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Overview

This document attempts to call out all the elements and mechanisms involved in the discovery as well as hotplug of PCI devices including

• QEMU framework
• APCI Tables and Methods
• Linux Kernel functions and tables

The logic pertaining to the GED interrupt based APCI eventing is specific to NEMU. The rest of this document is generic.

QEMU Hotplug Registration

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Hot plugging devices using ACPI, SHPC and native

This gist is to show different ways to hot plug devices in a Virtual Machine

Set up the environment

Create a device mapper

dd if=/dev/zero of=devmap.img count=1 bs=50M