From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pj1-f73.google.com (mail-pj1-f73.google.com [209.85.216.73]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id DFF57257452 for ; Tue, 19 May 2026 00:41:03 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.216.73 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1779151267; cv=none; b=bfNUv+Liw1ZAsWESxsJ/yMaPOaplIknR3Q5uKI49ZeRF4iU8txT9+amCeF0s1NjGfGrAyVUi8+xbH3dkks0VF4C0cCbtcEQPD5LR5bJPE/SPP1lzotvJ9/5VaROuDXf225q+gHZBLoW7x6dQJfleRQzD+7vD0ysrM9Avud9V5C8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1779151267; c=relaxed/simple; bh=QHKf+aZXn34+/5J/HD019n1CgKD1ux2J3xrbq47knvw=; h=Date:In-Reply-To:Mime-Version:References:Message-ID:Subject:From: To:Cc:Content-Type; b=SUUGVrHdrcwnHGu08ii660cIRFCfO05hXlNk1C5f9OXAkbSF29IB0kP6EknpXAVwmqP5c0GyJYNJHrPRpbY2UwwQOU1WMnLfo1AHk4pyI1KQVLDf8360qpc3jtvMgEIBnu5JE5E/J9BzZH0DEPpUHu4Kyjpef9WDph/3nwwsJGU= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com; spf=pass smtp.mailfrom=flex--seanjc.bounces.google.com; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b=Zpd3/xKn; arc=none smtp.client-ip=209.85.216.73 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=flex--seanjc.bounces.google.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="Zpd3/xKn" Received: by mail-pj1-f73.google.com with SMTP id 98e67ed59e1d1-368f2d76b04so2695022a91.3 for ; Mon, 18 May 2026 17:41:03 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20251104; t=1779151262; x=1779756062; darn=vger.kernel.org; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:from:to:cc:subject:date:message-id:reply-to; bh=MOIYlOIkyLAIe9d6QNLjzenaamPqaWyCi9gR//uAfps=; b=Zpd3/xKnhLPB2LaHRUxDTUJqS128cotaehS7lk1FMHpt+lkVKbBrmfFGFDhcZUd7dz 7+YZUPE7MzrYGIbo4y1eUtnKbC7Ad+vXoa+aVLnrxtO2M1umMTDXR9ucdu6dd/DpQ+fg Xrewggqg5LnK4eDZinWcmJEjuT3vuj9QmEZUvf3L4Y8V50JLoJ+f8Wy83qf6PJADwmBG WGCp55ozkJFYdi26Mp/oS2eMjmfWbttvHWKMn0Co8Gh9hQScnUIBVDhzp/pTEZyUUZ6O Oc/UB4GAlr1ZR5iU0vmRpjsohe57Q30SiLdMdakGBjoyFyvXCiC2kOUc+GhdrjgiFY+Z /BKg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1779151262; x=1779756062; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=MOIYlOIkyLAIe9d6QNLjzenaamPqaWyCi9gR//uAfps=; b=N+hk9uox6EpGEX52zAcKJ8qlgbyk70ZAN4C//pepJva7o4/YFLcpmfUI58x0GW7rZi OXLmsNLPPHeHGGMHzcz4fsuInWkEgt6bn1U2uXPpx262xt3+iyn98fQqzqx2C8rOY7ay o0u7ECA7NwIyvFqHV+lV/bvDaaA8GVn4jHGMxOa/NJIVH5eNgsKko9NCqAaOH/K17/ln Y5u5iG+ivwkYPSLZ5tQqfVOk2l8wQ6R0mVtlaAQHAglaXZALq0JPfV7V1fscSYMhE2ru +zoMlqky0Kh0t3rZ/2pdmIccc2T6RW2FvTdFR3sKn6ChKrVh7JHZy175q0chq3n1ZX/c QqsA== X-Forwarded-Encrypted: i=1; AFNElJ/L0f+ntN8NeTHQvDncT7h8rTgofcqCwYNp9R1byZkrPZCNaknM0zA7L0MEEuNPWvOk8i6eDixMvYMLTeQ=@vger.kernel.org X-Gm-Message-State: AOJu0YztC5MoHbbwqTXtqr9cILIV+ShNX/YyhGTBe+n230phUS0HMdG5 QJGm3+uRgqzvwUvu3ma6a3X3L2oUQDxkfPgpxnAnVkNEkjKfV97PAu27HoNNNP1lbE84ZHSL/vm KeJC1Bw== X-Received: from pjbnv3.prod.google.com ([2002:a17:90b:1b43:b0:369:1a1a:82c9]) (user=seanjc job=prod-delivery.src-stubby-dispatcher) by 2002:a17:90b:2d4b:b0:35a:189b:43db with SMTP id 98e67ed59e1d1-369518b20ecmr14004943a91.4.1779151261772; Mon, 18 May 2026 17:41:01 -0700 (PDT) Date: Mon, 18 May 2026 17:40:32 -0700 In-Reply-To: <20260409142226.2581-1-lei.chen@smartx.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20260409142226.2581-1-lei.chen@smartx.com> X-Mailer: git-send-email 2.54.0.563.g4f69b47b94-goog Message-ID: <177915096245.2229085.13630344593497072451.b4-ty@google.com> Subject: Re: [PATCH v2] KVM: x86: Rate-limit global clock updates on vCPU load From: Sean Christopherson To: Sean Christopherson , Lei Chen Cc: igor@gooddata.com, jan.cipa@gooddata.com, jaroslav.pulchart@gooddata.com, kvm@vger.kernel.org, linux-kernel@vger.kernel.org, pbonzini@redhat.com Content-Type: text/plain; charset="utf-8" On Thu, 09 Apr 2026 22:22:26 +0800, Lei Chen wrote: > commit 446fcce2a52b ("Revert "x86: kvm: rate-limit global clock updates"") > dropped the rate limiting for KVM_REQ_GLOBAL_CLOCK_UPDATE. > > As a result, kvm_arch_vcpu_load() can queue global clock update requests > every time a vCPU is scheduled when the master clock is disabled or when > the vCPU is loaded for the first time. > > [...] Applied to kvm-x86 fixes, thanks! [1/1] KVM: x86: Rate-limit global clock updates on vCPU load https://github.com/kvm-x86/linux/commit/8fe2e698fce4 -- https://github.com/kvm-x86/linux/tree/next