DMA操作前需要分配物理地址连续的一个Buffer,AllocateCommonBuffer函数提供了这个功能,该函数原型如下: PVOID AllocateCommonBuffer( _In_ PDMA_ADAPTER DmaAdapter, _In_ ULONG Length, _Out_ PPHYSICAL_ADDRESS LogicalAddress, _In_ BOOLEAN CacheEnabled ); 第三个参数有点不是很能理解,PPHYSICAL_ADDRESS Logical...
由此个人认为PPHYSICAL_ADDRESS LogicalAddress 这种定义只是微软命名习惯上的差异,这里的LogicalAddress就是物理地址而并非传统意义上的逻辑地址。
_Out_ PPHYSICAL_ADDRESS LogicalAddress, _In_ BOOLEAN CacheEnabled ); 第三个参数有点不是很能理解,PPHYSICAL_ADDRESS LogicalAddress,至少从定义的变量名上看,微软似乎在暗示我:逻辑地址和物理地址是相同的这样一个事实。 虚拟地址到物理地址的转化方法是与体系结构相关的。有分段、分页两种方式。x86 cpu下分段...
address of the page directory. The following steps are carried out by the processor when translating a linear address to a physical address, as shown in Figure 11–9: 1. The linear address references a location in the linear address space. 2. The 10-bit directory field in the linear addre...
物理地址逻辑地址虚拟地址的概念(Physicaladdress,logicaladdress,virtualaddress)I.conceptPhysicaladdress(physical,address)Usedformemorycellleveladdressing,correspondingtotheaddressbusconnectedtotheprocessorandtheCPU.Thisconceptshouldbeoneofthebestunderstandingoftheconceptsof,butitisworthmentioningthat,althoughthephysicaladdr...
Disclosed is a distributed logical address and physical address conversion apparatus. The apparatus comprises: a server on a main control board and a client on a controlled board; the server is used for obtaining current board configuration information of a system, saving the board configuration ...
逻辑地址(Logical Address) 是 指由程序产生的与段相关的偏移地址部分。例如,你在进行C语言指针编程中,可以读取指针 … blog.chinaunix.net|基于702个网页 2. 逻辑位址 逻辑位址(Logical Address)是指由程式产生的与段相关的偏移位址部分。在Intel保护模式下即是指程式执行代码段限长的偏移位 … ...
In ___, a table associating a logical address with a physical address is updated manually. A. static mapping B. dynamic mapping C. physical mapping D. none of the above 相关知识点: 试题来源: 解析 static mapping 反馈 收藏
The first and second logical addresses are logical addresses that belong to a logical address range which is at least a part of a logical address space. The first physical address is a physical address that belongs to a physical ... R Tatsumi,T Yoshihara 被引量: 0发表: 2021年 Methods and...
Consider a file system on a disk that has both logical and physical block sizes of 512 bytes. Assume that the information about each file is already in memory. For each of the three allocation strategies (contiguous, linked, and indexed), answer these questions: a. How is the logical-to-...