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pci: add reserved slot check to do_pci_register_device()

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Add a new slot_reserved_mask bitmask to PCIBus indicating whether or not each
PCI slot on the bus is reserved. Ensure that it is initialised to zero to
maintain the existing behaviour that all slots are available by default, and
add the additional check with appropriate error reporting to
do_pci_register_device().

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Marcel Apfelbaum <marcel@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Mark Cave-Ayland 2017-07-16 21:27:34 +01:00 • committed by Michael S. Tsirkin
parent 9b717a3a13
commit 8b8849844f
2 changed files with 16 additions and 3 deletions
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1
include/hw/pci/pci_bus.h
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@ -23,6 +23,7 @@ struct PCIBus {
PCIIOMMUFunc iommu_fn;
void *iommu_opaque;
uint8_t devfn_min;
uint32_t slot_reserved_mask;
pci_set_irq_fn set_irq;
pci_map_irq_fn map_irq;
pci_route_irq_fn route_intx_to_irq;