From: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
To: Xiao Guangrong <guangrong.xiao@linux.intel.com>,
<pbonzini@redhat.com>, <imammedo@redhat.com>
Cc: <gleb@kernel.org>, <mtosatti@redhat.com>, <stefanha@redhat.com>,
<mst@redhat.com>, <rth@twiddle.net>, <ehabkost@redhat.com>,
<dan.j.williams@intel.com>, <kvm@vger.kernel.org>,
<qemu-devel@nongnu.org>, <eblake@redhat.com>
Subject: Re: [PATCH v7 20/35] dimm: get mapped memory region from DIMMDeviceClass->get_memory_region
Date: Thu, 5 Nov 2015 11:53:14 +0300 [thread overview]
Message-ID: <563B18FA.3050506@virtuozzo.com> (raw)
In-Reply-To: <5638C8E8.9090804@linux.intel.com>
On 03.11.2015 17:47, Xiao Guangrong wrote:
>
>
> On 11/03/2015 12:16 AM, Vladimir Sementsov-Ogievskiy wrote:
>> On 02.11.2015 18:06, Xiao Guangrong wrote:
>>>
>>>
>>> On 11/02/2015 10:26 PM, Vladimir Sementsov-Ogievskiy wrote:
>>>> On 02.11.2015 16:08, Xiao Guangrong wrote:
>>>>>
>>>>>
>>>>> On 11/02/2015 08:19 PM, Vladimir Sementsov-Ogievskiy wrote:
>>>>>> On 02.11.2015 12:13, Xiao Guangrong wrote:
>>>>>>> Curretly, the memory region of backed memory is directly mapped to
>>>>>>> guest's address space, however, it is not true for nvdimm device
>>>>>>>
>>>>>>> This patch let dimm device realize this fact and use
>>>>>>> DIMMDeviceClass->get_memory_region method to get the mapped memory
>>>>>>> region
>>>>>>>
>>>>>>> Current code did not check the return value of get_memory_region
>>>>>>> as it
>>>>>>> assumed the backend memory of pc-dimm is always properly
>>>>>>> initialized,
>>>>>>> we make get_memory_region internally catch the case if something is
>>>>>>> wrong
>>>>
>>>> but here you call not pc-dimm's get_memory_region, but common
>>>> ddc->get_memory_region, which may be
>>>> nvdimm or possibly other future dimm, so, why not check it here?
>>>> And than pc_dimm_get_memory_region
>>>> may be left untouched (error_abort is ok, because errp is unused).
>>>
>>> Hmm, because 'here' is not the only place calling
>>> ->get_memory_region, this method has
>>> multiple callers:
>>>
>>> $ git grep "\->get_memory_region"
>>> hw/i386/pc.c: MemoryRegion *mr = ddc->get_memory_region(dimm);
>>> hw/i386/pc.c: MemoryRegion *mr = ddc->get_memory_region(dimm);
>>> hw/mem/dimm.c: mr = ddc->get_memory_region(dimm);
>>> hw/mem/nvdimm.c: ddc->get_memory_region = nvdimm_get_memory_region;
>>> hw/mem/pc-dimm.c: ddc->get_memory_region =
>>> pc_dimm_get_memory_region;
>>> hw/ppc/spapr.c: MemoryRegion *mr = ddc->get_memory_region(dimm);
>>>
>>> memory region validation is also done for NVDIMM in nvdimm device.
>>>
>> Ok, then it should be documented by a comment in dimm.h, where
>> DIMMDeviceClass is defined, that this
>> function should not fail
>>
>
> Okay, how about this comment:
>
> /*
> * get the memory region which will be mapped into guest's address
> * space. It is called after dimm device realized so it is never
> * failed.
> */
> MemoryRegion *(*get_memory_region)(DIMMDevice *dimm);
if you don't mind:
s/it is never failed/it should never fail and assumed to return valid
not-NULL address
I'll ok with this if others don't mind, but personally I prefer explicit
error handling for such functions.
--
Best regards,
Vladimir
* now, @virtuozzo.com instead of @parallels.com. Sorry for this inconvenience.
