From patchwork Tue Jan 23 18:15:55 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Eric Auger X-Patchwork-Id: 13527947 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 D2C8CC47258 for ; Tue, 23 Jan 2024 18:19:04 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rSLLm-0007CM-JS; Tue, 23 Jan 2024 13:18:19 -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 1rSLLb-00073G-Qr for qemu-devel@nongnu.org; Tue, 23 Jan 2024 13:18:07 -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 1rSLLZ-00063s-Jo for qemu-devel@nongnu.org; Tue, 23 Jan 2024 13:18:07 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1706033885; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=7nSeV79E+t9oTnAn/7HnXx00d5vhgYI0Nd2a/g3zPQY=; b=Yo2pf499J32CzvncbGhgMw2UNMOto1tI0z0PJRWRgIc6s9hw1Su+2cqsfFDDCjDjXNN7Wz FOZ8r1jLJcegrVfSdzbKJi4LFtrRtYcA5dR8ODSlzWbFERA8uM7pDXxRHaUIi24quC8N2F Z3XbELh0Aw7smYrUKCruaKFR4b+4XxA= Received: from mimecast-mx02.redhat.com (mimecast-mx02.redhat.com [66.187.233.88]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-252-1nSc43LZPOK4Rquay1pofQ-1; Tue, 23 Jan 2024 13:18:01 -0500 X-MC-Unique: 1nSc43LZPOK4Rquay1pofQ-1 Received: from smtp.corp.redhat.com (int-mx06.intmail.prod.int.rdu2.redhat.com [10.11.54.6]) (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 4233C862DC4; Tue, 23 Jan 2024 18:18:01 +0000 (UTC) Received: from laptop.redhat.com (unknown [10.39.192.75]) by smtp.corp.redhat.com (Postfix) with ESMTP id F149A2166B32; Tue, 23 Jan 2024 18:17:58 +0000 (UTC) From: Eric Auger To: eric.auger.pro@gmail.com, eric.auger@redhat.com, qemu-devel@nongnu.org, qemu-arm@nongnu.org, jean-philippe@linaro.org, alex.williamson@redhat.com, peter.maydell@linaro.org, zhenzhong.duan@intel.com, peterx@redhat.com, yanghliu@redhat.com Cc: mst@redhat.com, clg@redhat.com, jasowang@redhat.com Subject: [PATCH 1/3] virtio-iommu: Add an option to define the input range width Date: Tue, 23 Jan 2024 19:15:55 +0100 Message-ID: <20240123181753.413961-2-eric.auger@redhat.com> In-Reply-To: <20240123181753.413961-1-eric.auger@redhat.com> References: <20240123181753.413961-1-eric.auger@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.4.1 on 10.11.54.6 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: -33 X-Spam_score: -3.4 X-Spam_bar: --- X-Spam_report: (-3.4 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-1.327, 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_H3=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham 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 aw-bits is a new option that allows to set the bit width of the input address range. This value will be used as a default for the device config input_range.end. By default it is set to 64 bits which is the current value. Signed-off-by: Eric Auger --- include/hw/virtio/virtio-iommu.h | 1 + hw/virtio/virtio-iommu.c | 4 +++- 2 files changed, 4 insertions(+), 1 deletion(-) diff --git a/include/hw/virtio/virtio-iommu.h b/include/hw/virtio/virtio-iommu.h index 781ebaea8f..5fbe4677c2 100644 --- a/include/hw/virtio/virtio-iommu.h +++ b/include/hw/virtio/virtio-iommu.h @@ -66,6 +66,7 @@ struct VirtIOIOMMU { bool boot_bypass; Notifier machine_done; bool granule_frozen; + uint8_t aw_bits; }; #endif diff --git a/hw/virtio/virtio-iommu.c b/hw/virtio/virtio-iommu.c index ec2ba11d1d..e7f299e0c6 100644 --- a/hw/virtio/virtio-iommu.c +++ b/hw/virtio/virtio-iommu.c @@ -1314,7 +1314,8 @@ static void virtio_iommu_device_realize(DeviceState *dev, Error **errp) */ s->config.bypass = s->boot_bypass; s->config.page_size_mask = qemu_real_host_page_mask(); - s->config.input_range.end = UINT64_MAX; + s->config.input_range.end = + s->aw_bits == 64 ? UINT64_MAX : BIT_ULL(s->aw_bits) - 1; s->config.domain_range.end = UINT32_MAX; s->config.probe_size = VIOMMU_PROBE_SIZE; @@ -1525,6 +1526,7 @@ static Property virtio_iommu_properties[] = { DEFINE_PROP_LINK("primary-bus", VirtIOIOMMU, primary_bus, TYPE_PCI_BUS, PCIBus *), DEFINE_PROP_BOOL("boot-bypass", VirtIOIOMMU, boot_bypass, true), + DEFINE_PROP_UINT8("aw-bits", VirtIOIOMMU, aw_bits, 64), DEFINE_PROP_END_OF_LIST(), };