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DateWed, 15 Mar 2006 10:27:15 +0100
FromGerd Hoffmann <>
SubjectRe: [RFC, PATCH 7/24] i386 Vmi memory hole
>        pushl $SYSENTER_RETURN
>
> SYSENTER_RETURN is a link time constant that is defined based on the
> location of the vsyscall page. If the vsyscall page can move, this can
> not be a constant.

The vsyscall page is at PAGE_OFFSET - 2*PAGE_SIZE. It doesn't move. At
least not at runtime. At compile time it can change with the new
VMSPLIT config options, but that isn't a problem ;)

cheers,

Gerd

--
Gerd 'just married' Hoffmann <kraxel@suse.de>
I'm the hacker formerly known as Gerd Knorr.
http://www.suse.de/~kraxel/just-married.jpeg
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