Enable the 0-31 temporary IDT entries prior to activate the LongMode. If not enable the temporary IDT table, DEBUG_PROPERTY_ASSERT_BREAKPOINT_ENABLED may not work correctly till CPU DXE programs the IDT table.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@3966 6f19259b-4bc3-4df7-8a09-765794883524

5 files changed, 270 insertions, 1 deletions

diff --git a/MdeModulePkg/Core/DxeIplPeim/DxeIpl.inf b/MdeModulePkg/Core/DxeIplPeim/DxeIpl.inf
index 8115a4a..9ee0ebf 100644
--- a/MdeModulePkg/Core/DxeIplPeim/DxeIpl.inf
+++ b/MdeModulePkg/Core/DxeIplPeim/DxeIpl.inf
@@ -40,6 +40,8 @@
   Ia32/VirtualMemory.c

   Ia32/DxeLoadFunc.c

   Ia32/ImageRead.c

+  Ia32/IdtVectorAsm.asm

+  Ia32/IdtVectorAsm.S | GCC

 

 [Sources.X64]

   X64/DxeLoadFunc.c

@@ -99,6 +101,7 @@
   gEfiMdeModulePkgTokenSpaceGuid.PcdDxeIplBuildShareCodeHobs

 

 [FeaturePcd.IA32]

+  gEfiMdeModulePkgTokenSpaceGuid.PcdDxeIplEnableIdt

   gEfiMdeModulePkgTokenSpaceGuid.PcdDxeIplSwitchToLongMode

 

 

diff --git a/MdeModulePkg/Core/DxeIplPeim/Ia32/DxeLoadFunc.c b/MdeModulePkg/Core/DxeIplPeim/Ia32/DxeLoadFunc.c
index 63ee2af..bdece76 100644
--- a/MdeModulePkg/Core/DxeIplPeim/Ia32/DxeLoadFunc.c
+++ b/MdeModulePkg/Core/DxeIplPeim/Ia32/DxeLoadFunc.c
@@ -46,6 +46,11 @@ GLOBAL_REMOVE_IF_UNREFERENCED CONST IA32_DESCRIPTOR gGdt = {
   (UINTN) gGdtEntries

   };

 

+GLOBAL_REMOVE_IF_UNREFERENCED  IA32_DESCRIPTOR gLidtDescriptor = {

+  sizeof (X64_IDT_GATE_DESCRIPTOR) * 32 - 1,

+  0

+};

+

 VOID

 HandOffToDxeCore (

   IN EFI_PHYSICAL_ADDRESS   DxeCoreEntryPoint,

@@ -57,6 +62,11 @@ HandOffToDxeCore (
   EFI_PHYSICAL_ADDRESS      BaseOfStack;

   EFI_PHYSICAL_ADDRESS      TopOfStack;

   UINTN                     PageTables;

+  X64_IDT_GATE_DESCRIPTOR   *IdtTable;

+  UINTN                     SizeOfTemplate;

+  VOID                      *TemplateBase;

+  EFI_PHYSICAL_ADDRESS      VectorAddress;

+  UINT32                    Index;

 

   Status = PeiServicesAllocatePages (EfiBootServicesData, EFI_SIZE_TO_PAGES (STACK_SIZE), &BaseOfStack);

   ASSERT_EFI_ERROR (Status);

@@ -95,7 +105,40 @@ HandOffToDxeCore (
     ASSERT_EFI_ERROR (Status);

     

     AsmWriteCr3 (PageTables);

-     //

+

+

+    if (FeaturePcdGet (PcdDxeIplEnableIdt)) {

+      SizeOfTemplate = AsmGetVectorTemplatInfo (&TemplateBase);

+  

+      Status = PeiServicesAllocatePages (

+                 EfiBootServicesData, 

+                 EFI_SIZE_TO_PAGES((SizeOfTemplate + sizeof (X64_IDT_GATE_DESCRIPTOR)) * 32), 

+                 &VectorAddress

+                 );

+  

+      ASSERT_EFI_ERROR (Status);

+  

+      IdtTable      = (X64_IDT_GATE_DESCRIPTOR *) (UINTN) (VectorAddress + SizeOfTemplate * 32);

+      for (Index = 0; Index < 32; Index++) {

+        IdtTable[Index].Ia32IdtEntry.Bits.GateType    =  0x8e;

