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UefiCpuPkg/CpuPageTableLib: Add OUTPUT IsModified parameter. 

Add OUTPUT IsModified parameter in PageTableMap() to indicate
if page table has been modified. With this parameter, caller
can know if need to call FlushTlb when the page table is in CR3.

Signed-off-by: Dun Tan <dun.tan@intel.com>
Cc: Eric Dong <eric.dong@intel.com>
Reviewed-by: Ray Ni <ray.ni@intel.com>
Cc: Rahul Kumar <rahul1.kumar@intel.com>
Tested-by: Gerd Hoffmann <kraxel@redhat.com>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
This commit is contained in:
Dun Tan 2022-12-09 10:36:37 +08:00 committed by mergify[bot]
parent 3b2661d247
commit c8c6cf149d
5 changed files with 88 additions and 46 deletions
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4
UefiCpuPkg/Include/Library/CpuPageTableLib.h
View File

@ -74,6 +74,7 @@ typedef enum {
Page table entries that map the linear address range are reset to 0 before set to the new attribute
when a new physical base address is set.
@param[in] Mask The mask used for attribute. The corresponding field in Attribute is ignored if that in Mask is 0.
@param[out] IsModified TRUE means page table is modified. FALSE means page table is not modified.
@retval RETURN_UNSUPPORTED PagingMode is not supported.
@retval RETURN_INVALID_PARAMETER PageTable, BufferSize, Attribute or Mask is NULL.
@ -97,7 +98,8 @@ PageTableMap (
IN UINT64 LinearAddress,
IN UINT64 Length,
IN IA32_MAP_ATTRIBUTE *Attribute,
IN IA32_MAP_ATTRIBUTE *Mask
IN IA32_MAP_ATTRIBUTE *Mask,
OUT BOOLEAN *IsModified OPTIONAL
);
typedef struct {

46
UefiCpuPkg/Library/CpuPageTableLib/CpuPageTableMap.c
View File

@ -274,6 +274,7 @@ IsAttributesAndMaskValidForNonPresentEntry (
Page table entries that map the linear address range are reset to 0 before set to the new attribute
when a new physical base address is set.
@param[in] Mask The mask used for attribute. The corresponding field in Attribute is ignored if that in Mask is 0.
@param[out] IsModified TRUE means page table is modified. FALSE means page table is not modified.
@retval RETURN_INVALID_PARAMETER For non-present range, Mask->Bits.Present is 0 but some other attributes are provided.
@retval RETURN_INVALID_PARAMETER For non-present range, Mask->Bits.Present is 1, Attribute->Bits.Present is 1 but some other attributes are not provided.
@ -292,7 +293,8 @@ PageTableLibMapInLevel (
IN UINT64 Length,
IN UINT64 Offset,
IN IA32_MAP_ATTRIBUTE *Attribute,
IN IA32_MAP_ATTRIBUTE *Mask
IN IA32_MAP_ATTRIBUTE *Mask,
OUT BOOLEAN *IsModified
)
{
RETURN_STATUS Status;
@ -318,6 +320,8 @@ PageTableLibMapInLevel (
IA32_MAP_ATTRIBUTE LocalParentAttribute;
UINT64 PhysicalAddrInEntry;
UINT64 PhysicalAddrInAttr;
IA32_PAGING_ENTRY OriginalParentPagingEntry;
IA32_PAGING_ENTRY OriginalCurrentPagingEntry;
ASSERT (Level != 0);
ASSERT ((Attribute != NULL) && (Mask != NULL));
@ -333,6 +337,8 @@ PageTableLibMapInLevel (
LocalParentAttribute.Uint64 = ParentAttribute->Uint64;
ParentAttribute = &LocalParentAttribute;
OriginalParentPagingEntry.Uint64 = ParentPagingEntry->Uint64;
//
// RegionLength: 256T (1 << 48) 512G (1 << 39), 1G (1 << 30), 2M (1 << 21) or 4K (1 << 12).
