On Fri, 07 Jun 2024 10:26:03 -0700, Sean Christopherson wrote: > Fix the nested posted interrupts bug Jim reported a while back[*], where > KVM fails to detect that a pending virtual interrupt for a halted L2 is a > valid wake event. My original analysis and the basic gits of my hack-a- > patch was correct, I just botched a few mundane details (I kept forgetting > the PIR is physically contiguous, while the ISR and IRR are not, *sigh*). > > [*] https://lore.kernel.org/all/20231207010302.2240506-1-jmattson@xxxxxxxxxx > > [...] Applied to kvm-x86 vmx, but it's sitting at the end of the branch in case someone has feedback. I'm out next week and really want to get this into 6.11-rc1, hence the quick-ish merge. [1/6] KVM: nVMX: Add a helper to get highest pending from Posted Interrupt vector https://github.com/kvm-x86/linux/commit/d83c36d822be [2/6] KVM: nVMX: Request immediate exit iff pending nested event needs injection https://github.com/kvm-x86/linux/commit/32f55e475ce2 [3/6] KVM: VMX: Split out the non-virtualization part of vmx_interrupt_blocked() https://github.com/kvm-x86/linux/commit/322a569c4b41 [4/6] KVM: nVMX: Check for pending posted interrupts when looking for nested events https://github.com/kvm-x86/linux/commit/27c4fa42b11a [5/6] KVM: nVMX: Fold requested virtual interrupt check into has_nested_events() https://github.com/kvm-x86/linux/commit/321ef62b0c5f [6/6] KVM: x86: WARN if a vCPU gets a valid wakeup that KVM can't yet inject https://github.com/kvm-x86/linux/commit/45405155d876 -- https://github.com/kvm-x86/linux/tree/next
