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

[Daniel P. Berrangé]

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
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
...snip....

Regards,
Daniel
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