Make LoadKernel() pass back the kernel partition's UniqueGuid.

firmware/lib/vboot_kernel.c

 /* Copyright (c) 2010 The Chromium OS Authors. All rights reserved.
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  *
  * Functions for loading a kernel from disk.
  * (Firmware portion)
  */
 
 #include "vboot_kernel.h"
 
 #include "boot_device.h"
 #include "cgptlib.h"
 #include "load_kernel_fw.h"
 #include "rollback_index.h"
 #include "utility.h"
 #include "vboot_common.h"
-
+#include "cgptlib_internal.h"

[gauravsh, 2010/07/23 01:50:57]

nit: alpha order

 
 #define KBUF_SIZE 65536  /* Bytes to read at start of kernel partition */
 
 
 /* Allocates and reads GPT data from the drive.  The sector_bytes and
  * drive_sectors fields should be filled on input.  The primary and
  * secondary header and entries are filled on output.
  *
  * Returns 0 if successful, 1 if error. */
 int AllocAndReadGptData(GptData* gptdata) {
@@ skipping 315 matching lines @@
       /* Done with the kernel signing key, so can free it now */
       RSAPublicKeyFree(data_key);
 
       /* If we're still here, the kernel is valid. */
       /* Save the first good partition we find; that's the one we'll boot */
       VBDEBUG(("Partiton is good.\n"));
       /* TODO: GPT partitions start at 1, but cgptlib starts them at 0.
        * Adjust here, until cgptlib is fixed. */
       good_partition = gpt.current_kernel + 1;
       params->partition_number = gpt.current_kernel + 1;
+      GetCurrentKernelUniqueGuid(&gpt, &params->partition_guid);
       params->bootloader_address = preamble->bootloader_address;
       params->bootloader_size = preamble->bootloader_size;
       /* If we're in developer or recovery mode, there's no rollback
        * protection, so we can stop at the first valid kernel. */
       if (!is_normal) {
         VBDEBUG(("Boot_flags = !is_normal\n"));
         break;
       }
 
       /* Otherwise, we're in normal boot mode, so we do care about the
@@ skipping 60 matching lines @@
     /* Success! */
     return LOAD_KERNEL_SUCCESS;
   }
 
   // Handle error cases
   if (found_partitions)
     return LOAD_KERNEL_INVALID;
   else
     return LOAD_KERNEL_NOT_FOUND;
 }