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