Hey guys, So I am writing a virtIO driver for a device that supports blocking calls like poll() etc. Now the front end paravirtualized driver mirrors the request to the backend "host" qemu process that then does the actual call on the host kernel on behalf of the guest. Now my question is, when I do a blocking call from within the callback that I have registered when I created the virtqueue, does it block the entire vcpu? If it does, do I have to create an async context for it? Looking at virtio-net and virtio-block, I can see the concept of bottom halves but I am not sure if this helps me in any way.
Sorry guys, I am just starting to hack on QEMU, so some of my questions might be newbie-ish. Any help, pointers will be much appreciated. Cheers, Ani ============================================================ The information contained in this message may be privileged and confidential and protected from disclosure. If the reader of this message is not the intended recipient, or an employee or agent responsible for delivering this message to the intended recipient, you are hereby notified that any reproduction, dissemination or distribution of this communication is strictly prohibited. If you have received this communication in error, please notify us immediately by replying to the message and deleting it from your computer. Thank you. Tellabs ============================================================
