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Re: [PATCH v7 0/8] Pegasos2 emulation

From: BALATON Zoltan
Subject: Re: [PATCH v7 0/8] Pegasos2 emulation
Date: Tue, 16 Mar 2021 18:25:28 +0100 (CET)

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.


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