//
@ -568,7 +574,15 @@ PageTableLibMapInLevel (
ASSERT (CreateNew || (Mask->Bits.Nx == 0) || (Attribute->Bits.Nx == 1));
}
//
// Check if any leaf PagingEntry is modified.
//
OriginalCurrentPagingEntry.Uint64 = CurrentPagingEntry->Uint64;
PageTableLibSetPle (Level, CurrentPagingEntry, Offset, Attribute, &CurrentMask);
if (OriginalCurrentPagingEntry.Uint64 != CurrentPagingEntry->Uint64) {
*IsModified = TRUE;
}
}
} else {
//
@ -591,7 +605,8 @@ PageTableLibMapInLevel (
Length,
Offset,
Attribute,
Mask
Mask,
IsModified
);
if (RETURN_ERROR (Status)) {
return Status;
@ -603,6 +618,14 @@ PageTableLibMapInLevel (
Index++;
}
//
// Check if ParentPagingEntry entry is modified here is enough. Except the changes happen in leaf PagingEntry during
// the while loop, if there is any other change happens in page table, the ParentPagingEntry must has been modified.
//
if (OriginalParentPagingEntry.Uint64 != ParentPagingEntry->Uint64) {
*IsModified = TRUE;
}
return RETURN_SUCCESS;
}
@ -623,6 +646,7 @@ PageTableLibMapInLevel (
Page table entries that map the linear address range are reset to 0 before set to the new attribute
when a new physical base address is set.
@param[in] Mask The mask used for attribute. The corresponding field in Attribute is ignored if that in Mask is 0.
@param[out] IsModified TRUE means page table is modified. FALSE means page table is not modified.
@retval RETURN_UNSUPPORTED PagingMode is not supported.
@retval RETURN_INVALID_PARAMETER PageTable, BufferSize, Attribute or Mask is NULL.
@ -646,7 +670,8 @@ PageTableMap (
IN UINT64 LinearAddress,
IN UINT64 Length,
IN IA32_MAP_ATTRIBUTE *Attribute,
IN IA32_MAP_ATTRIBUTE *Mask
IN IA32_MAP_ATTRIBUTE *Mask,
OUT BOOLEAN *IsModified OPTIONAL
)
{
RETURN_STATUS Status;
@ -656,6 +681,7 @@ PageTableMap (
IA32_PAGE_LEVEL MaxLevel;
IA32_PAGE_LEVEL MaxLeafLevel;
IA32_MAP_ATTRIBUTE ParentAttribute;
BOOLEAN LocalIsModified;
if (Length == 0) {
return RETURN_SUCCESS;
@ -718,6 +744,12 @@ PageTableMap (
TopPagingEntry.Pce.Nx = 0;
}
if (IsModified == NULL) {
IsModified = &LocalIsModified;
}
*IsModified = FALSE;
ParentAttribute.Uint64 = 0;
ParentAttribute.Bits.PageTableBaseAddress = 1;
ParentAttribute.Bits.Present = 1;
@ -741,8 +773,10 @@ PageTableMap (
Length,
0,
Attribute,
Mask
Mask,
IsModified
);
ASSERT (*IsModified == FALSE);
if (RETURN_ERROR (Status)) {
return Status;
}
@ -773,8 +807,10 @@ PageTableMap (
Length,
0,
Attribute,
Mask
Mask,
IsModified
);
if (!RETURN_ERROR (Status)) {
*PageTable = (UINTN)(TopPagingEntry.Uintn & IA32_PE_BASE_ADDRESS_MASK_40);
}

72
UefiCpuPkg/Library/CpuPageTableLib/UnitTest/CpuPageTableLibUnitTestHost.c
View File

@ -51,26 +51,26 @@ TestCaseForParameter (
//
// If the input linear address is not 4K align, it should return invalid parameter
//
UT_ASSERT_EQUAL (PageTableMap (&PageTable, PagingMode, &Buffer, &PageTableBufferSize, 1, SIZE_4KB, &MapAttribute, &MapMask), RETURN_INVALID_PARAMETER);
