Re: [RFC PATCH v3 0/6] Add support for AMD IOMMU GAPPI
Sean Christopherson <[email protected]>
| Newsgroups | org.kernel.vger.linux-doc,dev.linux.lists.iommu,org.kernel.vger.kvm,org.kernel.vger.linux-kernel |
|---|---|
| Message-ID | <[email protected]> |
On Mon, Jul 13, 2026, Sairaj Kodilkar wrote: > On newer generations of AMD processors, IOMMU AVIC/x2AVIC guest-mode interrupt > remapping can use Guest APIC Physical Processor Interrupt (GAPPI) as an > alternative host-notification path when device interrupts target a vCPU that > is not running (IRTE[IsRun] = 0). Why is this still an RFC? I mean that in a good way. I haven't looked at this super duper closely, but the patches all look to be in generally good shape. I.e. this seems well beyond RFC, unless there's a hard blocker or something, e.g. known bugs? Another bigger picture comment: I'm very tempted to say this has a hard dependency on KVM's irq_test[*] adding support for AMD. I know it's being worked on, but I can't remember who is doing the work, or when it's expected... [*] https://lore.kernel.org/all/[email protected]