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Re: [Xen-devel] [PATCH RESEND 00/14] Xen ARM DomU ACPI support

Hi Shannon,

On 31/05/16 06:02, Shannon Zhao wrote:
From: Shannon Zhao <shannon.zhao@xxxxxxxxxx>

The design of this feature is described as below.
Firstly, the toolstack (libxl) generates the ACPI tables according the
number of vcpus and gic controller.

Then, it copies these ACPI tables to DomU memory space and passes
them to UEFI firmware through the "ARM multiboot" protocol.

At last, UEFI gets the ACPI tables through the "ARM multiboot" protocol
and installs these tables like the usual way and passes both ACPI and DT
information to the Xen DomU.

Currently libxl only generates RSDP, XSDT, GTDT, MADT, FADT, DSDT tables
since it's enough now.

This has been tested using guest kernel with the Dom0 ACPI support
patches which could be fetched from:

Where can I find the UEFI firmware? What is the guest configuration to use?


Julien Grall

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