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 12D65CCFA13 for ; Thu, 30 Apr 2026 11:16:38 +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:References:In-Reply-To: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:List-Owner; bh=D2LtQD8pZs6oI2DhWYcXuaGFcRtBeIKav/R8T2ZWcB0=; b=Clhjbc/G7fZKftsyjZh8R2Uppp jlqxk31OmQKVg8l7m0z2MEKezeEWr9hBnFDzzbYjbd5d3P5s+YNqyDYfdzRmW3gb7/gK8jJiY28Ea 1kE0MD3imUnDUimrxgiuxuiXLoX2o/yAaPoZjup+lnEElR5Y/xAbRfi4YNS9+cT2eku6ErPQMhKub vmm+vDTjbM60Ej0aoP/0T6rSOE8NLDR/n9HNL9XuNoskY/eicT868UMSxaY5RSY7oE30ytR1Gu0br 77Si9YFKnZquz95uuOnvBSSOavG7p+qhO3GMn/h4A2H1htxcvhENc9tZf4Xm745ZL0C7KakJVGzoY 961ZlwlA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1wIPNf-00000005LoH-2q8A; Thu, 30 Apr 2026 11:16:31 +0000 Received: from desiato.infradead.org ([2001:8b0:10b:1:d65d:64ff:fe57:4e05]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1wIPNV-00000005LeZ-1Coi for linux-arm-kernel@bombadil.infradead.org; Thu, 30 Apr 2026 11:16:21 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=desiato.20200630; h=Content-Transfer-Encoding:MIME-Version :References:In-Reply-To:Message-ID:Date:Subject:Cc:To:From:Sender:Reply-To: Content-Type:Content-ID:Content-Description; bh=D2LtQD8pZs6oI2DhWYcXuaGFcRtBeIKav/R8T2ZWcB0=; b=glorQYIcHl9UvkfYgJ0VMwq5ga wXsu1waJYIO92g4OGxN+7a+b34yYgyWICGuf6Uf2j0GkC5pig0krQKcZWEyDH9r/Zm1uXySVMLLCx Ks9HPdeUI1BhiZnwhbZa7nk1Yf3x7T5rFA4fCRm3fHIBfFNu/lCZ+Gy+GIFCmAwTR5SrWSB3SAz8l 7jKMVzRvBFiWPTQjSSXcOQP2TmMOSJ7vKE5eI7pEpyQmIDffeQzBskdO6w2G6E3FbrTnTB9rHxrvK 4B6MxnkR/7ESmwbj84C2H6p6PDVXCwh2Tsv7AOFf/JbQpQIu6qIKs8A4ZVbZy0vWyD7T5wPLVrh8N e/TFyVTw==; Received: from foss.arm.com ([217.140.110.172]) by desiato.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1wIPNQ-00000007DsV-3YXZ for linux-arm-kernel@lists.infradead.org; Thu, 30 Apr 2026 11:16:19 +0000 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 0DC61356C; Thu, 30 Apr 2026 04:16:10 -0700 (PDT) Received: from devkitleo.cambridge.arm.com (devkitleo.cambridge.arm.com [10.1.196.90]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 18E533F763; Thu, 30 Apr 2026 04:16:10 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=arm.com; s=foss; t=1777547775; bh=/RURBevpFF+4tw+ka7Tw3QDbKLsEWw0aWfJtqGVfHwQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Dg83rIEnCnvnNNd90W6UyyYmALfyt5w3xkYcgsMDx7kJQnSLWr+aI1bKWqOcI7gUb f3YA79bgia7x7C+As0zyTHsMVTPe98UnOnrZcgz57AqdzZNuP3ALca1cAQCPqPWKxP gHZ6XNUy68+rW5XuA+jTKVIrUYB6Ky9olnogHKH4= From: Leonardo Bras To: Catalin Marinas , Will Deacon , Leonardo Bras , Marc Zyngier , Oliver Upton , Joey Gouly , Suzuki K Poulose , Zenghui Yu , "Rafael J. Wysocki" , Len Brown , Saket Dumbre , Paolo Bonzini , Chengwen Feng , Jonathan Cameron , Kees Cook , =?UTF-8?q?Miko=C5=82aj=20Lenczewski?