | + * |
| 673 | + * This is the function that emulates FFA_MSG_SEND_DIRECT_{REQ,RESP} |
Andrew Geissler | ea144b03 | 2023-01-27 16:03:57 -0600 | [diff] [blame^] | 674 | + * FF-A functions. Only SMC 64-bit is supported in Sandbox. |
Patrick Williams | 8dd6848 | 2022-10-04 07:57:18 -0500 | [diff] [blame] | 675 | + * |
| 676 | + * Emulating interrupts is not supported. So, FFA_RUN and FFA_INTERRUPT are not supported. |
| 677 | + * In case of success FFA_MSG_SEND_DIRECT_RESP is returned with default pattern data (0xff). |
| 678 | + * |
| 679 | + * Return: |
| 680 | + * |
| 681 | + * 0 on success. Otherwise, failure |
| 682 | + */ |
| 683 | +SANDBOX_SMC_FFA_ABI(ffa_msg_send_direct_req) |
| 684 | +{ |
| 685 | + u16 part_id; |
| 686 | + |
| 687 | + part_id = GET_DST_SP_ID(pargs->a1); |
| 688 | + |
| 689 | + if ((GET_NS_PHYS_ENDPOINT_ID(pargs->a1) != sandbox_ffa_priv_data.id) || |
| 690 | + !sandbox_ffa_sp_valid(part_id) || |
| 691 | + pargs->a2) { |
| 692 | + res->a0 = FFA_SMC_32(FFA_ERROR); |
| 693 | + res->a1 = 0; |
| 694 | + res->a2 = FFA_ERR_STAT_INVALID_PARAMETERS; |
| 695 | + |
| 696 | + /* x3-x7 MBZ */ |
| 697 | + memset(FFA_X3_MBZ_REG_START, |
| 698 | + 0, FFA_X3X7_MBZ_CNT * sizeof(unsigned long)); |
| 699 | + |
| 700 | + return 0; |
| 701 | + } |
| 702 | + |
| 703 | + res->a0 = FFA_SMC_64(FFA_MSG_SEND_DIRECT_RESP); |
| 704 | + |
| 705 | + res->a1 = PREP_SRC_SP_ID(part_id) | |
| 706 | + PREP_NS_PHYS_ENDPOINT_ID(sandbox_ffa_priv_data.id); |
| 707 | + |
| 708 | + res->a2 = 0; |
| 709 | + |
| 710 | + /* |
| 711 | + * return 0xff bytes as a response |
| 712 | + */ |
| 713 | + res->a3 = 0xffffffffffffffff; |
| 714 | + res->a4 = 0xffffffffffffffff; |
| 715 | + res->a5 = 0xffffffffffffffff; |
| 716 | + res->a6 = 0xffffffffffffffff; |
| 717 | + res->a7 = 0xffffffffffffffff; |
| 718 | + |
| 719 | + return 0; |
| 720 | +} |
| 721 | + |
| 722 | +/** |
| 723 | + * sandbox_ffa_get_prv_data - Returns the pointer to FF-A core pivate data |
| 724 | + * @func_data: Pointer to the FF-A function arguments container structure |
| 725 | + * |
| 726 | + * This is the handler that returns the address of the FF-A core pivate data. |
| 727 | + * |
| 728 | + * Return: |
| 729 | + * |
| 730 | + * 0 on success. Otherwise, failure |
| 731 | + */ |
| 732 | +static int sandbox_ffa_get_prv_data(struct ffa_sandbox_data *func_data) |
| 733 | +{ |
| 734 | + if (!func_data) |
| 735 | + return -EINVAL; |
| 736 | + |
Andrew Geissler | ea144b03 | 2023-01-27 16:03:57 -0600 | [diff] [blame^] | 737 | + if (!func_data->data0 || func_data->data0_size != sizeof(struct ffa_prvdata *)) |
Patrick Williams | 8dd6848 | 2022-10-04 07:57:18 -0500 | [diff] [blame] | 738 | + return -EINVAL; |
