diff options
| author | Sean Christopherson <seanjc@google.com> | 2025-06-11 15:45:53 -0700 |
|---|---|---|
| committer | Sean Christopherson <seanjc@google.com> | 2025-06-23 09:50:44 -0700 |
| commit | d1bccaa1793d8f823983824635933e4bdc752b64 (patch) | |
| tree | 8e0353583258ae0dc4f3bc971f6fe26cd3734dac /arch | |
| parent | 04c4ca0ae47989d8f1263ffa6b77ab05d6160854 (diff) | |
KVM: x86: WARN if IRQ bypass isn't supported in kvm_pi_update_irte()
WARN if kvm_pi_update_irte() is reached without IRQ bypass support, as the
code is only reachable if the VM already has an IRQ bypass producer (see
kvm_irq_routing_update()), or from kvm_arch_irq_bypass_{add,del}_producer(),
which, stating the obvious, are called if and only if KVM enables its IRQ
bypass hooks.
Cc: David Matlack <dmatlack@google.com>
Link: https://lore.kernel.org/r/20250611224604.313496-52-seanjc@google.com
Signed-off-by: Sean Christopherson <seanjc@google.com>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/x86/kvm/irq.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/kvm/irq.c b/arch/x86/kvm/irq.c index b3b6cf5b828a..81a19d6afe44 100644 --- a/arch/x86/kvm/irq.c +++ b/arch/x86/kvm/irq.c @@ -517,7 +517,7 @@ static int kvm_pi_update_irte(struct kvm_kernel_irqfd *irqfd, struct kvm_lapic_irq irq; int r; - if (!irqchip_in_kernel(kvm) || !kvm_arch_has_irq_bypass()) + if (!irqchip_in_kernel(kvm) || WARN_ON_ONCE(!kvm_arch_has_irq_bypass())) return 0; if (entry && entry->type == KVM_IRQ_ROUTING_MSI) { |