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Re: [Qemu-devel] [PATCH] hw/isa/smc37c669: Change the parallel I/O base
From: |
Richard Henderson |
Subject: |
Re: [Qemu-devel] [PATCH] hw/isa/smc37c669: Change the parallel I/O base to 378H |
Date: |
Thu, 14 Jun 2018 17:44:09 -1000 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.8.0 |
On 06/14/2018 01:39 PM, Philippe Mathieu-Daudé wrote:
> On the Alpha DP264 machine, the Cirrus VGA is I/O mapped
> in the 3C0H-3CFH range, thus I/O base used by the parallel
> device clashes, and since a4cb773928e the VGA is not
> working:
>
> (qemu) info mtree
> address-space: memory
> 0000000000000000-ffffffffffffffff (prio 0, i/o): system
> 00000801fc000000-00000801fdffffff (prio 0, i/o): pci0-io
> ...
> 00000801fc0003b4-00000801fc0003b5 (prio 0, i/o): vga
> 00000801fc0003ba-00000801fc0003ba (prio 0, i/o): vga
> 00000801fc0003bc-00000801fc0003c3 (prio 0, i/o): parallel
> ^^^ ^^^^^^^^
> 00000801fc0003c0-00000801fc0003cf (prio 0, i/o): vga
> ^^^
> 00000801fc0003d4-00000801fc0003d5 (prio 0, i/o): vga
> 00000801fc0003da-00000801fc0003da (prio 0, i/o): vga
> ...
>
> As there is no particular reason to use this base address
> (introduced in 7bea0dd434e), change to 378H which is the
> default on PC machines.
>
> Reported-by: Emilio G. Cota <address@hidden>
> Suggested-by: Paolo Bonzini <address@hidden>
> Signed-off-by: Philippe Mathieu-Daudé <address@hidden>
> ---
> RFC: http://lists.nongnu.org/archive/html/qemu-devel/2018-06/msg04011.html
Reviewed-by: Richard Henderson <address@hidden>
Tested-by: Richard Henderson <address@hidden>
r~