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/** @file
Unit tests of the CpuPageTableLib instance of the CpuPageTableLib class
Copyright (c) 2022 - 2023, Intel Corporation. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
#include "CpuPageTableLibUnitTest.h"
// ----------------------------------------------------------------------- PageMode--TestCount-TestRangeCount---RandomOptions
// static CPU_PAGE_TABLE_LIB_RANDOM_TEST_CONTEXT mTestContextPaging4Level = { Paging4Level, 30, 20, USE_RANDOM_ARRAY };
// static CPU_PAGE_TABLE_LIB_RANDOM_TEST_CONTEXT mTestContextPaging4Level1GB = { Paging4Level1GB, 30, 20, USE_RANDOM_ARRAY };
// static CPU_PAGE_TABLE_LIB_RANDOM_TEST_CONTEXT mTestContextPaging5Level = { Paging5Level, 30, 20, USE_RANDOM_ARRAY };
// static CPU_PAGE_TABLE_LIB_RANDOM_TEST_CONTEXT mTestContextPaging5Level1GB = { Paging5Level1GB, 30, 20, USE_RANDOM_ARRAY };
// static CPU_PAGE_TABLE_LIB_RANDOM_TEST_CONTEXT mTestContextPagingPae = { PagingPae, 30, 20, USE_RANDOM_ARRAY };
/**
Check if the input parameters are not supported.
@param[in] Context [Optional] An optional parameter that enables:
1) test-case reuse with varied parameters and
2) test-case re-entry for Target tests that need a
reboot. This parameter is a VOID* and it is the
responsibility of the test author to ensure that the
contents are well understood by all test cases that may
consume it.
@retval UNIT_TEST_PASSED The Unit test has completed and the test
case was successful.
@retval UNIT_TEST_ERROR_TEST_FAILED A test case assertion has failed.
**/
UNIT_TEST_STATUS
EFIAPI
TestCaseForParameter (
IN UNIT_TEST_CONTEXT Context
)
{
UINTN PageTable;
PAGING_MODE PagingMode;
UINTN Buffer;
UINTN PageTableBufferSize;
IA32_MAP_ATTRIBUTE MapAttribute;
IA32_MAP_ATTRIBUTE MapMask;
MapAttribute.Uint64 = 0;
MapMask.Uint64 = 0;
PagingMode = Paging5Level1GB;
PageTableBufferSize = 0;
PageTable = 0;
//
// 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, 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, 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, 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, NULL), RETURN_INVALID_PARAMETER);
return UNIT_TEST_PASSED;
}
/**
Check the case that modifying page table doesn't need extra buffe
@param[in] Context [Optional] An optional parameter that enables:
1) test-case reuse with varied parameters and
2) test-case re-entry for Target tests that need a
reboot. This parameter is a VOID* and it is the
responsibility of the test author to ensure that the
contents are well understood by all test cases that may
consume it.
@retval UNIT_TEST_PASSED The Unit test has completed and the test
case was successful.
@retval UNIT_TEST_ERROR_TEST_FAILED A test case assertion has failed.
**/
UNIT_TEST_STATUS
EFIAPI
TestCaseWhichNoNeedExtraSize (
IN UNIT_TEST_CONTEXT Context
)
{
UINTN PageTable;
PAGING_MODE PagingMode;
VOID *Buffer;
UINTN PageTableBufferSize;
IA32_MAP_ATTRIBUTE MapAttribute;
IA32_MAP_ATTRIBUTE MapMask;
RETURN_STATUS Status;
UNIT_TEST_STATUS TestStatus;
MapAttribute.Uint64 = 0;
MapMask.Uint64 = 0;
PagingMode = Paging4Level1GB;
PageTableBufferSize = 0;
PageTable = 0;
Buffer = NULL;
MapAttribute.Bits.Present = 1;
MapAttribute.Bits.Nx = 1;
MapMask.Bits.Present = 1;
MapMask.Uint64 = MAX_UINT64;
//
// 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, 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, NULL);
UT_ASSERT_EQUAL (Status, RETURN_SUCCESS);
TestStatus = IsPageTableValid (PageTable, PagingMode);
if (TestStatus != UNIT_TEST_PASSED) {
return TestStatus;
}
//
// call library to cover [0, 4K], because the page table is already cover [0, 10M], and no attribute change,
// 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, NULL);
UT_ASSERT_EQUAL (PageTableBufferSize, 0);
UT_ASSERT_EQUAL (Status, RETURN_SUCCESS);
TestStatus = IsPageTableValid (PageTable, PagingMode);
if (TestStatus != UNIT_TEST_PASSED) {
return TestStatus;
}
//
// Same range and same attribute, only clear one mask attribute bit
// We assume the fucntion doesn't need to change page table, return success and output BufferSize is 0
//
MapMask.Bits.Nx = 0;
PageTableBufferSize = 0;
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);
if (TestStatus != UNIT_TEST_PASSED) {
return TestStatus;
}
//
// call library to cover [2M, 4M], while the page table is already cover [0, 10M],
// only change one attribute bit, we assume the page table change be modified even if the
// input Buffer is NULL, and BufferSize is 0
//
MapAttribute.Bits.Accessed = 1;
MapMask.Bits.Accessed = 1;
PageTableBufferSize = 0;
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);
if (TestStatus != UNIT_TEST_PASSED) {
return TestStatus;
}
return UNIT_TEST_PASSED;
}
/**
Test Case that check the case to map [0, 1G] to [8K, 1G+8K]
@param[in] Context [Optional] An optional parameter that enables:
1) test-case reuse with varied parameters and
2) test-case re-entry for Target tests that need a
reboot. This parameter is a VOID* and it is the
responsibility of the test author to ensure that the
contents are well understood by all test cases that may
consume it.
