From: Avi Kivity <avi@redhat.com>
To: Jan Kiszka <jan.kiszka@siemens.com>
Cc: Blue Swirl <blauwirbel@gmail.com>,
qemu-devel <qemu-devel@nongnu.org>,
Richard Henderson <rth@twiddle.net>
Subject: Re: [Qemu-devel] [PATCH] memory: simple memory tree printer
Date: Thu, 15 Sep 2011 14:21:35 +0300 [thread overview]
Message-ID: <4E71DFBF.6090106@redhat.com> (raw)
In-Reply-To: <4E71D0F1.9020805@siemens.com>
On 09/15/2011 01:18 PM, Jan Kiszka wrote:
> On 2011-09-15 11:53, Avi Kivity wrote:
> >>> The host pci bridge remaps this as
> >>> 0x1000000105-0x1000000106 in the memory address space space. But
> >>> someone configured a cpu-local region at this address, so the cpu can't
> >>> reach it at all.
> >>
> >> Mapping PIO into MMIO space is special as it needs an intermediate layer
> >> (ie. translation handlers).
> >
> > Translation handlers aren't needed - you can simply add the pci pio
> > region as a subregion of the mmio space.
>
> From the outer perspective. But internally, there is still
> memory_region_iorange_read/write.
These will go away.
> The point is that no use case actually justifies memory_region_set_offset.
>
It's just a compatibility interface. When everything is converted, and
no users remain, we'll remove it.
--
error compiling committee.c: too many arguments to function
next prev parent reply other threads:[~2011-09-15 11:21 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
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 [this message]
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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