Re: Re: [PATCH] make c/s 21089 work again with c/s 21092

[Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>]

On Tue, Apr 13, 2010 at 04:53:35PM +0100, Jan Beulich wrote:
> >>> Bastian Blank <waldi@debian.org> 13.04.10 17:10 >>>
> >On Tue, Apr 13, 2010 at 02:36:55PM +0100, Jan Beulich wrote:
> >> Unfortunately the latter c/s' change to mpparse.c yielded the former
> >> patch non-functional - Xen's serial port IRQ is not in IQR_DISABLED
> >> state, yet must be allowed to get its trigger mode and polarity set
> >> up in order for it to be usable.
> >
> >This looks not right. The original patch was designed to keep this
> >function away from the irqs of the serial port. This patch adds another
> >check for disallowing access but does not touch the IQR_DISABLED check.
> >
> >Please explain which machines have non-legacy configured interrupts for
> >the first two serial ports.
> 
> I'm talking about PCI serial cards - in the one case I'm working with,

Can't you use polling for it? For example this is what I do for my PCI
serial card:

com1=115200,8n1,0xd800,0