From patchwork Thu Jan 16 08:32:13 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Eric Auger X-Patchwork-Id: 13941446 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 lists.gnu.org (lists.gnu.org [209.51.188.17]) (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 158FBC02180 for ; Thu, 16 Jan 2025 08:35:22 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1tYLKF-0007RJ-EW; Thu, 16 Jan 2025 03:34:03 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1tYLKC-0007QG-Nn for qemu-devel@nongnu.org; Thu, 16 Jan 2025 03:34:00 -0500 Received: from us-smtp-delivery-124.mimecast.com ([170.10.133.124]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1tYLK8-0005U2-7v for qemu-devel@nongnu.org; Thu, 16 Jan 2025 03:34:00 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1737016434; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=9jBXBuZ0HenLhru4iiFp+UeircELBFsUWyTTPkALPLo=; b=aaOixg8k+YEEfASqOSqNmGuNn0FTfSLsvGrB/1c7u7a7A7lTzZbaQL6b6u81HIdGFlCd/4 um4xLmai1VyNX0lV0p3FihMMyBssFrn7fzI4IA3318NeGXEBm99H6I3loxzI4OiA80Q8yk mRsXZxOGylwk3tA9qEO+tAmkmnxHwTg= Received: from mx-prod-mc-03.mail-002.prod.us-west-2.aws.redhat.com (ec2-54-186-198-63.us-west-2.compute.amazonaws.com [54.186.198.63]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-376-LQYQj3hlOnuBCYak42e1Jg-1; Thu, 16 Jan 2025 03:33:50 -0500 X-MC-Unique: LQYQj3hlOnuBCYak42e1Jg-1 X-Mimecast-MFC-AGG-ID: LQYQj3hlOnuBCYak42e1Jg Received: from mx-prod-int-01.mail-002.prod.us-west-2.aws.redhat.com (mx-prod-int-01.mail-002.prod.us-west-2.aws.redhat.com [10.30.177.4]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mx-prod-mc-03.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id C28E019560B7; Thu, 16 Jan 2025 08:33:48 +0000 (UTC) Received: from laptop.redhat.com (unknown [10.39.193.32]) by mx-prod-int-01.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTP id C5B0630001BE; Thu, 16 Jan 2025 08:33:42 +0000 (UTC) From: Eric Auger To: eric.auger.pro@gmail.com, eric.auger@redhat.com, qemu-devel@nongnu.org, qemu-arm@nongnu.org, miguel.luis@oracle.com, peter.maydell@linaro.org, richard.henderson@linaro.org, maz@kernel.org, gkulkarni@amperecomputing.com, gankulkarni@os.amperecomputing.com Subject: [RFC v4 0/5] ARM Nested Virt Support Date: Thu, 16 Jan 2025 09:32:13 +0100 Message-ID: <20250116083339.674344-1-eric.auger@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.4.1 on 10.30.177.4 Received-SPF: pass client-ip=170.10.133.124; envelope-from=eric.auger@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -39 X-Spam_score: -4.0 X-Spam_bar: ---- X-Spam_report: (-4.0 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.141, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H2=-1.793, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, RCVD_IN_VALIDITY_SAFE_BLOCKED=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=unavailable autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org This is a rebase on top of qemu v9.2.0 and tested against Marc's nv-next from Jan 9, 2025. As this branch is continuously evolving I put a snapshot at https://github.com/eauger/linux/tree/nv_next_jan9_2025. This was tested with rhel L1 guest (4k/64k) and various L2 guests (buildroot, debian, rhel 4k/64k). I used mainline edk2. The host needs to be booted with "kvm-arm.mode=nested" option and qemu needs to be invoked with : -machine virt,virtualization=on This series can be found at: https://github.com/eauger/qemu/tree/v9.2.0-nv-rfcv4 Previous version from Miguel: [1] https://lore.kernel.org/all/20230227163718.62003-1-miguel.luis@oracle.com/ Previous version from Haibo: [2] https://lore.kernel.org/qemu-devel/cover.1617281290.git.haibo.xu@linaro.org/ --- v3 -> v4: - fix: only set maint_irq if vms->virt v2 -> v3: - KVM EL2 only is set if virtualization option is set - fixes regression with virtualization=off - Add checks against unsupported GIC configs until the kernel does Eric Auger (1): linux-headers: update to nv-next (Jan 9) Haibo Xu (4): hw/arm: Allow setting KVM vGIC maintenance IRQ target/arm/kvm: Add helper to detect EL2 when using KVM target/arm: Enable feature ARM_FEATURE_EL2 if EL2 is supported hw/arm/virt: Allow virt extensions with KVM include/hw/intc/arm_gicv3_common.h | 1 + linux-headers/asm-arm64/kvm.h | 1 + linux-headers/linux/kvm.h | 4 +++- target/arm/kvm_arm.h | 12 ++++++++++++ hw/arm/virt.c | 13 ++++++++++++- hw/intc/arm_gicv3_common.c | 1 + hw/intc/arm_gicv3_kvm.c | 21 +++++++++++++++++++++ target/arm/kvm.c | 21 +++++++++++++++++++++ 8 files changed, 72 insertions(+), 2 deletions(-)