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authorJiri Slaby <jirislaby@gmail.com>2008-11-08 11:24:57 +0100
committerIngo Molnar <mingo@elte.hu>2008-11-11 19:30:28 +0100
commita4c52791fa8c73e3cffe4a82865edb41e8fe8c3c (patch)
tree856360987d48df0f88f5ac6034a7a417d7fab526
parentfd51b2d7d5df932767b89e00d0871a38a2c53e74 (diff)
downloadop-kernel-dev-a4c52791fa8c73e3cffe4a82865edb41e8fe8c3c.zip
op-kernel-dev-a4c52791fa8c73e3cffe4a82865edb41e8fe8c3c.tar.gz
x86, 64-bit: update address space documentation
Impact: documentation update Commit a6523748bddd38bcec11431f57502090b6014a96 (paravirt/x86, 64-bit: move __PAGE_OFFSET to leave a space for hypervisor) changed address space without changing the documentation. Change it according to the code change -- direct mapping start: ffff810000000000 => ffff880000000000 which gives 57 TiB, something between 45 and 46 bits. Signed-off-by: Jiri Slaby <jirislaby@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
-rw-r--r--Documentation/x86/x86_64/mm.txt2
1 files changed, 1 insertions, 1 deletions
diff --git a/Documentation/x86/x86_64/mm.txt b/Documentation/x86/x86_64/mm.txt
index efce750..29b52b1 100644
--- a/Documentation/x86/x86_64/mm.txt
+++ b/Documentation/x86/x86_64/mm.txt
@@ -6,7 +6,7 @@ Virtual memory map with 4 level page tables:
0000000000000000 - 00007fffffffffff (=47 bits) user space, different per mm
hole caused by [48:63] sign extension
ffff800000000000 - ffff80ffffffffff (=40 bits) guard hole
-ffff810000000000 - ffffc0ffffffffff (=46 bits) direct mapping of all phys. memory
+ffff880000000000 - ffffc0ffffffffff (=57 TB) direct mapping of all phys. memory
ffffc10000000000 - ffffc1ffffffffff (=40 bits) hole
ffffc20000000000 - ffffe1ffffffffff (=45 bits) vmalloc/ioremap space
ffffe20000000000 - ffffe2ffffffffff (=40 bits) virtual memory map (1TB)
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