From: "Pavel Dovgalyuk" <dovgaluk@ispras.ru>
To: "'Sergey Fedorov'" <serge.fdrv@gmail.com>,
"'KONRAD Frederic'" <fred.konrad@greensocs.com>,
"'Peter Maydell'" <peter.maydell@linaro.org>,
"'Alex Bennée'" <alex.bennee@linaro.org>
Cc: "'MTTCG Devel'" <mttcg@listserver.greensocs.com>,
"'Alvise Rigo'" <a.rigo@virtualopensystems.com>,
"'Emilio G. Cota'" <cota@braap.org>,
"'QEMU Developers'" <qemu-devel@nongnu.org>,
"'Mark Burton'" <mark.burton@greensocs.com>,
"'Paolo Bonzini'" <pbonzini@redhat.com>,
"'J. Kiszka'" <jan.kiszka@siemens.com>,
"'Richard Henderson'" <rth@twiddle.net>,
"'Claudio Fontana'" <claudio.fontana@huawei.com>,
"'Peter Crosthwaite'" <crosthwaite.peter@gmail.com>,
"'Andreas Färber'" <afaerber@suse.de>
Subject: Re: [Qemu-devel] [RFC v2 08/11] tcg: add options for enabling MTTCG
Date: Tue, 12 Apr 2016 16:03:45 +0300 [thread overview]
Message-ID: <001501d194bb$c01b8800$40529800$@ru> (raw)
In-Reply-To: <570CF175.8090807@gmail.com>
> From: mttcg-request@listserver.greensocs.com [mailto:mttcg-request@listserver.greensocs.com]
> On 12/04/16 15:50, KONRAD Frederic wrote:
> >> Yes, but users may like to have an option to disable MTTCG for some
> >> reason. I'm also concerned about icount mode: not sure how to account
> >> virtual time when all vCPUs run in parallel.
> >
> > I'm thinking the same, we don't have a solution for icount yet.
> > The reverse execution support is probably badly broken as well.
>
> Reverse execution doesn't even seem to support more than a single core.
> As of icount, it looks like to be incompatible with MTTCG.
It doesn't, because there is no multicore support for tcg yet.
I think, that we have to find some solution for icount (even if it will be slow).
Pavel Dovgalyuk
next prev parent reply other threads:[~2016-04-12 13:03 UTC|newest]
Thread overview: 66+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-04-05 15:32 [Qemu-devel] [RFC v2 00/11] Base enabling patches for MTTCG Alex Bennée
2016-04-05 15:32 ` [Qemu-devel] [RFC v2 01/11] tcg: move tb_invalidated_flag to CPUState Alex Bennée
2016-04-05 15:44 ` Paolo Bonzini
2016-04-06 10:11 ` Sergey Fedorov
2016-04-05 15:32 ` [Qemu-devel] [RFC v2 02/11] cpus: make all_vcpus_paused() return bool Alex Bennée
2016-04-11 12:48 ` Sergey Fedorov
2016-04-05 15:32 ` [Qemu-devel] [RFC v2 03/11] docs: new design document multi-thread-tcg.txt (DRAFTING) Alex Bennée
2016-04-11 20:00 ` Sergey Fedorov
2016-05-25 15:48 ` Sergey Fedorov
2016-05-25 16:01 ` Alex Bennée
2016-05-25 18:03 ` Paolo Bonzini
2016-05-25 18:13 ` Sergey Fedorov
2016-05-06 11:25 ` Sergey Fedorov
2016-04-05 15:32 ` [Qemu-devel] [RFC v2 04/11] tcg: comment on which functions have to be called with tb_lock held Alex Bennée
2016-05-05 14:19 ` Sergey Fedorov
2016-05-05 15:03 ` Alex Bennée
2016-05-05 15:25 ` Sergey Fedorov
2016-05-05 15:42 ` Sergey Fedorov
2016-05-06 18:22 ` Sergey Fedorov
2016-05-11 12:58 ` Paolo Bonzini
2016-05-11 13:36 ` Sergey Fedorov
2016-05-11 13:46 ` Paolo Bonzini
2016-05-12 19:32 ` Sergey Fedorov
2016-05-13 9:25 ` Paolo Bonzini
2016-04-05 15:32 ` [Qemu-devel] [RFC v2 05/11] tcg: protect TBContext with tb_lock Alex Bennée
2016-05-11 12:45 ` Sergey Fedorov
2016-05-11 12:52 ` Paolo Bonzini
2016-05-11 13:42 ` Sergey Fedorov
2016-06-01 10:30 ` Alex Bennée
2016-06-02 14:37 ` Sergey Fedorov
2016-04-05 15:32 ` [Qemu-devel] [RFC v2 06/11] target-arm/psci.c: wake up sleeping CPUs Alex Bennée
2016-04-05 15:32 ` [Qemu-devel] [RFC v2 07/11] tcg: cpus rm tcg_exec_all() Alex Bennée
2016-05-26 11:03 ` Sergey Fedorov
2016-05-26 13:10 ` Alex Bennée
2016-04-05 15:32 ` [Qemu-devel] [RFC v2 08/11] tcg: add options for enabling MTTCG Alex Bennée
2016-04-11 20:50 ` Sergey Fedorov
2016-04-12 11:48 ` Alex Bennée
2016-04-12 11:59 ` Peter Maydell
2016-04-12 12:42 ` Sergey Fedorov
2016-04-12 12:50 ` KONRAD Frederic
2016-04-12 13:00 ` Sergey Fedorov
2016-04-12 13:03 ` Pavel Dovgalyuk [this message]
2016-04-12 13:19 ` Sergey Fedorov
2016-04-12 14:23 ` Alex Bennée
2016-05-09 10:47 ` Paolo Bonzini
2016-04-12 12:48 ` Sergey Fedorov
2016-05-09 10:45 ` Paolo Bonzini
2016-05-09 11:50 ` Alex Bennée
2016-04-12 13:23 ` Sergey Fedorov
2016-04-12 14:28 ` Alex Bennée
2016-04-05 15:32 ` [Qemu-devel] [RFC v2 09/11] tcg: add kick timer for single-threaded vCPU emulation Alex Bennée
2016-04-11 21:39 ` Sergey Fedorov
2016-06-02 16:00 ` Alex Bennée
2016-06-02 16:05 ` Sergey Fedorov
2016-04-05 15:32 ` [Qemu-devel] [RFC v2 10/11] tcg: drop global lock during TCG code execution Alex Bennée
2016-05-24 21:28 ` Sergey Fedorov
2016-05-25 10:33 ` Paolo Bonzini
2016-05-25 11:07 ` Alex Bennée
2016-05-25 12:46 ` Paolo Bonzini
2016-04-05 15:32 ` [Qemu-devel] [RFC v2 11/11] tcg: enable thread-per-vCPU Alex Bennée
2016-05-27 13:57 ` Sergey Fedorov
2016-05-27 14:55 ` Paolo Bonzini
2016-05-27 15:07 ` Sergey Fedorov
2016-05-27 15:25 ` Paolo Bonzini
2016-05-27 18:54 ` Sergey Fedorov
2016-06-02 16:36 ` Alex Bennée
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