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kvm: Pass PCI device pointer to MSI routing functions

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In-kernel ITS emulation on ARM64 will require to supply requester IDs.
These IDs can now be retrieved from the device pointer using new
pci_requester_id() function.

This patch adds pci_dev pointer to KVM GSI routing functions and makes
callers passing it.

x86 architecture does not use requester IDs, but hw/i386/kvm/pci-assign.c
also made passing PCI device pointer instead of NULL for consistency with
the rest of the code.

Signed-off-by: Pavel Fedin <p.fedin@samsung.com>
Message-Id: <ce081423ba2394a4efc30f30708fca07656bc500.1444916432.git.p.fedin@samsung.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Pavel Fedin 2015-10-15 16:44:52 +03:00 • committed by Paolo Bonzini
parent a05f686ff3
commit dc9f06ca81
11 changed files with 31 additions and 25 deletions
Download patch file Download diff file Expand all files Collapse all files

11
hw/vfio/pci.c
View file

@ -424,7 +424,7 @@ static void vfio_add_kvm_msi_virq(VFIOPCIDevice *vdev, VFIOMSIVector *vector,
return;
}
virq = kvm_irqchip_add_msi_route(kvm_state, *msg);
virq = kvm_irqchip_add_msi_route(kvm_state, *msg, &vdev->pdev);
if (virq < 0) {
event_notifier_cleanup(&vector->kvm_interrupt);
return;
@ -449,9 +449,10 @@ static void vfio_remove_kvm_msi_virq(VFIOMSIVector *vector)
event_notifier_cleanup(&vector->kvm_interrupt);
}
static void vfio_update_kvm_msi_virq(VFIOMSIVector *vector, MSIMessage msg)
static void vfio_update_kvm_msi_virq(VFIOMSIVector *vector, MSIMessage msg,
PCIDevice *pdev)
{
kvm_irqchip_update_msi_route(kvm_state, vector->virq, msg);
kvm_irqchip_update_msi_route(kvm_state, vector->virq, msg, pdev);
}
static int vfio_msix_vector_do_use(PCIDevice *pdev, unsigned int nr,
@ -486,7 +487,7 @@ static int vfio_msix_vector_do_use(PCIDevice *pdev, unsigned int nr,
if (!msg) {
vfio_remove_kvm_msi_virq(vector);
} else {
vfio_update_kvm_msi_virq(vector, *msg);
vfio_update_kvm_msi_virq(vector, *msg, pdev);
}
} else {
vfio_add_kvm_msi_virq(vdev, vector, msg, true);
@ -760,7 +761,7 @@ static void vfio_update_msi(VFIOPCIDevice *vdev)
}
msg = msi_get_message(&vdev->pdev, i);
vfio_update_kvm_msi_virq(vector, msg);
vfio_update_kvm_msi_virq(vector, msg, &vdev->pdev);
}
}