From patchwork Tue Apr 4 02:06:48 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Weiwei Li X-Patchwork-Id: 13199051 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 344D6C7618D for ; Tue, 4 Apr 2023 02:08:59 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1pjW4x-0002xu-0a; Mon, 03 Apr 2023 22:07:23 -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 1pjW4v-0002xB-KH; Mon, 03 Apr 2023 22:07:21 -0400 Received: from smtp25.cstnet.cn ([159.226.251.25] helo=cstnet.cn) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1pjW4t-00017l-Gw; Mon, 03 Apr 2023 22:07:21 -0400 Received: from localhost.localdomain (unknown [180.175.29.170]) by APP-05 (Coremail) with SMTP id zQCowAD3_s4+hitkdVLLDQ--.57109S3; Tue, 04 Apr 2023 10:06:55 +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 Subject: [PATCH v6 1/6] target/riscv: Fix pointer mask transformation for vector address Date: Tue, 4 Apr 2023 10:06:48 +0800 Message-Id: <20230404020653.18911-2-liweiwei@iscas.ac.cn> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230404020653.18911-1-liweiwei@iscas.ac.cn> References: <20230404020653.18911-1-liweiwei@iscas.ac.cn> MIME-Version: 1.0 X-CM-TRANSID: zQCowAD3_s4+hitkdVLLDQ--.57109S3 X-Coremail-Antispam: 1UD129KBjvdXoW7Wry8uw18tw4rtryUXFyfCrg_yoWfZFc_GF 48WFsxW3yUZa1F9FWrCrn0yryxZFykurs0vw4xJrs7GFyj9ay3CwnrKan5A3W09rZxJrnI k3ZrXrWxCr15CjkaLaAFLSUrUUUUUb8apTn2vfkv8UJUUUU8Yxn0WfASr-VFAUDa7-sFnT 9fnUUIcSsGvfJTRUUUbDkFF20E14v26ryj6rWUM7CY07I20VC2zVCF04k26cxKx2IYs7xG 6rWj6s0DM7CIcVAFz4kK6r1j6r18M28IrcIa0xkI8VA2jI8067AKxVWUGwA2048vs2IY02 0Ec7CjxVAFwI0_JFI_Gr1l8cAvFVAK0II2c7xJM28CjxkF64kEwVA0rcxSw2x7M28EF7xv wVC0I7IYx2IY67AKxVW8JVW5JwA2z4x0Y4vE2Ix0cI8IcVCY1x0267AKxVWxJVW8Jr1l84 ACjcxK6I8E87Iv67AKxVW8Jr0_Cr1UM28EF7xvwVC2z280aVCY1x0267AKxVW8Jr0_Cr1U M2AIxVAIcxkEcVAq07x20xvEncxIr21l5I8CrVACY4xI64kE6c02F40Ex7xfMcIj6xIIjx v20xvE14v26r1j6r18McIj6I8E87Iv67AKxVWUJVW8JwAm72CE4IkC6x0Yz7v_Jr0_Gr1l F7xvr2IYc2Ij64vIr41lF7I21c0EjII2zVCS5cI20VAGYxC7M4IIrI8v6xkF7I0E8cxan2 IY04v7MxAIw28IcxkI7VAKI48JMxC20s026xCaFVCjc4AY6r1j6r4UMI8I3I0E5I8CrVAF wI0_Jr0_Jr4lx2IqxVCjr7xvwVAFwI0_JrI_JrWlx4CE17CEb7AF67AKxVWUtVW8ZwCIc4 0Y0x0EwIxGrwCI42IY6xIIjxv20xvE14v26r1j6r1xMIIF0xvE2Ix0cI8IcVCY1x0267AK xVW8JVWxJwCI42IY6xAIw20EY4v20xvaj40_Jr0_JF4lIxAIcVC2z280aVAFwI0_Jr0_Gr 1lIxAIcVC2z280aVCY1x0267AKxVW8JVW8JrUvcSsGvfC2KfnxnUUI43ZEXa7VUbec_DUU UUU== X-Originating-IP: [180.175.29.170] 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, SPF_HELO_PASS=-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+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org actual_address = (requested_address & ~mpmmask) | mpmbase. Signed-off-by: Weiwei Li Signed-off-by: Junqiang Wang Reviewed-by: Daniel Henrique Barboza Reviewed-by: LIU Zhiwei Acked-by: Alistair Francis --- target/riscv/vector_helper.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/target/riscv/vector_helper.c b/target/riscv/vector_helper.c index 2423affe37..a58d82af8c 100644 --- a/target/riscv/vector_helper.c +++ b/target/riscv/vector_helper.c @@ -172,7 +172,7 @@ static inline uint32_t vext_get_total_elems(CPURISCVState *env, uint32_t desc, static inline target_ulong adjust_addr(CPURISCVState *env, target_ulong addr) { - return (addr & env->cur_pmmask) | env->cur_pmbase; + return (addr & ~env->cur_pmmask) | env->cur_pmbase; } /* From patchwork Tue Apr 4 02:06:49 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Weiwei Li X-Patchwork-Id: 13199047 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 8110FC761A6 for ; Tue, 4 Apr 2023 02:08:44 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1pjW4s-0002x1-FZ; Mon, 03 Apr 2023 22:07:18 -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 1pjW4h-0002td-Rm; Mon, 03 Apr 2023 22:07:07 -0400 Received: from smtp25.cstnet.cn ([159.226.251.25] helo=cstnet.cn) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1pjW4e-00014I-8S; Mon, 03 Apr 2023 22:07:06 -0400 Received: from localhost.localdomain (unknown [180.175.29.170]) by APP-05 (Coremail) with SMTP id zQCowAD3_s4+hitkdVLLDQ--.57109S4; Tue, 04 Apr 