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docs: Add notes for PCI device hotplug on AArch64

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Signed-off-by: Henry Wang <Henry.Wang@arm.com>
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Henry Wang 2021-09-23 04:18:23 -04:00 committed by Rob Bradford
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docs/hotplug.md
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@ -159,6 +159,8 @@ The same API can also be used to reduce the desired RAM for a VM. It is importan
Extra PCI devices can be added and removed from a running Cloud Hypervisor instance. This is controlled by making a HTTP API request to the VMM to ask for the additional device to be added, or for the existing device to be removed.
Note: On AArch64 platform, PCI device hotplug can only be achieved using ACPI. Please refer to the [documentation](arm64.md#uefi-booting) for more information.
To use PCI device hotplug start the VM with the HTTP server.
```shell