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hw/pci-host/gpex: Set INTx index/gsi mapping 

To implement INTx to gsi routing we need to pass the gpex host
bridge the gsi associated to each INTx index. Let's introduce
irq_num array and gpex_set_irq_num setter function.

Signed-off-by: Pranavkumar Sawargaonkar <pranavkumar@linaro.org>
Signed-off-by: Tushar Jagad <tushar.jagad@linaro.org>
Signed-off-by: Eric Auger <eric.auger@redhat.com>
Tested-by: Feng Kan <fkan@apm.com>
Reviewed-by: Andrew Jones <drjones@redhat.com>
Message-id: 1505296004-6798-2-git-send-email-eric.auger@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Pranavkumar Sawargaonkar 2017-09-14 18:43:18 +01:00 committed by Peter Maydell
parent 37e29a6425
commit 70bfdce6a1
2 changed files with 13 additions and 0 deletions
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10
hw/pci-host/gpex.c
View File

@ -43,6 +43,16 @@ static void gpex_set_irq(void *opaque, int irq_num, int level)
qemu_set_irq(s->irq[irq_num], level); qemu_set_irq(s->irq[irq_num], level);
} }
int gpex_set_irq_num(GPEXHost *s, int index, int gsi)
{
if (index >= GPEX_NUM_IRQS) {
return -EINVAL;
}
s->irq_num[index] = gsi;
return 0;
}
static void gpex_host_realize(DeviceState *dev, Error **errp) static void gpex_host_realize(DeviceState *dev, Error **errp)
{ {
PCIHostState *pci = PCI_HOST_BRIDGE(dev); PCIHostState *pci = PCI_HOST_BRIDGE(dev);

3
include/hw/pci-host/gpex.h
View File

@ -51,6 +51,9 @@ typedef struct GPEXHost {
MemoryRegion io_ioport; MemoryRegion io_ioport;
MemoryRegion io_mmio; MemoryRegion io_mmio;
qemu_irq irq[GPEX_NUM_IRQS]; qemu_irq irq[GPEX_NUM_IRQS];
int irq_num[GPEX_NUM_IRQS];
} GPEXHost; } GPEXHost;
int gpex_set_irq_num(GPEXHost *s, int index, int gsi);
#endif /* HW_GPEX_H */ #endif /* HW_GPEX_H */