linux-kernel - Re: [PATCH v7 1/3] cacheinfo: Allocate memory during CPU hotplug if not done from the primary CPU

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Message-ID: <20241008190803.GB24312@ranerica-svr.sc.intel.com>
Date: Tue, 8 Oct 2024 12:08:03 -0700
From: Ricardo Neri <ricardo.neri-calderon@...ux.intel.com>
To: Borislav Petkov <bp@...en8.de>
Cc: x86@...nel.org, Andreas Herrmann <aherrmann@...e.com>,
	Catalin Marinas <catalin.marinas@....com>,
	Chen Yu <yu.c.chen@...el.com>, Len Brown <len.brown@...el.com>,
	Radu Rendec <rrendec@...hat.com>,
	Pierre Gondois <Pierre.Gondois@....com>, Pu Wen <puwen@...on.cn>,
	"Rafael J. Wysocki" <rafael.j.wysocki@...el.com>,
	Sudeep Holla <sudeep.holla@....com>,
	Srinivas Pandruvada <srinivas.pandruvada@...ux.intel.com>,
	Will Deacon <will@...nel.org>, Zhang Rui <rui.zhang@...el.com>,
	Nikolay Borisov <nik.borisov@...e.com>,
	Huang Ying <ying.huang@...el.com>,
	Ricardo Neri <ricardo.neri@...el.com>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v7 1/3] cacheinfo: Allocate memory during CPU hotplug if
 not done from the primary CPU

On Tue, Oct 08, 2024 at 08:41:45PM +0200, Borislav Petkov wrote:
> On Tue, Oct 08, 2024 at 10:00:15AM -0700, Ricardo Neri wrote:
> > IMHO, this patchset is needed in stable kernel because
> > /sys/devices/system/cpu cpu0/cache would be broken on Meteor Lake and
> > processors like it.
> 
> Is Meteor Lake and processors like it an already released product?

Yes, Meteor Lake was released in December 2023. It can be found in various
laptops.