From patchwork Wed Aug 26 14:36:40 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Eugenio Perez Martin X-Patchwork-Id: 11738555 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id DC6A4138A for ; Wed, 26 Aug 2020 14:39:48 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id B2E8B214F1 for ; Wed, 26 Aug 2020 14:39:48 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="BHT026J7" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org B2E8B214F1 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Received: from localhost ([::1]:54748 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kAwaZ-0001Og-Oj for patchwork-qemu-devel@patchwork.kernel.org; Wed, 26 Aug 2020 10:39:47 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:46260) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kAwYX-0004sK-Rl for qemu-devel@nongnu.org; Wed, 26 Aug 2020 10:37:41 -0400 Received: from us-smtp-delivery-124.mimecast.com ([216.205.24.124]:40192) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.90_1) (envelope-from ) id 1kAwYW-0006Cd-Es for qemu-devel@nongnu.org; Wed, 26 Aug 2020 10:37:41 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1598452658; 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=myzuQLMFrzrzm+iQjl6HxCd2/viSh0aOZ9bTWanImV8=; b=BHT026J70uVOjV/gQy7OvD06bdjUl9b5B2JZMspjz6RSL8M//heHYbhyTpW9E8HE1dkeif qxZvpe/8sqjYQIsr1CkffLpoR/9AWgYUuInYmZWW1G3gL3HnKeBetZ0vCOBte9bji9D0AJ VEYBjqopj+/ZJPdAPXmK1DTKvoBxUHY= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-491-ye5iZrQCM9O2I99XGP3gFQ-1; Wed, 26 Aug 2020 10:37:36 -0400 X-MC-Unique: ye5iZrQCM9O2I99XGP3gFQ-1 Received: from smtp.corp.redhat.com (int-mx03.intmail.prod.int.phx2.redhat.com [10.5.11.13]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id C448980F043; Wed, 26 Aug 2020 14:37:34 +0000 (UTC) Received: from eperezma.remote.csb (ovpn-115-59.ams2.redhat.com [10.36.115.59]) by smtp.corp.redhat.com (Postfix) with ESMTP id 04B2D76E00; Wed, 26 Aug 2020 14:37:27 +0000 (UTC) From: =?utf-8?q?Eugenio_P=C3=A9rez?= To: qemu-devel@nongnu.org, Peter Xu Subject: [RFC v6 02/13] memory: Add IOMMUTLBNotificationType to IOMMUTLBEntry Date: Wed, 26 Aug 2020 16:36:40 +0200 Message-Id: <20200826143651.7915-3-eperezma@redhat.com> In-Reply-To: <20200826143651.7915-1-eperezma@redhat.com> References: <20200625191651.5817-1-eperezma@redhat.com> <20200826143651.7915-1-eperezma@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.13 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=eperezma@redhat.com X-Mimecast-Spam-Score: 0.002 X-Mimecast-Originator: redhat.com Received-SPF: pass client-ip=216.205.24.124; envelope-from=eperezma@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/08/25 23:30:47 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] [fuzzy] X-Spam_score_int: -30 X-Spam_score: -3.1 X-Spam_bar: --- X-Spam_report: (-3.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.959, 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_H5=0.001, RCVD_IN_MSPIKE_WL=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: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Peter Maydell , Aleksandar Rikalo , Yan Zhao , Eduardo Habkost , Juan Quintela , Jason Wang , "Michael S. Tsirkin" , Eric Auger , qemu-arm@nongnu.org, =?utf-8?q?Herv=C3=A9_Poussineau?= , Avi Kivity , Paolo Bonzini , Richard Henderson Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" This way we can tell between MAPs and UNMAP, and potentially avoid to send them to a notifier that does not require them. Signed-off-by: Eugenio Pérez --- include/exec/memory.h | 17 ++++++++++++----- 1 file changed, 12 insertions(+), 5 deletions(-) diff --git a/include/exec/memory.h b/include/exec/memory.h index 22c5f564d1..f6d91c54aa 100644 --- a/include/exec/memory.h +++ b/include/exec/memory.h @@ -59,6 +59,12 @@ struct ReservedRegion { typedef struct IOMMUTLBEntry IOMMUTLBEntry; +typedef enum { + IOMMU_IOTLB_NONE = 0, + IOMMU_IOTLB_UNMAP = 1, + IOMMU_IOTLB_MAP = 2, +} IOMMUTLBNotificationType; + /* See address_space_translate: bit 0 is read, bit 1 is write. */ typedef enum { IOMMU_NONE = 0, @@ -70,11 +76,12 @@ typedef enum { #define IOMMU_ACCESS_FLAG(r, w) (((r) ? IOMMU_RO : 0) | ((w) ? IOMMU_WO : 0)) struct IOMMUTLBEntry { - AddressSpace *target_as; - hwaddr iova; - hwaddr translated_addr; - hwaddr addr_mask; /* 0xfff = 4k translation */ - IOMMUAccessFlags perm; + AddressSpace *target_as; + hwaddr iova; + hwaddr translated_addr; + hwaddr addr_mask; /* 0xfff = 4k translation */ + IOMMUAccessFlags perm; + IOMMUTLBNotificationType type; /* Only valid if it is a notification */ }; /*