@retval UNIT_TEST_PASSED The Unit test has completed and the test
case was successful.
@retval UNIT_TEST_ERROR_TEST_FAILED A test case assertion has failed.
**/
UNIT_TEST_STATUS
EFIAPI
TestCase1Gmapto4K (
IN UNIT_TEST_CONTEXT Context
)
{
UINTN PageTable;
PAGING_MODE PagingMode;
VOID *Buffer;
UINTN PageTableBufferSize;
IA32_MAP_ATTRIBUTE MapAttribute;
IA32_MAP_ATTRIBUTE MapMask;
RETURN_STATUS Status;
UNIT_TEST_STATUS TestStatus;
//
// Create Page table to map [0,1G] to [8K, 1G+8K]
//
PagingMode = Paging4Level1GB;
PageTableBufferSize = 0;
PageTable = 0;
Buffer = NULL;
MapAttribute.Uint64 = (UINT64)SIZE_4KB * 2;
MapMask.Uint64 = (UINT64)SIZE_4KB * 2;
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, 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, NULL);
UT_ASSERT_EQUAL (Status, RETURN_SUCCESS);
//
// Page table should be valid. (All reserved bits are zero)
//
TestStatus = IsPageTableValid (PageTable, PagingMode);
if (TestStatus != UNIT_TEST_PASSED) {
return TestStatus;
}
return UNIT_TEST_PASSED;
}
/**
Check if the parent entry has different R/W attribute
@param[in] Context [Optional] An optional parameter that enables:
1) test-case reuse with varied parameters and
2) test-case re-entry for Target tests that need a
reboot. This parameter is a VOID* and it is the
responsibility of the test author to ensure that the
contents are well understood by all test cases that may
consume it.
@retval UNIT_TEST_PASSED The Unit test has completed and the test
case was successful.
@retval UNIT_TEST_ERROR_TEST_FAILED A test case assertion has failed.
**/
UNIT_TEST_STATUS
EFIAPI
TestCaseManualChangeReadWrite (
IN UNIT_TEST_CONTEXT Context
)
{
UINTN PageTable;
PAGING_MODE PagingMode;
VOID *Buffer;
UINTN PageTableBufferSize;
IA32_MAP_ATTRIBUTE MapAttribute;
IA32_MAP_ATTRIBUTE ExpectedMapAttribute;
IA32_MAP_ATTRIBUTE MapMask;
RETURN_STATUS Status;
IA32_MAP_ENTRY *Map;
UINTN MapCount;
IA32_PAGING_ENTRY *PagingEntry;
VOID *BackupBuffer;
UINTN BackupPageTableBufferSize;
PagingMode = Paging4Level;
PageTableBufferSize = 0;
PageTable = 0;
Buffer = NULL;
MapAttribute.Uint64 = 0;
MapMask.Uint64 = MAX_UINT64;
MapAttribute.Bits.Present = 1;
MapAttribute.Bits.ReadWrite = 1;
//
// Create Page table to cover [0,2G], with ReadWrite = 1
//
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, NULL);
UT_ASSERT_EQUAL (Status, RETURN_SUCCESS);
IsPageTableValid (PageTable, PagingMode);
MapCount = 0;
Status = PageTableParse (PageTable, PagingMode, NULL, &MapCount);
UT_ASSERT_EQUAL (Status, RETURN_BUFFER_TOO_SMALL);
IsPageTableValid (PageTable, PagingMode);
Map = AllocatePages (EFI_SIZE_TO_PAGES (MapCount));
Status = PageTableParse (PageTable, PagingMode, Map, &MapCount);
UT_ASSERT_EQUAL (Status, RETURN_SUCCESS);
UT_ASSERT_EQUAL (MapCount, 1);
UT_ASSERT_EQUAL (Map[0].LinearAddress, 0);
UT_ASSERT_EQUAL (Map[0].Length, SIZE_2GB);
ExpectedMapAttribute.Uint64 = MapAttribute.Uint64;
UT_ASSERT_EQUAL (Map[0].Attribute.Uint64, ExpectedMapAttribute.Uint64);
//
// Manually change ReadWrite to 0 for non-leaf entry, which covers [0,2G]
//
PagingEntry = (IA32_PAGING_ENTRY *)(UINTN)PageTable;
PagingEntry->Uint64 = PagingEntry->Uint64 & (~(UINT64)0x2);
MapCount = 0;
Status = PageTableParse (PageTable, PagingMode, NULL, &MapCount);