UT_ASSERT_EQUAL (PageTableMap (&PageTable, PagingMode, &Buffer, &PageTableBufferSize, 1, SIZE_4KB, &MapAttribute, &MapMask, NULL), RETURN_INVALID_PARAMETER);
//
// If the input PageTableBufferSize is not 4K align, it should return invalid parameter
//
PageTableBufferSize = 10;
UT_ASSERT_EQUAL (PageTableMap (&PageTable, PagingMode, &Buffer, &PageTableBufferSize, 0, SIZE_4KB, &MapAttribute, &MapMask), RETURN_INVALID_PARAMETER);
UT_ASSERT_EQUAL (PageTableMap (&PageTable, PagingMode, &Buffer, &PageTableBufferSize, 0, SIZE_4KB, &MapAttribute, &MapMask, NULL), RETURN_INVALID_PARAMETER);
//
// If the input PagingMode is Paging32bit, it should return invalid parameter
//
PageTableBufferSize = 0;
PagingMode = Paging32bit;
UT_ASSERT_EQUAL (PageTableMap (&PageTable, PagingMode, &Buffer, &PageTableBufferSize, 1, SIZE_4KB, &MapAttribute, &MapMask), RETURN_UNSUPPORTED);
UT_ASSERT_EQUAL (PageTableMap (&PageTable, PagingMode, &Buffer, &PageTableBufferSize, 1, SIZE_4KB, &MapAttribute, &MapMask, NULL), RETURN_UNSUPPORTED);
//
// If the input MapMask is NULL, it should return invalid parameter
//
PagingMode = Paging5Level1GB;
UT_ASSERT_EQUAL (PageTableMap (&PageTable, PagingMode, &Buffer, &PageTableBufferSize, 1, SIZE_4KB, &MapAttribute, NULL), RETURN_INVALID_PARAMETER);
UT_ASSERT_EQUAL (PageTableMap (&PageTable, PagingMode, &Buffer, &PageTableBufferSize, 1, SIZE_4KB, &MapAttribute, NULL, NULL), RETURN_INVALID_PARAMETER);
return UNIT_TEST_PASSED;
}
@ -119,10 +119,10 @@ TestCaseWhichNoNeedExtraSize (
//
// Create page table to cover [0, 10M], it should have 5 PTE
//
Status = PageTableMap (&PageTable, PagingMode, Buffer, &PageTableBufferSize, 0, (UINT64)SIZE_2MB * 5, &MapAttribute, &MapMask);
Status = PageTableMap (&PageTable, PagingMode, Buffer, &PageTableBufferSize, 0, (UINT64)SIZE_2MB * 5, &MapAttribute, &MapMask, NULL);
UT_ASSERT_EQUAL (Status, RETURN_BUFFER_TOO_SMALL);
Buffer = AllocatePages (EFI_SIZE_TO_PAGES (PageTableBufferSize));
Status = PageTableMap (&PageTable, PagingMode, Buffer, &PageTableBufferSize, 0, (UINT64)SIZE_2MB * 5, &MapAttribute, &MapMask);
Status = PageTableMap (&PageTable, PagingMode, Buffer, &PageTableBufferSize, 0, (UINT64)SIZE_2MB * 5, &MapAttribute, &MapMask, NULL);
UT_ASSERT_EQUAL (Status, RETURN_SUCCESS);
TestStatus = IsPageTableValid (PageTable, PagingMode);
if (TestStatus != UNIT_TEST_PASSED) {
@ -134,7 +134,7 @@ TestCaseWhichNoNeedExtraSize (
// We assume the fucntion doesn't need to change page table, return success and output BufferSize is 0
//
Buffer = NULL;
Status = PageTableMap (&PageTable, PagingMode, Buffer, &PageTableBufferSize, 0, (UINT64)SIZE_4KB, &MapAttribute, &MapMask);
Status = PageTableMap (&PageTable, PagingMode, Buffer, &PageTableBufferSize, 0, (UINT64)SIZE_4KB, &MapAttribute, &MapMask, NULL);
UT_ASSERT_EQUAL (PageTableBufferSize, 0);
UT_ASSERT_EQUAL (Status, RETURN_SUCCESS);
