OvmfPkg/QemuFwCfgLib: Prepare for SEV support

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

diff --git a/OvmfPkg/Library/ResetSystemLib/ResetSystemLib.c b/OvmfPkg/Library/ResetSystemLib/ResetSystemLib.c
index 6d149e84c21e6ce57da8d45ed1f4cebbf8e0f591..cc75d046a8e9b3e6d2888c28082a6fc71bbd18a4 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
-  Copyright (c) 2006 - 2013, Intel Corporation. All rights reserved.<BR>\r
+  Copyright (c) 2006 - 2016, 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
@@ -17,18 +17,37 @@
 #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 +125,24 @@ 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