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| author | Alexey Kardashevskiy <aik@ozlabs.ru> | 2013-09-26 16:18:48 +1000 |
|---|---|---|
| committer | Alexander Graf <agraf@suse.de> | 2013-10-25 23:25:47 +0200 |
| commit | 5cc7a967e9de8c7b16c15aee4cb9f5bfcf0c5989 (patch) | |
| tree | 2a685a99e349179e7a777366fc4ad9ace414e6c9 /hw/ppc/spapr_pci.c | |
| parent | 9554233c9b8fe7d94dfa53db09ce3d186f2e8b9e (diff) | |
| download | qemu-5cc7a967e9de8c7b16c15aee4cb9f5bfcf0c5989.tar.gz | |
spapr-pci: enable irqfd for INTx
This enables IRQFD for LSI (level triggered INTx interrupts) by adding
a spapr_route_intx_pin_to_irq() callback to the sPAPR PCI host bus. This
callback is called to know the global interrupt number to link resampling fd
with IRQFD's fd in KVM.
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Alexander Graf <agraf@suse.de>
Diffstat (limited to 'hw/ppc/spapr_pci.c')
| -rw-r--r-- | hw/ppc/spapr_pci.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/hw/ppc/spapr_pci.c b/hw/ppc/spapr_pci.c index 9b6ee32acf..edb4cb0413 100644 --- a/hw/ppc/spapr_pci.c +++ b/hw/ppc/spapr_pci.c @@ -432,6 +432,17 @@ static void pci_spapr_set_irq(void *opaque, int irq_num, int level) qemu_set_irq(spapr_phb_lsi_qirq(phb, irq_num), level); } +static PCIINTxRoute spapr_route_intx_pin_to_irq(void *opaque, int pin) +{ + sPAPRPHBState *sphb = SPAPR_PCI_HOST_BRIDGE(opaque); + PCIINTxRoute route; + + route.mode = PCI_INTX_ENABLED; + route.irq = sphb->lsi_table[pin].irq; + + return route; +} + /* * MSI/MSIX memory region implementation. * The handler handles both MSI and MSIX. @@ -610,6 +621,8 @@ static int spapr_phb_init(SysBusDevice *s) pci_setup_iommu(bus, spapr_pci_dma_iommu, sphb); + pci_bus_set_route_irq_fn(bus, spapr_route_intx_pin_to_irq); + QLIST_INSERT_HEAD(&spapr->phbs, sphb, list); /* Initialize the LSI table */ |