UT_ASSERT_EQUAL (Status, RETURN_BUFFER_TOO_SMALL);
Map = AllocatePages (EFI_SIZE_TO_PAGES (MapCount));
Status = PageTableParse (PageTable, PagingMode, Map, &MapCount);
UT_ASSERT_EQUAL (Status, RETURN_SUCCESS);
UT_ASSERT_EQUAL (MapCount, 1);
UT_ASSERT_EQUAL (Map[0].LinearAddress, 0);
UT_ASSERT_EQUAL (Map[0].Length, SIZE_2GB);
ExpectedMapAttribute.Uint64 = MapAttribute.Uint64;
ExpectedMapAttribute.Bits.ReadWrite = 0;
UT_ASSERT_EQUAL (Map[0].Attribute.Uint64, ExpectedMapAttribute.Uint64);
//
// Copy the page entry structure memory for future compare
//
BackupBuffer = AllocateCopyPool (BackupPageTableBufferSize, Buffer);
UT_ASSERT_MEM_EQUAL (Buffer, BackupBuffer, BackupPageTableBufferSize);
//
// 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, NULL);
UT_ASSERT_EQUAL (Status, RETURN_SUCCESS);
IsPageTableValid (PageTable, PagingMode);
MapCount = 0;
Status = PageTableParse (PageTable, PagingMode, NULL, &MapCount);
UT_ASSERT_EQUAL (Status, RETURN_BUFFER_TOO_SMALL);
Map = AllocatePages (EFI_SIZE_TO_PAGES (MapCount));
Status = PageTableParse (PageTable, PagingMode, Map, &MapCount);
//
// There should be 1 range [0, 2G] with ReadWrite = 0
//
UT_ASSERT_EQUAL (Status, RETURN_SUCCESS);
UT_ASSERT_EQUAL (MapCount, 1);
UT_ASSERT_EQUAL (Map[0].LinearAddress, 0);
UT_ASSERT_EQUAL (Map[0].Length, SIZE_2GB);
ExpectedMapAttribute.Uint64 = MapAttribute.Uint64;
UT_ASSERT_EQUAL (Map[0].Attribute.Uint64, ExpectedMapAttribute.Uint64);
//
// The latest PageTableMap call should change nothing.
// The memory should be identical before and after the funtion is called.
//
UT_ASSERT_MEM_EQUAL (Buffer, BackupBuffer, BackupPageTableBufferSize);
//
// Call library to change ReadWrite to 1 for [0, 2M]
//
MapAttribute.Bits.ReadWrite = 1;
PageTableBufferSize = 0;
Status = PageTableMap (&PageTable, PagingMode, NULL, &PageTableBufferSize, 0, SIZE_2MB, &MapAttribute, &MapMask, NULL);
UT_ASSERT_EQUAL (Status, RETURN_SUCCESS);
IsPageTableValid (PageTable, PagingMode);
MapCount = 0;
Status = PageTableParse (PageTable, PagingMode, NULL, &MapCount);
UT_ASSERT_EQUAL (Status, RETURN_BUFFER_TOO_SMALL);
Map = AllocatePages (EFI_SIZE_TO_PAGES (MapCount));
Status = PageTableParse (PageTable, PagingMode, Map, &MapCount);
//
// There should be 2 range [0, 2M] with ReadWrite = 1 and [2M, 2G] with ReadWrite = 0
//
UT_ASSERT_EQUAL (Status, RETURN_SUCCESS);
UT_ASSERT_EQUAL (MapCount, 2);
UT_ASSERT_EQUAL (Map[0].LinearAddress, 0);
UT_ASSERT_EQUAL (Map[0].Length, SIZE_2MB);
ExpectedMapAttribute.Uint64 = MapAttribute.Uint64;
UT_ASSERT_EQUAL (Map[0].Attribute.Uint64, ExpectedMapAttribute.Uint64);
UT_ASSERT_EQUAL (Map[1].LinearAddress, SIZE_2MB);
UT_ASSERT_EQUAL (Map[1].Length, SIZE_2GB - SIZE_2MB);
ExpectedMapAttribute.Uint64 = SIZE_2MB;
ExpectedMapAttribute.Bits.ReadWrite = 0;
ExpectedMapAttribute.Bits.Present = 1;
UT_ASSERT_EQUAL (Map[1].Attribute.Uint64, ExpectedMapAttribute.Uint64);
return UNIT_TEST_PASSED;
}
/**
Check if the needed size is expected
@param[in] Context [Optional] An optional parameter that enables:
1) test-case reuse with varied parameters and
2) test-case re-entry for Target tests that need a
reboot. This parameter is a VOID* and it is the
responsibility of the test author to ensure that the
contents are well understood by all test cases that may
consume it.
