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From: Linhaifeng <haifeng.lin@huawei.com>
To: "Xie, Huawei" <huawei.xie@intel.com>, "dev@dpdk.org" <dev@dpdk.org>
Cc: "haifeng.lin@intel.com" <haifeng.lin@intel.com>
Subject: Re: [dpdk-dev] [PATCH RFC v2 08/12] lib/librte_vhost: vhost-user support
Date: Fri, 12 Dec 2014 10:25:59 +0800
Message-ID: <548A5237.9030805@huawei.com> (raw)
In-Reply-To: <C37D651A908B024F974696C65296B57B0F31FBD1@SHSMSX101.ccr.corp.intel.com>



On 2014/12/12 1:13, Xie, Huawei wrote:
>>
>> Only support one vhost-user port ?
> 
> Do you mean vhost server by "port"?
> If that is the case, yes, now only one vhost server is supported for multiple virtio devices.
> As stated in the cover letter, we have requirement and plan for multiple server support,
> though I am not sure if it is absolutely necessary.
> 
I think if you also want to suport client mode (qemu as server) is necessary to implement multiple server.

>>
>> Can you mmap the region if gpa is 0? When i run VM with two numa node (qemu
>> will create two hugepage file) found that always failed to mmap with the region
>> which gpa is 0.
> 
> Current implementation doesn't assume there is only one huge page file to back the guest memory.
> It maps every region using the fd of that region. 
> Could you please paste your guest VM command line here?
> 
>>
>> BTW can we ensure the memory regions cover with all the memory of hugepage
>> for VM?
> 
> I think so, because virtio devices could use any normal guest memory, but we needn't ensure that.
> We only need to map the region passed to us from qemu vhost, which should be enough to translate
> the GPA in vring from virtio in guest, otherwise it is the bug of qemu vhost.
> 
> 

-- 
Regards,
Haifeng

  reply	other threads:[~2014-12-12  2:26 UTC|newest]

Thread overview: 43+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-12-10 21:37 [dpdk-dev] [PATCH RFC v2 00/12] " Huawei Xie
2014-12-10 21:37 ` [dpdk-dev] [PATCH RFC v2 01/12] lib/librte_vhost: mov vhost-cuse implementation to vhost_cuse directory Huawei Xie
2014-12-10 21:37 ` [dpdk-dev] [PATCH RFC v2 02/12] lib/librte_vhost: rename vhost-net-cdev.h as vhost-net.h Huawei Xie
2014-12-10 21:37 ` [dpdk-dev] [PATCH RFC v2 03/12] lib/librte_vhost: move event_copy logic from virtio-net.c to vhost-net-cdev.c Huawei Xie
2015-01-07  9:10   ` Xie, Huawei
2014-12-10 21:37 ` [dpdk-dev] [PATCH RFC v2 04/12] lib/librte_vhost: copy of host_memory_map from virtio-net.c to new file virtio-net-cdev.c Huawei Xie
2014-12-10 21:37 ` [dpdk-dev] [PATCH RFC v2 05/12] lib/librte_vhost: host_memory_map refine Huawei Xie
2014-12-10 21:37 ` [dpdk-dev] [PATCH RFC v2 06/12] lib/librte_vhost: cuse_set_memory_table Huawei Xie
2014-12-15  5:20   ` Tetsuya Mukawa
2014-12-10 21:37 ` [dpdk-dev] [PATCH RFC v2 07/12] lib/librte_vhost: async event and callback Huawei Xie
2014-12-15  5:20   ` Tetsuya Mukawa
2014-12-17 17:51     ` Xie, Huawei
2014-12-10 21:37 ` [dpdk-dev] [PATCH RFC v2 08/12] lib/librte_vhost: vhost-user support Huawei Xie
2014-12-11  5:36   ` Linhaifeng
2015-01-05 10:21     ` Xie, Huawei
2015-01-23  3:40     ` Xie, Huawei
2015-01-23  3:53       ` Linhaifeng
2014-12-11  6:04   ` Linhaifeng
2014-12-11 17:13     ` Xie, Huawei
2014-12-12  2:25       ` Linhaifeng [this message]
2014-12-11 20:16     ` Xie, Huawei
2015-01-23  3:36     ` Xie, Huawei
2015-01-23  8:36       ` Linhaifeng
2014-12-16  3:05   ` Tetsuya Mukawa
2014-12-17  1:06     ` Xie, Huawei
2014-12-17  3:31       ` Tetsuya Mukawa
2014-12-17  4:22         ` Tetsuya Mukawa
2014-12-17 17:31           ` Xie, Huawei
2014-12-19  3:36             ` Tetsuya Mukawa
2014-12-24  7:21   ` Tetsuya Mukawa
2015-01-04  9:53     ` Xie, Huawei
2014-12-10 21:37 ` [dpdk-dev] [PATCH RFC v2 09/12] lib/librte_vhost: minor fix Huawei Xie
2014-12-10 21:37 ` [dpdk-dev] [PATCH RFC v2 10/12] lib/librte_vhost: vhost-user memory region map Huawei Xie
2014-12-16  2:38   ` Tetsuya Mukawa
2014-12-10 21:37 ` [dpdk-dev] [PATCH RFC v2 11/12] lib/librte_vhost: kick/callfd fix Huawei Xie
2014-12-10 21:37 ` [dpdk-dev] [PATCH RFC v2 12/12] lib/librte_vhost: cleanup when vhost user socket connection is closed Huawei Xie
2014-12-10 22:04 ` [dpdk-dev] [PATCH RFC v2 00/12] lib/librte_vhost: vhost-user support Xie, Huawei
2014-12-11  2:21   ` Tetsuya Mukawa
2014-12-15  5:26 ` Tetsuya Mukawa
2014-12-17 17:43   ` Xie, Huawei
2015-01-07 12:43     ` Qiu, Michael
2015-01-23  8:16 ` Linhaifeng
2015-01-26  7:24   ` Xie, Huawei

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