diff options
Diffstat (limited to 'EdkModulePkg/Core/DxeIplPeim/Ia32/DxeLoadFunc.c')
| -rw-r--r-- | EdkModulePkg/Core/DxeIplPeim/Ia32/DxeLoadFunc.c | 131 |
1 files changed, 0 insertions, 131 deletions
diff --git a/EdkModulePkg/Core/DxeIplPeim/Ia32/DxeLoadFunc.c b/EdkModulePkg/Core/DxeIplPeim/Ia32/DxeLoadFunc.c deleted file mode 100644 index 7c9beff5f6..0000000000 --- a/EdkModulePkg/Core/DxeIplPeim/Ia32/DxeLoadFunc.c +++ /dev/null @@ -1,131 +0,0 @@ -/*++
-
-Copyright (c) 2006, 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:
-
- DxeLoadFunc.c
-
-Abstract:
-
- Ia32-specifc functionality for DxeLoad.
-
---*/
-
-#include "DxeIpl.h"
-#include "VirtualMemory.h"
-
-//
-// Global Descriptor Table (GDT) -// -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
-/* 0x10 */ {{0xffff, 0, 0, 0xf, 1, 0, 1, 0xf, 0, 0, 1, 1, 0}}, //linear code segment descriptor
-/* 0x18 */ {{0xffff, 0, 0, 0x3, 1, 0, 1, 0xf, 0, 0, 1, 1, 0}}, //system data segment descriptor
-/* 0x20 */ {{0xffff, 0, 0, 0xa, 1, 0, 1, 0xf, 0, 0, 1, 1, 0}}, //system code segment descriptor
-/* 0x28 */ {{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}}, //spare segment descriptor
-/* 0x30 */ {{0xffff, 0, 0, 0x2, 1, 0, 1, 0xf, 0, 0, 1, 1, 0}}, //system data segment descriptor
-/* 0x38 */ {{0xffff, 0, 0, 0xa, 1, 0, 1, 0xf, 0, 1, 0, 1, 0}}, //system code segment descriptor
-/* 0x40 */ {{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}}, //spare segment descriptor
-};
-
-//
-// IA32 Gdt register
-//
-GLOBAL_REMOVE_IF_UNREFERENCED CONST IA32_DESCRIPTOR gGdt = {
- sizeof (gGdtEntries) - 1,
- (UINTN) gGdtEntries
- };
-
-VOID
-HandOffToDxeCore (
- IN EFI_PHYSICAL_ADDRESS DxeCoreEntryPoint,
- IN EFI_PEI_HOB_POINTERS HobList,
- IN EFI_PEI_PPI_DESCRIPTOR *EndOfPeiSignal
- )
-{
- EFI_STATUS Status;
- EFI_PHYSICAL_ADDRESS BaseOfStack;
- EFI_PHYSICAL_ADDRESS TopOfStack;
- UINTN PageTables;
-
- Status = PeiServicesAllocatePages (EfiBootServicesData, EFI_SIZE_TO_PAGES (STACK_SIZE), &BaseOfStack);
- ASSERT_EFI_ERROR (Status);
-
- if (FeaturePcdGet(PcdDxeIplSwitchToLongMode)) {
- //
- // Compute the top of the stack we were allocated, which is used to load X64 dxe core.
- // Pre-allocate a 32 bytes which confroms to x64 calling convention.
- //
- // The first four parameters to a function are passed in rcx, rdx, r8 and r9.
- // Any further parameters are pushed on the stack. Furthermore, space (4 * 8bytes) for the
- // register parameters is reserved on the stack, in case the called function
- // wants to spill them; this is important if the function is variadic.
- //
- 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
- //
- TopOfStack = (EFI_PHYSICAL_ADDRESS) (UINTN) ALIGN_POINTER (TopOfStack, 16);
-
- //
- // Load the GDT of Go64. Since the GDT of 32-bit Tiano locates in the BS_DATA
- // memory, it may be corrupted when copying FV to high-end memory
- //
- AsmWriteGdtr (&gGdt);
- //
- // Create page table and save PageMapLevel4 to CR3
- //
- PageTables = CreateIdentityMappingPageTables ();
-
- //
- // End of PEI phase singal
- //
- Status = PeiServicesInstallPpi (EndOfPeiSignal);
- ASSERT_EFI_ERROR (Status);
-
- AsmWriteCr3 (PageTables);
- //
- // 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.
- //
- AsmEnablePaging64 (
- SYS_CODE64_SEL,
- DxeCoreEntryPoint,
- (EFI_PHYSICAL_ADDRESS)(UINTN)(HobList.Raw),
- 0,
- TopOfStack
- );
- } else {
- //
- // Compute the top of the stack we were allocated. Pre-allocate a UINTN
- // for safety.
- //
- TopOfStack = BaseOfStack + EFI_SIZE_TO_PAGES (STACK_SIZE) * EFI_PAGE_SIZE - CPU_STACK_ALIGNMENT;
- TopOfStack = (EFI_PHYSICAL_ADDRESS) (UINTN) ALIGN_POINTER (TopOfStack, CPU_STACK_ALIGNMENT);
-
- //
- // End of PEI phase singal
- //
- Status = PeiServicesInstallPpi (EndOfPeiSignal);
- ASSERT_EFI_ERROR (Status);
-
- SwitchStack (
- (SWITCH_STACK_ENTRY_POINT)(UINTN)DxeCoreEntryPoint,
- HobList.Raw,
- NULL,
- (VOID *) (UINTN) TopOfStack
- );
- }
-}
-
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