From patchwork Wed May 29 14:56:12 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Marc Zyngier X-Patchwork-Id: 13679065 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 57DB3C27C43 for ; Wed, 29 May 2024 14:56:54 +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: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:In-Reply-To:References: List-Owner; bh=sdMzC87w/qauHTHchjJ0VlWgf08Bs+KHtJnfzNDUiv4=; b=4dtzPDLUoJ4Klj n5R7ILGyOcjqsESNkkZyfsm4zRk4cYcvydhZHq06IIvHDM36JnMCiyxMfWapgFMYPFlvKYfOFNj2K r8H2YP6pLs3/Q7SGuO/a+QTeAGv9Iw+EjYehCWmMwwBY1abdwoNJ25tMnU/xUzzUGGqIvPTh5cL/r oMxwOVYuIbuiEzF+EllRw6Ezku7G5IgxgO2iVdH04uAwklGk0nSVHp1goomjZFCicTF4DTpmhVck6 MDIS+ZNTSCvu+Rq6+hD67rCN77+zyBKrCvs3MCtK9UJvLSqQo4ZlRaL4OMV1b4KTGLVY8Z/tPVR0G T+TZd7ZUtDwhee1Nm9kg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1sCKjF-00000004ZdB-3tjY; Wed, 29 May 2024 14:56:38 +0000 Received: from dfw.source.kernel.org ([139.178.84.217]) by bombadil.infradead.org with esmtps (Exim 4.97.1 #2 (Red Hat Linux)) id 1sCKjD-00000004Zal-0Iys for linux-arm-kernel@lists.infradead.org; Wed, 29 May 2024 14:56:36 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by dfw.source.kernel.org (Postfix) with ESMTP id 4371F611F9; Wed, 29 May 2024 14:56:34 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id E946DC113CC; Wed, 29 May 2024 14:56:33 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1716994594; bh=mzzpY2WDUEdT5O0hM4sNQHoxuJb2hV42TrdHN6NeMXM=; h=From:To:Cc:Subject:Date:From; b=cj1FZJEQCC7h2MvPAh0vgcPUDiPEg28hhIEp/P+508Cl4T2uxTVu+ZN/QJGe5wx2I LM2AONmqpdCvXDL6+5sTrilCRW7+iAh10/RssIaVoX/LJUXvfQXqGnGBzO+yckyIej 9hNvjUfhzu5//KU1cTwXODJ4TwI1kQpKohDYuVoPeZZjjksQaw9/VPbTzUjT1tQkQh w3/BEuesJGKJk4/UEYZdMfpnoKZWeh1y1e1TNOSSkc8REAcYFAMHMEkT29iJhHDqjW eYULaxh/M/getvzZL/2aKAkk17rubV6DyFOQeHyVY12YxIn5F3gboKyx+09bncplov i6Mfqfj7V10kA== 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 1sCKj9-00GekF-UL; Wed, 29 May 2024 15:56:32 +0100 From: Marc Zyngier To: kvmarm@lists.linux.dev, kvm@vger.kernel.org, linux-arm-kernel@lists.infradead.org Cc: James Morse , Suzuki K Poulose , Oliver Upton , Zenghui Yu , Joey Gouly , Alexandru Elisei , Christoffer Dall , Ganapatrao Kulkarni Subject: [PATCH v2 00/16] KVM: arm64: nv: Shadow stage-2 page table handling Date: Wed, 29 May 2024 15:56:12 +0100 Message-Id: <20240529145628.3272630-1-maz@kernel.org> X-Mailer: git-send-email 2.39.2 MIME-Version: 1.0 X-SA-Exim-Connect-IP: 185.219.108.64 X-SA-Exim-Rcpt-To: kvmarm@lists.linux.dev, kvm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, james.morse@arm.com, suzuki.poulose@arm.com, oliver.upton@linux.dev, yuzenghui@huawei.com, joey.gouly@arm.com, alexandru.elisei@arm.com, christoffer.dall@arm.com, gankulkarni@os.amperecomputing.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-20240529_075635_280652_BB37B464 X-CRM114-Status: UNSURE ( 9.51 ) X-CRM114-Notice: Please train this message. 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: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Here's the second version of the shadow stage-2 handling for NV support on arm64. * From v1 [1] - Reworked the allocation of shadow S2 structures at init time to be slightly clearer - Lots of small cleanups - Rebased on v6.10-rc1 [1] https://lore.kernel.org/r/20240409175448.3507472-1-maz@kernel.org Christoffer Dall (2): KVM: arm64: nv: Implement nested Stage-2 page table walk logic KVM: arm64: nv: Unmap/flush shadow stage 2 page tables Marc Zyngier (14): KVM: arm64: nv: Support multiple nested Stage-2 mmu structures KVM: arm64: nv: Handle shadow stage 2 page faults KVM: arm64: nv: Add Stage-1 EL2 invalidation primitives KVM: arm64: nv: Handle EL2 Stage-1 TLB invalidation KVM: arm64: nv: Handle TLB invalidation targeting L2 stage-1 KVM: arm64: nv: Handle TLBI VMALLS12E1{,IS} operations KVM: arm64: nv: Handle TLBI ALLE1{,IS} operations KVM: arm64: nv: Handle TLBI IPAS2E1{,IS} operations KVM: arm64: nv: Handle FEAT_TTL hinted TLB operations KVM: arm64: nv: Tag shadow S2 entries with guest's leaf S2 level KVM: arm64: nv: Invalidate TLBs based on shadow S2 TTL-like information KVM: arm64: nv: Add handling of outer-shareable TLBI operations KVM: arm64: nv: Add handling of range-based TLBI operations KVM: arm64: nv: Add handling of NXS-flavoured TLBI operations arch/arm64/include/asm/esr.h | 1 + arch/arm64/include/asm/kvm_asm.h | 2 + arch/arm64/include/asm/kvm_emulate.h | 1 + arch/arm64/include/asm/kvm_host.h | 36 ++ arch/arm64/include/asm/kvm_mmu.h | 26 + arch/arm64/include/asm/kvm_nested.h | 127 +++++ arch/arm64/include/asm/sysreg.h | 17 + arch/arm64/kvm/arm.c | 11 + arch/arm64/kvm/hyp/vhe/switch.c | 51 +- arch/arm64/kvm/hyp/vhe/tlb.c | 147 +++++ arch/arm64/kvm/mmu.c | 211 ++++++-- arch/arm64/kvm/nested.c | 780 ++++++++++++++++++++++++++- arch/arm64/kvm/reset.c | 6 + arch/arm64/kvm/sys_regs.c | 398 ++++++++++++++ 14 files changed, 1773 insertions(+), 41 deletions(-)