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RE: [QUESTION] About virtio and eventloop

From: zhukeqian
Subject: RE: [QUESTION] About virtio and eventloop
Date: Wed, 18 Jan 2023 11:10:56 +0000
Hi Stefan, this indeed helps, thank you.

Keqian

On Mon, 16 Jan 2023 at 03:20, zhukeqian via <qemu-devel@nongnu.org> wrote:
> And if IO operation is blocked, is vCPU thread will blocked when do deactivate?

Yes, blk_drain() is a synchronous function. It blocks until in-flight
I/O has finished. The vcpu thread will be blocked in
virtio_pci_common_write().

Stefan

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