[PATCH 05/33] qemu_domain.c: define ISA as default PowerNV serial

[Peter Krempa]

On Fri, Jan 21, 2022 at 14:29:05 +0000, Daniel P. Berrangé wrote:
> On Fri, Jan 21, 2022 at 03:01:32PM +0100, Peter Krempa wrote:
> > On Thu, Jan 20, 2022 at 11:22:15 -0300, Daniel Henrique Barboza wrote:
> > > 
> > > 
> > > On 1/20/22 10:58, Peter Krempa wrote:
> > > > On Thu, Jan 20, 2022 at 10:52:08 -0300, Daniel Henrique Barboza wrote:
> > > > > The PowerNV machines uses ISA as the default serial type.
> > > > 
> > > > ISA? Are you sure?
> > > > 
> > > > ISA is very legacy x86 bus.
> > > 
> > > Yes, these machines uses ISA buses.
> > 
> > Okay, I have very hard time believing it, but I'm not an expert on Power
> > machines.
> 
> You can see it from the qtree:
> 
> $ qemu-system-ppc64  -monitor stdio -M powernv

Ah, I didn't try as minimal of a commandline, and the definitions added
by this series don't seem to work.

> QEMU 6.1.0 monitor - type 'help' for more information
> (qemu) info qtree
> bus: main-system-bus
>   type System
>   dev: isabus-bridge, id ""
>     bus: isa.0
>       type ISA
>       dev: isa-ipmi-bt, id ""
>         ioport = 228 (0xe4)
>         irq = 10 (0xa)
>         isa irq 10
>       dev: mc146818rtc, id ""
>         gpio-out "" 1
>         base_year = 0 (0x0)
>         lost_tick_policy = "discard"
>         isa irq 8
>       dev: isa-serial, id ""
>         index = 0 (0x0)
>         iobase = 1016 (0x3f8)
>         irq = 4 (0x4)
>         isa irq 4

Bizzare to see ISA used :D