| 739 | + |
Andrew Geissler | ea144b03 | 2023-01-27 16:03:57 -0600 | [diff] [blame^] | 740 | + if (!func_data->data1 || func_data->data1_size != sizeof(struct sandbox_ffa_prvdata *)) |
Patrick Williams | 8dd6848 | 2022-10-04 07:57:18 -0500 | [diff] [blame] | 741 | + return -EINVAL; |
| 742 | + |
Andrew Geissler | ea144b03 | 2023-01-27 16:03:57 -0600 | [diff] [blame^] | 743 | + *((struct ffa_prvdata **)func_data->data0) = ffa_bus_prvdata_get(); |
Patrick Williams | 8dd6848 | 2022-10-04 07:57:18 -0500 | [diff] [blame] | 744 | + *((struct sandbox_ffa_prvdata **)func_data->data1) = &sandbox_ffa_priv_data; |
| 745 | + |
| 746 | + return 0; |
| 747 | +} |
| 748 | + |
| 749 | +/** |
| 750 | + * sandbox_ffa_get_rxbuf_flags - Reading the mapping/ownership flags |
| 751 | + * @queried_func_id: The FF-A function to be queried |
| 752 | + * @func_data: Pointer to the FF-A function arguments container structure |
| 753 | + * |
| 754 | + * This is the handler that queries the status flags of the following emulated ABIs: |
| 755 | + * FFA_RXTX_MAP, FFA_RXTX_UNMAP, FFA_RX_RELEASE |
| 756 | + * |
| 757 | + * Return: |
| 758 | + * |
| 759 | + * 0 on success. Otherwise, failure |
| 760 | + */ |
| 761 | +static int sandbox_ffa_get_rxbuf_flags(u32 queried_func_id, struct ffa_sandbox_data *func_data) |
| 762 | +{ |
| 763 | + if (!func_data) |
| 764 | + return -EINVAL; |
| 765 | + |
| 766 | + if (!func_data->data0 || func_data->data0_size != sizeof(u8)) |
| 767 | + return -EINVAL; |
| 768 | + |
| 769 | + switch (queried_func_id) { |
| 770 | + case FFA_RXTX_MAP: |
| 771 | + case FFA_RXTX_UNMAP: |
| 772 | + *((u8 *)func_data->data0) = sandbox_ffa_priv_data.pair_info.rxbuf_mapped; |
| 773 | + return 0; |
| 774 | + case FFA_RX_RELEASE: |
| 775 | + *((u8 *)func_data->data0) = sandbox_ffa_priv_data.pair_info.rxbuf_owned; |
| 776 | + return 0; |
| 777 | + default: |
| 778 | + ffa_err("[Sandbox] The querried FF-A interface flag (%d) undefined", |
| 779 | + queried_func_id); |
| 780 | + return -EINVAL; |
| 781 | + } |
| 782 | +} |
| 783 | + |
| 784 | +/** |
| 785 | + * sandbox_ffa_query_core_state - The driver dispatcher function |
| 786 | + * @queried_func_id: The FF-A function to be queried |
| 787 | + * @func_data: Pointer to the FF-A function arguments container structure |
| 788 | + * |
| 789 | + * Queries the status of FF-A ABI specified in the input argument. |
| 790 | + * |
| 791 | + * Return: |
| 792 | + * |
| 793 | + * 0 on success. Otherwise, failure |
| 794 | + */ |
| 795 | +int sandbox_ffa_query_core_state(u32 queried_func_id, struct ffa_sandbox_data *func_data) |
| 796 | +{ |
| 797 | + switch (queried_func_id) { |
