From: "Alex Bennée" <alex.bennee@linaro.org>
To: Paolo Bonzini <pbonzini@redhat.com>
Cc: Sergey Fedorov <serge.fdrv@gmail.com>,
Sergey Fedorov <sergey.fedorov@linaro.org>,
qemu-devel@nongnu.org, mttcg@greensocs.com,
fred.konrad@greensocs.com, a.rigo@virtualopensystems.com,
cota@braap.org, bobby.prani@gmail.com, rth@twiddle.net,
patches@linaro.org, mark.burton@greensocs.com,
jan.kiszka@siemens.com, peter.maydell@linaro.org,
claudio.fontana@huawei.com,
Peter Crosthwaite <crosthwaite.peter@gmail.com>,
"Edgar E. Iglesias" <edgar.iglesias@gmail.com>,
Eduardo Habkost <ehabkost@redhat.com>,
Michael Walle <michael@walle.cc>,
Aurelien Jarno <aurelien@aurel32.net>,
Leon Alrae <leon.alrae@imgtec.com>,
Anthony Green <green@moxielogic.com>, Jia Liu <proljc@gmail.com>,
David Gibson <david@gibson.dropbear.id.au>,
Alexander Graf <agraf@suse.de>,
Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>,
Artyom Tarasenko <atar4qemu@gmail.com>,
Bastian Koppelmann <kbastian@mail.uni-paderborn.de>,
Guan Xuetao <gxt@mprc.pku.edu.cn>,
Max Filippov <jcmvbkbc@gmail.com>,
qemu-arm@nongnu.org, qemu-pp <c@nongnu.org>
Subject: Re: [Qemu-devel] [PATCH v3 06/11] tcg: Introduce tb_mark_invalid() and tb_is_invalid()
Date: Thu, 14 Jul 2016 13:04:25 +0100 [thread overview]
Message-ID: <87twfs4e9i.fsf@linaro.org> (raw)
In-Reply-To: <79a897b0-107d-f647-943b-dc5247cac999@redhat.com>
Paolo Bonzini <pbonzini@redhat.com> writes:
> On 14/07/2016 13:10, Sergey Fedorov wrote:
>> > This has merge conflicts with the current state of master. Is there
>> > anyway to have a common implementation that is specialised only when
>> > needed?
>>
>> The point was to put the assumptions on invalid CPU TB state as close to
>> cpu_get_tb_cpu_state() definitions as possible. So that if anyone make
>> changes they can notice those assumptions and correct them if necessary.
>
> It causes some repetition indeed, but I think it's a good idea.
>
> restore_state_to_opc is another case where most implementations have the
> same simple "env->pc = data[0]" implementation.
Yeah, now I've seen cpu_get_tb_cpu_state jump up the hot-path I tend to
agree ;-)
--
Alex Bennée
next prev parent reply other threads:[~2016-07-14 12:04 UTC|newest]
Thread overview: 49+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-07-12 20:13 [Qemu-devel] [PATCH v3 00/11] Reduce lock contention on TCG hot-path Sergey Fedorov
2016-07-12 20:13 ` [Qemu-devel] [PATCH v3 01/11] util/qht: Document memory ordering assumptions Sergey Fedorov
2016-07-12 23:19 ` Emilio G. Cota
2016-07-13 7:36 ` Paolo Bonzini
2016-07-13 17:50 ` Sergey Fedorov
2016-07-14 13:56 ` Paolo Bonzini
2016-07-14 14:08 ` Sergey Fedorov
2016-07-13 11:13 ` Paolo Bonzini
2016-07-13 18:03 ` Sergey Fedorov
2016-07-14 8:05 ` Paolo Bonzini
2016-07-15 12:37 ` Sergey Fedorov
2016-07-15 12:51 ` Paolo Bonzini
2016-07-15 13:18 ` Sergey Fedorov
2016-07-12 20:13 ` [Qemu-devel] [PATCH v3 02/11] cpu-exec: Pass last_tb by value to tb_find_fast() Sergey Fedorov
2016-07-12 20:13 ` [Qemu-devel] [PATCH v3 03/11] tcg: Prepare safe tb_jmp_cache lookup out of tb_lock Sergey Fedorov
2016-07-14 12:14 ` Alex Bennée
2016-07-12 20:13 ` [Qemu-devel] [PATCH v3 04/11] tcg: Prepare safe access to tb_flushed " Sergey Fedorov
2016-07-14 12:45 ` Alex Bennée
2016-07-14 12:55 ` Sergey Fedorov
2016-07-14 13:12 ` Alex Bennée
2016-07-12 20:13 ` [Qemu-devel] [PATCH v3 05/11] target-i386: Remove redundant HF_SOFTMMU_MASK Sergey Fedorov
2016-07-14 12:19 ` Alex Bennée
2016-07-12 20:13 ` [Qemu-devel] [PATCH v3 06/11] tcg: Introduce tb_mark_invalid() and tb_is_invalid() Sergey Fedorov
2016-07-14 10:25 ` Alex Bennée
2016-07-14 11:10 ` Sergey Fedorov
2016-07-14 11:48 ` Paolo Bonzini
2016-07-14 12:04 ` Alex Bennée [this message]
2016-07-14 12:53 ` Alex Bennée
2016-07-14 13:00 ` Sergey Fedorov
2016-07-14 13:12 ` Paolo Bonzini
2016-07-14 13:15 ` Alex Bennée
2016-07-12 20:13 ` [Qemu-devel] [PATCH v3 07/11] tcg: Prepare TB invalidation for lockless TB lookup Sergey Fedorov
2016-07-14 12:59 ` Alex Bennée
2016-07-14 13:11 ` Sergey Fedorov
2016-07-12 20:13 ` [Qemu-devel] [PATCH v3 08/11] tcg: set up tb->page_addr before insertion Sergey Fedorov
2016-07-12 20:13 ` [Qemu-devel] [PATCH v3 09/11] tcg: cpu-exec: remove tb_lock from the hot-path Sergey Fedorov
2016-07-12 20:13 ` [Qemu-devel] [PATCH v3 10/11] tcg: Avoid bouncing tb_lock between tb_gen_code() and tb_add_jump() Sergey Fedorov
2016-07-14 13:01 ` Alex Bennée
2016-07-14 13:13 ` Sergey Fedorov
2016-07-12 20:13 ` [Qemu-devel] [PATCH v3 11/11] tcg: Merge tb_find_slow() and tb_find_fast() Sergey Fedorov
2016-07-14 13:02 ` Alex Bennée
2016-07-13 7:39 ` [Qemu-devel] [PATCH v3 00/11] Reduce lock contention on TCG hot-path Paolo Bonzini
2016-07-13 17:00 ` Sergey Fedorov
2016-07-14 9:55 ` Alex Bennée
2016-07-14 11:13 ` Sergey Fedorov
2016-07-13 18:06 ` Sergey Fedorov
2016-07-14 12:02 ` Alex Bennée
2016-07-14 12:10 ` Paolo Bonzini
2016-07-14 13:13 ` Alex Bennée
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