From: Gordan Bobic <gordan@bobich.net>
To: Hanweidong <hanweidong@huawei.com>
Cc: Stefano Stabellini <stefano.stabellini@eu.citrix.com>,
George Dunlap <george.dunlap@eu.citrix.com>,
xudong.hao@intel.com, Yanqiangjun <yanqiangjun@huawei.com>,
Luonengjun <luonengjun@huawei.com>,
Wangzhenguo <wangzhenguo@huawei.com>,
Yangxiaowei <xiaowei.yang@huawei.com>,
"Gonglei (Arei)" <arei.gonglei@huawei.com>,
Anthony Perard <anthony.perard@citrix.com>,
xen-devel@lists.xen.org, xiantao.zhang@intel.com
Subject: Re: GPU passthrough issue when VM is configured with 4G memory
Date: Wed, 22 May 2013 16:17:34 +0100 [thread overview]
Message-ID: <b1163b41c605706a36c2f25aaa6d647e@mail.shatteredsilicon.net> (raw)
In-Reply-To: <FAB5C136CA8BEA4DBEA2F641E3F5363860A42446@szxeml538-mbx.china.huawei.com>
On Tue, 21 May 2013 04:09:25 +0000, Hanweidong <hanweidong@huawei.com>
wrote:
>> -----Original Message-----
>> From: Gordan Bobic [mailto:gordan@bobich.net]
>> Sent: 2013年5月21日 2:43
>> To: George Dunlap
>> Cc: Hanweidong; Stefano Stabellini; xudong.hao@intel.com;
>> Yanqiangjun;
>> Luonengjun; Wangzhenguo; Yangxiaowei; Gonglei (Arei); Anthony
>> Perard;
>> xen-devel@lists.xen.org; xiantao.zhang@intel.com
>> Subject: Re: [Xen-devel] GPU passthrough issue when VM is configured
>> with 4G memory
>>
>> I'd also like to stress this is not only an issue for > 4GB of RAM
>> in
>> domU - I am seeing the issue with > 2GB of RAM in domU.
>
> What's the total mmio size of you domU?
How can I find that out?
> When RAM of domU overlaps
> with pci_mem_start, hvmloader will relocate RAM, and it will cause
> problem due to hvmloader and QEMU don't setup the memory layout
> consistently. I suspect the mmio size of your domU is close to 2GB.
> When you configured RAM > 2G, then RAM of your domU overlapped with
> pci_mem_start, and resulted in failure.
Is there a way to force a hole between, say, 2GB and 4GB explicitly
to avoid the PCI memory being clobbered?
Gordan
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next prev parent reply other threads:[~2013-05-22 15:17 UTC|newest]
Thread overview: 57+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-03-04 8:10 GPU passthrough issue when VM is configured with 4G memory Gonglei (Arei)
2013-03-05 9:50 ` Pasi Kärkkäinen
2013-03-05 12:44 ` Hanweidong
2013-03-05 13:20 ` Pasi Kärkkäinen
2013-03-05 14:21 ` Matthias
2013-03-05 14:27 ` Pasi Kärkkäinen
2013-03-05 14:41 ` Matthias
2013-03-06 11:35 ` Hanweidong
2013-03-05 12:59 ` George Dunlap
2013-03-06 11:38 ` Hanweidong
2013-03-06 12:43 ` George Dunlap
2013-03-06 14:04 ` Pasi Kärkkäinen
2013-03-06 19:45 ` Konrad Rzeszutek Wilk
2013-03-07 7:51 ` Hanweidong
2013-03-07 10:16 ` George Dunlap
2013-03-12 5:45 ` Hanweidong
2013-03-12 10:39 ` George Dunlap
2013-03-13 13:23 ` Hanweidong
2013-03-16 23:41 ` youenn.gestin
2013-03-17 17:32 ` Pasi Kärkkäinen
2013-03-18 22:43 ` youenn.gestin
2013-03-19 7:28 ` David TECHER
2013-03-18 12:02 ` Stefano Stabellini
2013-03-18 15:40 ` Hao, Xudong
2013-03-19 0:34 ` Hanweidong
2013-03-26 9:37 ` Hanweidong
2013-04-15 21:22 ` Pasi Kärkkäinen
2013-04-16 0:44 ` David TECHER
2013-04-16 3:54 ` Pasi Kärkkäinen
2013-04-16 9:21 ` David TECHER
2013-04-16 12:45 ` Hanweidong
2013-04-16 12:37 ` George Dunlap
2013-04-16 12:46 ` Ian Campbell
2013-04-25 3:46 ` Hanweidong
2013-04-25 8:12 ` Hao, Xudong
2013-04-25 14:23 ` Hanweidong
2013-04-25 10:29 ` George Dunlap
2013-04-25 14:24 ` Hanweidong
2013-05-09 16:49 ` Pasi Kärkkäinen
2013-05-17 7:10 ` Hanweidong
2013-05-17 7:37 ` Gordan Bobic
2013-05-20 8:20 ` Pasi Kärkkäinen
2013-05-20 11:29 ` George Dunlap
2013-05-20 13:00 ` Stefano Stabellini
2013-05-20 18:43 ` Gordan Bobic
2013-05-21 4:09 ` Hanweidong
2013-05-22 15:17 ` Gordan Bobic [this message]
2013-05-22 18:11 ` Andrew Bobulsky
2013-05-22 18:41 ` Gordan Bobic
2013-05-23 14:38 ` Hanweidong
2013-05-29 16:18 ` Stefano Stabellini
2013-05-30 1:29 ` Hanweidong
2013-05-30 10:27 ` GPU passthrough issue when VM is configured with 4G memoryo Stefano Stabellini
2013-05-30 10:45 ` Hanweidong
2013-06-03 13:11 ` GPU passthrough issue when VM is configured with 4G memory Konrad Rzeszutek Wilk
2013-06-03 15:14 ` Stefano Stabellini
2013-09-26 20:09 ` GPU passthrough issue when VM is configured with 4G memory / Xen 4.4 Pasi Kärkkäinen
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