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From: Paolo Bonzini <pbonzini@redhat.com>
To: Artyom Tarasenko <atar4qemu@gmail.com>
Cc: qemu-ppc@nongnu.org,
	"Mark Cave-Ayland" <mark.cave-ayland@ilande.co.uk>,
	qemu-devel <qemu-devel@nongnu.org>,
	"Andreas Färber" <afaerber@suse.de>,
	"Alexander Graf" <agraf@suse.de>
Subject: Re: [Qemu-devel] [PATCH 2/2] m48t59: add mem_base value to m48t59_init_isa()
Date: Mon, 19 Jan 2015 13:59:38 +0100	[thread overview]
Message-ID: <54BCFFBA.1070302@redhat.com> (raw)
In-Reply-To: <CACXAS8Di2q=YMU+1MviCxM9SPYr=Fii=20LCqJUOgD_=p7=Tfw@mail.gmail.com>



On 19/01/2015 13:57, Artyom Tarasenko wrote:
>> > Is it really ISA if it's MMIO?  In other words, why can't this be a
>> > sysbus device?
> On physical machines it's EBus, which is pretty much like 8-bit ISA.
> So, I think modelling it as ISA is closer to to the reality.
> But out of curiosity, would it be possible to have a sysbus device
> somewhere in a middle of PCI space? Do sysbus devices have higher
> priority if the address spaces overlap? Or do you mean that the PCI
> controller needs to be modified to have a hole for a sysbus device?

What does the memory map look like (simplifying to "where can BARs be"
and "where is the RTC")?

Paolo

  reply	other threads:[~2015-01-19 12:59 UTC|newest]

Thread overview: 30+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-01-19 11:35 [Qemu-devel] [PATCH 0/2] m48t59: add year offset and MMIO ISA mapping Mark Cave-Ayland
2015-01-19 11:35 ` [Qemu-devel] [PATCH 1/2] m48t59: introduce new year_offset qdev property Mark Cave-Ayland
2015-01-19 12:06   ` Artyom Tarasenko
2015-01-19 12:20     ` Mark Cave-Ayland
2015-01-19 11:35 ` [Qemu-devel] [PATCH 2/2] m48t59: add mem_base value to m48t59_init_isa() Mark Cave-Ayland
2015-01-19 12:45   ` Paolo Bonzini
2015-01-19 12:57     ` Artyom Tarasenko
2015-01-19 12:59       ` Paolo Bonzini [this message]
2015-01-19 13:12         ` Artyom Tarasenko
2015-01-19 15:01       ` Andreas Färber
2015-01-19 15:22         ` Artyom Tarasenko
2015-01-19 15:31           ` Paolo Bonzini
2015-01-19 15:38             ` Andreas Färber
2015-01-19 16:01               ` Paolo Bonzini
2015-01-19 16:17             ` Artyom Tarasenko
2015-01-19 16:34               ` Paolo Bonzini
2015-01-19 18:17                 ` Maciej W. Rozycki
2015-01-19 16:57               ` Mark Cave-Ayland
2015-01-19 16:55             ` Mark Cave-Ayland
2015-01-19 20:03           ` Andreas Färber
2015-01-20  9:54             ` Artyom Tarasenko
2015-01-19 16:42         ` Mark Cave-Ayland
2015-01-19 21:16         ` Hervé Poussineau
2015-01-19 15:04       ` Peter Maydell
2015-01-19 16:48         ` Mark Cave-Ayland
2015-01-19 16:50           ` Peter Maydell
2015-01-19 12:09 ` [Qemu-devel] [PATCH 0/2] m48t59: add year offset and MMIO ISA mapping Artyom Tarasenko
2015-01-19 21:59 ` Hervé Poussineau
2015-01-20 10:16   ` Artyom Tarasenko
2015-01-20 14:19   ` Mark Cave-Ayland

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