From patchwork Thu Jul 20 10:12:57 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Maciej S. Szmigiero" X-Patchwork-Id: 13320274 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 5A3C5EB64DA for ; Thu, 20 Jul 2023 10:14:13 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1qMQfB-0006cq-NB; Thu, 20 Jul 2023 06:13:37 -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 1qMQf9-0006cH-1y for qemu-devel@nongnu.org; Thu, 20 Jul 2023 06:13:35 -0400 Received: from vps-vb.mhejs.net ([37.28.154.113]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1qMQf6-0003SJ-J1 for qemu-devel@nongnu.org; Thu, 20 Jul 2023 06:13:34 -0400 Received: from MUA by vps-vb.mhejs.net with esmtps (TLS1.2) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.94.2) (envelope-from ) id 1qMQeo-0003Z1-NC; Thu, 20 Jul 2023 12:13:14 +0200 From: "Maciej S. Szmigiero" To: Paolo Bonzini , Richard Henderson , Eduardo Habkost , David Hildenbrand Cc: "Michael S . Tsirkin" , Marcel Apfelbaum , =?utf-8?q?Alex_Benn=C3=A9e?= , Thomas Huth , =?utf-8?q?Marc-Andr=C3=A9_Lureau?= , =?utf-8?q?Daniel_P=2E_Berrang=C3=A9?= , =?utf-8?q?Phil?= =?utf-8?q?ippe_Mathieu-Daud=C3=A9?= , Eric Blake , Markus Armbruster , qemu-devel@nongnu.org Subject: =?utf-8?q?=5BPATCH_v6_0/6=5D_Hyper-V_Dynamic_Memory_Protocol_driver?= =?utf-8?q?_=28hv-balloon_=F0=9F=8E=88=EF=B8=8F=29?= Date: Thu, 20 Jul 2023 12:12:57 +0200 Message-ID: X-Mailer: git-send-email 2.41.0 MIME-Version: 1.0 Received-SPF: pass client-ip=37.28.154.113; envelope-from=mail@maciej.szmigiero.name; helo=vps-vb.mhejs.net X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, 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: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org From: "Maciej S. Szmigiero" This is a continuation of the v5 of the patch series located here: https://lore.kernel.org/qemu-devel/cover.1686577753.git.maciej.szmigiero@oracle.com/ Changes from v5: * Incorporate David's rework of the driver on top of his virtio-mem-memslots patches (specifically, commit 6769107d1a4f), making use of a memory region container created upfront to avoid calling memory_device{,_pre}_plug() functions from the driver and introducing a driver-specific MemoryDeviceInfo sub-type. * Include two additional David's memory-device patches necessary for the aforementioned conversion in this patch set. * Use multiple memslots to cover the hot-add memory backend in order to reduce metadata size for the not-yet-hot-added part of the memory backend. * Add David's "Co-developed-by:" to patches where he contributed some changes. * Use OBJECT_DEFINE_TYPE_WITH_INTERFACES() and OBJECT_DECLARE_SIMPLE_TYPE() macros instead of open-coding the equivalent functionality. * Drop no longer necessary patch adding g_autoptr() cleanup function for the Error type. David Hildenbrand (2): memory-device: Support empty memory devices memory-device: Drop size alignment check Maciej S. Szmigiero (4): Add Hyper-V Dynamic Memory Protocol definitions qapi: Add HvBalloonDeviceInfo sub-type to MemoryDeviceInfo qapi: Add HV_BALLOON_STATUS_REPORT event Add a Hyper-V Dynamic Memory Protocol driver (hv-balloon) Kconfig.host | 3 + hw/core/machine-hmp-cmds.c | 15 + hw/hyperv/Kconfig | 5 + hw/hyperv/hv-balloon.c | 2246 ++++++++++++++++++++++++++++++ hw/hyperv/meson.build | 1 + hw/hyperv/trace-events | 18 + hw/i386/pc.c | 22 + hw/mem/memory-device.c | 45 +- include/hw/hyperv/dynmem-proto.h | 423 ++++++ include/hw/hyperv/hv-balloon.h | 18 + include/hw/mem/memory-device.h | 7 +- meson.build | 28 +- meson_options.txt | 2 + qapi/machine.json | 64 +- scripts/meson-buildoptions.sh | 3 + 15 files changed, 2888 insertions(+), 12 deletions(-) create mode 100644 hw/hyperv/hv-balloon.c create mode 100644 include/hw/hyperv/dynmem-proto.h create mode 100644 include/hw/hyperv/hv-balloon.h