From patchwork Wed Sep 22 12:46:52 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Fuad Tabba X-Patchwork-Id: 12510455 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-21.3 required=3.0 tests=BAYES_00,DKIMWL_WL_MED, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT, USER_IN_DEF_DKIM_WL autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 2EEFFC433F5 for ; Wed, 22 Sep 2021 12:47:09 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 17254611C9 for ; Wed, 22 Sep 2021 12:47:09 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236068AbhIVMsi (ORCPT ); Wed, 22 Sep 2021 08:48:38 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60730 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236082AbhIVMsh (ORCPT ); Wed, 22 Sep 2021 08:48:37 -0400 Received: from mail-qt1-x849.google.com (mail-qt1-x849.google.com [IPv6:2607:f8b0:4864:20::849]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 8D1F0C061574 for ; Wed, 22 Sep 2021 05:47:07 -0700 (PDT) Received: by mail-qt1-x849.google.com with SMTP id f34-20020a05622a1a2200b0029c338949c1so9012825qtb.8 for ; Wed, 22 Sep 2021 05:47:07 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20210112; h=date:message-id:mime-version:subject:from:to:cc; bh=yFOEbvnmLRE/MkTldpqRjjZcedskEwLRag9pY/Gsti8=; b=lqFiVOFnQ+0KhLoph58xwAtl+YvZwPQXFz7TkOFZ5ID33rHZ8/wh5S8eX3QOIhQI3s AvBhm2vjK6T/lB7ri+u4Pl81oSKqbJWOlGbpOaAMArLOz8DRgLT2whq7bHmNeBIJ+zcT 8HmFgRKSCbVoNfjXt41sG9VIEHy+P7U4k4tkHp0OPQ70jwdeJEdrEYqdlRqHdcVyN83N S5YkaxfymReqcbqI1j5CnxWnBzo7oYAR4jj1cW0rbOoYiySu109OviCq05WzH2nZcnLp 1bPohbKzJ+hJ5cd12GyXd3+GE3UCd76qxejPwwDTh1Zz8j98F8TPUhH+PLu8gIPsHuX6 oCUA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:date:message-id:mime-version:subject:from:to:cc; bh=yFOEbvnmLRE/MkTldpqRjjZcedskEwLRag9pY/Gsti8=; b=40mWkbcIvEpj8kmpNdZ2ISZikjShavnLUfkyUmDUBhhHeuXhrIWZaf0NmikJybonaG 3PYS/faPC+qYMo2gb6NqLGGxe3BLOntQAlp9ekWoYfacdcPuBEWD8l1mH38dlZVUOgzs xMYookl/bUIvmf+wYzBLbz9Q7dVahkr7aCGUuXfAl4mgymxmjy/hBrNHKI+pWJiTqGHc PHEnXUe1ncff3J3Hkb+x559Kp5YBaCwMOHcpTyMzhZ/LtrXMracPaH9z/3ZLXFuQQ4MN 7QyvEEUmWA8EECb5rUroFQQBWFGXpPHSoDcVwWtA3wdfEUoQhpidzdRZ63ulYTuCYOXm 8Wzg== X-Gm-Message-State: AOAM531ZX3yNS+7n55npu3S2zEXOO0LAry4Is0rgJ8jHAM1UPnTa4ewm T1tCgW6iNvkLkpF6QWKyYbjbrUc7hg== X-Google-Smtp-Source: ABdhPJyoWFoyStmCkS24R7d0GBY3bV8l/thty5+34iLzeNvMU3bFfF8UZu0rNinvkttL3hXSDtynpikIVA== X-Received: from tabba.c.googlers.com ([fda3:e722:ac3:cc00:28:9cb1:c0a8:482]) (user=tabba job=sendgmr) by 2002:ad4:5554:: with SMTP id v20mr36606923qvy.16.1632314826731; Wed, 22 Sep 2021 05:47:06 -0700 (PDT) Date: Wed, 22 Sep 2021 13:46:52 +0100 Message-Id: <20210922124704.600087-1-tabba@google.com> Mime-Version: 1.0 X-Mailer: git-send-email 2.33.0.464.g1972c5931b-goog Subject: [PATCH v6 00/12] KVM: arm64: Fixed features for protected VMs From: Fuad Tabba To: kvmarm@lists.cs.columbia.edu Cc: