[Lguest] mercurial repo

[ron minnich]

On 7/26/07, Zachary Amsden <zach at vmware.com> wrote:
> ron minnich wrote:
> > Next question. I do have a working patch to allow experts to set the
> > system call #. Really, though, it makes more sense to set this in
> > sysfs or via a per-guest ioctl or some such, right? What's the fix
> > here? Plan 9 port is done, but I do need this change among others.
> >
>
> Allowing one to set the system call # is a bad idea.  You can't allow it
> to overlap with any host IRQ or architectural fault handler.  Because
> Linux uses IPIs in high numbers, and 0-0x1f are architectural faults,
> the only truly safe system call vector that you can dispatch is 0x80.

second option. how about a patch that allows the guest to use EITHER
0x40 or 0x80, but no others? That's also easy.

ron