The memory layout is written as table but it is inside literal code block, which renders as preformatted text. Write the layout in reST grid table instead. Signed-off-by: Bagas Sanjaya <bagasdotme@xxxxxxxxx> --- Documentation/riscv/vm-layout.rst | 120 +++++++++++++++--------------- 1 file changed, 58 insertions(+), 62 deletions(-) diff --git a/Documentation/riscv/vm-layout.rst b/Documentation/riscv/vm-layout.rst index 5b36e45fef60bd..139320e35de81f 100644 --- a/Documentation/riscv/vm-layout.rst +++ b/Documentation/riscv/vm-layout.rst @@ -30,70 +30,66 @@ the RISC-V Linux Kernel resides. RISC-V Linux Kernel SV39 ------------------------ -:: - - ======================================================================================================================== - Start addr | Offset | End addr | Size | VM area description - ======================================================================================================================== - | | | | - 0000000000000000 | 0 | 0000003fffffffff | 256 GB | user-space virtual memory, different per mm - __________________|____________|__________________|_________|___________________________________________________________ - | | | | - 0000004000000000 | +256 GB | ffffffbfffffffff | ~16M TB | ... huge, almost 64 bits wide hole of non-canonical - | | | | virtual memory addresses up to the -256 GB - | | | | starting offset of kernel mappings. - __________________|____________|__________________|_________|___________________________________________________________ - | - | Kernel-space virtual memory, shared between all processes: - ____________________________________________________________|___________________________________________________________ - | | | | - ffffffc6fee00000 | -228 GB | ffffffc6feffffff | 2 MB | fixmap - ffffffc6ff000000 | -228 GB | ffffffc6ffffffff | 16 MB | PCI io - ffffffc700000000 | -228 GB | ffffffc7ffffffff | 4 GB | vmemmap - ffffffc800000000 | -224 GB | ffffffd7ffffffff | 64 GB | vmalloc/ioremap space - ffffffd800000000 | -160 GB | fffffff6ffffffff | 124 GB | direct mapping of all physical memory - fffffff700000000 | -36 GB | fffffffeffffffff | 32 GB | kasan - __________________|____________|__________________|_________|____________________________________________________________ - | - | - ____________________________________________________________|____________________________________________________________ - | | | | - ffffffff00000000 | -4 GB | ffffffff7fffffff | 2 GB | modules, BPF - ffffffff80000000 | -2 GB | ffffffffffffffff | 2 GB | kernel - __________________|____________|__________________|_________|____________________________________________________________ + +------------------+---------+------------------+---------+----------------------------------------------------------+ + | Start addr | Offset | End addr | Size | VM area description | + +==================+=========+==================+=========+==========================================================+ + | 0000000000000000 | 0 | 0000003fffffffff | 256 GB | user-space virtual memory, different per mm | + +------------------+---------+------------------+---------+----------------------------------------------------------+ + | 0000004000000000 | +256 GB | ffffffbfffffffff | ~16M TB | ... huge, almost 64 bits wide hole of non-canonical | + | | | | | virtual memory addresses up to the -256 GB | + | | | | | starting offset of kernel mappings. | + +------------------+---------+------------------+---------+----------------------------------------------------------+ + | Kernel-space virtual memory, shared between all processes: | + +------------------+---------+------------------+---------+----------------------------------------------------------+ + | ffffffc6fee00000 | -228 GB | ffffffc6feffffff | 2 MB | fixmap | + +------------------+---------+------------------+---------+----------------------------------------------------------+ + | ffffffc6ff000000 | -228 GB | ffffffc6ffffffff | 16 MB | PCI io | + +------------------+---------+------------------+---------+----------------------------------------------------------+ + | ffffffc700000000 | -228 GB | ffffffc7ffffffff | 4 GB | vmemmap | + +------------------+---------+------------------+---------+----------------------------------------------------------+ + | ffffffc800000000 | -224 GB | ffffffd7ffffffff | 64 GB | vmalloc/ioremap space | + +------------------+---------+------------------+---------+----------------------------------------------------------+ + | ffffffd800000000 | -160 GB | fffffff6ffffffff | 124 GB | direct mapping of all physical memory | + +------------------+---------+------------------+---------+----------------------------------------------------------+ + | fffffff700000000 | -36 GB | fffffffeffffffff | 32 GB | kasan | + +------------------+---------+------------------+---------+----------------------------------------------------------+ + | Identical layout to the 39-bit one from here on: | + +------------------+---------+------------------+---------+----------------------------------------------------------+ + | ffffffff00000000 | -4 GB | ffffffff7fffffff | 2 GB | modules, BPF | + +------------------+---------+------------------+---------+----------------------------------------------------------+ + | ffffffff80000000 | -2 GB | ffffffffffffffff | 2 GB | kernel | + +------------------+---------+------------------+---------+----------------------------------------------------------+ RISC-V Linux Kernel SV48 ------------------------ -:: - - ======================================================================================================================== - Start addr | Offset | End addr | Size | VM area description - ======================================================================================================================== - | | | | - 0000000000000000 | 0 | 00007fffffffffff | 128 TB | user-space virtual memory, different per mm - __________________|____________|__________________|_________|___________________________________________________________ - | | | | - 0000800000000000 | +128 TB | ffff7fffffffffff | ~16M TB | ... huge, almost 64 bits wide hole of non-canonical - | | | | virtual memory addresses up to the -128 TB - | | | | starting offset of kernel mappings. - __________________|____________|__________________|_________|___________________________________________________________ - | - | Kernel-space virtual memory, shared between all processes: - ____________________________________________________________|___________________________________________________________ - | | | | - 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 | direct mapping of all physical memory - ffffef8000000000 | -16.5 TB | fffffffeffffffff | 16.5 TB | kasan - __________________|____________|__________________|_________|____________________________________________________________ - | - | Identical layout to the 39-bit one from here on: - ____________________________________________________________|____________________________________________________________ - | | | | - ffffffff00000000 | -4 GB | ffffffff7fffffff | 2 GB | modules, BPF - ffffffff80000000 | -2 GB | ffffffffffffffff | 2 GB | kernel - __________________|____________|__________________|_________|____________________________________________________________ + +------------------+-----------+------------------+---------+-------------------------------------------------------+ + | Start addr | Offset | End addr | Size | VM area description | + +==================+===========+==================+=========+=======================================================+ + | 0000000000000000 | 0 | 00007fffffffffff | 128 TB | user-space virtual memory, different per mm | + +------------------+-----------+------------------+---------+-------------------------------------------------------+ + | 0000800000000000 | +128 TB | ffff7fffffffffff | ~16M TB | ... huge, almost 64 bits wide hole of non-canonical | + | | | | | virtual memory addresses up to the -128 TB | + | | | | | starting offset of kernel mappings. | + +------------------+-----------+------------------+---------+-------------------------------------------------------+ + | Kernel-space virtual memory, shared between all processes: | + +------------------+-----------+------------------+---------+-------------------------------------------------------+ + | 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 | direct mapping of all physical memory | + +------------------+-----------+------------------+---------+-------------------------------------------------------+ + | ffffef8000000000 | -16.5 TB | fffffffeffffffff | 16.5 TB | kasan | + +------------------+-----------+------------------+---------+-------------------------------------------------------+ + | Identical layout to the 39-bit one from here on: | + +------------------+-----------+------------------+---------+-------------------------------------------------------+ + | ffffffff00000000 | -4 GB | ffffffff7fffffff | 2 GB | modules, BPF | + +------------------+-----------+------------------+---------+-------------------------------------------------------+ + | ffffffff80000000 | -2 GB | ffffffffffffffff | 2 GB | kernel | + +------------------+-----------+------------------+---------+-------------------------------------------------------+ base-commit: 0cdb3579f1ee4c1e55acf8dfb0697b660067b1f8 -- An old man doll... just what I always wanted! - Clara
