From: Anthony Liguori <anthony@codemonkey.ws>
To: Jan Kiszka <jan.kiszka@web.de>
Cc: Peter Maydell <peter.maydell@linaro.org>,
Avi Kivity <avi@redhat.com>, Gleb Natapov <gleb@redhat.com>,
qemu-devel <qemu-devel@nongnu.org>
Subject: Re: [Qemu-devel] [RFC] Memory API
Date: Thu, 19 May 2011 08:52:02 -0500 [thread overview]
Message-ID: <4DD52082.1080804@codemonkey.ws> (raw)
In-Reply-To: <4DD4D53F.1090108@web.de>
On 05/19/2011 03:30 AM, Jan Kiszka wrote:
> On 2011-05-19 10:26, Gleb Natapov wrote:
>> On Wed, May 18, 2011 at 09:27:55PM +0200, Jan Kiszka wrote:
>>>> if an I/O is to the APIC page,
>>>> it's handled by the APIC
>>>
>>> That's not that simple. We need to tell apart:
>>> - if a cpu issued the request, and which one => forward to APIC
>> And cpu mode may affect where access is forwarded to. If cpu is in SMM
>> mode access to frame buffer may be forwarded to a memory (depends on
>> chipset configuration).
>
> So we have a second use case for CPU-local I/O regions?
>
> I wonder if only a single CPU can enter SMM or if all have to.
For the i440fx, it's a chipset register (not a per-CPU register).
Maybe it's per-CPU on more modern chipsets... I'm not really sure.
Regards,
Anthony Liguori
next prev parent reply other threads:[~2011-05-19 13:52 UTC|newest]
Thread overview: 187+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-05-18 13:12 [Qemu-devel] [RFC] Memory API Avi Kivity
2011-05-18 14:05 ` Jan Kiszka
2011-05-18 14:36 ` Avi Kivity
2011-05-18 15:11 ` Jan Kiszka
2011-05-18 15:17 ` Peter Maydell
2011-05-18 15:30 ` Jan Kiszka
2011-05-18 19:10 ` Anthony Liguori
2011-05-18 19:27 ` Jan Kiszka
2011-05-18 19:34 ` Anthony Liguori
2011-05-18 20:02 ` Alex Williamson
2011-05-18 20:11 ` Jan Kiszka
2011-05-18 20:13 ` Alex Williamson
2011-05-18 20:07 ` Jan Kiszka
2011-05-18 20:41 ` Anthony Liguori
2011-05-19 8:26 ` Gleb Natapov
2011-05-19 8:30 ` Jan Kiszka
2011-05-19 8:44 ` Avi Kivity
2011-05-19 13:59 ` Anthony Liguori
2011-05-19 13:52 ` Anthony Liguori [this message]
2011-05-19 13:56 ` Avi Kivity
2011-05-19 13:57 ` Jan Kiszka
2011-05-19 14:04 ` Anthony Liguori
2011-05-19 14:06 ` Jan Kiszka
2011-05-19 14:11 ` Avi Kivity
2011-05-19 18:18 ` Anthony Liguori
2011-05-19 18:50 ` Jan Kiszka
2011-05-19 19:02 ` Anthony Liguori
2011-05-19 19:10 ` Jan Kiszka
2011-05-20 9:15 ` Avi Kivity
2011-05-20 17:30 ` Blue Swirl
2011-05-22 7:23 ` Avi Kivity
2011-05-19 6:31 ` Jan Kiszka
2011-05-19 13:23 ` Anthony Liguori
