[edk2-devel] [PATCH 10/10] CpuPageTableLib: define IA32_PAGE_LEVEL enum type internally
Ni, Ray
ray.ni at intel.com
Mon Jul 18 13:18:31 UTC 2022
The change doesn't change functionality behavior.
Signed-off-by: Ray Ni <ray.ni at intel.com>
Cc: Zhiguang Liu <zhiguang.liu at intel.com>
Cc: Eric Dong <eric.dong at intel.com>
---
UefiCpuPkg/Library/CpuPageTableLib/CpuPageTable.h | 8 ++++++++
UefiCpuPkg/Library/CpuPageTableLib/CpuPageTableMap.c | 12 ++++++------
2 files changed, 14 insertions(+), 6 deletions(-)
diff --git a/UefiCpuPkg/Library/CpuPageTableLib/CpuPageTable.h b/UefiCpuPkg/Library/CpuPageTableLib/CpuPageTable.h
index 627f84e4e2..8d856d7c7e 100644
--- a/UefiCpuPkg/Library/CpuPageTableLib/CpuPageTable.h
+++ b/UefiCpuPkg/Library/CpuPageTableLib/CpuPageTable.h
@@ -20,6 +20,14 @@
#define REGION_LENGTH(l) LShiftU64 (1, (l) * 9 + 3)
+typedef enum {
+ Pte = 1,
+ Pde = 2,
+ Pdpte = 3,
+ Pml4 = 4,
+ Pml5 = 5
+} IA32_PAGE_LEVEL;
+
typedef struct {
UINT64 Present : 1; // 0 = Not present in memory, 1 = Present in memory
UINT64 ReadWrite : 1; // 0 = Read-Only, 1= Read/Write
diff --git a/UefiCpuPkg/Library/CpuPageTableLib/CpuPageTableMap.c b/UefiCpuPkg/Library/CpuPageTableLib/CpuPageTableMap.c
index 16e6697ed4..d3fdf13429 100644
--- a/UefiCpuPkg/Library/CpuPageTableLib/CpuPageTableMap.c
+++ b/UefiCpuPkg/Library/CpuPageTableLib/CpuPageTableMap.c
@@ -245,8 +245,8 @@ PageTableLibMapInLevel (
IN BOOLEAN Modify,
IN VOID *Buffer,
IN OUT INTN *BufferSize,
- IN UINTN Level,
- IN UINTN MaxLeafLevel,
+ IN IA32_PAGE_LEVEL Level,
+ IN IA32_PAGE_LEVEL MaxLeafLevel,
IN UINT64 LinearAddress,
IN UINT64 Length,
IN UINT64 Offset,
@@ -572,8 +572,8 @@ PageTableMap (
IA32_PAGING_ENTRY TopPagingEntry;
INTN RequiredSize;
UINT64 MaxLinearAddress;
- UINTN MaxLevel;
- UINTN MaxLeafLevel;
+ IA32_PAGE_LEVEL MaxLevel;
+ IA32_PAGE_LEVEL MaxLeafLevel;
IA32_MAP_ATTRIBUTE ParentAttribute;
if ((PagingMode == Paging32bit) || (PagingMode == PagingPae) || (PagingMode >= PagingModeMax)) {
@@ -606,8 +606,8 @@ PageTableMap (
return RETURN_INVALID_PARAMETER;
}
- MaxLeafLevel = (UINT8)PagingMode;
- MaxLevel = (UINT8)(PagingMode >> 8);
+ MaxLeafLevel = (IA32_PAGE_LEVEL)(UINT8)PagingMode;
+ MaxLevel = (IA32_PAGE_LEVEL)(UINT8)(PagingMode >> 8);
MaxLinearAddress = LShiftU64 (1, 12 + MaxLevel * 9);
if ((LinearAddress > MaxLinearAddress) || (Length > MaxLinearAddress - LinearAddress)) {
--
2.35.1.windows.2
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