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Subject[tip:x86/cleanups] x86-64, docs, mm: Add vsyscall range to virtual address space layout
Commit-ID:  aca91bfc67fe356544eb1cfc483c09b27ce49fa9
Gitweb: http://git.kernel.org/tip/aca91bfc67fe356544eb1cfc483c09b27ce49fa9
Author: Borislav Petkov <bp@alien8.de>
AuthorDate: Mon, 4 Mar 2013 21:16:18 +0100
Committer: H. Peter Anvin <hpa@linux.intel.com>
CommitDate: Tue, 2 Apr 2013 16:03:31 -0700

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>
---
Documentation/x86/x86_64/mm.txt | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/Documentation/x86/x86_64/mm.txt b/Documentation/x86/x86_64/mm.txt
index d6498e3..881582f 100644
--- a/Documentation/x86/x86_64/mm.txt
+++ b/Documentation/x86/x86_64/mm.txt
@@ -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

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