On Fri, May 14, 2021 at 6:23 AM Richard Henderson <
richard.hender...@linaro.org> wrote:

> On 5/6/21 12:53 PM, Warner Losh wrote:
> >
> >
> > On Thu, May 6, 2021 at 11:51 AM Richard Henderson <
> richard.hender...@linaro.org
> > <mailto:richard.hender...@linaro.org>> wrote:
> >
> >     On 5/6/21 10:38 AM, Warner Losh wrote:
> >      > The trap number for a page fault on BSD systems is T_PAGEFLT not
> 0xe. 0xe is
> >      > used by Linux and represents the intel hardware trap vector. The
> BSD
> >     kernels,
> >      > however, translate this to T_PAGEFLT in their Xpage, Xtrap0e,
> Xtrap14,
> >     etc fault
> >      > handlers. This is true for i386 and x86_64, though the name of
> the trap
> >     hanlder
> >      > can very on the flavor of BSD. As far as I can tell, Linux
> doesn't provide a
> >      > define for this value. Invent a new one (PAGE_FAULT_TRAP) and use
> it
> >     instead to
> >      > avoid uglier ifdefs.
> >      >
> >      > Signed-off-by: Mark Johnston<ma...@freebsd.org>
> >      > Signed-off-by: Juergen Lock<n...@freebsd.org>
> >      > [ Rework to avoid ifdefs and expand it to i386 ]
> >      > Signed-off-by: Warner Losh<i...@bsdimp.com <mailto:i...@bsdimp.com
> >>
> >      > ---
> >      >   accel/tcg/user-exec.c | 14 ++++++++++++--
> >      >   1 file changed, 12 insertions(+), 2 deletions(-)
> >
> >     Queued to tcg-next, thanks.
> >
> >     Looks like this area could use a bit of cleanup...
> >
> >
> > No arguments from me there... Thanks!
>
> Dequeueing.
>
> This doesn't work on our "make vm-build-{freebsd,openbsd} images, as Peter
> helpfully pointed out after I sent the pull request.  I don't know enough
> about
> any of the BSDs to know what's expected.
>

OK. I'll take a closer look. It's survived the make vm-build-freebsd in the
past, so
I'm a little surprised at this...

Warner

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