From nobody Mon Feb 9 09:33:22 2026 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass; 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=pass(p=none dis=none) header.from=redhat.com ARC-Seal: i=1; a=rsa-sha256; t=1650561777; cv=none; d=zohomail.com; s=zohoarc; b=EFbSpGKPYeuTsuvXdrANe6rJKUCbmc5iF4ixMINFJBlg9QfbZ3E21N8ZLFqnizgJgyvalImksjNZ0FI/M6+JR0X1uiaUmHcwsTnhtHjiNcnWYh207LAh8Qgi81OdOyMqi13ToPvWUmc52DBwxeODrjoj+fYT7qCyowLhcB4bLoI= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1650561777; 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=BKYop8sAAFoWP1QwSZtJ1gPDb1K+velWWJw8pd37awQ=; b=BE6PskWk3A1ZtozUycD6o5MWiM0CVmvzK/KOkeHnQekYB4rOmu+Wb5OqyCbkXkQhQ4dtSRcRPZnTU32nyyLW+99Crgo12jBS3lX+jCa2W6z78O5lvN2t+BFlwq4+kxtGqRv8b3+5/MQvq94ZhKw3Be26WKfEdL1yDxuxLE/oOhE= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=pass; 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=pass header.from= (p=none dis=none) Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1650561777061940.7155606886001; Thu, 21 Apr 2022 10:22:57 -0700 (PDT) Received: from localhost ([::1]:50034 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1nhaW7-0005ye-Ld for importer@patchew.org; Thu, 21 Apr 2022 13:22:55 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:35432) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1nhZrm-00081l-0y for qemu-devel@nongnu.org; Thu, 21 Apr 2022 12:41:14 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.129.124]:60477) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1nhZrk-00036v-Cw for qemu-devel@nongnu.org; Thu, 21 Apr 2022 12:41:13 -0400 Received: from mimecast-mx02.redhat.com (mimecast-mx02.redhat.com [66.187.233.88]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-193-kvHujfGYMFWEfXS_rl1Wzg-1; Thu, 21 Apr 2022 12:41:02 -0400 Received: from smtp.corp.redhat.com (int-mx01.intmail.prod.int.rdu2.redhat.com [10.11.54.1]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 773A7101AA52 for ; Thu, 21 Apr 2022 16:41:02 +0000 (UTC) Received: from dgilbert-t580.localhost (unknown [10.39.195.39]) by smtp.corp.redhat.com (Postfix) with ESMTP id B42CF40D016E; Thu, 21 Apr 2022 16:41:01 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1650559271; 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=BKYop8sAAFoWP1QwSZtJ1gPDb1K+velWWJw8pd37awQ=; b=HSCtWZ5uXzoxNA06RHLEHN5eXE0oOOzI5JxFyEEirIV622Am74P+W9cqPVTcgqq8PT0zh9 jlm7u1cTCXi5hWcRS6GWLud10FZuiDH71/gcqm5p3kJh/ArAiqL6hD567Jd/pLufrRv4xM O4mZla/DvW5hm6HgsIlOPlIKxWg0R8Q= X-MC-Unique: kvHujfGYMFWEfXS_rl1Wzg-1 From: "Dr. David Alan Gilbert (git)" To: qemu-devel@nongnu.org, peterx@redhat.com, berrange@redhat.com Subject: [PULL 12/18] migration: Add pss.postcopy_requested status Date: Thu, 21 Apr 2022 17:40:37 +0100 Message-Id: <20220421164043.209703-13-dgilbert@redhat.com> In-Reply-To: <20220421164043.209703-1-dgilbert@redhat.com> References: <20220421164043.209703-1-dgilbert@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable X-Scanned-By: MIMEDefang 2.84 on 10.11.54.1 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=170.10.129.124; envelope-from=dgilbert@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -28 X-Spam_score: -2.9 X-Spam_bar: -- X-Spam_report: (-2.9 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.082, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, 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: , Cc: quintela@redhat.com Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: pass (identity @redhat.com) X-ZM-MESSAGEID: 1650561779210100001 From: Peter Xu This boolean flag shows whether the current page during migration is trigge= red by postcopy or not. Then in ram_save_host_page() and deeper stack we'll be able to have a reference on the priority of this page. Reviewed-by: Dr. David Alan Gilbert Signed-off-by: Peter Xu Message-Id: <20220331150857.74406-4-peterx@redhat.com> Reviewed-by: Daniel P. Berrang=C3=A9 Signed-off-by: Dr. David Alan Gilbert --- migration/ram.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/migration/ram.c b/migration/ram.c index 3532f64ecb..bfcd45a36e 100644 --- a/migration/ram.c +++ b/migration/ram.c @@ -414,6 +414,8 @@ struct PageSearchStatus { unsigned long page; /* Set once we wrap around */ bool complete_round; + /* Whether current page is explicitly requested by postcopy */ + bool postcopy_requested; }; typedef struct PageSearchStatus PageSearchStatus; =20 @@ -1487,6 +1489,9 @@ retry: */ static bool find_dirty_block(RAMState *rs, PageSearchStatus *pss, bool *ag= ain) { + /* This is not a postcopy requested page */ + pss->postcopy_requested =3D false; + pss->page =3D migration_bitmap_find_dirty(rs, pss->block, pss->page); if (pss->complete_round && pss->block =3D=3D rs->last_seen_block && pss->page >=3D rs->last_page) { @@ -1981,6 +1986,7 @@ static bool get_queued_page(RAMState *rs, PageSearchS= tatus *pss) * really rare. */ pss->complete_round =3D false; + pss->postcopy_requested =3D true; } =20 return !!block; --=20 2.35.1