From patchwork Fri Jun 14 14:45:36 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Marc Zyngier X-Patchwork-Id: 13698785 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 15E61C27C7B for ; Fri, 14 Jun 2024 14:46:41 +0000 (UTC) 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:Content-Transfer-Encoding: MIME-Version:Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-Type: Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender: Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References:List-Owner; bh=30mTkQk/+DcBrMJCg2HVtcP8nLfgKicUcz/n6XAcees=; b=Hk0iqSCqOa4z4WchorEpT7Bf+r cxVVATCFjPhG9z8CDq7ZvDKwhwZrEQuzioPj6z6HZc7Qn7un3ZfyhwrF4W1ozx5FVPF0TFeYRWv1J YSPuDPgFfVTdw1FfyDlwpIqdY3vHQwJ6AweSgry+KRESdse6mrDlHZZzSaA+uxLvQFue5zoQJEnI5 gAYcEy++qbeEj/o4MtvwoCFMfTBFTX0L/BPF5TcMF9HVqt7TS3rwI/7zY5nNszAUEkWzZY5XpSWJx 0zgdGPUIFmoMKczDLQQnTt9mQD+npmetDD9KBAqfLSVDjQs3iehDWQyA+mP66jdjbFkB36nZtoO4T I62nwYQA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1sI8CA-0000000359C-2PMn; Fri, 14 Jun 2024 14:46:26 +0000 Received: from sin.source.kernel.org ([2604:1380:40e1:4800::1]) by bombadil.infradead.org with esmtps (Exim 4.97.1 #2 (Red Hat Linux)) id 1sI8C2-0000000351g-1icF for linux-arm-kernel@lists.infradead.org; Fri, 14 Jun 2024 14:46:21 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by sin.source.kernel.org (Postfix) with ESMTP id 68D5ECE29F0; Fri, 14 Jun 2024 14:46:16 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id A4F1AC3277B; Fri, 14 Jun 2024 14:46:15 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1718376375; bh=xsQtZpEJDOrdnBJYSovlHe1ZmVqfDD6Gyi/ImZOHD20=; h=From:To:Cc:Subject:Date:From; b=e64ZmcbPRiWGq5dZFHfjnqmZ+BZioQz3KH6FzSLQua8M3NgX8rugnxCWxrwcUGaF3 hjG3/56JxF7Mk3iLhh93E1S/ZPp1Ubi8Wi1nBtDPaER06Q8LSx3nHMJj6l3D7z1lo7 fjeYmlEO/S2LtBPteRK3rO2wmOysYypWGVgMYS9Ec7m7eLPWF2Ubq+waw/TV/kjEfV rVyFFwC/ZbhBMaSoo8NIcr27UCKX0DcotO1n5fIavBBMJz9oqdVxhWdFwLOJ68HYf1 MQtudKTk5RmtipyE6yk8K5EhpwJmXQs9C47iT8JextNFCsg5wxUIYeQeIurJDeL8mP 5WbxKHVYS79oQ== 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 1sI8Bx-003wb4-MV; Fri, 14 Jun 2024 15:46:13 +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 v3 00/16] KVM: arm64: nv: Shadow stage-2 page table handling Date: Fri, 14 Jun 2024 15:45:36 +0100 Message-Id: <20240614144552.2773592-1-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-20240614_074618_827454_DADBEFDD X-CRM114-Status: UNSURE ( 8.96 ) 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 thurd version of the shadow stage-2 handling for NV support on arm64. * From v2 [2] - Simplified the S2 walker by dropping a bunch of redundant fields from the walker info structure - Added some more lockdep assertions (Oliver) - Added more precise comments for the TTL-like annotations in the shadow S2 (Oliver) * 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_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 | 213 ++++++-- arch/arm64/kvm/nested.c | 781 +++++++++++++++++++++++++++- arch/arm64/kvm/reset.c | 6 + arch/arm64/kvm/sys_regs.c | 398 ++++++++++++++ 13 files changed, 1775 insertions(+), 41 deletions(-)