Showing posts with label internals. Show all posts
Showing posts with label internals. Show all posts
Wednesday, March 22, 2023

How to debug stuck VIRTIO devices in QEMU

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Every once in a while a bug comes along where a guest hangs while communicating with a QEMU VIRTIO device. In this blog post I'll share ...
Friday, October 9, 2020

Requirements for out-of-process device emulation

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Over the past months I have participated in discussions about out-of-process device emulation. This post describes the requirements that hav...
Sunday, September 27, 2020

On unifying vhost-user and VIRTIO

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The recent development of a Linux driver framework called VIRTIO Data Path Acceleration (vDPA) has laid the groundwork for exciting...
Monday, August 24, 2020

QEMU Internals: Event loops

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This post explains event loops in QEMU v5.1.0 and their unique features compared to other event loop implementations. The APIs are n...
Wednesday, September 7, 2011

QEMU Internals: vhost architecture

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This post explains how vhost provides in-kernel virtio devices for KVM. I have been hacking on vhost-scsi and have answered questions about...
Wednesday, March 9, 2011

QEMU Internals: Big picture overview

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Last week I started the QEMU Internals series to share knowledge of how QEMU works. I dove straight in to the threading model without a h...
Saturday, March 5, 2011

QEMU Internals: Overall architecture and threading model

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This is the first post in a series on QEMU Internals aimed at developers. It is designed to share knowledge of how QEMU works and make it e...