From: Finn Thain <fthain@linux-m68k.org>
To: "Dr. David Alan Gilbert" <linux@treblig.org>
Cc: Stan Johnson <userm57@yahoo.com>,
mpe@ellerman.id.au, npiggin@gmail.com,
christophe.leroy@csgroup.eu, sam@ravnborg.org,
benh@kernel.crashing.org, linuxppc-dev@lists.ozlabs.org,
linux-kernel@vger.kernel.org, rdunlap@infradead.org,
Cedar Maxwell <cedarmaxwell@mac.com>
Subject: QEMU limitations, was Re: [PATCH v4] powerpc: Use shared font data
Date: Wed, 5 Nov 2025 15:13:09 +1100 (AEDT) [thread overview]
Message-ID: <492c13c9-666c-9578-6c66-0eb8fefc93dc@linux-m68k.org> (raw)
In-Reply-To: <797f0a13-350f-e26d-f1ef-876419e1c013@linux-m68k.org>
On Mon, 3 Nov 2025, Finn Thain wrote:
> > OK, remember I don't think I've ever tried PPC via MacOS booting, so
> > not familiar with it.
> >
>
> I will try to set up a MacOS guest in QEMU, to see if the hang can be
> reproduced that way.
>
QEMU appears to be incompatible with the Old World ROM from the Beige G3.
'qemu-system-ppc -M g3beige -bios 78F57389.ROM -serial stdio' drops into a
ROM diagnostic menu and won't boot.
I did get 'qemu-system-ppc -M mac99 ...' to boot into MacOS 9, by using
OpenBIOS instead of Apple firmware. Unforunately, BootX is not compatible
with this configuration, so it won't help.
BootX is compatible with beige powermacs, but 'qemu-system-ppc -M g3beige'
with OpenBIOS fails to boot MacOS 9 ("MacOS: unable to find an interrupt
controller node").
OpenBIOS wouldn't boot a MacOS 8.1 CD-ROM either, but for different
reasons: both mac99 and g3beige failed with "No valid state has been set
by load or init-program".
next prev parent reply other threads:[~2025-11-05 4:13 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-08-25 14:27 [PATCH v4] powerpc: Use shared font data linux
2023-09-30 13:15 ` Dr. David Alan Gilbert
2023-10-01 12:08 ` Michael Ellerman
2023-10-02 12:21 ` Dr. David Alan Gilbert
2023-10-15 10:04 ` Michael Ellerman
2025-11-02 5:02 ` Stan Johnson
2025-11-02 11:20 ` Finn Thain
2025-11-02 17:09 ` Dr. David Alan Gilbert
2025-11-02 19:01 ` Stan Johnson
2025-11-03 1:33 ` Finn Thain
2025-11-03 1:48 ` Dr. David Alan Gilbert
2025-11-03 7:26 ` Finn Thain
2025-11-04 17:59 ` Dr. David Alan Gilbert
2025-11-04 19:49 ` Stan Johnson
2025-11-04 21:59 ` Dr. David Alan Gilbert
2025-11-05 4:13 ` Finn Thain [this message]
2025-11-05 14:58 ` QEMU limitations, was " Dr. David Alan Gilbert
2025-11-05 21:44 ` Christophe Leroy
2025-11-05 23:48 ` Finn Thain
2025-11-06 4:11 ` Finn Thain
2025-11-06 9:28 ` Christophe Leroy
2025-11-06 11:50 ` Finn Thain
2025-11-06 12:07 ` Dr. David Alan Gilbert
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=492c13c9-666c-9578-6c66-0eb8fefc93dc@linux-m68k.org \
--to=fthain@linux-m68k.org \
--cc=benh@kernel.crashing.org \
--cc=cedarmaxwell@mac.com \
--cc=christophe.leroy@csgroup.eu \
--cc=linux-kernel@vger.kernel.org \
--cc=linux@treblig.org \
--cc=linuxppc-dev@lists.ozlabs.org \
--cc=mpe@ellerman.id.au \
--cc=npiggin@gmail.com \
--cc=rdunlap@infradead.org \
--cc=sam@ravnborg.org \
--cc=userm57@yahoo.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).