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[2620:137:e000::1:20]) by mx.google.com with ESMTP id xb7-20020a170907070700b007822665aa36si25763879ejb.430.2023.01.03.10.31.35; Tue, 03 Jan 2023 10:31:49 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; dkim=pass header.i=@kernel.org header.s=k20201202 header.b=dNq2WgLp; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238278AbjACR4b (ORCPT + 60 others); Tue, 3 Jan 2023 12:56:31 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:50784 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S238266AbjACR42 (ORCPT ); Tue, 3 Jan 2023 12:56:28 -0500 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 8A7E211836 for ; Tue, 3 Jan 2023 09:56:26 -0800 (PST) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 1D44A614B6 for ; Tue, 3 Jan 2023 17:56:26 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 79571C433D2; Tue, 3 Jan 2023 17:56:25 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1672768585; bh=UC4RdBvcPnI5XJhhZ46pv1YotwVqygpNpSpelRcjc+k=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=dNq2WgLp6fiiAgRTQt9iNPOZmuaaRoeBfgUewesNE5DImDRlCrMbjbqSMDDiIsrFy fQ83YDSZTq659bmYpz0aXisuvux6mnraKOdoQTbm8JpDuEzCHDkdZCh0Mmds2rOQr4 zwjr57RrWgKHYZBAU2oGsX+AOLkodvGX+nd5XUGzF+g2U5a6wQmmlHrkb/NpGNyF1g jiab5756EaFtBNsVqKqCW7kzfCZqz0E0E9J4T6flkSFrvguURllYJpT8ZFXEwxrudf t41+RiIxV47Yxh5zw0ecjSLfdvnlD3015xQwGTLefok2gZH6Usex2tz5xk+tFQ/HKP hD7KRz4wXqP0A== Received: from sofa.misterjones.org ([185.219.108.64] helo=valley-girl.lan) by disco-boy.misterjones.org with esmtpsa (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.95) (envelope-from ) id 1pClWR-00Ga6w-6F; Tue, 03 Jan 2023 17:56:23 +0000 From: Marc Zyngier To: kvmarm@lists.cs.columbia.edu, Marc Zyngier , kvmarm@lists.linux.dev Cc: Suzuki K Poulose , linux-kernel@vger.kernel.org, Oliver Upton , Alyssa Rosenzweig , Catalin Marinas , Hector Martin , Sven Peter , Alexandru Elisei , Thomas Gleixner , linux-arm-kernel@lists.infradead.org, Will Deacon , asahi@lists.linux.dev, James Morse Subject: Re: (subset) [PATCH 0/3] KVM: arm64: M2 vgic maintenance interrupt rework pre-NV Date: Tue, 3 Jan 2023 17:56:19 +0000 Message-Id: <167276854454.3239244.7195924669135808939.b4-ty@kernel.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230103095022.3230946-1-maz@kernel.org> References: <20230103095022.3230946-1-maz@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit X-SA-Exim-Connect-IP: 185.219.108.64 X-SA-Exim-Rcpt-To: kvmarm@lists.cs.columbia.edu, maz@kernel.org, kvmarm@lists.linux.dev, suzuki.poulose@arm.com, linux-kernel@vger.kernel.org, oliver.upton@linux.dev, alyssa@rosenzweig.io, catalin.marinas@arm.com, marcan@marcan.st, sven@svenpeter.dev, alexandru.elisei@arm.com, tglx@linutronix.de, linux-arm-kernel@lists.infradead.org, will@kernel.org, asahi@lists.linux.dev, james.morse@arm.com X-SA-Exim-Mail-From: maz@kernel.org X-SA-Exim-Scanned: No (on disco-boy.misterjones.org); SAEximRunCond expanded to false X-Spam-Status: No, score=-7.1 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_HI, SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, 3 Jan 2023 09:50:19 +0000, Marc Zyngier wrote: > I've spent the holiday break reviving the Nested Virt KVM/arm64 > implementation[1] and allowing it to work on the Apple M2 SoC. The > amusing part is that it actually works! > > However, the way the vgic is implemented on this HW is still at odds > with the rest of the architecture, and requires some hacks, some of > which are independent of the actual NV code. This is what this series > is about. > > [...] Applied to fixes, thanks! [1/3] KVM: arm64: vgic: Add Apple M2 cpus to the list of broken SEIS implementations commit: 4f6202c9fb51cc6a2593ad37d8ddff136b7acef2 Cheers, M. -- Without deviation from the norm, progress is not possible.