Re: [RFC] hw/nvme: Use irqfd to send interrupts

[Jinhao Fan]

at 6:21 PM, Stefan Hajnoczi <stefanha@gmail.com> wrote:

> What happens when the MSI-X vector is masked?
> 
> I remember the VIRTIO code having masking support. I'm on my phone and can't 
> check now, but I think it registers a temporary eventfd and buffers irqs 
> while the vector is masked.

Hi Stefan,

While implementing interrupt masking support, I found it hard to test this
feature on the host. Keith told me that no NVMe drivers are currently using
this feature. Do you remember how you tested interrupt masking?

Regards,
Jinhao Fan