2023 10:06:56 +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 Subject: [PATCH v6 2/6] target/riscv: Update cur_pmmask/base when xl changes Date: Tue, 4 Apr 2023 10:06:49 +0800 Message-Id: <20230404020653.18911-3-liweiwei@iscas.ac.cn> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230404020653.18911-1-liweiwei@iscas.ac.cn> References: <20230404020653.18911-1-liweiwei@iscas.ac.cn> MIME-Version: 1.0 X-CM-TRANSID: zQCowAD3_s4+hitkdVLLDQ--.57109S4 X-Coremail-Antispam: 1UD129KBjvdXoW7GFW8XrW3uFy8uF1xGFWfZrb_yoWDWFgE9r 4IgF1kW3yjg3Z2kFWDJa4F9ry8Zry0gr1jvw1fKr15Gryj9rZrJ3Wvqwn7Jry5Zr4DJrnx AwnrXw17Cr12vjkaLaAFLSUrUUUUUb8apTn2vfkv8UJUUUU8Yxn0WfASr-VFAUDa7-sFnT 9fnUUIcSsGvfJTRUUUbDkFF20E14v26rWj6s0DM7CY07I20VC2zVCF04k26cxKx2IYs7xG 6rWj6s0DM7CIcVAFz4kK6r1j6r18M28IrcIa0xkI8VA2jI8067AKxVWUXwA2048vs2IY02 0Ec7CjxVAFwI0_Gr0_Xr1l8cAvFVAK0II2c7xJM28CjxkF64kEwVA0rcxSw2x7M28EF7xv wVC0I7IYx2IY67AKxVW8JVW5JwA2z4x0Y4vE2Ix0cI8IcVCY1x0267AKxVWxJVW8Jr1l84 ACjcxK6I8E87Iv67AKxVW8Jr0_Cr1UM28EF7xvwVC2z280aVCY1x0267AKxVW8Jr0_Cr1U M2AIxVAIcxkEcVAq07x20xvEncxIr21l5I8CrVACY4xI64kE6c02F40Ex7xfMcIj6xIIjx v20xvE14v26r1j6r18McIj6I8E87Iv67AKxVWUJVW8JwAm72CE4IkC6x0Yz7v_Jr0_Gr1l F7xvr2IYc2Ij64vIr41lF7I21c0EjII2zVCS5cI20VAGYxC7M4IIrI8v6xkF7I0E8cxan2 IY04v7MxAIw28IcxkI7VAKI48JMxC20s026xCaFVCjc4AY6r1j6r4UMI8I3I0E5I8CrVAF wI0_Jr0_Jr4lx2IqxVCjr7xvwVAFwI0_JrI_JrWlx4CE17CEb7AF67AKxVWUtVW8ZwCIc4 0Y0x0EwIxGrwCI42IY6xIIjxv20xvE14v26r1j6r1xMIIF0xvE2Ix0cI8IcVCY1x0267AK xVW8JVWxJwCI42IY6xAIw20EY4v20xvaj40_Jr0_JF4lIxAIcVC2z280aVAFwI0_Jr0_Gr 1lIxAIcVC2z280aVCY1x0267AKxVW8JVW8JrUvcSsGvfC2KfnxnUUI43ZEXa7VUjYiiDUU UUU== X-Originating-IP: [180.175.29.170] 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, SPF_HELO_PASS=-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+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org write_mstatus() can only change current xl when in debug mode. And we need update cur_pmmask/base in this case. Signed-off-by: Weiwei Li Signed-off-by: Junqiang Wang Reviewed-by: LIU Zhiwei Reviewed-by: Alistair Francis --- target/riscv/csr.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) diff --git a/target/riscv/csr.c b/target/riscv/csr.c index d522efc0b6..43b9ad4500 100644 --- a/target/riscv/csr.c +++ b/target/riscv/csr.c @@ -1277,8 +1277,15 @@ static RISCVException write_mstatus(CPURISCVState *env, int csrno, mstatus = set_field(mstatus, MSTATUS64_SXL, xl); } env->mstatus = mstatus; - env->xl = cpu_recompute_xl(env); + /* + * Except in debug mode, UXL/SXL can only be modified by higher + * privilege mode. So xl will not be changed in normal mode. + */ + if (env->debugger) { + env->xl = cpu_recompute_xl(env); + riscv_cpu_update_mask(env); + } return RISCV_EXCP_NONE; } From patchwork Tue Apr 4 02:06:50 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Weiwei Li X-Patchwork-Id: 13199050 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 118E5C76196 for ; Tue, 4 Apr 2023 02:08:53 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1pjW4n-0002uw-Ez; Mon, 03 Apr 2023 22:07:13 -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 1pjW4i-0002tv-8S; Mon, 03 Apr 2023 22:07:10 -0400 Received: from smtp25.cstnet.cn ([159.226.251.25] helo=cstnet.cn) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1pjW4e-00014X-BH; Mon, 03 Apr 2023 22:07:08 -0400 Received: from localhost.localdomain (unknown [180.175.29.170]) by APP-05 (Coremail) with SMTP id zQCowAD3_s4+hitkdVLLDQ--.57109S5; Tue, 04 Apr 2023 10:06:56 +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 v6 3/6] target/riscv: Fix target address to update badaddr Date: Tue, 4 Apr 2023 10:06:50 +0800 Message-Id: <20230404020653.18911-4-liweiwei@iscas.ac.cn> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230404020653.18911-1-liweiwei@iscas.ac.cn> References: <20230404020653.18911-1-liweiwei@iscas.ac.cn> MIME-Version: 1.0 X-CM-TRANSID: zQCowAD3_s4+hitkdVLLDQ--.57109S5 X-Coremail-Antispam: 1UD129KBjvJXoWxurykJF4kGrWxJw15Kr1rJFb_yoWrtw43pF 17Cw17urWDJFZIvayFga1jyF15Gr4SgrWUKw4Sywn5Ka13trW5CrnrtayakFyj9FZ5Xr4Y 