From nobody Mon Feb 9 11:33:36 2026 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.com: domain of gnu.org designates 208.118.235.17 as permitted sender) client-ip=208.118.235.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Authentication-Results: mx.zoho.com; spf=pass (zoho.com: domain of gnu.org designates 208.118.235.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; Return-Path: Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) by mx.zohomail.com with SMTPS id 1493264098525110.26558404919035; Wed, 26 Apr 2017 20:34:58 -0700 (PDT) Received: from localhost ([::1]:58527 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1d3aCn-00043y-7Y for importer@patchew.org; Wed, 26 Apr 2017 23:34:57 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:37438) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1d3a7b-0007wt-JI for qemu-devel@nongnu.org; Wed, 26 Apr 2017 23:29:36 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1d3a7a-0001x5-Bm for qemu-devel@nongnu.org; Wed, 26 Apr 2017 23:29:35 -0400 Received: from out4-smtp.messagingengine.com ([66.111.4.28]:60465) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1d3a7U-0001sh-Gm; Wed, 26 Apr 2017 23:29:28 -0400 Received: from compute4.internal (compute4.nyi.internal [10.202.2.44]) by mailout.nyi.internal (Postfix) with ESMTP id 2A36C209C6; Wed, 26 Apr 2017 23:29:28 -0400 (EDT) Received: from frontend2 ([10.202.2.161]) by compute4.internal (MEProxy); Wed, 26 Apr 2017 23:29:28 -0400 Received: from localhost (flamenco.cs.columbia.edu [128.59.20.216]) by mail.messagingengine.com (Postfix) with ESMTPA id D99C32471A; Wed, 26 Apr 2017 23:29:27 -0400 (EDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=braap.org; h=cc :date:from:in-reply-to:message-id:references:subject:to :x-me-sender:x-me-sender:x-sasl-enc:x-sasl-enc; s=mesmtp; bh=LfZ MDdl1ThkY/pzWQ2wbdfnjFqT6ZH5gfdZiXmk8OF4=; b=UvAsEOqnD0OopOmYhny THFvBB/8Tc1qfs2/nuAxW/ULC9iHh+HkeVeTZx9/6SGNGc9obVq8fTnQxWW9XW1t 7ZoDidJjMV2Q5ABoTW9CWAwexQt0F8Ivzx1s1dhR6kO5gABDCVH+8ADg9ekwrQy1 J0CaJfKjb67sAfoFF2y7Auuk= DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:date:from:in-reply-to:message-id :references:subject:to:x-me-sender:x-me-sender:x-sasl-enc :x-sasl-enc; s=fm1; bh=LfZMDdl1ThkY/pzWQ2wbdfnjFqT6ZH5gfdZiXmk8O F4=; b=FuY2nCIkgzV5AW1ZgEQyDAhA45wJNrXy9sQO/EcZQIaW5I0xELEQjQnHU n06xTctqpOT5pKwEhr7mQZVVkq8ZcfWcrE142LOiF69yzHnjL0g7EooLsXrLrz81 lZCQp1gKhvNPjKb7Ujc0UBdRWnU0KcwAbUt2e+vKHOMkF0XSdpYCD7LV1sBlLR+Z HttljUCVnnrVq/24VOCo7YB29n35/qRYkA1H62TkXxJJr/A3JG1RwcEz+Wmvb7y6 AaELqY9tU6/JVBYxK1xaM0ANFEee+s6bMdQsFU+GyyonBExMrp22HSi8EHYGQTnc uEvKuUVbkTKLOZMj4U09tV1pPcqaQ== X-ME-Sender: X-Sasl-enc: hcoVvO6zzpCa3wWJzTb5SUTmyb0a4EyUjYY9o1iz/VSx 1493263767 From: "Emilio G. Cota" To: qemu-devel@nongnu.org Date: Wed, 26 Apr 2017 23:29:21 -0400 Message-Id: <1493263764-18657-9-git-send-email-cota@braap.org> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1493263764-18657-1-git-send-email-cota@braap.org> References: <1493263764-18657-1-git-send-email-cota@braap.org> X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 66.111.4.28 Subject: [Qemu-devel] [PATCH v4 08/11] target/i386: introduce gen_jr helper to generate lookup_and_goto_ptr 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 Maydell , Eduardo Habkost , Peter Crosthwaite , Stefan Weil , Alexander Graf , alex.bennee@linaro.org, qemu-arm@nongnu.org, Pranith Kumar , Paolo Bonzini , Aurelien Jarno , Richard Henderson Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail: RSF_0 Z_629925259 SPT_0 Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" This helper will be used by subsequent changes. Signed-off-by: Emilio G. Cota Reviewed-by: Richard Henderson --- target/i386/translate.c | 25 ++++++++++++++++++++++++- 1 file changed, 24 insertions(+), 1 deletion(-) diff --git a/target/i386/translate.c b/target/i386/translate.c index 1d1372f..f0e48dc 100644 --- a/target/i386/translate.c +++ b/target/i386/translate.c @@ -141,6 +141,7 @@ typedef struct DisasContext { } DisasContext; =20 static void gen_eob(DisasContext *s); +static void gen_jr(DisasContext *s, TCGv dest); static void gen_jmp(DisasContext *s, target_ulong eip); static void gen_jmp_tb(DisasContext *s, target_ulong eip, int tb_num); static void gen_op(DisasContext *s1, int op, TCGMemOp ot, int d); @@ -2509,7 +2510,8 @@ static void gen_bnd_jmp(DisasContext *s) If INHIBIT, set HF_INHIBIT_IRQ_MASK if it isn't already set. If RECHECK_TF, emit a rechecking helper for #DB, ignoring the state of S->TF. This is used by the syscall/sysret insns. */ -static void gen_eob_worker(DisasContext *s, bool inhibit, bool recheck_tf) +static void +do_gen_eob_worker(DisasContext *s, bool inhibit, bool recheck_tf, TCGv jr) { gen_update_cc_op(s); =20 @@ -2530,12 +2532,27 @@ static void gen_eob_worker(DisasContext *s, bool in= hibit, bool recheck_tf) tcg_gen_exit_tb(0); } else if (s->tf) { gen_helper_single_step(cpu_env); + } else if (!TCGV_IS_UNUSED(jr)) { + TCGv vaddr =3D tcg_temp_new(); + + tcg_gen_add_tl(vaddr, jr, cpu_seg_base[R_CS]); + tcg_gen_lookup_and_goto_ptr(vaddr); + tcg_temp_free(vaddr); } else { tcg_gen_exit_tb(0); } s->is_jmp =3D DISAS_TB_JUMP; } =20 +static inline void +gen_eob_worker(DisasContext *s, bool inhibit, bool recheck_tf) +{ + TCGv unused; + + TCGV_UNUSED(unused); + do_gen_eob_worker(s, inhibit, recheck_tf, unused); +} + /* End of block. If INHIBIT, set HF_INHIBIT_IRQ_MASK if it isn't already set. */ static void gen_eob_inhibit_irq(DisasContext *s, bool inhibit) @@ -2549,6 +2566,12 @@ static void gen_eob(DisasContext *s) gen_eob_worker(s, false, false); } =20 +/* Jump to register */ +static void gen_jr(DisasContext *s, TCGv dest) +{ + do_gen_eob_worker(s, false, false, dest); +} + /* generate a jump to eip. No segment change must happen before as a direct call to the next block may occur */ static void gen_jmp_tb(DisasContext *s, target_ulong eip, int tb_num) --=20 2.7.4