From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 E994E21B9F6 for ; Mon, 2 Jun 2025 13:42:17 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1748871739; cv=none; b=X/tEpqmEFpBtT/QhMPO3QMitbVlFRx+Uu7fLH48HjSA1QcNd1UXrMGQ4rIPBrNgSgn8OH91Ks3GnAyfjwLAHW/OfsJwZ3XwVnry5QN1giyaLT0c54BL5NdF8ef/7/vqNlWknq0i+ZtMZo+In02UycLXaY0rBexRjt2sgS0nQVYg= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1748871739; c=relaxed/simple; bh=QGP116vocQSl0XnSlDwq9B8Uh09Tx/0uFirdqmSCerk=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version:Content-Type; b=f7f2yjVX5QVCurQ7trwmztRUHrxbmDLqgbVNo90GA3Rf/6Pk1uF6IT7g6146eaPNXVsaMXQeTer5FHGXqfREn/KjxXuWwZGc4KCZCiko24qXxGHk/ltHL9kOlCLCatVYpCtV8RVcDR+/mSzfeayHOTK+L+rRRwtGBr7GM6bZ6Ho= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=Vhted7lw; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="Vhted7lw" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 18D6DC4CEEB; Mon, 2 Jun 2025 13:42:14 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1748871737; bh=QGP116vocQSl0XnSlDwq9B8Uh09Tx/0uFirdqmSCerk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Vhted7lwJWdHYWPPoC+r65ItQeB21VPbcME3yg5VqfPf9Qr/yJGrNpMJVYqKY/Q0J 9vzjpLmhOOBmeFWwEwMcMjsH0WfA+nIZkxjJy1VeUIzOX4a53PKwQRi1egy5vp/EZE v3a/yv5CsfsxPhNy9U+WO7wXA+cMSjBbV2+DqZvLwMqHTWPIuUeE2EAFifyY5ckZjA Z07E7YYvEnbRNdDAS5nqFaCmLQWo6L02tBQ4Qm4u3YY60ZDUDxGWSeAz8ovUBFGCv1 uYDrAc5WE1SJ8fi3LXBL62bjtzl95dFUoM96vReCcwzte4bfp9giHRX3TmRY6ypmo1 e1X9sV0nvcFuA== From: Will Deacon To: James Morse , Marc Zyngier , Anshuman Khandual , Ben Horgan , Xi Ruoyao Cc: catalin.marinas@arm.com, kernel-team@android.com, Will Deacon , linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Shameer Kolothum , Mingcong Bai , Shaopeng Tan Subject: Re: [PATCH v4] arm64: Add override for MPAM Date: Mon, 2 Jun 2025 14:42:05 +0100 Message-Id: <174886855062.2951814.2307723986328064576.b4-ty@kernel.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20250602043723.216338-1-xry111@xry111.site> References: <20250602043723.216338-1-xry111@xry111.site> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit On Mon, 02 Jun 2025 12:33:21 +0800, Xi Ruoyao wrote: > As the message of the commit 09e6b306f3ba ("arm64: cpufeature: discover > CPU support for MPAM") already states, if a buggy firmware fails to > either enable MPAM or emulate the trap as if it were disabled, the > kernel will just fail to boot. While upgrading the firmware should be > the best solution, we have some hardware of which the vendor have made > no response 2 months after we requested a firmware update. Allow > overriding it so our devices don't become some e-waste. > > [...] Applied to arm64 (for-next/core), thanks! [1/1] arm64: Add override for MPAM https://git.kernel.org/arm64/c/10f885d63a0e Cheers, -- Will https://fixes.arm64.dev https://next.arm64.dev https://will.arm64.dev