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Subject: Re: [virtio-comment] Re: [PATCH v1 3/8] device-context: Define the device context fields for device migration
On Thu, Oct 26, 2023 at 07:04:38AM +0000, Parav Pandit wrote: > 1. It breaks the future TDISP model I really think brinding in TDISP muddies the waters a lot and should be avoided. We simply won't know until someone does the legwork and proposed the necessary spec extensions. In particular current legacy access commands are I thn > 2. Without hypervisor getting involved, all the member device MMIO space is accessible which follows the efficiency and equivalency principle of Jason listed paper > > I hope you are not implying to trap+emulate virtio interfaces (which is not listed in the pci-spec) in hypervisor for member passthrough devices. I feel this discussion will keep meandering because the terminology is vague. There's no single thing that is called "passthrough" - vendors just build what is expedient with current hardware and software. Nvidia has a bunch of people working on vfio so they call that passthrough, Red Hat has people working on VDPA and they call that passthrough, etc. Before I mute this discussion for good, does anyone here have any feeling progress is made? What kind of progress? -- MST
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