From nobody Wed Feb 11 01:36:57 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 1691671351713234.9473549020878; Thu, 10 Aug 2023 05:42:31 -0700 (PDT) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1qU4yp-0001Ce-Tg; Thu, 10 Aug 2023 08:41:31 -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 1qU4yi-00019H-AZ for qemu-devel@nongnu.org; Thu, 10 Aug 2023 08:41:24 -0400 Received: from mail.loongson.cn ([114.242.206.163]) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1qU4yf-00044Y-Us for qemu-devel@nongnu.org; Thu, 10 Aug 2023 08:41:24 -0400 Received: from loongson.cn (unknown [10.2.5.185]) by gateway (Coremail) with SMTP id _____8Dxg_Ds2tRkd6sUAA--.44860S3; Thu, 10 Aug 2023 20:41:16 +0800 (CST) Received: from localhost.localdomain (unknown [10.2.5.185]) by localhost.localdomain (Coremail) with SMTP id AQAAf8Ax3c7o2tRkoiNTAA--.11480S8; Thu, 10 Aug 2023 20:41:15 +0800 (CST) From: Song Gao To: qemu-devel@nongnu.org Cc: richard.henderson@linaro.org, philmd@linaro.org, maobibo@loongson.cn, yangxiaojuan@loongson.cn Subject: [PATCH v1 6/6] target/loongarch: Add REQUIRE_IOCSR macro to check IOCSR instructions Date: Thu, 10 Aug 2023 20:41:12 +0800 Message-Id: <20230810124112.236640-7-gaosong@loongson.cn> X-Mailer: git-send-email 2.39.1 In-Reply-To: <20230810124112.236640-1-gaosong@loongson.cn> References: <20230810124112.236640-1-gaosong@loongson.cn> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-CM-TRANSID: AQAAf8Ax3c7o2tRkoiNTAA--.11480S8 X-CM-SenderInfo: 5jdr20tqj6z05rqj20fqof0/ 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=gaosong@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, 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: 1691671355094100005 Content-Type: text/plain; charset="utf-8" Signed-off-by: Song Gao --- target/loongarch/cpu.h | 2 ++ target/loongarch/insn_trans/trans_privileged.c.inc | 8 ++++++++ 2 files changed, 10 insertions(+) diff --git a/target/loongarch/cpu.h b/target/loongarch/cpu.h index 19d2a28a47..69a3ab16ee 100644 --- a/target/loongarch/cpu.h +++ b/target/loongarch/cpu.h @@ -465,6 +465,7 @@ static inline void set_pc(CPULoongArchState *env, uint6= 4_t value) #define HW_FLAGS_LSPW 0x200 #define HW_FLAGS_LAM 0x400 #define HW_FLAGS_LSX 0x800 +#define HW_FLAGS_IOCSR 0x2000 =20 static inline void cpu_get_tb_cpu_state(CPULoongArchState *env, vaddr *pc, uint64_t *cs_base, uint32_t *flags) @@ -481,6 +482,7 @@ static inline void cpu_get_tb_cpu_state(CPULoongArchSta= te *env, vaddr *pc, *flags |=3D FIELD_EX32(env->cpucfg[2], CPUCFG2, LSPW) * HW_FLAGS_LSPW; *flags |=3D FIELD_EX32(env->cpucfg[2], CPUCFG2, LAM) * HW_FLAGS_LAM; *flags |=3D FIELD_EX32(env->cpucfg[2], CPUCFG2, LSX) * HW_FLAGS_LSX; + *flags |=3D FIELD_EX32(env->cpucfg[1], CPUCFG1, IOCSR) * HW_FLAGS_IOCS= R; } =20 void loongarch_cpu_list(void); diff --git a/target/loongarch/insn_trans/trans_privileged.c.inc b/target/lo= ongarch/insn_trans/trans_privileged.c.inc index 210678dbb8..78badf4bbb 100644 --- a/target/loongarch/insn_trans/trans_privileged.c.inc +++ b/target/loongarch/insn_trans/trans_privileged.c.inc @@ -286,12 +286,19 @@ static bool trans_csrxchg(DisasContext *ctx, arg_csrx= chg *a) return true; } =20 +#define REQUIRE_IOCSR do { \ + if ((ctx->base.tb->flags & HW_FLAGS_IOCSR) =3D=3D 0) { \ + return false; \ + } \ +} while (0) + static bool gen_iocsrrd(DisasContext *ctx, arg_rr *a, void (*func)(TCGv, TCGv_ptr, TCGv)) { TCGv dest =3D gpr_dst(ctx, a->rd, EXT_NONE); TCGv src1 =3D gpr_src(ctx, a->rj, EXT_NONE); =20 + REQUIRE_IOCSR; if (check_plv(ctx)) { return false; } @@ -305,6 +312,7 @@ static bool gen_iocsrwr(DisasContext *ctx, arg_rr *a, TCGv val =3D gpr_src(ctx, a->rd, EXT_NONE); TCGv addr =3D gpr_src(ctx, a->rj, EXT_NONE); =20 + REQUIRE_IOCSR; if (check_plv(ctx)) { return false; } --=20 2.39.1