From nobody Mon Nov 25 09:37:30 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; 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 Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1716792274385905.6472764208178; Sun, 26 May 2024 23:44:34 -0700 (PDT) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1sBU5F-0005pl-3J; Mon, 27 May 2024 02:43:49 -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 1sBU3w-00040f-G1; Mon, 27 May 2024 02:42:33 -0400 Received: from isrv.corpit.ru ([86.62.121.231]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1sBU3r-0007Rp-RC; Mon, 27 May 2024 02:42:26 -0400 Received: from tsrv.corpit.ru (tsrv.tls.msk.ru [192.168.177.2]) by isrv.corpit.ru (Postfix) with ESMTP id 8D4166A400; Mon, 27 May 2024 09:41:31 +0300 (MSK) Received: from tls.msk.ru (mjt.wg.tls.msk.ru [192.168.177.130]) by tsrv.corpit.ru (Postfix) with SMTP id D984ED83F8; Mon, 27 May 2024 09:40:57 +0300 (MSK) Received: (nullmailer pid 50313 invoked by uid 1000); Mon, 27 May 2024 06:40:56 -0000 From: Michael Tokarev To: qemu-devel@nongnu.org Cc: qemu-stable@nongnu.org, Paolo Bonzini , Richard Henderson , Michael Tokarev Subject: [Stable-7.2.12 18/19] target/i386: disable jmp_opt if EFLAGS.RF is 1 Date: Mon, 27 May 2024 09:40:49 +0300 Message-Id: <20240527064056.50205-18-mjt@tls.msk.ru> X-Mailer: git-send-email 2.39.2 In-Reply-To: References: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable 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=86.62.121.231; envelope-from=mjt@tls.msk.ru; helo=isrv.corpit.ru X-Spam_score_int: -68 X-Spam_score: -6.9 X-Spam_bar: ------ X-Spam_report: (-6.9 / 5.0 requ) BAYES_00=-1.9, RCVD_IN_DNSWL_HI=-5, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 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: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZM-MESSAGEID: 1716792280074100004 Content-Type: text/plain; charset="utf-8" From: Paolo Bonzini If EFLAGS.RF is 1, special processing in gen_eob_worker() is needed and therefore goto_tb cannot be used. Suggested-by: Richard Henderson Reviewed-by: Richard Henderson Cc: qemu-stable@nongnu.org Signed-off-by: Paolo Bonzini (cherry picked from commit 8225bff7c5db504f50e54ef66b079854635dba70) Signed-off-by: Michael Tokarev diff --git a/target/i386/tcg/translate.c b/target/i386/tcg/translate.c index 20be036e1c..f8578ad1ea 100644 --- a/target/i386/tcg/translate.c +++ b/target/i386/tcg/translate.c @@ -6946,7 +6946,7 @@ static void i386_tr_init_disas_context(DisasContextBa= se *dcbase, CPUState *cpu) dc->cpuid_7_0_ecx_features =3D env->features[FEAT_7_0_ECX]; dc->cpuid_xsave_features =3D env->features[FEAT_XSAVE]; dc->jmp_opt =3D !((cflags & CF_NO_GOTO_TB) || - (flags & (HF_TF_MASK | HF_INHIBIT_IRQ_MASK))); + (flags & (HF_RF_MASK | HF_TF_MASK | HF_INHIBIT_IRQ_MAS= K))); /* * If jmp_opt, we want to handle each string instruction individually. * For icount also disable repz optimization so that each iteration --=20 2.39.2