@retval UNIT_TEST_PASSED The Unit test has completed and the test
case was successful.
@retval UNIT_TEST_ERROR_TEST_FAILED A test case assertion has failed.
**/
UNIT_TEST_STATUS
EFIAPI
TestCaseManualSizeNotMatch (
IN UNIT_TEST_CONTEXT Context
)
{
UINTN PageTable;
PAGING_MODE PagingMode;
VOID *Buffer;
UINTN PageTableBufferSize;
IA32_MAP_ATTRIBUTE MapAttribute;
IA32_MAP_ATTRIBUTE ExpectedMapAttribute;
IA32_MAP_ATTRIBUTE MapMask;
RETURN_STATUS Status;
IA32_MAP_ENTRY *Map;
UINTN MapCount;
IA32_PAGING_ENTRY *PagingEntry;
PagingMode = Paging4Level;
PageTableBufferSize = 0;
PageTable = 0;
Buffer = NULL;
MapMask.Uint64 = MAX_UINT64;
MapAttribute.Uint64 = (SIZE_2MB - SIZE_4KB);
MapAttribute.Bits.Present = 1;
MapAttribute.Bits.ReadWrite = 1;
//
// 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, 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, NULL);
UT_ASSERT_EQUAL (Status, RETURN_SUCCESS);
IsPageTableValid (PageTable, PagingMode);
MapCount = 0;
Status = PageTableParse (PageTable, PagingMode, NULL, &MapCount);
UT_ASSERT_EQUAL (Status, RETURN_BUFFER_TOO_SMALL);
IsPageTableValid (PageTable, PagingMode);
Map = AllocatePages (EFI_SIZE_TO_PAGES (MapCount));
Status = PageTableParse (PageTable, PagingMode, Map, &MapCount);
UT_ASSERT_EQUAL (Status, RETURN_SUCCESS);
UT_ASSERT_EQUAL (MapCount, 1);
UT_ASSERT_EQUAL (Map[0].LinearAddress, SIZE_2MB - SIZE_4KB);
UT_ASSERT_EQUAL (Map[0].Length, SIZE_4KB + SIZE_2MB);
ExpectedMapAttribute.Uint64 = MapAttribute.Uint64;
UT_ASSERT_EQUAL (Map[0].Attribute.Uint64, ExpectedMapAttribute.Uint64);
//
// Manually change ReadWrite to 0 for 3 level non-leaf entry, which covers [0,2M]
// Then the map is:
// [2M-4K,2M], R/W = 0
// [2M ,4M], R/W = 1
//
PagingEntry = (IA32_PAGING_ENTRY *)(UINTN)PageTable; // Get 4 level entry
PagingEntry = (IA32_PAGING_ENTRY *)(UINTN)IA32_PNLE_PAGE_TABLE_BASE_ADDRESS (PagingEntry); // Get 3 level entry
PagingEntry = (IA32_PAGING_ENTRY *)(UINTN)IA32_PNLE_PAGE_TABLE_BASE_ADDRESS (PagingEntry); // Get 2 level entry
PagingEntry->Uint64 = PagingEntry->Uint64 & (~(UINT64)0x2);
MapCount = 0;
Status = PageTableParse (PageTable, PagingMode, NULL, &MapCount);
UT_ASSERT_EQUAL (Status, RETURN_BUFFER_TOO_SMALL);
Map = AllocatePages (EFI_SIZE_TO_PAGES (MapCount));
Status = PageTableParse (PageTable, PagingMode, Map, &MapCount);
UT_ASSERT_EQUAL (Status, RETURN_SUCCESS);
UT_ASSERT_EQUAL (MapCount, 2);
UT_ASSERT_EQUAL (Map[0].LinearAddress, SIZE_2MB - SIZE_4KB);
UT_ASSERT_EQUAL (Map[0].Length, SIZE_4KB);
ExpectedMapAttribute.Uint64 = MapAttribute.Uint64;
ExpectedMapAttribute.Bits.ReadWrite = 0;
UT_ASSERT_EQUAL (Map[0].Attribute.Uint64, ExpectedMapAttribute.Uint64);
UT_ASSERT_EQUAL (Map[1].LinearAddress, SIZE_2MB);
UT_ASSERT_EQUAL (Map[1].Length, SIZE_2MB);
ExpectedMapAttribute.Uint64 = MapAttribute.Uint64 + SIZE_4KB;
