From patchwork Tue Sep 12 21:58:14 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Llu=C3=ADs_Vilanova?= X-Patchwork-Id: 9950215 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id AA6876038F for ; Tue, 12 Sep 2017 21:59:05 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 9D25C28CB3 for ; Tue, 12 Sep 2017 21:59:05 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 9209629029; Tue, 12 Sep 2017 21:59:05 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 2D0FA28CCA for ; Tue, 12 Sep 2017 21:59:04 +0000 (UTC) Received: from localhost ([::1]:38841 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1drtCx-00027g-20 for patchwork-qemu-devel@patchwork.kernel.org; Tue, 12 Sep 2017 17:59:03 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:55881) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1drtCO-00020A-IZ for qemu-devel@nongnu.org; Tue, 12 Sep 2017 17:58:29 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1drtCL-0005pl-Rv for qemu-devel@nongnu.org; Tue, 12 Sep 2017 17:58:28 -0400 Received: from roura.ac.upc.es ([147.83.33.10]:42590) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1drtCL-0005pB-Gf for qemu-devel@nongnu.org; Tue, 12 Sep 2017 17:58:25 -0400 Received: from correu-2.ac.upc.es (correu-2.ac.upc.es [147.83.30.92]) by roura.ac.upc.es (8.13.8/8.13.8) with ESMTP id v8CLwLPF022977; Tue, 12 Sep 2017 23:58:21 +0200 Received: from localhost (unknown [31.210.187.58]) by correu-2.ac.upc.es (Postfix) with ESMTPSA id AC45D25B; Tue, 12 Sep 2017 23:58:15 +0200 (CEST) From: =?utf-8?b?TGx1w61z?= Vilanova To: qemu-devel@nongnu.org Date: Wed, 13 Sep 2017 00:58:14 +0300 Message-Id: <150525349438.15988.10881535098471062952.stgit@frigg.lan> X-Mailer: git-send-email 2.14.1 In-Reply-To: <150525010239.15988.8172586618197849619.stgit@frigg.lan> References: <150525010239.15988.8172586618197849619.stgit@frigg.lan> User-Agent: StGit/0.18 MIME-Version: 1.0 X-MIME-Autoconverted: from 8bit to quoted-printable by roura.ac.upc.es id v8CLwLPF022977 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.6.x [fuzzy] X-Received-From: 147.83.33.10 Subject: [Qemu-devel] [PATCH v5 14/22] exec: Add function to synchronously flush TB on a stopped vCPU X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Peter Crosthwaite , Markus Armbruster , "Emilio G. Cota" , Stefan Hajnoczi , Paolo Bonzini , Richard Henderson Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" X-Virus-Scanned: ClamAV using ClamSMTP Signed-off-by: Lluís Vilanova --- accel/stubs/tcg-stub.c | 3 +++ accel/tcg/translate-all.c | 7 +++++++ include/exec/exec-all.h | 1 + 3 files changed, 11 insertions(+) diff --git a/accel/stubs/tcg-stub.c b/accel/stubs/tcg-stub.c index 5dd480b1a2..5226c4a8a4 100644 --- a/accel/stubs/tcg-stub.c +++ b/accel/stubs/tcg-stub.c @@ -20,3 +20,6 @@ void tb_flush(CPUState *cpu) { } +void tb_flush_sync(CPUState *cpu) +{ +} diff --git a/accel/tcg/translate-all.c b/accel/tcg/translate-all.c index 2d1ed06065..a334ac4ccb 100644 --- a/accel/tcg/translate-all.c +++ b/accel/tcg/translate-all.c @@ -929,6 +929,13 @@ done: tb_unlock(); } +void tb_flush_sync(CPUState *cpu) +{ + unsigned tb_flush_count = atomic_mb_read(&tcg_ctx.tb_ctx.tb_flush_count); + assert(cpu == current_cpu); + do_tb_flush(cpu, RUN_ON_CPU_HOST_INT(tb_flush_count)); +} + void tb_flush(CPUState *cpu) { if (tcg_enabled()) { diff --git a/include/exec/exec-all.h b/include/exec/exec-all.h index 673fc066d0..3f38186a5e 100644 --- a/include/exec/exec-all.h +++ b/include/exec/exec-all.h @@ -358,6 +358,7 @@ struct TranslationBlock { void tb_free(TranslationBlock *tb); void tb_flush(CPUState *cpu); +void tb_flush_sync(CPUState *cpu); void tb_phys_invalidate(TranslationBlock *tb, tb_page_addr_t page_addr); TranslationBlock *tb_htable_lookup(CPUState *cpu, target_ulong pc, target_ulong cs_base, uint32_t flags);