From nobody Tue Feb 10 09:45:21 2026 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 175221805058321.430694694514273; Fri, 11 Jul 2025 00:14:10 -0700 (PDT) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1ua7wp-0002dy-PJ; Fri, 11 Jul 2025 03:13:34 -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 1ua7wc-0002VM-R9 for qemu-devel@nongnu.org; Fri, 11 Jul 2025 03:13:18 -0400 Received: from mail.loongson.cn ([114.242.206.163]) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1ua7wZ-00044M-MP for qemu-devel@nongnu.org; Fri, 11 Jul 2025 03:13:18 -0400 Received: from loongson.cn (unknown [10.2.5.213]) by gateway (Coremail) with SMTP id _____8AxDGuEuXBo9AUnAQ--.17242S3; Fri, 11 Jul 2025 15:13:08 +0800 (CST) Received: from localhost.localdomain (unknown [10.2.5.213]) by front1 (Coremail) with SMTP id qMiowJCxM+R_uXBoo28SAA--.39054S5; Fri, 11 Jul 2025 15:13:08 +0800 (CST) From: Bibo Mao To: Song Gao Cc: qemu-devel@nongnu.org Subject: [PULL v2 3/4] target/loongarch: Fix CSR STLBPS register write emulation Date: Fri, 11 Jul 2025 15:13:01 +0800 Message-Id: <20250711071302.742014-4-maobibo@loongson.cn> X-Mailer: git-send-email 2.39.3 In-Reply-To: <20250711071302.742014-1-maobibo@loongson.cn> References: <20250711071302.742014-1-maobibo@loongson.cn> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-CM-TRANSID: qMiowJCxM+R_uXBoo28SAA--.39054S5 X-CM-SenderInfo: xpdruxter6z05rqj20fqof0/ X-Coremail-Antispam: 1Uk129KBjDUn29KB7ZKAUJUUUUU529EdanIXcx71UUUUU7KY7 ZEXasCq-sGcSsGvfJ3UbIjqfuFe4nvWSU5nxnvy29KBjDU0xBIdaVrnUUvcSsGvfC2Kfnx nUUI43ZEXa7xR_UUUUUUUUU== 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=114.242.206.163; envelope-from=maobibo@loongson.cn; helo=mail.loongson.cn 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: 1752218056752116600 Content-Type: text/plain; charset="utf-8" Function helper_csrwr_stlbps() is emulation with CSR STLBPS register write operation. However there is only parameter checking action, and no register updating action. Here update value of CSR_STLBPS when parameter passes to check. Signed-off-by: Bibo Mao Reviewed-by: Song Gao --- target/loongarch/tcg/csr_helper.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/target/loongarch/tcg/csr_helper.c b/target/loongarch/tcg/csr_h= elper.c index 46d331ce8a..28b1bb86bd 100644 --- a/target/loongarch/tcg/csr_helper.c +++ b/target/loongarch/tcg/csr_helper.c @@ -29,7 +29,11 @@ target_ulong helper_csrwr_stlbps(CPULoongArchState *env,= target_ulong val) if (!check_ps(env, tlb_ps)) { qemu_log_mask(LOG_GUEST_ERROR, "Attempted set ps %d\n", tlb_ps); + } else { + /* Only update PS field, reserved bit keeps zero */ + env->CSR_STLBPS =3D FIELD_DP64(old_v, CSR_STLBPS, PS, tlb_ps); } + return old_v; } =20 --=20 2.43.5