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Subject: Re: [PATCH] content: Replace guest OS with driver
On Tue, May 16, 2023 at 08:59:32PM +0000, Parav Pandit wrote: > > > From: Michael S. Tsirkin <mst@redhat.com> > > Sent: Tuesday, May 16, 2023 4:48 PM > > > > On Tue, May 16, 2023 at 07:50:48PM +0000, Parav Pandit wrote: > > > > > > > From: Michael S. Tsirkin <mst@redhat.com> > > > > Sent: Tuesday, May 16, 2023 6:05 AM > > > > > > > > > > > SO I propose: > > > > > > > > \item[ACKNOWLEDGE (1)] Indicates that a transport driver has found the > > > > device and recognized it as a valid virtio device transport. > > > > > > > > \item[DRIVER (2)] Indicates that a device type specific driver was found > > > > and will attempt to attach to the device. > > > > > > > Above bisection is a implementation specific example of Linux (though valid > > and widely used one). > > > > > > The UEFI virtio driver doesn't even have such two drivers. > > > In some OS variant drivers are merged to single kernel binary. > > > > which one? > > > Flavor of a RHEL has inbuilt. What does this mean exactly? That virtio core is compiled into kernel? That does not matter at all. > > > Does driver only matter with device_driver structure or module binary?... > > > > Can't parse your question. > > > > > Driver is largely the software entity that drives the device. > > > I think we can keep the spec simple enough to not mix these details and just > > call it a "driver". > > > > Not just linux there are lots of drivers like this. the two bits pass useful > > information the way you changed it this distinction is lots. > > I agree it is worth thinking what exactly does it mean. > > Since you researched it - what exactly do drivers such as uefi and the unnamed > > "some OS variant" do exactly? > There is just one "driver" virtio_net_pci that has sets the required bits. > > > when do they set ACKNOWLEDGE and when DRIVER? > > > Not any different flow. > Entity is one. question is, what happens - before ACKNOWLEDGE - after ACKNOWLEDGE before DRIVER ?
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