TestStatus = IsPageTableValid (PageTable, PagingMode);
@ -148,7 +148,7 @@ TestCaseWhichNoNeedExtraSize (
//
MapMask.Bits.Nx = 0;
PageTableBufferSize = 0;
Status = PageTableMap (&PageTable, PagingMode, NULL, &PageTableBufferSize, 0, (UINT64)SIZE_4KB, &MapAttribute, &MapMask);
Status = PageTableMap (&PageTable, PagingMode, NULL, &PageTableBufferSize, 0, (UINT64)SIZE_4KB, &MapAttribute, &MapMask, NULL);
UT_ASSERT_EQUAL (Status, RETURN_SUCCESS);
UT_ASSERT_EQUAL (PageTableBufferSize, 0);
TestStatus = IsPageTableValid (PageTable, PagingMode);
@ -164,7 +164,7 @@ TestCaseWhichNoNeedExtraSize (
MapAttribute.Bits.Accessed = 1;
MapMask.Bits.Accessed = 1;
PageTableBufferSize = 0;
Status = PageTableMap (&PageTable, PagingMode, NULL, &PageTableBufferSize, (UINT64)SIZE_2MB, (UINT64)SIZE_2MB, &MapAttribute, &MapMask);
Status = PageTableMap (&PageTable, PagingMode, NULL, &PageTableBufferSize, (UINT64)SIZE_2MB, (UINT64)SIZE_2MB, &MapAttribute, &MapMask, NULL);
UT_ASSERT_EQUAL (Status, RETURN_SUCCESS);
UT_ASSERT_EQUAL (PageTableBufferSize, 0);
TestStatus = IsPageTableValid (PageTable, PagingMode);
@ -217,10 +217,10 @@ TestCase1Gmapto4K (
MapAttribute.Bits.Present = 1;
MapMask.Bits.Present = 1;
MapMask.Uint64 = MAX_UINT64;
Status = PageTableMap (&PageTable, PagingMode, Buffer, &PageTableBufferSize, (UINT64)0, (UINT64)SIZE_1GB, &MapAttribute, &MapMask);
Status = PageTableMap (&PageTable, PagingMode, Buffer, &PageTableBufferSize, (UINT64)0, (UINT64)SIZE_1GB, &MapAttribute, &MapMask, NULL);
UT_ASSERT_EQUAL (Status, RETURN_BUFFER_TOO_SMALL);
Buffer = AllocatePages (EFI_SIZE_TO_PAGES (PageTableBufferSize));
Status = PageTableMap (&PageTable, PagingMode, Buffer, &PageTableBufferSize, (UINT64)0, (UINT64)SIZE_1GB, &MapAttribute, &MapMask);
Status = PageTableMap (&PageTable, PagingMode, Buffer, &PageTableBufferSize, (UINT64)0, (UINT64)SIZE_1GB, &MapAttribute, &MapMask, NULL);
UT_ASSERT_EQUAL (Status, RETURN_SUCCESS);
//
@ -281,11 +281,11 @@ TestCaseManualChangeReadWrite (
//
// Create Page table to cover [0,2G], with ReadWrite = 1
//
Status = PageTableMap (&PageTable, PagingMode, Buffer, &PageTableBufferSize, 0, SIZE_2GB, &MapAttribute, &MapMask);
Status = PageTableMap (&PageTable, PagingMode, Buffer, &PageTableBufferSize, 0, SIZE_2GB, &MapAttribute, &MapMask, NULL);
UT_ASSERT_EQUAL (Status, RETURN_BUFFER_TOO_SMALL);
BackupPageTableBufferSize = PageTableBufferSize;
Buffer = AllocatePages (EFI_SIZE_TO_PAGES (PageTableBufferSize));
Status = PageTableMap (&PageTable, PagingMode, Buffer, &PageTableBufferSize, 0, SIZE_2GB, &MapAttribute, &MapMask);
Status = PageTableMap (&PageTable, PagingMode, Buffer, &PageTableBufferSize, 0, SIZE_2GB, &MapAttribute, &MapMask, NULL);
UT_ASSERT_EQUAL (Status, RETURN_SUCCESS);
IsPageTableValid (PageTable, PagingMode);
@ -331,7 +331,7 @@ TestCaseManualChangeReadWrite (
// Call library to change ReadWrite to 0 for [0,2M]
//