9FZ8AF1j9w4jqa7anT9S1TB71UUUUUUqnTZGkaVYY2UrUUUUjbIjqfuFe4nvWSU5nxnvy2 9KBjDU0xBIdaVrnRJUUUPY14x267AKxVWrJVCq3wAFc2x0x2IEx4CE42xK8VAvwI8IcIk0 rVWrJVCq3wAFIxvE14AKwVWUJVWUGwA2048vs2IY020E87I2jVAFwI0_JrWl82xGYIkIc2 x26xkF7I0E14v26ryj6s0DM28lY4IEw2IIxxk0rwA2F7IY1VAKz4vEj48ve4kI8wA2z4x0 Y4vE2Ix0cI8IcVAFwI0_Xr0_Ar1l84ACjcxK6xIIjxv20xvEc7CjxVAFwI0_Cr0_Gr1UM2 8EF7xvwVC2z280aVAFwI0_Gr1j6F4UJwA2z4x0Y4vEx4A2jsIEc7CjxVAFwI0_Gr1j6F4U JwAS0I0E0xvYzxvE52x082IY62kv0487Mc02F40EFcxC0VAKzVAqx4xG6I80ewAv7VC0I7 IYx2IY67AKxVWUJVWUGwAv7VC2z280aVAFwI0_Jr0_Gr1lOx8S6xCaFVCjc4AY6r1j6r4U M4x0Y48IcxkI7VAKI48JM4x0x7Aq67IIx4CEVc8vx2IErcIFxwACI402YVCY1x02628vn2 kIc2xKxwCF04k20xvY0x0EwIxGrwCFx2IqxVCFs4IE7xkEbVWUJVW8JwC20s026c02F40E 14v26r1j6r18MI8I3I0E7480Y4vE14v26r106r1rMI8E67AF67kF1VAFwI0_Jw0_GFylIx kGc2Ij64vIr41lIxAIcVC0I7IYx2IY67AKxVWUJVWUCwCI42IY6xIIjxv20xvEc7CjxVAF wI0_Gr0_Cr1lIxAIcVCF04k26cxKx2IYs7xG6r1j6r1xMIIF0xvEx4A2jsIE14v26r1j6r 4UMIIF0xvEx4A2jsIEc7CjxVAFwI0_Gr0_Gr1UYxBIdaVFxhVjvjDU0xZFpf9x0JUd8n5U UUUU= X-Originating-IP: [180.175.29.170] 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, SPF_HELO_PASS=-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+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Compute the target address before storing it into badaddr when mis-aligned exception is triggered. Use a target_pc temp to store the target address to avoid the confusing operation that udpate target address into cpu_pc before misalign check, then update it into badaddr and restore cpu_pc to current pc if exception is triggered. Signed-off-by: Weiwei Li Signed-off-by: Junqiang Wang Reviewed-by: Richard Henderson Reviewed-by: Alistair Francis --- target/riscv/insn_trans/trans_rvi.c.inc | 23 ++++++++++++++++------- target/riscv/translate.c | 21 ++++++++++----------- 2 files changed, 26 insertions(+), 18 deletions(-) diff --git a/target/riscv/insn_trans/trans_rvi.c.inc b/target/riscv/insn_trans/trans_rvi.c.inc index 4ad54e8a49..cc72864d32 100644 --- a/target/riscv/insn_trans/trans_rvi.c.inc +++ b/target/riscv/insn_trans/trans_rvi.c.inc @@ -51,25 +51,30 @@ static bool trans_jal(DisasContext *ctx, arg_jal *a) static bool trans_jalr(DisasContext *ctx, arg_jalr *a) { TCGLabel *misaligned = NULL; + TCGv target_pc = tcg_temp_new(); - tcg_gen_addi_tl(cpu_pc, get_gpr(ctx, a->rs1, EXT_NONE), a->imm); - tcg_gen_andi_tl(cpu_pc, cpu_pc, (target_ulong)-2); + tcg_gen_addi_tl(target_pc, get_gpr(ctx, a->rs1, EXT_NONE), a->imm); + tcg_gen_andi_tl(target_pc, target_pc, (target_ulong)-2); + + if (get_xl(ctx) == MXL_RV32) { + tcg_gen_ext32s_tl(target_pc, target_pc); + } - gen_set_pc(ctx, cpu_pc); if (!has_ext(ctx, RVC)) { TCGv t0 = tcg_temp_new(); misaligned = gen_new_label(); - tcg_gen_andi_tl(t0, cpu_pc, 0x2); + tcg_gen_andi_tl(t0, target_pc, 0x2); tcg_gen_brcondi_tl(TCG_COND_NE, t0, 0x0, misaligned); } gen_set_gpri(ctx, a->rd, ctx->pc_succ_insn); + tcg_gen_mov_tl(cpu_pc, target_pc); lookup_and_goto_ptr(ctx); if (misaligned) { gen_set_label(misaligned); - gen_exception_inst_addr_mis(ctx); + gen_exception_inst_addr_mis(ctx, target_pc); } ctx->base.is_jmp = DISAS_NORETURN; @@ -153,6 +158,7 @@ static bool gen_branch(DisasContext *ctx, arg_b *a, TCGCond cond) TCGLabel *l = gen_new_label(); TCGv src1 = get_gpr(ctx, a->rs1, EXT_SIGN); TCGv src2 = get_gpr(ctx, a->rs2, EXT_SIGN); + target_ulong next_pc; if (get_xl(ctx) == MXL_RV128) { TCGv src1h = get_gprh(ctx, a->rs1); @@ -169,9 +175,12 @@ static bool gen_branch(DisasContext *ctx, arg_b *a, TCGCond cond) gen_set_label(l); /* branch taken */ - if (!has_ext(ctx, RVC) && ((ctx->base.pc_next + a->imm) & 0x3)) { + next_pc = ctx->base.pc_next + a->imm; + if (!has_ext(ctx, RVC) && (next_pc & 0x3)) { /* misaligned */ - gen_exception_inst_addr_mis(ctx); + TCGv target_pc = tcg_temp_new(); + gen_pc_plus_diff(target_pc, ctx, next_pc); + gen_exception_inst_addr_mis(ctx, target_pc); } else { gen_goto_tb(ctx, 0, ctx->base.pc_next + a->imm); } diff --git a/target/riscv/translate.c b/target/riscv/translate.c index 0ee8ee147d..d434fedb37 100644 --- a/target/riscv/translate.c +++ b/target/riscv/translate.c @@ -222,21 +222,18 @@ static void decode_save_opc(DisasContext *ctx) ctx->insn_start = NULL; } -static void gen_set_pc_imm(DisasContext *ctx, target_ulong dest) +static void gen_pc_plus_diff(TCGv target, DisasContext *ctx, + target_ulong dest) { if (get_xl(ctx) == MXL_RV32) { dest = (int32_t)dest; } - tcg_gen_movi_tl(cpu_pc, dest); + tcg_gen_movi_tl(target, dest); } -static void gen_set_pc(DisasContext *ctx, TCGv dest) +static void gen_set_pc_imm(DisasContext *ctx, target_ulong dest) { - if (get_xl(ctx) == MXL_RV32) { - tcg_gen_ext32s_tl(cpu_pc, dest); - } else { - tcg_gen_mov_tl(cpu_pc, dest); - } + gen_pc_plus_diff(cpu_pc, ctx, dest); } static void generate_exception(DisasContext *ctx, int excp) @@ -257,9 +254,9 @@ static void gen_exception_illegal(DisasContext *ctx) } } -static void gen_exception_inst_addr_mis(DisasContext *ctx) +static void gen_exception_inst_addr_mis(DisasContext *ctx, TCGv target) { - tcg_gen_st_tl(cpu_pc, cpu_env, offsetof(CPURISCVState, badaddr)); + tcg_gen_st_tl(target, cpu_env, offsetof(CPURISCVState, badaddr)); generate_exception(ctx, RISCV_EXCP_INST_ADDR_MIS); } @@ -551,7 +548,9 @@ static void gen_jal(DisasContext *ctx, int rd, target_ulong imm) next_pc = ctx->base.pc_next + imm; if (!has_ext(ctx, RVC)) { if ((next_pc & 0x3) != 0) { - gen_exception_inst_addr_mis(ctx); + TCGv target_pc = tcg_temp_new(); + gen_pc_plus_diff(target_pc, ctx, next_pc); + gen_exception_inst_addr_mis(ctx, target_pc); return; } } From patchwork Tue Apr 4 02:06:51 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Weiwei Li X-Patchwork-Id: 13199048 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 79B2BC7618D for ; Tue, 4 Apr 2023 02:08:44 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1pjW50-0002zX-DK; Mon, 03 Apr 2023 22:07:26 -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 1pjW4x-0002xw-7c; Mon, 03 Apr 2023 22:07:23 -0400 Received: from smtp25.cstnet.cn ([159.226.251.25] helo=cstnet.cn) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1pjW4u-000181-5T; Mon, 03 Apr 2023 22:07:22 -0400 Received: from localhost.localdomain (unknown [180.175.29.170]) by APP-05 (Coremail) with SMTP id zQCowAD3_s4+hitkdVLLDQ--.57109S6; Tue, 04 Apr 2023 10:06:57 +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 v6 4/6] target/riscv: Add support for PC-relative translation Date: Tue, 4 Apr 2023 10:06:51 +0800 Message-Id: <20230404020653.18911-5-liweiwei@iscas.ac.cn> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230404020653.18911-1-liweiwei@iscas.ac.cn> References: <20230404020653.18911-1-liweiwei@iscas.ac.cn> MIME-Version: 1.0 X-CM-TRANSID: zQCowAD3_s4+hitkdVLLDQ--.57109S6 X-Coremail-Antispam: 1UD129KBjvJXoWxtFy3Jw48WFykuFy5Kr1xZrb_yoW3tF45pF 1fCr42vFWDJFWrZayrWF4UAF45Xa1SkrW0kw1fKw4kKF43trWUGa1DKayakFWUuFZ5ur1Y yFZ8AFyUZw4jqFDanT9S1TB71UUUUUUqnTZGkaVYY2UrUUUUjbIjqfuFe4nvWSU5nxnvy2 9KBjDU0xBIdaVrnRJUUUPI14x267AKxVWrJVCq3wAFc2x0x2IEx4CE42xK8VAvwI8IcIk0 rVWrJVCq3wAFIxvE14AKwVWUJVWUGwA2048vs2IY020E87I2jVAFwI0_JF0E3s1l82xGYI kIc2x26xkF7I0E14v26ryj6s0DM28lY4IEw2IIxxk0rwA2F7IY1VAKz4vEj48ve4kI8wA2 z4x0Y4vE2Ix0cI8IcVAFwI0_Xr0_Ar1l84ACjcxK6xIIjxv20xvEc7CjxVAFwI0_Cr0_Gr 1UM28EF7xvwVC2z280aVAFwI0_Gr1j6F4UJwA2z4x0Y4vEx4A2jsIEc7CjxVAFwI0_Cr1j 6rxdM2AIxVAIcxkEcVAq07x20xvEncxIr21l5I8CrVACY4xI64kE6c02F40Ex7xfMcIj6x IIjxv20xvE14v26r1j6r18McIj6I8E87Iv67AKxVWUJVW8JwAm72CE4IkC6x0Yz7v_Jr0_ Gr1lF7xvr2IYc2Ij64vIr41lF7I21c0EjII2zVCS5cI20VAGYxC7M4IIrI8v6xkF7I0E8c xan2IY04v7MxAIw28IcxkI7VAKI48JMxC20s026xCaFVCjc4AY6r1j6r4UMI8I3I0E5I8C rVAFwI0_Jr0_Jr4lx2IqxVCjr7xvwVAFwI0_JrI_JrWlx4CE17CEb7AF67AKxVWUtVW8Zw CIc40Y0x0EwIxGrwCI42IY6xIIjxv20xvE14v26r1j6r1xMIIF0xvE2Ix0cI8IcVCY1x02 67AKxVWxJVW8Jr1lIxAIcVCF04k26cxKx2IYs7xG6r1j6r1xMIIF0xvEx4A2jsIE14v26r 1j6r4UMIIF0xvEx4A2jsIEc7CjxVAFwI0_Gr0_Gr1UYxBIdaVFxhVjvjDU0xZFpf9x0JUQ SdkUUUUU= X-Originating-IP: [180.175.29.170] 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, SPF_HELO_PASS=-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+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Add a base pc_save for