| 798 | + case FFA_VERSION: |
| 799 | + case FFA_ID_GET: |
| 800 | + case FFA_FEATURES: |
| 801 | + return sandbox_ffa_get_prv_data(func_data); |
| 802 | + case FFA_RXTX_MAP: |
| 803 | + case FFA_RXTX_UNMAP: |
| 804 | + case FFA_RX_RELEASE: |
| 805 | + return sandbox_ffa_get_rxbuf_flags(queried_func_id, func_data); |
| 806 | + default: |
| 807 | + ffa_err("[Sandbox] The querried FF-A interface (%d) undefined", queried_func_id); |
| 808 | + return -EINVAL; |
| 809 | + } |
| 810 | +} |
| 811 | + |
| 812 | +/** |
| 813 | + * sandbox_arm_ffa_smccc_smc - FF-A SMC call emulation |
| 814 | + * @args: the SMC call arguments |
| 815 | + * @res: the SMC call returned data |
| 816 | + * |
| 817 | + * Sandbox driver emulates the FF-A ABIs SMC call using this function. |
| 818 | + * The emulated FF-A ABI is identified and invoked. |
| 819 | + * FF-A emulation is based on the FF-A specification 1.0 |
| 820 | + * |
| 821 | + * Return: |
| 822 | + * |
| 823 | + * 0 on success. Otherwise, failure. |
| 824 | + * FF-A protocol error codes are returned using the registers arguments as described |
| 825 | + * by the specification |
| 826 | + */ |
| 827 | +void sandbox_arm_ffa_smccc_smc(ffa_value_t args, ffa_value_t *res) |
| 828 | +{ |
| 829 | + int ret = 0; |
| 830 | + |
| 831 | + switch (args.a0) { |
| 832 | + case FFA_SMC_32(FFA_VERSION): |
| 833 | + ret = sandbox_ffa_version(&args, res); |
| 834 | + break; |
| 835 | + case FFA_SMC_32(FFA_PARTITION_INFO_GET): |
| 836 | + ret = sandbox_ffa_partition_info_get(&args, res); |
| 837 | + break; |
| 838 | + case FFA_SMC_32(FFA_RXTX_UNMAP): |
| 839 | + ret = sandbox_ffa_rxtx_unmap(&args, res); |
| 840 | + break; |
| 841 | + case FFA_SMC_64(FFA_MSG_SEND_DIRECT_REQ): |
| 842 | + ret = sandbox_ffa_msg_send_direct_req(&args, res); |
| 843 | + break; |
| 844 | + case FFA_SMC_32(FFA_ID_GET): |
| 845 | + ret = sandbox_ffa_id_get(&args, res); |
| 846 | + break; |
| 847 | + case FFA_SMC_32(FFA_FEATURES): |
| 848 | + ret = sandbox_ffa_features(&args, res); |
| 849 | + break; |
| 850 | + case FFA_SMC_64(FFA_RXTX_MAP): |
| 851 | + ret = sandbox_ffa_rxtx_map(&args, res); |
| 852 | + break; |
| 853 | + case FFA_SMC_32(FFA_RX_RELEASE): |
| 854 | + ret = sandbox_ffa_rx_release(&args, res); |
| 855 | + break; |
| 856 | + default: |
| 857 | + ffa_err("[Sandbox] Undefined FF-A interface (0x%lx)", args.a0); |
| 858 | + } |
| 859 | + |
| 860 | + if (ret != 0) |
| 861 | + ffa_err("[Sandbox] FF-A ABI internal failure (%d)", ret); |
| 862 | +} |
| 863 | + |
| 864 | +/** |
| 865 | + * sandbox_ffa_probe - The driver probe function |
| 866 | + * @dev: the sandbox_arm_ffa device |
| 867 | + * |
| 868 | + * Return: |
