Re: [Xen-devel] [PATCH v4 00/16] Xen ARM DomU ACPI support

[Shannon Zhao <zhaoshenglong@xxxxxxxxxx>]

On 2016/8/24 20:58, Wei Liu wrote:
> On Tue, Aug 16, 2016 at 06:24:57PM +0800, 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 non-RAM memory map 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 linux master or:
>> > https://git.kernel.org/cgit/linux/kernel/git/mfleming/efi.git/log/?h=efi/arm-xen
>> > 
>> > The UEFI binary could be fetched from or built from edk2 master branch:
>> > http://people.linaro.org/~shannon.zhao/DomU_ACPI/XEN_EFI.fd
>> > 
>> > This series can be fetched from:
>> > https://git.linaro.org/people/shannon.zhao/xen.git  domu_acpi_v4
>> > 
> Thanks for posting this version and sorry for the late review.
> 
> I've skimmed the whole series and pointed out things I think should be
> improved. I will leave reviewing all the table building code to ARM
> maintainers.
Ok, thanks a lot for your help.

-- 
Shannon


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