From: Fam Zheng <famz@redhat.com>
To: Stephen Bates <sbates@raithlin.com>
Cc: qemu-devel@nongnu.org
Subject: Re: [Qemu-devel] (no subject)
Date: Tue, 13 Sep 2016 10:28:27 +0800 [thread overview]
Message-ID: <20160913022827.GD15800@lemon> (raw)
In-Reply-To: <ed3dacd56403003413d981141834905a.squirrel@webmail.raithlin.com>
On Mon, 09/12 16:23, Stephen Bates wrote:
> Hi
Hi Stephen,
>
> I sent this to qemu-discuss with no success so resending to qemu-devel.
>
> I am doing some very low level OS design work and wanted to be able to
> alter some values in the physical memory of my QEMU guest. I can see quite
> a few ways to print/dump both physical and virtual addresses but nothing
> that can alter arbitrary physical/virtual addresses?
>
> Does such a feature exist in Qemu and if it does are there pointers to
> documentation for it?
Have you tried the builtin gdbstub in QEMU? You can add "-s" to the QEMU
command line and then connect to it from gdb with "target remote :1234". There
you can inspect or change memory more easily.
Fam
>
> I do see that we can use file backing for very large memory regions via
> the memory-backing-file option but I am not really trying to alter massive
> regions of memory in this case.
>
> Cheers
>
> Stephen Bates
>
next prev parent reply other threads:[~2016-09-13 2:28 UTC|newest]
Thread overview: 128+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-09-12 21:23 [Qemu-devel] (no subject) Stephen Bates
2016-09-13 2:28 ` Fam Zheng [this message]
2016-09-19 15:54 ` Stephen Bates
-- strict thread matches above, loose matches on Subject: below --
2019-02-25 13:18 Yang Weijiang
2019-01-02 2:02 Yaowei Bai
2018-12-13 10:10 Илья Резников
2018-11-28 1:08 John Arbuckle
2018-11-28 19:39 ` Peter Maydell
2018-11-29 0:21 ` Programmingkid
2018-11-29 2:11 ` berkus infinitus
2018-11-29 10:18 ` Peter Maydell
2018-07-22 9:13 Liujinsong (Paul)
2018-06-20 7:32 [Qemu-devel] [PATCH v5 0/7] monitor: enable OOB by default Peter Xu
2018-06-26 17:21 ` [Qemu-devel] (no subject) Markus Armbruster
2017-10-12 23:54 Anatol Pomozov
2017-08-07 16:34 Eduardo Otubo
2017-08-07 13:31 vaibhav shukla
2017-05-17 22:42 John Bradley
2017-05-18 5:29 ` no-reply
2017-05-18 5:31 ` no-reply
[not found] <CAMj-D2DO_CfvD77izsGfggoKP45HSC9aD6auUPAYC9Yeq_aX7w@mail.gmail.com>
2017-05-04 16:44 ` gengdongjiu
2017-03-21 14:03 [Qemu-devel] [PATCH] qemu-ga: add guest-get-osinfo command Vinzenz Feenstra
2017-03-16 14:50 ` [Qemu-devel] (no subject) Vinzenz 'evilissimo' Feenstra
2017-03-23 13:44 ` Eric Blake
2017-02-24 13:19 Eric Bischoff
2017-02-17 15:42 Pranith Kumar
2017-01-02 12:03 morgenlette madeBy
2017-01-03 16:36 ` Stefan Hajnoczi
2016-11-16 19:41 Christopher Oliver
2016-11-17 9:15 ` Thomas Huth
2016-10-30 15:30 Pradeep Jagadeesh
2016-10-20 6:59 Nicholas Piggin
2016-10-12 21:49 Neeraj Sharma
2016-10-02 6:47 Shreya Shrivastava
2016-07-31 15:07 Kumud Bhat
2016-03-21 8:44 Yunqiang Gao
2016-03-21 18:00 ` John Snow
2016-03-21 21:09 ` Peter Maydell
2016-03-22 21:45 ` John Snow
2016-01-15 10:06 Liang Li
2015-11-17 13:08 Christoph Hellwig
2015-11-17 17:29 ` Paolo Bonzini
2015-07-14 7:33 Pankaj Gupta
2015-07-02 16:18 Denis V. Lunev
