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    Dynamic address translation with DAT protection
    1.
    发明授权
    Dynamic address translation with DAT protection 有权
    动态地址转换与DAT保护

    公开(公告)号：US08019964B2

    公开(公告)日：2011-09-13

    申请号：US11972715

    申请日：2008-01-11

    申请人： Dan F. Greiner ,  Charles W. Gainey, Jr. ,  Lisa C. Heller ,  Damian L. Osisek ,  Erwin Pfeffer ,  Timothy J. Slegel ,  Charles F. Webb

    发明人： Dan F. Greiner ,  Charles W. Gainey, Jr. ,  Lisa C. Heller ,  Damian L. Osisek ,  Erwin Pfeffer ,  Timothy J. Slegel ,  Charles F. Webb

    IPC分类号： G06F12/16

    CPC分类号： G06F12/1009 ,  G06F12/145 ,  G06F2212/651 ,  G06F2212/652

    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 any one of a region first table, a region second table, a region third table, or a segment table are obtained. Based on the obtained initial origin address, a segment table entry is obtained which contains a format control and DAT protection fields. If the format control field is enabled, obtaining from the translation table entry a segment-frame absolute address of a large block of data in main storage. The segment-frame absolute address is combined with a page index portion and a byte index portion of the virtual address to form a translated address of the desired block of data. If the DAT protection field is not enabled, fetches and stores are permitted to the desired block of data addressed by the translated virtual address.

    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区域第一表，区域秒表，区域第三表或段表中的任何一个的初始起始地址。 基于获得的初始起始地址，获得包含格式控制和DAT保护字段的段表条目。 如果格式控制字段被使能，则从转换表条目获得主存储器中的大块数据的段帧绝对地址。 分段帧绝对地址与虚拟地址的页索引部分和字节索引部分组合，以形成所需数据块的转换地址。 如果DAT保护字段未被使能，则获取和存储被允许被转换的虚拟地址寻址的所需数据块。

    DYNAMIC ADDRESS TRANSLATION WITH FETCH PROTECTION
    2.
    发明申请
    DYNAMIC ADDRESS TRANSLATION WITH FETCH PROTECTION 有权
    具有保护功能的动态地址转换

    公开(公告)号：US20090182971A1

    公开(公告)日：2009-07-16

    申请号：US11972688

    申请日：2008-01-11

    申请人： DAN F. GREINER ,  Charles W. Gainey, JR. ,  Lisa C. Heller ,  Damian L. Osisek ,  Erwin Pfeffer ,  Timothy J. Slegel ,  Charles F. Webb

    发明人： DAN F. GREINER ,  Charles W. Gainey, JR. ,  Lisa C. Heller ,  Damian L. Osisek ,  Erwin Pfeffer ,  Timothy J. Slegel ,  Charles F. Webb

    IPC分类号： G06F12/10

    CPC分类号： G06F12/1027 ,  G06F9/30047 ,  G06F12/0215 ,  G06F12/1009 ,  G06F12/1036 ,  G06F12/145 ,  G06F2212/1052 ,  G06F2212/654 ,  G06F2212/656 ,  G06F2212/68

    摘要： What is provided is an enhanced dynamic address translation facility. In one embodiment, a virtual address to be translated is first obtained and an initial origin address of a translation table of the hierarchy of translation tables is obtained. Based on the obtained initial origin, a segment table entry is obtained. The segment table entry is configured to contain a format control and access validity fields. If the format control and access validity fields are enabled, the segment table entry further contains an access control field, a fetch protection field, and a segment-frame absolute address. Store operations are permitted only if the access control field matches a program access key provided by any one of a Program Status Word or an operand of a program instruction being executed. Fetch operations are permitted if the program access key associated with the virtual address is equal to the segment access control field.

    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，首先获得要被翻译的虚拟地址，并且获得翻译表层级的翻译表的初始起始地址。 基于获得的初始来源，获得段表条目。 段表项被配置为包含格式控制和访问有效性字段。 如果启用格式控制和访问有效性字段，则段表条目还包含访问控制字段，提取保护字段和段帧绝对地址。 仅当访问控制字段与程序状态字或正在执行的程序指令的操作数提供的程序访问键匹配时，才允许存储操作。 如果与虚拟地址相关联的程序访问密钥等于段访问控制字段，则允许获取操作。

    Dynamic address translation with fetch protection
    3.
    发明授权
    Dynamic address translation with fetch protection 有权
    动态地址转换带保护