| 869 | + * |
| 870 | + * 0 on success. Otherwise, failure |
| 871 | + */ |
| 872 | +static int sandbox_ffa_probe(struct udevice *dev) |
| 873 | +{ |
| 874 | + return 0; |
| 875 | +} |
| 876 | + |
| 877 | +/** |
| 878 | + * sandbox_ffa_remove - The driver remove function |
| 879 | + * @dev: the sandbox_arm_ffa device |
| 880 | + * |
| 881 | + * Return: |
| 882 | + * |
| 883 | + * 0 on success. Otherwise, failure |
| 884 | + */ |
| 885 | +static int sandbox_ffa_remove(struct udevice *dev) |
| 886 | +{ |
| 887 | + ffa_info("[Sandbox] removing the device"); |
| 888 | + memset(&sandbox_ffa_priv_data, 0, sizeof(sandbox_ffa_priv_data)); |
| 889 | + return 0; |
| 890 | +} |
| 891 | + |
| 892 | +/** |
| 893 | + * Declaring the sandbox_arm_ffa driver under UCLASS_FFA |
| 894 | + */ |
| 895 | +U_BOOT_DRIVER(sandbox_arm_ffa) = { |
| 896 | + .name = FFA_SANDBOX_DRV_NAME, |
| 897 | + .id = UCLASS_FFA, |
| 898 | + .probe = sandbox_ffa_probe, |
| 899 | + .remove = sandbox_ffa_remove, |
| 900 | +}; |
| 901 | diff --git a/drivers/firmware/arm-ffa/sandbox_arm_ffa_prv.h b/drivers/firmware/arm-ffa/sandbox_arm_ffa_prv.h |
| 902 | new file mode 100644 |
| 903 | index 0000000000..4db57f5092 |
| 904 | --- /dev/null |
| 905 | +++ b/drivers/firmware/arm-ffa/sandbox_arm_ffa_prv.h |
| 906 | @@ -0,0 +1,144 @@ |
| 907 | +/* SPDX-License-Identifier: GPL-2.0+ */ |
| 908 | +/* |
| 909 | + * (C) Copyright 2022 ARM Limited |
| 910 | + * Abdellatif El Khlifi <abdellatif.elkhlifi@arm.com> |
| 911 | + */ |
| 912 | + |
| 913 | +#ifndef __SANDBOX_ARM_FFA_PRV_H |
| 914 | +#define __SANDBOX_ARM_FFA_PRV_H |
| 915 | + |
| 916 | +#include "arm_ffa_prv.h" |
| 917 | +#include <sandbox_arm_ffa.h> |
| 918 | + |
| 919 | +/* |
| 920 | + * This header is private. It is exclusively used by the Sandbox FF-A driver |
| 921 | + */ |
| 922 | + |
| 923 | +/* FF-A core driver name */ |
| 924 | +#define FFA_SANDBOX_DRV_NAME "sandbox_arm_ffa" |
| 925 | + |
| 926 | +/* FF-A ABIs internal error codes (as defined by the spec) */ |
| 927 | + |
| 928 | +#define FFA_ERR_STAT_NOT_SUPPORTED -1 |
| 929 | +#define FFA_ERR_STAT_INVALID_PARAMETERS -2 |
| 930 | +#define FFA_ERR_STAT_NO_MEMORY -3 |
| 931 | +#define FFA_ERR_STAT_BUSY -4 |
| 932 | +#define FFA_ERR_STAT_DENIED -6 |
| 933 | + |
| 934 | +/* Providing Arm SMCCC declarations to sandbox */ |
| 935 | + |
| 936 | +#define ARM_SMCCC_FAST_CALL 1UL |
| 937 | +#define ARM_SMCCC_OWNER_STANDARD 4 |
| 938 | +#define ARM_SMCCC_SMC_32 0 |
| 939 | +#define ARM_SMCCC_SMC_64 1 |
| 940 | +#define ARM_SMCCC_TYPE_SHIFT 31 |
| 941 | +#define ARM_SMCCC_CALL_CONV_SHIFT 30 |
| 942 | +#define ARM_SMCCC_OWNER_MASK 0x3F |
| 943 | +#define ARM_SMCCC_OWNER_SHIFT 24 |
