From nobody Fri Nov 14 19:22:32 2025 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=gmail.com ARC-Seal: i=1; a=rsa-sha256; t=1589909041; cv=none; d=zohomail.com; s=zohoarc; b=nOZ4sUMmoqtf5cI2DV4haKz+5AOvCobDBcEiE6EV3FrbweF9hG0FLqLCkFwOnucmWWRJQpOBwtksFmi8cBCtBEz3cfwBQgu1cWoC34A/dpoGILj9rC1+FcdQKQW6Ku2LKgVIlhKyNZselXtA7EEdFuyJo32f4oa9oBKozWTxhdg= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1589909041; h=Cc:Date:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:Message-ID:References:Sender:Subject:To; bh=WgQ2lUBbzmR6637b2t29iBGO13yjSvaFbByDwQhQzFg=; b=BPEOD82TEUTaOreV7zaZdhNLecp2zT8l1+e7JPOQlQbvDDRzu7IsHvhw3clreEUCFGoDLsdnr6okF5A7S3UfWXH5/onpvQ77fkGfl6cQe9FDpHe3nrgoH8ySXldLtRSb+3/C2kWLRfG3qG37nyhutuTlmTxQEpIYfPYJNWkjzjk= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail header.from= (p=none dis=none) header.from= Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 158990904169035.853812668893966; Tue, 19 May 2020 10:24:01 -0700 (PDT) Received: from localhost ([::1]:38444 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jb5yC-00062e-GA for importer@patchew.org; Tue, 19 May 2020 13:24:00 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:57066) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1jb50O-00007m-1r for qemu-devel@nongnu.org; Tue, 19 May 2020 12:22:12 -0400 Received: from mail-wm1-x343.google.com ([2a00:1450:4864:20::343]:35934) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1jb50N-0008TY-BO for qemu-devel@nongnu.org; Tue, 19 May 2020 12:22:11 -0400 Received: by mail-wm1-x343.google.com with SMTP id u188so4339225wmu.1 for ; Tue, 19 May 2020 09:22:10 -0700 (PDT) Received: from AK-L.domain.name ([41.40.225.250]) by smtp.gmail.com with ESMTPSA id j190sm202729wmb.33.2020.05.19.09.22.07 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 19 May 2020 09:22:08 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=WgQ2lUBbzmR6637b2t29iBGO13yjSvaFbByDwQhQzFg=; b=IrrC+YyDylJ0xTeut8LfctSaF1PoN+zl/oGoisV235QyfWQzbT1Pa9xMSzo3R1TQz+ wxqScfSsdQ0Frkcqibp+OAYi6TQH+ttiky7pjL06obmspCA0Yk5so1FfRTxVNoz4IDEI NnVpMtfikiP1XetLexqUX1uWSCmz+v8neHbiXVWOSu/tuYV3N22bwkA8qJ1cWbJwNl/h CKssA5we1cZiMHhDWZmP77b+i4TbR5sMDZrFIpTEdznzsByqUc2KCbjsdpCUPDJTf9WP +vsHBwiL/ngCF2hlwE350MTOpv7qu/mpUgT+C8EeD28ekh+edEx6TX5wXffaYCmtVsS4 yr7Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=WgQ2lUBbzmR6637b2t29iBGO13yjSvaFbByDwQhQzFg=; b=qnDoq2q7BVBYvt1fmo72re+HDVJqgeBCgXLNEg5omAwxv9AR7wcVmc5FuEWt9AG2MT 2wCYpqpIT8p6JfuLA4mYKfVErW6oVLGBQ8hIXqCFPixO+frcYGJDGLjLPQrVw4Dod25p 8VES7mnKKcrS1C2aCU7cBbRehn8XDSwkKKYa9WUSbC9K2gcis1BlyToSZLxFhqNsDO7p tKrPaBJDExWcohhS6l6Ftsx/3dFK32SufxfsqyqZGgUJAHuP4BWv0/SlQxBfWFJNiage zCC/uBEkWS8r8gCdrJDe7PLvqyZo8T+sVkChm0yPyPDnbaQ9M7PhqG6b24Vu9eSMt64B Gd/A== X-Gm-Message-State: AOAM533W+AKmE8gl9fI6++uM07XjF6bnoKfSO9BMHScvZMhCQluAuAmd NtHR6xJbo+6W+e1Hvr9AZGKXHiQK X-Google-Smtp-Source: ABdhPJwTRG+6rnYSZ3MXVJiq9gH0GAyvtyOB1CdM7O68Rz1KxD5uPxue/kVLpMFjF7KgWZIzz75v9Q== X-Received: by 2002:a05:600c:2c53:: with SMTP id r19mr173209wmg.83.1589905329663; Tue, 19 May 2020 09:22:09 -0700 (PDT) From: Ahmed Karaman To: qemu-devel@nongnu.org, rth@twiddle.net, ysato@users.sourceforge.jp Subject: [PATCH 1/2] target/hppa: Check page crossings in use_goto_tb() only in system mode Date: Tue, 19 May 2020 18:21:43 +0200 Message-Id: <20200519162144.10831-2-ahmedkhaledkaraman@gmail.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200519162144.10831-1-ahmedkhaledkaraman@gmail.com> References: <20200519162144.10831-1-ahmedkhaledkaraman@gmail.com> Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2a00:1450:4864:20::343; envelope-from=ahmedkhaledkaraman@gmail.com; helo=mail-wm1-x343.google.com X-detected-operating-system: by eggs.gnu.org: No matching host in p0f cache. That's all we know. X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_BL=0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_PASS=-0.001 autolearn=_AUTOLEARN X-Spam_action: no action X-Mailman-Approved-At: Tue, 19 May 2020 13:21:16 -0400 X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Ahmed