From nobody Mon Nov 25 09:50:58 2024 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 1716776737580359.98469279252754; Sun, 26 May 2024 19:25:37 -0700 (PDT) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1sBQ1z-0000sL-F8; Sun, 26 May 2024 22:24:11 -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 1sBQ1v-0000po-Iu; Sun, 26 May 2024 22:24:08 -0400 Received: from azure-sdnproxy.icoremail.net ([52.237.72.81]) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1sBQ1t-0003md-Rg; Sun, 26 May 2024 22:24:07 -0400 Received: from localhost.localdomain (unknown [10.12.130.31]) by app1 (Coremail) with SMTP id TAJkCgAXrOM07lNmsQANAA--.24375S7; Mon, 27 May 2024 10:21:45 +0800 (CST) From: Chao Du To: qemu-devel@nongnu.org, qemu-riscv@nongnu.org, pbonzini@redhat.com, alistair23@gmail.com, bin.meng@windriver.com, liweiwei@iscas.ac.cn, dbarboza@ventanamicro.com, zhiwei_liu@linux.alibaba.com, palmer@dabbelt.com, anup@brainfault.org, duchao713@qq.com Subject: [PATCH v1 3/4] target/riscv/kvm: handle the exit with debug reason Date: Mon, 27 May 2024 02:19:15 +0000 Message-Id: <20240527021916.12953-4-duchao@eswincomputing.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20240527021916.12953-1-duchao@eswincomputing.com> References: <20240527021916.12953-1-duchao@eswincomputing.com> X-CM-TRANSID: TAJkCgAXrOM07lNmsQANAA--.24375S7 X-Coremail-Antispam: 1UD129KBjvJXoWrtrWUXrWxKF45Jw1UGFyrtFb_yoW8JF18pF 45CayYkrs3J347Gw4SyFWkAF13Aws7urs8J3y7Wayfta1aqrWrWr1vg3yayFWrGFWfuF1a yF43ZF13uF4Utr7anT9S1TB71UUUUUUqnTZGkaVYY2UrUUUUjbIjqfuFe4nvWSU5nxnvy2 9KBjDU0xBIdaVrnRJUUUPIb7Iv0xC_Zr1lb4IE77IF4wAFF20E14v26rWj6s0DM7CY07I2 0VC2zVCF04k26cxKx2IYs7xG6rWj6s0DM7CIcVAFz4kK6r1j6r18M28IrcIa0xkI8VA2jI 8067AKxVWUWwA2048vs2IY020Ec7CjxVAFwI0_Xr0E3s1l8cAvFVAK0II2c7xJM28CjxkF 64kEwVA0rcxSw2x7M28EF7xvwVC0I7IYx2IY67AKxVWDJVCq3wA2z4x0Y4vE2Ix0cI8IcV CY1x0267AKxVW8Jr0_Cr1UM28EF7xvwVC2z280aVAFwI0_GcCE3s1l84ACjcxK6I8E87Iv 6xkF7I0E14v26rxl6s0DM2AIxVAIcxkEcVAq07x20xvEncxIr21l5I8CrVACY4xI64kE6c 02F40Ex7xfMcIj6xIIjxv20xvE14v26r1j6r18McIj6I8E87Iv67AKxVWUJVW8JwAm72CE 4IkC6x0Yz7v_Jr0_Gr1lF7xvr2IYc2Ij64vIr41lFIxGxcIEc7CjxVA2Y2ka0xkIwI1lc2 xSY4AK6svPMxAIw28IcxkI7VAKI48JMxC20s026xCaFVCjc4AY6r1j6r4UMI8I3I0E5I8C rVAFwI0_Jr0_Jr4lx2IqxVCjr7xvwVAFwI0_JrI_JrWlx4CE17CEb7AF67AKxVWUtVW8Zw CIc40Y0x0EwIxGrwCI42IY6xIIjxv20xvE14v26r1j6r1xMIIF0xvE2Ix0cI8IcVCY1x02 67AKxVWxJVW8Jr1lIxAIcVCF04k26cxKx2IYs7xG6r1j6r1xMIIF0xvEx4A2jsIE14v26r 1j6r4UMIIF0xvEx4A2jsIEc7CjxVAFwI0_Gr0_Gr1UYxBIdaVFxhVjvjDU0xZFpf9x07je VbkUUUUU= X-CM-SenderInfo: xgxfxt3r6h245lqf0zpsxwx03jof0z/ 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=52.237.72.81; envelope-from=duchao@eswincomputing.com; helo=azure-sdnproxy.icoremail.net X-Spam_score_int: -25 X-Spam_score: -2.6 X-Spam_bar: -- X-Spam_report: (-2.6 / 5.0 requ) BAYES_00=-1.9, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H2=-0.001, SPF_HELO_NONE=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+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZM-MESSAGEID: 1716776739337100003 Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" If the breakpoint belongs to the userspace then set the ret value. Signed-off-by: Chao Du Reviewed-by: Andrew Jones Reviewed-by: Daniel Henrique Barboza --- target/riscv/kvm/kvm-cpu.c | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) diff --git a/target/riscv/kvm/kvm-cpu.c b/target/riscv/kvm/kvm-cpu.c index 0bc3348b91..0c45e520b2 100644 --- a/target/riscv/kvm/kvm-cpu.c +++ b/target/riscv/kvm/kvm-cpu.c @@ -1555,6 +1555,21 @@ static int kvm_riscv_handle_csr(CPUState *cs, struct= kvm_run *run) return ret; } =20 +static bool kvm_riscv_handle_debug(CPUState *cs) +{ + RISCVCPU *cpu =3D RISCV_CPU(cs); + CPURISCVState *env =3D &cpu->env; + + /* Ensure PC is synchronised */ + kvm_cpu_synchronize_state(cs); + + if (kvm_find_sw_breakpoint(cs, env->pc)) { + return true; + } + + return false; +} + int kvm_arch_handle_exit(CPUState *cs, struct kvm_run *run) { int ret =3D 0; @@ -1565,6 +1580,11 @@ int kvm_arch_handle_exit(CPUState *cs, struct kvm_ru= n *run) case KVM_EXIT_RISCV_CSR: ret =3D kvm_riscv_handle_csr(cs, run); break; + case KVM_EXIT_DEBUG: + if (kvm_riscv_handle_debug(cs)) { + ret =3D EXCP_DEBUG; + } + break; default: qemu_log_mask(LOG_UNIMP, "%s: un-handled exit reason %d\n", __func__, run->exit_reason); --=20 2.17.1