From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:39763) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1XlxsB-0003ad-Tc for qemu-devel@nongnu.org; Wed, 05 Nov 2014 05:31:36 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1Xlxs7-0007Fw-0r for qemu-devel@nongnu.org; Wed, 05 Nov 2014 05:31:31 -0500 Received: from mx1.redhat.com ([209.132.183.28]:43307) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Xlxs6-0007Fb-PJ for qemu-devel@nongnu.org; Wed, 05 Nov 2014 05:31:26 -0500 Date: Wed, 5 Nov 2014 11:31:18 +0100 From: Igor Mammedov Message-ID: <20141105113118.4f80c7ba@nial.usersys.redhat.com> In-Reply-To: <1415166595-26822-1-git-send-email-tangchen@cn.fujitsu.com> References: <1415166595-26822-1-git-send-email-tangchen@cn.fujitsu.com> MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Subject: Re: [Qemu-devel] [RESEND PATCH v4 00/10] QEmu memory hot unplug support. List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Tang Chen Cc: zhugh.fnst@cn.fujitsu.com, mst@redhat.com, hutao@cn.fujitsu.com, qemu-devel@nongnu.org, isimatu.yasuaki@jp.fujitsu.com, guz.fnst@cn.fujitsu.com, pbonzini@redhat.com On Wed, 5 Nov 2014 13:49:45 +0800 Tang Chen wrote: > This patch-set implements memory hot-remove for QEmu. > > Rebased on Igor's asynchronize hotplug framework (qemu v2.1.2, the latest). As I've wrote before, there were hot-unplug patches merged last month, see for reference http://lists.nongnu.org/archive/html/qemu-devel/2014-09/msg05195.html and this series could benefit from them. So please look take in account not addressed yet comments on V3 and rebase on current master instead of stable 2.1.2. > > Approach: QEmu sets GPE status bit, then triggers SCI to notify guest os. > Guest os checks device status, and free memory resource if possible, > then generate OST. > > NOTE: In this version, memory hot-remove is independent from _OST, > following Igor's comments. Will implement _OST for memory hot-remove > soon if this part is OK. > > Change log v3 -> v4 (RESEND): > 1. Add new patch 1 ~ 4, fix some small problems in coding. > 2. In patch 9, make memory hot-remove independent from _OST. > 3. In patch 9, add comment for is_removing flag to document. > 4. In patch 10, use macro instead of number. > 5. Remove original patch 8 and 12 to coincident with asynchronize > hotplug framework. > > Hu Tao (4): > acpi, piix4: Add memory hot unplug support for piix4. > pc: Add memory hot unplug support for pc machine. > pc-dimm: Add pc_dimm_unrealize() for memory hot unplug support. > pc, acpi bios: Add memory hot unplug interface. > > Tang Chen (6): > acpi, mem-hotplug: Use PC_DIMM_SLOT_PROP in acpi_memory_plug_cb(). > acpi, mem-hotplug: Add acpi_memory_get_slot_status_descriptor() to get > MemStatus. > acpi, mem-hotplug: Add acpi_memory_hotplug_sci() to rise sci for > memory hotplug. > acpi, mem-hotplug: Add acpi_memory_unplug_cb() to implement memory > unplug. > acpi, ich9: Add memory hot unplug support for ich9. > acpi: Add hardware implementation for memory hot unplug. > > docs/specs/acpi_mem_hotplug.txt | 8 +++-- > hw/acpi/ich9.c | 12 +++++++ > hw/acpi/memory_hotplug.c | 71 +++++++++++++++++++++++++++++++--------- > hw/acpi/piix4.c | 6 +++- > hw/i386/pc.c | 31 ++++++++++++++++++ > hw/i386/ssdt-mem.dsl | 5 +++ > hw/i386/ssdt-misc.dsl | 13 +++++++- > hw/isa/lpc_ich9.c | 5 +-- > hw/mem/pc-dimm.c | 10 ++++++ > include/hw/acpi/ich9.h | 2 ++ > include/hw/acpi/memory_hotplug.h | 3 ++ > include/hw/acpi/pc-hotplug.h | 2 ++ > 12 files changed, 146 insertions(+), 22 deletions(-) >