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arm: imx: hab: Define rvt_check_target()

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The hab_rvt_check_target() callback according to the HABv4 documentation:

"This function reports whether or not a given target region is allowed for
 either peripheral configuration or image loading in memory. It is intended
 for use by post-ROM boot stage components, via the ROM Vector Table, in
 order to avoid configuring security-sensitive peripherals, or loading
 images over sensitive memory regions or outside recognized memory devices
 in the address map."

It is a useful function to support as a precursor to calling into
authenticate_image() to validate the target memory region is good.

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>
This commit is contained in:
Bryan O'Donoghue 2018-01-12 12:40:08 +00:00 committed by Stefano Babic
parent 824ef302f3
commit 1addedadc4
1 changed files with 9 additions and 0 deletions
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9
arch/arm/include/asm/mach-imx/hab.h
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@ -113,6 +113,12 @@ enum hab_context {
HAB_CTX_MAX
};
enum hab_target {
HAB_TGT_MEMORY = 0x0f,
HAB_TGT_PERIPHERAL = 0xf0,
HAB_TGT_ANY = 0x55,
};
struct imx_sec_config_fuse_t {
int bank;
int word;
@ -132,6 +138,8 @@ typedef enum hab_status hab_rvt_entry_t(void);
typedef enum hab_status hab_rvt_exit_t(void);
typedef void *hab_rvt_authenticate_image_t(uint8_t, ptrdiff_t,
void **, size_t *, hab_loader_callback_f_t);
typedef enum hab_status hab_rvt_check_target_t(enum hab_target, const void *,
size_t);
typedef void hapi_clock_init_t(void);
#define HAB_ENG_ANY 0x00 /* Select first compatible engine */
@ -158,6 +166,7 @@ typedef void hapi_clock_init_t(void);
#define HAB_RVT_ENTRY (*(uint32_t *)(HAB_RVT_BASE + 0x04))
#define HAB_RVT_EXIT (*(uint32_t *)(HAB_RVT_BASE + 0x08))
#define HAB_RVT_CHECK_TARGET (*(uint32_t *)(HAB_RVT_BASE + 0x0C))
#define HAB_RVT_AUTHENTICATE_IMAGE (*(uint32_t *)(HAB_RVT_BASE + 0x10))
#define HAB_RVT_REPORT_EVENT (*(uint32_t *)(HAB_RVT_BASE + 0x20))
#define HAB_RVT_REPORT_STATUS (*(uint32_t *)(HAB_RVT_BASE + 0x24))