Re: [Xen-devel] serial8250: too much work for irq4

[Markus Armbruster <armbru@xxxxxxxxxx>]

Ian Jackson <Ian.Jackson@xxxxxxxxxxxxx> writes:

> Keir Fraser writes ("Re: [Xen-devel] serial8250: too much work for irq4"):
>> Perhaps we could add a qemu command-line option to force accurate uart
>> emulation w.r.t. programmed FIFO depth and baud rate? Then those who want
>> this more accurate but more expensive and slower behaviour can configure it.
>
> That would certainly be possible.  Our hw/serial.c is very like
> upstream's, and the same issue will apply to (for example) KVM, so we
> should coordinate any such change with upstream.  I would suggest we
> crosspost the patch to xen-devel and qemu-devel.
>
> Markus: are you sufficiently bothered about this that you'd like to
> supply a patch to change the behaviour in the way Keir suggests :-).
>
> Ian.

;)

I don't yet know.  I need to try the other patch you mentioned, and see
how the that flies.  Anyway, the proposed change should most probably be
routed through upstream QEMU.

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