From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (prime256v1) server-digest SHA256) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 67267606A31B for ; Wed, 4 Nov 2026 16:29:58 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key, unprotected) header.d=lists.infradead.org header.i=@lists.infradead.org header.a=rsa-sha256 header.s=bombadil.20210309 header.b=yToDXIUY; dkim=pass (1024-bit key, unprotected) header.d=arm.com header.i=@arm.com header.a=rsa-sha256 header.s=foss header.b=qmN/XCMN DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:In-Reply-To:Content-Type: MIME-Version:References:Message-ID:Subject:Cc:To:From:Date:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Unsubscribe-Post:List-Owner; bh=A+c88oY+OM1KTWwYSavDme1bSrIZkOp07+hlEpWVcCw=; b=yToDXIUYNEmPVhCr768sZ6a77L Rm/n8ziHt97vcqNFfVveN9IFztoqUW2CXOnv15RzdJp6TRRtRHBnT9KdVoH7nJjsNgHC70RS7laF9 n/gXk6rWTerlCdh6LvVgUq1BUJDpmwYJ4ZVR5AzBOYKCtdNbz8vLkZRqCaXDDtNki9VgwSQSMF3+s qy1IviOx/gL9LhZmY1G0TmPuhpLTOmIED0WJDgrjudhm4GuSP5JgrwDbqJbX+PjIY4B8jZBgrxEh8 4jJqvz7bXefea/I8Jq9SCB+qA4tM73qL398mP8CGfe6UWpESqhuHu7TFF7mDEulCoYjHF1QBVvGev IU+WurqA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.100.1 #2 (Red Hat Linux)) id 1xOds0-00000005z5C-0Uo5; Wed, 04 Nov 2026 16:29:52 +0000 Received: from foss.arm.com ([217.140.110.172]) by bombadil.infradead.org with esmtp (Exim 4.100.1 #2 (Red Hat Linux)) id 1xOdrw-00000005z2Y-2YXz for linux-arm-kernel@lists.infradead.org; Wed, 04 Nov 2026 16:29:50 +0000 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id CA628169C; Wed, 4 Nov 2026 08:29:44 -0800 (PST) Received: from arm.com (usa-sjc-mx-foss1.foss.arm.com [172.31.20.19]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 378FE3F632; Wed, 4 Nov 2026 08:29:45 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=arm.com; s=foss; t=1793809787; bh=yfV7Pr/7oJjyugoqKWkyvS9QCQp5fdkcK+WpMwo/qac=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=qmN/XCMN+bMq7vL3IroW/zO5c9utj8tVY7h4PeGCnZGzZx6QJb+MVfxfmxpGIFkWs MPGF/7odw2F/vJpAguk557fWflsz7TXTzAaTdWmwif+k4Ga1M/3BXeRPSyJhdDYVVy 1rCDBkJOH7eR30KB5XIpAumuo7e8R8w3RhGUWzuw= Date: Wed, 4 Nov 2026 16:29:42 +0000 From: Catalin Marinas To: michael.reeves077@gmail.com Cc: Marc Zyngier , Oliver Upton , 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 v2 2/2] arm64: Apply existing Apple Silicon CPU workarounds to newer CPUs Message-ID: References: <20261021-apple-m3-m4-kvm-v2-0-04905152cc2a@gmail.com> <20261021-apple-m3-m4-kvm-v2-2-04905152cc2a@gmail.com> X-Archived-By: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20261021-apple-m3-m4-kvm-v2-2-04905152cc2a@gmail.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20261104_082949_737415_9CB8F67F X-CRM114-Status: UNSURE ( 8.26 ) X-CRM114-Notice: Please train this message. X-Spam-Score: -4.4 (----) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" X-Spam-Status: No, score=-10.9 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=4.0.1 X-Spam-Checker-Version: SpamAssassin 4.0.1 (2024-03-26) on aws-us-west-2-korg-listserv-alma10-1 On Wed, Oct 21, 2026 at 10:53:21AM +1100, Michael Reeves via B4 Relay wrote: > From: Michael Reeves > > Add M3, M3 Pro, M3 Max, base M4, A18 Pro and M5 Pro to apple_cpus > so they receive the existing PMU trap and broken SEIS workarounds. > > Add these CPUs to has_vgic_v3 so KVM detects TDIR support and can > trap guest DIR accesses without trapping all common registers. > > Co-developed-by: Yureka Lilian > Signed-off-by: Yureka Lilian > Tested-by: Yureka Lilian > Tested-by: Myria Sarvay > Signed-off-by: Michael Reeves Acked-by: Catalin Marinas