ExpectedMapAttribute.Bits.ReadWrite = 1;
UT_ASSERT_EQUAL (Map[1].Attribute.Uint64, ExpectedMapAttribute.Uint64);
//
// Set Page table [2M-4K, 2M+4K]'s ReadWrite = 1, [2M,2M+4K]'s ReadWrite is already 1
// Just need to set [2M-4K,2M], won't need extra size, so the status should be success
//
MapAttribute.Uint64 = SIZE_2MB - SIZE_4KB;
MapAttribute.Bits.Present = 1;
MapAttribute.Bits.ReadWrite = 1;
PageTableBufferSize = 0;
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;
}
/**
Check that won't merge entries
@param[in] Context [Optional] An optional parameter that enables:
1) test-case reuse with varied parameters and
2) test-case re-entry for Target tests that need a
reboot. This parameter is a VOID* and it is the
responsibility of the test author to ensure that the
contents are well understood by all test cases that may
consume it.
@retval UNIT_TEST_PASSED The Unit test has completed and the test
case was successful.
@retval UNIT_TEST_ERROR_TEST_FAILED A test case assertion has failed.
**/
UNIT_TEST_STATUS
EFIAPI
TestCaseManualNotMergeEntry (
IN UNIT_TEST_CONTEXT Context
)
{
UINTN PageTable;
PAGING_MODE PagingMode;
VOID *Buffer;
UINTN PageTableBufferSize;
IA32_MAP_ATTRIBUTE MapAttribute;
IA32_MAP_ATTRIBUTE MapMask;
RETURN_STATUS Status;
UNIT_TEST_STATUS TestStatus;
PagingMode = Paging4Level1GB;
PageTableBufferSize = 0;
PageTable = 0;
Buffer = NULL;
MapAttribute.Uint64 = 0;
MapMask.Uint64 = MAX_UINT64;
MapAttribute.Bits.Present = 1;
MapMask.Bits.Present = 1;
//
// 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, 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, NULL);
UT_ASSERT_EQUAL (Status, RETURN_SUCCESS);
TestStatus = IsPageTableValid (PageTable, PagingMode);
if (TestStatus != UNIT_TEST_PASSED) {
return TestStatus;
}
//
// Let Page table to cover [0,1G], we assume it won't use a big 1G entry to cover whole range
// 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, NULL);
UT_ASSERT_EQUAL (Status, RETURN_SUCCESS);
TestStatus = IsPageTableValid (PageTable, PagingMode);
if (TestStatus != UNIT_TEST_PASSED) {
return TestStatus;
}
MapAttribute.Bits.Accessed = 1;
PageTableBufferSize = 0;
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
//
UT_ASSERT_EQUAL (Status, RETURN_SUCCESS);
return UNIT_TEST_PASSED;
}
/**
Check if the parent entry has different Nx attribute
@param[in] Context [Optional] An optional parameter that enables:
1) test-case reuse with varied parameters and
2) test-case re-entry for Target tests that need a
reboot. This parameter is a VOID* and it is the
responsibility of the test author to ensure that the
contents are well understood by all test cases that may
consume it.
@retval UNIT_TEST_PASSED The Unit test has completed and the test
case was successful.
@retval UNIT_TEST_ERROR_TEST_FAILED A test case assertion has failed.
