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KVM: x86: Nullify irqfd->producer after updating IRTEs

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Nullify irqfd->producer (when it's going away) _after_ updating IRTEs so
that the producer can be queried during the update.

Link: https://lore.kernel.org/r/20250611224604.313496-29-seanjc@google.com
Signed-off-by: Sean Christopherson <seanjc@google.com>
This commit is contained in:
Sean Christopherson 2025-06-11 15:45:30 -07:00
parent f5369619f7
commit 9517aedecd
1 changed files with 1 additions and 2 deletions
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3
arch/x86/kvm/irq.c
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@ -549,7 +549,6 @@ void kvm_arch_irq_bypass_del_producer(struct irq_bypass_consumer *cons,
* KVM must relinquish control of the IRTE.
*/
spin_lock_irq(&kvm->irqfds.lock);
irqfd->producer = NULL;
if (irqfd->irq_entry.type == KVM_IRQ_ROUTING_MSI) {
ret = kvm_x86_call(pi_update_irte)(irqfd, irqfd->kvm, prod->irq,
@ -558,10 +557,10 @@ void kvm_arch_irq_bypass_del_producer(struct irq_bypass_consumer *cons,
pr_info("irq bypass consumer (eventfd %p) unregistration fails: %d\n",
irqfd->consumer.eventfd, ret);
}
irqfd->producer = NULL;
spin_unlock_irq(&kvm->irqfds.lock);
kvm_arch_end_assignment(irqfd->kvm);
}