Enable TPM in developer mode again.

firmware/lib/vboot_kernel.c

Index: firmware/lib/vboot_kernel.c
diff --git a/firmware/lib/vboot_kernel.c b/firmware/lib/vboot_kernel.c
index 0420f2554f332ce123fe18f048266e2b552a0983..3280ba5e17c1bc35e3dc70eed423e2e2468e4b55 100644
--- a/firmware/lib/vboot_kernel.c
+++ b/firmware/lib/vboot_kernel.c
@@ -152,16 +152,12 @@ int LoadKernel(LoadKernelParams* params) {
   params->bootloader_address = 0;
   params->bootloader_size = 0;
 
-  if (!is_dev) {
-    /* TODO: should use the TPM all the time; for now, only use when
-     * not in developer mode. */
-    /* Let the TPM know if we're in recovery mode */
-    if (is_rec) {
-      if (0 != RollbackKernelRecovery(is_dev ? 1 : 0)) {
-        VBDEBUG(("Error setting up TPM for recovery kernel\n"));
-        /* Ignore return code, since we need to boot recovery mode to
-         * fix the TPM. */
-      }
+  /* Let the TPM know if we're in recovery mode */
+  if (is_rec) {
+    if (0 != RollbackKernelRecovery(is_dev)) {
+      VBDEBUG(("Error setting up TPM for recovery kernel\n"));
+      /* Ignore return code, since we need to boot recovery mode to
+       * fix the TPM. */
     }
   }
 
@@ -350,6 +346,8 @@ int LoadKernel(LoadKernelParams* params) {
       good_partition = gpt.current_kernel + 1;
       params->partition_number = gpt.current_kernel + 1;
       GetCurrentKernelUniqueGuid(&gpt, &params->partition_guid);
+      /* TODO: GetCurrentKernelUniqueGuid() should take a destination size, or
+       * the dest should be a struct, so we know it's big enough. */
       params->bootloader_address = preamble->bootloader_address;
       params->bootloader_size = preamble->bootloader_size;
       /* If we're in developer or recovery mode, there's no rollback
@@ -400,24 +398,20 @@ int LoadKernel(LoadKernelParams* params) {
                                      (uint16_t)lowest_kernel_version);
         if (0 != status) {
           VBDEBUG(("Error writing kernel versions to TPM.\n"));
-      return (status == TPM_E_MUST_REBOOT ?
-              LOAD_KERNEL_REBOOT : LOAD_KERNEL_RECOVERY);
+          return (status == TPM_E_MUST_REBOOT ?
+                  LOAD_KERNEL_REBOOT : LOAD_KERNEL_RECOVERY);
         }
       }
     }
 
-    if (!is_dev) {
-      /* TODO: should use the TPM all the time; for now, only use when
-       * not in developer mode. */
-      /* Lock the kernel versions */
-      status = RollbackKernelLock();
-      if (0 != status) {
-        VBDEBUG(("Error locking kernel versions.\n"));
-        /* Don't reboot to recovery mode if we're already there */
-        if (!is_rec)
-          return (status == TPM_E_MUST_REBOOT ?
-                  LOAD_KERNEL_REBOOT : LOAD_KERNEL_RECOVERY);
-      }
+    /* Lock the kernel versions */
+    status = RollbackKernelLock();
+    if (0 != status) {
+      VBDEBUG(("Error locking kernel versions.\n"));
+      /* Don't reboot to recovery mode if we're already there */
+      if (!is_rec)
+        return (status == TPM_E_MUST_REBOOT ?
+                LOAD_KERNEL_REBOOT : LOAD_KERNEL_RECOVERY);
     }
 
     /* Success! */