WARNING: multiple messages have this Message-ID (diff)
From: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
To: Xiao Guangrong <guangrong.xiao@linux.intel.com>,
pbonzini@redhat.com, imammedo@redhat.com
Cc: ehabkost@redhat.com, kvm@vger.kernel.org, mst@redhat.com,
gleb@kernel.org, mtosatti@redhat.com, qemu-devel@nongnu.org,
stefanha@redhat.com, dan.j.williams@intel.com, rth@twiddle.net
Subject: Re: [Qemu-devel] [PATCH v7 20/35] dimm: get mapped memory region from DIMMDeviceClass->get_memory_region
Date: Thu, 5 Nov 2015 11:53:14 +0300 [thread overview]
Message-ID: <563B18FA.3050506@virtuozzo.com> (raw)
In-Reply-To: <5638C8E8.9090804@linux.intel.com>
On 03.11.2015 17:47, Xiao Guangrong wrote:
>
>
> On 11/03/2015 12:16 AM, Vladimir Sementsov-Ogievskiy wrote:
>> On 02.11.2015 18:06, Xiao Guangrong wrote:
>>>
>>>
>>> On 11/02/2015 10:26 PM, Vladimir Sementsov-Ogievskiy wrote:
>>>> On 02.11.2015 16:08, Xiao Guangrong wrote:
>>>>>
>>>>>
>>>>> On 11/02/2015 08:19 PM, Vladimir Sementsov-Ogievskiy wrote:
>>>>>> On 02.11.2015 12:13, Xiao Guangrong wrote:
>>>>>>> Curretly, the memory region of backed memory is directly mapped to
>>>>>>> guest's address space, however, it is not true for nvdimm device
>>>>>>>
>>>>>>> This patch let dimm device realize this fact and use
>>>>>>> DIMMDeviceClass->get_memory_region method to get the mapped memory
>>>>>>> region
>>>>>>>
>>>>>>> Current code did not check the return value of get_memory_region
>>>>>>> as it
>>>>>>> assumed the backend memory of pc-dimm is always properly
>>>>>>> initialized,
>>>>>>> we make get_memory_region internally catch the case if something is
>>>>>>> wrong
>>>>
>>>> but here you call not pc-dimm's get_memory_region, but common
>>>> ddc->get_memory_region, which may be
>>>> nvdimm or possibly other future dimm, so, why not check it here?
>>>> And than pc_dimm_get_memory_region
>>>> may be left untouched (error_abort is ok, because errp is unused).
>>>
>>> Hmm, because 'here' is not the only place calling
>>> ->get_memory_region, this method has
>>> multiple callers:
>>>
>>> $ git grep "\->get_memory_region"
>>> hw/i386/pc.c: MemoryRegion *mr = ddc->get_memory_region(dimm);
>>> hw/i386/pc.c: MemoryRegion *mr = ddc->get_memory_region(dimm);
>>> hw/mem/dimm.c: mr = ddc->get_memory_region(dimm);
>>> hw/mem/nvdimm.c: ddc->get_memory_region = nvdimm_get_memory_region;
>>> hw/mem/pc-dimm.c: ddc->get_memory_region =
>>> pc_dimm_get_memory_region;
>>> hw/ppc/spapr.c: MemoryRegion *mr = ddc->get_memory_region(dimm);
>>>
>>> memory region validation is also done for NVDIMM in nvdimm device.
>>>
>> Ok, then it should be documented by a comment in dimm.h, where
>> DIMMDeviceClass is defined, that this
>> function should not fail
>>
>
> Okay, how about this comment:
>
> /*
> * get the memory region which will be mapped into guest's address
> * space. It is called after dimm device realized so it is never
> * failed.
> */
> MemoryRegion *(*get_memory_region)(DIMMDevice *dimm);
if you don't mind:
s/it is never failed/it should never fail and assumed to return valid
not-NULL address
I'll ok with this if others don't mind, but personally I prefer explicit
error handling for such functions.
