diff options
| -rw-r--r-- | cmd/Kconfig | 14 | ||||
| -rw-r--r-- | cmd/Makefile | 2 | ||||
| -rw-r--r-- | cmd/smccc.c | 71 |
3 files changed, 87 insertions, 0 deletions
diff --git a/cmd/Kconfig b/cmd/Kconfig index 43240317cad..ae49b824715 100644 --- a/cmd/Kconfig +++ b/cmd/Kconfig @@ -1445,6 +1445,20 @@ config CMD_HASH saved to memory or to an environment variable. It is also possible to verify a hash against data in memory. +config CMD_HVC + bool "Support the 'hvc' command" + depends on ARM_SMCCC + help + Allows issuing Hypervisor Calls (HVCs). Mostly useful for + development and testing. + +config CMD_SMC + bool "Support the 'smc' command" + depends on ARM_SMCCC + help + Allows issuing Secure Monitor Calls (SMCs). Mostly useful for + development and testing. + config HASH_VERIFY bool "hash -v" depends on CMD_HASH diff --git a/cmd/Makefile b/cmd/Makefile index 9695309cc2b..d7349023a44 100644 --- a/cmd/Makefile +++ b/cmd/Makefile @@ -60,6 +60,7 @@ obj-$(CONFIG_CMD_FS_GENERIC) += fs.o obj-$(CONFIG_CMD_FUSE) += fuse.o obj-$(CONFIG_CMD_GETTIME) += gettime.o obj-$(CONFIG_CMD_GPIO) += gpio.o +obj-$(CONFIG_CMD_HVC) += smccc.o obj-$(CONFIG_CMD_I2C) += i2c.o obj-$(CONFIG_CMD_IOTRACE) += iotrace.o obj-$(CONFIG_CMD_HASH) += hash.o @@ -112,6 +113,7 @@ obj-$(CONFIG_CMD_SHA1SUM) += sha1sum.o obj-$(CONFIG_CMD_SETEXPR) += setexpr.o obj-$(CONFIG_CMD_SPI) += spi.o obj-$(CONFIG_CMD_STRINGS) += strings.o +obj-$(CONFIG_CMD_SMC) += smccc.o obj-$(CONFIG_CMD_TERMINAL) += terminal.o obj-$(CONFIG_CMD_TIME) += time.o obj-$(CONFIG_CMD_TRACE) += trace.o diff --git a/cmd/smccc.c b/cmd/smccc.c new file mode 100644 index 00000000000..8b1475c2fe0 --- /dev/null +++ b/cmd/smccc.c @@ -0,0 +1,71 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Copyright 2018 + * Michalis Pappas <mpappas@fastmail.fm> + */ +#include <asm/psci.h> +#include <common.h> +#include <command.h> +#include <linux/arm-smccc.h> +#include <linux/compiler.h> +#include <linux/psci.h> + +static int do_call(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) +{ + struct arm_smccc_res res; + + unsigned long fid; + + unsigned long a1; + unsigned long a2; + unsigned long a3; + unsigned long a4; + unsigned long a5; + unsigned long a6; + unsigned long a7; + + if (argc < 2) + return CMD_RET_USAGE; + + fid = simple_strtoul(argv[1], NULL, 16); + + a1 = argc > 2 ? simple_strtoul(argv[2], NULL, 16) : 0; + a2 = argc > 3 ? simple_strtoul(argv[3], NULL, 16) : 0; + a3 = argc > 4 ? simple_strtoul(argv[4], NULL, 16) : 0; + a4 = argc > 5 ? simple_strtoul(argv[5], NULL, 16) : 0; + a5 = argc > 6 ? simple_strtoul(argv[6], NULL, 16) : 0; + a6 = argc > 7 ? simple_strtoul(argv[7], NULL, 16) : 0; + a7 = argc > 8 ? simple_strtoul(argv[8], NULL, 16) : 0; + + if (!strcmp(argv[0], "smc")) + arm_smccc_smc(fid, a1, a2, a3, a4, a5, a6, a7, &res); + else + arm_smccc_hvc(fid, a1, a2, a3, a4, a5, a6, a7, &res); + + printf("Res: %ld %ld %ld %ld\n", res.a0, res.a1, res.a2, res.a3); + + return 0; +} + +#ifdef CONFIG_CMD_SMC +U_BOOT_CMD( + smc, 8, 2, do_call, + "Issue a Secure Monitor Call", + "<fid> [arg1 ... arg6] [id]\n" + " - fid Function ID\n" + " - arg SMC arguments, passed to X1-X6 (default to zero)\n" + " - id Secure OS ID / Session ID, passed to W7 (defaults to zero)\n" +); +#endif + +#ifdef CONFIG_CMD_HVC +U_BOOT_CMD( + hvc, 8, 2, do_call, + "Issue a Hypervisor Call", + "<fid> [arg1...arg7] [id]\n" + " - fid Function ID\n" + " - arg HVC arguments, passed to X1-X6 (default to zero)\n" + " - id Session ID, passed to W7 (defaults to zero)\n" +); +#endif + |