| 944 | +#define ARM_SMCCC_FUNC_MASK 0xFFFF |
| 945 | + |
| 946 | +#define ARM_SMCCC_CALL_VAL(type, calling_convention, owner, func_num) \ |
| 947 | + (((type) << ARM_SMCCC_TYPE_SHIFT) | \ |
| 948 | + ((calling_convention) << ARM_SMCCC_CALL_CONV_SHIFT) | \ |
| 949 | + (((owner) & ARM_SMCCC_OWNER_MASK) << ARM_SMCCC_OWNER_SHIFT) | \ |
| 950 | + ((func_num) & ARM_SMCCC_FUNC_MASK)) |
| 951 | + |
| 952 | +/* Non-secure physical FF-A instance */ |
| 953 | +#define NS_PHYS_ENDPOINT_ID (0) |
| 954 | + |
| 955 | +#define GET_NS_PHYS_ENDPOINT_ID_MASK GENMASK(31, 16) |
| 956 | +#define GET_NS_PHYS_ENDPOINT_ID(x) \ |
| 957 | + ((u16)(FIELD_GET(GET_NS_PHYS_ENDPOINT_ID_MASK, (x)))) |
| 958 | + |
| 959 | +/* Helper macro for reading the destination partition ID */ |
| 960 | +#define GET_DST_SP_ID_MASK GENMASK(15, 0) |
| 961 | +#define GET_DST_SP_ID(x) \ |
| 962 | + ((u16)(FIELD_GET(GET_DST_SP_ID_MASK, (x)))) |
| 963 | + |
| 964 | +/* Helper macro for setting the source partition ID */ |
| 965 | +#define PREP_SRC_SP_ID_MASK GENMASK(31, 16) |
| 966 | +#define PREP_SRC_SP_ID(x) \ |
| 967 | + (FIELD_PREP(PREP_SRC_SP_ID_MASK, (x))) |
| 968 | + |
| 969 | +/* Helper macro for setting the destination endpoint ID */ |
| 970 | +#define PREP_NS_PHYS_ENDPOINT_ID_MASK GENMASK(15, 0) |
| 971 | +#define PREP_NS_PHYS_ENDPOINT_ID(x) \ |
| 972 | + (FIELD_PREP(PREP_NS_PHYS_ENDPOINT_ID_MASK, (x))) |
| 973 | + |
| 974 | +/* RX/TX buffers minimum size */ |
| 975 | +#define RXTX_BUFFERS_MIN_SIZE (RXTX_4K) |
| 976 | +#define RXTX_BUFFERS_MIN_PAGES (1) |
| 977 | + |
| 978 | +/* MBZ registers info */ |
| 979 | + |
| 980 | +/* x1-x7 MBZ */ |
| 981 | +#define FFA_X1X7_MBZ_CNT (7) |
| 982 | +#define FFA_X1X7_MBZ_REG_START (&res->a1) |
| 983 | + |
| 984 | +/* x4-x7 MBZ */ |
| 985 | +#define FFA_X4X7_MBZ_CNT (4) |
| 986 | +#define FFA_X4X7_MBZ_REG_START (&res->a4) |
| 987 | + |
| 988 | +/* x3-x7 MBZ */ |
| 989 | +#define FFA_X3X7_MBZ_CNT (5) |
| 990 | +#define FFA_X3_MBZ_REG_START (&res->a3) |
| 991 | + |
| 992 | +/* secure partitions count */ |
| 993 | +#define SANDBOX_PARTITIONS_CNT (4) |
| 994 | + |
| 995 | +/* service 1 UUID binary data (little-endian format) */ |
| 996 | +#define SANDBOX_SERVICE1_UUID_A1 0xed32d533 |
| 997 | +#define SANDBOX_SERVICE1_UUID_A2 0x99e64209 |
| 998 | +#define SANDBOX_SERVICE1_UUID_A3 0x9cc02d72 |
| 999 | +#define SANDBOX_SERVICE1_UUID_A4 0xcdd998a7 |
| 1000 | + |
| 1001 | +/* service 2 UUID binary data (little-endian format) */ |
| 1002 | +#define SANDBOX_SERVICE2_UUID_A1 0xed32d544 |
| 1003 | +#define SANDBOX_SERVICE2_UUID_A2 0x99e64209 |
| 1004 | +#define SANDBOX_SERVICE2_UUID_A3 0x9cc02d72 |
