From patchwork Fri Feb 9 15:59:14 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Eric Auger X-Patchwork-Id: 1897157 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=redhat.com header.i=@redhat.com header.a=rsa-sha256 header.s=mimecast20190719 header.b=c2V6KeuA; dkim-atps=neutral Authentication-Results: legolas.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org (client-ip=209.51.188.17; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=patchwork.ozlabs.org) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-ECDSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by legolas.ozlabs.org (Postfix) with ESMTPS id 4TWdtH6fkCz23j0 for ; Sat, 10 Feb 2024 03:03:03 +1100 (AEDT) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rYTJL-000133-PS; Fri, 09 Feb 2024 11:01:07 -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 1rYTJI-00012X-Ay for qemu-devel@nongnu.org; Fri, 09 Feb 2024 11:01:06 -0500 Received: from us-smtp-delivery-124.mimecast.com ([170.10.129.124]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rYTJ9-00064c-9T for qemu-devel@nongnu.org; Fri, 09 Feb 2024 11:01:03 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1707494454; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=LSraTH6/x1G27qzZu+/i75s2Ywz/KLneIkIzuuu8C04=; b=c2V6KeuAWPx+wMu0lRWSwUcuNu32H/73PBrtQP/gQQOMDt+a5XJBjW93UPO7AhDDQTyJDt 0wWqiYIfBrOB8AkYEqP1VvRaL4IviEo0tRPsJHVF6Lt6P1M+/pV0G7UqPhDJTMtmIB79UU G2hX6DpZbxDS94/8XGjIdqdnmA4lEOI= Received: from mimecast-mx02.redhat.com (mx-ext.redhat.com [66.187.233.73]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-645-r70eBU54NbOjlUKPUPlYXw-1; Fri, 09 Feb 2024 11:00:49 -0500 X-MC-Unique: r70eBU54NbOjlUKPUPlYXw-1 Received: from smtp.corp.redhat.com (int-mx09.intmail.prod.int.rdu2.redhat.com [10.11.54.9]) (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 mimecast-mx02.redhat.com (Postfix) with ESMTPS id 63B133C1E9DC; Fri, 9 Feb 2024 16:00:48 +0000 (UTC) Received: from laptop.redhat.com (unknown [10.39.192.197]) by smtp.corp.redhat.com (Postfix) with ESMTP id 91DCF492BC6; Fri, 9 Feb 2024 16:00:46 +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, haibo.xu@linaro.org, peter.maydell@linaro.org, richard.henderson@linaro.org, maz@kernel.org, gkulkarni@amperecomputing.com Subject: [RFC v2 2/5] hw/arm: Allow setting KVM vGIC maintenance IRQ Date: Fri, 9 Feb 2024 16:59:14 +0100 Message-ID: <20240209160039.677865-3-eric.auger@redhat.com> In-Reply-To: <20240209160039.677865-1-eric.auger@redhat.com> References: <20240209160039.677865-1-eric.auger@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.4.1 on 10.11.54.9 Received-SPF: pass client-ip=170.10.129.124; envelope-from=eric.auger@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -23 X-Spam_score: -2.4 X-Spam_bar: -- X-Spam_report: (-2.4 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.269, 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=-0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 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+incoming=patchwork.ozlabs.org@nongnu.org Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org From: Haibo Xu Allow virt arm machine to set the intid for the KVM GIC maintenance interrupt. Signed-off-by: Haibo Xu Signed-off-by: Miguel Luis Signed-off-by: Eric Auger --- v1 -> v2: - [Miguel] replaced the has_virt_extensions by the maintenance irq intid property. [Eric] restored kvm_device_check_attr and kvm_device_access standard usage and conditionally call those if the prop is set. --- hw/arm/virt.c | 3 +++ hw/intc/arm_gicv3_common.c | 1 + hw/intc/arm_gicv3_kvm.c | 21 +++++++++++++++++++++ include/hw/intc/arm_gicv3_common.h | 1 + 4 files changed, 26 insertions(+) diff --git a/hw/arm/virt.c b/hw/arm/virt.c index 368c2a415a..5214aca898 100644 --- a/hw/arm/virt.c +++ b/hw/arm/virt.c @@ -750,6 +750,9 @@ static void create_gic(VirtMachineState *vms, MemoryRegion *mem) OBJECT(mem), &error_fatal); qdev_prop_set_bit(vms->gic, "has-lpi", true); } + } else { + qdev_prop_set_uint32(vms->gic, "maintenance-interrupt-id", + ARCH_GIC_MAINT_IRQ); } } else { if (!kvm_irqchip_in_kernel()) { diff --git a/hw/intc/arm_gicv3_common.c b/hw/intc/arm_gicv3_common.c index cb55c72681..df056dc35c 100644 --- a/hw/intc/arm_gicv3_common.c +++ b/hw/intc/arm_gicv3_common.c @@ -564,6 +564,7 @@ static Property arm_gicv3_common_properties[] = { DEFINE_PROP_UINT32("revision", GICv3State, revision, 3), DEFINE_PROP_BOOL("has-lpi", GICv3State, lpi_enable, 0), DEFINE_PROP_BOOL("has-security-extensions", GICv3State, security_extn, 0), + DEFINE_PROP_UINT32("maintenance-interrupt-id", GICv3State, maint_irq, 0), /* * Compatibility property: force 8 bits of physical priority, even * if the CPU being emulated should have fewer. diff --git a/hw/intc/arm_gicv3_kvm.c b/hw/intc/arm_gicv3_kvm.c index 77eb37e131..23fad60515 100644 --- a/hw/intc/arm_gicv3_kvm.c +++ b/hw/intc/arm_gicv3_kvm.c @@ -22,6 +22,7 @@ #include "qemu/osdep.h" #include "qapi/error.h" #include "hw/intc/arm_gicv3_common.h" +#include "hw/arm/virt.h" #include "qemu/error-report.h" #include "qemu/module.h" #include "sysemu/kvm.h" @@ -820,6 +821,26 @@ static void kvm_arm_gicv3_realize(DeviceState *dev, Error **errp) return; } + if (s->maint_irq) { + int ret; + + ret = kvm_device_check_attr(s->dev_fd, + KVM_DEV_ARM_VGIC_GRP_MAINT_IRQ, 0); + if (!ret) { + error_setg_errno(errp, errno, + "VGICv3 setting maintenance IRQ is not " + "supported by this host kernel"); + return; + } + + ret = kvm_device_access(s->dev_fd, KVM_DEV_ARM_VGIC_GRP_MAINT_IRQ, 0, + &s->maint_irq, true, errp); + if (ret) { + error_setg_errno(errp, errno, "Failed to set VGIC maintenance IRQ"); + return; + } + } + multiple_redist_region_allowed = kvm_device_check_attr(s->dev_fd, KVM_DEV_ARM_VGIC_GRP_ADDR, KVM_VGIC_V3_ADDR_TYPE_REDIST_REGION); diff --git a/include/hw/intc/arm_gicv3_common.h b/include/hw/intc/arm_gicv3_common.h index 4e2fb518e7..4ff421a165 100644 --- a/include/hw/intc/arm_gicv3_common.h +++ b/include/hw/intc/arm_gicv3_common.h @@ -246,6 +246,7 @@ struct GICv3State { uint32_t num_cpu; uint32_t num_irq; uint32_t revision; + uint32_t maint_irq; bool lpi_enable; bool security_extn; bool force_8bit_prio;