diff options
Diffstat (limited to 'docs')
| -rw-r--r-- | docs/mem_layout.txt | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/docs/mem_layout.txt b/docs/mem_layout.txt new file mode 100644 index 0000000..df24737 --- /dev/null +++ b/docs/mem_layout.txt @@ -0,0 +1,23 @@ +Start Sz P4Idx Desc +/end P3Idx +--- --- --- --- +0x0000_0000_0000_0000 128T 0~255 userspace memory +0x0000_7fff_ffff_ffff 0 (4k pages) + +0x0000_8000_0000_0000 ~2^64 - unused hole due to sign extension +0xffff_7fff_0000_0000 - (not mapped) + +0xffff_8000_0000_0000 64G 256 Identical mapping of the whole physical +0xffff_800f_ffff_ffff 0~63 memory (1G pages) + +0xffff_8010_0000_0000 64G 256 Hole +0xffff_801f_ffff_ffff 64~127 (not mapped) + +0xffff_8020_0000_0000 64G 256 Kernel image (text and data) (linker) +0xffff_802f_ffff_ffff 128~191 (1G pages) + +0xffff_8030_0000_0000 64G 256 Kernel Heap +0xffff_803f_ffff_ffff 192~255 (4K pages) + +NOTE: "offset" doesn't count the sign extension, i.e. ignoring the 16 MSBs of +ones. |