Re: [Xen-devel] [PATCH 11/20] xen: use XSM instead of IS_PRIV where duplicated

[Ian Campbell <Ian.Campbell@xxxxxxxxxx>]

On Tue, 2012-09-11 at 08:29 +0100, Jan Beulich wrote:
> >  * do_console_io has changed to IS_PRIV from an explicit domid==0
> 
> I see a point in actually limiting this to Dom0 - that's the only
> domain that can't possibly have a virtual console. But I'm not
> really opposed to changing this.

On a debug and/or verbose build of the hypervisor any domain can log
here, and pvops Linux with earlyprintk=xen and/or xen_raw_printk will do
so - it's quite useful for debugging early start of day issues in guest
kernels. Although I suppose we can always comment out the check locally
when doing such debugging.

It occurs to me now that perhaps this should be handled more like the
HVM port e9 stuff (i.e. with rate limiting etc) anyway.

Ian.



_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxx
http://lists.xen.org/xen-devel