    公开(公告)号：US08677098B2

    公开(公告)日：2014-03-18

    申请号：US11972688

    申请日：2008-01-11

    申请人： Dan F. Greiner ,  Charles W. Gainey, Jr. ,  Lisa C. Heller ,  Damian L. Osisek ,  Erwin Pfeffer ,  Timothy J. Slegel ,  Charles F. Webb

    发明人： Dan F. Greiner ,  Charles W. Gainey, Jr. ,  Lisa C. Heller ,  Damian L. Osisek ,  Erwin Pfeffer ,  Timothy J. Slegel ,  Charles F. Webb

    IPC分类号： G06F12/00 ,  G06F13/00 ,  G06F13/28

    CPC分类号： G06F12/1027 ,  G06F9/30047 ,  G06F12/0215 ,  G06F12/1009 ,  G06F12/1036 ,  G06F12/145 ,  G06F2212/1052 ,  G06F2212/654 ,  G06F2212/656 ,  G06F2212/68

    摘要： What is provided is an enhanced dynamic address translation facility. In one embodiment, a virtual address to be translated is first obtained and an initial origin address of a translation table of the hierarchy of translation tables is obtained. Based on the obtained initial origin, a segment table entry is obtained. The segment table entry is configured to contain a format control and access validity fields. If the format control and access validity fields are enabled, the segment table entry further contains an access control field, a fetch protection field, and a segment-frame absolute address. Store operations are permitted only if the access control field matches a program access key provided by any one of a Program Status Word or an operand of a program instruction being executed. Fetch operations are permitted if the program access key associated with the virtual address is equal to the segment access control field.

    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，首先获得要被翻译的虚拟地址，并且获得翻译表层级的翻译表的初始起始地址。 基于获得的初始来源，获得段表条目。 段表项被配置为包含格式控制和访问有效性字段。 如果启用格式控制和访问有效性字段，则段表条目还包含访问控制字段，提取保护字段和段帧绝对地址。 仅当访问控制字段与程序状态字或正在执行的程序指令的操作数提供的程序访问键匹配时，才允许存储操作。 如果与虚拟地址相关联的程序访问密钥等于段访问控制字段，则允许获取操作。

    DYNAMIC ADDRESS TRANSLATION WITH DAT PROTECTION
    4.
    发明申请
    DYNAMIC ADDRESS TRANSLATION WITH DAT PROTECTION 有权
    动态地址翻译与DAT保护

    公开(公告)号：US20090187732A1

    公开(公告)日：2009-07-23

    申请号：US11972715

    申请日：2008-01-11

    申请人： DAN F. GREINER ,  Charles W. Gainey, JR. ,  Lisa C. Heller ,  Damian L. Osisek ,  Erwin Pfeffer ,  Timothy J. Slegel ,  Charles F. Webb

    发明人： DAN F. GREINER ,  Charles W. Gainey, JR. ,  Lisa C. Heller ,  Damian L. Osisek ,  Erwin Pfeffer ,  Timothy J. Slegel ,  Charles F. Webb

    IPC分类号： G06F12/10

    CPC分类号： G06F12/1009 ,  G06F12/145 ,  G06F2212/651 ,  G06F2212/652

    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 any one of a region first table, a region second table, a region third table, or a segment table are obtained. Based on the obtained initial origin address, a segment table entry is obtained which contains a format control and DAT protection fields. If the format control field is enabled, obtaining from the translation table entry a segment-frame absolute address of a large block of data in main storage. The segment-frame absolute address is combined with a page index portion and a byte index portion of the virtual address to form a translated address of the desired block of data. If the DAT protection field is not enabled, fetches and stores are permitted to the desired block of data addressed by the translated virtual address.

    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区域第一表，区域秒表，区域第三表或段表中的任何一个的初始起始地址。 基于获得的初始起始地址，获得包含格式控制和DAT保护字段的段表条目。 如果格式控制字段被使能，则从转换表条目获得主存储器中的大块数据的段帧绝对地址。 分段帧绝对地址与虚拟地址的页索引部分和字节索引部分组合，以形成所需数据块的转换地址。 如果DAT保护字段未被使能，则获取和存储被允许被转换的虚拟地址寻址的所需数据块。

    DYNAMIC ADDRESS TRANSLATION WITH ACCESS CONTROL
    6.
    发明申请
    DYNAMIC ADDRESS TRANSLATION WITH ACCESS CONTROL 有权
    动态地址翻译与访问控制

    公开(公告)号：US20090182974A1

    公开(公告)日：2009-07-16

    申请号：US11972682

    申请日：2008-01-11

    申请人： DAN F. GREINER ,  Charles W. Gainey, JR. ,  Lisa C. Heller ,  Damian L. Osisek ,  Erwin Pfeffer ,  Timothy J. Slegel ,  Charles E. Webb

