diff options
| -rw-r--r-- | UefiCpuPkg/PiSmmCpuDxeSmm/SmmProfile.c | 114 |
1 files changed, 57 insertions, 57 deletions
diff --git a/UefiCpuPkg/PiSmmCpuDxeSmm/SmmProfile.c b/UefiCpuPkg/PiSmmCpuDxeSmm/SmmProfile.c index 3b2f967355..e2b6a2d9b2 100644 --- a/UefiCpuPkg/PiSmmCpuDxeSmm/SmmProfile.c +++ b/UefiCpuPkg/PiSmmCpuDxeSmm/SmmProfile.c @@ -535,15 +535,15 @@ InitPaging ( )
{
UINT64 *Pml4;
- UINT64 *Pde;
- UINT64 *Pte;
+ UINT64 *Pdpt;
+ UINT64 *Pd;
UINT64 *Pt;
UINTN Address;
- UINTN Level1;
- UINTN Level2;
- UINTN Level3;
- UINTN Level4;
- UINTN NumberOfPdpEntries;
+ UINTN Pml4Index;
+ UINTN PdptIndex;
+ UINTN PdIndex;
+ UINTN PtIndex;
+ UINTN NumberOfPdptEntries;
UINTN NumberOfPml4Entries;
UINTN SizeOfMemorySpace;
BOOLEAN Nx;
@@ -556,143 +556,143 @@ InitPaging ( //
if (SizeOfMemorySpace <= 39 ) {
NumberOfPml4Entries = 1;
- NumberOfPdpEntries = (UINT32)LShiftU64 (1, (SizeOfMemorySpace - 30));
+ NumberOfPdptEntries = (UINT32)LShiftU64 (1, (SizeOfMemorySpace - 30));
} else {
NumberOfPml4Entries = (UINT32)LShiftU64 (1, (SizeOfMemorySpace - 39));
- NumberOfPdpEntries = 512;
+ NumberOfPdptEntries = 512;
}
} else {
NumberOfPml4Entries = 1;
- NumberOfPdpEntries = 4;
+ NumberOfPdptEntries = 4;
}
//
// Go through page table and change 2MB-page into 4KB-page.
//
- for (Level1 = 0; Level1 < NumberOfPml4Entries; Level1++) {
+ for (Pml4Index = 0; Pml4Index < NumberOfPml4Entries; Pml4Index++) {
if (sizeof (UINTN) == sizeof (UINT64)) {
- if ((Pml4[Level1] & IA32_PG_P) == 0) {
+ if ((Pml4[Pml4Index] & IA32_PG_P) == 0) {
//
- // If Pml4 entry does not exist, skip it
+ // If PML4 entry does not exist, skip it
//
continue;
}
- Pde = (UINT64 *)(UINTN)(Pml4[Level1] & ~mAddressEncMask & PHYSICAL_ADDRESS_MASK);
+ Pdpt = (UINT64 *)(UINTN)(Pml4[Pml4Index] & ~mAddressEncMask & PHYSICAL_ADDRESS_MASK);
} else {
- Pde = (UINT64*)(UINTN)mSmmProfileCr3;
+ Pdpt = (UINT64*)(UINTN)mSmmProfileCr3;
}
- for (Level2 = 0; Level2 < NumberOfPdpEntries; Level2++, Pde++) {
- if ((*Pde & IA32_PG_P) == 0) {
+ for (PdptIndex = 0; PdptIndex < NumberOfPdptEntries; PdptIndex++, Pdpt++) {
+ if ((*Pdpt & IA32_PG_P) == 0) {
//
- // If PDE entry does not exist, skip it
+ // If PDPT entry does not exist, skip it
//
continue;
}
- if ((*Pde & IA32_PG_PS) != 0) {
+ if ((*Pdpt & IA32_PG_PS) != 0) {
//
// This is 1G entry, skip it
//
continue;
}
- Pte = (UINT64 *)(UINTN)(*Pde & ~mAddressEncMask & PHYSICAL_ADDRESS_MASK);
- if (Pte == 0) {
+ Pd = (UINT64 *)(UINTN)(*Pdpt & ~mAddressEncMask & PHYSICAL_ADDRESS_MASK);
+ if (Pd == 0) {
continue;
}
- for (Level3 = 0; Level3 < SIZE_4KB / sizeof (*Pte); Level3++, Pte++) {
- if ((*Pte & IA32_PG_P) == 0) {
+ for (PdIndex = 0; PdIndex < SIZE_4KB / sizeof (*Pd); PdIndex++, Pd++) {
+ if ((*Pd & IA32_PG_P) == 0) {
//
- // If PTE entry does not exist, skip it
+ // If PD entry does not exist, skip it
//
continue;
}
- Address = (((Level2 << 9) + Level3) << 21);
+ Address = (((PdptIndex << 9) + PdIndex) << 21);
//
// If it is 2M page, check IsAddressSplit()
//
- if (((*Pte & IA32_PG_PS) != 0) && IsAddressSplit (Address)) {
+ if (((*Pd & IA32_PG_PS) != 0) && IsAddressSplit (Address)) {
//
// Based on current page table, create 4KB page table for split area.
