From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-8.6 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1BC48C4320A for ; Mon, 26 Jul 2021 16:06:21 +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 DAD9E60F5E for ; Mon, 26 Jul 2021 16:06:20 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org DAD9E60F5E Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=nongnu.org Received: from localhost ([::1]:34128 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1m837U-00064z-1U for qemu-devel@archiver.kernel.org; Mon, 26 Jul 2021 12:06:20 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:36060) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1m835f-0001wY-0v for qemu-devel@nongnu.org; Mon, 26 Jul 2021 12:04:27 -0400 Received: from us-smtp-delivery-124.mimecast.com ([216.205.24.124]:43310) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1m835b-0001yD-Tf for qemu-devel@nongnu.org; Mon, 26 Jul 2021 12:04:26 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1627315462; 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; bh=CzkMjeISLoni3Sf0vMbk2oEEGiGN9XSJbtFiZ8FpKa0=; b=FpyaH6mESIuPU1j4SyuNJihIjAftTYwvmNajtvcuKsFkp1T7mt8ATsM3hZ8qUAoj5+zqP7 6GN2lTnerDFw353BMEqCCAuIrVe/jKh0ZJB7WfIT95FdGgoxnucrhLOPhVbabm7mDq+6HX SOYSl12j3q86Pg2WAqIfX7G9zlJYN9w= 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-545-EQSqtDr0N5yS9C2DiYO80g-1; Mon, 26 Jul 2021 12:04:21 -0400 X-MC-Unique: EQSqtDr0N5yS9C2DiYO80g-1 Received: from smtp.corp.redhat.com (int-mx06.intmail.prod.int.phx2.redhat.com [10.5.11.16]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 74A7C87498F; Mon, 26 Jul 2021 16:04:19 +0000 (UTC) Received: from t480s.redhat.com (ovpn-112-199.ams2.redhat.com [10.36.112.199]) by smtp.corp.redhat.com (Postfix) with ESMTP id 6DCD15C1D1; Mon, 26 Jul 2021 16:03:47 +0000 (UTC) From: David Hildenbrand To: qemu-devel@nongnu.org Subject: [PATCH v3 0/4] softmmu/memory_mapping: optimize dump/tpm for virtio-mem Date: Mon, 26 Jul 2021 18:03:42 +0200 Message-Id: <20210726160346.109915-1-david@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.16 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-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 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: -34 X-Spam_score: -3.5 X-Spam_bar: --- X-Spam_report: (-3.5 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.717, 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_H4=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: Laurent Vivier , Thomas Huth , Stefan Berger , Eduardo Habkost , David Hildenbrand , "Michael S. Tsirkin" , "Dr. David Alan Gilbert" , Peter Xu , Alex Williamson , Paolo Bonzini , Claudio Fontana , =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= , Igor Mammedov , =?UTF-8?q?Alex=20Benn=C3=A9e?= , Stefan Berger Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Minor fixes and cleanups, followed by an optimization for virtio-mem regarding guest dumps and tpm. virtio-mem logically plugs/unplugs memory within a sparse memory region and notifies via the RamDiscardMgr interface when parts become plugged (populated) or unplugged (discarded). Currently, guest_phys_blocks_append() appends the whole (sparse) virtio-mem managed region and therefore tpm code might zero the hole region and dump code will dump the whole region. Let's only add logically plugged (populated) parts of that region, skipping over logically unplugged (discarded) parts by reusing the RamDiscardMgr infrastructure introduced to handle virtio-mem + VFIO properly. v2 -> v4: - "tpm: mark correct memory region range dirty when clearing RAM" -- Fix calculation of offset into memory region (thanks Peter!) - "softmmu/memory_mapping: reuse qemu_get_guest_simple_memory_mapping()" -- Dropped v1 -> v2: - "softmmu/memory_mapping: factor out adding physical memory ranges" -- Simplify based on RamDiscardManager changes: add using a MemoryRegionSection - "softmmu/memory_mapping: optimize for RamDiscardManager sections" -- Simplify based on RamDiscardManager changes David Hildenbrand (4): tpm: mark correct memory region range dirty when clearing RAM softmmu/memory_mapping: never merge ranges accross memory regions softmmu/memory_mapping: factor out adding physical memory ranges softmmu/memory_mapping: optimize for RamDiscardManager sections hw/tpm/tpm_ppi.c | 5 +++- softmmu/memory_mapping.c | 64 ++++++++++++++++++++++++++-------------- 2 files changed, 46 insertions(+), 23 deletions(-) -- 2.31.1