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[Qemu-devel] [PATCH v7 00/23] Generate ACPI v5.1 tables and expose them

From: Shannon Zhao
Subject: [Qemu-devel] [PATCH v7 00/23] Generate ACPI v5.1 tables and expose them to guest over fw_cfg on ARM
Date: Thu, 14 May 2015 17:19:19 +0800

From: Shannon Zhao <address@hidden>

This patch series generate seven ACPI tables for machine virt on ARM.
The set of generated tables are:
- MCFG (For PCIe host bridge)

These tables are created dynamically using the function of aml-build.c,
taking into account the needed information passed from the virt machine
model. When the generation is finalized, it use fw_cfg to expose the
tables to guest.

You can fetch this from following repo:
        http://git.linaro.org/people/shannon.zhao/qemu.git  ACPI_ARM_v7

And this patchset refers to Alexander Spyridakis's patches which are
sent to qemu-devel mailing list before.

Thanks to Laszlo's work on UEFI (ArmVirtualizationQemu) supporting
downloading ACPI tables over fw_cfg, we now can use ACPI in VM.

Now upstream kernel applies ACPI patchset, so we can boot it with ACPI,
while we need to apply patches[1] to make tty work, patch[2] to make
virtio-mmio work and apply patch[3] and the relevant patches to make PCI
devices works, e.g. virtio-net-pci, e1000.
On the other hand, you can directly use the Fedora Linux kernel from
following address:

I've done test with following VM:
xp, windows2008, sles11 on X86
upstream kernel and Fedora Linux kernel on ARM64

In addtion, dump all the acpi tables, use iasl -d *.dat to convert to
*.asl and use iasl -tc *.asl to compile them to *.hex. No error appears.

If you want to test, you could get kernel Image from [4] which contains
uart, virtio-mmio, pci ACPI drivers, UEFI binary from [5] and Qemu
command line example from [6].

[1] http://git.linaro.org/leg/acpi/acpi.git/shortlog/refs/heads/acpi-sbsa
[4] http://people.linaro.org/~shannon.zhao/ACPI_ARM/Image.gz
[5] http://people.linaro.org/~shannon.zhao/ACPI_ARM/QEMU_EFI.fd
[6] http://people.linaro.org/~shannon.zhao/ACPI_ARM/acpi_test.sh

changes since v6:
  * add build_append_uint32 (Peter)
  * drop some unnecessary headers and adjust the order of headers (Peter)
  * drop struct AcpiDsdtInfo, AcpiMadtInfo, AcpiGtdtInfo, AcpiPcieInfo
    and reuse MemMapEntry[] and irqmap[] (Peter)
  * record PCI ranges info in MemMapEntry[], not calculate those (Peter)
  * add a separate patch for splitting CONFIG_ACPI (Peter)
  * use VMSTATE_BOOL (Alex)

changes since v5:
  * Fix table version (Igor)
  * only create CPU device objects for present CPUs (Igor)
  * drop madt->local_apic_address and madt->flags (Igor)
  * adjust implementation of ToUUID macro (Igor)
  * Fix aml_buffer() (Michael & Igor)
  * Fix aml_not()

changes since v4:
  * use trace_* instead of DPRINTF (Igor & Alex)
  * use standard QEMU style for structs (Michael)
  * add "-no-acpi" option support for arm
  * use extractNN for bits operation (Alex)
  * use AmlReadAndWrite enum for rw flags (Igor)
  * s/uint64_t/uint32_t/ (Igor)
  * use enum for interrupt flag (Igor)
  * simplify aml_device use in DSDT (Alex)
  * share RSDT table generating code with x86 (Igor)
  * remove unnecessary 1 in MCFG table generating code (Alex & Peter)
  * use string for ToUUID macro (Igor)
  * aml_or and aml_and use two args (Igor)
  * add comments on UUID (Michael)
  * change PCI MMIO region non-cacheable (Peter)
  * fix wrong io map (Peter)
  * add several reviewed-by's from Alex, thanks

changes since v3:
  * rebase on upstream qemu
  * fix _HID of CPU (Heyi Guo)
  * Add PCIe host bridge

changes since v2:
  * rebase on Igor Mammedov's new branch ASL_API_v3
  * use rsdt instead of xsdt according to Igor Mammedov's suggestion

changes since v1:
  * fix bug found by Laszlo
  * move common helpers into dedictated file and change generating
    table order according to Igor's comments
  * fix copyright and function name according to Michael's comments

Shannon Zhao (23):
  hw/arm/virt: Move common definitions to virt.h
  hw/arm/virt: Record PCIe ranges in MemMapEntry array
  hw/arm/virt-acpi-build: Basic framework for building ACPI tables on
  hw/acpi/aml-build: Add aml_memory32_fixed() term
  hw/acpi/aml-build: Add aml_interrupt() term
  hw/arm/virt-acpi-build: Generation of DSDT table for virt devices
  hw/arm/virt-acpi-build: Generate FADT table and update ACPI headers
  hw/arm/virt-acpi-build: Generate MADT table
  hw/arm/virt-acpi-build: Generate GTDT table
  hw/arm/virt-acpi-build: Generate RSDT table
  hw/arm/virt-acpi-build: Generate RSDP table
  hw/arm/virt-acpi-build: Generate MCFG table
  hw/acpi/aml-build: Make aml_buffer() definition consistent with the
  hw/acpi/aml-build: Add ToUUID macro
  hw/acpi/aml-build: Add aml_or() term
  hw/acpi/aml-build: Add aml_lnot() term
  hw/acpi/aml-build: Add aml_else() term
  hw/acpi/aml-build: Add aml_create_dword_field() term
  hw/acpi/aml-build: Add aml_dword_io() term
  hw/acpi/aml-build: Add Unicode macro
  hw/arm/virt-acpi-build: Add PCIe controller in ACPI DSDT table
  ACPI: split CONFIG_ACPI into 4 pieces
  hw/arm/virt: Enable dynamic generation of ACPI v5.1 tables

 default-configs/arm-softmmu.mak      |   1 +
 default-configs/i386-softmmu.mak     |   3 +
 default-configs/mips-softmmu.mak     |   3 +
 default-configs/mips64-softmmu.mak   |   3 +
 default-configs/mips64el-softmmu.mak |   3 +
 default-configs/mipsel-softmmu.mak   |   3 +
 default-configs/x86_64-softmmu.mak   |   3 +
 hw/acpi/Makefile.objs                |   5 +-
 hw/acpi/aml-build.c                  | 205 ++++++++++-
 hw/arm/Makefile.objs                 |   1 +
 hw/arm/virt-acpi-build.c             | 643 +++++++++++++++++++++++++++++++++++
 hw/arm/virt.c                        |  85 ++---
 hw/i2c/Makefile.objs                 |   2 +-
 hw/i386/acpi-build.c                 |  24 --
 include/hw/acpi/acpi-defs.h          | 210 +++++++++---
 include/hw/acpi/aml-build.h          |  67 +++-
 include/hw/arm/virt-acpi-build.h     |  44 +++
 include/hw/arm/virt.h                |  64 ++++
 qemu-options.hx                      |   2 +-
 trace-events                         |   3 +
 20 files changed, 1258 insertions(+), 116 deletions(-)
 create mode 100644 hw/arm/virt-acpi-build.c
 create mode 100644 include/hw/arm/virt-acpi-build.h
 create mode 100644 include/hw/arm/virt.h


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