ULONG i;
NTSTATUS Status;
ULONG_PTR NumberOfPages;
+ PVOID BaseAddress = NULL;
/* Create a memory area. */
MmLockAddressSpace(MmGetKernelAddressSpace());
Status = MmCreateMemoryArea(MmGetKernelAddressSpace(),
0, // nothing checks for VACB mareas, so set to 0
- &Vacb->BaseAddress,
+ &BaseAddress,
VACB_MAPPING_GRANULARITY,
PAGE_READWRITE,
(PMEMORY_AREA*)&Vacb->MemoryArea,
0,
PAGE_SIZE);
+ ASSERT(Vacb->BaseAddress == NULL);
+ Vacb->BaseAddress = BaseAddress;
MmUnlockAddressSpace(MmGetKernelAddressSpace());
if (!NT_SUCCESS(Status))
{
ASSERT(((ULONG_PTR)Vacb->BaseAddress % PAGE_SIZE) == 0);
ASSERT((ULONG_PTR)Vacb->BaseAddress > (ULONG_PTR)MmSystemRangeStart);
+ ASSERT((ULONG_PTR)Vacb->BaseAddress + VACB_MAPPING_GRANULARITY - 1 > (ULONG_PTR)MmSystemRangeStart);
/* Create a virtual mapping for this memory area */
NumberOfPages = BYTES_TO_PAGES(VACB_MAPPING_GRANULARITY);
KeBugCheck(MEMORY_MANAGEMENT);
}
+ ASSERT(BaseAddress == Vacb->BaseAddress);
+ ASSERT(i * PAGE_SIZE < VACB_MAPPING_GRANULARITY);
+ ASSERT((ULONG_PTR)Vacb->BaseAddress + (i * PAGE_SIZE) >= (ULONG_PTR)BaseAddress);
+ ASSERT((ULONG_PTR)Vacb->BaseAddress + (i * PAGE_SIZE) > (ULONG_PTR)MmSystemRangeStart);
+
Status = MmCreateVirtualMapping(NULL,
(PVOID)((ULONG_PTR)Vacb->BaseAddress + (i * PAGE_SIZE)),
PAGE_READWRITE,
ASSERT(Vacb->PinCount == 0);
ASSERT(Vacb->ReferenceCount == 0);
+ RtlFillMemory(Vacb, sizeof(Vacb), 0xfd);
ExFreeToNPagedLookasideList(&VacbLookasideList, Vacb);
return STATUS_SUCCESS;
}