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vfio-user: handle device interrupts

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Forward remote device's interrupts to the guest

Signed-off-by: Elena Ufimtseva <elena.ufimtseva@oracle.com>
Signed-off-by: John G Johnson <john.g.johnson@oracle.com>
Signed-off-by: Jagannathan Raman <jag.raman@oracle.com>
Message-id: 9523479eaafe050677f4de2af5dd0df18c27cfd9.1655151679.git.jag.raman@oracle.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
This commit is contained in:
Jagannathan Raman 2022-06-13 16:26:33 -04:00 • committed by Stefan Hajnoczi
parent 3123f93d6b
commit 08cf3dc611
13 changed files with 298 additions and 12 deletions
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13
hw/pci/pci.c
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@ -317,6 +317,15 @@ void pci_device_deassert_intx(PCIDevice *dev)
}
}
static void pci_msi_trigger(PCIDevice *dev, MSIMessage msg)
{
MemTxAttrs attrs = {};
attrs.requester_id = pci_requester_id(dev);
address_space_stl_le(&dev->bus_master_as, msg.address, msg.data,
attrs, NULL);
}
static void pci_reset_regions(PCIDevice *dev)
{
int r;
@ -1212,6 +1221,8 @@ static void pci_qdev_unrealize(DeviceState *dev)
pci_device_deassert_intx(pci_dev);
do_pci_unregister_device(pci_dev);
pci_dev->msi_trigger = NULL;
}
void pci_register_bar(PCIDevice *pci_dev, int region_num,
@ -2251,6 +2262,8 @@ static void pci_qdev_realize(DeviceState *qdev, Error **errp)
}
pci_set_power(pci_dev, true);
pci_dev->msi_trigger = pci_msi_trigger;
}
PCIDevice *pci_new_multifunction(int devfn, bool multifunction,