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From: "Cédric Le Goater" <clg@kaod.org>
To: linuxppc-dev@lists.ozlabs.org
Cc: "Thomas Gleixner" <tglx@linutronix.de>,
	"Cédric Le Goater" <clg@kaod.org>
Subject: [PATCH v2 15/32] KVM: PPC: Book3S HV: XIVE: Fix mapping of passthrough interrupts
Date: Thu,  1 Jul 2021 15:27:33 +0200	[thread overview]
Message-ID: <20210701132750.1475580-16-clg@kaod.org> (raw)
In-Reply-To: <20210701132750.1475580-1-clg@kaod.org>

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.

Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
---
 arch/powerpc/kvm/book3s_xive.c | 3 ++-
 kernel/irq/irqdomain.c         | 1 +
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/arch/powerpc/kvm/book3s_xive.c b/arch/powerpc/kvm/book3s_xive.c
index 434da541a20b..d30eb35cc7f0 100644
--- a/arch/powerpc/kvm/book3s_xive.c
+++ b/arch/powerpc/kvm/book3s_xive.c
@@ -926,7 +926,8 @@ 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 6284443b87ec..c8c06318dcbf 100644
--- a/kernel/irq/irqdomain.c
+++ b/kernel/irq/irqdomain.c
@@ -481,6 +481,7 @@ struct irq_domain *irq_get_default_host(void)
 {
 	return irq_default_domain;
 }
+EXPORT_SYMBOL_GPL(irq_get_default_host);
 
 static void irq_domain_clear_mapping(struct irq_domain *domain,
 				     irq_hw_number_t hwirq)
-- 
2.31.1


  parent reply	other threads:[~2021-07-01 13:37 UTC|newest]

Thread overview: 34+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-07-01 13:27 [PATCH v2 00/32] powerpc: Add MSI IRQ domains to PCI drivers Cédric Le Goater
2021-07-01 13:27 ` [PATCH v2 01/32] powerpc/pseries/pci: Introduce __find_pe_total_msi() Cédric Le Goater
2021-07-01 13:27 ` [PATCH v2 02/32] powerpc/pseries/pci: Introduce rtas_prepare_msi_irqs() Cédric Le Goater
2021-07-01 13:27 ` [PATCH v2 03/32] powerpc/xive: Add support for IRQ domain hierarchy Cédric Le Goater
2021-07-01 13:27 ` [PATCH v2 04/32] powerpc/xive: Ease debugging of xive_irq_set_affinity() Cédric Le Goater
2021-07-01 13:27 ` [PATCH v2 05/32] powerpc/pseries/pci: Add MSI domains Cédric Le Goater
2021-07-01 13:27 ` [PATCH v2 06/32] powerpc/xive: Drop unmask of MSIs at startup Cédric Le Goater
2021-07-01 13:27 ` [PATCH v2 07/32] powerpc/xive: Remove irqd_is_started() check when setting the affinity Cédric Le Goater
2021-07-01 13:27 ` [PATCH v2 08/32] powerpc/pseries/pci: Add a domain_free_irqs() handler Cédric Le Goater
2021-07-01 13:27 ` [PATCH v2 09/32] powerpc/pseries/pci: Add a msi_free() handler to clear XIVE data Cédric Le Goater
2021-07-01 13:27 ` [PATCH v2 10/32] powerpc/pseries/pci: Add support of MSI domains to PHB hotplug Cédric Le Goater
2021-07-01 13:27 ` [PATCH v2 11/32] powerpc/powernv/pci: Introduce __pnv_pci_ioda_msi_setup() Cédric Le Goater
2021-07-01 13:27 ` [PATCH v2 12/32] powerpc/powernv/pci: Add MSI domains Cédric Le Goater
2021-07-01 13:27 ` [PATCH v2 13/32] KVM: PPC: Book3S HV: Use the new IRQ chip to detect passthrough interrupts Cédric Le Goater
2021-07-01 13:27 ` [PATCH v2 14/32] KVM: PPC: Book3S HV: XIVE: Change interface of passthrough interrupt routines Cédric Le Goater
2021-07-01 13:27 ` Cédric Le Goater [this message]
2021-07-01 13:27 ` [PATCH v2 16/32] powerpc/xics: Remove ICS list Cédric Le Goater
2021-07-01 13:27 ` [PATCH v2 17/32] powerpc/xics: Rename the map handler in a check handler Cédric Le Goater
2021-07-01 13:27 ` [PATCH v2 18/32] powerpc/xics: Give a name to the default XICS IRQ domain Cédric Le Goater
2021-07-01 13:27 ` [PATCH v2 19/32] powerpc/xics: Add debug logging to the set_irq_affinity handlers Cédric Le Goater
2021-07-01 13:27 ` [PATCH v2 20/32] powerpc/xics: Add support for IRQ domain hierarchy Cédric Le Goater
2021-07-01 13:27 ` [PATCH v2 21/32] powerpc/powernv/pci: Customize the MSI EOI handler to support PHB3 Cédric Le Goater
2021-07-01 13:27 ` [PATCH v2 22/32] powerpc/pci: Drop XIVE restriction on MSI domains Cédric Le Goater
2021-07-01 13:27 ` [PATCH v2 23/32] powerpc/xics: Drop unmask of MSIs at startup Cédric Le Goater
2021-07-01 13:27 ` [PATCH v2 24/32] powerpc/pseries/pci: Drop unused MSI code Cédric Le Goater
2021-07-01 13:27 ` [PATCH v2 25/32] powerpc/powernv/pci: " Cédric Le Goater
2021-07-01 13:27 ` [PATCH v2 26/32] powerpc/powernv/pci: Adapt is_pnv_opal_msi() to detect passthrough interrupt Cédric Le Goater
2021-07-01 13:27 ` [PATCH v2 27/32] powerpc/xics: Fix IRQ migration Cédric Le Goater
2021-07-01 13:27 ` [PATCH v2 28/32] powerpc/powernv/pci: Set the IRQ chip data for P8/CXL devices Cédric Le Goater
2021-07-01 13:27 ` [PATCH v2 29/32] powerpc/powernv/pci: Rework pnv_opal_pci_msi_eoi() Cédric Le Goater
2021-07-01 13:27 ` [PATCH v2 30/32] KVM: PPC: Book3S HV: XICS: Fix mapping of passthrough interrupts Cédric Le Goater
2021-07-01 13:27 ` [PATCH v2 31/32] powerpc/xive: Use XIVE domain under xmon and debugfs Cédric Le Goater
2021-07-01 13:27 ` [PATCH v2 32/32] genirq: Improve "hwirq" output in /proc and /sys/ Cédric Le Goater
2021-08-18 13:38 ` [PATCH v2 00/32] powerpc: Add MSI IRQ domains to PCI drivers Michael Ellerman

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