KVM: PPC: Book3S HV: XIVE: Fix mapping of passthrough interrupts
PCI MSI interrupt numbers are now mapped in a PCI-MSI domain but the
underlying calls handling the passthrough of the interrupt in the
guest need a number in the XIVE IRQ domain.
Use the IRQ data mapped in the XIVE IRQ domain and not the one in the
PCI-MSI domain.
Signed-off-by: Cédric Le Goater <[email protected]>
Signed-off-by: Michael Ellerman <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
diff --git a/arch/powerpc/kvm/book3s_xive.c b/arch/powerpc/kvm/book3s_xive.c
index 45a0434..6878026 100644
--- a/arch/powerpc/kvm/book3s_xive.c
+++ b/arch/powerpc/kvm/book3s_xive.c
@@ -927,7 +927,8 @@ int kvmppc_xive_set_mapped(struct kvm *kvm, unsigned long guest_irq,
struct kvmppc_xive *xive = kvm->arch.xive;
struct kvmppc_xive_src_block *sb;
struct kvmppc_xive_irq_state *state;
- struct irq_data *host_data = irq_get_irq_data(host_irq);
+ struct irq_data *host_data =
+ irq_domain_get_irq_data(irq_get_default_host(), host_irq);
unsigned int hw_irq = (unsigned int)irqd_to_hwirq(host_data);
u16 idx;
u8 prio;
diff --git a/kernel/irq/irqdomain.c b/kernel/irq/irqdomain.c
index 51c483c..0eee481 100644
--- a/kernel/irq/irqdomain.c
+++ b/kernel/irq/irqdomain.c
@@ -491,6 +491,7 @@ struct irq_domain *irq_get_default_host(void)
{
return irq_default_domain;
}
+EXPORT_SYMBOL_GPL(irq_get_default_host);
static bool irq_domain_is_nomap(struct irq_domain *domain)
{
