Hello,
I've got the following problem with KVM:
I'm running a proprietary OS under KVM, the OS is neither Linux/Unix,
nor Windows, and I don't get any IRQs from Virtio device. The Virtio
device in the system I'm running is a PCI Ethernet device. The device is
detected correctly, the IRQ line is also identified, its matches with
the IRQ line number retrieved by running lspci command when Linux is run
instead of the proprietary system.
When Linux is run on exactly the same virtual machine configuration
(with the Virtio device), the Virtio device is detected and works
correctly, there is traffic between the host and the guest.
When the only change in the configuration is that the type of the
virtual network interface is changed from Virtio to E1000, in both OSes:
the proprietary OS and Linux, the virtual network interface works correctly.
The question is: what steps is Virtio driver to perform to enable the
IRQs? (Obviously, Linux driver for Virtio performs these steps, the IRQs
are generated under Linux VM).
Any hint would be appreciated.
Thank you,
Pavel
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