From patchwork Fri May 26 07:21:19 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Weiwei Li X-Patchwork-Id: 13256504 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 81B2DC77B7A for ; Fri, 26 May 2023 07:24:34 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1q2Rlt-0006Aa-9m; Fri, 26 May 2023 03:21:57 -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 1q2Rll-00062n-TJ; Fri, 26 May 2023 03:21:53 -0400 Received: from smtp25.cstnet.cn ([159.226.251.25] helo=cstnet.cn) by eggs.gnu.org with esmtps (TLS1.2:DHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.90_1) (envelope-from ) id 1q2Rlg-0002He-NM; Fri, 26 May 2023 03:21:49 -0400 Received: from localhost.localdomain (unknown [61.165.37.98]) by APP-05 (Coremail) with SMTP id zQCowACnrYn3XXBkJSddBQ--.47689S4; Fri, 26 May 2023 15:21:29 +0800 (CST) From: Weiwei Li To: qemu-riscv@nongnu.org, qemu-devel@nongnu.org Cc: palmer@dabbelt.com, alistair.francis@wdc.com, bin.meng@windriver.com, dbarboza@ventanamicro.com, zhiwei_liu@linux.alibaba.com, wangjunqiang@iscas.ac.cn, lazyparser@gmail.com, Weiwei Li , Richard Henderson Subject: [PATCH v3 2/7] target/riscv: Introduce cur_insn_len into DisasContext Date: Fri, 26 May 2023 15:21:19 +0800 Message-Id: <20230526072124.298466-3-liweiwei@iscas.ac.cn> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230526072124.298466-1-liweiwei@iscas.ac.cn> References: <20230526072124.298466-1-liweiwei@iscas.ac.cn> MIME-Version: 1.0 X-CM-TRANSID: zQCowACnrYn3XXBkJSddBQ--.47689S4 X-Coremail-Antispam: 1UD129KBjvJXoWrtry8GF15ur43Ar4rtw1xAFb_yoW8JF15pr 4Ykw42krW5JFW3Ca4UGF4UXr17Ga15Kr4UX34vvw4fXa13X395CFWDKayj9F4UZF40gFyj yrWqkrWrAF4jvF7anT9S1TB71UUUUUUqnTZGkaVYY2UrUUUUjbIjqfuFe4nvWSU5nxnvy2 9KBjDU0xBIdaVrnRJUUUPC14x267AKxVWrJVCq3wAFc2x0x2IEx4CE42xK8VAvwI8IcIk0 rVWrJVCq3wAFIxvE14AKwVWUJVWUGwA2048vs2IY020E87I2jVAFwI0_Jryl82xGYIkIc2 x26xkF7I0E14v26ryj6s0DM28lY4IEw2IIxxk0rwA2F7IY1VAKz4vEj48ve4kI8wA2z4x0 Y4vE2Ix0cI8IcVAFwI0_Gr0_Xr1l84ACjcxK6xIIjxv20xvEc7CjxVAFwI0_Gr0_Cr1l84 ACjcxK6I8E87Iv67AKxVW8Jr0_Cr1UM28EF7xvwVC2z280aVCY1x0267AKxVWxJr0_GcWl e2I262IYc4CY6c8Ij28IcVAaY2xG8wAqx4xG64xvF2IEw4CE5I8CrVC2j2WlYx0E2Ix0cI 8IcVAFwI0_Jr0_Jr4lYx0Ex4A2jsIE14v26r1j6r4UMcvjeVCFs4IE7xkEbVWUJVW8JwAC jcxG0xvY0x0EwIxGrwACjI8F5VA0II8E6IAqYI8I648v4I1lFIxGxcIEc7CjxVA2Y2ka0x kIwI1lc2xSY4AK67AK6r4xMxAIw28IcxkI7VAKI48JMxC20s026xCaFVCjc4AY6r1j6r4U MI8I3I0E5I8CrVAFwI0_Jr0_Jr4lx2IqxVCjr7xvwVAFwI0_JrI_JrWlx4CE17CEb7AF67 AKxVWUtVW8ZwCIc40Y0x0EwIxGrwCI42IY6xIIjxv20xvE14v26r1j6r1xMIIF0xvE2Ix0 cI8IcVCY1x0267AKxVW8JVWxJwCI42IY6xAIw20EY4v20xvaj40_Jr0_JF4lIxAIcVC2z2 80aVAFwI0_Jr0_Gr1lIxAIcVC2z280aVCY1x0267AKxVW8JVW8JrUvcSsGvfC2KfnxnUUI 43ZEXa7VUb3fQtUUUUU== X-Originating-IP: [61.165.37.98] X-CM-SenderInfo: 5olzvxxzhlqxpvfd2hldfou0/ Received-SPF: pass client-ip=159.226.251.25; envelope-from=liweiwei@iscas.ac.cn; helo=cstnet.cn X-Spam_score_int: -41 X-Spam_score: -4.2 X-Spam_bar: ---- X-Spam_report: (-4.2 / 5.0 requ) BAYES_00=-1.9, RCVD_IN_DNSWL_MED=-2.3, RCVD_IN_MSPIKE_H2=-0.001, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 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+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Use cur_insn_len to store the length of the current instruction to prepare for PC-relative translation. Signed-off-by: Weiwei Li Signed-off-by: Junqiang Wang Reviewed-by: Richard Henderson Reviewed-by: Alistair Francis --- target/riscv/translate.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/target/riscv/translate.c b/target/riscv/translate.c index 1b93de66ab..9feb0a4890 100644 --- a/target/riscv/translate.c +++ b/target/riscv/translate.c @@ -59,6 +59,7 @@ typedef struct DisasContext { DisasContextBase base; /* pc_succ_insn points to the instruction following base.pc_next */ target_ulong pc_succ_insn; + target_ulong cur_insn_len; target_ulong priv_ver; RISCVMXL misa_mxl_max; RISCVMXL xl; @@ -1114,8 +1115,9 @@ static void decode_opc(CPURISCVState *env, DisasContext *ctx, uint16_t opcode) }; ctx->virt_inst_excp = false; + ctx->cur_insn_len = insn_len(opcode); /* Check for compressed insn */ - if (insn_len(opcode) == 2) { + if (ctx->cur_insn_len == 2) { ctx->opcode = opcode; ctx->pc_succ_insn = ctx->base.pc_next + 2; /*