trusty: Restore working trusty setup code and include trusty image in build
Change-Id: I081901e7df22f78dd9c4fc4c6bfad2aceb870a2d
Signed-off-by: Arve Hjønnevåg <arve@android.com>
diff --git a/services/spd/trusty/trusty.c b/services/spd/trusty/trusty.c
index ecbcfae..08767bb 100644
--- a/services/spd/trusty/trusty.c
+++ b/services/spd/trusty/trusty.c
@@ -385,11 +385,23 @@
.svc_suspend_finish = trusty_cpu_suspend_finish_handler,
};
+void plat_trusty_set_boot_args(aapcs64_params_t *args);
+
+#ifdef TSP_SEC_MEM_SIZE
+#pragma weak plat_trusty_set_boot_args
+void plat_trusty_set_boot_args(aapcs64_params_t *args)
+{
+ args->arg0 = TSP_SEC_MEM_SIZE;
+}
+#endif
+
static int32_t trusty_setup(void)
{
entry_point_info_t *ep_info;
+ uint32_t instr;
uint32_t flags;
int ret;
+ int aarch32 = 0;
/* Get trusty's entry point info */
ep_info = bl31_plat_get_next_image_ep_info(SECURE);
@@ -398,17 +410,29 @@
return -1;
}
- /* Trusty runs in AARCH64 mode */
- SET_PARAM_HEAD(ep_info, PARAM_EP, VERSION_1, SECURE | EP_ST_ENABLE);
- ep_info->spsr = SPSR_64(MODE_EL1, MODE_SP_ELX, DISABLE_ALL_EXCEPTIONS);
+ instr = *(uint32_t *)ep_info->pc;
- /*
- * arg0 = TZDRAM aperture available for BL32
- * arg1 = BL32 boot params
- * arg2 = BL32 boot params length
- */
- ep_info->args.arg1 = ep_info->args.arg2;
- ep_info->args.arg2 = TRUSTY_PARAMS_LEN_BYTES;
+ if (instr >> 24 == 0xea) {
+ INFO("trusty: Found 32 bit image\n");
+ aarch32 = 1;
+ } else if (instr >> 8 == 0xd53810 || instr >> 16 == 0x9400) {
+ INFO("trusty: Found 64 bit image\n");
+ } else {
+ NOTICE("trusty: Found unknown image, 0x%x\n", instr);
+ }
+
+ SET_PARAM_HEAD(ep_info, PARAM_EP, VERSION_1, SECURE | EP_ST_ENABLE);
+ if (!aarch32)
+ ep_info->spsr = SPSR_64(MODE_EL1, MODE_SP_ELX,
+ DISABLE_ALL_EXCEPTIONS);
+ else
+ ep_info->spsr = SPSR_MODE32(MODE32_svc, SPSR_T_ARM,
+ SPSR_E_LITTLE,
+ DAIF_FIQ_BIT |
+ DAIF_IRQ_BIT |
+ DAIF_ABT_BIT);
+ memset(&ep_info->args, 0, sizeof(ep_info->args));
+ plat_trusty_set_boot_args(&ep_info->args);
/* register init handler */
bl31_register_bl32_init(trusty_init);
diff --git a/services/spd/trusty/trusty.mk b/services/spd/trusty/trusty.mk
index beca875..920504c 100644
--- a/services/spd/trusty/trusty.mk
+++ b/services/spd/trusty/trusty.mk
@@ -8,3 +8,5 @@
SPD_SOURCES := services/spd/trusty/trusty.c \
services/spd/trusty/trusty_helpers.S
+
+NEED_BL32 := yes