Add flashmap base address

host/lib/crossystem.c

 /* Copyright (c) 2011 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.
  */
 
 #include <stdio.h>
 #include <string.h>
 
 #include "host_common.h"
 
@@ skipping 43 matching lines @@
 #define BINF0_S3_RESUME_FAILED        10
 /* Recovery caused by TPM error */
 #define BINF0_RECOVERY_TPM_ERROR      11
 
 /* Base name for ACPI files */
 #define ACPI_BASE_PATH "/sys/devices/platform/chromeos_acpi"
 /* Paths for frequently used ACPI files */
 #define ACPI_BINF_PATH ACPI_BASE_PATH "/BINF"
 #define ACPI_CHNV_PATH ACPI_BASE_PATH "/CHNV"
 #define ACPI_CHSW_PATH ACPI_BASE_PATH "/CHSW"
+#define ACPI_FMAP_PATH ACPI_BASE_PATH "/FMAP"
 #define ACPI_GPIO_PATH ACPI_BASE_PATH "/GPIO"
 
 /* Base name for GPIO files */
 #define GPIO_BASE_PATH "/sys/class/gpio"
 #define GPIO_EXPORT_PATH GPIO_BASE_PATH "/export"
 
 /* Base name for NVRAM file */
 #define NVRAM_PATH "/dev/nvram"
 
 
@@ skipping 314 matching lines @@
   else if (!strcasecmp(name,"recovery_request")) {
     value = VbGetCmosRebootField(CMOSRF_RECOVERY);
   } else if (!strcasecmp(name,"dbg_reset")) {
     value = VbGetCmosRebootField(CMOSRF_DEBUG_RESET);
   } else if (!strcasecmp(name,"fwb_tries")) {
     value = VbGetCmosRebootField(CMOSRF_TRY_B);
   }
   /* Other parameters */
   else if (!strcasecmp(name,"recovery_reason")) {
     return VbGetRecoveryReason();
+  } else if (!strcasecmp(name,"fmap_base")) {
+    value = ReadFileInt(ACPI_FMAP_PATH);
   }
 
   /* TODO: implement the following properties:
    *   nvram_cleared
    */
 
   return value;
 }
 
 
@@ skipping 59 matching lines @@
 
 
 /* Set a system property string.
  *
  * Returns 0 if success, -1 if error. */
 int VbSetSystemPropertyString(const char* name, const char* value) {
 
   /* TODO: support setting */
   return -1;
 }