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[Qemu-devel] question about qemu IO process
From: |
ousuju |
Subject: |
[Qemu-devel] question about qemu IO process |
Date: |
Thu, 15 Dec 2016 14:50:41 +0800 |
Hello, I'm a newbie of Qemu. sorry about my stupid question.
I recently try to figure out the the whole IO process in qemu, I have traced
most parts of this process, but I'm still confused about how guest OS notify
qemu to handle virtqueue
I traced to virtio_queue_host_notifier_read -> event_notifier_test_and_clear,
and qemu will read e->rfd, so I assumed that some part of code will write to
this descriptor, to notify qemu
Unfortunatelly, I have set some breakpoints but noting catched yet.
Could someone point it out for me which code write to this descriptor? Or show
me the web link about this design?
Thanks a lot!
sou
- [Qemu-devel] question about qemu IO process,
ousuju <=