From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 736EA3D5661; Fri, 9 Oct 2026 08:16:07 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1791533769; cv=none; b=LbdLt1cfULZfvGVqOW5+DdY0kZj9X/KUrRbhV7Q6b18NRxAmWsJllFuBjBfIf1Ek94wLJ5ZMwmyACXojB9f0dqo7gR6h7g073CVGt63thN2n5te8RCKfxI1iLkI63RiciZq3aFjD3tJ/2mO2MF6sdvPlstoj3A5/KxTMLe8DrsM= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1791533769; c=relaxed/simple; bh=6L+KaznwAuHpheVwOwoX+V92qKrNouPZyPH9NAHcH7E=; h=Date:Message-ID:From:To:Cc:Subject:In-Reply-To:References: MIME-Version:Content-Type; b=kCmULKogtFgRyIRARGlK5WbUtI9mJLEGMH1mbc8I3YlKSzi8kC16iJa0DoRt6FN+/xSsM8v39Vs9OqteMq0ktiTfH0j/VEwCPzPRWAr+sa6Tjufwl19v/j1fzOqKwB+fb6A42iB8h9Pr3feA9gfNPIhze8TzITZqp/onSZWqQE4= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=ean2+KIy; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="ean2+KIy" Received: by smtp.kernel.org (Postfix) with ESMTPSA id AF2651F000FF; Fri, 9 Oct 2026 08:16:06 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1791533766; bh=0Q7Iq9ZQuMAvACwALePa9WJpZ8LPn0xN+4LqXcd3aNs=; h=Date:From:To:Cc:Subject:In-Reply-To:References; b=ean2+KIyYeG7dauOrNMQKn6Vnu7vA5ABJHULRILgDBXtUR6qMAZeVVNLkWQohjcaf pyNJbAJiZ0AlyzCWVYbgriI6uJhBwkqsrYIebZ3q1MVR+mVNDIxQ/qA7Qx9Wi2Upt3 L1ky3wVFsuXnKRwy0iuzKcoZ4Oh4jPuEYkW7dcuJnbgWSNsG8uME9h8pZMUa3Gr9sA OMeLKnmfDn2EUKr+j3iYrdfzo+LwrJ/dc6g+bExp8dh+eYxsoLtKvQGkdslXX1I3iu vSuzYHiAqkcLpK7YybCi28XQbhOP7NGVnPWMEMlM6XBOomPrzjmOLRkl9JhXM7i+I1 FfcwlGs0oyZFw== Received: from sofa.misterjones.org ([185.219.108.64] helo=goblin-girl.misterjones.org) by disco-boy.misterjones.org with esmtpsa (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.98.2) (envelope-from ) id 1xF5ls-00000000uDQ-1006; Fri, 09 Oct 2026 08:16:04 +0000 Date: Fri, 09 Oct 2026 09:16:03 +0100 Message-ID: <86bj932ssc.wl-maz@kernel.org> From: Marc Zyngier To: Michael Reeves Cc: Oliver Upton , Catalin Marinas , Will Deacon , Mark Rutland , Myria Sarvay , Yureka Lilian , Fuad Tabba , Joey Gouly , Steffen Eiden , Suzuki K Poulose , Zenghui Yu , linux-arm-kernel@lists.infradead.org, kvmarm@lists.linux.dev, Sven Peter , Janne Grunau , Neal Gompa , asahi@lists.linux.dev, linux-kernel@vger.kernel.org Subject: Re: [PATCH 2/2] arm64: Apply existing Apple CPU workarounds to M3 and M4 In-Reply-To: References: <20261008-apple-m3-m4-kvm-v1-0-7bb4cbf3d63b@gmail.com> <20261008-apple-m3-m4-kvm-v1-2-7bb4cbf3d63b@gmail.com> <86cxtk2utm.wl-maz@kernel.org> User-Agent: Wanderlust/2.15.9 (Almost Unreal) SEMI-EPG/1.14.7 (Harue) FLIM-LB/1.14.9 (=?UTF-8?B?R29qxY0=?=) APEL-LB/10.8 EasyPG/1.0.0 Emacs/30.1 (aarch64-unknown-linux-gnu) MULE/6.0 (HANACHIRUSATO) Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 (generated by SEMI-EPG 1.14.7 - "Harue") Content-Type: text/plain; charset=US-ASCII X-SA-Exim-Connect-IP: 185.219.108.64 X-SA-Exim-Rcpt-To: michael.reeves077@gmail.com, oupton@kernel.org, catalin.marinas@arm.com, will@kernel.org, mark.rutland@arm.com, myrialsarvay@gmail.com, yureka@cyberchaos.dev, fuad.tabba@linux.dev, joey.gouly@arm.com, seiden@linux.ibm.com, suzuki.poulose@arm.com, yuzenghui@huawei.com, linux-arm-kernel@lists.infradead.org, kvmarm@lists.linux.dev, sven@kernel.org, j@jannau.net, neal@gompa.dev, asahi@lists.linux.dev, linux-kernel@vger.kernel.org X-SA-Exim-Mail-From: maz@kernel.org X-SA-Exim-Scanned: No (on disco-boy.misterjones.org); SAEximRunCond expanded to false On Fri, 09 Oct 2026 01:03:57 +0100, Michael Reeves wrote: > > > I can provide the binary (and a few scripts) to test this easily. > > Should they have been fixed, we can always create a second > > implementation list to cover the PMU. > > Can you please send that so we can try? That would be much > appreciated, thank you. I've sent you (and Yureka) details over IRC. If you need help with setting things up, let me know directly. Thanks, M. -- Without deviation from the norm, progress is not possible.