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: Borislav Petkov <bp@alien8.de> Link: http://lkml.kernel.org/r/1362428180-8865-4-git-send-email-bp@alien8.de Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
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@ -13,7 +13,9 @@ ffffe90000000000 - ffffe9ffffffffff (=40 bits) hole
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ffffea0000000000 - ffffeaffffffffff (=40 bits) virtual memory map (1TB)
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... unused hole ...
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ffffffff80000000 - ffffffffa0000000 (=512 MB) kernel text mapping, from phys 0
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ffffffffa0000000 - fffffffffff00000 (=1536 MB) module mapping space
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ffffffffa0000000 - ffffffffff5fffff (=1525 MB) module mapping space
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ffffffffff600000 - ffffffffffdfffff (=8 MB) vsyscalls
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ffffffffffe00000 - ffffffffffffffff (=2 MB) unused hole
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The direct mapping covers all memory in the system up to the highest
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memory address (this means in some cases it can also include PCI memory
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