Re: [Qemu-devel] [PATCH v3 for-4.0 2/7] vhost-user: Support providing shared memory to backend

2019-01-03 Thread Yongji Xie
On Fri, 4 Jan 2019 at 01:13, Michael S. Tsirkin wrote: > > On Thu, Jan 03, 2019 at 06:18:14PM +0800, elohi...@gmail.com wrote: > > From: Xie Yongji > > > > This patch introduces two new messages VHOST_USER_GET_SHM_SIZE > > and VHOST_USER_SET_SHM_FD to support providing shared > > memory to backen

Re: [Qemu-devel] [PATCH v3 for-4.0 2/7] vhost-user: Support providing shared memory to backend

2019-01-03 Thread Yongji Xie
On Fri, 4 Jan 2019 at 10:41, Michael S. Tsirkin wrote: > > On Fri, Jan 04, 2019 at 10:31:34AM +0800, Yongji Xie wrote: > > On Fri, 4 Jan 2019 at 01:02, Michael S. Tsirkin wrote: > > > > > > On Thu, Jan 03, 2019 at 06:18:14PM +0800, elohi...@gmail.com wrote: > > > > From: Xie Yongji > > > > > > >

Re: [Qemu-devel] [PATCH v3 for-4.0 2/7] vhost-user: Support providing shared memory to backend

2019-01-03 Thread Michael S. Tsirkin
On Fri, Jan 04, 2019 at 10:31:34AM +0800, Yongji Xie wrote: > On Fri, 4 Jan 2019 at 01:02, Michael S. Tsirkin wrote: > > > > On Thu, Jan 03, 2019 at 06:18:14PM +0800, elohi...@gmail.com wrote: > > > From: Xie Yongji > > > > > > This patch introduces two new messages VHOST_USER_GET_SHM_SIZE > > >

Re: [Qemu-devel] [PATCH v3 for-4.0 2/7] vhost-user: Support providing shared memory to backend

2019-01-03 Thread Yongji Xie
On Fri, 4 Jan 2019 at 01:02, Michael S. Tsirkin wrote: > > On Thu, Jan 03, 2019 at 06:18:14PM +0800, elohi...@gmail.com wrote: > > From: Xie Yongji > > > > This patch introduces two new messages VHOST_USER_GET_SHM_SIZE > > and VHOST_USER_SET_SHM_FD to support providing shared > > memory to backen

Re: [Qemu-devel] [PATCH v3 for-4.0 2/7] vhost-user: Support providing shared memory to backend

2019-01-03 Thread Michael S. Tsirkin
On Thu, Jan 03, 2019 at 06:18:14PM +0800, elohi...@gmail.com wrote: > From: Xie Yongji > > This patch introduces two new messages VHOST_USER_GET_SHM_SIZE > and VHOST_USER_SET_SHM_FD to support providing shared > memory to backend. > > Firstly, qemu uses VHOST_USER_GET_SHM_SIZE to get the > requi

Re: [Qemu-devel] [PATCH v3 for-4.0 2/7] vhost-user: Support providing shared memory to backend

2019-01-03 Thread Michael S. Tsirkin
On Thu, Jan 03, 2019 at 06:18:14PM +0800, elohi...@gmail.com wrote: > From: Xie Yongji > > This patch introduces two new messages VHOST_USER_GET_SHM_SIZE > and VHOST_USER_SET_SHM_FD to support providing shared > memory to backend. So this seems a bit vague. Since we are going to use it for track

[Qemu-devel] [PATCH v3 for-4.0 2/7] vhost-user: Support providing shared memory to backend

2019-01-03 Thread elohimes
From: Xie Yongji This patch introduces two new messages VHOST_USER_GET_SHM_SIZE and VHOST_USER_SET_SHM_FD to support providing shared memory to backend. Firstly, qemu uses VHOST_USER_GET_SHM_SIZE to get the required size of shared memory from backend. Then, qemu allocates memory and sends them b