Re: [PATCH V3 00/13] allow cpr-reboot for vfio

[Steven Sistare <steven.sistare@oracle.com>]

On 2/20/2024 2:49 AM, Peter Xu wrote:
> On Thu, Feb 08, 2024 at 10:53:53AM -0800, Steve Sistare wrote:
>> Allow cpr-reboot for vfio if the guest is in the suspended runstate.  The
>> guest drivers' suspend methods flush outstanding requests and re-initialize
>> the devices, and thus there is no device state to save and restore.  The
>> user is responsible for suspending the guest before initiating cpr, such as
>> by issuing guest-suspend-ram to the qemu guest agent.
>>
>> Most of the patches in this series enhance migration notifiers so they can
>> return an error status and message.  The last few patches register a notifier
>> for vfio that returns an error if the guest is not suspended.
>>
>> Changes in V3:
>>   * update to tip, add RB's
>>   * replace MigrationStatus with new enum MigrationEventType
>>   * simplify migrate_fd_connect error recovery
>>   * support vfio iommufd containers
>>   * add patches:
>>       migration: stop vm for cpr
>>       migration: update cpr-reboot description
> 
> This doesn't apply to master anymore, please rebase when repost, thanks.

Will do.  Before I do, any comments on "migration: update cpr-reboot description"?
After we converge on that short description, I will submit a longer treatment in
docs/devel/migration, which I see you have recently populated.

- Steve