On 04/01/2014 04:47 PM, Christian Borntraeger wrote:
From: Ekaterina Tumanova <tumanova@xxxxxxxxxxxxxxxxxx> Add KVM_DEV_TYPE_S390_CONFIG kvm device that contains configuration and control attributes of particular vm. The device is created by KVM_CREATE_DEVICE ioctl. The attributes may be retrieved and stored by calling KVM_GET_DEVICE_ATTR and KVM_SET_DEVICE_ATTR ioctls. Signed-off-by: Ekaterina Tumanova <tumanova@xxxxxxxxxxxxxxxxxx> Signed-off-by: Christian Borntraeger <borntraeger@xxxxxxxxxx>
I don't think a device is particularly the best fit. A device can usually be instantiated multiple times. The configuration device can only be created once. A device also gets created by user space which enables it to receive the fd to drive it. Your device has to be created during VM creation.
I think VM configuration is common enough to just make this a separate interface.
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