From: Binbin Zhou Date: Wed, 8 Jun 2022 11:08:21 +0000 (+0800) Subject: docs/zh_CN: riscv: Update the translation of vm-layout.rst to 5.19-rc1 X-Git-Tag: v6.1-rc5~751^2~57 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=f41c74af10583fa440deed2713488176e7efa8b7;p=platform%2Fkernel%2Flinux-starfive.git docs/zh_CN: riscv: Update the translation of vm-layout.rst to 5.19-rc1 Synchronous translation from upstream commit 9d19f2b5256e ("Documentation: riscv: Add sv48 description to VM layout") Signed-off-by: Binbin Zhou Reviewed-by: Yanteng Si Reviewed-by: Wu XiangCheng Link: https://lore.kernel.org/r/10cd6a241a0266d1d19ee5f0b2177d7d14d17ed2.1654685338.git.zhoubinbin@loongson.cn Signed-off-by: Jonathan Corbet --- diff --git a/Documentation/translations/zh_CN/riscv/vm-layout.rst b/Documentation/translations/zh_CN/riscv/vm-layout.rst index 585cb89..91884e2 100644 --- a/Documentation/translations/zh_CN/riscv/vm-layout.rst +++ b/Documentation/translations/zh_CN/riscv/vm-layout.rst @@ -6,6 +6,7 @@ :翻译: 司延腾 Yanteng Si + Binbin Zhou ============================ 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 + __________________|____________|__________________|_________|____________________________________________________________