2011-05-19 13:25 ` Jan Kiszka
2011-05-19 13:26 ` Avi Kivity
2011-05-19 13:35 ` Anthony Liguori
2011-05-19 13:36 ` Jan Kiszka
2011-05-19 13:43 ` Avi Kivity
2011-05-19 13:39 ` Avi Kivity
2011-05-19 8:09 ` Avi Kivity
2011-05-18 15:23 ` Avi Kivity
2011-05-18 15:36 ` Jan Kiszka
2011-05-18 15:42 ` Avi Kivity
2011-05-18 16:00 ` Jan Kiszka
2011-05-18 16:14 ` Avi Kivity
2011-05-18 16:39 ` Jan Kiszka
2011-05-18 16:47 ` Avi Kivity
2011-05-18 17:07 ` Jan Kiszka
2011-05-18 17:15 ` Avi Kivity
2011-05-18 17:40 ` Jan Kiszka
2011-05-18 20:13 ` Richard Henderson
2011-05-19 8:04 ` Avi Kivity
2011-05-19 9:08 ` Gleb Natapov
2011-05-19 9:10 ` Avi Kivity
2011-05-19 9:14 ` Gleb Natapov
2011-05-19 11:44 ` Avi Kivity
2011-05-19 11:54 ` Gleb Natapov
2011-05-19 11:57 ` Jan Kiszka
2011-05-19 11:58 ` Gleb Natapov
2011-05-19 12:02 ` Avi Kivity
2011-05-19 12:21 ` Gleb Natapov
2011-05-19 12:02 ` Jan Kiszka
2011-05-19 11:57 ` Avi Kivity
2011-05-19 12:20 ` Jan Kiszka
2011-05-19 12:50 ` Avi Kivity
2011-05-19 12:58 ` Jan Kiszka
2011-05-19 13:00 ` Avi Kivity
2011-05-19 13:03 ` Jan Kiszka
2011-05-19 13:07 ` Avi Kivity
2011-05-19 13:26 ` Jan Kiszka
2011-05-19 13:30 ` Avi Kivity
2011-05-19 13:43 ` Jan Kiszka
2011-05-19 13:47 ` Avi Kivity
2011-05-19 13:49 ` Anthony Liguori
2011-05-19 13:53 ` Avi Kivity
2011-05-19 14:15 ` Anthony Liguori
2011-05-19 14:20 ` Jan Kiszka
2011-05-19 14:25 ` Anthony Liguori
2011-05-19 14:28 ` Jan Kiszka
2011-05-19 14:31 ` Avi Kivity
2011-05-19 14:37 ` Anthony Liguori
2011-05-19 14:40 ` Avi Kivity
2011-05-19 16:17 ` Gleb Natapov
2011-05-19 16:25 ` Jan Kiszka
2011-05-19 16:28 ` Gleb Natapov
2011-05-19 16:30 ` Jan Kiszka
2011-05-19 16:36 ` Anthony Liguori
2011-05-19 16:49 ` Jan Kiszka
2011-05-19 17:12 ` Gleb Natapov
2011-05-19 18:11 ` Jan Kiszka
2011-05-20 8:58 ` Avi Kivity
2011-05-20 8:56 ` Avi Kivity
2011-05-20 14:51 ` Anthony Liguori
2011-05-20 16:43 ` Olivier Galibert
2011-05-20 17:32 ` Anthony Liguori
2011-05-22 7:36 ` Avi Kivity
2011-05-19 16:43 ` Gleb Natapov
2011-05-19 16:51 ` Jan Kiszka
2011-05-19 16:27 ` Gleb Natapov
2011-05-20 8:59 ` Avi Kivity
2011-05-20 11:57 ` Gleb Natapov
2011-05-22 7:37 ` Avi Kivity
2011-05-22 8:06 ` Gleb Natapov
2011-05-22 8:09 ` Avi Kivity
2011-05-22 8:59 ` Gleb Natapov
2011-05-22 12:26 ` Avi Kivity
2011-05-19 16:32 ` Anthony Liguori
2011-05-19 16:35 ` Jan Kiszka
2011-05-19 16:38 ` Anthony Liguori
2011-05-19 16:50 ` Jan Kiszka
2011-05-20 9:03 ` Avi Kivity
