UefiCpuPkg/CpuDxe: implement non-stop mode for uefi

[mirror_edk2.git] / UefiCpuPkg / CpuDxe / CpuDxe.h

diff --git a/UefiCpuPkg/CpuDxe/CpuDxe.h b/UefiCpuPkg/CpuDxe/CpuDxe.h
index 540f5f2dbf0fe4e8a4671c3e77d183f5ef281429..7d65e39e90d9be9acacabfe28b4acb37edac839f 100644 (file)
--- a/UefiCpuPkg/CpuDxe/CpuDxe.h
+++ b/UefiCpuPkg/CpuDxe/CpuDxe.h
@@ -57,6 +57,12 @@
                                        EFI_MEMORY_RO    \\r
                                        )\r
 \r
+#define HEAP_GUARD_NONSTOP_MODE       \\r
+        ((PcdGet8 (PcdHeapGuardPropertyMask) & (BIT6|BIT1|BIT0)) > BIT6)\r
+\r
+#define NULL_DETECTION_NONSTOP_MODE   \\r
+        ((PcdGet8 (PcdNullPointerDetectionPropertyMask) & (BIT6|BIT0)) > BIT6)\r
+\r
 /**\r
   Flush CPU data cache. If the instruction cache is fully coherent\r
   with all DMA operations then function can just return EFI_SUCCESS.\r
@@ -273,7 +279,40 @@ RefreshGcdMemoryAttributesFromPaging (
   VOID\r
   );\r
 \r
+/**\r
+  Special handler for #DB exception, which will restore the page attributes\r
+  (not-present). It should work with #PF handler which will set pages to\r
+  'present'.\r
+\r
+  @param ExceptionType  Exception type.\r
+  @param SystemContext  Pointer to EFI_SYSTEM_CONTEXT.\r
+\r
+**/\r
+VOID\r
+EFIAPI\r
+DebugExceptionHandler (\r
+  IN EFI_EXCEPTION_TYPE   InterruptType,\r
+  IN EFI_SYSTEM_CONTEXT   SystemContext\r
+  );\r
+\r
+/**\r
+  Special handler for #PF exception, which will set the pages which caused\r
+  #PF to be 'present'. The attribute of those pages should be restored in\r
+  the subsequent #DB handler.\r
+\r
+  @param ExceptionType  Exception type.\r
+  @param SystemContext  Pointer to EFI_SYSTEM_CONTEXT.\r
+\r
+**/\r
+VOID\r
+EFIAPI\r
+PageFaultExceptionHandler (\r
+  IN EFI_EXCEPTION_TYPE   InterruptType,\r
+  IN EFI_SYSTEM_CONTEXT   SystemContext\r
+  );\r
+\r
 extern BOOLEAN mIsAllocatingPageTable;\r
+extern UINTN   mNumberOfProcessors;\r
 \r
 #endif\r
 \r