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authorCédric Le Goater <clg@kaod.org>2021-07-01 15:27:33 +0200
committerMichael Ellerman <mpe@ellerman.id.au>2021-08-10 23:14:59 +1000
commit51be9e51a8000ffc6a33083ceca9da9303ed4dc5 (patch)
treeb05cc4e56137886a17c134e622333f13705a7b37
parente5e78b15113a73d0294141d9796969fa7b10fa3c (diff)
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 <clg@kaod.org> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20210701132750.1475580-16-clg@kaod.org
-rw-r--r--arch/powerpc/kvm/book3s_xive.c3
-rw-r--r--kernel/irq/irqdomain.c1
2 files changed, 3 insertions, 1 deletions
diff --git a/arch/powerpc/kvm/book3s_xive.c b/arch/powerpc/kvm/book3s_xive.c
index 45a0434e9d85..6878026ee8ec 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 51c483ce2447..0eee4816edac 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)
{