From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from linux.microsoft.com (linux.microsoft.com [13.77.154.182]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 5A0A742C4FC; Mon, 19 Oct 2026 04:09:24 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=13.77.154.182 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1792382965; cv=none; b=LFwLFIRmM/e/6s5QigiYc05bMGg0Wi/C9/RCfqJlmj81JnfMi8lOklfFlsSDA/dkRv/wRkrWh2JkFUw+Bf3bP7FuQqmcI145/Et20S4Kbid74/cXLF/2q+SSNzo9GJjVYyxOrjMppkxlMo+XvqiVxjq36JTT0/T0gA1Lm6zo3Dg= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1792382965; c=relaxed/simple; bh=b3yN0+Sqbo+owN9vPmP5jDBhXYVkZHYesravJ0uaDIc=; h=Message-ID:Date:MIME-Version:Subject:To:References:From: In-Reply-To:Content-Type; b=c3ZCGrAj5oyCXKvcDmuJSs02aFYND48CGybJ2AkhDdWPJ41d7TciJzFEeVLWrWKgz/cwSkLjW8D9w+IVYdbic/7iTtjotNVmFicTcLkipEuOdj2DQx/yQ5bHQZ2+R6hhjd7a2+VMgNXT/QCKfij3uYUsUEoDmrz9gbR8GkHTLgw= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.microsoft.com; spf=pass smtp.mailfrom=linux.microsoft.com; dkim=pass (1024-bit key) header.d=linux.microsoft.com header.i=@linux.microsoft.com header.b=ImAEDt4x; arc=none smtp.client-ip=13.77.154.182 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.microsoft.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.microsoft.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux.microsoft.com header.i=@linux.microsoft.com header.b="ImAEDt4x" Received: from [10.95.64.89] (unknown [52.172.102.253]) by linux.microsoft.com (Postfix) with ESMTPSA id EBDCD20B7168; Sun, 18 Oct 2026 21:09:08 -0700 (PDT) DKIM-Filter: OpenDKIM Filter v2.11.0 linux.microsoft.com EBDCD20B7168 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.microsoft.com; s=default; t=1792382951; bh=kD3aqbgMW82kfQTV55TBnU5yndyEktZgD20SrHfdxk8=; h=Date:Subject:To:References:From:In-Reply-To:From; b=ImAEDt4xzfR8mkkVyQ3hEKh3q+yUWvuTnYYGSpZir26oqkWFQkJ2gALjFDjhgay00 BdINi+NDeWq4yBtBxGJu/KN83NdUCxYdiAvvS0kBROQFg2Wc9DXusN8LYfSrLkVNJT 9k9rYyxmW+MDsXXAIlFXUKTEocpQTXtpXWuPn96c= Message-ID: <84c95503-b59a-457a-9225-0c746b0b6f44@linux.microsoft.com> Date: Mon, 19 Oct 2026 09:39:12 +0530 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 1/1] Documentation: hyperv: Update information on guest CPU offlining To: mhklinux@outlook.com, haiyangz@microsoft.com, wei.liu@kernel.org, decui@microsoft.com, corbet@lwn.net, skhan@linuxfoundation.org, rdunlap@infradead.org, linux-kernel@vger.kernel.org, linux-hyperv@vger.kernel.org, linux-doc@vger.kernel.org References: <20261017160848.14730-1-mhklinux@outlook.com> Content-Language: en-US From: Naman Jain In-Reply-To: <20261017160848.14730-1-mhklinux@outlook.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit On 10/17/2026 9:38 PM, Michael Kelley wrote: > In Hyper-V Overview documentation, remove the out-of-date reference > to explicitly reassigning VMBus channel interrupts before taking a > guest CPU offline. Instead, reference the VMBus documentation, which > is already up-to-date on this topic. > > Signed-off-by: Michael Kelley > --- > Documentation/virt/hyperv/overview.rst | 10 +++++----- > 1 file changed, 5 insertions(+), 5 deletions(-) > > diff --git a/Documentation/virt/hyperv/overview.rst b/Documentation/virt/hyperv/overview.rst > index 77408a89d1a4..63489f73a299 100644 > --- a/Documentation/virt/hyperv/overview.rst > +++ b/Documentation/virt/hyperv/overview.rst > @@ -132,11 +132,11 @@ Starting in Windows Server 2022 Hyper-V, the ACPI tables reflect > only the CPUs actually present in the VM, so Linux does not report > any hot-add CPUs. > > -A Linux guest CPU may be taken offline using the normal Linux > -mechanisms, provided no VMBus channel interrupts are assigned to > -the CPU. See the section on VMBus Interrupts for more details > -on how VMBus channel interrupts can be re-assigned to permit > -taking a CPU offline. > +A Linux guest CPU may be taken offline, and subsequently brought > +back online, using the normal Linux mechanisms. See the "VMBus > +Interrupts" section of Documentation/virt/hyperv/vmbus.rst > +documentation for how VMBus channel interrupts are automatically > +re-assigned if necessary when taking a CPU offline. > > 32-bit and 64-bit > ----------------- LGTM. Reviewed-by: Naman Jain Regards, Naman