**/
UNIT_TEST_STATUS
EFIAPI
TestCaseManualChangeNx (
IN UNIT_TEST_CONTEXT Context
)
{
UINTN PageTable;
PAGING_MODE PagingMode;
VOID *Buffer;
UINTN PageTableBufferSize;
IA32_MAP_ATTRIBUTE MapAttribute;
IA32_MAP_ATTRIBUTE ExpectedMapAttribute;
IA32_MAP_ATTRIBUTE MapMask;
RETURN_STATUS Status;
IA32_MAP_ENTRY *Map;
UINTN MapCount;
IA32_PAGING_ENTRY *PagingEntry;
UNIT_TEST_STATUS TestStatus;
PagingMode = Paging4Level1GB;
PageTableBufferSize = 0;
PageTable = 0;
Buffer = NULL;
MapAttribute.Uint64 = 0;
MapMask.Uint64 = MAX_UINT64;
MapAttribute.Bits.Present = 1;
MapAttribute.Bits.Nx = 0;
//
// Create Page table to cover [0,2G], with Nx = 0
//
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, NULL);
UT_ASSERT_EQUAL (Status, RETURN_SUCCESS);
TestStatus = IsPageTableValid (PageTable, PagingMode);
if (TestStatus != UNIT_TEST_PASSED) {
return TestStatus;
}
MapCount = 0;
Status = PageTableParse (PageTable, PagingMode, NULL, &MapCount);
UT_ASSERT_EQUAL (Status, RETURN_BUFFER_TOO_SMALL);
TestStatus = IsPageTableValid (PageTable, PagingMode);
if (TestStatus != UNIT_TEST_PASSED) {
return TestStatus;
}
Map = AllocatePages (EFI_SIZE_TO_PAGES (MapCount* sizeof (IA32_MAP_ENTRY)));
Status = PageTableParse (PageTable, PagingMode, Map, &MapCount);
UT_ASSERT_EQUAL (Status, RETURN_SUCCESS);
UT_ASSERT_EQUAL (MapCount, 1);
UT_ASSERT_EQUAL (Map[0].LinearAddress, 0);
UT_ASSERT_EQUAL (Map[0].Length, SIZE_2GB);
ExpectedMapAttribute.Uint64 = MapAttribute.Uint64;
UT_ASSERT_EQUAL (Map[0].Attribute.Uint64, ExpectedMapAttribute.Uint64);
//
// Manually change Nx to 1 for non-leaf entry, which covers [0,2G]
//
PagingEntry = (IA32_PAGING_ENTRY *)(UINTN)PageTable;
PagingEntry->Uint64 = PagingEntry->Uint64 | BIT63;
MapCount = 0;
Status = PageTableParse (PageTable, PagingMode, NULL, &MapCount);
UT_ASSERT_EQUAL (Status, RETURN_BUFFER_TOO_SMALL);
Map = AllocatePages (EFI_SIZE_TO_PAGES (MapCount* sizeof (IA32_MAP_ENTRY)));
Status = PageTableParse (PageTable, PagingMode, Map, &MapCount);
UT_ASSERT_EQUAL (Status, RETURN_SUCCESS);
UT_ASSERT_EQUAL (MapCount, 1);
UT_ASSERT_EQUAL (Map[0].LinearAddress, 0);
UT_ASSERT_EQUAL (Map[0].Length, SIZE_2GB);
ExpectedMapAttribute.Bits.Nx = 1;
UT_ASSERT_EQUAL (Map[0].Attribute.Uint64, ExpectedMapAttribute.Uint64);
//
// Call library to change Nx to 0 for [0,1G]
//
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) {
return TestStatus;
}
MapCount = 0;
Status = PageTableParse (PageTable, PagingMode, NULL, &MapCount);
UT_ASSERT_EQUAL (Status, RETURN_BUFFER_TOO_SMALL);
Map = AllocatePages (EFI_SIZE_TO_PAGES (MapCount* sizeof (IA32_MAP_ENTRY)));
Status = PageTableParse (PageTable, PagingMode, Map, &MapCount);
UT_ASSERT_EQUAL (Status, RETURN_SUCCESS);
//
// There should be two ranges [0, 1G] with Nx = 0 and [1G, 2G] with Nx = 1
//
UT_ASSERT_EQUAL (MapCount, 2);
UT_ASSERT_EQUAL (Map[0].LinearAddress, 0);
UT_ASSERT_EQUAL (Map[0].Length, SIZE_1GB);
ExpectedMapAttribute.Uint64 = MapAttribute.Uint64;
UT_ASSERT_EQUAL (Map[0].Attribute.Uint64, ExpectedMapAttribute.Uint64);
UT_ASSERT_EQUAL (Map[1].LinearAddress, SIZE_1GB);
UT_ASSERT_EQUAL (Map[1].Length, SIZE_1GB);
ExpectedMapAttribute.Uint64 = SIZE_1GB;
ExpectedMapAttribute.Bits.Present = 1;
ExpectedMapAttribute.Bits.Nx = 1;
UT_ASSERT_EQUAL (Map[1].Attribute.Uint64, ExpectedMapAttribute.Uint64);
return UNIT_TEST_PASSED;
}
/**
Check if the input Mask and Attribute is as expected when creating new page table or
updating existing page table.
