Re: [RFC] x86-64: Add vsyscall=emulate|native|none option

From: Linus Torvalds
Date: Tue Aug 09 2011 - 15:55:23 EST


On Tue, Aug 9, 2011 at 9:47 AM, Andy Lutomirski <luto@xxxxxxx> wrote:
> vsyscall=native makes vsyscalls as fast as syscalls and makes pin
> and DynamoRIO work.  vsyscall=emulate (default) preserves current
> behavior, and vsyscall=none is good for paranoid people who don't
> need their boxes to work reliably.

I think at this stage we should do this, but additionally just change
the default to 'native', avoiding the incompatibilities.

Linus
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