PC-relative translation(CF_PCREL). Diable the directly sync pc from tb by riscv_cpu_synchronize_from_tb. We can get pc-relative address from following formula: real_pc = (old)env->pc + diff, where diff = target_pc - ctx->pc_save. Use gen_get_target_pc to compute target address of auipc and successor address of jalr and jal. The existence of CF_PCREL can improve performance with the guest kernel's address space randomization. Each guest process maps libc.so (et al) at a different virtual address, and this allows those translations to be shared. Signed-off-by: Weiwei Li Signed-off-by: Junqiang Wang Reviewed-by: Richard Henderson --- target/riscv/cpu.c | 29 +++++++++------ target/riscv/insn_trans/trans_rvi.c.inc | 14 ++++++-- target/riscv/translate.c | 48 ++++++++++++++++++++----- 3 files changed, 70 insertions(+), 21 deletions(-) diff --git a/target/riscv/cpu.c b/target/riscv/cpu.c index 1e97473af2..646fa31a59 100644 --- a/target/riscv/cpu.c +++ b/target/riscv/cpu.c @@ -658,16 +658,18 @@ static vaddr riscv_cpu_get_pc(CPUState *cs) static void riscv_cpu_synchronize_from_tb(CPUState *cs, const TranslationBlock *tb) { - RISCVCPU *cpu = RISCV_CPU(cs); - CPURISCVState *env = &cpu->env; - RISCVMXL xl = FIELD_EX32(tb->flags, TB_FLAGS, XL); + if (!(tb_cflags(tb) & CF_PCREL)) { + RISCVCPU *cpu = RISCV_CPU(cs); + CPURISCVState *env = &cpu->env; + RISCVMXL xl = FIELD_EX32(tb->flags, TB_FLAGS, XL); - tcg_debug_assert(!(cs->tcg_cflags & CF_PCREL)); + tcg_debug_assert(!(cs->tcg_cflags & CF_PCREL)); - if (xl == MXL_RV32) { - env->pc = (int32_t) tb->pc; - } else { - env->pc = tb->pc; + if (xl == MXL_RV32) { + env->pc = (int32_t) tb->pc; + } else { + env->pc = tb->pc; + } } } @@ -693,11 +695,18 @@ static void riscv_restore_state_to_opc(CPUState *cs, RISCVCPU *cpu = RISCV_CPU(cs); CPURISCVState *env = &cpu->env; RISCVMXL xl = FIELD_EX32(tb->flags, TB_FLAGS, XL); + target_ulong pc; + + if (tb_cflags(tb) & CF_PCREL) { + pc = (env->pc & TARGET_PAGE_MASK) | data[0]; + } else { + pc = data[0]; + } if (xl == MXL_RV32) { - env->pc = (int32_t)data[0]; + env->pc = (int32_t)pc; } else { - env->pc = data[0]; + env->pc = pc; } env->bins = data[1]; } diff --git a/target/riscv/insn_trans/trans_rvi.c.inc b/target/riscv/insn_trans/trans_rvi.c.inc index cc72864d32..7cbbdac5aa 100644 --- a/target/riscv/insn_trans/trans_rvi.c.inc +++ b/target/riscv/insn_trans/trans_rvi.c.inc @@ -38,7 +38,9 @@ static bool trans_lui(DisasContext *ctx, arg_lui *a) static bool trans_auipc(DisasContext *ctx, arg_auipc *a) { - gen_set_gpri(ctx, a->rd, a->imm + ctx->base.pc_next); + TCGv target_pc = dest_gpr(ctx, a->rd); + gen_pc_plus_diff(target_pc, ctx, a->imm + ctx->base.pc_next); + gen_set_gpr(ctx, a->rd, target_pc); return true; } @@ -52,6 +54,7 @@ static bool trans_jalr(DisasContext *ctx, arg_jalr *a) { TCGLabel *misaligned = NULL; TCGv target_pc = tcg_temp_new(); + TCGv succ_pc = dest_gpr(ctx, a->rd); tcg_gen_addi_tl(target_pc, get_gpr(ctx, a->rs1, EXT_NONE), a->imm); tcg_gen_andi_tl(target_pc, target_pc, (target_ulong)-2); @@ -68,7 +71,9 @@ static bool trans_jalr(DisasContext *ctx, arg_jalr *a) tcg_gen_brcondi_tl(TCG_COND_NE, t0, 0x0, misaligned); } - gen_set_gpri(ctx, a->rd, ctx->pc_succ_insn); + gen_pc_plus_diff(succ_pc, ctx, ctx->pc_succ_insn); + gen_set_gpr(ctx, a->rd, succ_pc); + tcg_gen_mov_tl(cpu_pc, target_pc); lookup_and_goto_ptr(ctx); @@ -159,6 +164,7 @@ static bool gen_branch(DisasContext *ctx, arg_b *a, TCGCond cond) TCGv src1 = get_gpr(ctx, a->rs1, EXT_SIGN); TCGv src2 = get_gpr(ctx, a->rs2, EXT_SIGN); target_ulong next_pc; + target_ulong orig_pc_save = ctx->pc_save; if (get_xl(ctx) == MXL_RV128) { TCGv src1h = get_gprh(ctx, a->rs1); @@ -175,6 +181,7 @@ static bool gen_branch(DisasContext *ctx, arg_b *a, TCGCond cond) gen_set_label(l); /* branch taken */ + ctx->pc_save = orig_pc_save; next_pc = ctx->base.pc_next + a->imm; if (!has_ext(ctx, RVC) && (next_pc & 0x3)) { /* misaligned */ @@ -182,8 +189,9 @@ static bool gen_branch(DisasContext *ctx, arg_b *a, TCGCond