LowAddress.QuadPart = 0;

MAX_MEM(HighAddress.QuadPart);

// 分配4K的共享缓冲区

Mdl = MmAllocatePagesForMdl(LowAddress,

HighAddress,

LowAddress,

TotalBytes);

if (!Mdl)

{

return STATUS_INSUFFICIENT_RESOURCES;

}

Status = ObReferenceObjectByHandle

(

ProcessHandle,

PROCESS_VM_OPERATION,

*PsProcessType,

UserMode,

(PVOID*)(&Process),

NULL);

if (!NT_SUCCESS(Status))

{

__try

{

*lpStatus = STATUS_INSUFFICIENT_RESOURCES;

return STATUS_INSUFFICIENT_RESOURCES;

}

__except (1)

{

return STATUS_INSUFFICIENT_RESOURCES;

}

}

KeStackAttachProcess((PRKPROCESS)(PVOID)(Process), &ApcState);

//KdPrint(("jmg-kernel-> AllocateVirtualMemory call Process: %s\n", PsGetProcessImageFileName(PsGetCurrentProcess())));

// 映射共享缓冲区到用户地址空间

UserVAToReturn = MmMapLockedPagesSpecifyCache

(Mdl,

UserMode,

MmCached,

NULL,

FALSE,

NormalPagePriority);

Mdl->MdlFlags = Mdl->MdlFlags | MDL_MAPPED_TO_SYSTEM_VA;

PVOID MappedSystemCallTable = MmMapLockedPages(Mdl, UserMode);

KeUnstackDetachProcess(&ApcState);

ObDereferenceObject(Process);

if (!UserVAToReturn)

{

MmFreePagesFromMdl(Mdl);

IoFreeMdl(Mdl);

return STATUS_INSUFFICIENT_RESOURCES;

}

映射 到了R3 的地址..mdl地址属性应该怎么改成可执行呢？？

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