@param[in] Context [Optional] An optional parameter that enables:
1) test-case reuse with varied parameters and
2) test-case re-entry for Target tests that need a
reboot. This parameter is a VOID* and it is the
responsibility of the test author to ensure that the
contents are well understood by all test cases that may
consume it.
@retval UNIT_TEST_PASSED The Unit test has completed and the test
case was successful.
@retval UNIT_TEST_ERROR_TEST_FAILED A test case assertion has failed.
**/
UNIT_TEST_STATUS
EFIAPI
TestCaseToCheckMapMaskAndAttr (
IN UNIT_TEST_CONTEXT Context
)
{
UINTN PageTable;
PAGING_MODE PagingMode;
VOID *Buffer;
UINTN PageTableBufferSize;
IA32_MAP_ATTRIBUTE MapAttribute;
IA32_MAP_ATTRIBUTE ExpectedMapAttribute;
IA32_MAP_ATTRIBUTE MapMask;
RETURN_STATUS Status;
IA32_MAP_ENTRY *Map;
UINTN MapCount;
PagingMode = Paging4Level;
PageTableBufferSize = 0;
PageTable = 0;
Buffer = NULL;
MapAttribute.Uint64 = 0;
MapAttribute.Bits.Present = 1;
MapMask.Uint64 = 0;
MapMask.Bits.Present = 1;
//
// 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, NULL);
UT_ASSERT_EQUAL (Status, RETURN_INVALID_PARAMETER);
MapMask.Uint64 = MAX_UINT64;
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, 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 = 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, 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, NULL);
UT_ASSERT_EQUAL (Status, RETURN_BUFFER_TOO_SMALL);
Buffer = AllocatePages (EFI_SIZE_TO_PAGES (PageTableBufferSize));
Status = PageTableMap (&PageTable, PagingMode, Buffer, &PageTableBufferSize, SIZE_2GB - SIZE_8KB, SIZE_8KB, &MapAttribute, &MapMask, NULL);
UT_ASSERT_EQUAL (Status, RETURN_SUCCESS);
//
// Still set [2G - 8K, 2G] as not present, this case is permitted. But set [2G - 8K, 2G] as RW is not permitted.
//
PageTableBufferSize = 0;
MapAttribute.Uint64 = 0;
MapMask.Uint64 = 0;
MapMask.Bits.Present = 1;
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, NULL);
UT_ASSERT_EQUAL (Status, RETURN_INVALID_PARAMETER);
//
// Update Page table to set [2G - 8K, 2G] as present and RW. All fields of MapMask should be set.
//
PageTableBufferSize = 0;
MapAttribute.Uint64 = SIZE_2GB - SIZE_8KB;
MapAttribute.Bits.ReadWrite = 1;
MapAttribute.Bits.Present = 1;
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, 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, NULL);
UT_ASSERT_EQUAL (Status, RETURN_SUCCESS);
MapCount = 0;
Status = PageTableParse (PageTable, PagingMode, NULL, &MapCount);
UT_ASSERT_EQUAL (Status, RETURN_BUFFER_TOO_SMALL);
Map = AllocatePages (EFI_SIZE_TO_PAGES (MapCount* sizeof (IA32_MAP_ENTRY)));
Status = PageTableParse (PageTable, PagingMode, Map, &MapCount);
UT_ASSERT_EQUAL (Status, RETURN_SUCCESS);
//
// There should be two ranges [0, 2G-8k] with RW = 0 and [2G-8k, 2G] with RW = 1
//
UT_ASSERT_EQUAL (MapCount, 2);
UT_ASSERT_EQUAL (Map[0].LinearAddress, 0);
UT_ASSERT_EQUAL (Map[0].Length, SIZE_2GB - SIZE_8KB);
ExpectedMapAttribute.Uint64 = 0;
ExpectedMapAttribute.Bits.Present = 1;
UT_ASSERT_EQUAL (Map[0].Attribute.Uint64, ExpectedMapAttribute.Uint64);
UT_ASSERT_EQUAL (Map[1].LinearAddress, SIZE_2GB - SIZE_8KB);
UT_ASSERT_EQUAL (Map[1].Length, SIZE_8KB);
ExpectedMapAttribute.Uint64 = SIZE_2GB - SIZE_8KB;
ExpectedMapAttribute.Bits.Present = 1;
ExpectedMapAttribute.Bits.ReadWrite = 1;
UT_ASSERT_EQUAL (Map[1].Attribute.Uint64, ExpectedMapAttribute.Uint64);
return UNIT_TEST_PASSED;
}
/**
Initialize the unit test framework, suite, and unit tests for the
sample unit tests and run the unit tests.
@retval EFI_SUCCESS All test cases were dispatched.
@retval EFI_OUT_OF_RESOURCES There are not enough resources available to
initialize the unit tests.