--
Best regards,
Vladimir
* now, @virtuozzo.com instead of @parallels.com. Sorry for this inconvenience.
next prev parent reply other threads:[~2015-11-05 8:53 UTC|newest]
Thread overview: 200+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-11-02 9:13 [PATCH v7 00/35] implement vNVDIMM Xiao Guangrong
2015-11-02 9:13 ` [Qemu-devel] " Xiao Guangrong
2015-11-02 9:13 ` [PATCH v7 01/35] acpi: add aml_derefof Xiao Guangrong
2015-11-02 9:13 ` [Qemu-devel] " Xiao Guangrong
2015-11-02 9:13 ` [PATCH v7 02/35] acpi: add aml_sizeof Xiao Guangrong
2015-11-02 9:13 ` [Qemu-devel] " Xiao Guangrong
2015-11-02 9:13 ` [PATCH v7 03/35] acpi: add aml_create_field Xiao Guangrong
2015-11-02 9:13 ` [Qemu-devel] " Xiao Guangrong
2015-11-03 6:14 ` Shannon Zhao
2015-11-03 6:14 ` [Qemu-devel] " Shannon Zhao
2015-11-03 14:52 ` Xiao Guangrong
2015-11-02 9:13 ` [PATCH v7 04/35] acpi: add aml_concatenate Xiao Guangrong
2015-11-02 9:13 ` [Qemu-devel] " Xiao Guangrong
2015-11-02 9:13 ` [PATCH v7 05/35] acpi: add aml_object_type Xiao Guangrong
2015-11-02 9:13 ` [Qemu-devel] " Xiao Guangrong
2015-11-02 9:13 ` [PATCH v7 06/35] acpi: add aml_method_serialized Xiao Guangrong
2015-11-02 9:13 ` [Qemu-devel] " Xiao Guangrong
2015-11-03 12:30 ` Igor Mammedov
2015-11-03 12:30 ` Igor Mammedov
2015-11-03 13:27 ` Xiao Guangrong
2015-11-03 13:27 ` Xiao Guangrong
2015-11-02 9:13 ` [PATCH v7 07/35] util: introduce qemu_file_get_page_size() Xiao Guangrong
2015-11-02 9:13 ` [Qemu-devel] " Xiao Guangrong
2015-11-02 13:56 ` Vladimir Sementsov-Ogievskiy
2015-11-02 13:56 ` [Qemu-devel] " Vladimir Sementsov-Ogievskiy
2015-11-06 15:36 ` Eduardo Habkost
2015-11-06 15:36 ` [Qemu-devel] " Eduardo Habkost
2015-11-09 4:36 ` Xiao Guangrong
2015-11-09 4:36 ` [Qemu-devel] " Xiao Guangrong
2015-11-09 18:34 ` Eduardo Habkost
2015-11-09 18:34 ` [Qemu-devel] " Eduardo Habkost
2015-11-02 9:13 ` [PATCH v7 08/35] exec: allow memory to be allocated from any kind of path Xiao Guangrong
2015-11-02 9:13 ` [Qemu-devel] " Xiao Guangrong
2015-11-02 14:51 ` Vladimir Sementsov-Ogievskiy
2015-11-02 14:51 ` [Qemu-devel] " Vladimir Sementsov-Ogievskiy
2015-11-02 15:22 ` Xiao Guangrong
2015-11-02 15:22 ` [Qemu-devel] " Xiao Guangrong
2015-11-02 15:52 ` Vladimir Sementsov-Ogievskiy
2015-11-02 15:52 ` [Qemu-devel] " Vladimir Sementsov-Ogievskiy
2015-11-03 23:00 ` Eduardo Habkost
2015-11-03 23:00 ` [Qemu-devel] " Eduardo Habkost
2015-11-04 3:12 ` Xiao Guangrong
2015-11-04 3:12 ` [Qemu-devel] " Xiao Guangrong
2015-11-04 12:40 ` Eduardo Habkost
2015-11-04 12:40 ` [Qemu-devel] " Eduardo Habkost
2015-11-04 14:22 ` Xiao Guangrong
2015-11-04 14:22 ` [Qemu-devel] " Xiao Guangrong
2015-11-02 9:13 ` [PATCH v7 09/35] exec: allow file_ram_alloc to work on file Xiao Guangrong