MapAttribute.Bits.ReadWrite = 0;
Status = PageTableMap (&PageTable, PagingMode, NULL, &PageTableBufferSize, 0, SIZE_2MB, &MapAttribute, &MapMask);
Status = PageTableMap (&PageTable, PagingMode, NULL, &PageTableBufferSize, 0, SIZE_2MB, &MapAttribute, &MapMask, NULL);
UT_ASSERT_EQUAL (Status, RETURN_SUCCESS);
IsPageTableValid (PageTable, PagingMode);
MapCount = 0;
@ -360,7 +360,7 @@ TestCaseManualChangeReadWrite (
//
MapAttribute.Bits.ReadWrite = 1;
PageTableBufferSize = 0;
Status = PageTableMap (&PageTable, PagingMode, NULL, &PageTableBufferSize, 0, SIZE_2MB, &MapAttribute, &MapMask);
Status = PageTableMap (&PageTable, PagingMode, NULL, &PageTableBufferSize, 0, SIZE_2MB, &MapAttribute, &MapMask, NULL);
UT_ASSERT_EQUAL (Status, RETURN_SUCCESS);
IsPageTableValid (PageTable, PagingMode);
MapCount = 0;
@ -434,10 +434,10 @@ TestCaseManualSizeNotMatch (
//
// Create Page table to cover [2M-4K, 4M], with ReadWrite = 1
//
Status = PageTableMap (&PageTable, PagingMode, Buffer, &PageTableBufferSize, SIZE_2MB - SIZE_4KB, SIZE_4KB + SIZE_2MB, &MapAttribute, &MapMask);
Status = PageTableMap (&PageTable, PagingMode, Buffer, &PageTableBufferSize, SIZE_2MB - SIZE_4KB, SIZE_4KB + SIZE_2MB, &MapAttribute, &MapMask, NULL);
UT_ASSERT_EQUAL (Status, RETURN_BUFFER_TOO_SMALL);
Buffer = AllocatePages (EFI_SIZE_TO_PAGES (PageTableBufferSize));
Status = PageTableMap (&PageTable, PagingMode, Buffer, &PageTableBufferSize, SIZE_2MB - SIZE_4KB, SIZE_4KB + SIZE_2MB, &MapAttribute, &MapMask);
Status = PageTableMap (&PageTable, PagingMode, Buffer, &PageTableBufferSize, SIZE_2MB - SIZE_4KB, SIZE_4KB + SIZE_2MB, &MapAttribute, &MapMask, NULL);
UT_ASSERT_EQUAL (Status, RETURN_SUCCESS);
IsPageTableValid (PageTable, PagingMode);
@ -493,7 +493,7 @@ TestCaseManualSizeNotMatch (
MapAttribute.Bits.ReadWrite = 1;
PageTableBufferSize = 0;
MapAttribute.Bits.PageTableBaseAddress = (SIZE_2MB - SIZE_4KB) >> 12;
Status = PageTableMap (&PageTable, PagingMode, Buffer, &PageTableBufferSize, SIZE_2MB - SIZE_4KB, SIZE_4KB * 2, &MapAttribute, &MapMask);
Status = PageTableMap (&PageTable, PagingMode, Buffer, &PageTableBufferSize, SIZE_2MB - SIZE_4KB, SIZE_4KB * 2, &MapAttribute, &MapMask, NULL);
UT_ASSERT_EQUAL (Status, RETURN_SUCCESS);
return UNIT_TEST_PASSED;
}
@ -540,10 +540,10 @@ TestCaseManualNotMergeEntry (
//
// Create Page table to cover [0,4M], and [4M, 1G] is not present
//
Status = PageTableMap (&PageTable, PagingMode, Buffer, &PageTableBufferSize, (UINT64)0, (UINT64)SIZE_2MB * 2, &MapAttribute, &MapMask);
Status = PageTableMap (&PageTable, PagingMode, Buffer, &PageTableBufferSize, (UINT64)0, (UINT64)SIZE_2MB * 2, &MapAttribute, &MapMask, NULL);
UT_ASSERT_EQUAL (Status, RETURN_BUFFER_TOO_SMALL);
Buffer = AllocatePages (EFI_SIZE_TO_PAGES (PageTableBufferSize));
Status = PageTableMap (&PageTable, PagingMode, Buffer, &PageTableBufferSize, (UINT64)0, (UINT64)SIZE_2MB * 2, &MapAttribute, &MapMask);
