From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id D3477C4332F for ; Fri, 11 Nov 2022 19:07:50 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=E6TK1krsMTP/tUEPwJVRJdZqJRm6auVHVH32xPW3Uvw=; b=V9Aw0P0gmNfzwC rDXOSIQxA7XU2jv6dY7uEdSuPzyR8ghVUmzn+2XbqQewWgvI2TAEjPfksKFUlygewkQfcorabUiG7 xmUGe6Uch0sOidCm7OAjH0i18pQwsNonFe5vAl0jXBdXTjA7tCSUMMNJ2y3cWpxT658PBrc/2JPp+ CWMu2ZIKFcfkU3qC1MbXNnsQe5q9PxVlKmNkrb30mK3uN6O7EJGnqOtzS+vux/HkLxG4Q8olQ9NDb YXLz5isvwD6hdO6G9Em8bztO1PRoVnPuwvqJHtALblN6e+sscPfidh27qNaliqj4/jAjHz/HdfZOx GFCzzP58D0zSTMEX6/9A==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1otZMC-000OVx-Su; Fri, 11 Nov 2022 19:06:28 +0000 Received: from dfw.source.kernel.org ([139.178.84.217]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1otZM9-000OUT-JU for linux-arm-kernel@lists.infradead.org; Fri, 11 Nov 2022 19:06:27 +0000 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 935CB618C9; Fri, 11 Nov 2022 19:06:20 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id E3515C433D6; Fri, 11 Nov 2022 19:06:19 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1668193579; bh=glUZLqZQVoxiOyzIfHGRfq6bY6J3iXv73EeOSZbGuyI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=RCBMVH408hR6/dNC2gHgo8eXBO9ISeYqcfw0MnUnTjUhENnIn4IGEBkQh/18pmJyD mRpvEOxI8tstgnQERg/ZjUfO7dk42BJPM5FlYpRM8N3YYOySErzlVPGgtdwxl1ZiGr pQRUVAhma5N1O7OoJF4bflUWIPnUiGmSJo4UIMjdRY0ljuG6fcob0OuM0G2c+6AF84 shi4o3fgBvtQJWNkT7puMyy7Q7n9uQ68gxrDjBbDYjw4+sy3l++psfdYBd7I03agnx ft/td6Kl43SCJBZ10nmHAq4onJbtRSGso7AXnaJiwh8P2Q6Z38gnDkaHa/HIYI1poS c1dJvDVXqZ0SA== 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 1otZM1-005Ux5-IC; Fri, 11 Nov 2022 19:06:17 +0000 From: Marc Zyngier To: Will Deacon , kvmarm@lists.linux.dev Cc: Vincent Donnefort , James Morse , Mark Rutland , Alexandru Elisei , kernel-team@android.com, Quentin Perret , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , Suzuki K Poulose , Fuad Tabba , kvm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Oliver Upton , Sean Christopherson , Catalin Marinas , Chao Peng Subject: Re: [PATCH v6 00/26] KVM: arm64: Introduce pKVM hyp VM and vCPU state at EL2 Date: Fri, 11 Nov 2022 19:06:14 +0000 Message-Id: <166819337067.3836113.13147674500457473286.b4-ty@kernel.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20221110190259.26861-1-will@kernel.org> References: <20221110190259.26861-1-will@kernel.org> MIME-Version: 1.0 X-SA-Exim-Connect-IP: 185.219.108.64 X-SA-Exim-Rcpt-To: will@kernel.org, kvmarm@lists.linux.dev, vdonnefort@google.com, james.morse@arm.com, mark.rutland@arm.com, alexandru.elisei@arm.com, kernel-team@android.com, qperret@google.com, philmd@linaro.org, suzuki.poulose@arm.com, tabba@google.com, kvm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, oliver.upton@linux.dev, seanjc@google.com, catalin.marinas@arm.com, chao.p.peng@linux.intel.com X-SA-Exim-Mail-From: maz@kernel.org X-SA-Exim-Scanned: No (on disco-boy.misterjones.org); SAEximRunCond expanded to false X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20221111_110625_741942_3A940C1C X-CRM114-Status: GOOD ( 16.73 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Thu, 10 Nov 2022 19:02:33 +0000, Will Deacon wrote: > This is version six of the pKVM EL2 state series, extending the pKVM > hypervisor code so that it can dynamically instantiate and manage VM > data structures without the host being able to access them directly. > These structures consist of a hyp VM, a set of hyp vCPUs and the stage-2 > page-table for the MMU. The pages used to hold the hypervisor structures > are returned to the host when the VM is destroyed. > > [...] As