2015-11-02 9:13 ` [Qemu-devel] " Xiao Guangrong
2015-11-02 15:12 ` Vladimir Sementsov-Ogievskiy
2015-11-02 15:12 ` [Qemu-devel] " Vladimir Sementsov-Ogievskiy
2015-11-02 15:25 ` Xiao Guangrong
2015-11-02 15:25 ` [Qemu-devel] " Xiao Guangrong
2015-11-02 15:58 ` Vladimir Sementsov-Ogievskiy
2015-11-02 15:58 ` Vladimir Sementsov-Ogievskiy
2015-11-02 21:12 ` Paolo Bonzini
2015-11-02 21:12 ` [Qemu-devel] " Paolo Bonzini
2015-11-03 3:56 ` Xiao Guangrong
2015-11-03 3:56 ` [Qemu-devel] " Xiao Guangrong
2015-11-03 13:55 ` Paolo Bonzini
2015-11-03 13:55 ` [Qemu-devel] " Paolo Bonzini
2015-11-03 14:26 ` Xiao Guangrong
2015-11-03 14:26 ` [Qemu-devel] " Xiao Guangrong
2015-11-03 12:34 ` Igor Mammedov
2015-11-03 12:34 ` [Qemu-devel] " Igor Mammedov
2015-11-03 13:32 ` Xiao Guangrong
2015-11-03 13:32 ` [Qemu-devel] " Xiao Guangrong
2015-11-02 9:13 ` [PATCH v7 10/35] hostmem-file: clean up memory allocation Xiao Guangrong
2015-11-02 9:13 ` [Qemu-devel] " Xiao Guangrong
2015-11-02 9:13 ` [PATCH v7 11/35] util: introduce qemu_file_getlength() Xiao Guangrong
2015-11-02 9:13 ` [Qemu-devel] " Xiao Guangrong
2015-11-02 15:26 ` Vladimir Sementsov-Ogievskiy
2015-11-02 15:26 ` [Qemu-devel] " Vladimir Sementsov-Ogievskiy
2015-11-03 23:21 ` Eduardo Habkost
2015-11-03 23:21 ` [Qemu-devel] " Eduardo Habkost
2015-11-04 3:17 ` Xiao Guangrong
2015-11-04 3:17 ` [Qemu-devel] " Xiao Guangrong
2015-11-04 14:44 ` Eduardo Habkost
2015-11-04 14:44 ` [Qemu-devel] " Eduardo Habkost
2015-11-04 14:44 ` Xiao Guangrong
2015-11-04 14:44 ` [Qemu-devel] " Xiao Guangrong
2015-11-06 15:50 ` Eduardo Habkost
2015-11-06 15:50 ` [Qemu-devel] " Eduardo Habkost
2015-11-09 4:44 ` Xiao Guangrong
2015-11-09 4:44 ` [Qemu-devel] " Xiao Guangrong
2015-11-09 19:21 ` Eduardo Habkost
2015-11-09 19:21 ` [Qemu-devel] " Eduardo Habkost
2015-11-02 9:13 ` [PATCH v7 12/35] util: let qemu_fd_getlength support block device Xiao Guangrong
2015-11-02 9:13 ` [Qemu-devel] " Xiao Guangrong
2015-11-02 16:11 ` Vladimir Sementsov-Ogievskiy
2015-11-02 16:11 ` [Qemu-devel] " Vladimir Sementsov-Ogievskiy
2015-11-02 16:21 ` Xiao Guangrong
2015-11-02 16:21 ` [Qemu-devel] " Xiao Guangrong
2015-11-06 15:44 ` Eduardo Habkost
2015-11-06 15:44 ` [Qemu-devel] " Eduardo Habkost
2015-11-06 15:48 ` Eduardo Habkost
2015-11-06 15:48 ` [Qemu-devel] " Eduardo Habkost
2015-11-06 15:54 ` Eduardo Habkost
2015-11-06 15:54 ` [Qemu-devel] " Eduardo Habkost
2015-11-09 5:58 ` Xiao Guangrong
2015-11-09 5:58 ` [Qemu-devel] " Xiao Guangrong
2015-11-09 18:43 ` Eduardo Habkost
2015-11-09 18:43 ` [Qemu-devel] " Eduardo Habkost
2015-11-02 9:13 ` [PATCH v7 13/35] hostmem-file: use whole file size if possible Xiao Guangrong
2015-11-02 9:13 ` [Qemu-devel] " Xiao Guangrong
2015-11-02 17:09 ` Vladimir Sementsov-Ogievskiy
