From patchwork Wed Sep 14 21:23:22 2016 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: 670121 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org 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 ozlabs.org (Postfix) with ESMTPS id 3sZF1j6bq0z9sdm for ; Thu, 15 Sep 2016 07:24:57 +1000 (AEST) Received: from localhost ([::1]:58823 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bkHfr-0003GN-En for incoming@patchwork.ozlabs.org; Wed, 14 Sep 2016 17:24:55 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:48797) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bkHeT-0002ER-61 for qemu-devel@nongnu.org; Wed, 14 Sep 2016 17:23:30 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1bkHeP-0008Lk-4j for qemu-devel@nongnu.org; Wed, 14 Sep 2016 17:23:29 -0400 Received: from roura.ac.upc.edu ([147.83.33.10]:51957 helo=roura.ac.upc.es) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bkHeO-0008Ka-OU for qemu-devel@nongnu.org; Wed, 14 Sep 2016 17:23:25 -0400 Received: from gw-3.ac.upc.es (gw-3.ac.upc.es [147.83.30.9]) by roura.ac.upc.es (8.13.8/8.13.8) with ESMTP id u8ELNNAo006226; Wed, 14 Sep 2016 23:23:23 +0200 Received: from localhost (unknown [84.88.51.85]) by gw-3.ac.upc.es (Postfix) with ESMTPSA id E51E836C; Wed, 14 Sep 2016 23:23:22 +0200 (CEST) From: =?utf-8?b?TGx1w61z?= Vilanova To: qemu-devel@nongnu.org Date: Wed, 14 Sep 2016 23:23:22 +0200 Message-Id: <147388820263.17002.15629920094257482337.stgit@fimbulvetr.bsc.es> X-Mailer: git-send-email 2.9.3 In-Reply-To: <147388819720.17002.17020698136656908126.stgit@fimbulvetr.bsc.es> References: <147388819720.17002.17020698136656908126.stgit@fimbulvetr.bsc.es> User-Agent: StGit/0.17.1-dirty MIME-Version: 1.0 X-MIME-Autoconverted: from 8bit to quoted-printable by roura.ac.upc.es id u8ELNNAo006226 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.6.x X-Received-From: 147.83.33.10 Subject: [Qemu-devel] [PATCH 1/4] exec: [tcg] Refactor flush of per-CPU virtual TB cache 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: Eduardo Habkost , Peter Crosthwaite , Stefan Hajnoczi , Paolo Bonzini , Richard Henderson Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" The function is reused in later patches. Signed-off-by: Lluís Vilanova --- cputlb.c | 2 +- include/exec/exec-all.h | 6 ++++++ translate-all.c | 9 +++++++-- 3 files changed, 14 insertions(+), 3 deletions(-) diff --git a/cputlb.c b/cputlb.c index d068ee5..686a09c 100644 --- a/cputlb.c +++ b/cputlb.c @@ -81,7 +81,7 @@ void tlb_flush(CPUState *cpu, int flush_global) memset(env->tlb_table, -1, sizeof(env->tlb_table)); memset(env->tlb_v_table, -1, sizeof(env->tlb_v_table)); - memset(cpu->tb_jmp_cache, 0, sizeof(cpu->tb_jmp_cache)); + tb_flush_jmp_cache_all(cpu); env->vtlb_index = 0; env->tlb_flush_addr = -1; diff --git a/include/exec/exec-all.h b/include/exec/exec-all.h index d008296..e2124dc 100644 --- a/include/exec/exec-all.h +++ b/include/exec/exec-all.h @@ -265,6 +265,12 @@ struct TranslationBlock { }; void tb_free(TranslationBlock *tb); +/** + * tb_flush_jmp_cache_all: + * + * Flush the virtual translation block cache. + */ +void tb_flush_jmp_cache_all(CPUState *env); void tb_flush(CPUState *cpu); void tb_phys_invalidate(TranslationBlock *tb, tb_page_addr_t page_addr); diff --git a/translate-all.c b/translate-all.c index 0dd6466..ebd9fa0 100644 --- a/translate-all.c +++ b/translate-all.c @@ -851,8 +851,7 @@ void tb_flush(CPUState *cpu) tcg_ctx.tb_ctx.nb_tbs = 0; CPU_FOREACH(cpu) { - memset(cpu->tb_jmp_cache, 0, sizeof(cpu->tb_jmp_cache)); - cpu->tb_flushed = true; + tb_flush_jmp_cache_all(cpu); } qht_reset_size(&tcg_ctx.tb_ctx.htable, CODE_GEN_HTABLE_SIZE); @@ -1579,6 +1578,12 @@ void tb_check_watchpoint(CPUState *cpu) } } +void tb_flush_jmp_cache_all(CPUState *cpu) +{ + memset(cpu->tb_jmp_cache, 0, sizeof(cpu->tb_jmp_cache)); + cpu->tb_flushed = true; +} + #ifndef CONFIG_USER_ONLY /* in deterministic execution mode, instructions doing device I/Os must be at the end of the TB */