Prepare v2023.10

[platform/kernel/u-boot.git] / lib / tpm-v2.c

diff --git a/lib/tpm-v2.c b/lib/tpm-v2.c
index edee985..9ab5b46 100644 (file)
--- a/lib/tpm-v2.c
+++ b/lib/tpm-v2.c
@@ -44,6 +44,23 @@ u32 tpm2_self_test(struct udevice *dev, enum tpm2_yes_no full_test)
        return tpm_sendrecv_command(dev, command_v2, NULL, NULL);
 }
 
+u32 tpm2_auto_start(struct udevice *dev)
+{
+       u32 rc;
+
+       rc = tpm2_self_test(dev, TPMI_YES);
+
+       if (rc == TPM2_RC_INITIALIZE) {
+               rc = tpm2_startup(dev, TPM2_SU_CLEAR);
+               if (rc)
+                       return rc;
+
+               rc = tpm2_self_test(dev, TPMI_YES);
+       }
+
+       return rc;
+}
+
 u32 tpm2_clear(struct udevice *dev, u32 handle, const char *pw,
               const ssize_t pw_sz)
 {
@@ -704,3 +721,24 @@ u32 tpm2_report_state(struct udevice *dev, uint vendor_cmd, uint vendor_subcmd,
 
        return 0;
 }
+
+u32 tpm2_enable_nvcommits(struct udevice *dev, uint vendor_cmd,
+                         uint vendor_subcmd)
+{
+       u8 command_v2[COMMAND_BUFFER_SIZE] = {
+               /* header 10 bytes */
+               tpm_u16(TPM2_ST_NO_SESSIONS),           /* TAG */
+               tpm_u32(10 + 2),                        /* Length */
+               tpm_u32(vendor_cmd),    /* Command code */
+
+               tpm_u16(vendor_subcmd),
+       };
+       int ret;
+
+       ret = tpm_sendrecv_command(dev, command_v2, NULL, NULL);
+       log_debug("ret=%s, %x\n", dev->name, ret);
+       if (ret)
+               return ret;
+
+       return 0;
+}