summaryrefslogtreecommitdiff
path: root/src/lib/tpm2_tlcl.c
diff options
context:
space:
mode:
Diffstat (limited to 'src/lib/tpm2_tlcl.c')
-rw-r--r--src/lib/tpm2_tlcl.c14
1 files changed, 10 insertions, 4 deletions
diff --git a/src/lib/tpm2_tlcl.c b/src/lib/tpm2_tlcl.c
index ecf0db6058..adc4c2e990 100644
--- a/src/lib/tpm2_tlcl.c
+++ b/src/lib/tpm2_tlcl.c
@@ -157,16 +157,22 @@ uint32_t tlcl_get_flags(uint8_t *disable, uint8_t *deactivated,
return TPM_SUCCESS;
}
+static uint8_t tlcl_init_done CAR_GLOBAL;
+
+/* This function is called directly by vboot, uses vboot return types. */
uint32_t tlcl_lib_init(void)
{
- /*
- * This function is called directly by vboot, uses vboot return
- * types.
- */
+ uint8_t done = car_get_var(tlcl_init_done);
+ if (done)
+ return VB2_SUCCESS;
+
if (tis_init())
return VB2_ERROR_UNKNOWN;
if (tis_open())
return VB2_ERROR_UNKNOWN;
+
+ car_set_var(tlcl_init_done, 1);
+
return VB2_SUCCESS;
}