From mboxrd@z Thu Jan 1 00:00:00 1970 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 mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 5629BC433FE for ; Sat, 13 Nov 2021 01:22:57 +0000 (UTC) Received: from mm01.cs.columbia.edu (mm01.cs.columbia.edu [128.59.11.253]) by mail.kernel.org (Postfix) with ESMTP id ECA376108B for ; Sat, 13 Nov 2021 01:22:56 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org ECA376108B Authentication-Results: mail.kernel.org; dmarc=fail (p=reject dis=none) header.from=google.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=lists.cs.columbia.edu Received: from localhost (localhost [127.0.0.1]) by mm01.cs.columbia.edu (Postfix) with ESMTP id 9F2DB4B30A; Fri, 12 Nov 2021 20:22:56 -0500 (EST) X-Virus-Scanned: at lists.cs.columbia.edu Authentication-Results: mm01.cs.columbia.edu (amavisd-new); dkim=softfail (fail, message has been altered) header.i=@google.com Received: from mm01.cs.columbia.edu ([127.0.0.1]) by localhost (mm01.cs.columbia.edu [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 7fw4VnK04B13; Fri, 12 Nov 2021 20:22:55 -0500 (EST) Received: from mm01.cs.columbia.edu (localhost [127.0.0.1]) by mm01.cs.columbia.edu (Postfix) with ESMTP id 9F5544B304; Fri, 12 Nov 2021 20:22:55 -0500 (EST) Received: from localhost (localhost [127.0.0.1]) by mm01.cs.columbia.edu (Postfix) with ESMTP id 0ACBD4B29A for ; Fri, 12 Nov 2021 20:22:54 -0500 (EST) X-Virus-Scanned: at lists.cs.columbia.edu Received: from mm01.cs.columbia.edu ([127.0.0.1]) by localhost (mm01.cs.columbia.edu [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id ELQ4olgUCm63 for ; Fri, 12 Nov 2021 20:22:53 -0500 (EST) Received: from mail-pg1-f202.google.com (mail-pg1-f202.google.com [209.85.215.202]) by mm01.cs.columbia.edu (Postfix) with ESMTPS id DFC1B4B2AE for ; Fri, 12 Nov 2021 20:22:52 -0500 (EST) Received: by mail-pg1-f202.google.com with SMTP id 70-20020a630149000000b002da385ceffaso5632249pgb.17 for ; Fri, 12 Nov 2021 17:22:52 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20210112; h=date:in-reply-to:message-id:mime-version:references:subject:from:to :cc; bh=Ba+wxobSaiFgmTcgNPo/VsfplrPQ2ANaflUkZ8U4a0Y=; b=B2RXTSE+PsDQxq7oyt7onb151ClNd8WGtfxbuo8u0TZgh9aOnDTWAnvdB/5/Dy0rzQ W0SVhNnv9T96lHG4/HucXMgaCt2V6L/wjk9GMjXIyF1SLKA3QiUJ1+NyrPEjPNeQCF8L L7kGJS/2VpOghFFwbmHpzBKTMy1rH586KW5wzi0d6hgzl5ZT2hHP62qfgOs/PBN1QLR3 I283eK87ObcpukWe/Tw04Po+bpk1cxT80eJ/Vb3iF3jFtt6VLa1UmfuvwFNryAuWFGf+ NbsBedNB+i2THjX+c+6HFo+oIyw/Fidj1xiS3ksdMJJhZhV4oinNo3UnIYCJtHJGTh+W j+qQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:date:in-reply-to:message-id:mime-version :references:subject:from:to:cc; bh=Ba+wxobSaiFgmTcgNPo/VsfplrPQ2ANaflUkZ8U4a0Y=; b=a3GQg+4gQvk4DRJl9/EUxEVV9TH4Hj3h3egdECmcI6F6TpzGFRsXT7uoVY7iicuOV4 u/YopK3ap3GltRj3/C6K3A3mapvLjnXFkvOnHggW2+FuNGstO/6vDtD3TJDepKjEMnbn F9Natd3VfAV5AB33tCveTGRfKRIcMkfaAlDyY/n+ViRivF1Bw2NAm543OU5SiNbSdcEY +b4rjd3qaWA/4tNr/NBpS7FEgWVd0gPaZ8QvRQTe5OqRatJJvGUIh4ht3H3LcweJZumt