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-rw-r--r--UefiPayloadPkg/UefiPayloadEntry/Ia32/DxeLoadFunc.c182
1 files changed, 99 insertions, 83 deletions
diff --git a/UefiPayloadPkg/UefiPayloadEntry/Ia32/DxeLoadFunc.c b/UefiPayloadPkg/UefiPayloadEntry/Ia32/DxeLoadFunc.c
index f999da9c66..c66e56aee1 100644
--- a/UefiPayloadPkg/UefiPayloadEntry/Ia32/DxeLoadFunc.c
+++ b/UefiPayloadPkg/UefiPayloadEntry/Ia32/DxeLoadFunc.c
@@ -18,44 +18,62 @@ SPDX-License-Identifier: BSD-2-Clause-Patent
#include "VirtualMemory.h"
#include "UefiPayloadEntry.h"
-#define STACK_SIZE 0x20000
-#define IDT_ENTRY_COUNT 32
+#define STACK_SIZE 0x20000
+#define IDT_ENTRY_COUNT 32
typedef struct _X64_IDT_TABLE {
//
// Reserved 4 bytes preceding PeiService and IdtTable,
// since IDT base address should be 8-byte alignment.
//
- UINT32 Reserved;
- CONST EFI_PEI_SERVICES **PeiService;
- X64_IDT_GATE_DESCRIPTOR IdtTable[IDT_ENTRY_COUNT];
+ UINT32 Reserved;
+ CONST EFI_PEI_SERVICES **PeiService;
+ X64_IDT_GATE_DESCRIPTOR IdtTable[IDT_ENTRY_COUNT];
} X64_IDT_TABLE;
//
// 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
+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 = {
+GLOBAL_REMOVE_IF_UNREFERENCED CONST IA32_DESCRIPTOR gGdt = {
sizeof (gGdtEntries) - 1,
- (UINTN) gGdtEntries
- };
+ (UINTN)gGdtEntries
+};
-GLOBAL_REMOVE_IF_UNREFERENCED IA32_DESCRIPTOR gLidtDescriptor = {
+GLOBAL_REMOVE_IF_UNREFERENCED IA32_DESCRIPTOR gLidtDescriptor = {
sizeof (X64_IDT_GATE_DESCRIPTOR) * IDT_ENTRY_COUNT - 1,
0
};
@@ -72,21 +90,21 @@ GLOBAL_REMOVE_IF_UNREFERENCED IA32_DESCRIPTOR gLidtDescriptor = {
**/
UINTN
Create4GPageTablesIa32Pae (
- IN EFI_PHYSICAL_ADDRESS StackBase,
- IN UINTN StackSize
+ IN EFI_PHYSICAL_ADDRESS StackBase,
+ IN UINTN StackSize
)
{
- UINT8 PhysicalAddressBits;
- EFI_PHYSICAL_ADDRESS PhysicalAddress;
- UINTN IndexOfPdpEntries;
- UINTN IndexOfPageDirectoryEntries;
- UINT32 NumberOfPdpEntriesNeeded;
- PAGE_MAP_AND_DIRECTORY_POINTER *PageMap;
- PAGE_MAP_AND_DIRECTORY_POINTER *PageDirectoryPointerEntry;
- PAGE_TABLE_ENTRY *PageDirectoryEntry;
- UINTN TotalPagesNum;
- UINTN PageAddress;
- UINT64 AddressEncMask;
+ UINT8 PhysicalAddressBits;
+ EFI_PHYSICAL_ADDRESS PhysicalAddress;
+ UINTN IndexOfPdpEntries;
+ UINTN IndexOfPageDirectoryEntries;
+ UINT32 NumberOfPdpEntriesNeeded;
+ PAGE_MAP_AND_DIRECTORY_POINTER *PageMap;
+ PAGE_MAP_AND_DIRECTORY_POINTER *PageDirectoryPointerEntry;
+ PAGE_TABLE_ENTRY *PageDirectoryEntry;
+ UINTN TotalPagesNum;
+ UINTN PageAddress;
+ UINT64 AddressEncMask;
//
// Make sure AddressEncMask is contained to smallest supported address field
@@ -98,53 +116,54 @@ Create4GPageTablesIa32Pae (
//
// Calculate the table entries needed.