Status = PageTableMap (&PageTable, PagingMode, Buffer, &PageTableBufferSize, (UINT64)0, (UINT64)SIZE_2MB * 2, &MapAttribute, &MapMask, NULL);
UT_ASSERT_EQUAL (Status, RETURN_SUCCESS);
TestStatus = IsPageTableValid (PageTable, PagingMode);
if (TestStatus != UNIT_TEST_PASSED) {
@ -555,7 +555,7 @@ TestCaseManualNotMergeEntry (
// It looks like the chioce is not bad, but sometime, we need to keep some small entry
//
PageTableBufferSize = 0;
Status = PageTableMap (&PageTable, PagingMode, NULL, &PageTableBufferSize, (UINT64)0, (UINT64)SIZE_1GB, &MapAttribute, &MapMask);
Status = PageTableMap (&PageTable, PagingMode, NULL, &PageTableBufferSize, (UINT64)0, (UINT64)SIZE_1GB, &MapAttribute, &MapMask, NULL);
UT_ASSERT_EQUAL (Status, RETURN_SUCCESS);
TestStatus = IsPageTableValid (PageTable, PagingMode);
if (TestStatus != UNIT_TEST_PASSED) {
@ -564,7 +564,7 @@ TestCaseManualNotMergeEntry (
MapAttribute.Bits.Accessed = 1;
PageTableBufferSize = 0;
Status = PageTableMap (&PageTable, PagingMode, NULL, &PageTableBufferSize, (UINT64)0, (UINT64)SIZE_2MB, &MapAttribute, &MapMask);
Status = PageTableMap (&PageTable, PagingMode, NULL, &PageTableBufferSize, (UINT64)0, (UINT64)SIZE_2MB, &MapAttribute, &MapMask, NULL);
//
// If it didn't use a big 1G entry to cover whole range, only change [0,2M] for some attribute won't need extra memory
//
@ -619,10 +619,10 @@ TestCaseManualChangeNx (
//
// Create Page table to cover [0,2G], with Nx = 0
//
Status = PageTableMap (&PageTable, PagingMode, Buffer, &PageTableBufferSize, (UINT64)0, (UINT64)SIZE_1GB * 2, &MapAttribute, &MapMask);
Status = PageTableMap (&PageTable, PagingMode, Buffer, &PageTableBufferSize, (UINT64)0, (UINT64)SIZE_1GB * 2, &MapAttribute, &MapMask, NULL);
UT_ASSERT_EQUAL (Status, RETURN_BUFFER_TOO_SMALL);
Buffer = AllocatePages (EFI_SIZE_TO_PAGES (PageTableBufferSize));
Status = PageTableMap (&PageTable, PagingMode, Buffer, &PageTableBufferSize, (UINT64)0, (UINT64)SIZE_1GB * 2, &MapAttribute, &MapMask);
Status = PageTableMap (&PageTable, PagingMode, Buffer, &PageTableBufferSize, (UINT64)0, (UINT64)SIZE_1GB * 2, &MapAttribute, &MapMask, NULL);
UT_ASSERT_EQUAL (Status, RETURN_SUCCESS);
TestStatus = IsPageTableValid (PageTable, PagingMode);
if (TestStatus != UNIT_TEST_PASSED) {
@ -666,7 +666,7 @@ TestCaseManualChangeNx (
//
// Call library to change Nx to 0 for [0,1G]
//
Status = PageTableMap (&PageTable, PagingMode, NULL, &PageTableBufferSize, (UINT64)0, (UINT64)SIZE_1GB, &MapAttribute, &MapMask);
Status = PageTableMap (&PageTable, PagingMode, NULL, &PageTableBufferSize, (UINT64)0, (UINT64)SIZE_1GB, &MapAttribute, &MapMask, NULL);
UT_ASSERT_EQUAL (Status, RETURN_SUCCESS);
TestStatus = IsPageTableValid (PageTable, PagingMode);
if (TestStatus != UNIT_TEST_PASSED) {
@ -741,30 +741,30 @@ TestCaseToCheckMapMaskAndAttr (
//
// Create Page table to cover [0, 2G]. All fields of MapMask should be set.
