Re: [PATCH v2] xen: introduce xen_console_io option

[Stefano Stabellini <sstabellini@xxxxxxxxxx>]

On Tue, 13 Jan 2026, Juergen Gross wrote:
> On 13.01.26 08:57, Jürgen Groß wrote:
> > On 13.01.26 01:24, Stefano Stabellini wrote:
> > > Xen can support console_io hypercalls for any domains, not just dom0,
> > > depending on DEBUG and XSM policies. These hypercalls can be very useful
> > > for development and debugging.
> > > 
> > > Introduce a kernel command line option xen_console_io to enable the
> > > usage of console_io hypercalls for any domain upon request. When
> > > xen_console_io is not specified, the current behavior is retained.
> > > 
> > > Signed-off-by: Stefano Stabellini <stefano.stabellini@xxxxxxx>
> > 
> > Reviewed-by: Juergen Gross <jgross@xxxxxxxx>
> 
> Sorry, I need to revoke my R-b.
> 
> I get:
> 
> WARNING: modpost: vmlinux: section mismatch in reference: xen_cons_init+0x0
> (section: .text) -> opt_console_io (section: .init.data)
> 
> I think xen_cons_init() should be __init, too.

Yes you are right, good catch. I am cross-compiling x86 on ARM and my
environment is not warning me about it. I made the change.