Re: [PATCH v10 06/12] vfio/migration: Block multiple devices migration

2023-02-15 Thread Juan Quintela
Avihai Horon wrote: > Currently VFIO migration doesn't implement some kind of intermediate > quiescent state in which P2P DMAs are quiesced before stopping or > running the device. This can cause problems in multi-device migration > where the devices are doing P2P DMAs, since the devices are not s

Re: [PATCH v10 06/12] vfio/migration: Block multiple devices migration

2023-02-10 Thread Cédric Le Goater
On 2/9/23 20:20, Avihai Horon wrote: Currently VFIO migration doesn't implement some kind of intermediate quiescent state in which P2P DMAs are quiesced before stopping or running the device. This can cause problems in multi-device migration where the devices are doing P2P DMAs, since the devices

[PATCH v10 06/12] vfio/migration: Block multiple devices migration

2023-02-09 Thread Avihai Horon
Currently VFIO migration doesn't implement some kind of intermediate quiescent state in which P2P DMAs are quiesced before stopping or running the device. This can cause problems in multi-device migration where the devices are doing P2P DMAs, since the devices are not stopped together at the same t