From: Avi Kivity <avi@redhat.com>
To: Paul Mackerras <paulus@samba.org>
Cc: "Ingo Molnar" <mingo@elte.hu>,
"Pekka Enberg" <penberg@cs.helsinki.fi>,
"Tom Zanussi" <tzanussi@gmail.com>,
"Frédéric Weisbecker" <fweisbec@gmail.com>,
"Steven Rostedt" <rostedt@goodmis.org>,
"Arnaldo Carvalho de Melo" <acme@redhat.com>,
"Peter Zijlstra" <peterz@infradead.org>,
linux-perf-users@vger.kernel.org,
linux-kernel <linux-kernel@vger.kernel.org>
Subject: Re: disabling group leader perf_event
Date: Wed, 08 Sep 2010 09:19:03 +0300 [thread overview]
Message-ID: <4C872AD7.6000604@redhat.com> (raw)
In-Reply-To: <20100908014409.GA17010@brick.ozlabs.ibm.com>
On 09/08/2010 04:44 AM, Paul Mackerras wrote:
>
> So... I would be interested to see you add the case for the MOV
> instruction. :)
x86 32-bit segmentation.
Unfortunately those are limited to i386. With some care we could use
them on x86_64 (temporarily switch the address space to include the
"bytecode" and its data at the lower 4G, execute a far call to the
bytecode, etc.
It's cumbersome though, and will make context switches to the bytecode
quite slow.
--
I have a truly marvellous patch that fixes the bug which this
signature is too narrow to contain.
next prev parent reply other threads:[~2010-09-08 6:19 UTC|newest]
Thread overview: 53+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-09-06 9:12 disabling group leader perf_event Avi Kivity
2010-09-06 11:24 ` Peter Zijlstra
2010-09-06 11:34 ` Avi Kivity
2010-09-06 11:54 ` Peter Zijlstra
2010-09-06 11:58 ` Avi Kivity
2010-09-06 12:29 ` Peter Zijlstra
2010-09-06 12:40 ` Ingo Molnar
2010-09-06 13:16 ` Steven Rostedt
2010-09-06 16:42 ` Tom Zanussi
2010-09-07 12:53 ` Steven Rostedt
2010-09-07 14:16 ` Tom Zanussi
2010-09-06 12:49 ` Avi Kivity
2010-09-06 12:43 ` Ingo Molnar
2010-09-06 12:45 ` Avi Kivity
2010-09-06 12:59 ` Ingo Molnar
2010-09-06 13:41 ` Pekka Enberg
2010-09-06 13:54 ` Ingo Molnar
2010-09-06 14:57 ` Avi Kivity
2010-09-06 15:30 ` Alan Cox
2010-09-06 15:20 ` Avi Kivity
2010-09-06 15:48 ` Alan Cox
2010-09-06 17:50 ` Avi Kivity
2010-09-06 15:47 ` Ingo Molnar
2010-09-06 17:55 ` Avi Kivity
2010-09-07 3:44 ` Ingo Molnar
2010-09-07 8:33 ` Stefan Hajnoczi
2010-09-07 9:13 ` Avi Kivity
2010-09-07 22:43 ` Ingo Molnar
2010-09-07 15:55 ` Alan Cox
2010-09-08 1:44 ` Paul Mackerras
2010-09-08 6:16 ` Pekka Enberg
2010-09-08 6:44 ` Ingo Molnar
2010-09-08 7:30 ` Peter Zijlstra
2010-09-08 19:30 ` Frank Ch. Eigler
2010-09-09 7:38 ` Ingo Molnar
2010-09-08 6:19 ` Avi Kivity [this message]
2010-09-06 20:31 ` Pekka Enberg
2010-09-06 20:37 ` Pekka Enberg
2010-09-07 4:03 ` Ingo Molnar
2010-09-07 9:30 ` Pekka Enberg
2010-09-07 22:27 ` Ingo Molnar
2010-09-07 10:57 ` KOSAKI Motohiro
2010-09-07 12:14 ` Pekka Enberg
2010-09-07 13:35 ` Steven Rostedt
2010-09-07 13:47 ` Avi Kivity
2010-09-07 16:02 ` Steven Rostedt
2010-09-12 6:46 ` Pavel Machek
2010-09-12 17:54 ` Avi Kivity
2010-09-12 18:48 ` Ingo Molnar
2010-09-12 19:14 ` Pavel Machek
2010-09-12 20:32 ` Ingo Molnar
2010-09-12 21:06 ` Pavel Machek
2010-09-12 22:19 ` Ingo Molnar
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