From nobody Wed Nov 19 03:00:55 2025 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=redhat.com ARC-Seal: i=1; a=rsa-sha256; t=1614160788; cv=none; d=zohomail.com; s=zohoarc; b=fmUFDrxGMRp+v1PQe9TSBsDEYotxWmZrl5E5uz5I68NFQ7ZKghhEFP2vHHEcR2kyjiReZHdjVmJ2KlYHGk+qH5Ut6RLGq2esiPkxI78NJOGx90PrRrFZu4k+/LvzXGHPkgnysJ28maJAAoNTLkajFjfTgzB1FLMvMK5XQ4mbrrY= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1614160788; h=Content-Type:Content-Transfer-Encoding:Cc:Date:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:To; bh=PQdd/EXv5DkOfPxw60RzsG8hDM2y9yjDjv+f5b2r9uY=; b=moDg1yW1dX1AAsY9Zi0o89FCoGR/pAchRYbvc48ZdUVM2/rhkQTqVMV/lVzVrjia3F4zvOQEH2lM1/aSi5/MNilwY/Tnt5SGcuLrhVAMGZ4GymEK86v3uoHHXmups1CW2FpZ3YR02jc28zfRJ3JTJzAcbOJotJ5NBWEbtNN502U= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail header.from= (p=none dis=none) header.from= Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1614160788450726.569180754848; Wed, 24 Feb 2021 01:59:48 -0800 (PST) Received: from localhost ([::1]:58714 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lEqxO-0003E9-Bw for importer@patchew.org; Wed, 24 Feb 2021 04:59:46 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:57036) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lEqpX-0003XE-9d for qemu-devel@nongnu.org; Wed, 24 Feb 2021 04:51:39 -0500 Received: from us-smtp-delivery-124.mimecast.com ([216.205.24.124]:30979) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.90_1) (envelope-from ) id 1lEqpV-000880-Jf for qemu-devel@nongnu.org; Wed, 24 Feb 2021 04:51:39 -0500 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-9-8zqx3KBfMQWbfftywAF2fw-1; Wed, 24 Feb 2021 04:51:33 -0500 Received: from smtp.corp.redhat.com (int-mx01.intmail.prod.int.phx2.redhat.com [10.5.11.11]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id D719718B6142; Wed, 24 Feb 2021 09:51:31 +0000 (UTC) Received: from t480s.redhat.com (ovpn-114-83.ams2.redhat.com [10.36.114.83]) by smtp.corp.redhat.com (Postfix) with ESMTP id D868F6F7E9; Wed, 24 Feb 2021 09:51:20 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1614160297; 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=PQdd/EXv5DkOfPxw60RzsG8hDM2y9yjDjv+f5b2r9uY=; b=MoH/d74Cs0yGP5jeoDW5AdpHcs8W2VaXyzL5Uk8lRbxP1S7sAKueQzuYqNTceyJqswDVN0 tWKKgnUBVcYmuf+jSpKv66e63lSDeYaPIu5iAH/nL4veLH0l8nWH38zi2KSOMCZ1f5PZGx Hl6tUABcaNI/q7n4HQHgNVN96UB1I/I= X-MC-Unique: 8zqx3KBfMQWbfftywAF2fw-1 From: David Hildenbrand To: qemu-devel@nongnu.org Subject: [PATCH v7 12/13] virtio-mem: Require only coordinated discards Date: Wed, 24 Feb 2021 10:49:08 +0100 Message-Id: <20210224094910.44986-13-david@redhat.com> In-Reply-To: <20210224094910.44986-1-david@redhat.com> References: <20210224094910.44986-1-david@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.11 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=david@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=216.205.24.124; envelope-from=david@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -27 X-Spam_score: -2.8 X-Spam_bar: -- X-Spam_report: (-2.8 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H3=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham 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: Pankaj Gupta , Wei Yang , "Michael S . Tsirkin" , David Hildenbrand , Alex Williamson , Peter Xu , "Dr . David Alan Gilbert" , Auger Eric , Pankaj Gupta , teawater , Igor Mammedov , Paolo Bonzini , Marek Kedzierski Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) Content-Type: text/plain; charset="utf-8" We implement the RamDiscardManager interface and only require coordinated discarding of RAM to work. Reviewed-by: Dr. David Alan Gilbert Reviewed-by: Pankaj Gupta Acked-by: Michael S. Tsirkin Reviewed-by: Michael S. Tsirkin Cc: Paolo Bonzini Cc: "Michael S. Tsirkin" Cc: Alex Williamson Cc: Dr. David Alan Gilbert Cc: Igor Mammedov Cc: Pankaj Gupta Cc: Peter Xu Cc: Auger Eric Cc: Wei Yang Cc: teawater Cc: Marek Kedzierski Signed-off-by: David Hildenbrand --- hw/virtio/virtio-mem.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/hw/virtio/virtio-mem.c b/hw/virtio/virtio-mem.c index cbd07fc9f1..9e79b5b50c 100644 --- a/hw/virtio/virtio-mem.c +++ b/hw/virtio/virtio-mem.c @@ -719,7 +719,7 @@ static void virtio_mem_device_realize(DeviceState *dev,= Error **errp) return; } =20 - if (ram_block_discard_require(true)) { + if (ram_block_coordinated_discard_require(true)) { error_setg(errp, "Discarding RAM is disabled"); return; } @@ -727,7 +727,7 @@ static void virtio_mem_device_realize(DeviceState *dev,= Error **errp) ret =3D ram_block_discard_range(rb, 0, qemu_ram_get_used_length(rb)); if (ret) { error_setg_errno(errp, -ret, "Unexpected error discarding RAM"); - ram_block_discard_require(false); + ram_block_coordinated_discard_require(false); return; } =20 @@ -771,7 +771,7 @@ static void virtio_mem_device_unrealize(DeviceState *de= v) virtio_del_queue(vdev, 0); virtio_cleanup(vdev); g_free(vmem->bitmap); - ram_block_discard_require(false); + ram_block_coordinated_discard_require(false); } =20 static int virtio_mem_discard_range_cb(const VirtIOMEM *vmem, void *arg, --=20 2.29.2