diff options
| author | qhuang8 <qhuang8@6f19259b-4bc3-4df7-8a09-765794883524> | 2008-07-16 13:17:50 +0000 |
|---|---|---|
| committer | qhuang8 <qhuang8@6f19259b-4bc3-4df7-8a09-765794883524> | 2008-07-16 13:17:50 +0000 |
| commit | b98da1b1f9b726f580d05f8680455122ba924da6 (patch) | |
| tree | 044866ae28f1a5ce4696f75bc350fda37faa3cfb /MdeModulePkg/Core/DxeIplPeim/Ia32/DxeLoadFunc.c | |
| parent | f8ea30263caf89a7ebefa417a642beea3db15ad7 (diff) | |
| download | edk2-platforms-b98da1b1f9b726f580d05f8680455122ba924da6.tar.xz | |
Code Scrub DxeIpl module.
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@5502 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'MdeModulePkg/Core/DxeIplPeim/Ia32/DxeLoadFunc.c')
| -rw-r--r-- | MdeModulePkg/Core/DxeIplPeim/Ia32/DxeLoadFunc.c | 17 |
1 files changed, 8 insertions, 9 deletions
diff --git a/MdeModulePkg/Core/DxeIplPeim/Ia32/DxeLoadFunc.c b/MdeModulePkg/Core/DxeIplPeim/Ia32/DxeLoadFunc.c index 7dfb3407b4..4458ddd8ff 100644 --- a/MdeModulePkg/Core/DxeIplPeim/Ia32/DxeLoadFunc.c +++ b/MdeModulePkg/Core/DxeIplPeim/Ia32/DxeLoadFunc.c @@ -18,7 +18,7 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. //
// Global Descriptor Table (GDT)
//
-GLOBAL_REMOVE_IF_UNREFERENCED IA32_GDT gGdtEntries [] = {
+GLOBAL_REMOVE_IF_UNREFERENCED IA32_GDT gGdtEntries[] = {
/* selector { Global Segment Descriptor } */
/* 0x00 */ {{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}}, //null descriptor
/* 0x08 */ {{0xffff, 0, 0, 0x2, 1, 0, 1, 0xf, 0, 0, 1, 1, 0}}, //linear data segment descriptor
@@ -44,10 +44,6 @@ GLOBAL_REMOVE_IF_UNREFERENCED IA32_DESCRIPTOR gLidtDescriptor = { 0
};
-
-
-
-
/**
Transfers control to DxeCore.
@@ -93,7 +89,7 @@ HandOffToDxeCore ( TopOfStack = BaseOfStack + EFI_SIZE_TO_PAGES (STACK_SIZE) * EFI_PAGE_SIZE - 32;
//
- // X64 Calling Conventions requires that the stack must be aligned to 16 bytes
+ // x64 Calling Conventions requires that the stack must be aligned to 16 bytes
//
TopOfStack = (EFI_PHYSICAL_ADDRESS) (UINTN) ALIGN_POINTER (TopOfStack, 16);
@@ -128,7 +124,6 @@ HandOffToDxeCore ( 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);
@@ -152,7 +147,8 @@ HandOffToDxeCore ( AsmWriteIdtr (&gLidtDescriptor);
}
//
- // Go to Long Mode. Interrupts will not get turned on until the CPU AP is loaded.
+ // Go to Long Mode and transfer control to DxeCore.
+ // Interrupts will not get turned on until the CPU AP is loaded.
// Call x64 drivers passing in single argument, a pointer to the HOBs.
//
AsmEnablePaging64 (
@@ -180,7 +176,10 @@ HandOffToDxeCore ( // Update the contents of BSP stack HOB to reflect the real stack info passed to DxeCore.
//
UpdateStackHob (BaseOfStack, STACK_SIZE);
-
+
+ //
+ // Transfer the control to the entry point of DxeCore.
+ //
SwitchStack (
(SWITCH_STACK_ENTRY_POINT)(UINTN)DxeCoreEntryPoint,
HobList.Raw,
|