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The hab_rvt_failsafe() callback according to the HABv4 documentation: "This function provides a safe path when image authentication has failed and all possible boot paths have been exhausted. It is intended for use by post-ROM boot stage components, via the ROM Vector Table." Once invoked the part will drop down to its BootROM USB recovery mode. Should it be the case that the part is in secure boot mode - only an appropriately signed binary will be accepted by the ROM and subsequently executed. Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org> Cc: Stefano Babic <sbabic@denx.de> Cc: Fabio Estevam <fabio.estevam@nxp.com> Cc: Peng Fan <peng.fan@nxp.com> Cc: Albert Aribaud <albert.u.boot@aribaud.net> Cc: Sven Ebenfeld <sven.ebenfeld@gmail.com> Cc: George McCollister <george.mccollister@gmail.com> Cc: Breno Matheus Lima <brenomatheus@gmail.com> Tested-by: Breno Lima <breno.lima@nxp.com> Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
194 lines
6.9 KiB
C
194 lines
6.9 KiB
C
/*
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* Copyright (C) 2012-2015 Freescale Semiconductor, Inc. All Rights Reserved.
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*
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* SPDX-License-Identifier: GPL-2.0+
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*
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*/
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#ifndef __SECURE_MX6Q_H__
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#define __SECURE_MX6Q_H__
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#include <linux/types.h>
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/*
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* IVT header definitions
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* Security Reference Manual for i.MX 7Dual and 7Solo Applications Processors,
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* Rev. 0, 03/2017
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* Section : 6.7.1.1
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*/
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#define IVT_HEADER_MAGIC 0xD1
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#define IVT_TOTAL_LENGTH 0x20
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#define IVT_HEADER_V1 0x40
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#define IVT_HEADER_V2 0x41
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struct ivt_header {
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uint8_t magic;
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uint16_t length;
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uint8_t version;
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} __attribute__((packed));
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struct ivt {
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struct ivt_header hdr; /* IVT header above */
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uint32_t entry; /* Absolute address of first instruction */
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uint32_t reserved1; /* Reserved should be zero */
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uint32_t dcd; /* Absolute address of the image DCD */
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uint32_t boot; /* Absolute address of the boot data */
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uint32_t self; /* Absolute address of the IVT */
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uint32_t csf; /* Absolute address of the CSF */
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uint32_t reserved2; /* Reserved should be zero */
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};
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/* -------- start of HAB API updates ------------*/
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/* The following are taken from HAB4 SIS */
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/* Status definitions */
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enum hab_status {
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HAB_STS_ANY = 0x00,
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HAB_FAILURE = 0x33,
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HAB_WARNING = 0x69,
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HAB_SUCCESS = 0xf0
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};
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/* Security Configuration definitions */
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enum hab_config {
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HAB_CFG_RETURN = 0x33, /* < Field Return IC */
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HAB_CFG_OPEN = 0xf0, /* < Non-secure IC */
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HAB_CFG_CLOSED = 0xcc /* < Secure IC */
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};
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/* State definitions */
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enum hab_state {
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HAB_STATE_INITIAL = 0x33, /* Initialising state (transitory) */
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HAB_STATE_CHECK = 0x55, /* Check state (non-secure) */
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HAB_STATE_NONSECURE = 0x66, /* Non-secure state */
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HAB_STATE_TRUSTED = 0x99, /* Trusted state */
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HAB_STATE_SECURE = 0xaa, /* Secure state */
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HAB_STATE_FAIL_SOFT = 0xcc, /* Soft fail state */
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HAB_STATE_FAIL_HARD = 0xff, /* Hard fail state (terminal) */
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HAB_STATE_NONE = 0xf0, /* No security state machine */
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HAB_STATE_MAX
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};
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enum hab_reason {
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HAB_RSN_ANY = 0x00, /* Match any reason */
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HAB_ENG_FAIL = 0x30, /* Engine failure */
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HAB_INV_ADDRESS = 0x22, /* Invalid address: access denied */
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HAB_INV_ASSERTION = 0x0c, /* Invalid assertion */
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HAB_INV_CALL = 0x28, /* Function called out of sequence */
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HAB_INV_CERTIFICATE = 0x21, /* Invalid certificate */
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HAB_INV_COMMAND = 0x06, /* Invalid command: command malformed */
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HAB_INV_CSF = 0x11, /* Invalid csf */
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HAB_INV_DCD = 0x27, /* Invalid dcd */
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HAB_INV_INDEX = 0x0f, /* Invalid index: access denied */
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HAB_INV_IVT = 0x05, /* Invalid ivt */
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HAB_INV_KEY = 0x1d, /* Invalid key */
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HAB_INV_RETURN = 0x1e, /* Failed callback function */
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HAB_INV_SIGNATURE = 0x18, /* Invalid signature */
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HAB_INV_SIZE = 0x17, /* Invalid data size */
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HAB_MEM_FAIL = 0x2e, /* Memory failure */
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HAB_OVR_COUNT = 0x2b, /* Expired poll count */
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HAB_OVR_STORAGE = 0x2d, /* Exhausted storage region */
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HAB_UNS_ALGORITHM = 0x12, /* Unsupported algorithm */
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HAB_UNS_COMMAND = 0x03, /* Unsupported command */
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HAB_UNS_ENGINE = 0x0a, /* Unsupported engine */
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HAB_UNS_ITEM = 0x24, /* Unsupported configuration item */
