[tfaber] 74446: [KMTESTS:MM] Add some more tests for physical memory sections: - Show that any alignment for SectionOffset/ViewSize is allowed. It will get automatically fixed up to page alignment ...
2 May
2017
2 May
'17
9:02 a.m.
Author: tfaber
Date: Tue May 2 09:02:10 2017
New Revision: 74446
URL: http://svn.reactos.org/svn/reactos?rev=74446&view=rev
Log:
[KMTESTS:MM]
Add some more tests for physical memory sections:
- Show that any alignment for SectionOffset/ViewSize is allowed. It will get automatically
fixed up to page alignment
- Show that kernel mode can map views beyond the highest physical page, but user mode
cannot
CORE-13113
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] Tue May 2 09:02:10 2017
@@ -409,10 +409,20 @@
PHYSICAL_ADDRESS MyPagePhysical;
PUCHAR ZeroPageContents;
PHYSICAL_ADDRESS ZeroPagePhysical;
+ PHYSICAL_ADDRESS PhysicalAddress;
PVOID Mapping;
+ SYSTEM_BASIC_INFORMATION BasicInfo;
PUCHAR MappingBytes;
SIZE_T ViewSize;
SIZE_T EqualBytes;
+ struct
+ {
+ PVOID Mapping;
+ PHYSICAL_ADDRESS PhysicalAddress;
+ SIZE_T ViewSize;
+ } *UserStruct;
+ PVOID UserMem;
+ SIZE_T UserSize;
MyPage = ExAllocatePoolWithTag(NonPagedPool, PAGE_SIZE, 'MPmK');
if (skip(MyPage != NULL, "Out of memory\n"))
@@ -444,7 +454,7 @@
InitializeObjectAttributes(&ObjectAttributes,
&SectionName,
- OBJ_KERNEL_HANDLE,
+ 0,
NULL,
NULL);
Status = ZwOpenSection(&SectionHandle, SECTION_ALL_ACCESS,
&ObjectAttributes);
@@ -539,7 +549,208 @@
ok_eq_hex(Status, STATUS_SUCCESS);
}
- Status = ZwClose(SectionHandle);
+ /* Unaligned mapping will get aligned automatically */
+ Mapping = NULL;
+ ViewSize = PAGE_SIZE - 4;
+ PhysicalAddress.QuadPart = MyPagePhysical.QuadPart + 4;
+ Status = ZwMapViewOfSection(SectionHandle,
+ ZwCurrentProcess(),
+ &Mapping,
+ 0,
+ 0,
+ &PhysicalAddress,
+ &ViewSize,
+ ViewUnmap,
+ 0,
+ PAGE_READWRITE);
+ ok_eq_hex(Status, STATUS_SUCCESS);
+ if (!skip(NT_SUCCESS(Status), "No view\n"))
+ {
+ ok((LONG_PTR)Mapping > 0, "Mapping = %p\n", Mapping);
+ ok(((ULONG_PTR)Mapping % PAGE_SIZE) == 0, "Mapping = %p\n",
Mapping);
+ ok_eq_ulong(ViewSize, PAGE_SIZE);
+
+ EqualBytes = RtlCompareMemory(Mapping,
+ MyPage,
+ PAGE_SIZE);
+ ok_eq_size(EqualBytes, PAGE_SIZE);
+
+ Status = ZwUnmapViewOfSection(ZwCurrentProcess(), Mapping);
+ ok_eq_hex(Status, STATUS_SUCCESS);
+ }
+
+ /* The following tests need to pass parameters in user mode */
+ UserStruct = NULL;
+ UserMem = NULL;
+ UserSize = PAGE_SIZE;
+ Status = ZwAllocateVirtualMemory(ZwCurrentProcess(),
+ &UserMem,
+ 0,
+ &UserSize,
+ MEM_COMMIT,
+ PAGE_READWRITE);
+ ok_eq_hex(Status, STATUS_SUCCESS);
+ if (NT_SUCCESS(Status))
+ UserStruct = UserMem;
+
+ /* Find highest physical page -- only kernel can map beyond this */
+ Status = ZwQuerySystemInformation(SystemBasicInformation,
+ &BasicInfo,
+ sizeof(BasicInfo),
+ NULL);
+ ok_eq_hex(Status, STATUS_SUCCESS);
+ trace("HighestPhysicalPageNumber: %lx\n",
BasicInfo.HighestPhysicalPageNumber);
+
+ /* Start one page before highest physical -- succeeds for user/kernel */
+ Mapping = NULL;
+ ViewSize = PAGE_SIZE;
+ PhysicalAddress.QuadPart = (ULONGLONG)(BasicInfo.HighestPhysicalPageNumber - 1)
<< PAGE_SHIFT;
+ Status = ZwMapViewOfSection(SectionHandle,
+ ZwCurrentProcess(),
+ &Mapping,
+ 0,
+ 0,
+ &PhysicalAddress,
+ &ViewSize,
+ ViewUnmap,
+ 0,
+ PAGE_READWRITE);
+ ok_eq_hex(Status, STATUS_SUCCESS);
+ if (NT_SUCCESS(Status))