cond) gen_pc_plus_diff(target_pc, ctx, next_pc); gen_exception_inst_addr_mis(ctx, target_pc); } else { - gen_goto_tb(ctx, 0, ctx->base.pc_next + a->imm); + gen_goto_tb(ctx, 0, next_pc); } + ctx->pc_save = -1; ctx->base.is_jmp = DISAS_NORETURN; return true; diff --git a/target/riscv/translate.c b/target/riscv/translate.c index d434fedb37..4623749602 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 pc_save; target_ulong priv_ver; RISCVMXL misa_mxl_max; RISCVMXL xl; @@ -225,15 +226,24 @@ static void decode_save_opc(DisasContext *ctx) static void gen_pc_plus_diff(TCGv target, DisasContext *ctx, target_ulong dest) { - if (get_xl(ctx) == MXL_RV32) { - dest = (int32_t)dest; + assert(ctx->pc_save != -1); + if (tb_cflags(ctx->base.tb) & CF_PCREL) { + tcg_gen_addi_tl(target, cpu_pc, dest - ctx->pc_save); + if (get_xl(ctx) == MXL_RV32) { + tcg_gen_ext32s_tl(target, target); + } + } else { + if (get_xl(ctx) == MXL_RV32) { + dest = (int32_t)dest; + } + tcg_gen_movi_tl(target, dest); } - tcg_gen_movi_tl(target, dest); } static void gen_set_pc_imm(DisasContext *ctx, target_ulong dest) { gen_pc_plus_diff(cpu_pc, ctx, dest); + ctx->pc_save = dest; } static void generate_exception(DisasContext *ctx, int excp) @@ -287,8 +297,21 @@ static void gen_goto_tb(DisasContext *ctx, int n, target_ulong dest) * direct block chain benefits will be small. */ if (translator_use_goto_tb(&ctx->base, dest) && !ctx->itrigger) { - tcg_gen_goto_tb(n); - gen_set_pc_imm(ctx, dest); + /* + * For pcrel, the pc must always be up-to-date on entry to + * the linked TB, so that it can use simple additions for all + * further adjustments. For !pcrel, the linked TB is compiled + * to know its full virtual address, so we can delay the + * update to pc to the unlinked path. A long chain of links + * can thus avoid many updates to the PC. + */ + if (tb_cflags(ctx->base.tb) & CF_PCREL) { + gen_set_pc_imm(ctx, dest); + tcg_gen_goto_tb(n); + } else { + tcg_gen_goto_tb(n); + gen_set_pc_imm(ctx, dest); + } tcg_gen_exit_tb(ctx->base.tb, n); } else { gen_set_pc_imm(ctx, dest); @@ -543,6 +566,7 @@ static void gen_set_fpr_d(DisasContext *ctx, int reg_num, TCGv_i64 t) static void gen_jal(DisasContext *ctx, int rd, target_ulong imm) { target_ulong next_pc; + TCGv succ_pc = dest_gpr(ctx, rd); /* check misaligned: */ next_pc = ctx->base.pc_next + imm; @@ -555,8 +579,10 @@ static void gen_jal(DisasContext *ctx, int rd, target_ulong imm) } } - gen_set_gpri(ctx, rd, ctx->pc_succ_insn); - gen_goto_tb(ctx, 0, ctx->base.pc_next + imm); /* must use this for safety */ + gen_pc_plus_diff(succ_pc, ctx, ctx->pc_succ_insn); + gen_set_gpr(ctx, rd, succ_pc); + + gen_goto_tb(ctx, 0, next_pc); /* must use this for safety */ ctx->base.is_jmp = DISAS_NORETURN; } @@ -1150,6 +1176,7 @@ static void riscv_tr_init_disas_context(DisasContextBase *dcbase, CPUState *cs) RISCVCPU *cpu = RISCV_CPU(cs); uint32_t tb_flags = ctx->base.tb->flags; + ctx->pc_save = ctx->base.pc_first; ctx->pc_succ_insn = ctx->base.pc_first; ctx->mem_idx = FIELD_EX32(tb_flags, TB_FLAGS, MEM_IDX); ctx->mstatus_fs = tb_flags & TB_FLAGS_MSTATUS_FS; @@ -1195,8 +1222,13 @@ static void riscv_tr_tb_start(DisasContextBase *db, CPUState *cpu) static void riscv_tr_insn_start(DisasContextBase *dcbase, CPUState *cpu) { DisasContext *ctx = container_of(dcbase, DisasContext, base); + target_ulong pc_next = ctx->base.pc_next; + + if (tb_cflags(dcbase->tb) & CF_PCREL) { + pc_next &= ~TARGET_PAGE_MASK; + } - tcg_gen_insn_start(ctx->base.pc_next, 0); + tcg_gen_insn_start(pc_next, 0); ctx->insn_start = tcg_last_op(); } From patchwork Tue Apr 4 02:06:52 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Weiwei Li X-Patchwork-Id: 13199053 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 4AB4CC761A6 for ; Tue, 4 Apr 2023 02:09:04 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1pjW4r-0002wg-P4; Mon, 03 Apr 2023 22:07:17 -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 1pjW4i-0002ts-7K; Mon, 03 Apr 2023 22:07:08 -0400 Received: from smtp25.cstnet.cn ([159.226.251.25] helo=cstnet.cn) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1pjW4e-00014V-Bm; Mon, 