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HAB_UNS_KEY = 0x1b, /* Unsupported key type/parameters */
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HAB_UNS_PROTOCOL = 0x14, /* Unsupported protocol */
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HAB_UNS_STATE = 0x09, /* Unsuitable state */
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HAB_RSN_MAX
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};
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enum hab_context {
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HAB_CTX_ANY = 0x00, /* Match any context */
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HAB_CTX_FAB = 0xff, /* Event logged in hab_fab_test() */
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HAB_CTX_ENTRY = 0xe1, /* Event logged in hab_rvt.entry() */
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HAB_CTX_TARGET = 0x33, /* Event logged in hab_rvt.check_target() */
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HAB_CTX_AUTHENTICATE = 0x0a,/* Logged in hab_rvt.authenticate_image() */
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HAB_CTX_DCD = 0xdd, /* Event logged in hab_rvt.run_dcd() */
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HAB_CTX_CSF = 0xcf, /* Event logged in hab_rvt.run_csf() */
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HAB_CTX_COMMAND = 0xc0, /* Event logged executing csf/dcd command */
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HAB_CTX_AUT_DAT = 0xdb, /* Authenticated data block */
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HAB_CTX_ASSERT = 0xa0, /* Event logged in hab_rvt.assert() */
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HAB_CTX_EXIT = 0xee, /* Event logged in hab_rvt.exit() */
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HAB_CTX_MAX
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};
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enum hab_target {
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HAB_TGT_MEMORY = 0x0f,
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HAB_TGT_PERIPHERAL = 0xf0,
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HAB_TGT_ANY = 0x55,
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};
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struct imx_sec_config_fuse_t {
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int bank;
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int word;
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};
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#if defined(CONFIG_SECURE_BOOT)
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extern struct imx_sec_config_fuse_t const imx_sec_config_fuse;
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#endif
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/*Function prototype description*/
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typedef enum hab_status hab_rvt_report_event_t(enum hab_status, uint32_t,
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uint8_t* , size_t*);
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typedef enum hab_status hab_rvt_report_status_t(enum hab_config *,
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enum hab_state *);
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typedef enum hab_status hab_loader_callback_f_t(void**, size_t*, const void*);
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typedef enum hab_status hab_rvt_entry_t(void);
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typedef enum hab_status hab_rvt_exit_t(void);
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typedef void *hab_rvt_authenticate_image_t(uint8_t, ptrdiff_t,
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void **, size_t *, hab_loader_callback_f_t);
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typedef enum hab_status hab_rvt_check_target_t(enum hab_target, const void *,
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size_t);
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typedef void hab_rvt_failsafe_t(void);
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typedef void hapi_clock_init_t(void);
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#define HAB_ENG_ANY 0x00 /* Select first compatible engine */
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#define HAB_ENG_SCC 0x03 /* Security controller */
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#define HAB_ENG_RTIC 0x05 /* Run-time integrity checker */
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#define HAB_ENG_SAHARA 0x06 /* Crypto accelerator */
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#define HAB_ENG_CSU 0x0a /* Central Security Unit */
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#define HAB_ENG_SRTC 0x0c /* Secure clock */
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#define HAB_ENG_DCP 0x1b /* Data Co-Processor */
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#define HAB_ENG_CAAM 0x1d /* CAAM */
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#define HAB_ENG_SNVS 0x1e /* Secure Non-Volatile Storage */
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#define HAB_ENG_OCOTP 0x21 /* Fuse controller */
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#define HAB_ENG_DTCP 0x22 /* DTCP co-processor */
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#define HAB_ENG_ROM 0x36 /* Protected ROM area */
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#define HAB_ENG_HDCP 0x24 /* HDCP co-processor */
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#define HAB_ENG_RTL 0x77 /* RTL simulation engine */
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#define HAB_ENG_SW 0xff /* Software engine */
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#ifdef CONFIG_ROM_UNIFIED_SECTIONS
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#define HAB_RVT_BASE 0x00000100
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#else
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#define HAB_RVT_BASE 0x00000094
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#endif
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#define HAB_RVT_ENTRY (*(uint32_t *)(HAB_RVT_BASE + 0x04))
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#define HAB_RVT_EXIT (*(uint32_t *)(HAB_RVT_BASE + 0x08))
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#define HAB_RVT_CHECK_TARGET (*(uint32_t *)(HAB_RVT_BASE + 0x0C))
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#define HAB_RVT_AUTHENTICATE_IMAGE (*(uint32_t *)(HAB_RVT_BASE + 0x10))
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#define HAB_RVT_REPORT_EVENT (*(uint32_t *)(HAB_RVT_BASE + 0x20))
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#define HAB_RVT_REPORT_STATUS (*(uint32_t *)(HAB_RVT_BASE + 0x24))
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#define HAB_RVT_FAILSAFE (*(uint32_t *)(HAB_RVT_BASE + 0x28))
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#define HAB_RVT_REPORT_EVENT_NEW (*(uint32_t *)0x000000B8)
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#define HAB_RVT_REPORT_STATUS_NEW (*(uint32_t *)0x000000BC)
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#define HAB_RVT_AUTHENTICATE_IMAGE_NEW (*(uint32_t *)0x000000A8)
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#define HAB_RVT_ENTRY_NEW (*(uint32_t *)0x0000009C)
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#define HAB_RVT_EXIT_NEW (*(uint32_t *)0x000000A0)
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#define HAB_CID_ROM 0 /**< ROM Caller ID */
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#define HAB_CID_UBOOT 1 /**< UBOOT Caller ID*/
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#define IVT_SIZE 0x20
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#define CSF_PAD_SIZE 0x2000
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/* ----------- end of HAB API updates ------------*/
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int imx_hab_authenticate_image(uint32_t ddr_start, uint32_t image_size,
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uint32_t ivt_offset);
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bool imx_hab_is_enabled(void);
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#endif
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