//
- NumberOfPdpEntriesNeeded = (UINT32) LShiftU64 (1, (PhysicalAddressBits - 30));
+ NumberOfPdpEntriesNeeded = (UINT32)LShiftU64 (1, (PhysicalAddressBits - 30));
TotalPagesNum = NumberOfPdpEntriesNeeded + 1;
- PageAddress = (UINTN) AllocatePageTableMemory (TotalPagesNum);
+ PageAddress = (UINTN)AllocatePageTableMemory (TotalPagesNum);
ASSERT (PageAddress != 0);
- PageMap = (VOID *) PageAddress;
+ PageMap = (VOID *)PageAddress;
PageAddress += SIZE_4KB;
PageDirectoryPointerEntry = PageMap;
- PhysicalAddress = 0;
+ PhysicalAddress = 0;
for (IndexOfPdpEntries = 0; IndexOfPdpEntries < NumberOfPdpEntriesNeeded; IndexOfPdpEntries++, PageDirectoryPointerEntry++) {
//
// Each Directory Pointer entries points to a page of Page Directory entires.
// So allocate space for them and fill them in in the IndexOfPageDirectoryEntries loop.
//
- PageDirectoryEntry = (VOID *) PageAddress;
- PageAddress += SIZE_4KB;
+ PageDirectoryEntry = (VOID *)PageAddress;
+ PageAddress += SIZE_4KB;
//
// Fill in a Page Directory Pointer Entries
//
- PageDirectoryPointerEntry->Uint64 = (UINT64) (UINTN) PageDirectoryEntry | AddressEncMask;
+ PageDirectoryPointerEntry->Uint64 = (UINT64)(UINTN)PageDirectoryEntry | AddressEncMask;
PageDirectoryPointerEntry->Bits.Present = 1;
for (IndexOfPageDirectoryEntries = 0; IndexOfPageDirectoryEntries < 512; IndexOfPageDirectoryEntries++, PageDirectoryEntry++, PhysicalAddress += SIZE_2MB) {
- if ((IsNullDetectionEnabled () && PhysicalAddress == 0)
- || ((PhysicalAddress < StackBase + StackSize)
- && ((PhysicalAddress + SIZE_2MB) > StackBase))) {
+ if ( (IsNullDetectionEnabled () && (PhysicalAddress == 0))
+ || ( (PhysicalAddress < StackBase + StackSize)
+ && ((PhysicalAddress + SIZE_2MB) > StackBase)))
+ {
//
// Need to split this 2M page that covers stack range.
//
- Split2MPageTo4K (PhysicalAddress, (UINT64 *) PageDirectoryEntry, StackBase, StackSize, 0, 0);
+ Split2MPageTo4K (PhysicalAddress, (UINT64 *)PageDirectoryEntry, StackBase, StackSize, 0, 0);
} else {
//
// Fill in the Page Directory entries
//
- PageDirectoryEntry->Uint64 = (UINT64) PhysicalAddress | AddressEncMask;
+ PageDirectoryEntry->Uint64 = (UINT64)PhysicalAddress | AddressEncMask;
PageDirectoryEntry->Bits.ReadWrite = 1;
- PageDirectoryEntry->Bits.Present = 1;
- PageDirectoryEntry->Bits.MustBe1 = 1;
+ PageDirectoryEntry->Bits.Present = 1;
+ PageDirectoryEntry->Bits.MustBe1 = 1;
}
}
}
- for (; IndexOfPdpEntries < 512; IndexOfPdpEntries++, PageDirectoryPointerEntry++) {
+ for ( ; IndexOfPdpEntries < 512; IndexOfPdpEntries++, PageDirectoryPointerEntry++) {
ZeroMem (
PageDirectoryPointerEntry,
sizeof (PAGE_MAP_AND_DIRECTORY_POINTER)
@@ -157,7 +176,7 @@ Create4GPageTablesIa32Pae (
//
EnablePageTableProtection ((UINTN)PageMap, FALSE);
- return (UINTN) PageMap;
+ return (UINTN)PageMap;
}
/**
@@ -172,9 +191,9 @@ IsIa32PaeSupport (
VOID
)
{
- UINT32 RegEax;
- UINT32 RegEdx;
- BOOLEAN Ia32PaeSupport;
+ UINT32 RegEax;
+ UINT32 RegEdx;
+ BOOLEAN Ia32PaeSupport;
Ia32PaeSupport = FALSE;
AsmCpuid (0x0, &RegEax, NULL, NULL, NULL);
@@ -235,19 +254,19 @@ ToBuildPageTable (
**/
VOID
HandOffToDxeCore (
- IN EFI_PHYSICAL_ADDRESS DxeCoreEntryPoint,
- IN EFI_PEI_HOB_POINTERS HobList
+ IN EFI_PHYSICAL_ADDRESS DxeCoreEntryPoint,
+ IN EFI_PEI_HOB_POINTERS HobList
)
{
- 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;
- X64_IDT_TABLE *IdtTableForX64;
+ 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;
+ X64_IDT_TABLE *IdtTableForX64;
//
// Clear page 0 and mark it as allocated if NULL pointer detection is enabled.