+        IdtTable[Index].Ia32IdtEntry.Bits.Reserved_0  =  0;

+        IdtTable[Index].Ia32IdtEntry.Bits.Selector    =  SYS_CODE64_SEL;

+  

+        IdtTable[Index].Ia32IdtEntry.Bits.OffsetLow   = (UINT16) VectorAddress;

+        IdtTable[Index].Ia32IdtEntry.Bits.OffsetHigh  = (UINT16) (VectorAddress >> 16);

+        IdtTable[Index].Offset32To63                  = (UINT32) (VectorAddress >> 32);

+        IdtTable[Index].Reserved                      = 0;

+  

+        CopyMem ((VOID *) (UINTN) VectorAddress, TemplateBase, SizeOfTemplate);

+        AsmVectorFixup ((VOID *) (UINTN) VectorAddress, (UINT8) Index);

+  

+        VectorAddress += SizeOfTemplate;

+      }

+  

+      gLidtDescriptor.Base = (UINTN) IdtTable;

+      AsmWriteIdtr (&gLidtDescriptor);

+    }

+    //

     // Go to Long Mode. Interrupts will not get turned on until the CPU AP is loaded.

     // Call x64 drivers passing in single argument, a pointer to the HOBs.

     // 

diff --git a/MdeModulePkg/Core/DxeIplPeim/Ia32/IdtVectorAsm.S b/MdeModulePkg/Core/DxeIplPeim/Ia32/IdtVectorAsm.S
new file mode 100644
index 0000000..cbfcf61
--- /dev/null
+++ b/MdeModulePkg/Core/DxeIplPeim/Ia32/IdtVectorAsm.S
@@ -0,0 +1,88 @@
+/*

+;-------------------------------------------------------------------------------

+;

+; Copyright (c) 2007, Intel Corporation

+; All rights reserved. This program and the accompanying materials

+; are licensed and made available under the terms and conditions of the BSD License

+; which accompanies this distribution.  The full text of the license may be found at

+; http://opensource.org/licenses/bsd-license.php

+

+; THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,

+; WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.

+;

+;

+; Module Name:

+;

+;   IdtVectorAsm.S

+; 

+; Abstract:

+; 

+;

+;--------------------------------------------------------------------   --------

+*/

+

+    .text

+    .code32

+

+

+    .align  8

+    .globl  ASM_PFX(AsmGetVectorTemplatInfo)

+    .globl 	ASM_PFX(AsmVectorFixup)

+/*

+;

+;-----------------------------------------------------------------------

+;  Template of IDT Vector Handlers. 

+;

+;-----------------------------------------------------------------------

+*/

+@VectorTemplateBase:

+        pushl %eax

+        .byte 0x6a    #  push #VectorNum

+@VectorNum:

+        .byte 0

+        movl  CommonInterruptEntry, %eax

+        jmp   *%eax

+@VectorTemplateEnd:

+

+

+ASM_PFX(AsmGetVectorTemplatInfo):

+        movl  4(%esp), %ecx

+        movl  $@VectorTemplateBase, (%ecx)

+        movl  $(@VectorTemplateEnd - @VectorTemplateBase), %eax

+        ret

+

+ASM_PFX(AsmVectorFixup):

+        movl  8(%esp), %eax

+        movl  4(%esp), %ecx

+        movb  %al, (@VectorNum - @VectorTemplateBase)(%ecx)

+        ret

+

+/*

+; The follow algorithm is used for the common interrupt routine.

+

+;

+; +---------------------+ <-- 16-byte aligned ensured by processor

+; +    Old SS           +

+; +---------------------+

+; +    Old RSP          +

+; +---------------------+

+; +    RFlags           +

+; +---------------------+

+; +    CS               +

+; +---------------------+

+; +    RIP              +

+; +---------------------+

+; +    Error Code       +

+; +---------------------+

+; +    Vector Number    +

+; +---------------------+

+*/

+

+CommonInterruptEntry: 

+        cli

+@@:

+        jmp   @@

+

+

+

+

diff --git a/MdeModulePkg/Core/DxeIplPeim/Ia32/IdtVectorAsm.asm b/MdeModulePkg/Core/DxeIplPeim/Ia32/IdtVectorAsm.asm
new file mode 100644
index 0000000..46b4999
--- /dev/null
+++ b/MdeModulePkg/Core/DxeIplPeim/Ia32/IdtVectorAsm.asm
@@ -0,0 +1,95 @@
+;-------------------------------------------------------------------------------

+;

+; Copyright (c) 2007, Intel Corporation

+; All rights reserved. This program and the accompanying materials

+; are licensed and made available under the terms and conditions of the BSD License

+; which accompanies this distribution.  The full text of the license may be found at

+; http://opensource.org/licenses/bsd-license.php

+

+; THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,

+; WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.

