OvmfPkg/ResetSystemLib: Add new API ResetSystem

REF: https://bugzilla.tianocore.org/show_bug.cgi?id=1460

Add a new API ResetSystem to this ResetSystemLib instance.
It only adds the basic functions from ResetSystemRuntimeDxe.
Lacking of this interface may cause link error, if some drivers
use this new API and link to this library instance.
Notes:
This library API only provide a basic function of reset. Full
function should use the instance in the MdeModulePkg and make
sure the depex driver is dispatched.

Cc: Jordan Justen <jordan.l.justen@intel.com>
Cc: Laszlo Ersek <lersek@redhat.com>
Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Liming Gao <liming.gao@intel.com>
Signed-off-by: Zhichao Gao <zhichao.gao@intel.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>

diff --git a/OvmfPkg/Library/ResetSystemLib/ResetSystemLib.c b/OvmfPkg/Library/ResetSystemLib/ResetSystemLib.c
index c2c7736aa88f06d3a4a8218d3067f3b40ad752f1..27460cd100ab9cc3b31608861aee00bfd91355ff 100644 (file)
--- a/OvmfPkg/Library/ResetSystemLib/ResetSystemLib.c
+++ b/OvmfPkg/Library/ResetSystemLib/ResetSystemLib.c
@@ -1,7 +1,7 @@
 /** @file\r
   Reset System Library functions for OVMF\r
 \r
 /** @file\r
   Reset System Library functions for OVMF\r
 \r

-  Copyright (c) 2006 - 2016, Intel Corporation. All rights reserved.<BR>\r
+  Copyright (c) 2006 - 2019, Intel Corporation. All rights reserved.<BR>\r

   SPDX-License-Identifier: BSD-2-Clause-Patent\r
 \r
 **/\r
   SPDX-License-Identifier: BSD-2-Clause-Patent\r
 \r
 **/\r


@@ -140,3 +140,46 @@ ResetPlatformSpecific (
 {\r
   ResetCold ();\r
 }\r
 {\r
   ResetCold ();\r
 }\r

+\r
+/**\r
+  The ResetSystem function resets the entire platform.\r
+\r
+  @param[in] ResetType      The type of reset to perform.\r
+  @param[in] ResetStatus    The status code for the reset.\r
+  @param[in] DataSize       The size, in bytes, of ResetData.\r
+  @param[in] ResetData      For a ResetType of EfiResetCold, EfiResetWarm, or EfiResetShutdown\r
+                            the data buffer starts with a Null-terminated string, optionally\r
+                            followed by additional binary data. The string is a description\r
+                            that the caller may use to further indicate the reason for the\r
+                            system reset.\r
+**/\r
+VOID\r
+EFIAPI\r
+ResetSystem (\r
+  IN EFI_RESET_TYPE               ResetType,\r
+  IN EFI_STATUS                   ResetStatus,\r
+  IN UINTN                        DataSize,\r
+  IN VOID                         *ResetData OPTIONAL\r
+  )\r
+{\r
+  switch (ResetType) {\r
+  case EfiResetWarm:\r
+    ResetWarm ();\r
+    break;\r
+\r
+  case EfiResetCold:\r
+    ResetCold ();\r
+    break;\r
+\r
+  case EfiResetShutdown:\r
+    ResetShutdown ();\r
+    return;\r
+\r
+  case EfiResetPlatformSpecific:\r
+    ResetPlatformSpecific (DataSize, ResetData);\r
+    return;\r
+\r
+  default:\r
+    return;\r
+  }\r
+}\r