//
Status = PageTableMap (&PageTable, PagingMode, Buffer, &PageTableBufferSize, 0, SIZE_2GB, &MapAttribute, &MapMask);
Status = PageTableMap (&PageTable, PagingMode, Buffer, &PageTableBufferSize, 0, SIZE_2GB, &MapAttribute, &MapMask, NULL);
UT_ASSERT_EQUAL (Status, RETURN_INVALID_PARAMETER);
MapMask.Uint64 = MAX_UINT64;
Status = PageTableMap (&PageTable, PagingMode, Buffer, &PageTableBufferSize, 0, SIZE_2GB, &MapAttribute, &MapMask);
Status = PageTableMap (&PageTable, PagingMode, Buffer, &PageTableBufferSize, 0, SIZE_2GB, &MapAttribute, &MapMask, NULL);
UT_ASSERT_EQUAL (Status, RETURN_BUFFER_TOO_SMALL);
Buffer = AllocatePages (EFI_SIZE_TO_PAGES (PageTableBufferSize));
Status = PageTableMap (&PageTable, PagingMode, Buffer, &PageTableBufferSize, 0, SIZE_2GB, &MapAttribute, &MapMask);
Status = PageTableMap (&PageTable, PagingMode, Buffer, &PageTableBufferSize, 0, SIZE_2GB, &MapAttribute, &MapMask, NULL);
UT_ASSERT_EQUAL (Status, RETURN_SUCCESS);
//
// Update Page table to set [2G - 8K, 2G] from present to non-present. All fields of MapMask except present should not be set.
//
PageTableBufferSize = 0;
MapAttribute.Uint64 = SIZE_2GB - SIZE_8KB;
MapAttribute.Uint64 = 0;
MapMask.Uint64 = 0;
MapMask.Bits.Present = 1;
MapMask.Bits.ReadWrite = 1;
Status = PageTableMap (&PageTable, PagingMode, Buffer, &PageTableBufferSize, SIZE_2GB - SIZE_8KB, SIZE_8KB, &MapAttribute, &MapMask);
Status = PageTableMap (&PageTable, PagingMode, Buffer, &PageTableBufferSize, SIZE_2GB - SIZE_8KB, SIZE_8KB, &MapAttribute, &MapMask, NULL);
UT_ASSERT_EQUAL (Status, RETURN_INVALID_PARAMETER);
MapMask.Bits.ReadWrite = 0;
Status = PageTableMap (&PageTable, PagingMode, Buffer, &PageTableBufferSize, SIZE_2GB - SIZE_8KB, SIZE_8KB, &MapAttribute, &MapMask);
Status = PageTableMap (&PageTable, PagingMode, Buffer, &PageTableBufferSize, SIZE_2GB - SIZE_8KB, SIZE_8KB, &MapAttribute, &MapMask, NULL);
UT_ASSERT_EQUAL (Status, RETURN_BUFFER_TOO_SMALL);
Buffer = AllocatePages (EFI_SIZE_TO_PAGES (PageTableBufferSize));
Status = PageTableMap (&PageTable, PagingMode, Buffer, &PageTableBufferSize, 0, SIZE_2GB, &MapAttribute, &MapMask);
Status = PageTableMap (&PageTable, PagingMode, Buffer, &PageTableBufferSize, SIZE_2GB - SIZE_8KB, SIZE_8KB, &MapAttribute, &MapMask, NULL);
UT_ASSERT_EQUAL (Status, RETURN_SUCCESS);
//
@ -774,11 +774,11 @@ TestCaseToCheckMapMaskAndAttr (
MapAttribute.Uint64 = 0;
MapMask.Uint64 = 0;
