Re: [External] Re: [RFC PATCH] migration: reduce time of loading non-iterable vmstate

[Chuang Xu]

Hi, Peter!

This email is a supplement to my previous email 7 hours ago.

On 2022/12/9 上午12:00, Peter Xu wrote:

> If the assert will work that'll be even better.  I'm actually worried this
> can trigger like what you mentioned in the virtio path, I didn't expect it
> comes that soon.  So if there's a minimum cases and we can fixup easily
> that'll be great.  Hopefully there aren't so much or we'll need to revisit
> the whole idea.
>
> Thanks,
>
>     
Only delaying virtio_init_region_cache() will result in the failure of the 
checks and caches following original virtio_init_region_cache().

Here are the patches related to these checks and cache operation:
https://gitlab.com/qemu-project/qemu/-/commit/1abeb5a65d515f8a8a9cfc4a82342f731bd9321f
https://gitlab.com/qemu-project/qemu/-/commit/be1fea9bc286f64c6c995bb0d7145a0b738aeddb
https://gitlab.com/qemu-project/qemu/-/commit/b796fcd1bf2978aed15748db04e054f34789e9eb
https://gitlab.com/qemu-project/qemu/-/commit/bccdef6b1a204db0f41ffb6e24ce373e4d7890d4

I think I should try to postpone these checks and caches too..

Thanks!