03 Apr 2023 22:07:07 -0400 Received: from localhost.localdomain (unknown [180.175.29.170]) by APP-05 (Coremail) with SMTP id zQCowAD3_s4+hitkdVLLDQ--.57109S7; Tue, 04 Apr 2023 10:06:58 +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 v6 5/6] target/riscv: Enable PC-relative translation in system mode Date: Tue, 4 Apr 2023 10:06:52 +0800 Message-Id: <20230404020653.18911-6-liweiwei@iscas.ac.cn> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230404020653.18911-1-liweiwei@iscas.ac.cn> References: <20230404020653.18911-1-liweiwei@iscas.ac.cn> MIME-Version: 1.0 X-CM-TRANSID: zQCowAD3_s4+hitkdVLLDQ--.57109S7 X-Coremail-Antispam: 1UD129KBjvdXoWrtF18Aw4xuw45Gr43Zr4rGrg_yoW3Cwb_Wa yI9F4kXr1UX3W09F4rAr45Gr1rC348XFy0gFWxtas5CFWj9r97Aa4DKrZ7Xw18urZ3AF9x Aas7Jr9rCr4UGjkaLaAFLSUrUUUUUb8apTn2vfkv8UJUUUU8Yxn0WfASr-VFAUDa7-sFnT 9fnUUIcSsGvfJTRUUUbqkFF20E14v26rWj6s0DM7CY07I20VC2zVCF04k26cxKx2IYs7xG 6rWj6s0DM7CIcVAFz4kK6r1j6r18M28IrcIa0xkI8VA2jI8067AKxVWUAVCq3wA2048vs2 IY020Ec7CjxVAFwI0_Xr0E3s1l8cAvFVAK0II2c7xJM28CjxkF64kEwVA0rcxSw2x7M28E F7xvwVC0I7IYx2IY67AKxVW5JVW7JwA2z4x0Y4vE2Ix0cI8IcVCY1x0267AKxVW8Jr0_Cr 1UM28EF7xvwVC2z280aVAFwI0_Gr1j6F4UJwA2z4x0Y4vEx4A2jsIEc7CjxVAFwI0_Cr1j 6rxdM2AIxVAIcxkEcVAq07x20xvEncxIr21l5I8CrVACY4xI64kE6c02F40Ex7xfMcIj6x IIjxv20xvE14v26r1j6r18McIj6I8E87Iv67AKxVWUJVW8JwAm72CE4IkC6x0Yz7v_Jr0_ Gr1lF7xvr2IYc2Ij64vIr41lF7I21c0EjII2zVCS5cI20VAGYxC7M4IIrI8v6xkF7I0E8c xan2IY04v7MxAIw28IcxkI7VAKI48JMxC20s026xCaFVCjc4AY6r1j6r4UMI8I3I0E5I8C rVAFwI0_Jr0_Jr4lx2IqxVCjr7xvwVAFwI0_JrI_JrWlx4CE17CEb7AF67AKxVWUtVW8Zw CIc40Y0x0EwIxGrwCI42IY6xIIjxv20xvE14v26r1I6r4UMIIF0xvE2Ix0cI8IcVCY1x02 67AKxVWxJVW8Jr1lIxAIcVCF04k26cxKx2IYs7xG6r1j6r1xMIIF0xvEx4A2jsIE14v26r 1j6r4UMIIF0xvEx4A2jsIEc7CjxVAFwI0_Gr0_Gr1UYxBIdaVFxhVjvjDU0xZFpf9x0JUQ SdkUUUUU= X-Originating-IP: [180.175.29.170] X-CM-SenderInfo: 5olzvxxzhlqxpvfd2hldfou0/ Received-SPF: pass client-ip=159.226.251.25; 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Signed-off-by: Weiwei Li Signed-off-by: Junqiang Wang Reviewed-by: LIU Zhiwei Reviewed-by: Richard Henderson --- target/riscv/cpu.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/target/riscv/cpu.c b/target/riscv/cpu.c index 646fa31a59..3b562d5d9f 100644 --- a/target/riscv/cpu.c +++ b/target/riscv/cpu.c @@ -1193,6 +1193,8 @@ static void riscv_cpu_realize(DeviceState *dev, Error **errp) #ifndef CONFIG_USER_ONLY + cs->tcg_cflags |= CF_PCREL; + if (cpu->cfg.ext_sstc) { riscv_timer_init(cpu); } From patchwork Tue Apr 4 02:06:53 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Weiwei Li X-Patchwork-Id: 13199049 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 BD739C76196 for ; Tue, 4 Apr 2023 02:08:44 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1pjW4w-0002xs-U7; Mon, 03 Apr 2023 22:07:22 -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 1pjW4v-0002xI-TT; Mon, 03 Apr 2023 22:07:21 -0400 Received: from smtp25.cstnet.cn ([159.226.251.25] helo=cstnet.cn) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1pjW4t-00017u-QG; Mon, 03 Apr 2023 22:07:21 -0400 Received: from localhost.localdomain (unknown [180.175.29.170]) by APP-05 (Coremail) with SMTP id zQCowAD3_s4+hitkdVLLDQ--.57109S8; Tue, 04 Apr 2023 10:06:58 +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 v6 6/6] target/riscv: Add pointer mask support for instruction fetch Date: Tue, 4 Apr 2023 10:06:53 +0800 Message-Id: <20230404020653.18911-7-liweiwei@iscas.ac.cn> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230404020653.18911-1-liweiwei@iscas.ac.cn> References: <20230404020653.18911-1-liweiwei@iscas.ac.cn> MIME-Version: 1.0 X-CM-TRANSID: zQCowAD3_s4+hitkdVLLDQ--.57109S8 X-Coremail-Antispam: 1UD129KBjvJXoWxJF4DWryDKFy7JrW3Aw15CFg_yoW5uryfpr 48C3yakr4DtFZrGa43tw4Dtrn8Ja98KF4UAws7GaySy3y5JayrArn8KwnrZF1DWFWrWr12 93WDCr1UZF47ZrDanT9S1TB71UUUUUUqnTZGkaVYY2UrUUUUjbIjqfuFe4nvWSU5nxnvy2 9KBjDU0xBIdaVrnRJUUUPa14x267AKxVWrJVCq3wAFc2x0x2IEx4CE42xK8VAvwI8IcIk0 rVWrJVCq3wAFIxvE14AKwVWUJVWUGwA2048vs2IY020E87I2jVAFwI0_JF0E3s1l82xGYI