From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from ms.lwn.net (ms.lwn.net [45.79.88.28]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id DF5F445949; Mon, 5 Feb 2024 17:21:32 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=45.79.88.28 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1707153696; cv=none; b=N79zMzhhlAQjn/zwcvkznvYg9YNgL/SSxQtHDcRO/S+5rDgLyOKnGTO8+NOugI4faVt9EHv8ic44CxN/LCu14E77ZtT1nphV1fNZLLHpborDOAxgmlkJFAdyGe1cFrq/zZ/ca+PSvXG5IvmkIdh2QggYth1xvLG9ogYC2wtQ320= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1707153696; c=relaxed/simple; bh=ea63PLwNl5FqbQxrrg0hqVQX7rjVFV72BlE5+I4cLi4=; h=From:To:Cc:Subject:In-Reply-To:References:Date:Message-ID: MIME-Version:Content-Type; b=KTK0mjm38jAmbSDBw6N5+KM7P83T+pgdIbIx1QFySXpob+Et8i3Nao8whpvO6cY63PBHbIBmlbnRzN4DEH1gtPel+6lhMnoS2M/pfTQfLJK4qlJQwm8q9poI4YkSaYmekIt/KTDcAHrmNXs3lmDeA3KrhyOwpLgbYKdfFeO8bdk= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=lwn.net; spf=pass smtp.mailfrom=lwn.net; dkim=pass (2048-bit key) header.d=lwn.net header.i=@lwn.net header.b=Fo4cC1jD; arc=none smtp.client-ip=45.79.88.28 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=lwn.net Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=lwn.net Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=lwn.net header.i=@lwn.net header.b="Fo4cC1jD" DKIM-Filter: OpenDKIM Filter v2.11.0 ms.lwn.net E71F745ACA DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=lwn.net; s=20201203; t=1707153692; bh=oUb/ZU0m956j09lY1gorLyKNp+KeEuERLzbirHHa85U=; h=From:To:Cc:Subject:In-Reply-To:References:Date:From; b=Fo4cC1jDMUuD6qduIUoKQnuDFwgP0txmSggZ9PXwf1J78xx8mmvxLKquPfJDLbzPQ RPI2vYUb9npi5wdHHpyqMeCOoC4WmUFnLLA0Iy/jdiix8ZH8V3NqsEDN+/zabhumNz WZG7IKrW5R7JM4ImER0DV58CLThf26geHBITzvSqZ99ddz4cjkQflKgYtDptXVGiJV 3ZeR0KFFt0MuoIOkwAFh3CFKso2sKmXioYuunnLjpXIIDyiLzYAMXQ2677R9H5WCj0 0MJaofuZZomnnXzZksj7jTvJ4BQImDHRDfIFAmFIwuLYA3QoLs1wixRlTQ4Nfn3CNi FEMgHD3exuXqQ== Received: from localhost (unknown [IPv6:2601:280:5e00:7e19::646]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by ms.lwn.net (Postfix) with ESMTPSA id E71F745ACA; Mon, 5 Feb 2024 17:21:31 +0000 (UTC) From: Jonathan Corbet To: "Guilherme G. Piccoli" , linux-doc@vger.kernel.org Cc: linux-kernel@vger.kernel.org, linux-s390@vger.kernel.org, rdunlap@infradead.org, tglx@linutronix.de, mingo@redhat.com, bp@alien8.de, dave.hansen@linux.intel.com, x86@kernel.org, hpa@zytor.com, hca@linux.ibm.com, gor@linux.ibm.com, agordeev@linux.ibm.com, borntraeger@linux.ibm.com, svens@linux.ibm.com, kernel@gpiccoli.net, kernel-dev@igalia.com, "Guilherme G. Piccoli" , Changwoo Min Subject: Re: [PATCH] docs: Document possible_cpus parameter In-Reply-To: <20240203152208.1461293-1-gpiccoli@igalia.com> References: <20240203152208.1461293-1-gpiccoli@igalia.com> Date: Mon, 05 Feb 2024 10:21:31 -0700 Message-ID: <87h6imvnc4.fsf@meer.lwn.net> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain "Guilherme G. Piccoli" writes: > The number of possible CPUs is set be kernel in early boot time through > some discovery mechanisms, like ACPI in x86. We have a parameter both > in x86 and S390 to override that - there are some cases of BIOSes exposing > more possible CPUs than the available ones, so this parameter is a good > testing mechanism, but for some reason wasn't mentioned so far in the > kernel parameters guide - let's fix that. > > Cc: Changwoo Min > Signed-off-by: Guilherme G. Piccoli > --- > Documentation/admin-guide/kernel-parameters.txt | 5 +++++ > 1 file changed, 5 insertions(+) Applied, thanks. jon