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Message-ID: <PH0PR12MB5481E16E2BC9C5B4B786FD91DCF9A@PH0PR12MB5481.namprd12.prod.outlook.com>
Date: Wed, 20 Sep 2023 07:51:20 +0000
From: Parav Pandit <parav@...dia.com>
To: "Zhu, Lingshan" <lingshan.zhu@...el.com>,
"Chen, Jiqian" <Jiqian.Chen@....com>,
"Michael S. Tsirkin" <mst@...hat.com>
CC: Gerd Hoffmann <kraxel@...hat.com>,
Jason Wang <jasowang@...hat.com>,
Xuan Zhuo <xuanzhuo@...ux.alibaba.com>,
David Airlie <airlied@...hat.com>,
Gurchetan Singh <gurchetansingh@...omium.org>,
Chia-I Wu <olvaffe@...il.com>,
Marc-André Lureau <marcandre.lureau@...il.com>,
Robert Beckett <bob.beckett@...labora.com>,
Mikhail Golubev-Ciuchea <Mikhail.Golubev-Ciuchea@...nsynergy.com>,
"virtio-comment@...ts.oasis-open.org"
<virtio-comment@...ts.oasis-open.org>,
"virtio-dev@...ts.oasis-open.org" <virtio-dev@...ts.oasis-open.org>,
"qemu-devel@...gnu.org" <qemu-devel@...gnu.org>,
"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
Stefano Stabellini <sstabellini@...nel.org>,
Roger Pau Monné <roger.pau@...rix.com>,
"Deucher, Alexander" <Alexander.Deucher@....com>,
"Koenig, Christian" <Christian.Koenig@....com>,
"Hildebrand, Stewart" <Stewart.Hildebrand@....com>,
Xenia Ragiadakou <burzalodowa@...il.com>,
"Huang, Honglei1" <Honglei1.Huang@....com>,
"Zhang, Julia" <Julia.Zhang@....com>,
"Huang, Ray" <Ray.Huang@....com>
Subject: 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 <lingshan.zhu@...el.com>
> 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.
Thanks.
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