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From: Jan Kiszka <jan.kiszka@siemens.com>
To: Richard Henderson <rth@twiddle.net>
Cc: Blue Swirl <blauwirbel@gmail.com>,
	qemu-devel <qemu-devel@nongnu.org>, Avi Kivity <avi@redhat.com>
Subject: Re: [Qemu-devel] [PATCH] memory: simple memory tree printer
Date: Mon, 12 Sep 2011 11:01:21 +0200	[thread overview]
Message-ID: <4E6DCA61.4070009@siemens.com> (raw)
In-Reply-To: <4E6DAA09.1050701@twiddle.net>

On 2011-09-12 08:43, Richard Henderson wrote:
> On 09/11/2011 09:31 PM, Blue Swirl wrote:
>> Field 'offset' is always zero, maybe that is not interesting. Will it
>> become one day?
> 
> It's not always zero, but only used by certain devices.

I do not see any users, neither upstream nor in Avi's tree.

To my (semi-)understanding, offset should correlate to region_offset of
cpu_register_physical_memory_offset: legacy device models require this
to be 0 as they expect an absolute memory address passed to their
handler, in contrast to a normal one that is relative to the regions
base. But I do not see how the memory region offset actually helps here.

Jan

-- 
Siemens AG, Corporate Technology, CT T DE IT 1
Corporate Competence Center Embedded Linux

  reply	other threads:[~2011-09-12  9:01 UTC|newest]

Thread overview: 26+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-09-11 20:31 [Qemu-devel] [PATCH] memory: simple memory tree printer Blue Swirl
2011-09-12  6:43 ` Richard Henderson
2011-09-12  9:01   ` Jan Kiszka [this message]
2011-09-12  9:11     ` Avi Kivity
2011-09-12  9:19       ` Jan Kiszka
2011-09-14 15:10         ` Richard Henderson
2011-09-14 15:23           ` Avi Kivity
2011-09-14 15:27             ` Richard Henderson
2011-09-14 15:29               ` Avi Kivity
2011-09-14 15:36                 ` Richard Henderson
2011-09-14 15:46                   ` Avi Kivity
2011-09-14 17:58           ` Jan Kiszka
2011-09-14 18:10             ` Jan Kiszka
2011-09-14 19:24               ` Avi Kivity
2011-09-15  9:30                 ` Jan Kiszka
2011-09-15  9:53                   ` Avi Kivity
2011-09-15 10:18                     ` Jan Kiszka
2011-09-15 11:21                       ` Avi Kivity
2011-09-14 18:26             ` Richard Henderson
2011-09-12  7:00 ` Peter Maydell
2011-09-12  8:46 ` Avi Kivity
2011-09-12  8:53   ` Jan Kiszka
2011-09-12  9:12     ` Avi Kivity
2011-09-12 10:37 ` Gerd Hoffmann
2011-09-12 10:53   ` Avi Kivity
2011-09-12 20:07     ` Blue Swirl

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