    发明人： DAN F. GREINER ,  Charles W. Gainey, JR. ,  Lisa C. Heller ,  Damian L. Osisek ,  Erwin Pfeffer ,  Timothy J. Slegel ,  Charles E. Webb

    IPC分类号： G06F12/10

    CPC分类号： G06F12/1475 ,  G06F12/1036 ,  G06F12/109

    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. Based on the origin address, a segment table entry is obtained which contains a format control field and an access validity field. If the format control and access validity are enabled, the segment table entry further contains an access control and fetch protection fields, and a segment-frame absolute address. Store operations to the block of data are permitted only if the access control field matches a program access key provided by either a Program Status Word or an operand of a program instruction being executed. Fetch operations from the desired block of data are permitted only if the program access key associated with the virtual address is equal to the segment access control field.

    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。 基于原始地址，获得包含格式控制字段和访问有效性字段的段表条目。 如果启用格式控制和访问有效性，则段表条目还包含访问控制和提取保护字段以及段帧绝对地址。 仅当访问控制字段与由程序状态字或正在执行的程序指令的操作数提供的程序访问键匹配时，才允许对数据块进行存储操作。 只有当与虚拟地址相关联的程序访问密钥等于段访问控制字段时，才允许从所需数据块获取操作。

    DYNAMIC ADDRESS TRANSLATION WITH FORMAT CONTROL
    9.
    发明申请
    DYNAMIC ADDRESS TRANSLATION WITH FORMAT CONTROL 有权
    动态地址翻译与格式控制

    公开(公告)号：US20090182972A1

    公开(公告)日：2009-07-16

    申请号：US11972697

    申请日：2008-01-11

    申请人： DAN F. GREINER ,  Lisa C. Heller ,  Damian L. Osisek ,  Erwin Pfeffer ,  Timothy J. Slegel ,  Charles F. Webb

    发明人： DAN F. GREINER ,  Lisa C. Heller ,  Damian L. Osisek ,  Erwin Pfeffer ,  Timothy J. Slegel ,  Charles F. Webb

    IPC分类号： G06F12/10

    CPC分类号： G06F12/1009 ,  G06F12/1027

    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. An index portion of the virtual address is used to reference an entry in the translation table. If a format control field contained in the translation table entry is enabled, the table entry contains a frame address of a large block of data of at least 1M byte in size. The frame address is then combined with an offset portion of the virtual address to form the translated address of a small 4K byte block of data in main storage or memory.

    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。 虚拟地址的索引部分用于引用转换表中的条目。 如果启用了转换表条目中包含的格式控制字段，则表项包含大小至少为1M字节的大块数据的帧地址。 然后将帧地址与虚拟地址的偏移部分组合以形成主存储器或存储器中的小4K字节数据块的转换地址。

    Dynamic address translation with change record override
    10.
    发明授权
    Dynamic address translation with change record override 有权
    动态地址转换与更改记录覆盖

    公开(公告)号：US08117417B2

    公开(公告)日：2012-02-14

    申请号：US11972694

    申请日：2008-01-11

    申请人： Dan F. Greiner ,  Lisa C. Heller ,  Damian L. Osisek ,  Erwin Pfeffer ,  Timothy J. Slegel ,  Charles F. Webb

    发明人： Dan F. Greiner ,  Lisa C. Heller ,  Damian L. Osisek ,  Erwin Pfeffer ,  Timothy J. Slegel ,  Charles F. Webb

    IPC分类号： G06F12/00 ,  G06F13/00 ,  G06F13/28

    CPC分类号： G06F12/1009 ,  G06F9/30054 ,  G06F9/30101 ,  G06F9/455 ,  G06F12/1045 ,  G06F12/109 ,  G06F12/1475

    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. A segment table entry obtained from a segment table contains a format control field. If the format control field is enabled, a segment-frame absolute address of a large block of data in main storage is obtained from the segment table entry. Each 4K byte block of data within the large block has an associated storage key. Store operations associated with the virtual address are performed to the desired block of data. If the change recording override field is disabled, the change bit of the storage key associated with the desired 4K byte block is set to 1. An indication is then provided that the desired 4K byte block has been modified.

    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。 从段表获得的段表条目包含格式控制字段。 如果启用格式控制字段，则从段表条目获取主存储器中的大块数据的分段帧绝对地址。 大块内的每4K字节的数据块具有关联的存储密钥。 与虚拟地址相关联的存储操作被执行到期望的数据块。 如果改变记录覆盖字段被禁用，则与期望的4K字节块相关联的存储密钥的改变位被设置为1.然后提供所需的4K字节块已被修改的指示。