公开(公告)号：US20090182973A1

公开(公告)日：2009-07-16

申请号：US11972705

申请日：2008-01-11

申请人： DAN F. GREINER ,  Lisa C. Heller ,  Damian L. Osisek ,  Erwin Pfeffer ,  Timothy J. Slegel ,  Gustav E. Sittmann

发明人： DAN F. GREINER ,  Lisa C. Heller ,  Damian L. Osisek ,  Erwin Pfeffer ,  Timothy J. Slegel ,  Gustav E. Sittmann

IPC分类号： G06F9/34

CPC分类号： G06F12/1009 ,  G06F9/30043 ,  G06F9/30101 ,  G06F9/34 ,  G06F9/342 ,  G06F2212/651 ,  G06F2212/657

摘要： What is provided is a load real address function defined for a machine architecture of a computer system. In one embodiment, a machine instruction containing an opcode is obtained indicating that a load real address is to be performed. The instruction further identifies a first general register. Based on the contents of the machine instruction, a virtual address to be translated is obtained. Dynamic address translation is performed on the virtual address to obtain a segment-frame absolute address of a large block of data in memory. If an extended DAT facility and a format control field in the segment table entry are enabled, the address of the block of data is saved in the first general register. A page index portion and a byte index portion of the virtual address may also be saved in the first general register.

摘要翻译： 提供了为计算机系统的机器结构定义的负载实地址功能。 在一个实施例中，获得包含操作码的机器指令，指示要执行负载实际地址。 该指令进一步标识第一个通用寄存器。 根据机器指令的内容，获得要翻译的虚拟地址。 对虚拟地址执行动态地址转换，以获得存储器中大块数据的段帧绝对地址。 如果分段表项中的扩展DAT功能和格式控制字段被使能，数据块的地址将保存在第一个通用寄存器中。 虚拟地址的页索引部分和字节索引部分也可以保存在第一通用寄存器中。

公开(公告)号：US20090216992A1

公开(公告)日：2009-08-27

申请号：US12037268

申请日：2008-02-26

申请人： DAN F. GREINER ,  Lisa C. Heller ,  Damian L. Osisek ,  Erwin Pfeffer

发明人： DAN F. GREINER ,  Lisa C. Heller ,  Damian L. Osisek ,  Erwin Pfeffer

IPC分类号： G06F12/10

CPC分类号： G06F12/0284 ,  G06F3/0604 ,  G06F3/0667 ,  G06F3/067 ,  G06F9/455 ,  G06F12/10 ,  G06F12/1009 ,  G06F12/1036 ,  G06F12/109 ,  G06F2212/1032 ,  G06F2212/152 ,  G06F2212/50 ,  G06F2212/652 ,  G06F2212/657

摘要： What is provided is an enhanced dynamic address translation facility. In one embodiment, a virtual address to be translated and an initial origin address of a translation table of the hierarchy of translation tables are obtained. Dynamic address translation of the virtual address proceeds. In response to a translation interruption having occurred during dynamic address translation, bits are stored in a translation exception qualifier (TXQ) field to indicate that the exception was either a host DAT exception having occurred while running a host program or a host DAT exception having occurred while running a guest program. The TXQ is further capable of indicating that the exception was associated with a host virtual address derived from a guest page frame real address or a guest segment frame absolute address. The TXQ is further capable of indicating that a larger or smaller host frame size is preferred to back a guest frame.

摘要翻译： 提供的是增强的动态地址转换设施。 在一个实施例中，获得要转换的虚拟地址和翻译表的层次结构的转换表的初始起始地址。 虚拟地址的动态地址转换进行。 响应于在动态地址转换期间发生的翻译中断，比特被存储在转换异常限定符（TXQ）字段中，以指示异常是在运行主机程序或主机DAT异常发生时发生的主机DAT异常 同时运行一个客人程序。 TXQ还能够指示异常与从访客页面帧实际地址或访客段帧绝对地址导出的主机虚拟地址相关联。 TXQ还能够指示较大或较小的主机帧大小优于后端客机帧。