Karaman , aleksandar.qemu.devel@gmail.com, alex.bennee@linaro.org, stefanha@redhat.com Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Restrict page crossing check to system mode only. By doing this, the hppa target performance in user mode improves by up to 6.93%. Of course, the amount of performance improvement will vary depending on the nature of the hppa executable being emulated by QEMU. While doing this correction, this patch adds some more verbose comments in use_goto_tb() as well. Signed-off-by: Ahmed Karaman --- target/hppa/translate.c | 18 ++++++++++++++---- 1 file changed, 14 insertions(+), 4 deletions(-) diff --git a/target/hppa/translate.c b/target/hppa/translate.c index 52d7bea1ea..7c9180cd76 100644 --- a/target/hppa/translate.c +++ b/target/hppa/translate.c @@ -817,10 +817,20 @@ static bool gen_illegal(DisasContext *ctx) =20 static bool use_goto_tb(DisasContext *ctx, target_ureg dest) { - /* Suppress goto_tb for page crossing, IO, or single-steping. */ - return !(((ctx->base.pc_first ^ dest) & TARGET_PAGE_MASK) - || (tb_cflags(ctx->base.tb) & CF_LAST_IO) - || ctx->base.singlestep_enabled); + /* No direct translation block linking with CF_LAST_IO or in singleste= p */ + if ((tb_cflags(ctx->base.tb) & CF_LAST_IO) || + ctx->base.singlestep_enabled) { + return false; + } + +#ifndef CONFIG_USER_ONLY + /* Directly link translation blocks only from inside the same guest pa= ge */ + if ((ctx->base.pc_first ^ dest) & TARGET_PAGE_MASK) { + return false; + } +#endif + + return true; } =20 /* If the next insn is to be nullified, and it's on the same page, --=20 2.17.1 From nobody Fri Nov 14 19:22:32 2025 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=gmail.com ARC-Seal: i=1; a=rsa-sha256; t=1589908928; cv=none; d=zohomail.com; s=zohoarc; b=S9tf0Ylnq4XljBDTzG/FZ9VsNIUSNFxMwv4Bzy85VUAgEJXHQeK+6fmvXYYGKOuz8k5GOE7ciQAS4CpcybxKaytlrGeLlXcMjauN1DHXlMQZ+dsrXYOCXN/mlJSdQeTzNePRQniuCiUhHyeD1kRakTepggFgJhRfHuJeWgRN12Q= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1589908928; h=Cc:Date:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:Message-ID:References:Sender:Subject:To; bh=au8xXNArAeEcrfRxUdWVQbbVD0Wo1gkuJ3rS47HgeWw=; b=hT3JKRJyspnM3dIZWhTsc3XGjv2ALupAOdK/DuP+2Hwe4zcMqoPPn1gV2IC7weet9eBDZmANBly+U1mAITimaVXeMrF+DET38vJvuN7NJ6CkgWZWxFyUkuEntlN0gtqE4AmXp3vXpY8262adzu1jijex9ZTwd1oYgsuQicQ3glI= ARC-Authentication-Results: i=1; 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That's all we know. X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_BL=0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_PASS=-0.001 autolearn=_AUTOLEARN X-Spam_action: no action X-Mailman-Approved-At: Tue, 19 May 2020 13:21:16 -0400 X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Ahmed Karaman , aleksandar.qemu.devel@gmail.com, alex.bennee@linaro.org, stefanha@redhat.com Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Add the page crossings check when using system mode. If this fix is not applied, a number of bugs may occasionally occur during target rx system mode emulation. Rename parameter dc of type DisasContext* to the more common name ctx, to keep consistency with other targets. Signed-off-by: Ahmed Karaman --- target/rx/translate.c | 12 ++++++++---- 1 file changed, 8 insertions(+), 4 deletions(-) diff --git a/target/rx/translate.c b/target/rx/translate.c index 61e86653a4..77497ddbfb 100644 --- a/target/rx/translate.c +++ b/target/rx/translate.c @@ -143,13 +143,17 @@ void rx_cpu_dump_state(CPUState *cs, FILE *f, int fla= gs) } } =20 -static bool use_goto_tb(DisasContext *dc, target_ulong dest) +static bool use_goto_tb(DisasContext *ctx, target_ulong dest) { - if (unlikely(dc->base.singlestep_enabled)) { + if (unlikely(ctx->base.singlestep_enabled)) { return false; - } else { - return true; } + +#ifndef CONFIG_USER_ONLY + return (ctx->base.tb->pc & TARGET_PAGE_MASK) =3D=3D (dest & TARGET_PAG= E_MASK); +#else + return true; +#endif } =20 static void gen_goto_tb(DisasContext *dc, int n, target_ulong dest) --=20 2.17.1