| 1005 | +#define SANDBOX_SERVICE2_UUID_A4 0xcdd998a7 |
| 1006 | + |
| 1007 | +/** |
| 1008 | + * struct ffa_rxtxpair_info - structure hosting the RX/TX buffers flags |
| 1009 | + * @rxbuf_owned: RX buffer ownership flag (the owner is non secure world: the consumer) |
| 1010 | + * @rxbuf_mapped: RX buffer mapping flag |
| 1011 | + * @txbuf_owned TX buffer ownership flag |
| 1012 | + * @txbuf_mapped: TX buffer mapping flag |
| 1013 | + * @rxtx_buf_size: RX/TX buffers size as set by the FF-A core driver |
| 1014 | + * |
| 1015 | + * Data structure hosting the ownership/mapping flags of the RX/TX buffers |
| 1016 | + * When a buffer is owned/mapped its corresponding flag is set to 1 otherwise 0. |
| 1017 | + */ |
| 1018 | +struct ffa_rxtxpair_info { |
| 1019 | + u8 rxbuf_owned; |
| 1020 | + u8 rxbuf_mapped; |
| 1021 | + u8 txbuf_owned; |
| 1022 | + u8 txbuf_mapped; |
| 1023 | + u32 rxtx_buf_size; |
| 1024 | +}; |
| 1025 | + |
| 1026 | +/** |
| 1027 | + * struct sandbox_ffa_prvdata - the driver private data structure |
| 1028 | + * |
| 1029 | + * @dev: The arm_ffa device under u-boot driver model |
| 1030 | + * @fwk_version: FF-A framework version |
| 1031 | + * @id: u-boot endpoint ID |
| 1032 | + * @partitions: The partitions descriptors structure |
| 1033 | + * @pair: The RX/TX buffers pair |
| 1034 | + * @pair_info: The RX/TX buffers pair flags and size |
| 1035 | + * @conduit: The selected conduit |
| 1036 | + * |
| 1037 | + * The driver data structure hosting all the emulated secure world data. |
| 1038 | + */ |
| 1039 | +struct sandbox_ffa_prvdata { |
| 1040 | + struct udevice *dev; |
| 1041 | + u32 fwk_version; |
| 1042 | + u16 id; |
| 1043 | + struct ffa_partitions partitions; |
| 1044 | + struct ffa_rxtxpair pair; |
| 1045 | + struct ffa_rxtxpair_info pair_info; |
| 1046 | +}; |
| 1047 | + |
| 1048 | +#define SANDBOX_SMC_FFA_ABI(ffabi) static int sandbox_##ffabi(ffa_value_t *pargs, ffa_value_t *res) |
| 1049 | + |
| 1050 | +#endif |
| 1051 | diff --git a/include/arm_ffa.h b/include/arm_ffa.h |
Andrew Geissler | ea144b03 | 2023-01-27 16:03:57 -0600 | [diff] [blame^] | 1052 | index 74b16174c2..b88904fe50 100644 |
Patrick Williams | 8dd6848 | 2022-10-04 07:57:18 -0500 | [diff] [blame] | 1053 | --- a/include/arm_ffa.h |
| 1054 | +++ b/include/arm_ffa.h |
Andrew Geissler | ea144b03 | 2023-01-27 16:03:57 -0600 | [diff] [blame^] | 1055 | @@ -90,7 +90,7 @@ struct ffa_bus_ops { |
| 1056 | const struct ffa_bus_ops *ffa_bus_ops_get(void); |
Patrick Williams | 8dd6848 | 2022-10-04 07:57:18 -0500 | [diff] [blame] | 1057 | |
| 1058 | /** |
| 1059 | - * ffa_bus_discover - discover FF-A bus and probes the arm_ffa device |
