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Commit aca91bfc authored by Borislav Petkov's avatar Borislav Petkov Committed by H. Peter Anvin
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x86-64, docs, mm: Add vsyscall range to virtual address space layout 



Add the end of the virtual address space to its layout documentation.

Signed-off-by: default avatarBorislav Petkov <bp@alien8.de>
Link: http://lkml.kernel.org/r/1362428180-8865-4-git-send-email-bp@alien8.de


Signed-off-by: default avatarH. Peter Anvin <hpa@linux.intel.com>
parent 8e3c2a8c

Documentation/x86/x86_64/mm.txt

+3 −1
Original line number Diff line number Diff line
@@ -13,7 +13,9 @@ ffffe90000000000 - ffffe9ffffffffff (=40 bits) hole 
ffffea0000000000 - ffffeaffffffffff (=40 bits) virtual memory map (1TB)

... unused hole ...

ffffffff80000000 - ffffffffa0000000 (=512 MB)  kernel text mapping, from phys 0

ffffffffa0000000 - fffffffffff00000 (=1536 MB) module mapping space

ffffffffa0000000 - ffffffffff5fffff (=1525 MB) module mapping space

ffffffffff600000 - ffffffffffdfffff (=8 MB) vsyscalls

ffffffffffe00000 - ffffffffffffffff (=2 MB) unused hole



The direct mapping covers all memory in the system up to the highest

memory address (this means in some cases it can also include PCI memory