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From: BALATON Zoltan <balaton@eik.bme.hu>
To: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Cc: "Peter Maydell" <peter.maydell@linaro.org>,
	qemu-devel@nongnu.org, "Laurent Vivier" <laurent@vivier.eu>,
	qemu-ppc@nongnu.org, "Paolo Bonzini" <pbonzini@redhat.com>,
	"David Gibson" <david@gibson.dropbear.id.au>,
	"Philippe Mathieu-Daudé" <f4bug@amsat.org>
Subject: Re: [PATCH v7 0/8] Pegasos2 emulation
Date: Tue, 16 Mar 2021 18:25:28 +0100 (CET)	[thread overview]
Message-ID: <79ac3f4d-8ba4-1326-976f-8e2fa52230c8@eik.bme.hu> (raw)
In-Reply-To: <d12dfe05-5412-320a-5b80-b5f478d78034@ilande.co.uk>

On Tue, 16 Mar 2021, Mark Cave-Ayland wrote:
> On 16/03/2021 13:06, BALATON Zoltan wrote:
>>> The PATCH 1 doesn't seem to be needed to have a working Pegasos 2 machine, 
>>> does it?
>> 
>> It is needed (as well as all other patches in the series). Patch 1 is 
>> needed for getting serial output which is the only way to communicate with 
>> the Pegasos2 firmware so it's really hard to boot anything without it.
>
> Just having a quick look at patch 1: presumably the issue here is that the 
> Pegasos 2 firmware moves the serial ports to a different address on startup. 
> If you know what that address is, then why not simply change the serial port 
> base address(es) on the SuperIO device from the default?

I had that as first version but other guests may expect the serial at the 
default address or set it up differently and we can emulate the device 
more fully this way that works with all guests which is also more like the 
device works. So putting it at a default address would be a step back. I 
can attempt that if this approach cannot be used but so far nobody said 
so.

Regards,
BALATON Zoltan


  reply	other threads:[~2021-03-16 17:54 UTC|newest]

Thread overview: 32+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-03-10  2:58 [PATCH v7 0/8] Pegasos2 emulation BALATON Zoltan
2021-03-10  2:58 ` [PATCH v7 3/8] vt82c686: Add VT8231_SUPERIO based on VIA_SUPERIO BALATON Zoltan
2021-03-10  2:58 ` [PATCH v7 2/8] vt82c686: QOM-ify superio related functionality BALATON Zoltan
2021-03-11 23:50   ` Philippe Mathieu-Daudé
2021-03-12  0:32     ` BALATON Zoltan
2021-03-10  2:58 ` [PATCH v7 1/8] vt82c686: Implement control of serial port io ranges via config regs BALATON Zoltan
2021-03-11 23:47   ` Philippe Mathieu-Daudé
2021-03-12  1:20     ` David Gibson
2021-03-23 12:54   ` BALATON Zoltan
2021-03-23 21:58     ` Mark Cave-Ayland
2021-03-23 23:13       ` BALATON Zoltan
2021-03-10  2:58 ` [PATCH v7 8/8] hw/ppc: Add emulation of Genesi/bPlan Pegasos II BALATON Zoltan
2021-03-10  2:58 ` [PATCH v7 7/8] hw/pci-host: Add emulation of Marvell MV64361 PPC system controller BALATON Zoltan
2021-03-10  2:58 ` [PATCH v7 5/8] vt82c686: Add emulation of VT8231 south bridge BALATON Zoltan
2021-03-10  2:58 ` [PATCH v7 4/8] vt82c686: Introduce abstract TYPE_VIA_ISA and base vt82c686b_isa on it BALATON Zoltan
2021-03-10  2:58 ` [PATCH v7 6/8] hw/isa/Kconfig: Add missing dependency VIA VT82C686 -> APM BALATON Zoltan
2021-03-13 13:27 ` [PATCH v7 0/8] Pegasos2 emulation BALATON Zoltan
2021-03-15 12:33   ` BALATON Zoltan
2021-03-16  9:01     ` Laurent Vivier
2021-03-16 11:49       ` Philippe Mathieu-Daudé
2021-03-16 12:11         ` Laurent Vivier
2021-03-16 12:24           ` BALATON Zoltan
2021-03-16 12:55             ` Laurent Vivier
2021-03-16 13:06               ` BALATON Zoltan
2021-03-16 16:21                 ` Mark Cave-Ayland
2021-03-16 17:25                   ` BALATON Zoltan [this message]
2021-03-16 20:00                     ` Mark Cave-Ayland
2021-03-16 21:49                       ` BALATON Zoltan
2021-03-16 22:12                         ` BALATON Zoltan
2021-03-16 14:17         ` BALATON Zoltan
2021-03-16 14:48         ` BALATON Zoltan
2021-03-16 12:21       ` BALATON Zoltan

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