| 1060 | + * ffa_bus_discover - discover FF-A bus and probes the arm_ffa and sandbox_arm_ffa devices |
| 1061 | */ |
Andrew Geissler | ea144b03 | 2023-01-27 16:03:57 -0600 | [diff] [blame^] | 1062 | int ffa_bus_discover(struct udevice **pdev); |
Patrick Williams | 8dd6848 | 2022-10-04 07:57:18 -0500 | [diff] [blame] | 1063 | |
| 1064 | diff --git a/include/sandbox_arm_ffa.h b/include/sandbox_arm_ffa.h |
| 1065 | new file mode 100644 |
| 1066 | index 0000000000..d5df16f282 |
| 1067 | --- /dev/null |
| 1068 | +++ b/include/sandbox_arm_ffa.h |
| 1069 | @@ -0,0 +1,91 @@ |
| 1070 | +/* SPDX-License-Identifier: GPL-2.0+ */ |
| 1071 | +/* |
| 1072 | + * (C) Copyright 2022 ARM Limited |
| 1073 | + * Abdellatif El Khlifi <abdellatif.elkhlifi@arm.com> |
| 1074 | + */ |
| 1075 | + |
| 1076 | +#ifndef __SANDBOX_ARM_FFA_H |
| 1077 | +#define __SANDBOX_ARM_FFA_H |
| 1078 | + |
| 1079 | +#include <arm_ffa.h> |
| 1080 | + |
| 1081 | +/** |
| 1082 | + * struct sandbox_smccc_1_2_regs - Arguments for or Results from emulated SMC call |
| 1083 | + * @a0-a17 argument values from registers 0 to 17 |
| 1084 | + */ |
| 1085 | +struct sandbox_smccc_1_2_regs { |
| 1086 | + unsigned long a0; |
| 1087 | + unsigned long a1; |
| 1088 | + unsigned long a2; |
| 1089 | + unsigned long a3; |
| 1090 | + unsigned long a4; |
| 1091 | + unsigned long a5; |
| 1092 | + unsigned long a6; |
| 1093 | + unsigned long a7; |
| 1094 | + unsigned long a8; |
| 1095 | + unsigned long a9; |
| 1096 | + unsigned long a10; |
| 1097 | + unsigned long a11; |
| 1098 | + unsigned long a12; |
| 1099 | + unsigned long a13; |
| 1100 | + unsigned long a14; |
| 1101 | + unsigned long a15; |
| 1102 | + unsigned long a16; |
| 1103 | + unsigned long a17; |
| 1104 | +}; |
| 1105 | + |
| 1106 | +typedef struct sandbox_smccc_1_2_regs ffa_value_t; |
| 1107 | + |
| 1108 | +/* UUIDs of services supported by the sandbox driver */ |
| 1109 | +#define SANDBOX_SERVICE1_UUID "ed32d533-4209-99e6-2d72-cdd998a79cc0" |
| 1110 | +#define SANDBOX_SERVICE2_UUID "ed32d544-4209-99e6-2d72-cdd998a79cc0" |
| 1111 | +#define SANDBOX_SP1_ID 0x1245 |
| 1112 | +#define SANDBOX_SP2_ID 0x9836 |
| 1113 | +#define SANDBOX_SP3_ID 0x6452 |
| 1114 | +#define SANDBOX_SP4_ID 0x7814 |
| 1115 | + |
| 1116 | +/* invalid service UUID (no matching SP) */ |
| 1117 | +#define SANDBOX_SERVICE3_UUID "55d532ed-0942-e699-722d-c09ca798d9cd" |
| 1118 | + |
| 1119 | +/* invalid service UUID (invalid UUID string format) */ |
| 1120 | +#define SANDBOX_SERVICE4_UUID "32ed-0942-e699-722d-c09ca798d9cd" |
| 1121 | + |
| 1122 | +#define SANDBOX_SP_COUNT_PER_VALID_SERVICE 2 |
| 1123 | + |
| 1124 | +/** |
| 1125 | + * struct ffa_sandbox_data - generic data structure used to exchange |