2015-06-30 4:49 Scott Feldman
2015-06-30 7:18 ` Fam Zheng
2015-06-30 14:22 ` Scott Feldman
2015-05-03 14:10 yhindin
2015-05-03 14:10 yhindin
2015-05-03 14:10 yhindin
2015-05-03 14:07 yhindin
2015-05-03 14:07 yhindin
2015-02-22 1:00 Sunil Kumar
2014-12-06 10:54 Jun Li
2014-11-10 3:14 xubin yan
2014-09-17 16:20 Priyanka Ranjan
2014-06-12 14:45 Puneet Bakshi
2014-02-04 14:18 Валентин Сайков
2013-11-21 19:33 [Qemu-devel] [PATCH for-1.7 0/5] acpi unit-test: added tests Marcel Apfelbaum
2013-11-21 19:33 ` [Qemu-devel] [PATCH for-1.7 2/5] acpi unit-test: adjust the test data structure for better handling Marcel Apfelbaum
2013-12-10 16:42 ` [Qemu-devel] (no subject) Michael S. Tsirkin
2013-08-18 18:19 Liu, Jinsong
2013-05-06 13:47 [Qemu-devel] [PATCH] Add 'maxqdepth' as an option to tty character devices Paolo Bonzini
2013-05-07 16:36 ` [Qemu-devel] (no subject) John Baboval
2013-04-02 16:02 Elizabeth Brown
2013-04-05 7:18 ` Stefan Hajnoczi
2012-11-19 20:39 Stefan Priebe
2012-07-23 10:59 Paulo Arcinas
2012-07-20 3:39 Guan Xuetao
2012-04-01 16:19 César
2012-03-08 3:26 suyi wang
[not found] <[0/4] RESEND: Outstanding bugfixes and cleanups>
2012-03-08 0:41 ` David Gibson
2012-02-29 12:43 Dmitry Fleytman
2011-12-29 21:17 Fred Oliveira
2011-12-13 2:50 Erik Lotspeich
2011-12-13 8:06 ` Stefan Hajnoczi
2011-12-13 12:55 ` Erik Lotspeich
2011-12-13 14:57 ` Stefan Hajnoczi
2011-12-13 15:22 ` Erik Lotspeich
2011-12-13 15:56 ` Paolo Bonzini
2011-12-08 12:06 wong
2011-11-11 21:46 Ronnie Sahlberg
2011-10-24 21:03 Benoît Canet
2011-10-24 10:25 王永博
2011-09-29 16:55 Ottavio
2011-09-14 14:38 王永博
2011-08-03 14:50 Michael Tokarev
2011-06-12 2:47 Ronnie Sahlberg
2011-05-31 4:56 coolman coolx
2011-03-08 9:59 Stefan Hajnoczi
2011-02-17 10:45 maheen butt
2011-01-04 15:15 Aurelien Jarno
2011-01-04 16:06 ` Peter Maydell
2011-01-04 16:12 ` Aurelien Jarno
2010-12-13 8:05 Ronnie Sahlberg
2010-12-06 0:39 Joao Francisco Medeiros Neto
2010-12-05 19:29 Joao Francisco Medeiros Neto
2010-12-02 18:21 Joao Francisco Medeiros Neto
2010-11-28 14:28 Joao Francisco Medeiros Neto
2010-11-27 16:37 Joao Francisco Medeiros Neto
2010-11-12 9:43 Stefan Hajnoczi
2010-11-11 1:30 Michael Roth
2010-10-31 11:17 Zamzit
2010-10-22 14:56 Stefan Hajnoczi
2010-05-18 7:31 Corentin Chary
2010-02-10 18:15 Stephen Isard
2009-10-31 1:07 Jason McMullan
2009-07-01 21:26 G 3
2009-03-17 20:37 Uri Lublin
2009-01-29 19:54 Uri Lublin
2009-01-30 2:43 ` Paul Brook
2009-02-01 15:20 ` Uri Lublin
2008-12-13 21:18 froydnj
2008-12-13 19:31 froydnj
2008-12-11 22:12 Hollis Blanchard
2008-12-11 22:43 ` Aurelien Jarno
2008-11-14 15:38 sniper
2008-08-21 14:27 Paweł Tulik
2007-04-10 13:34 Stuart Anderson
2007-03-03 23:09 Ben Taylor
2007-03-02 16:10 jeremy fenelon
2006-11-21 16:08 Torbjörn Andersson
2006-10-07 5:51 av1474
2006-10-10 20:50 ` Blue Swirl
2005-12-20 19:47 Hoppers U. Moppet
2005-11-08 15:57 Shahar Livne
2005-11-03 13:16 Qemtz
2005-04-27 14:08 blackcrack
2005-04-27 16:04 ` Johannes Schindelin
2005-04-27 16:38 ` Alex Beregszaszi
2005-01-18 4:44 Cliff
2004-08-08 1:42 anthony hill
2004-02-19 17:16 Adrian C
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