Re: [virtio-dev] Re: [virtio-comment] Re: [VIRTIO PCI PATCH v5 1/1] transport-pci: Add freeze_mode to virtio_pci_common_cfg

From: Zhu, Lingshan
Date: Wed Sep 20 2023 - 03:56:27 EST




On 9/20/2023 3:51 PM, Parav Pandit wrote:
From: Zhu, Lingshan <lingshan.zhu@xxxxxxxxx>
Sent: Wednesday, September 20, 2023 1:17 PM
This is not live or device migration. This is restoring the device context
initiated by the driver owning the device.
restore the device context should be done by the hypervisor before setting
DRIVER_OK and waking up the guest, not a concern here, out of spec
The framework is generic for the PCI devices hence, there may not be any hypervisor at all. Hence restore operation to trigger on DRIVER_OK setting, when previously suspended.

Since we already agree in previous email that re-read until device sets the DRIVER_OK, its fine to me. It covers the above restore condition.
OK

Thanks.