From nobody Fri Nov 14 23:31:26 2025 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 1759683271501639.9334798604614; Sun, 5 Oct 2025 09:54:31 -0700 (PDT) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1v5RvU-0000TE-1l; Sun, 05 Oct 2025 12:49:36 -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 1v5RvO-0000S6-59; Sun, 05 Oct 2025 12:49:30 -0400 Received: from isrv.corpit.ru ([212.248.84.144]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1v5RvM-000777-FJ; Sun, 05 Oct 2025 12:49:29 -0400 Received: from tsrv.corpit.ru (tsrv.tls.msk.ru [192.168.177.2]) by isrv.corpit.ru (Postfix) with ESMTP id BFE1015AA3A; Sun, 05 Oct 2025 19:49:21 +0300 (MSK) Received: from think4mjt.tls.msk.ru (mjtthink.wg.tls.msk.ru [192.168.177.146]) by tsrv.corpit.ru (Postfix) with ESMTP id 472782996F3; Sun, 5 Oct 2025 19:49:25 +0300 (MSK) From: Michael Tokarev To: qemu-devel@nongnu.org Cc: qemu-stable@nongnu.org, vhaudiquet , Valentin Haudiquet , Anton Johansson , Daniel Henrique Barboza , Heinrich Schuchardt , Richard Henderson , Alistair Francis , Michael Tokarev Subject: [Stable-10.1.1 74/81] target/riscv: Fix endianness swap on compressed instructions Date: Sun, 5 Oct 2025 19:47:54 +0300 Message-ID: <20251005164822.442861-14-mjt@tls.msk.ru> X-Mailer: git-send-email 2.47.3 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=212.248.84.144; envelope-from=mjt@tls.msk.ru; helo=isrv.corpit.ru X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, RCVD_IN_VALIDITY_SAFE_BLOCKED=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 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: 1759683279991116600 Content-Type: text/plain; charset="utf-8" From: vhaudiquet Three instructions were not using the endianness swap flag, which resulted = in a bug on big-endian architectures. Resolves: https://gitlab.com/qemu-project/qemu/-/issues/3131 Buglink: https://bugs.launchpad.net/ubuntu/+source/qemu/+bug/2123828 Fixes: e0a3054f18e ("target/riscv: add support for Zcb extension") Signed-off-by: Valentin Haudiquet Cc: qemu-stable@nongnu.org Reviewed-by: Anton Johansson Reviewed-by: Daniel Henrique Barboza Reviewed-by: Heinrich Schuchardt Reviewed-by: Richard Henderson Message-ID: <20250929115543.1648157-1-valentin.haudiquet@canonical.com> Signed-off-by: Alistair Francis (cherry picked from commit b25133d38fe693589cf695b85968caa0724bfafd) Signed-off-by: Michael Tokarev diff --git a/target/riscv/insn_trans/trans_rvzce.c.inc b/target/riscv/insn_= trans/trans_rvzce.c.inc index c77c2b927b..dd15af0f54 100644 --- a/target/riscv/insn_trans/trans_rvzce.c.inc +++ b/target/riscv/insn_trans/trans_rvzce.c.inc @@ -88,13 +88,13 @@ static bool trans_c_lbu(DisasContext *ctx, arg_c_lbu *a) static bool trans_c_lhu(DisasContext *ctx, arg_c_lhu *a) { REQUIRE_ZCB(ctx); - return gen_load(ctx, a, MO_UW); + return gen_load(ctx, a, MO_TEUW); } =20 static bool trans_c_lh(DisasContext *ctx, arg_c_lh *a) { REQUIRE_ZCB(ctx); - return gen_load(ctx, a, MO_SW); + return gen_load(ctx, a, MO_TESW); } =20 static bool trans_c_sb(DisasContext *ctx, arg_c_sb *a) @@ -106,7 +106,7 @@ static bool trans_c_sb(DisasContext *ctx, arg_c_sb *a) static bool trans_c_sh(DisasContext *ctx, arg_c_sh *a) { REQUIRE_ZCB(ctx); - return gen_store(ctx, a, MO_UW); + return gen_store(ctx, a, MO_TEUW); } =20 #define X_S0 8 --=20 2.47.3