From cd2d46003ce14b21cc323a075caf90012f4cd83d Mon Sep 17 00:00:00 2001 From: Bryan O'Donoghue Date: Fri, 12 Jan 2018 12:40:02 +0000 Subject: arm: imx: hab: Add IVT header definitions The various i.MX BootROMs containing the High Assurance Boot (HAB) block rely on a data structure called the Image Vector Table (IVT) to describe to the BootROM where to locate various data-structures used by HAB during authentication. This patch adds a definition of the IVT header for use in later patches, where we will break the current incorrect dependence on fixed offsets in favour of an IVT described parsing of incoming binaries. Signed-off-by: Bryan O'Donoghue Cc: Stefano Babic Cc: Fabio Estevam Cc: Peng Fan Cc: Albert Aribaud Cc: Sven Ebenfeld Cc: George McCollister Cc: Breno Matheus Lima Tested-by: Breno Lima Reviewed-by: Fabio Estevam --- arch/arm/include/asm/mach-imx/hab.h | 28 ++++++++++++++++++++++++++++ 1 file changed, 28 insertions(+) (limited to 'arch/arm') diff --git a/arch/arm/include/asm/mach-imx/hab.h b/arch/arm/include/asm/mach-imx/hab.h index b2a80319eb..28cde38462 100644 --- a/arch/arm/include/asm/mach-imx/hab.h +++ b/arch/arm/include/asm/mach-imx/hab.h @@ -10,6 +10,34 @@ #include +/* + * IVT header definitions + * Security Reference Manual for i.MX 7Dual and 7Solo Applications Processors, + * Rev. 0, 03/2017 + * Section : 6.7.1.1 + */ +#define IVT_HEADER_MAGIC 0xD1 +#define IVT_TOTAL_LENGTH 0x20 +#define IVT_HEADER_V1 0x40 +#define IVT_HEADER_V2 0x41 + +struct ivt_header { + uint8_t magic; + uint16_t length; + uint8_t version; +} __attribute__((packed)); + +struct ivt { + struct ivt_header hdr; /* IVT header above */ + uint32_t entry; /* Absolute address of first instruction */ + uint32_t reserved1; /* Reserved should be zero */ + uint32_t dcd; /* Absolute address of the image DCD */ + uint32_t boot; /* Absolute address of the boot data */ + uint32_t self; /* Absolute address of the IVT */ + uint32_t csf; /* Absolute address of the CSF */ + uint32_t reserved2; /* Reserved should be zero */ +}; + /* -------- start of HAB API updates ------------*/ /* The following are taken from HAB4 SIS */ -- cgit