//
- ASSERT (Address == (*Pte & PHYSICAL_ADDRESS_MASK));
+ ASSERT (Address == (*Pd & PHYSICAL_ADDRESS_MASK));
Pt = AllocatePageTableMemory (1);
ASSERT (Pt != NULL);
// Split it
- for (Level4 = 0; Level4 < SIZE_4KB / sizeof(*Pt); Level4++) {
- Pt[Level4] = Address + ((Level4 << 12) | mAddressEncMask | PAGE_ATTRIBUTE_BITS);
+ for (PtIndex = 0; PtIndex < SIZE_4KB / sizeof(*Pt); PtIndex++) {
+ Pt[PtIndex] = Address + ((PtIndex << 12) | mAddressEncMask | PAGE_ATTRIBUTE_BITS);
} // end for PT
- *Pte = (UINT64)(UINTN)Pt | mAddressEncMask | PAGE_ATTRIBUTE_BITS;
+ *Pd = (UINT64)(UINTN)Pt | mAddressEncMask | PAGE_ATTRIBUTE_BITS;
} // end if IsAddressSplit
- } // end for PTE
- } // end for PDE
- }
+ } // end for PD
+ } // end for PDPT
+ } // end for PML4
//
// Go through page table and set several page table entries to absent or execute-disable.
//
DEBUG ((EFI_D_INFO, "Patch page table start ...\n"));
- for (Level1 = 0; Level1 < NumberOfPml4Entries; Level1++) {
+ for (Pml4Index = 0; Pml4Index < NumberOfPml4Entries; Pml4Index++) {
if (sizeof (UINTN) == sizeof (UINT64)) {
- if ((Pml4[Level1] & IA32_PG_P) == 0) {
+ if ((Pml4[Pml4Index] & IA32_PG_P) == 0) {
//
- // If Pml4 entry does not exist, skip it
+ // If PML4 entry does not exist, skip it
//
continue;
}
- Pde = (UINT64 *)(UINTN)(Pml4[Level1] & ~mAddressEncMask & PHYSICAL_ADDRESS_MASK);
+ Pdpt = (UINT64 *)(UINTN)(Pml4[Pml4Index] & ~mAddressEncMask & PHYSICAL_ADDRESS_MASK);
} else {
- Pde = (UINT64*)(UINTN)mSmmProfileCr3;
+ Pdpt = (UINT64*)(UINTN)mSmmProfileCr3;
}
- for (Level2 = 0; Level2 < NumberOfPdpEntries; Level2++, Pde++) {
- if ((*Pde & IA32_PG_P) == 0) {
+ for (PdptIndex = 0; PdptIndex < NumberOfPdptEntries; PdptIndex++, Pdpt++) {
+ if ((*Pdpt & IA32_PG_P) == 0) {
//
- // If PDE entry does not exist, skip it
+ // If PDPT entry does not exist, skip it
//
continue;
}
- if ((*Pde & IA32_PG_PS) != 0) {
+ if ((*Pdpt & IA32_PG_PS) != 0) {
//
// This is 1G entry, set NX bit and skip it
//
if (mXdSupported) {
- *Pde = *Pde | IA32_PG_NX;
+ *Pdpt = *Pdpt | IA32_PG_NX;
}
continue;
}
- Pte = (UINT64 *)(UINTN)(*Pde & ~mAddressEncMask & PHYSICAL_ADDRESS_MASK);
- if (Pte == 0) {
+ Pd = (UINT64 *)(UINTN)(*Pdpt & ~mAddressEncMask & PHYSICAL_ADDRESS_MASK);
+ if (Pd == 0) {
continue;
}
- for (Level3 = 0; Level3 < SIZE_4KB / sizeof (*Pte); Level3++, Pte++) {
- if ((*Pte & IA32_PG_P) == 0) {
+ for (PdIndex = 0; PdIndex < SIZE_4KB / sizeof (*Pd); PdIndex++, Pd++) {
+ if ((*Pd & IA32_PG_P) == 0) {
//
- // If PTE entry does not exist, skip it
+ // If PD entry does not exist, skip it
//
continue;
}
- Address = (((Level2 << 9) + Level3) << 21);
+ Address = (((PdptIndex << 9) + PdIndex) << 21);
- if ((*Pte & IA32_PG_PS) != 0) {
+ if ((*Pd & IA32_PG_PS) != 0) {
// 2MB page
if (!IsAddressValid (Address, &Nx)) {
//
// Patch to remove Present flag and RW flag
//
- *Pte = *Pte & (INTN)(INT32)(~PAGE_ATTRIBUTE_BITS);
+ *Pd = *Pd & (INTN)(INT32)(~PAGE_ATTRIBUTE_BITS);
}
if (Nx && mXdSupported) {
- *Pte = *Pte | IA32_PG_NX;
+ *Pd = *Pd | IA32_PG_NX;
}
} else {
// 4KB page
- Pt = (UINT64 *)(UINTN)(*Pte & ~mAddressEncMask & PHYSICAL_ADDRESS_MASK);
+ Pt = (UINT64 *)(UINTN)(*Pd & ~mAddressEncMask & PHYSICAL_ADDRESS_MASK);
if (Pt == 0) {
continue;
}
- for (Level4 = 0; Level4 < SIZE_4KB / sizeof(*Pt); Level4++, Pt++) {
+ for (PtIndex = 0; PtIndex < SIZE_4KB / sizeof(*Pt); PtIndex++, Pt++) {
if (!IsAddressValid (Address, &Nx)) {
*Pt = *Pt & (INTN)(INT32)(~PAGE_ATTRIBUTE_BITS);
}
@@ -702,9 +702,9 @@ InitPaging ( Address += SIZE_4KB;
} // end for PT
} // end if PS
- } // end for PTE
- } // end for PDE
- }
+ } // end for PD
+ } // end for PDPT
+ } // end for PML4
//
// Flush TLB
|