Re: [Virtio-fs] Status of DAX for virtio-fs/virtiofsd?

2023-09-06 Thread Hao Xu
On 9/6/23 21:57, Stefan Hajnoczi wrote: On Wed, 6 Sept 2023 at 09:07, Hao Xu wrote: On 5/18/23 00:26, Stefan Hajnoczi wrote: On Wed, 17 May 2023 at 11:54, Alex Bennée wrote: Hi Alex, There were two unresolved issues: 1. How to inject SIGBUS when the guest accesses a page that's beyon

Re: [Virtio-fs] Status of DAX for virtio-fs/virtiofsd?

2023-09-06 Thread Hao Xu
On 5/18/23 00:26, Stefan Hajnoczi wrote: On Wed, 17 May 2023 at 11:54, Alex Bennée wrote: Hi Alex, There were two unresolved issues: 1. How to inject SIGBUS when the guest accesses a page that's beyond the end-of-file. Hi Stefan, Does this SIGBUS issue exist if the guest kernel can be trust

Re: [Virtio-fs] [PATCH v2 2/4] vhost-user: Interface for migration state transfer

2023-07-21 Thread Hao Xu
On 7/21/23 16:07, Hanna Czenczek wrote: On 20.07.23 17:05, Hao Xu wrote: On 7/20/23 21:20, Hanna Czenczek wrote: On 20.07.23 14:13, Hao Xu wrote: On 7/12/23 19:17, Hanna Czenczek wrote: Add the interface for transferring the back-end's state during migration as defined previous

Re: [Virtio-fs] [PATCH v2 2/4] vhost-user: Interface for migration state transfer

2023-07-20 Thread Hao Xu
On 7/20/23 21:20, Hanna Czenczek wrote: On 20.07.23 14:13, Hao Xu wrote: On 7/12/23 19:17, Hanna Czenczek wrote: Add the interface for transferring the back-end's state during migration as defined previously in vhost-user.rst. Signed-off-by: Hanna Czenczek ---   include/hw/virtio/

Re: [Virtio-fs] [PATCH v2 2/4] vhost-user: Interface for migration state transfer

2023-07-20 Thread Hao Xu
On 7/12/23 19:17, Hanna Czenczek wrote: Add the interface for transferring the back-end's state during migration as defined previously in vhost-user.rst. Signed-off-by: Hanna Czenczek --- include/hw/virtio/vhost-backend.h | 24 + include/hw/virtio/vhost.h | 79 +++

Re: Question about performance comparison between virtio-fs and virtio-blk

2022-07-26 Thread Hao Xu
On 7/26/22 21:17, Vivek Goyal wrote: On Tue, Jul 26, 2022 at 08:55:38AM -0400, Stefan Hajnoczi wrote: On Tue, 26 Jul 2022 at 08:24, Hao Xu wrote: I watched your presentation about virtiofs in 2020, https://www.youtube.com/watch?v=EIVOzTsGMMI&t=232s which is really helpful to me, but I

Question about performance comparison between virtio-fs and virtio-blk

2022-07-26 Thread Hao Xu
Hi Stefan, I watched your presentation about virtiofs in 2020, https://www.youtube.com/watch?v=EIVOzTsGMMI&t=232s which is really helpful to me, but I have a question about the graph at 3:53, could you give me more info about the test, like what tool you use for the test, if it's fio, what