From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 24DC9C38A02 for ; Fri, 28 Oct 2022 13:26:11 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1ooPLQ-00028g-SS; Fri, 28 Oct 2022 09:24:21 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1ooPKh-0001Jd-Ar for qemu-devel@nongnu.org; Fri, 28 Oct 2022 09:23:40 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.133.124]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1ooPKe-0005K2-Ox for qemu-devel@nongnu.org; Fri, 28 Oct 2022 09:23:35 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1666963412; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=EOwCbSx6RaFxN3KnKE6Mv1+VPvPhECR7ju5uIwAb1Uc=; b=dpInSsK1ao48vILrdlR1X4vWIxu+9gP17bIK2lOOv2rxOo8bOflInul2cSij9oPsQmN2lJ PuwG3sEI1UecGkzMCaZFXJ9mhS6XMY613LVP5XGifhzjz+AcqkOx5bQ3n9lASMo4bsfhvA xfAEkg/XNakxC/2SzhWAy/lwbch1bMo= Received: from mimecast-mx02.redhat.com (mimecast-mx02.redhat.com [66.187.233.88]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-186-759F9OfeNLWOzXI4dHmMyw-1; Fri, 28 Oct 2022 09:23:28 -0400 X-MC-Unique: 759F9OfeNLWOzXI4dHmMyw-1 Received: from smtp.corp.redhat.com (int-mx03.intmail.prod.int.rdu2.redhat.com [10.11.54.3]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 71923858F13; Fri, 28 Oct 2022 13:23:28 +0000 (UTC) Received: from thuth.com (unknown [10.39.193.19]) by smtp.corp.redhat.com (Postfix) with ESMTP id 29D02112131B; Fri, 28 Oct 2022 13:23:26 +0000 (UTC) From: Thomas Huth To: Stefan Hajnoczi , qemu-devel@nongnu.org Cc: Xuzhou Cheng , Bin Meng , =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= Subject: [PULL 13/21] accel/qtest: Support qtest accelerator for Windows Date: Fri, 28 Oct 2022 15:22:56 +0200 Message-Id: <20221028132304.829103-14-thuth@redhat.com> In-Reply-To: <20221028132304.829103-1-thuth@redhat.com> References: <20221028132304.829103-1-thuth@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Scanned-By: MIMEDefang 3.1 on 10.11.54.3 Received-SPF: pass client-ip=170.10.133.124; envelope-from=thuth@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -25 X-Spam_score: -2.6 X-Spam_bar: -- X-Spam_report: (-2.6 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.516, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H2=-0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Qemu-devel" Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org From: Xuzhou Cheng Currently signal SIGIPI [=SIGUSR1] is used to kick the dummy CPU when qtest accelerator is used. However SIGUSR1 is unsupported on Windows. To support Windows, we add a QemuSemaphore CPUState::sem to kick the dummy CPU instead for Windows. Signed-off-by: Xuzhou Cheng Signed-off-by: Bin Meng Reviewed-by: Marc-André Lureau Message-Id: <20221028045736.679903-2-bin.meng@windriver.com> Signed-off-by: Thomas Huth --- include/hw/core/cpu.h | 1 + accel/dummy-cpus.c | 14 ++++++++++++-- softmmu/cpus.c | 9 +++++---- accel/meson.build | 2 +- accel/qtest/meson.build | 3 +-- 5 files changed, 20 insertions(+), 9 deletions(-) diff --git a/include/hw/core/cpu.h b/include/hw/core/cpu.h index f9b58773f7..8830546121 100644 --- a/include/hw/core/cpu.h +++ b/include/hw/core/cpu.h @@ -333,6 +333,7 @@ struct CPUState { struct QemuThread *thread; #ifdef _WIN32 HANDLE hThread; + QemuSemaphore sem; #endif int thread_id; bool running, has_waiter; diff --git a/accel/dummy-cpus.c b/accel/dummy-cpus.c index 10429fdfb2..d6a1b8d0a2 100644 --- a/accel/dummy-cpus.c +++ b/accel/dummy-cpus.c @@ -21,8 +21,6 @@ static void *dummy_cpu_thread_fn(void *arg) { CPUState *cpu = arg; - sigset_t waitset; - int r; rcu_register_thread(); @@ -32,8 +30,13 @@ static void *dummy_cpu_thread_fn(void *arg) cpu->can_do_io = 1; current_cpu = cpu; +#ifndef _WIN32 + sigset_t waitset; + int r; + sigemptyset(&waitset); sigaddset(&waitset, SIG_IPI); +#endif /* signal CPU creation */ cpu_thread_signal_created(cpu); @@ -41,6 +44,7 @@ static void *dummy_cpu_thread_fn(void *arg) do { qemu_mutex_unlock_iothread(); +#ifndef _WIN32 do { int sig; r = sigwait(&waitset, &sig); @@ -49,6 +53,9 @@ static void *dummy_cpu_thread_fn(void *arg) perror("sigwait"); exit(1); } +#else + qemu_sem_wait(&cpu->sem); +#endif qemu_mutex_lock_iothread(); qemu_wait_io_event(cpu); } while (!cpu->unplug); @@ -69,4 +76,7 @@ void dummy_start_vcpu_thread(CPUState *cpu) cpu->cpu_index); qemu_thread_create(cpu->thread, thread_name, dummy_cpu_thread_fn, cpu, QEMU_THREAD_JOINABLE); +#ifdef _WIN32 + qemu_sem_init(&cpu->sem, 0); +#endif } diff --git a/softmmu/cpus.c b/softmmu/cpus.c index 61b27ff59d..9dd1a4dc17 100644 --- a/softmmu/cpus.c +++ b/softmmu/cpus.c @@ -437,18 +437,19 @@ void qemu_wait_io_event(CPUState *cpu) void cpus_kick_thread(CPUState *cpu) { -#ifndef _WIN32 - int err; - if (cpu->thread_kicked) { return; } cpu->thread_kicked = true; - err = pthread_kill(cpu->thread->thread, SIG_IPI); + +#ifndef _WIN32 + int err = pthread_kill(cpu->thread->thread, SIG_IPI); if (err && err != ESRCH) { fprintf(stderr, "qemu:%s: %s", __func__, strerror(err)); exit(1); } +#else + qemu_sem_post(&cpu->sem); #endif } diff --git a/accel/meson.build b/accel/meson.build index b9a963cf80..259c35c4c8 100644 --- a/accel/meson.build +++ b/accel/meson.build @@ -16,5 +16,5 @@ dummy_ss.add(files( 'dummy-cpus.c', )) -specific_ss.add_all(when: ['CONFIG_SOFTMMU', 'CONFIG_POSIX'], if_true: dummy_ss) +specific_ss.add_all(when: ['CONFIG_SOFTMMU'], if_true: dummy_ss) specific_ss.add_all(when: ['CONFIG_XEN'], if_true: dummy_ss) diff --git a/accel/qtest/meson.build b/accel/qtest/meson.build index 4c65600293..176d990ae1 100644 --- a/accel/qtest/meson.build +++ b/accel/qtest/meson.build @@ -1,2 +1 @@ -qtest_module_ss.add(when: ['CONFIG_SOFTMMU', 'CONFIG_POSIX'], - if_true: files('qtest.c')) +qtest_module_ss.add(when: ['CONFIG_SOFTMMU'], if_true: files('qtest.c')) -- 2.31.1