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Subject: Re: [virtio-comment] Re: [PATCH v2 0/2] transport-pci: Introduce legacy registers access using AQ
On Tue, May 16, 2023 at 09:49:19PM +0000, Parav Pandit wrote: > > > From: Michael S. Tsirkin <mst@redhat.com> > > Sent: Tuesday, May 16, 2023 5:12 PM > > > > > Nah, we don't need a "break randomly unless it's a full moon and you cross your > > heart three times" mode. If you are going to implement support for legacy > > emulation implement it in a way that either predictably works or predictably > > refuses to load. > > It works with same level of predictability as current legacy interface definition for x86_64 platform when msix in guest is supported. > > Supporting intx we discussed to deal incrementally after this. Only thing I am worried is that we do not decide to go back to msix vector after all because of the shifting offset of device config. As I said, split device and transport configs to separate commands rather than just using offset and then I think it's ok to defer INTx work a bit. Though I feel it's valuable and will help us move towards more important goals like LM. -- MST
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