+;

+;

+; Module Name:

+;

+;   IdtVectorAsm.asm

+; 

+; Abstract:

+; 

+;

+;-------------------------------------------------------------------------------

+

+

+    .686p

+    .model  flat,C

+    .code

+

+;

+;------------------------------------------------------------------------------

+;  Generic IDT Vector Handlers for the Host. 

+;

+;------------------------------------------------------------------------------

+

+ALIGN   8

+PUBLIC  AsmGetVectorTemplatInfo

+PUBLIC  AsmVectorFixup

+

+PUBLIC  AsmVectorFixup

+

+@VectorTemplateBase:

+        push  eax

+        db    6ah       ; push #VectorNumber

+@VectorNum:

+        db    0

+        mov   eax, CommonInterruptEntry

+        jmp   eax

+@VectorTemplateEnd:

+

+

+AsmGetVectorTemplatInfo PROC

+        mov   ecx, [esp + 4]

+        mov   [ecx], @VectorTemplateBase

+        mov   eax, (@VectorTemplateEnd - @VectorTemplateBase)

+        ret

+AsmGetVectorTemplatInfo ENDP

+

+

+AsmVectorFixup PROC

+        mov   eax, dword ptr [esp + 8]

+        mov   ecx, [esp + 4]

+        mov   [ecx + (@VectorNum - @VectorTemplateBase)], al

+        ret

+AsmVectorFixup ENDP

+

+

+;---------------------------------------;

+; CommonInterruptEntry                  ;

+;---------------------------------------;

+; The follow algorithm is used for the common interrupt routine.

+

+;

+; +---------------------+ <-- 16-byte aligned ensured by processor

+; +    Old SS           +

+; +---------------------+

+; +    Old RSP          +

+; +---------------------+

+; +    RFlags           +

+; +---------------------+

+; +    CS               +

+; +---------------------+

+; +    RIP              +

+; +---------------------+

+; +    Error Code       +

+; +---------------------+

+; +    Vector Number    +

+; +---------------------+

+

+CommonInterruptEntry PROC 

+  cli

+ 

+  jmp $

+CommonInterruptEntry ENDP

+

+END

+

+

diff --git a/MdeModulePkg/Core/DxeIplPeim/Ia32/VirtualMemory.h b/MdeModulePkg/Core/DxeIplPeim/Ia32/VirtualMemory.h
index 89a7f2e..18fbcb9 100644
--- a/MdeModulePkg/Core/DxeIplPeim/Ia32/VirtualMemory.h
+++ b/MdeModulePkg/Core/DxeIplPeim/Ia32/VirtualMemory.h
@@ -49,6 +49,12 @@ typedef union {
   UINT64  Uint64;

 } IA32_GDT;

 

+typedef struct {

+  IA32_IDT_GATE_DESCRIPTOR  Ia32IdtEntry;

+  UINT32                    Offset32To63;

+  UINT32                    Reserved;

+} X64_IDT_GATE_DESCRIPTOR;

+

 //

 // Page-Map Level-4 Offset (PML4) and

 // Page-Directory-Pointer Offset (PDPE) entries 4K & 2MB

@@ -104,4 +110,38 @@ CreateIdentityMappingPageTables (
   )

 ;

 

+

+/**

+ 

+  Fix up the vector number in the vector code.

+ 

+  @param VectorBase   Base address of the vector handler.

+ 

+  @param VectorNum    Index of vector.

+ 

+**/

+VOID

+EFIAPI

+AsmVectorFixup (

+  VOID    *VectorBase,

+  UINT8   VectorNum

+  );

+

+

+/**

+ 

+  Get the information of vector template.

+  

+  @param TemplateBase   Base address of the template code.

+ 

+  @return               Size of the Template code.

+ 

+**/

+UINTN

+EFIAPI

+AsmGetVectorTemplatInfo (

+  OUT   VOID  **TemplateBase

+  );

+

+

 #endif