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Code Scrub DxeIpl module.

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git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@5502 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
qhuang8
2008-07-16 13:17:50 +00:00
parent f8ea30263c
commit b98da1b1f9
9 changed files with 151 additions and 166 deletions
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17
MdeModulePkg/Core/DxeIplPeim/Ia32/DxeLoadFunc.c
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@@ -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,