**/
EFI_STATUS
EFIAPI
UefiTestMain (
VOID
)
{
EFI_STATUS Status;
UNIT_TEST_FRAMEWORK_HANDLE Framework;
UNIT_TEST_SUITE_HANDLE ManualTestCase;
UNIT_TEST_SUITE_HANDLE RandomTestCase;
Framework = NULL;
DEBUG ((DEBUG_INFO, "%a v%a\n", UNIT_TEST_APP_NAME, UNIT_TEST_APP_VERSION));
//
// Start setting up the test framework for running the tests.
//
Status = InitUnitTestFramework (&Framework, UNIT_TEST_APP_NAME, gEfiCallerBaseName, UNIT_TEST_APP_VERSION);
if (EFI_ERROR (Status)) {
DEBUG ((DEBUG_ERROR, "Failed in InitUnitTestFramework. Status = %r\n", Status));
goto EXIT;
}
//
// Populate the Manual Test Cases.
//
Status = CreateUnitTestSuite (&ManualTestCase, Framework, "Manual Test Cases", "CpuPageTableLib.Manual", NULL, NULL);
if (EFI_ERROR (Status)) {
DEBUG ((DEBUG_ERROR, "Failed in CreateUnitTestSuite for Manual Test Cases\n"));
Status = EFI_OUT_OF_RESOURCES;
goto EXIT;
}
AddTestCase (ManualTestCase, "Check if the input parameters are not supported.", "Manual Test Case1", TestCaseForParameter, NULL, NULL, NULL);
AddTestCase (ManualTestCase, "Check the case that modifying page table doesn't need extra buffer", "Manual Test Case2", TestCaseWhichNoNeedExtraSize, NULL, NULL, NULL);
AddTestCase (ManualTestCase, "Check the case to map [0, 1G] to [8K, 1G+8K]", "Manual Test Case3", TestCase1Gmapto4K, NULL, NULL, NULL);
AddTestCase (ManualTestCase, "Check won't merge entries", "Manual Test Case4", TestCaseManualNotMergeEntry, NULL, NULL, NULL);
AddTestCase (ManualTestCase, "Check if the parent entry has different ReadWrite attribute", "Manual Test Case5", TestCaseManualChangeReadWrite, NULL, NULL, NULL);
AddTestCase (ManualTestCase, "Check if the parent entry has different Nx attribute", "Manual Test Case6", TestCaseManualChangeNx, NULL, NULL, NULL);
AddTestCase (ManualTestCase, "Check if the needed size is expected", "Manual Test Case7", TestCaseManualSizeNotMatch, NULL, NULL, NULL);
AddTestCase (ManualTestCase, "Check MapMask when creating new page table or mapping not-present range", "Manual Test Case8", TestCaseToCheckMapMaskAndAttr, NULL, NULL, NULL);
//
// Populate the Random Test Cases.
//
Status = CreateUnitTestSuite (&RandomTestCase, Framework, "Random Test Cases", "CpuPageTableLib.Random", NULL, NULL);
if (EFI_ERROR (Status)) {
DEBUG ((DEBUG_ERROR, "Failed in CreateUnitTestSuite for Random Test Cases\n"));
Status = EFI_OUT_OF_RESOURCES;
goto EXIT;
}
// AddTestCase (RandomTestCase, "Random Test for Paging4Level", "Random Test Case1", TestCaseforRandomTest, NULL, NULL, &mTestContextPaging4Level);
// AddTestCase (RandomTestCase, "Random Test for Paging4Level1G", "Random Test Case2", TestCaseforRandomTest, NULL, NULL, &mTestContextPaging4Level1GB);
// AddTestCase (RandomTestCase, "Random Test for Paging5Level", "Random Test Case3", TestCaseforRandomTest, NULL, NULL, &mTestContextPaging5Level);
// AddTestCase (RandomTestCase, "Random Test for Paging5Level1G", "Random Test Case4", TestCaseforRandomTest, NULL, NULL, &mTestContextPaging5Level1GB);
// AddTestCase (RandomTestCase, "Random Test for PagingPae", "Random Test Case5", TestCaseforRandomTest, NULL, NULL, &mTestContextPagingPae);
//
// Execute the tests.
//
Status = RunAllTestSuites (Framework);
EXIT:
if (Framework) {
FreeUnitTestFramework (Framework);
}
return Status;
}
/**
Standard POSIX C entry point for host based unit test execution.
@param Argc Number of arguments.
@param Argv Array of arguments.
@return Test application exit code.
**/
INT32
main (
INT32 Argc,
CHAR8 *Argv[]
)
{
InitGlobalData (52);
return UefiTestMain ();
}
|