OvmfPkg/PlatformPei: Skip various items for S3 resume

[mirror_edk2.git] / OvmfPkg / PlatformPei / MemDetect.c

diff --git a/OvmfPkg/PlatformPei/MemDetect.c b/OvmfPkg/PlatformPei/MemDetect.c
index 851850b50dd47d46835b31c78975be0eb876b646..c198c3846fdcf68a4757c9e029b87e27dfb26099 100644 (file)
--- a/OvmfPkg/PlatformPei/MemDetect.c
+++ b/OvmfPkg/PlatformPei/MemDetect.c
@@ -99,16 +99,21 @@ PublishPeiMemory (
   UINT64                      MemorySize;\r
   UINT64                      LowerMemorySize;\r
 \r
-  LowerMemorySize = GetSystemMemorySizeBelow4gb ();\r
-\r
-  //\r
-  // Determine the range of memory to use during PEI\r
-  //\r
-  MemoryBase = PcdGet32 (PcdOvmfDxeMemFvBase) + PcdGet32 (PcdOvmfDxeMemFvSize);\r
-  MemorySize = LowerMemorySize - MemoryBase;\r
-  if (MemorySize > SIZE_64MB) {\r
-    MemoryBase = LowerMemorySize - SIZE_64MB;\r
-    MemorySize = SIZE_64MB;\r
+  if (mBootMode == BOOT_ON_S3_RESUME) {\r
+    MemoryBase = PcdGet32 (PcdS3AcpiReservedMemoryBase);\r
+    MemorySize = PcdGet32 (PcdS3AcpiReservedMemorySize);\r
+  } else {\r
+    LowerMemorySize = GetSystemMemorySizeBelow4gb ();\r
+\r
+    //\r
+    // Determine the range of memory to use during PEI\r
+    //\r
+    MemoryBase = PcdGet32 (PcdOvmfDxeMemFvBase) + PcdGet32 (PcdOvmfDxeMemFvSize);\r
+    MemorySize = LowerMemorySize - MemoryBase;\r
+    if (MemorySize > SIZE_64MB) {\r
+      MemoryBase = LowerMemorySize - SIZE_64MB;\r
+      MemorySize = SIZE_64MB;\r
+    }\r
   }\r
 \r
   //\r
@@ -122,19 +127,19 @@ PublishPeiMemory (
 \r
 \r
 /**\r
-  Peform Memory Detection\r
-\r
-  @return Top of memory\r
+  Peform Memory Detection for QEMU / KVM\r
 \r
 **/\r
-EFI_PHYSICAL_ADDRESS\r
-MemDetect (\r
+STATIC\r
+VOID\r
+QemuInitializeRam (\r
+  VOID\r
   )\r
 {\r
   UINT64                      LowerMemorySize;\r
   UINT64                      UpperMemorySize;\r
 \r
-  DEBUG ((EFI_D_ERROR, "MemDetect called\n"));\r
+  DEBUG ((EFI_D_INFO, "%a called\n", __FUNCTION__));\r
 \r
   //\r
   // Determine total memory size available\r
@@ -142,22 +147,50 @@ MemDetect (
   LowerMemorySize = GetSystemMemorySizeBelow4gb ();\r
   UpperMemorySize = GetSystemMemorySizeAbove4gb ();\r
 \r
-  //\r
-  // Create memory HOBs\r
-  //\r
-  AddMemoryRangeHob (BASE_1MB, LowerMemorySize);\r
-  AddMemoryRangeHob (0, BASE_512KB + BASE_128KB);\r
+  if (mBootMode != BOOT_ON_S3_RESUME) {\r
+    //\r
+    // Create memory HOBs\r
+    //\r
+    AddMemoryRangeHob (BASE_1MB, LowerMemorySize);\r
+    AddMemoryRangeHob (0, BASE_512KB + BASE_128KB);\r
+  }\r
 \r
   MtrrSetMemoryAttribute (BASE_1MB, LowerMemorySize - BASE_1MB, CacheWriteBack);\r
 \r
   MtrrSetMemoryAttribute (0, BASE_512KB + BASE_128KB, CacheWriteBack);\r
 \r
   if (UpperMemorySize != 0) {\r
-    AddUntestedMemoryBaseSizeHob (BASE_4GB, UpperMemorySize);\r
+    if (mBootMode != BOOT_ON_S3_RESUME) {\r
+      AddUntestedMemoryBaseSizeHob (BASE_4GB, UpperMemorySize);\r
+    }\r
 \r
     MtrrSetMemoryAttribute (BASE_4GB, UpperMemorySize, CacheWriteBack);\r
   }\r
-\r
-  return LowerMemorySize;\r
 }\r
 \r
+/**\r
+  Publish system RAM and reserve memory regions\r
+\r
+**/\r
+VOID\r
+InitializeRamRegions (\r
+  VOID\r
+  )\r
+{\r
+  if (!mXen) {\r
+    QemuInitializeRam ();\r
+  } else {\r
+    XenPublishRamRegions ();\r
+  }\r
+\r
+  if (mS3Supported && mBootMode != BOOT_ON_S3_RESUME) {\r
+    //\r
+    // This is the memory range that will be used for PEI on S3 resume\r
+    //\r
+    BuildMemoryAllocationHob (\r
+      (EFI_PHYSICAL_ADDRESS)(UINTN) PcdGet32 (PcdS3AcpiReservedMemoryBase),\r
+      (UINT64)(UINTN) PcdGet32 (PcdS3AcpiReservedMemorySize),\r
+      EfiACPIMemoryNVS\r
+      );\r
+  }\r
+}\r