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[Qemu-devel] [PATCH v3] virtio-pci: call pci reset variant when guest re
From: |
Gerd Hoffmann |
Subject: |
[Qemu-devel] [PATCH v3] virtio-pci: call pci reset variant when guest requests reset. |
Date: |
Thu, 28 Jan 2016 16:08:07 +0100 |
Actually fixes linux not finding virtio 1.0 device virtqueues after
reboot. Which is new I think, any chance linux kernel virtio code
became more strict in 4.3?
Signed-off-by: Gerd Hoffmann <address@hidden>
---
hw/virtio/virtio-pci.c | 11 ++++-------
1 file changed, 4 insertions(+), 7 deletions(-)
diff --git a/hw/virtio/virtio-pci.c b/hw/virtio/virtio-pci.c
index 94667e6..fb1b061 100644
--- a/hw/virtio/virtio-pci.c
+++ b/hw/virtio/virtio-pci.c
@@ -47,6 +47,7 @@
static void virtio_pci_bus_new(VirtioBusState *bus, size_t bus_size,
VirtIOPCIProxy *dev);
+static void virtio_pci_reset(DeviceState *qdev);
/* virtio device */
/* DeviceState to VirtIOPCIProxy. For use off data-path. TODO: use QOM. */
@@ -404,9 +405,7 @@ static void virtio_ioport_write(void *opaque, uint32_t
addr, uint32_t val)
case VIRTIO_PCI_QUEUE_PFN:
pa = (hwaddr)val << VIRTIO_PCI_QUEUE_ADDR_SHIFT;
if (pa == 0) {
- virtio_pci_stop_ioeventfd(proxy);
- virtio_reset(vdev);
- msix_unuse_all_vectors(&proxy->pci_dev);
+ virtio_pci_reset(DEVICE(proxy));
}
else
virtio_queue_set_addr(vdev, vdev->queue_sel, pa);
@@ -432,8 +431,7 @@ static void virtio_ioport_write(void *opaque, uint32_t
addr, uint32_t val)
}
if (vdev->status == 0) {
- virtio_reset(vdev);
- msix_unuse_all_vectors(&proxy->pci_dev);
+ virtio_pci_reset(DEVICE(proxy));
}
/* Linux before 2.6.34 drives the device without enabling
@@ -1351,8 +1349,7 @@ static void virtio_pci_common_write(void *opaque, hwaddr
addr,
}
if (vdev->status == 0) {
- virtio_reset(vdev);
- msix_unuse_all_vectors(&proxy->pci_dev);
+ virtio_pci_reset(DEVICE(proxy));
}
break;
--
1.8.3.1
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