From nobody Fri Sep 12 05:15:51 2025 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id BDAC8C636D4 for ; Tue, 14 Feb 2023 02:57:28 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230311AbjBNC50 (ORCPT ); Mon, 13 Feb 2023 21:57:26 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54774 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230503AbjBNC47 (ORCPT ); Mon, 13 Feb 2023 21:56:59 -0500 Received: from loongson.cn (mail.loongson.cn [114.242.206.163]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id B376118B03; Mon, 13 Feb 2023 18:56:57 -0800 (PST) Received: from loongson.cn (unknown [10.2.5.185]) by gateway (Coremail) with SMTP id _____8CxC9p4+Opjo1cAAA--.948S3; Tue, 14 Feb 2023 10:56:56 +0800 (CST) Received: from localhost.localdomain (unknown [10.2.5.185]) by localhost.localdomain (Coremail) with SMTP id AQAAf8Axeb1w+OpjmZwyAA--.28802S19; Tue, 14 Feb 2023 10:56:55 +0800 (CST) From: Tianrui Zhao To: Paolo Bonzini Cc: Huacai Chen , WANG Xuerui , Greg Kroah-Hartman , loongarch@lists.linux.dev, linux-kernel@vger.kernel.org, kvm@vger.kernel.org, Jens Axboe , Mark Brown , Alex Deucher Subject: [PATCH v1 17/24] LoongArch: KVM: Implement handle idle exception Date: Tue, 14 Feb 2023 10:56:41 +0800 Message-Id: <20230214025648.1898508-18-zhaotianrui@loongson.cn> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20230214025648.1898508-1-zhaotianrui@loongson.cn> References: <20230214025648.1898508-1-zhaotianrui@loongson.cn> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-CM-TRANSID: AQAAf8Axeb1w+OpjmZwyAA--.28802S19 X-CM-SenderInfo: p2kd03xldq233l6o00pqjv00gofq/ X-Coremail-Antispam: 1Uk129KBjvdXoW7JrW5uFykWr43XF43Ww48Zwb_yoW3CwbEqF WfJas3GrWrJ3W5ta4Dt3Z8Ca43Ga1kXFy5ZF17Zry3Gr1DtrW5GrWDWwn5ZryktrWUuF45 t3yvv3s7Aw1UtjkaLaAFLSUrUUUUnb8apTn2vfkv8UJUUUU8wcxFpf9Il3svdxBIdaVrn0 xqx4xG64xvF2IEw4CE5I8CrVC2j2Jv73VFW2AGmfu7bjvjm3AaLaJ3UjIYCTnIWjp_UUUY 27CY07I20VC2zVCF04k26cxKx2IYs7xG6rWj6s0DM28lY4IEw2IIxxk0rwA2F7IY1VAKz4 vEj48ve4kI8wA2z4x0Y4vE2Ix0cI8IcVAFwI0_tr0E3s1l84ACjcxK6xIIjxv20xvEc7Cj xVAFwI0_Gr1j6F4UJwA2z4x0Y4vEx4A2jsIE14v26r4UJVWxJr1l84ACjcxK6I8E87Iv6x kF7I0E14v26r4UJVWxJr1ln4kS14v26r126r1DM2AIxVAIcxkEcVAq07x20xvEncxIr21l 57IF6xkI12xvs2x26I8E6xACxx1l5I8CrVACY4xI64kE6c02F40Ex7xfMcIj6x8ErcxFaV Av8VWrMcvjeVCFs4IE7xkEbVWUJVW8JwACjcxG0xvY0x0EwIxGrwCY1x0262kKe7AKxVWU AVWUtwCF04k20xvY0x0EwIxGrwCF04k20xvE74AGY7Cv6cx26rWl4I8I3I0E4IkC6x0Yz7 v_Jr0_Gr1l4IxYO2xFxVAFwI0_JF0_Jw1lx2IqxVAqx4xG67AKxVWUJVWUGwC20s026x8G jcxK67AKxVWUGVWUWwC2zVAF1VAY17CE14v26r1q6r43MIIYrxkI7VAKI48JMIIF0xvE2I x0cI8IcVAFwI0_tr0E3s1lIxAIcVC0I7IYx2IY6xkF7I0E14v26r4UJVWxJr1lIxAIcVCF 04k26cxKx2IYs7xG6r1j6r1xMIIF0xvEx4A2jsIE14v26r4UJVWxJr1lIxAIcVC2z280aV CY1x0267AKxVW8Jr0_Cr1UYxBIdaVFxhVjvjDU0xZFpf9x0zR9iSdUUUUU= Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" Implement kvm handle loongarch vcpu idle exception, using kvm_vcpu_block to emulate it. Signed-off-by: Tianrui Zhao --- arch/loongarch/kvm/exit.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/arch/loongarch/kvm/exit.c b/arch/loongarch/kvm/exit.c index f02e2b940..a6beb83a0 100644 --- a/arch/loongarch/kvm/exit.c +++ b/arch/loongarch/kvm/exit.c @@ -191,3 +191,15 @@ int _kvm_complete_iocsr_read(struct kvm_vcpu *vcpu, st= ruct kvm_run *run) =20 return er; } + +int _kvm_emu_idle(struct kvm_vcpu *vcpu) +{ + ++vcpu->stat.idle_exits; + trace_kvm_exit(vcpu, KVM_TRACE_EXIT_IDLE); + if (!vcpu->arch.irq_pending) { + kvm_save_timer(vcpu); + kvm_vcpu_block(vcpu); + } + + return EMULATE_DONE; +} --=20 2.31.1