@@ -257,10 +276,10 @@ HandOffToDxeCore (
BuildMemoryAllocationHob (0, EFI_PAGES_TO_SIZE (1), EfiBootServicesData);
}
- BaseOfStack = (EFI_PHYSICAL_ADDRESS) (UINTN) AllocatePages (EFI_SIZE_TO_PAGES (STACK_SIZE));
+ BaseOfStack = (EFI_PHYSICAL_ADDRESS)(UINTN)AllocatePages (EFI_SIZE_TO_PAGES (STACK_SIZE));
ASSERT (BaseOfStack != 0);
- if (FeaturePcdGet(PcdDxeIplSwitchToLongMode)) {
+ 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.
@@ -275,7 +294,7 @@ HandOffToDxeCore (
//
// x64 Calling Conventions requires that the stack must be aligned to 16 bytes
//
- TopOfStack = (EFI_PHYSICAL_ADDRESS) (UINTN) ALIGN_POINTER (TopOfStack, 16);
+ 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
@@ -301,36 +320,35 @@ HandOffToDxeCore (
SizeOfTemplate = AsmGetVectorTemplatInfo (&TemplateBase);
- VectorAddress = (EFI_PHYSICAL_ADDRESS) (UINTN) AllocatePages (EFI_SIZE_TO_PAGES(sizeof (X64_IDT_TABLE) + SizeOfTemplate * IDT_ENTRY_COUNT));
+ VectorAddress = (EFI_PHYSICAL_ADDRESS)(UINTN)AllocatePages (EFI_SIZE_TO_PAGES (sizeof (X64_IDT_TABLE) + SizeOfTemplate * IDT_ENTRY_COUNT));
ASSERT (VectorAddress != 0);
//
// Store EFI_PEI_SERVICES** in the 4 bytes immediately preceding IDT to avoid that
// it may not be gotten correctly after IDT register is re-written.
//
- IdtTableForX64 = (X64_IDT_TABLE *) (UINTN) VectorAddress;
+ IdtTableForX64 = (X64_IDT_TABLE *)(UINTN)VectorAddress;
IdtTableForX64->PeiService = NULL;
- VectorAddress = (EFI_PHYSICAL_ADDRESS) (UINTN) (IdtTableForX64 + 1);
+ VectorAddress = (EFI_PHYSICAL_ADDRESS)(UINTN)(IdtTableForX64 + 1);
IdtTable = IdtTableForX64->IdtTable;
for (Index = 0; Index < IDT_ENTRY_COUNT; 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.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) (RShiftU64 (VectorAddress, 16));
- IdtTable[Index].Offset32To63 = (UINT32) (RShiftU64 (VectorAddress, 32));
- IdtTable[Index].Reserved = 0;
+ IdtTable[Index].Ia32IdtEntry.Bits.OffsetLow = (UINT16)VectorAddress;
+ IdtTable[Index].Ia32IdtEntry.Bits.OffsetHigh = (UINT16)(RShiftU64 (VectorAddress, 16));
+ IdtTable[Index].Offset32To63 = (UINT32)(RShiftU64 (VectorAddress, 32));
+ IdtTable[Index].Reserved = 0;
- CopyMem ((VOID *) (UINTN) VectorAddress, TemplateBase, SizeOfTemplate);
- AsmVectorFixup ((VOID *) (UINTN) VectorAddress, (UINT8) Index);
+ CopyMem ((VOID *)(UINTN)VectorAddress, TemplateBase, SizeOfTemplate);
+ AsmVectorFixup ((VOID *)(UINTN)VectorAddress, (UINT8)Index);
VectorAddress += SizeOfTemplate;
}
- gLidtDescriptor.Base = (UINTN) IdtTable;
-
+ gLidtDescriptor.Base = (UINTN)IdtTable;
AsmWriteIdtr (&gLidtDescriptor);
@@ -358,8 +376,6 @@ HandOffToDxeCore (
// 32bit UEFI payload could be supported if required later.
DEBUG ((DEBUG_ERROR, "NOT support 32bit UEFI payload\n"));
ASSERT (FALSE);
- CpuDeadLoop();
+ CpuDeadLoop ();
}
-
}
-
generated by cgit (git 2.34.1) at 2025-02-23 18:42:24 +0000