RE: [Xen-devel] [PATCH 0/4] HVM Virtual S3 --- Revised and resent

["Ke, Liping" <liping.ke@xxxxxxxxx>]

> Actually it won't work if the domain has PV drivers installed because
> then we expect it to run far enough to suspend itself. But if it has
> no PV drivers then it should not matter that it is s3suspended.
> However it will magically s3resume when we restore the guest.
> 
OK. Another thing is that
when debugging, we found when s3_sleep, it will generate the acpi_ioport
write operation, it is not cleared so v->defer_shutdown is set when s3_suspend.
Then it will prevent save process to do domain_shutdown, save process will hang.
So we clear defer_shutdown flag for each vcpu when do s3_suspend.

After refactory since we did not clear the flag, I am not sure whether 
this problem will exist. I will have a try tomorrow.

Thanks a lot!
Criping

>   -- Keir


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