MapMask.Bits.Present = 1;
Status = PageTableMap (&PageTable, PagingMode, Buffer, &PageTableBufferSize, SIZE_2GB - SIZE_8KB, SIZE_8KB, &MapAttribute, &MapMask);
Status = PageTableMap (&PageTable, PagingMode, Buffer, &PageTableBufferSize, SIZE_2GB - SIZE_8KB, SIZE_8KB, &MapAttribute, &MapMask, NULL);
UT_ASSERT_EQUAL (Status, RETURN_SUCCESS);
MapAttribute.Bits.ReadWrite = 1;
MapMask.Bits.ReadWrite = 1;
Status = PageTableMap (&PageTable, PagingMode, Buffer, &PageTableBufferSize, SIZE_2GB - SIZE_8KB, SIZE_8KB, &MapAttribute, &MapMask);
Status = PageTableMap (&PageTable, PagingMode, Buffer, &PageTableBufferSize, SIZE_2GB - SIZE_8KB, SIZE_8KB, &MapAttribute, &MapMask, NULL);
UT_ASSERT_EQUAL (Status, RETURN_INVALID_PARAMETER);
//
@ -791,10 +791,10 @@ TestCaseToCheckMapMaskAndAttr (
MapMask.Uint64 = 0;
MapMask.Bits.ReadWrite = 1;
MapMask.Bits.Present = 1;
Status = PageTableMap (&PageTable, PagingMode, Buffer, &PageTableBufferSize, SIZE_2GB - SIZE_8KB, SIZE_8KB, &MapAttribute, &MapMask);
Status = PageTableMap (&PageTable, PagingMode, Buffer, &PageTableBufferSize, SIZE_2GB - SIZE_8KB, SIZE_8KB, &MapAttribute, &MapMask, NULL);
UT_ASSERT_EQUAL (Status, RETURN_INVALID_PARAMETER);
MapMask.Uint64 = MAX_UINT64;
Status = PageTableMap (&PageTable, PagingMode, Buffer, &PageTableBufferSize, SIZE_2GB - SIZE_8KB, SIZE_8KB, &MapAttribute, &MapMask);
Status = PageTableMap (&PageTable, PagingMode, Buffer, &PageTableBufferSize, SIZE_2GB - SIZE_8KB, SIZE_8KB, &MapAttribute, &MapMask, NULL);
UT_ASSERT_EQUAL (Status, RETURN_SUCCESS);
MapCount = 0;

6
UefiCpuPkg/Library/CpuPageTableLib/UnitTest/RandomTest.c
View File

@ -699,7 +699,8 @@ SingleMapEntryTest (
LastMapEntry->LinearAddress,
LastMapEntry->Length,
&LastMapEntry->Attribute,
&LastMapEntry->Mask
&LastMapEntry->Mask,
NULL
);
Attribute = &LastMapEntry->Attribute;
@ -759,7 +760,8 @@ SingleMapEntryTest (
LastMapEntry->LinearAddress,
LastMapEntry->Length,
&LastMapEntry->Attribute,
&LastMapEntry->Mask
&LastMapEntry->Mask,
NULL
);
}

6
UefiCpuPkg/Library/MpInitLib/X64/CreatePageTable.c
View File

@ -57,7 +57,8 @@ CreatePageTable (
Address,
Length,
&MapAttribute,
&MapMask
&MapMask,
NULL
);
ASSERT (Status == EFI_BUFFER_TOO_SMALL);
DEBUG ((DEBUG_INFO, "AP Page Table Buffer Size = %x\n", PageTableBufferSize));
@ -72,7 +73,8 @@ CreatePageTable (
Address,
Length,
&MapAttribute,
&MapMask
&MapMask,
NULL
);
ASSERT_EFI_ERROR (Status);
return PageTable;