kIc2x26xkF7I0E14v26ryj6s0DM28lY4IEw2IIxxk0rwA2F7IY1VAKz4vEj48ve4kI8wA2 z4x0Y4vE2Ix0cI8IcVAFwI0_Xr0_Ar1l84ACjcxK6xIIjxv20xvEc7CjxVAFwI0_Gr1j6F 4UJwA2z4x0Y4vEx4A2jsIE14v26r4UJVWxJr1l84ACjcxK6I8E87Iv6xkF7I0E14v26F4U JVW0owAS0I0E0xvYzxvE52x082IY62kv0487Mc02F40EFcxC0VAKzVAqx4xG6I80ewAv7V C0I7IYx2IY67AKxVWUJVWUGwAv7VC2z280aVAFwI0_Jr0_Gr1lOx8S6xCaFVCjc4AY6r1j 6r4UM4x0Y48IcxkI7VAKI48JM4x0x7Aq67IIx4CEVc8vx2IErcIFxwACI402YVCY1x0262 8vn2kIc2xKxwCF04k20xvY0x0EwIxGrwCFx2IqxVCFs4IE7xkEbVWUJVW8JwC20s026c02 F40E14v26r1j6r18MI8I3I0E7480Y4vE14v26r106r1rMI8E67AF67kF1VAFwI0_Jw0_GF ylIxkGc2Ij64vIr41lIxAIcVC0I7IYx2IY67AKxVWUCVW8JwCI42IY6xIIjxv20xvEc7Cj xVAFwI0_Cr0_Gr1UMIIF0xvE42xK8VAvwI8IcIk0rVWUJVWUCwCI42IY6I8E87Iv67AKxV WUJVW8JwCI42IY6I8E87Iv6xkF7I0E14v26r4j6r4UJbIYCTnIWIevJa73UjIFyTuYvjfU OBTYUUUUU X-Originating-IP: [180.175.29.170] 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, SPF_HELO_PASS=-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+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Transform the fetch address in cpu_get_tb_cpu_state() when pointer mask for instruction is enabled. Signed-off-by: Weiwei Li Signed-off-by: Junqiang Wang Reviewed-by: Richard Henderson Reviewed-by: LIU Zhiwei --- target/riscv/cpu.h | 1 + target/riscv/cpu_helper.c | 20 +++++++++++++++++++- target/riscv/csr.c | 2 -- 3 files changed, 20 insertions(+), 3 deletions(-) diff --git a/target/riscv/cpu.h b/target/riscv/cpu.h index 638e47c75a..57bd9c3279 100644 --- a/target/riscv/cpu.h +++ b/target/riscv/cpu.h @@ -368,6 +368,7 @@ struct CPUArchState { #endif target_ulong cur_pmmask; target_ulong cur_pmbase; + bool cur_pminsn; /* Fields from here on are preserved across CPU reset. */ QEMUTimer *stimer; /* Internal timer for S-mode interrupt */ diff --git a/target/riscv/cpu_helper.c b/target/riscv/cpu_helper.c index f88c503cf4..b683a770fe 100644 --- a/target/riscv/cpu_helper.c +++ b/target/riscv/cpu_helper.c @@ -40,6 +40,19 @@ int riscv_cpu_mmu_index(CPURISCVState *env, bool ifetch) #endif } +static target_ulong adjust_pc_address(CPURISCVState *env, target_ulong pc) +{ + target_ulong adjust_pc = pc; + + if (env->cur_pminsn) { + adjust_pc = (adjust_pc & ~env->cur_pmmask) | env->cur_pmbase; + } else if (env->xl == MXL_RV32) { + adjust_pc &= UINT32_MAX; + } + + return adjust_pc; +} + void cpu_get_tb_cpu_state(CPURISCVState *env, target_ulong *pc, target_ulong *cs_base, uint32_t *pflags) { @@ -48,7 +61,7 @@ void cpu_get_tb_cpu_state(CPURISCVState *env, target_ulong *pc, uint32_t flags = 0; - *pc = env->xl == MXL_RV32 ? env->pc & UINT32_MAX : env->pc; + *pc = adjust_pc_address(env, env->pc); *cs_base = 0; if (cpu->cfg.ext_zve32f) { @@ -124,6 +137,7 @@ void cpu_get_tb_cpu_state(CPURISCVState *env, target_ulong *pc, void riscv_cpu_update_mask(CPURISCVState *env) { target_ulong mask = -1, base = 0; + bool insn = false; /* * TODO: Current RVJ spec does not specify * how the extension interacts with XLEN. @@ -135,18 +149,21 @@ void riscv_cpu_update_mask(CPURISCVState *env) if (env->mmte & M_PM_ENABLE) { mask = env->mpmmask; base = env->mpmbase; + insn = env->mmte & MMTE_M_PM_INSN; } break; case PRV_S: if (env->mmte & S_PM_ENABLE) { mask = env->spmmask; base = env->spmbase; + insn = env->mmte & MMTE_S_PM_INSN; } break; case PRV_U: if (env->mmte & U_PM_ENABLE) { mask = env->upmmask; base = env->upmbase; + insn = env->mmte & MMTE_U_PM_INSN; } break; default: @@ -161,6 +178,7 @@ void riscv_cpu_update_mask(CPURISCVState *env) env->cur_pmmask = mask; env->cur_pmbase = base; } + env->cur_pminsn = insn; } #ifndef CONFIG_USER_ONLY diff --git a/target/riscv/csr.c b/target/riscv/csr.c index 43b9ad4500..0902b64129 100644 --- a/target/riscv/csr.c +++ b/target/riscv/csr.c @@ -3518,8 +3518,6 @@ static RISCVException write_mmte(CPURISCVState *env, int csrno, /* for machine mode pm.current is hardwired to 1 */ wpri_val |= MMTE_M_PM_CURRENT; - /* hardwiring pm.instruction bit to 0, since it's not supported yet */ - wpri_val &= ~(MMTE_M_PM_INSN | MMTE_S_PM_INSN | MMTE_U_PM_INSN); env->mmte = wpri_val | PM_EXT_DIRTY; riscv_cpu_update_mask(env);