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From: Thomas Huth <thuth@redhat.com>
To: "Zhao, Shirley" <shirley.zhao@intel.com>,
	"qemu-devel@nongnu.org" <qemu-devel@nongnu.org>
Cc: virtio-fs@redhat.com, Stefan Hajnoczi <stefanha@redhat.com>,
	"Dr. David Alan Gilbert" <dgilbert@redhat.com>
Subject: Re: [Qemu] how to use viriofs in qemu without NUMA
Date: Tue, 5 Jul 2022 09:48:32 +0200	[thread overview]
Message-ID: <3b6c8e16-3712-3402-3ab2-17bf53ec64a8@redhat.com> (raw)
In-Reply-To: <BY5PR11MB42911D5BF55D9FAF501F64F68D819@BY5PR11MB4291.namprd11.prod.outlook.com>

On 05/07/2022 03.02, Zhao, Shirley wrote:
> Hi, all,
> 
> I want to use virtiofs to share folder between host and guest.
> 
>  From the guide, it must set the NUMA node. 
> https://virtio-fs.gitlab.io/howto-qemu.html 
> 
> But my guest doesn’t support NUMA.
> 
> Is there any guide to use qemu + virtiofs without NUMA?
> 
> Or does qemu have any plan to support it?

  Hi!

At least on s390x, you can also specify the memory backend via the -machine 
option instead of using the -numa option, e.g.:

  qemu-system-s390x -machine memory-backend=mem \
   -object memory-backend-file,id=mem,...

Not sure whether that works on other architectures, too, though. Stefan, 
David, do you know?

  Thomas



WARNING: multiple messages have this Message-ID (diff)
From: Thomas Huth <thuth@redhat.com>
To: "Zhao, Shirley" <shirley.zhao@intel.com>,
	"qemu-devel@nongnu.org" <qemu-devel@nongnu.org>
Cc: virtio-fs@redhat.com, Stefan Hajnoczi <stefanha@redhat.com>,
	"Dr. David Alan Gilbert" <dgilbert@redhat.com>
Subject: Re: [Virtio-fs] [Qemu] how to use viriofs in qemu without NUMA
Date: Tue, 5 Jul 2022 09:48:32 +0200	[thread overview]
Message-ID: <3b6c8e16-3712-3402-3ab2-17bf53ec64a8@redhat.com> (raw)
In-Reply-To: <BY5PR11MB42911D5BF55D9FAF501F64F68D819@BY5PR11MB4291.namprd11.prod.outlook.com>

On 05/07/2022 03.02, Zhao, Shirley wrote:
> Hi, all,
> 
> I want to use virtiofs to share folder between host and guest.
> 
>  From the guide, it must set the NUMA node. 
> https://virtio-fs.gitlab.io/howto-qemu.html 
> 
> But my guest doesn’t support NUMA.
> 
> Is there any guide to use qemu + virtiofs without NUMA?
> 
> Or does qemu have any plan to support it?

  Hi!

At least on s390x, you can also specify the memory backend via the -machine 
option instead of using the -numa option, e.g.:

  qemu-system-s390x -machine memory-backend=mem \
   -object memory-backend-file,id=mem,...

Not sure whether that works on other architectures, too, though. Stefan, 
David, do you know?

  Thomas


  reply	other threads:[~2022-07-05  7:51 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-07-05  1:02 [Qemu] how to use viriofs in qemu without NUMA Zhao, Shirley
2022-07-05  7:48 ` Thomas Huth [this message]
2022-07-05  7:48   ` [Virtio-fs] " Thomas Huth
2022-07-05  8:03   ` Dr. David Alan Gilbert
2022-07-05  8:03     ` [Virtio-fs] " Dr. David Alan Gilbert
2022-07-05  9:01     ` Zhao, Shirley
2022-07-05  9:01       ` [Virtio-fs] " Zhao, Shirley
2022-07-05  9:36       ` Dr. David Alan Gilbert
2022-07-05  9:36         ` [Virtio-fs] " Dr. David Alan Gilbert
2022-07-08  0:40         ` Zhao, Shirley
2022-07-08  0:40           ` [Virtio-fs] " Zhao, Shirley
2022-07-12  7:06           ` Zhao, Shirley
2022-07-12  7:06             ` [Virtio-fs] " Zhao, Shirley
2022-07-12 12:33             ` Vivek Goyal
2022-07-13  5:43               ` Zhao, Shirley
2022-07-13  5:43                 ` Zhao, Shirley

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