OvmfPkg/ResetSystemLib: Add new API ResetSystem

[mirror_edk2.git] / OvmfPkg / Library / ResetSystemLib / ResetSystemLib.c

diff --git a/OvmfPkg/Library/ResetSystemLib/ResetSystemLib.c b/OvmfPkg/Library/ResetSystemLib/ResetSystemLib.c
index 6d149e84c21e6ce57da8d45ed1f4cebbf8e0f591..27460cd100ab9cc3b31608861aee00bfd91355ff 100644 (file)
--- a/OvmfPkg/Library/ResetSystemLib/ResetSystemLib.c
+++ b/OvmfPkg/Library/ResetSystemLib/ResetSystemLib.c
@@ -1,14 +1,8 @@
 /** @file\r
   Reset System Library functions for OVMF\r
 \r
-  Copyright (c) 2006 - 2013, Intel Corporation. All rights reserved.<BR>\r
-  This program and the accompanying materials\r
-  are licensed and made available under the terms and conditions of the BSD License\r
-  which accompanies this distribution.  The full text of the license may be found at\r
-  http://opensource.org/licenses/bsd-license.php\r
-\r
-  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
-  WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
+  Copyright (c) 2006 - 2019, Intel Corporation. All rights reserved.<BR>\r
+  SPDX-License-Identifier: BSD-2-Clause-Patent\r
 \r
 **/\r
 \r
@@ -17,18 +11,37 @@
 #include <Library/BaseLib.h>\r
 #include <Library/DebugLib.h>\r
 #include <Library/IoLib.h>\r
-#include <Library/PcdLib.h>\r
 #include <Library/TimerLib.h>\r
+#include <OvmfPlatforms.h>\r
+\r
+#include <OvmfPlatforms.h>\r
 \r
 VOID\r
 AcpiPmControl (\r
   UINTN SuspendType\r
   )\r
 {\r
+  UINT16 AcpiPmBaseAddress;\r
+  UINT16 HostBridgeDevId;\r
+\r
   ASSERT (SuspendType < 6);\r
 \r
-  IoBitFieldWrite16  (PcdGet16 (PcdAcpiPmBaseAddress) + 4, 10, 13, (UINT16) SuspendType);\r
-  IoOr16 (PcdGet16 (PcdAcpiPmBaseAddress) + 4, BIT13);\r
+  AcpiPmBaseAddress = 0;\r
+  HostBridgeDevId = PciRead16 (OVMF_HOSTBRIDGE_DID);\r
+  switch (HostBridgeDevId) {\r
+  case INTEL_82441_DEVICE_ID:\r
+    AcpiPmBaseAddress = PIIX4_PMBA_VALUE;\r
+    break;\r
+  case INTEL_Q35_MCH_DEVICE_ID:\r
+    AcpiPmBaseAddress = ICH9_PMBASE_VALUE;\r
+    break;\r
+  default:\r
+    ASSERT (FALSE);\r
+    CpuDeadLoop ();\r
+  }\r
+\r
+  IoBitFieldWrite16 (AcpiPmBaseAddress + 4, 10, 13, (UINT16) SuspendType);\r
+  IoOr16 (AcpiPmBaseAddress + 4, BIT13);\r
   CpuDeadLoop ();\r
 }\r
 \r
@@ -106,3 +119,67 @@ EnterS3WithImmediateWake (
   AcpiPmControl (1);\r
   ASSERT (FALSE);\r
 }\r
+\r
+/**\r
+  This function causes a systemwide reset. The exact type of the reset is\r
+  defined by the EFI_GUID that follows the Null-terminated Unicode string passed\r
+  into ResetData. If the platform does not recognize the EFI_GUID in ResetData\r
+  the platform must pick a supported reset type to perform.The platform may\r
+  optionally log the parameters from any non-normal reset that occurs.\r
+\r
+  @param[in]  DataSize   The size, in bytes, of ResetData.\r
+  @param[in]  ResetData  The data buffer starts with a Null-terminated string,\r
+                         followed by the EFI_GUID.\r
+**/\r
+VOID\r
+EFIAPI\r
+ResetPlatformSpecific (\r
+  IN UINTN   DataSize,\r
+  IN VOID    *ResetData\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