2015-11-02 17:09 ` [Qemu-devel] " Vladimir Sementsov-Ogievskiy
2015-11-03 14:51 ` Xiao Guangrong
2015-11-03 14:51 ` [Qemu-devel] " Xiao Guangrong
2015-11-02 9:13 ` [PATCH v7 14/35] pc-dimm: remove DEFAULT_PC_DIMMSIZE Xiao Guangrong
2015-11-02 9:13 ` [Qemu-devel] " Xiao Guangrong
2015-11-02 9:13 ` [PATCH v7 15/35] pc-dimm: make pc_existing_dimms_capacity static and rename it Xiao Guangrong
2015-11-02 9:13 ` [Qemu-devel] " Xiao Guangrong
2015-11-02 9:13 ` [PATCH v7 16/35] pc-dimm: drop the prefix of pc-dimm Xiao Guangrong
2015-11-02 9:13 ` [Qemu-devel] " Xiao Guangrong
2015-11-02 9:13 ` [PATCH v7 17/35] stubs: rename qmp_pc_dimm_device_list.c Xiao Guangrong
2015-11-02 9:13 ` [Qemu-devel] " Xiao Guangrong
2015-11-02 9:13 ` [PATCH v7 18/35] pc-dimm: rename pc-dimm.c and pc-dimm.h Xiao Guangrong
2015-11-02 9:13 ` [Qemu-devel] " Xiao Guangrong
2015-11-02 9:13 ` [PATCH v7 19/35] dimm: abstract dimm device from pc-dimm Xiao Guangrong
2015-11-02 9:13 ` [Qemu-devel] " Xiao Guangrong
2015-11-02 9:13 ` [PATCH v7 20/35] dimm: get mapped memory region from DIMMDeviceClass->get_memory_region Xiao Guangrong
2015-11-02 9:13 ` [Qemu-devel] " Xiao Guangrong
2015-11-02 12:19 ` Vladimir Sementsov-Ogievskiy
2015-11-02 12:19 ` [Qemu-devel] " Vladimir Sementsov-Ogievskiy
2015-11-02 13:08 ` Xiao Guangrong
2015-11-02 13:08 ` [Qemu-devel] " Xiao Guangrong
2015-11-02 14:26 ` Vladimir Sementsov-Ogievskiy
2015-11-02 14:26 ` [Qemu-devel] " Vladimir Sementsov-Ogievskiy
2015-11-02 15:06 ` Xiao Guangrong
2015-11-02 15:06 ` [Qemu-devel] " Xiao Guangrong
2015-11-02 16:16 ` Vladimir Sementsov-Ogievskiy
2015-11-02 16:16 ` [Qemu-devel] " Vladimir Sementsov-Ogievskiy
2015-11-03 14:47 ` Xiao Guangrong
2015-11-03 14:47 ` [Qemu-devel] " Xiao Guangrong
2015-11-05 8:53 ` Vladimir Sementsov-Ogievskiy [this message]
2015-11-05 8:53 ` Vladimir Sementsov-Ogievskiy
2015-11-05 17:29 ` Eduardo Habkost
2015-11-05 17:29 ` [Qemu-devel] " Eduardo Habkost
2015-11-06 2:50 ` Xiao Guangrong
2015-11-06 2:50 ` [Qemu-devel] " Xiao Guangrong
2015-11-02 9:13 ` [PATCH v7 21/35] dimm: keep the state of the whole backend memory Xiao Guangrong
2015-11-02 9:13 ` [Qemu-devel] " Xiao Guangrong
2015-11-02 9:13 ` [PATCH v7 22/35] dimm: introduce realize callback Xiao Guangrong
2015-11-02 9:13 ` [Qemu-devel] " Xiao Guangrong
2015-11-02 9:13 ` [PATCH v7 23/35] nvdimm: implement NVDIMM device abstract Xiao Guangrong
2015-11-02 9:13 ` [Qemu-devel] " Xiao Guangrong
2015-11-13 16:53 ` Vladimir Sementsov-Ogievskiy
2015-11-13 16:53 ` [Qemu-devel] " Vladimir Sementsov-Ogievskiy
2015-11-02 9:13 ` [PATCH v7 24/35] docs: add NVDIMM ACPI documentation Xiao Guangrong
2015-11-02 9:13 ` [Qemu-devel] " Xiao Guangrong
2015-11-02 9:13 ` [PATCH v7 25/35] nvdimm acpi: init the resource used by NVDIMM ACPI Xiao Guangrong