| 1126 | + * data between test cases and the sandbox driver |
| 1127 | + * @data0_size: size of the first argument |
| 1128 | + * @data0: pointer to the first argument |
| 1129 | + * @data1_size>: size of the second argument |
| 1130 | + * @data1: pointer to the second argument |
| 1131 | + * |
| 1132 | + * Using this structure sandbox test cases can pass various types of data with different sizes. |
| 1133 | + */ |
| 1134 | +struct ffa_sandbox_data { |
| 1135 | + u32 data0_size; /* size of the first argument */ |
| 1136 | + void *data0; /* pointer to the first argument */ |
| 1137 | + u32 data1_size; /* size of the second argument */ |
| 1138 | + void *data1; /* pointer to the second argument */ |
| 1139 | +}; |
| 1140 | + |
| 1141 | +/** |
| 1142 | + * The sandbox driver public functions |
| 1143 | + */ |
| 1144 | + |
| 1145 | +/** |
| 1146 | + * sandbox_ffa_query_core_state - Queries the status of FF-A ABIs |
| 1147 | + */ |
| 1148 | +int sandbox_ffa_query_core_state(u32 queried_func_id, struct ffa_sandbox_data *func_data); |
| 1149 | + |
| 1150 | +/** |
| 1151 | + * sandbox_ffa_get_device - create, bind and probe the sandbox_arm_ffa device |
| 1152 | + */ |
| 1153 | +int sandbox_ffa_device_get(void); |
| 1154 | + |
| 1155 | +/** |
| 1156 | + * sandbox_arm_ffa_smccc_smc - FF-A SMC call emulation |
| 1157 | + */ |
| 1158 | +void sandbox_arm_ffa_smccc_smc(ffa_value_t args, ffa_value_t *res); |
| 1159 | + |
| 1160 | +#endif |
| 1161 | diff --git a/lib/efi_loader/efi_boottime.c b/lib/efi_loader/efi_boottime.c |
Andrew Geissler | ea144b03 | 2023-01-27 16:03:57 -0600 | [diff] [blame^] | 1162 | index caa64028be..1099ccc800 100644 |
Patrick Williams | 8dd6848 | 2022-10-04 07:57:18 -0500 | [diff] [blame] | 1163 | --- a/lib/efi_loader/efi_boottime.c |
| 1164 | +++ b/lib/efi_loader/efi_boottime.c |
Andrew Geissler | ea144b03 | 2023-01-27 16:03:57 -0600 | [diff] [blame^] | 1165 | @@ -2185,7 +2185,7 @@ static efi_status_t EFIAPI efi_exit_boot_services(efi_handle_t image_handle, |
Patrick Williams | 8dd6848 | 2022-10-04 07:57:18 -0500 | [diff] [blame] | 1166 | dm_remove_devices_flags(DM_REMOVE_ACTIVE_ALL); |
| 1167 | } |
| 1168 | |
| 1169 | -#if CONFIG_IS_ENABLED(ARM_FFA_TRANSPORT) |
| 1170 | +#if CONFIG_IS_ENABLED(ARM_FFA_TRANSPORT) && !CONFIG_IS_ENABLED(SANDBOX_FFA) |
| 1171 | /* unmap FF-A RX/TX buffers */ |
Andrew Geissler | ea144b03 | 2023-01-27 16:03:57 -0600 | [diff] [blame^] | 1172 | if (ffa_bus_ops_get()->rxtx_unmap(NULL)) |
| 1173 | log_err("Can't unmap FF-A RX/TX buffers\n"); |
Patrick Williams | 8dd6848 | 2022-10-04 07:57:18 -0500 | [diff] [blame] | 1174 | -- |
| 1175 | 2.17.1 |
| 1176 | |