From nobody Wed Nov 27 00:24:34 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 1703037594955850.4448262021223; Tue, 19 Dec 2023 17:59:54 -0800 (PST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rFlro-0004Fr-Ud; Tue, 19 Dec 2023 20:59:24 -0500 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 1rFlrP-0004AQ-Eh for qemu-devel@nongnu.org; Tue, 19 Dec 2023 20:59:02 -0500 Received: from mail.loongson.cn ([114.242.206.163]) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rFlrI-0000UJ-Mz for qemu-devel@nongnu.org; Tue, 19 Dec 2023 20:58:56 -0500 Received: from loongson.cn (unknown [10.2.5.185]) by gateway (Coremail) with SMTP id _____8Cx9OpaSoJlgNACAA--.9987S3; Wed, 20 Dec 2023 09:58:50 +0800 (CST) Received: from localhost.localdomain (unknown [10.2.5.185]) by localhost.localdomain (Coremail) with SMTP id AQAAf8AxIL9OSoJljk8BAA--.8666S9; Wed, 20 Dec 2023 09:58:49 +0800 (CST) From: Tianrui Zhao To: qemu-devel@nongnu.org, gaosong@loongson.cn, philmd@linaro.org, richard.henderson@linaro.org, peter.maydell@linaro.org Cc: maobibo@loongson.cn, zhaotianrui@loongson.cn, mst@redhat.com, cohuck@redhat.com, pbonzini@redhat.com, marcandre.lureau@redhat.com, berrange@redhat.com, thuth@redhat.com, yangxiaojuan@loongson.cn, xianglai li Subject: [PATCH v2 7/9] target/loongarch: Implement kvm_arch_handle_exit Date: Wed, 20 Dec 2023 09:45:43 +0800 Message-Id: <20231220014545.2889155-8-zhaotianrui@loongson.cn> X-Mailer: git-send-email 2.39.1 In-Reply-To: <20231220014545.2889155-1-zhaotianrui@loongson.cn> References: <20231220014545.2889155-1-zhaotianrui@loongson.cn> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-CM-TRANSID: AQAAf8AxIL9OSoJljk8BAA--.8666S9 X-CM-SenderInfo: p2kd03xldq233l6o00pqjv00gofq/ 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=zhaotianrui@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, 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: 1703037596429100013 Content-Type: text/plain; charset="utf-8" Implement kvm_arch_handle_exit for loongarch. In this function, the KVM_EXIT_LOONGARCH_IOCSR is handled, we read or write the iocsr address space by the addr, length and is_write argument in kvm_run. Signed-off-by: Tianrui Zhao Signed-off-by: xianglai li Reviewed-by: Richard Henderson --- target/loongarch/kvm.c | 24 +++++++++++++++++++++++- target/loongarch/trace-events | 1 + 2 files changed, 24 insertions(+), 1 deletion(-) diff --git a/target/loongarch/kvm.c b/target/loongarch/kvm.c index 85e7aeb083..d2dab3fef4 100644 --- a/target/loongarch/kvm.c +++ b/target/loongarch/kvm.c @@ -723,7 +723,29 @@ bool kvm_arch_cpu_check_are_resettable(void) =20 int kvm_arch_handle_exit(CPUState *cs, struct kvm_run *run) { - return 0; + int ret =3D 0; + LoongArchCPU *cpu =3D LOONGARCH_CPU(cs); + CPULoongArchState *env =3D &cpu->env; + MemTxAttrs attrs =3D {}; + + attrs.requester_id =3D env_cpu(env)->cpu_index; + + trace_kvm_arch_handle_exit(run->exit_reason); + switch (run->exit_reason) { + case KVM_EXIT_LOONGARCH_IOCSR: + address_space_rw(&env->address_space_iocsr, + run->iocsr_io.phys_addr, + attrs, + run->iocsr_io.data, + run->iocsr_io.len, + run->iocsr_io.is_write); + break; + default: + ret =3D -1; + warn_report("KVM: unknown exit reason %d", run->exit_reason); + break; + } + return ret; } =20 void kvm_arch_accel_class_init(ObjectClass *oc) diff --git a/target/loongarch/trace-events b/target/loongarch/trace-events index 937c3c7c0c..021839880e 100644 --- a/target/loongarch/trace-events +++ b/target/loongarch/trace-events @@ -11,3 +11,4 @@ kvm_failed_get_counter(const char *msg) "Failed to get co= unter from KVM: %s" kvm_failed_put_counter(const char *msg) "Failed to put counter into KVM: %= s" kvm_failed_get_cpucfg(const char *msg) "Failed to get cpucfg from KVM: %s" kvm_failed_put_cpucfg(const char *msg) "Failed to put cpucfg into KVM: %s" +kvm_arch_handle_exit(int num) "kvm arch handle exit, the reason number: %d" --=20 2.39.1