2015-11-02 9:13 ` [Qemu-devel] " Xiao Guangrong
2015-11-05 9:58 ` Igor Mammedov
2015-11-05 9:58 ` [Qemu-devel] " Igor Mammedov
2015-11-05 10:15 ` Xiao Guangrong
2015-11-05 10:15 ` [Qemu-devel] " Xiao Guangrong
2015-11-05 13:03 ` Igor Mammedov
2015-11-05 13:03 ` [Qemu-devel] " Igor Mammedov
2015-11-05 13:33 ` Xiao Guangrong
2015-11-05 13:33 ` [Qemu-devel] " Xiao Guangrong
2015-11-05 14:49 ` Igor Mammedov
2015-11-05 14:49 ` [Qemu-devel] " Igor Mammedov
2015-11-06 8:31 ` Xiao Guangrong
2015-11-06 8:31 ` [Qemu-devel] " Xiao Guangrong
2015-11-06 8:56 ` Xiao Guangrong
2015-11-06 8:56 ` [Qemu-devel] " Xiao Guangrong
2015-11-09 11:13 ` Igor Mammedov
2015-11-11 3:01 ` Ask for ACK (was Re: [PATCH v7 25/35] nvdimm acpi: init the resource used by NVDIMM ACPI) Xiao Guangrong
2015-11-11 3:01 ` [Qemu-devel] " Xiao Guangrong
2015-11-02 9:13 ` [PATCH v7 26/35] nvdimm acpi: build ACPI NFIT table Xiao Guangrong
2015-11-02 9:13 ` [Qemu-devel] " Xiao Guangrong
2015-11-02 9:13 ` [PATCH v7 27/35] nvdimm acpi: build ACPI nvdimm devices Xiao Guangrong
2015-11-02 9:13 ` [Qemu-devel] " Xiao Guangrong
2015-11-03 13:13 ` Igor Mammedov
2015-11-03 13:13 ` [Qemu-devel] " Igor Mammedov
2015-11-03 14:22 ` Xiao Guangrong
2015-11-03 14:22 ` [Qemu-devel] " Xiao Guangrong
2015-11-04 8:56 ` Igor Mammedov
2015-11-04 8:56 ` [Qemu-devel] " Igor Mammedov
2015-11-04 14:11 ` Xiao Guangrong
2015-11-04 14:11 ` [Qemu-devel] " Xiao Guangrong
2015-11-02 9:13 ` [PATCH v7 28/35] nvdimm acpi: save arg3 for NVDIMM device _DSM method Xiao Guangrong
2015-11-02 9:13 ` [Qemu-devel] " Xiao Guangrong
2015-11-02 9:13 ` [PATCH v7 29/35] nvdimm acpi: support function 0 Xiao Guangrong
2015-11-02 9:13 ` [Qemu-devel] " Xiao Guangrong
2015-11-02 9:13 ` [PATCH v7 30/35] nvdimm acpi: support Get Namespace Label Size function Xiao Guangrong
2015-11-02 9:13 ` [Qemu-devel] " Xiao Guangrong
2015-11-02 9:13 ` [PATCH v7 31/35] nvdimm acpi: support Get Namespace Label Data function Xiao Guangrong
2015-11-02 9:13 ` [Qemu-devel] " Xiao Guangrong
2015-11-02 9:13 ` [PATCH v7 32/35] nvdimm acpi: support Set " Xiao Guangrong
2015-11-02 9:13 ` [Qemu-devel] " Xiao Guangrong
2015-11-02 9:13 ` [PATCH v7 33/35] nvdimm: allow using whole backend memory as pmem Xiao Guangrong
2015-11-02 9:13 ` [Qemu-devel] " Xiao Guangrong
2015-11-02 9:13 ` [PATCH v7 34/35] nvdimm acpi: support _FIT method Xiao Guangrong
2015-11-02 9:13 ` [Qemu-devel] " Xiao Guangrong
2015-11-02 9:13 ` [PATCH v7 35/35] nvdimm: add maintain info Xiao Guangrong
2015-11-02 9:13 ` [Qemu-devel] " Xiao Guangrong
2015-11-02 11:51 ` [PATCH v7 00/35] implement vNVDIMM Stefan Hajnoczi
2015-11-02 11:51 ` [Qemu-devel] " Stefan Hajnoczi
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