diff options
Diffstat (limited to 'bl1')
| -rw-r--r-- | bl1/aarch64/bl1_exceptions.S | 9 | ||||
| -rw-r--r-- | bl1/bl1_main.c | 10 |
2 files changed, 19 insertions, 0 deletions
diff --git a/bl1/aarch64/bl1_exceptions.S b/bl1/aarch64/bl1_exceptions.S index 3e72e39f..9bba6eef 100644 --- a/bl1/aarch64/bl1_exceptions.S +++ b/bl1/aarch64/bl1_exceptions.S @@ -226,6 +226,15 @@ smc_handler: */ bl save_gp_pmcr_pauth_regs +#if ENABLE_PAUTH + /* ----------------------------------------------------- + * Load and program stored APIAKey firmware key. + * Re-enable pointer authentication in EL3, as it was + * disabled before jumping to the next boot image. + * ----------------------------------------------------- + */ + bl pauth_load_bl1_apiakey_enable +#endif /* ----------------------------------------------------- * Populate the parameters for the SMC handler. We * already have x0-x4 in place. x5 will point to a diff --git a/bl1/bl1_main.c b/bl1/bl1_main.c index 2bb85114..cd6fe7d5 100644 --- a/bl1/bl1_main.c +++ b/bl1/bl1_main.c @@ -31,6 +31,10 @@ DEFINE_SVC_UUID2(bl1_svc_uid, static void bl1_load_bl2(void); +#if ENABLE_PAUTH +uint64_t bl1_apiakey[2]; +#endif + /******************************************************************************* * Helper utility to calculate the BL2 memory layout taking into consideration * the BL1 RW data assuming that it is at the top of the memory layout. @@ -131,6 +135,12 @@ void bl1_main(void) /* Perform platform setup in BL1. */ bl1_platform_setup(); +#if ENABLE_PAUTH + /* Store APIAKey_EL1 key */ + bl1_apiakey[0] = read_apiakeylo_el1(); + bl1_apiakey[1] = read_apiakeyhi_el1(); +#endif /* ENABLE_PAUTH */ + /* Get the image id of next image to load and run. */ image_id = bl1_plat_get_next_image_id(); |