[tfaber] 68351: [KMTESTS:MM] - Add a test for \Device\PhysicalMemory sections, which shows that we have trouble with PAGE_NOCACHE. CORE-9808
Author: tfaber Date: Sun Jul 5 19:17:50 2015 New Revision: 68351
URL: http://svn.reactos.org/svn/reactos?rev=68351&view=rev Log: [KMTESTS:MM] - Add a test for \Device\PhysicalMemory sections, which shows that we have trouble with PAGE_NOCACHE. CORE-9808
Modified: trunk/rostests/kmtests/ntos_mm/MmSection.c
Modified: trunk/rostests/kmtests/ntos_mm/MmSection.c URL: http://svn.reactos.org/svn/reactos/trunk/rostests/kmtests/ntos_mm/MmSection.... ============================================================================== --- trunk/rostests/kmtests/ntos_mm/MmSection.c [iso-8859-1] (original) +++ trunk/rostests/kmtests/ntos_mm/MmSection.c [iso-8859-1] Sun Jul 5 19:17:50 2015 @@ -381,6 +381,209 @@ } }
+static +VOID +TestPhysicalMemorySection(VOID) +{ + NTSTATUS Status; + UNICODE_STRING SectionName = RTL_CONSTANT_STRING(L"\Device\PhysicalMemory"); + OBJECT_ATTRIBUTES ObjectAttributes; + HANDLE SectionHandle; + PVOID SectionObject; + PUCHAR MyPage; + PHYSICAL_ADDRESS MyPagePhysical; + PUCHAR ZeroPageContents; + PHYSICAL_ADDRESS ZeroPagePhysical; + PVOID Mapping; + PUCHAR MappingBytes; + SIZE_T ViewSize; + SIZE_T EqualBytes; + + MyPage = ExAllocatePoolWithTag(NonPagedPool, PAGE_SIZE, 'MPmK'); + if (skip(MyPage != NULL, "Out of memory\n")) + return; + MyPagePhysical = MmGetPhysicalAddress(MyPage); + RtlFillMemory(MyPage + 0 * PAGE_SIZE / 4, PAGE_SIZE / 4, 0x23); + RtlFillMemory(MyPage + 1 * PAGE_SIZE / 4, PAGE_SIZE / 4, 0x67); + RtlFillMemory(MyPage + 2 * PAGE_SIZE / 4, PAGE_SIZE / 4, 0xab); + RtlFillMemory(MyPage + 3 * PAGE_SIZE / 4, PAGE_SIZE / 4, 0xef); + + ZeroPageContents = ExAllocatePoolWithTag(PagedPool, PAGE_SIZE, 'ZPmK'); + if (skip(ZeroPageContents != NULL, "Out of memory\n")) + { + ExFreePoolWithTag(MyPage, 'MPmK'); + return; + } + ZeroPagePhysical.QuadPart = 0; + + Mapping = MmMapIoSpace(ZeroPagePhysical, PAGE_SIZE, MmCached); + if (skip(Mapping != NULL, "Failed to map zero page\n")) + { + ExFreePoolWithTag(ZeroPageContents, 'ZPmK'); + ExFreePoolWithTag(MyPage, 'MPmK'); + return; + } + + RtlCopyMemory(ZeroPageContents, Mapping, PAGE_SIZE); + MmUnmapIoSpace(Mapping, PAGE_SIZE); + + InitializeObjectAttributes(&ObjectAttributes, + &SectionName, + OBJ_KERNEL_HANDLE, + NULL, + NULL); + Status = ZwOpenSection(&SectionHandle, SECTION_ALL_ACCESS, &ObjectAttributes); + ok_eq_hex(Status, STATUS_SUCCESS); + if (!skip(NT_SUCCESS(Status), "No section\n")) + { + /* Map zero page and compare */ + Mapping = NULL; + ViewSize = PAGE_SIZE; + Status = ZwMapViewOfSection(SectionHandle, + ZwCurrentProcess(), + &Mapping, + 0, + 0, + &ZeroPagePhysical, + &ViewSize, + ViewUnmap, + 0, + PAGE_READWRITE); + ok_eq_hex(Status, STATUS_SUCCESS); + if (!skip(NT_SUCCESS(Status), "No view\n")) + { + EqualBytes = RtlCompareMemory(Mapping, + ZeroPageContents, + PAGE_SIZE); + ok_eq_size(EqualBytes, PAGE_SIZE); + Status = ZwUnmapViewOfSection(ZwCurrentProcess(), Mapping); + ok_eq_hex(Status, STATUS_SUCCESS); + } + + /* Map the zero page non-cached */ + Mapping = NULL; + ViewSize = PAGE_SIZE; + Status = ZwMapViewOfSection(SectionHandle, + ZwCurrentProcess(), + &Mapping, + 0, + 0, + &ZeroPagePhysical, + &ViewSize, + ViewUnmap, + 0, + PAGE_READWRITE | PAGE_NOCACHE); + ok_eq_hex(Status, STATUS_SUCCESS); + if (!skip(NT_SUCCESS(Status), "No view\n")) + { + EqualBytes = RtlCompareMemory(Mapping, + ZeroPageContents, + PAGE_SIZE); + ok_eq_size(EqualBytes, PAGE_SIZE); + Status = ZwUnmapViewOfSection(ZwCurrentProcess(), Mapping); + ok_eq_hex(Status, STATUS_SUCCESS); + } + + /* Map our NP page, compare, and check that modifications are reflected */ + Mapping = NULL; + ViewSize = PAGE_SIZE; + Status = ZwMapViewOfSection(SectionHandle, + ZwCurrentProcess(), + &Mapping, + 0, + 0, + &MyPagePhysical, + &ViewSize, + ViewUnmap, + 0, + PAGE_READWRITE); + ok_eq_hex(Status, STATUS_SUCCESS); + if (!skip(NT_SUCCESS(Status), "No view\n")) + { + EqualBytes = RtlCompareMemory(Mapping, + MyPage, + PAGE_SIZE); + ok_eq_size(EqualBytes, PAGE_SIZE); + + MappingBytes = Mapping; + ok(MappingBytes[5] == 0x23, "Mapping[5] = 0x%x\n", MappingBytes[5]); + ok(MyPage[5] == 0x23, "MyPage[5] = 0x%x\n", MyPage[5]); + + MyPage[5] = 0x44; + ok(MappingBytes[5] == 0x44, "Mapping[5] = 0x%x\n", MappingBytes[5]); + ok(MyPage[5] == 0x44, "MyPage[5] = 0x%x\n", MyPage[5]); + + MappingBytes[5] = 0x88; + ok(MappingBytes[5] == 0x88, "Mapping[5] = 0x%x\n", MappingBytes[5]); + ok(MyPage[5] == 0x88, "MyPage[5] = 0x%x\n", MyPage[5]); + + Status = ZwUnmapViewOfSection(ZwCurrentProcess(), Mapping); + ok_eq_hex(Status, STATUS_SUCCESS); + } + + Status = ZwClose(SectionHandle); + ok_eq_hex(Status, STATUS_SUCCESS); + } + + /* Try flag 0x80000000, which ROS calls SEC_PHYSICALMEMORY */ + InitializeObjectAttributes(&ObjectAttributes, + NULL, + OBJ_KERNEL_HANDLE, + NULL, + NULL); + Status = ZwCreateSection(&SectionHandle, + SECTION_ALL_ACCESS, + &ObjectAttributes, + NULL, + PAGE_READWRITE, + 0x80000000, + NULL); + ok_eq_hex(Status, STATUS_INVALID_PARAMETER_6); + if (NT_SUCCESS(Status)) + ZwClose(SectionHandle); + + /* Assertion failure: AllocationAttributes & SEC_IMAGE | SEC_RESERVE | SEC_COMMIT */ + if (!KmtIsCheckedBuild) + { + InitializeObjectAttributes(&ObjectAttributes, + NULL, + OBJ_KERNEL_HANDLE, + NULL, + NULL); + Status = MmCreateSection(&SectionObject, + SECTION_ALL_ACCESS, + &ObjectAttributes, + NULL, + PAGE_READWRITE, + 0x80000000, + NULL, + NULL); + ok_eq_hex(Status, STATUS_INVALID_PARAMETER_6); + if (NT_SUCCESS(Status)) + ObDereferenceObject(SectionObject); + } + + InitializeObjectAttributes(&ObjectAttributes, + NULL, + OBJ_KERNEL_HANDLE, + NULL, + NULL); + Status = MmCreateSection(&SectionObject, + SECTION_ALL_ACCESS, + &ObjectAttributes, + NULL, + PAGE_READWRITE, + SEC_RESERVE | 0x80000000, + NULL, + NULL); + ok_eq_hex(Status, STATUS_INVALID_PARAMETER_6); + if (NT_SUCCESS(Status)) + ObDereferenceObject(SectionObject); + + ExFreePoolWithTag(ZeroPageContents, 'ZPmK'); + ExFreePoolWithTag(MyPage, 'MPmK'); +} + START_TEST(MmSection) { NTSTATUS Status; @@ -453,4 +656,6 @@ ZwClose(FileHandle2); if (FileHandle1) ZwClose(FileHandle1); + + TestPhysicalMemorySection(); }
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