[Xen-devel] [PATCH v2 00/17] Xen ARM DomU ACPI support

[Shannon Zhao <zhaoshenglong@xxxxxxxxxx>]

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:
https://git.kernel.org/cgit/linux/kernel/git/mfleming/efi.git/log/?h=efi/arm-xen

The UEFI binary could be fetched from:
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_v2

Changes since v1:
* move ACPI tables generation codes to a new file
* use static asl file to generate DSDT table and include processor
  device objects
* assign a non-RAM map for ACPI blob
* use existing ACPI table definitions under xen/include/acpi/
* add a configuration for user to enable/disable ACPI generation
* calculate the ACPI table checksum

Shannon Zhao (17):
  libxl/arm: Factor out codes for generating DTB
  libxc: Add placeholders for ACPI tables blob and size
  libxl/arm: Add a configuration option for ARM DomU ACPI
  libxl/arm: prepare for constructing ACPI tables
  libxl/arm: Construct ACPI RSDP table
  libxl/arm: Construct ACPI XSDT table
  libxl/arm: Construct ACPI GTDT table
  libxl/arm: Factor MPIDR computing codes out as a helper
  libxl/arm: Construct ACPI MADT table
  libxl/arm: Construct ACPI FADT table
  libxl/arm: Construct ACPI DSDT table
  libxl/arm: Add a helper to calculate the ACPI table checksum
  libxl/arm: Link all ACPI tables into one buffer
  libxl/arm: Factor finalise_one_memory_node as a gerneric function
  libxl/arm: Add ACPI module
  libxc/xc_dom_arm: Copy ACPI tables to guest space
  libxl/arm: Initialize domain param HVM_PARAM_CALLBACK_IRQ

 docs/misc/arm/device-tree/acpi.txt   |  23 +++
 tools/libxc/include/xc_dom.h         |   2 +
 tools/libxc/xc_dom_arm.c             |  51 +++++
 tools/libxl/Makefile                 |  26 +++
 tools/libxl/libxl_arm.c              |  78 +++++--
 tools/libxl/libxl_arm_acpi.c         | 391 +++++++++++++++++++++++++++++++++++
 tools/libxl/libxl_arm_acpi.h         |  46 +++++
 tools/libxl/libxl_empty_dsdt_arm.asl |  22 ++
 tools/libxl/libxl_mk_dsdt_arm.c      |  94 +++++++++
 tools/libxl/libxl_types.idl          |   1 +
 tools/libxl/xl_cmdimpl.c             |   4 +
 xen/include/public/arch-arm.h        |   5 +
 12 files changed, 726 insertions(+), 17 deletions(-)
 create mode 100644 docs/misc/arm/device-tree/acpi.txt
 create mode 100644 tools/libxl/libxl_arm_acpi.c
 create mode 100644 tools/libxl/libxl_arm_acpi.h
 create mode 100644 tools/libxl/libxl_empty_dsdt_arm.asl
 create mode 100644 tools/libxl/libxl_mk_dsdt_arm.c

-- 
2.0.4



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