[FE training-materials-updates] PAE: the huge page size is in MB, not GB
Michael Opdenacker
michael.opdenacker at free-electrons.com
Wed Oct 10 06:43:35 CEST 2012
Repository : git://git.free-electrons.com/training-materials.git
On branch : master
Link : http://git.free-electrons.com/training-materials/commit/?id=fbdbdc0acdc3371663f13fa128dc901d20d6cf06
>---------------------------------------------------------------
commit fbdbdc0acdc3371663f13fa128dc901d20d6cf06
Author: Michael Opdenacker <michael.opdenacker at free-electrons.com>
Date: Tue Oct 9 14:48:45 2012 +0200
PAE: the huge page size is in MB, not GB
>---------------------------------------------------------------
fbdbdc0acdc3371663f13fa128dc901d20d6cf06
.../kernel-driver-development-memory.tex | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/slides/kernel-driver-development-memory/kernel-driver-development-memory.tex b/slides/kernel-driver-development-memory/kernel-driver-development-memory.tex
index d7d0147..5639fb2 100644
--- a/slides/kernel-driver-development-memory/kernel-driver-development-memory.tex
+++ b/slides/kernel-driver-development-memory/kernel-driver-development-memory.tex
@@ -75,10 +75,11 @@
\begin{itemize}
\item If your 32 bit platform hosts more than 4GB, they just cannot
be mapped
- \item The PAE (Physical Address Expansion) may be supported by your
+ \item PAE (Physical Address Expansion) may be supported by your
architecture
\item Adds some address extension bits used to index memory areas
- \item Allows accessing up to 64 GB of physical memory by 4 GB pages
+ \item Allows accessing up to 64 GB of physical memory through
+ bigger pages (2 MB pages on x86 with PAE)
\item Note that each user-space process is still limited to a 3 GB
memory space
\end{itemize}
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