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optee: Add optee_image_get_entry_point()

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Add a helper function for extracting the least significant 32 bits from the
OPTEE entry point address, which will be good enough to load OPTEE binaries
up to (2^32)-1 bytes.

We may need to extend this out later on but for now (2^32)-1 should be
fine.

Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Cc: Harinarayan Bhatta <harinarayan@ti.com>
Cc: Andrew F. Davis <afd@ti.com>
Cc: Tom Rini <trini@konsulko.com>
Cc: Kever Yang <kever.yang@rock-chips.com>
Cc: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Cc: Peng Fan <peng.fan@nxp.com>
Tested-by: Peng Fan <peng.fan@nxp.com>
This commit is contained in:
Bryan O'Donoghue 2018-03-13 16:50:31 +00:00 committed by Tom Rini
parent f25006b96e
commit f79443684b
1 changed files with 7 additions and 0 deletions
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7
include/tee/optee.h
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@ -29,6 +29,13 @@ struct optee_header {
uint32_t paged_size;
};
static inline uint32_t optee_image_get_entry_point(const image_header_t *hdr)
{
struct optee_header *optee_hdr = (struct optee_header *)(hdr + 1);
return optee_hdr->init_load_addr_lo;
}
#if defined(CONFIG_OPTEE)
int optee_verify_image(struct optee_header *hdr, unsigned long tzdram_start,
unsigned long tzdram_len, unsigned long image_len);