+ ZwUnmapViewOfSection(ZwCurrentProcess(), Mapping);
+
+ /* Repeat from user mode */
+ if (!skip(UserStruct != NULL, "No user memory\n"))
+ {
+ KmtStartSeh()
+ UserStruct->Mapping = NULL;
+ UserStruct->PhysicalAddress.QuadPart = PhysicalAddress.QuadPart;
+ UserStruct->ViewSize = PAGE_SIZE;
+ KmtEndSeh(STATUS_SUCCESS);
+
+ Status = NtMapViewOfSection(SectionHandle,
+ NtCurrentProcess(),
+ &UserStruct->Mapping,
+ 0,
+ 0,
+ &UserStruct->PhysicalAddress,
+ &UserStruct->ViewSize,
+ ViewUnmap,
+ 0,
+ PAGE_READWRITE);
+ ok_eq_hex(Status, STATUS_SUCCESS);
+ if (NT_SUCCESS(Status))
+ {
+ KmtStartSeh()
+ ZwUnmapViewOfSection(ZwCurrentProcess(), UserStruct->Mapping);
+ KmtEndSeh(STATUS_SUCCESS);
+ }
+ }
+
+ /* Now start at highest physical -- fails for user */
+ Mapping = NULL;
+ ViewSize = PAGE_SIZE;
+ PhysicalAddress.QuadPart = (ULONGLONG)BasicInfo.HighestPhysicalPageNumber
<< PAGE_SHIFT;
+ Status = ZwMapViewOfSection(SectionHandle,
+ ZwCurrentProcess(),
+ &Mapping,
+ 0,
+ 0,
+ &PhysicalAddress,
+ &ViewSize,
+ ViewUnmap,
+ 0,
+ PAGE_READWRITE);
+ ok_eq_hex(Status, STATUS_SUCCESS);
+ if (NT_SUCCESS(Status))
+ ZwUnmapViewOfSection(ZwCurrentProcess(), Mapping);
+
+ /* Repeat from user mode */
+ if (!skip(UserStruct != NULL, "No user memory\n"))
+ {
+ KmtStartSeh()
+ UserStruct->Mapping = NULL;
+ UserStruct->PhysicalAddress.QuadPart = PhysicalAddress.QuadPart;
+ UserStruct->ViewSize = PAGE_SIZE;
+ KmtEndSeh(STATUS_SUCCESS);
+
+ Status = NtMapViewOfSection(SectionHandle,
+ NtCurrentProcess(),
+ &UserStruct->Mapping,
+ 0,
+ 0,
+ &UserStruct->PhysicalAddress,
+ &UserStruct->ViewSize,
+ ViewUnmap,
+ 0,
+ PAGE_READWRITE);
+ ok_eq_hex(Status, STATUS_INVALID_PARAMETER_6);
+ if (NT_SUCCESS(Status))
+ {
+ KmtStartSeh()
+ ZwUnmapViewOfSection(ZwCurrentProcess(), UserStruct->Mapping);
+ KmtEndSeh(STATUS_SUCCESS);
+ }
+ }
+
+ /* End of view crosses highest physical -- fails for user */
+ Mapping = NULL;
+ ViewSize = 2 * PAGE_SIZE;
+ PhysicalAddress.QuadPart = (ULONGLONG)(BasicInfo.HighestPhysicalPageNumber - 1)
<< PAGE_SHIFT;
+ Status = ZwMapViewOfSection(SectionHandle,
+ ZwCurrentProcess(),
+ &Mapping,
+ 0,
+ 0,
+ &PhysicalAddress,
+ &ViewSize,
+ ViewUnmap,
+ 0,
+ PAGE_READWRITE);
+ ok_eq_hex(Status, STATUS_SUCCESS);
+ if (NT_SUCCESS(Status))
+ ZwUnmapViewOfSection(ZwCurrentProcess(), Mapping);
+
+ /* Repeat from user mode */
+ if (!skip(UserStruct != NULL, "No user memory\n"))
+ {
+ KmtStartSeh()
+ UserStruct->Mapping = NULL;
+ UserStruct->PhysicalAddress.QuadPart = PhysicalAddress.QuadPart;
+ UserStruct->ViewSize = 2 * PAGE_SIZE;
+ KmtEndSeh(STATUS_SUCCESS);
+
+ Status = NtMapViewOfSection(SectionHandle,
+ NtCurrentProcess(),
+ &UserStruct->Mapping,
+ 0,
+ 0,
+ &UserStruct->PhysicalAddress,
+ &UserStruct->ViewSize,
+ ViewUnmap,
+ 0,
+ PAGE_READWRITE);
+ ok_eq_hex(Status, STATUS_INVALID_PARAMETER_6);
+ if (NT_SUCCESS(Status))
+ {
+ KmtStartSeh()
+ ZwUnmapViewOfSection(ZwCurrentProcess(), UserStruct->Mapping);
+ KmtEndSeh(STATUS_SUCCESS);
+ }
+ }
+
+ /* Free user memory and close section */
+ if (!skip(UserStruct != NULL, "No user memory\n"))
+ {
+ UserSize = 0;
+ Status = ZwFreeVirtualMemory(ZwCurrentProcess(),
+ &UserMem,
+ &UserSize,
+ MEM_RELEASE);
+ ok_eq_hex(Status, STATUS_SUCCESS);
+ }
+
+ Status = ObCloseHandle(SectionHandle, UserMode);
ok_eq_hex(Status, STATUS_SUCCESS);
}
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