maz@kernel.org, will@kernel.org, james.morse@arm.com, alexandru.elisei@arm.com, suzuki.poulose@arm.com, mark.rutland@arm.com, christoffer.dall@arm.com, pbonzini@redhat.com, drjones@redhat.com, oupton@google.com, qperret@google.com, kvm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, kernel-team@android.com, tabba@google.com Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org Hi, Changes since v5 [1]: - Rebase on 5.15-rc2 - Include Marc's early exception handlers in the series - Refactoring and fixes (Drew, Marc) This patch series adds support for restricting CPU features for protected VMs in KVM (pKVM). For more background, please refer to the previous series [1]. This series is based on 5.15-rc2. You can find the applied series here [2]. Cheers, /fuad [1] https://lore.kernel.org/kvmarm/20210827101609.2808181-1-tabba@google.com/ [2] https://android-kvm.googlesource.com/linux/+/refs/heads/tabba/el2_fixed_feature_v6 Fuad Tabba (9): KVM: arm64: Add missing FORCE prerequisite in Makefile KVM: arm64: Pass struct kvm to per-EC handlers KVM: arm64: Add missing field descriptor for MDCR_EL2 KVM: arm64: Simplify masking out MTE in feature id reg KVM: arm64: Add handlers for protected VM System Registers KVM: arm64: Initialize trap registers for protected VMs KVM: arm64: Move sanitized copies of CPU features KVM: arm64: Trap access to pVM restricted features KVM: arm64: Handle protected guests at 32 bits Marc Zyngier (3): KVM: arm64: Move __get_fault_info() and co into their own include file KVM: arm64: Don't include switch.h into nvhe/kvm-main.c KVM: arm64: Move early handlers to per-EC handlers arch/arm64/include/asm/kvm_arm.h | 1 + arch/arm64/include/asm/kvm_asm.h | 1 + arch/arm64/include/asm/kvm_fixed_config.h | 195 ++++++++ arch/arm64/include/asm/kvm_host.h | 2 + arch/arm64/include/asm/kvm_hyp.h | 5 + arch/arm64/kvm/arm.c | 13 + arch/arm64/kvm/hyp/include/hyp/fault.h | 75 ++++ arch/arm64/kvm/hyp/include/hyp/switch.h | 221 ++++----- arch/arm64/kvm/hyp/include/nvhe/pkvm.h | 14 + arch/arm64/kvm/hyp/include/nvhe/sys_regs.h | 28 ++ arch/arm64/kvm/hyp/nvhe/Makefile | 4 +- arch/arm64/kvm/hyp/nvhe/hyp-main.c | 12 +- arch/arm64/kvm/hyp/nvhe/mem_protect.c | 8 +- arch/arm64/kvm/hyp/nvhe/pkvm.c | 186 ++++++++ arch/arm64/kvm/hyp/nvhe/switch.c | 117 +++++ arch/arm64/kvm/hyp/nvhe/sys_regs.c | 494 +++++++++++++++++++++ arch/arm64/kvm/hyp/vhe/switch.c | 17 + arch/arm64/kvm/sys_regs.c | 10 +- 18 files changed, 1257 insertions(+), 146 deletions(-) create mode 100644 arch/arm64/include/asm/kvm_fixed_config.h create mode 100644 arch/arm64/kvm/hyp/include/hyp/fault.h create mode 100644 arch/arm64/kvm/hyp/include/nvhe/pkvm.h create mode 100644 arch/arm64/kvm/hyp/include/nvhe/sys_regs.h create mode 100644 arch/arm64/kvm/hyp/nvhe/pkvm.c create mode 100644 arch/arm64/kvm/hyp/nvhe/sys_regs.c base-commit: e4e737bb5c170df6135a127739a9e6148ee3da82