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virtio-pci: thinko fix
Since patch ed757e140c0ada220f213036e4497315d24ca8bct, virtio will sometimes clear all status registers on bus master disable, which loses information such as VIRTIO_CONFIG_S_FAILED bit. This is a result of a patch being misapplied: code uses ! instead of ~ for bit operations as in Yan's original patch. This obviously does not make sense. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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@ -374,7 +374,7 @@ static void virtio_write_config(PCIDevice *pci_dev, uint32_t address,
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if (PCI_COMMAND == address) {
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if (!(val & PCI_COMMAND_MASTER)) {
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proxy->vdev->status &= !VIRTIO_CONFIG_S_DRIVER_OK;
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proxy->vdev->status &= ~VIRTIO_CONFIG_S_DRIVER_OK;
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}
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}
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