Commit f41c74af authored by Binbin Zhou's avatar Binbin Zhou Committed by Jonathan Corbet
Browse files

docs/zh_CN: riscv: Update the translation of vm-layout.rst to 5.19-rc1 



Synchronous translation from upstream commit 9d19f2b5
("Documentation: riscv: Add sv48 description to VM layout")

Signed-off-by: default avatarBinbin Zhou <zhoubinbin@loongson.cn>
Reviewed-by: default avatarYanteng Si <siyanteng@loongson.cn>
Reviewed-by: default avatarWu XiangCheng <bobwxc@email.cn>
Link: https://lore.kernel.org/r/10cd6a241a0266d1d19ee5f0b2177d7d14d17ed2.1654685338.git.zhoubinbin@loongson.cn


Signed-off-by: default avatarJonathan Corbet <corbet@lwn.net>
parent 1a5b8aa2

Documentation/translations/zh_CN/riscv/vm-layout.rst

+37 −0
Original line number Diff line number Diff line
@@ -6,6 +6,7 @@ 
:翻译:



 司延腾 Yanteng Si <siyanteng@loongson.cn>

        Binbin Zhou <zhoubinbin@loongson.cn>



============================

RISC-V Linux上的虚拟内存布局
@@ -65,3 +66,39 @@ RISC-V Linux Kernel SV39 
   ffffffff00000000 |   -4    GB | ffffffff7fffffff |    2 GB | modules, BPF

   ffffffff80000000 |   -2    GB | ffffffffffffffff |    2 GB | kernel

  __________________|____________|__________________|_________|____________________________________________________________





RISC-V Linux Kernel SV48

------------------------



::



 ========================================================================================================================

      开始地址       |   偏移      |     结束地址      |  大小    | 虚拟内存区域描述

 ========================================================================================================================

                    |            |                  |         |

   0000000000000000 |    0       | 00007fffffffffff |  128 TB | 用户空间虚拟内存，每个内存管理器不同

  __________________|____________|__________________|_________|___________________________________________________________

                    |            |                  |         |

   0000800000000000 | +128    TB | ffff7fffffffffff | ~16M TB | ... 巨大的、几乎64位宽的直到内核映射的-128TB地方

                    |            |                  |         |     开始偏移的非经典虚拟内存地址空洞。

                    |            |                  |         |

  __________________|____________|__________________|_________|___________________________________________________________

                                                              |

                                                              | 内核空间的虚拟内存，在所有进程之间共享:

  ____________________________________________________________|___________________________________________________________

                    |            |                  |         |

   ffff8d7ffee00000 |  -114.5 TB | ffff8d7ffeffffff |    2 MB | fixmap

   ffff8d7fff000000 |  -114.5 TB | ffff8d7fffffffff |   16 MB | PCI io

   ffff8d8000000000 |  -114.5 TB | ffff8f7fffffffff |    2 TB | vmemmap

   ffff8f8000000000 |  -112.5 TB | ffffaf7fffffffff |   32 TB | vmalloc/ioremap space

   ffffaf8000000000 |  -80.5  TB | ffffef7fffffffff |   64 TB | 直接映射所有物理内存

   ffffef8000000000 |  -16.5  TB | fffffffeffffffff | 16.5 TB | kasan

  __________________|____________|__________________|_________|____________________________________________________________

                                                              |

                                                              | 从此处开始，与39-bit布局相同：

  ____________________________________________________________|____________________________________________________________

                    |            |                  |         |

   ffffffff00000000 |   -4    GB | ffffffff7fffffff |    2 GB | modules, BPF

   ffffffff80000000 |   -2    GB | ffffffffffffffff |    2 GB | kernel

  __________________|____________|__________________|_________|____________________________________________________________