= , Ryan Roberts , Yang Shi , Thomas Huth , mrigendrachaubey , Yeoreum Yun , Mark Brown , Kevin Brodsky , James Clark , Ard Biesheuvel , Fuad Tabba , Raghavendra Rao Ananta , Nathan Chancellor , Vincent Donnefort , Lorenzo Pieralisi , Sascha Bischoff , Anshuman Khandual , Tian Zheng , Wei-Lin Chang Cc: linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, kvmarm@lists.linux.dev, linux-acpi@vger.kernel.org, acpica-devel@lists.linux.dev, kvm@vger.kernel.org Subject: [PATCH v1 12/12] KVM: arm64: Enable KVM_HW_DIRTY_BIT Date: Thu, 30 Apr 2026 12:14:16 +0100 Message-ID: <20260430111424.3479613-14-leo.bras@arm.com> X-Mailer: git-send-email 2.54.0 In-Reply-To: <20260430111424.3479613-2-leo.bras@arm.com> References: <20260430111424.3479613-2-leo.bras@arm.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260430_121617_666348_AED5A2E9 X-CRM114-Status: GOOD ( 10.79 ) 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 Set the corresponding bit to enable hardware accelerated dirty-bitmap and dirty-ring cleaning for arm64. Actually using acceleration depends on the cpus enabling FEAT_HACDBS as well as the pre-requisite features for it, such as FEAT_HDBSS and FEAT_HAFDBS. Also, add myself as maintainer for the new bits introduced. Signed-off-by: Leonardo Bras --- MAINTAINERS | 7 +++++++ arch/arm64/kvm/Kconfig | 1 + 2 files changed, 8 insertions(+) diff --git a/MAINTAINERS b/MAINTAINERS index d25342ca8aa1..4b8a2b05b916 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -2069,20 +2069,27 @@ F: arch/arm64/boot/dts/Makefile ARM ARCHITECTED TIMER DRIVER M: Mark Rutland M: Marc Zyngier L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) S: Maintained F: arch/arm/include/asm/arch_timer.h F: arch/arm64/include/asm/arch_timer.h F: drivers/clocksource/arm_arch_timer.c F: drivers/clocksource/arm_arch_timer_mmio.c +ARM STAGE-2 DIRTY-BIT TRACKER/CLEANER ACCELERATOR +M: Leonardo Bras +L: kvmarm@lists.linux.dev +S: Maintained +F: arch/arm64/include/asm/kvm_dirty_bit.h +F: arch/arm64/kvm/dirty_bit.c + ARM ETHOS-U NPU DRIVER M: Rob Herring (Arm) M: Tomeu Vizoso L: dri-devel@lists.freedesktop.org S: Supported T: git https://gitlab.freedesktop.org/drm/misc/kernel.git F: drivers/accel/ethosu/ F: include/uapi/drm/ethosu_accel.h ARM GENERIC INTERRUPT CONTROLLER DRIVERS diff --git a/arch/arm64/kvm/Kconfig b/arch/arm64/kvm/Kconfig index 449154f9a485..db8487bf738b 100644 --- a/arch/arm64/kvm/Kconfig +++ b/arch/arm64/kvm/Kconfig @@ -27,20 +27,21 @@ menuconfig KVM select VIRT_XFER_TO_GUEST_WORK select KVM_VFIO select HAVE_KVM_DIRTY_RING_ACQ_REL select NEED_KVM_DIRTY_RING_WITH_BITMAP select HAVE_KVM_MSI select HAVE_KVM_IRQCHIP select HAVE_KVM_IRQ_ROUTING select HAVE_KVM_IRQ_BYPASS select HAVE_KVM_READONLY_MEM select HAVE_KVM_VCPU_RUN_PID_CHANGE + select HAVE_KVM_HW_DIRTY_BIT if ACPI select SCHED_INFO select GUEST_PERF_EVENTS if PERF_EVENTS select KVM_GUEST_MEMFD help Support hosting virtualized guest machines. If unsure, say N. if KVM -- 2.54.0