Documentation: vm: Add 1GB large page support information

Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git

kernel os linux

This patch adds 1GB large page support information in
Documentation/vm/hugetlbpage.txt

Reference:
https://lkml.org/lkml/2014/10/31/366

Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Reviewed-by: Luiz Capitulino <lcapitulino@redhat.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>

authored by

Masanari Iida and committed by

Jonathan Corbet 11 years ago c0d7305c 747029a5

+2 -2

1 changed file

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Documentation

hugetlbpage.txt

+2 -2

Documentation/vm/hugetlbpage.txt

··· 1 1 2 2 The intent of this file is to give a brief summary of hugetlbpage support in 3 3 the Linux kernel. This support is built on top of multiple page size support 4 - that is provided by most modern architectures. For example, i386 5 - architecture supports 4K and 4M (2M in PAE mode) page sizes, ia64 4 + that is provided by most modern architectures. For example, x86 CPUs normally 5 + support 4K and 2M (1G if architecturally supported) page sizes, ia64 6 6 architecture supports multiple page sizes 4K, 8K, 64K, 256K, 1M, 4M, 16M, 7 7 256M and ppc64 supports 4K and 16M. A TLB is a cache of virtual-to-physical 8 8 translations. Typically this is a very scarce resource on processor.