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authorPeter Xu <peterx@redhat.com>2016-07-14 13:56:30 +0800
committerMichael S. Tsirkin <mst@redhat.com>2016-07-21 20:44:18 +0300
commitd1f6af6a17a66f58c238e1c26b928cf71c0c11da (patch)
tree5ba4a4d466df886dce2c0857ce92cfb3620ffbb9 /hw/virtio/virtio-pci.c
parentede9c94acf6cd1968de4188c0228b714ab871a86 (diff)
downloadqemu-d1f6af6a17a66f58c238e1c26b928cf71c0c11da.tar.gz
kvm-irqchip: simplify kvm_irqchip_add_msi_route
Changing the original MSIMessage parameter in kvm_irqchip_add_msi_route into the vector number. Vector index provides more information than the MSIMessage, we can retrieve the MSIMessage using the vector easily. This will avoid fetching MSIMessage every time before adding MSI routes. Meanwhile, the vector info will be used in the coming patches to further enable gsi route update notifications. Signed-off-by: Peter Xu <peterx@redhat.com> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'hw/virtio/virtio-pci.c')
-rw-r--r--hw/virtio/virtio-pci.c9
1 files changed, 3 insertions, 6 deletions
diff --git a/hw/virtio/virtio-pci.c b/hw/virtio/virtio-pci.c
index 2b34b43060..cbdfd59071 100644
--- a/hw/virtio/virtio-pci.c
+++ b/hw/virtio/virtio-pci.c
@@ -699,14 +699,13 @@ static uint32_t virtio_read_config(PCIDevice *pci_dev,
static int kvm_virtio_pci_vq_vector_use(VirtIOPCIProxy *proxy,
unsigned int queue_no,
- unsigned int vector,
- MSIMessage msg)
+ unsigned int vector)
{
VirtIOIRQFD *irqfd = &proxy->vector_irqfd[vector];
int ret;
if (irqfd->users == 0) {
- ret = kvm_irqchip_add_msi_route(kvm_state, msg, &proxy->pci_dev);
+ ret = kvm_irqchip_add_msi_route(kvm_state, vector, &proxy->pci_dev);
if (ret < 0) {
return ret;
}
@@ -757,7 +756,6 @@ static int kvm_virtio_pci_vector_use(VirtIOPCIProxy *proxy, int nvqs)
VirtioDeviceClass *k = VIRTIO_DEVICE_GET_CLASS(vdev);
unsigned int vector;
int ret, queue_no;
- MSIMessage msg;
for (queue_no = 0; queue_no < nvqs; queue_no++) {
if (!virtio_queue_get_num(vdev, queue_no)) {
@@ -767,8 +765,7 @@ static int kvm_virtio_pci_vector_use(VirtIOPCIProxy *proxy, int nvqs)
if (vector >= msix_nr_vectors_allocated(dev)) {
continue;
}
- msg = msix_get_message(dev, vector);
- ret = kvm_virtio_pci_vq_vector_use(proxy, queue_no, vector, msg);
+ ret = kvm_virtio_pci_vq_vector_use(proxy, queue_no, vector);
if (ret < 0) {
goto undo;
}