From patchwork Mon Jun 24 21:24:43 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?C=C3=A9dric_Le_Goater?= X-Patchwork-Id: 13710142 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 CDB8AC2BD09 for ; Mon, 24 Jun 2024 21:27:12 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1sLrCn-0004oB-7M; Mon, 24 Jun 2024 17:26:29 -0400 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 1sLrCe-0004Vs-LB for qemu-devel@nongnu.org; Mon, 24 Jun 2024 17:26:20 -0400 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 1sLrCd-0006kK-0R for qemu-devel@nongnu.org; Mon, 24 Jun 2024 17:26:20 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1719264377; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=7I5Q9DDwwADFOIgEN65wvviElU7l4p2zecM8yB5Yl5I=; b=EfCBOSdNi9QaY6bXoamzK05AWV8U/+Gokj0D9p9l3bLRm8KjEM8NshitRBV9FaF6gCzCDP CsBsezMbXnNeaJdN4h34A7nNOCa9GjZ9B2YrB+ELJTmU1wMqmMdcjhM9CPcOjQr3uinicN vQDaBiHisy4g7wnmLsHKB5SKryGx5Bw= Received: from mx-prod-mc-05.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-133-pEjublzROTWxFpXS2uc3Bw-1; Mon, 24 Jun 2024 17:26:16 -0400 X-MC-Unique: pEjublzROTWxFpXS2uc3Bw-1 Received: from mx-prod-int-05.mail-002.prod.us-west-2.aws.redhat.com (mx-prod-int-05.mail-002.prod.us-west-2.aws.redhat.com [10.30.177.17]) (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-05.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id 1FC661956086; Mon, 24 Jun 2024 21:26:15 +0000 (UTC) Received: from corto.redhat.com (unknown [10.39.192.49]) by mx-prod-int-05.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTP id 0342E1956051; Mon, 24 Jun 2024 21:26:12 +0000 (UTC) From: =?utf-8?q?C=C3=A9dric_Le_Goater?= To: qemu-devel@nongnu.org Cc: Alex Williamson , Avihai Horon , Joao Martins , Zhenzhong Duan , Eric Auger , =?utf-8?q?C=C3=A9dric_Le_Goater?= Subject: [PULL 29/42] vfio/common: Extract vIOMMU code from vfio_sync_dirty_bitmap() Date: Mon, 24 Jun 2024 23:24:43 +0200 Message-ID: <20240624212456.350919-30-clg@redhat.com> In-Reply-To: <20240624212456.350919-1-clg@redhat.com> References: <20240624212456.350919-1-clg@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.0 on 10.30.177.17 Received-SPF: pass client-ip=170.10.129.124; envelope-from=clg@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: 10 X-Spam_score: 1.0 X-Spam_bar: + X-Spam_report: (1.0 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.207, 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_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, RCVD_IN_SBL_CSS=3.335, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=no 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 From: Avihai Horon Extract vIOMMU code from vfio_sync_dirty_bitmap() to a new function and restructure the code. This is done in preparation for optimizing vIOMMU device dirty page tracking. No functional changes intended. Signed-off-by: Avihai Horon Signed-off-by: Joao Martins [ clg: - Rebased on upstream - Fixed typo in commit log ] Reviewed-by: Zhenzhong Duan Tested-by: Eric Auger Signed-off-by: Cédric Le Goater --- hw/vfio/common.c | 63 +++++++++++++++++++++++++++++------------------- 1 file changed, 38 insertions(+), 25 deletions(-) diff --git a/hw/vfio/common.c b/hw/vfio/common.c index fe215918bdf66ddbe3c5db803e10ce1aa9756b90..f28641bad5cf4b71fcdc0a6c9d42b24c8d786248 100644 --- a/hw/vfio/common.c +++ b/hw/vfio/common.c @@ -1302,37 +1302,50 @@ vfio_sync_ram_discard_listener_dirty_bitmap(VFIOContainerBase *bcontainer, &vrdl); } +static int vfio_sync_iommu_dirty_bitmap(VFIOContainerBase *bcontainer, + MemoryRegionSection *section) +{ + VFIOGuestIOMMU *giommu; + bool found = false; + Int128 llend; + vfio_giommu_dirty_notifier gdn; + int idx; + + QLIST_FOREACH(giommu, &bcontainer->giommu_list, giommu_next) { + if (MEMORY_REGION(giommu->iommu_mr) == section->mr && + giommu->n.start == section->offset_within_region) { + found = true; + break; + } + } + + if (!found) { + return 0; + } + + gdn.giommu = giommu; + idx = memory_region_iommu_attrs_to_index(giommu->iommu_mr, + MEMTXATTRS_UNSPECIFIED); + + llend = int128_add(int128_make64(section->offset_within_region), + section->size); + llend = int128_sub(llend, int128_one()); + + iommu_notifier_init(&gdn.n, vfio_iommu_map_dirty_notify, IOMMU_NOTIFIER_MAP, + section->offset_within_region, int128_get64(llend), + idx); + memory_region_iommu_replay(giommu->iommu_mr, &gdn.n); + + return 0; +} + static int vfio_sync_dirty_bitmap(VFIOContainerBase *bcontainer, MemoryRegionSection *section, Error **errp) { ram_addr_t ram_addr; if (memory_region_is_iommu(section->mr)) { - VFIOGuestIOMMU *giommu; - - QLIST_FOREACH(giommu, &bcontainer->giommu_list, giommu_next) { - if (MEMORY_REGION(giommu->iommu_mr) == section->mr && - giommu->n.start == section->offset_within_region) { - Int128 llend; - vfio_giommu_dirty_notifier gdn = { .giommu = giommu }; - int idx = memory_region_iommu_attrs_to_index(giommu->iommu_mr, - MEMTXATTRS_UNSPECIFIED); - - llend = int128_add(int128_make64(section->offset_within_region), - section->size); - llend = int128_sub(llend, int128_one()); - - iommu_notifier_init(&gdn.n, - vfio_iommu_map_dirty_notify, - IOMMU_NOTIFIER_MAP, - section->offset_within_region, - int128_get64(llend), - idx); - memory_region_iommu_replay(giommu->iommu_mr, &gdn.n); - break; - } - } - return 0; + return vfio_sync_iommu_dirty_bitmap(bcontainer, section); } else if (memory_region_has_ram_discard_manager(section->mr)) { int ret;