On Thu, May 6, 2021 at 11:51 AM Richard Henderson <richard.henderson@linaro.org
<mailto:richard.henderson@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<markj@FreeBSD.org>
> Signed-off-by: Juergen Lock<nox@FreeBSD.org>
> [ Rework to avoid ifdefs and expand it to i386 ]
> Signed-off-by: Warner Losh<imp@bsdimp.com <mailto:imp@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!