2011-05-20 9:01 ` Avi Kivity
2011-05-20 15:33 ` Anthony Liguori
2011-05-20 15:59 ` Jan Kiszka
2011-05-22 7:38 ` Avi Kivity
2011-05-22 15:42 ` Anthony Liguori
2011-05-19 14:21 ` Avi Kivity
2011-05-19 13:44 ` Anthony Liguori
2011-05-19 13:47 ` Jan Kiszka
2011-05-19 13:50 ` Anthony Liguori
2011-05-19 13:55 ` Jan Kiszka
2011-05-19 13:55 ` Avi Kivity
2011-05-19 18:06 ` Anthony Liguori
2011-05-19 18:21 ` Jan Kiszka
2011-05-19 13:49 ` Avi Kivity
2011-05-19 9:24 ` Edgar E. Iglesias
2011-05-19 14:49 ` Peter Maydell
2011-05-18 16:33 ` Anthony Liguori
2011-05-18 16:41 ` Avi Kivity
2011-05-18 17:04 ` Anthony Liguori
2011-05-18 17:13 ` Avi Kivity
2011-05-18 16:42 ` Jan Kiszka
2011-05-18 17:05 ` Avi Kivity
2011-05-18 15:14 ` Anthony Liguori
2011-05-18 15:26 ` Avi Kivity
2011-05-18 16:21 ` Avi Kivity
2011-05-18 16:42 ` Jan Kiszka
2011-05-18 16:49 ` Avi Kivity
2011-05-18 17:11 ` Anthony Liguori
2011-05-18 17:38 ` Jan Kiszka
2011-05-18 15:08 ` Anthony Liguori
2011-05-18 15:37 ` Avi Kivity
2011-05-18 19:36 ` Jan Kiszka
2011-05-18 15:47 ` Stefan Weil
2011-05-18 16:06 ` Avi Kivity
2011-05-18 16:51 ` Richard Henderson
2011-05-18 16:53 ` Avi Kivity
2011-05-18 17:03 ` Richard Henderson
2011-05-18 15:58 ` Avi Kivity
2011-05-18 16:26 ` Richard Henderson
2011-05-18 16:37 ` Avi Kivity
2011-05-18 17:17 ` Avi Kivity
2011-05-18 19:40 ` Jan Kiszka
2011-05-19 8:06 ` Avi Kivity
2011-05-19 8:08 ` Jan Kiszka
2011-05-19 8:13 ` Avi Kivity
2011-05-19 8:25 ` Jan Kiszka
2011-05-19 8:43 ` Avi Kivity
2011-05-19 9:24 ` Jan Kiszka
2011-05-19 11:58 ` Avi Kivity
2011-05-19 13:36 ` Anthony Liguori
2011-05-19 13:37 ` Jan Kiszka
2011-05-19 13:41 ` Avi Kivity
2011-05-19 17:39 ` Gleb Natapov
2011-05-19 18:03 ` Anthony Liguori
2011-05-19 18:28 ` Gleb Natapov
2011-05-19 18:33 ` Anthony Liguori
2011-05-19 18:11 ` Jan Kiszka
2011-05-19 18:22 ` Gleb Natapov
2011-05-19 18:27 ` Jan Kiszka
2011-05-19 18:40 ` Gleb Natapov
2011-05-19 18:45 ` Jan Kiszka
2011-05-19 18:50 ` Gleb Natapov
2011-05-19 18:55 ` Jan Kiszka
2011-05-19 19:02 ` Jan Kiszka
2011-05-20 7:23 ` Gleb Natapov
2011-05-20 7:40 ` Jan Kiszka
2011-05-20 11:25 ` Gleb Natapov
2011-05-22 7:50 ` Avi Kivity
2011-05-22 8:41 ` Gleb Natapov
2011-05-22 10:53 ` Jan Kiszka
2011-05-22 11:29 ` Avi Kivity
2011-05-23 8:45 ` Gleb Natapov
2011-05-23 22:29 ` Jamie Lokier
2011-05-20 9:10 ` Avi Kivity
2011-05-20 12:08 ` Gleb Natapov
2011-05-22 7:56 ` Avi Kivity
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