From nobody Tue Feb 10 16:18:19 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.zohomail.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 1500604765821106.9077228411794; Thu, 20 Jul 2017 19:39:25 -0700 (PDT) Received: from localhost ([::1]:40695 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dYNqe-00055d-Hr for importer@patchew.org; Thu, 20 Jul 2017 22:39:24 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:39990) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dYNoj-0003sX-WA for qemu-devel@nongnu.org; Thu, 20 Jul 2017 22:37:26 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1dYNog-0007S1-U6 for qemu-devel@nongnu.org; Thu, 20 Jul 2017 22:37:26 -0400 Received: from mailapp01.imgtec.com ([195.59.15.196]:56925) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dYNog-0007R7-N9 for qemu-devel@nongnu.org; Thu, 20 Jul 2017 22:37:22 -0400 Received: from HHMAIL01.hh.imgtec.org (unknown [10.100.10.19]) by Forcepoint Email with ESMTPS id 205F2A93AF46B; Fri, 21 Jul 2017 03:37:19 +0100 (IST) Received: from hhmipssw204.hh.imgtec.org (10.100.21.121) by HHMAIL01.hh.imgtec.org (10.100.10.21) with Microsoft SMTP Server (TLS) id 14.3.294.0; Fri, 21 Jul 2017 03:37:20 +0100 From: Yongbok Kim To: Date: Fri, 21 Jul 2017 03:37:02 +0100 Message-ID: <1500604635-15027-2-git-send-email-yongbok.kim@imgtec.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1500604635-15027-1-git-send-email-yongbok.kim@imgtec.com> References: <1500604635-15027-1-git-send-email-yongbok.kim@imgtec.com> MIME-Version: 1.0 X-Originating-IP: [10.100.21.121] X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x [fuzzy] X-Received-From: 195.59.15.196 Subject: [Qemu-devel] [PULL 01/14] target/mips: Fix MIPS64 MFC0 UserLocal on BE host 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 , James Hogan , Petar Jovanovic , Aurelien Jarno 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 Content-Type: text/plain; charset="utf-8" From: James Hogan Using MFC0 to read CP0_UserLocal uses tcg_gen_ld32s_tl, however CP0_UserLocal is a target_ulong. On a big endian host with a MIPS64 target this reads and sign extends the more significant half of the 64-bit register. Fix this by using ld_tl to load the whole target_ulong and ext32s_tl to sign extend it, as done for various other target_ulong COP0 registers. Fixes: d279279e2b5c ("target-mips: implement UserLocal Register") Signed-off-by: James Hogan Cc: Yongbok Kim Cc: Aurelien Jarno Cc: Petar Jovanovic Reviewed-by: Yongbok Kim Signed-off-by: Yongbok Kim --- target/mips/translate.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/target/mips/translate.c b/target/mips/translate.c index 1fd18e9..db6e5b5 100644 --- a/target/mips/translate.c +++ b/target/mips/translate.c @@ -5144,8 +5144,9 @@ static void gen_mfc0(DisasContext *ctx, TCGv arg, int= reg, int sel) goto cp0_unimplemented; case 2: CP0_CHECK(ctx->ulri); - tcg_gen_ld32s_tl(arg, cpu_env, - offsetof(CPUMIPSState, active_tc.CP0_UserLoca= l)); + tcg_gen_ld_tl(arg, cpu_env, + offsetof(CPUMIPSState, active_tc.CP0_UserLocal)); + tcg_gen_ext32s_tl(arg, arg); rn =3D "UserLocal"; break; default: --=20 2.7.4