for Oliver's series, I've tentatively applied this to -next. I've dropped Oliver's patch for now, but kept the RFC one. Maybe I'll change my mind. Anyway, there was an interesting number of conflicts between the two series, which I tried to resolve as well as I could, but it is likely I broke something (although it compiles, so it must be perfect). Please have a look and shout if/when you spot something. [01/26] KVM: arm64: Move hyp refcount manipulation helpers to common header file commit: 0f4f7ae10ee4e6403659b2d9ddf05424eecde45b [02/26] KVM: arm64: Allow attaching of non-coalescable pages to a hyp pool commit: 72a5bc0f153ce8ca80e9abbd1d9adec7d586915a [03/26] KVM: arm64: Back the hypervisor 'struct hyp_page' array for all memory commit: 8e6bcc3a4502a0d8d065466efd888b6b59b85789 [04/26] KVM: arm64: Fix-up hyp stage-1 refcounts for all pages mapped at EL2 commit: 0d16d12eb26ef85602ef8a678d94825a66772774 [05/26] KVM: arm64: Unify identifiers used to distinguish host and hypervisor commit: 33bc332d4061e95db55594893c4f80105b1dd813 [06/26] KVM: arm64: Implement do_donate() helper for donating memory commit: 1ed5c24c26f48ff61dc5d97c655769821f36a622 [07/26] KVM: arm64: Prevent the donation of no-map pages commit: 43c1ff8b75011bc3e3e923adf31ba815864a2494 [08/26] KVM: arm64: Add helpers to pin memory shared with the hypervisor at EL2 commit: 9926cfce8dcb880255f30ab9ac930add787e1ead [09/26] KVM: arm64: Include asm/kvm_mmu.h in nvhe/mem_protect.h commit: 4d968b12e6bbe4440f4f220c41d779e02df8af1a [10/26] KVM: arm64: Add hyp_spinlock_t static initializer commit: 1c80002e3264552d8b9c0e162e09aa4087403716 [11/26] KVM: arm64: Rename 'host_kvm' to 'host_mmu' commit: 5304002dc3754a5663d75c977bfa2d9e3c08906d [12/26] KVM: arm64: Add infrastructure to create and track pKVM instances at EL2 commit: a1ec5c70d3f63d8a143fb83cd7f53bd8ff2f72c8 [13/26] KVM: arm64: Instantiate pKVM hypervisor VM and vCPU structures from EL1 commit: 9d0c063a4d1d10ef8e6288899b8524413e40cfa0 [14/26] KVM: arm64: Add per-cpu fixmap infrastructure at EL2 commit: aa6948f82f0b7060fbbac21911dc7996b144ba3c [15/26] KVM: arm64: Initialise hypervisor copies of host symbols unconditionally commit: 6c165223e9a6384aa1e934b90f2650e71adb972a [16/26] KVM: arm64: Provide I-cache invalidation by virtual address at EL2 commit: 13e248aab73d2f1c27b458ef09d38b44f3e5bf2e [17/26] KVM: arm64: Add generic hyp_memcache helpers commit: 717a7eebac106a5cc5d5493f8eef9cf4ae6edf19 [18/26] KVM: arm64: Consolidate stage-2 initialisation into a single function commit: 315775ff7c6de497dd07c3f6eff499fb538783eb [19/26] KVM: arm64: Instantiate guest stage-2 page-tables at EL2 commit: 60dfe093ec13b056856c672e1daa35134be38283 [20/26] KVM: arm64: Return guest memory from EL2 via dedicated teardown memcache commit: f41dff4efb918db68923a826e966ca62c7c8e929 [21/26] KVM: arm64: Unmap 'kvm_arm_hyp_percpu_base' from the host commit: fe41a7f8c0ee3ee2f682f8c28c7e1c5ff2be8a79 [22/26] KVM: arm64: Maintain a copy of 'kvm_arm_vmid_bits' at EL2 commit: 73f38ef2ae531b180685173e0923225551434fcb [23/26] KVM: arm64: Explicitly map 'kvm_vgic_global_state' at EL2 commit: 27eb26bfff5d358d42911d04bbecc62e659ec32b [24/26] KVM: arm64: Don't unnecessarily map host kernel sections at EL2 commit: 169cd0f8238f2598b85d2db2e15828e8f8da18e5 [25/26] KVM: arm64: Clean out the odd handling of completer_addr (no commit info) [26/26] KVM: arm64: Use the pKVM hyp vCPU structure in handle___kvm_vcpu_run() commit: be66e67f175096f283c9d5614c4991fc9e7ed975 Cheers, M. -- Without deviation from the norm, progress is not possible. _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel