motorhead/qemu
1
0
Fork 0
mirror of https://github.com/Motorhead1991/qemu.git synced 2025-08-05 16:53:55 -06:00
Code Issues Projects Releases Packages Wiki Activity Actions

pci: Add INTx routing notifier

Browse source 
This per-device notifier shall be triggered by any interrupt router
along the path of a device's legacy interrupt signal on routing changes.
For simplicity reasons and as this is a slow path anyway, no further
details on the routing changes are provided. Instead, the callback is
expected to use pci_device_route_intx_to_irq to check the effect of the
change.

Will be used by KVM PCI device assignment and VFIO.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Jan Kiszka 2012-07-02 14:38:47 +02:00 • committed by Michael S. Tsirkin
parent 3afa9bb488
commit 0ae1625177
3 changed files with 32 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

7
hw/pci.h
View file

@ -182,6 +182,7 @@ typedef struct PCIDeviceClass {
const char *romfile;
} PCIDeviceClass;
typedef void (*PCIINTxRoutingNotifier)(PCIDevice *dev);
typedef int (*MSIVectorUseNotifier)(PCIDevice *dev, unsigned int vector,
MSIMessage msg);
typedef void (*MSIVectorReleaseNotifier)(PCIDevice *dev, unsigned int vector);
@ -259,6 +260,9 @@ struct PCIDevice {
MemoryRegion rom;
uint32_t rom_bar;
/* INTx routing notifier */
PCIINTxRoutingNotifier intx_routing_notifier;
/* MSI-X notifiers */
MSIVectorUseNotifier msix_vector_use_notifier;
MSIVectorReleaseNotifier msix_vector_release_notifier;
@ -318,6 +322,9 @@ PCIBus *pci_register_bus(DeviceState *parent, const char *name,
uint8_t devfn_min, int nirq);
void pci_bus_set_route_irq_fn(PCIBus *, pci_route_irq_fn);
PCIINTxRoute pci_device_route_intx_to_irq(PCIDevice *dev, int pin);
void pci_bus_fire_intx_routing_notifier(PCIBus *bus);
void pci_device_set_intx_routing_notifier(PCIDevice *dev,
PCIINTxRoutingNotifier notifier);
void pci_device_reset(PCIDevice *dev);
void pci_bus_reset(PCIBus *bus);