r4zWRe9VTdrtisR+ZeSrgC0xBWAPcjXBxjvUeEXD60MivZdR67i1/lSp/ej91iCmDmxn ncGg== X-Gm-Message-State: AOAM533hGc01UeXcunGIxwHN8Pts6CRG0KBa+ToRADUSdYl1Z4bLAdR3 FbvG6Zm69D/vdUKxx8VqhjWPJ7ykZ+S6 X-Google-Smtp-Source: ABdhPJxd9EBwwuIBPspUU4u87Oi0TkCWLlVKjb1nJ8VxwRhr5W5IAS2T2mLzZod60TuVuSRdfolwZ6rvNCJY X-Received: from rananta-virt.c.googlers.com ([fda3:e722:ac3:cc00:7f:e700:c0a8:1bcc]) (user=rananta job=sendgmr) by 2002:a17:90a:3905:: with SMTP id y5mr141689pjb.0.1636766571415; Fri, 12 Nov 2021 17:22:51 -0800 (PST) Date: Sat, 13 Nov 2021 01:22:26 +0000 In-Reply-To: <20211113012234.1443009-1-rananta@google.com> Message-Id: <20211113012234.1443009-4-rananta@google.com> Mime-Version: 1.0 References: <20211113012234.1443009-1-rananta@google.com> X-Mailer: git-send-email 2.34.0.rc1.387.gb447b232ab-goog Subject: [RFC PATCH v2 03/11] KVM: Introduce kvm_vm_has_run_once From: Raghavendra Rao Ananta To: Marc Zyngier , Andrew Jones , James Morse , Alexandru Elisei , Suzuki K Poulose Cc: kvm@vger.kernel.org, Catalin Marinas , Peter Shier , linux-kernel@vger.kernel.org, Paolo Bonzini , Will Deacon , kvmarm@lists.cs.columbia.edu, linux-arm-kernel@lists.infradead.org X-BeenThere: kvmarm@lists.cs.columbia.edu X-Mailman-Version: 2.1.14 Precedence: list List-Id: Where KVM/ARM decisions are made List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: kvmarm-bounces@lists.cs.columbia.edu Sender: kvmarm-bounces@lists.cs.columbia.edu The upcoming patches need a way to detect if the VM, as a whole, has started. Hence, unionize kvm_vcpu_has_run_once() of all the vcpus of the VM and build kvm_vm_has_run_once() to achieve the functionality. No functional change intended. Signed-off-by: Raghavendra Rao Ananta --- include/linux/kvm_host.h | 2 ++ virt/kvm/kvm_main.c | 17 +++++++++++++++++ 2 files changed, 19 insertions(+) diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h index b373929c71eb..102e00c0e21c 100644 --- a/include/linux/kvm_host.h +++ b/include/linux/kvm_host.h @@ -1854,4 +1854,6 @@ static inline bool kvm_vcpu_has_run_once(struct kvm_vcpu *vcpu) return vcpu->has_run_once; } +bool kvm_vm_has_run_once(struct kvm *kvm); + #endif diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c index 1ec8a8e959b2..3d8d96e8f61d 100644 --- a/virt/kvm/kvm_main.c +++ b/virt/kvm/kvm_main.c @@ -4339,6 +4339,23 @@ static int kvm_vm_ioctl_get_stats_fd(struct kvm *kvm) return fd; } +bool kvm_vm_has_run_once(struct kvm *kvm) +{ + int i, ret = false; + struct kvm_vcpu *vcpu; + + mutex_lock(&kvm->lock); + + kvm_for_each_vcpu(i, vcpu, kvm) { + ret = kvm_vcpu_has_run_once(vcpu); + if (ret) + break; + } + + mutex_unlock(&kvm->lock); + return ret; +} + static long kvm_vm_ioctl(struct file *filp, unsigned int ioctl, unsigned long arg) { -- 2.34.0.rc1.387.gb447b232ab-goog _______________________________________________ kvmarm mailing list kvmarm@lists.cs.columbia.edu https://lists.cs.columbia.edu/mailman/listinfo/kvmarm