From patchwork Mon Feb 24 03:27:49 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Bibo Mao X-Patchwork-Id: 13987384 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 D561DC021B2 for ; Mon, 24 Feb 2025 03:30:06 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1tmP8o-00013w-0V; Sun, 23 Feb 2025 22:28:22 -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 1tmP8d-00012J-Pn for qemu-devel@nongnu.org; Sun, 23 Feb 2025 22:28:16 -0500 Received: from mail.loongson.cn ([114.242.206.163]) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1tmP8Z-0004V6-OG for qemu-devel@nongnu.org; Sun, 23 Feb 2025 22:28:11 -0500 Received: from loongson.cn (unknown [10.2.5.213]) by gateway (Coremail) with SMTP id _____8AxquA+57tnLF2AAA--.46997S3; Mon, 24 Feb 2025 11:27:58 +0800 (CST) Received: from localhost.localdomain (unknown [10.2.5.213]) by front1 (Coremail) with SMTP id qMiowMDx_MQ857tnVqMlAA--.6451S3; Mon, 24 Feb 2025 11:27:57 +0800 (CST) From: Bibo Mao To: Song Gao Cc: qemu-devel@nongnu.org, lixianglai Subject: [PATCH v2 1/8] target/loongarch: Add post init function for kvm mode Date: Mon, 24 Feb 2025 11:27:49 +0800 Message-Id: <20250224032756.809994-2-maobibo@loongson.cn> X-Mailer: git-send-email 2.39.3 In-Reply-To: <20250224032756.809994-1-maobibo@loongson.cn> References: <20250224032756.809994-1-maobibo@loongson.cn> MIME-Version: 1.0 X-CM-TRANSID: qMiowMDx_MQ857tnVqMlAA--.6451S3 X-CM-SenderInfo: xpdruxter6z05rqj20fqof0/ X-Coremail-Antispam: 1Uk129KBjDUn29KB7ZKAUJUUUUU529EdanIXcx71UUUUU7KY7 ZEXasCq-sGcSsGvfJ3UbIjqfuFe4nvWSU5nxnvy29KBjDU0xBIdaVrnUUvcSsGvfC2Kfnx nUUI43ZEXa7xR_UUUUUUUUU== Received-SPF: pass client-ip=114.242.206.163; envelope-from=maobibo@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, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, RCVD_IN_VALIDITY_SAFE_BLOCKED=0.001, 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+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Some features such as LBT and PMU are implemented in kvm mode, With para-virt features in future, post init function is added for kvm mode, so that property for these features will be created in kvm post init function. Signed-off-by: Bibo Mao --- target/loongarch/cpu.c | 2 +- target/loongarch/cpu.h | 8 ++++++++ target/loongarch/kvm/kvm.c | 4 ++++ 3 files changed, 13 insertions(+), 1 deletion(-) diff --git a/target/loongarch/cpu.c b/target/loongarch/cpu.c index e91f4a5239..40f753167f 100644 --- a/target/loongarch/cpu.c +++ b/target/loongarch/cpu.c @@ -759,7 +759,7 @@ void loongarch_cpu_post_init(Object *obj) loongarch_set_pmu); object_property_set_description(obj, "pmu", "Set off to performance monitor unit."); - + kvm_loongarch_cpu_post_init(cpu); } else { cpu->lbt = ON_OFF_AUTO_OFF; cpu->pmu = ON_OFF_AUTO_OFF; diff --git a/target/loongarch/cpu.h b/target/loongarch/cpu.h index f2a23b7a43..dd759a562f 100644 --- a/target/loongarch/cpu.h +++ b/target/loongarch/cpu.h @@ -491,4 +491,12 @@ static inline void cpu_get_tb_cpu_state(CPULoongArchState *env, vaddr *pc, void loongarch_cpu_post_init(Object *obj); +#ifdef CONFIG_USER_ONLY +static inline void kvm_loongarch_cpu_post_init(LoongArchCPU *cpu) +{ +} +#else +void kvm_loongarch_cpu_post_init(LoongArchCPU *cpu); +#endif + #endif /* LOONGARCH_CPU_H */ diff --git a/target/loongarch/kvm/kvm.c b/target/loongarch/kvm/kvm.c index a3f55155b0..516aba180f 100644 --- a/target/loongarch/kvm/kvm.c +++ b/target/loongarch/kvm/kvm.c @@ -1009,6 +1009,10 @@ int kvm_arch_init_vcpu(CPUState *cs) return ret; } +void kvm_loongarch_cpu_post_init(LoongArchCPU *cpu) +{ +} + int kvm_arch_destroy_vcpu(CPUState *cs) { return 0;