return GdtTssTables;\r
}\r
\r
+/**\r
+ This function sets GDT/IDT buffer to be RO and XP.\r
+**/\r
+VOID\r
+PatchGdtIdtMap (\r
+ VOID\r
+ )\r
+{\r
+ EFI_PHYSICAL_ADDRESS BaseAddress;\r
+ UINTN Size;\r
+\r
+ //\r
+ // GDT\r
+ //\r
+ DEBUG ((DEBUG_INFO, "PatchGdtIdtMap - GDT:\n"));\r
+\r
+ BaseAddress = mGdtBuffer;\r
+ Size = ALIGN_VALUE(mGdtBufferSize, SIZE_4KB);\r
+ SmmSetMemoryAttributes (\r
+ BaseAddress,\r
+ Size,\r
+ EFI_MEMORY_RO\r
+ );\r
+ SmmSetMemoryAttributes (\r
+ BaseAddress,\r
+ Size,\r
+ EFI_MEMORY_XP\r
+ );\r
+\r
+ //\r
+ // IDT\r
+ //\r
+ DEBUG ((DEBUG_INFO, "PatchGdtIdtMap - IDT:\n"));\r
+\r
+ BaseAddress = gcSmiIdtr.Base;\r
+ Size = ALIGN_VALUE(gcSmiIdtr.Limit + 1, SIZE_4KB);\r
+ SmmSetMemoryAttributes (\r
+ BaseAddress,\r
+ Size,\r
+ EFI_MEMORY_RO\r
+ );\r
+ SmmSetMemoryAttributes (\r
+ BaseAddress,\r
+ Size,\r
+ EFI_MEMORY_XP\r
+ );\r
+}\r
+\r
/**\r
Get Protected mode code segment from current GDT table.\r
\r
/**\r
Transfer AP to safe hlt-loop after it finished restore CPU features on S3 patch.\r
\r
- @param[in] ApHltLoopCode The 32-bit address of the safe hlt-loop function.\r
- @param[in] TopOfStack A pointer to the new stack to use for the ApHltLoopCode.\r
- @param[in] NumberToFinish Semaphore of APs finish count.\r
+ @param[in] ApHltLoopCode The address of the safe hlt-loop function.\r
+ @param[in] TopOfStack A pointer to the new stack to use for the ApHltLoopCode.\r
+ @param[in] NumberToFinishAddress Address of Semaphore of APs finish count.\r
\r
**/\r
VOID\r
TransferApToSafeState (\r
- IN UINT32 ApHltLoopCode,\r
- IN UINT32 TopOfStack,\r
- IN UINT32 *NumberToFinish\r
+ IN UINTN ApHltLoopCode,\r
+ IN UINTN TopOfStack,\r
+ IN UINTN NumberToFinishAddress\r
)\r
{\r
AsmDisablePaging64 (\r
GetProtectedModeCS (),\r
- (UINT32) (UINTN) ApHltLoopCode,\r
- (UINT32) (UINTN) NumberToFinish,\r
+ (UINT32)ApHltLoopCode,\r
+ (UINT32)NumberToFinishAddress,\r
0,\r
- TopOfStack\r
+ (UINT32)TopOfStack\r
);\r
//\r
// It should never reach here\r
ASSERT (FALSE);\r
}\r
\r
-\r