From: Paolo Bonzini <pbonzini@redhat.com>
To: Peter Maydell <peter.maydell@linaro.org>
Cc: mttcg@greensocs.com, "J. Kiszka" <jan.kiszka@siemens.com>,
"Mark Burton" <mark.burton@greensocs.com>,
"Alexander Graf" <agraf@suse.de>,
"QEMU Developers" <qemu-devel@nongnu.org>,
"KONRAD Frédéric" <fred.konrad@greensocs.com>
Subject: Re: [Qemu-devel] [RFC 09/10] cpu: remove exit_request global.
Date: Mon, 02 Feb 2015 14:14:19 +0100 [thread overview]
Message-ID: <54CF782B.3060800@redhat.com> (raw)
In-Reply-To: <CAFEAcA8TGxUtU7q0cyAGtGvzcXYNLbuhUmTq4XzxNrRBOniy0A@mail.gmail.com>
On 02/02/2015 14:12, Peter Maydell wrote:
> > In particular, you can do it while you are under the big QEMU lock.
>
> ...but this is a signal handler, so we can't guarantee that the
> thread holds the big lock.
>
> ...and if we can iterate over CPU lists in signal handlers,
> the correct approach is probably to use the existing exit_request
> flag rather than adding another one. (Needs investigation to
> check and document semantics of that flag.)
I agree on both counts.
Paolo
next prev parent reply other threads:[~2015-02-02 13:14 UTC|newest]
Thread overview: 62+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-01-16 17:19 [Qemu-devel] [RFC 00/10] MultiThread TCG fred.konrad
2015-01-16 17:19 ` [Qemu-devel] [RFC 01/10] target-arm: protect cpu_exclusive_* fred.konrad
2015-01-27 14:36 ` Alex Bennée
2015-01-29 15:17 ` Peter Maydell
2015-02-02 8:31 ` Frederic Konrad
2015-02-02 8:36 ` Peter Maydell
2015-02-26 18:09 ` Frederic Konrad
2015-02-26 20:36 ` Alexander Graf
2015-02-26 22:56 ` Peter Maydell
2015-02-27 7:54 ` Mark Burton
2015-03-02 12:27 ` Peter Maydell
2015-03-03 15:29 ` Mark Burton
2015-03-03 15:32 ` Paolo Bonzini
2015-03-03 15:33 ` Mark Burton
2015-03-03 15:34 ` Paolo Bonzini
2015-03-03 15:41 ` Mark Burton
2015-03-03 15:47 ` Dr. David Alan Gilbert
2015-03-13 19:38 ` Richard Henderson
2015-03-13 20:04 ` Dr. David Alan Gilbert
2015-01-16 17:19 ` [Qemu-devel] [RFC 02/10] use a different translation block list for each cpu fred.konrad
2015-01-27 14:45 ` Alex Bennée
2015-01-27 15:16 ` Frederic Konrad
2015-01-29 15:24 ` Peter Maydell
2015-01-29 15:33 ` Mark Burton
2015-02-02 8:39 ` Frederic Konrad
2015-02-02 8:49 ` Peter Maydell
2015-02-03 16:17 ` Richard Henderson
2015-02-03 16:33 ` Paolo Bonzini
2015-01-16 17:19 ` [Qemu-devel] [RFC 03/10] replace spinlock by QemuMutex fred.konrad
2015-01-29 15:25 ` Peter Maydell
2015-02-02 8:45 ` Frederic Konrad
2015-01-16 17:19 ` [Qemu-devel] [RFC 04/10] remove unused spinlock fred.konrad
2015-01-16 17:19 ` [Qemu-devel] [RFC 05/10] extract TBContext from TCGContext fred.konrad
2015-01-29 15:44 ` Peter Maydell
2015-02-03 16:30 ` Richard Henderson
2015-01-16 17:19 ` [Qemu-devel] [RFC 06/10] protect TBContext with tb_lock fred.konrad
2015-01-16 17:19 ` [Qemu-devel] [RFC 07/10] tcg: remove tcg_halt_cond global variable fred.konrad
2015-01-16 17:19 ` [Qemu-devel] [RFC 08/10] Drop global lock during TCG code execution fred.konrad
2015-01-16 17:19 ` [Qemu-devel] [RFC 09/10] cpu: remove exit_request global fred.konrad
2015-01-29 15:52 ` Peter Maydell
2015-02-02 10:03 ` Paolo Bonzini
2015-02-02 13:12 ` Peter Maydell
2015-02-02 13:14 ` Paolo Bonzini [this message]
2015-02-03 9:37 ` Frederic Konrad
2015-02-03 10:29 ` Peter Maydell
2015-01-16 17:19 ` [Qemu-devel] [RFC 10/10] tcg: switch on multithread fred.konrad
2015-03-27 10:08 ` [Qemu-devel] [RFC 00/10] MultiThread TCG Alex Bennée
2015-03-27 10:37 ` Frederic Konrad
2015-03-30 6:52 ` Mark Burton
2015-03-30 21:46 ` Peter Maydell
2015-03-31 6:41 ` Mark Burton
2015-04-10 16:03 ` Frederic Konrad
2015-04-22 12:26 ` Frederic Konrad
2015-04-22 13:18 ` Peter Maydell
2015-04-23 7:38 ` Frederic Konrad
2015-04-23 15:44 ` Alex Bennée
2015-04-23 15:46 ` Alex Bennée
2015-04-27 7:37 ` Frederic Konrad
2015-04-27 17:06 ` Emilio G. Cota
2015-04-28 8:17 ` Frederic Konrad
2015-04-28 9:06 ` Paolo Bonzini
2015-04-28 17:49 ` Emilio G. Cota
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=54CF782B.3060800@redhat.com \
--to=pbonzini@redhat.com \
--cc=agraf@suse.de \
--cc=fred.konrad@greensocs.com \
--cc=jan.kiszka@siemens.com \
--cc=mark.burton@greensocs.com \
--cc=mttcg@greensocs.com \
--cc=peter.maydell@linaro.org \
--cc=qemu-devel@nongnu.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.