[Qemu-devel] [PATCH v7 0/6] vGICv3 support

[Pavel Fedin <p.fedin@samsung.com>]

This series introduces support for GICv3 by KVM. Software emulation is
currently not supported.

Differences from v6:
- Wrap own GIC type definitions on top of KVM ones. Fixed build on
  non-ARM-Linux hosts

Differences from v5:
- Fixed various checkpatch.pl style warnings
- Removed TODO in gicv3_init_irqs_and_mmio(), relevant memory API patch
  included
- gicv3_init_irqs_and_mmio() now takes 3 arguments instead of 4. It is more
  convenient to pass MMIO descriptors as array

Differences from v4:
- Do not reintroduce several constants shared with GICv2, reuse them instead.
- Added gicv3_init_irqs_and_mmio() in base class, to be used by both software
  emulation and KVM code. Avoids code duplication.
- Do not add NULL msi-parent phandle to PCI device in the FDT
- Removed a couple of stale things from virt.c

Differences from v3:
- Fixed stupid build breakage in patch 0002
- Rebased on top of current master, patch 0003 adjusted according to
  kvm_irqchip_create() changes
- Added assertion against uninitialized kernel_irqchip_type
- Removed kernel_irqchip_type initialization from models which do not
  use KVM vGIC

Differences from v2:
- Removed some unrelated and unnecessary changes from virt machine,
  occasionally slipped in; some of them caused qemu to crash on ARM32.
- Fixed build for ARM32; vGICv3 code requires definitions which are
  present only in ARM64 kernel

Differences from v1:
- Base class included, taken from the series by Shlomo Pongratz:
  http://lists.nongnu.org/archive/html/qemu-devel/2015-06/msg01512.html
  The code is refactored as little as possible in order to simplify
  further addition of software emulation:
  - Minor fixes in code style and comments, according to old reviews
  - Removed REV_V3 definition because it's currently not used, and it does
    not add any meaning to number 3.
  - Removed reserved regions for MBI and ITS (except for 'virt' machine
    memory map). These should go to separate classes when implemented.
- Improved commit messages
- vGIC patches restructured
- Use 'gicversion' option instead of virt-v3 machine

Pavel Fedin (5):
  Merge memory_region_init_reservation() into memory_region_init_io()
  Extract some reusable vGIC code
  Introduce irqchip type specification for KVM
  Initial implementation of vGICv3
  Add gicversion option to virt machine

Shlomo Pongratz (1):
  Implement GIC-500 base class

 hw/arm/vexpress.c                  |   1 +
 hw/arm/virt.c                      | 140 +++++++++++++++++----
 hw/intc/Makefile.objs              |   4 +
 hw/intc/arm_gic_kvm.c              |  84 ++++++-------
 hw/intc/arm_gicv3_common.c         | 249 +++++++++++++++++++++++++++++++++++++
 hw/intc/arm_gicv3_kvm.c            | 155 +++++++++++++++++++++++
 hw/intc/gicv3_internal.h           | 156 +++++++++++++++++++++++
 hw/intc/vgic_common.h              |  43 +++++++
 include/exec/memory.h              |  14 ++-
 include/hw/arm/fdt.h               |   2 +-
 include/hw/arm/virt.h              |   6 +-
 include/hw/boards.h                |   1 +
 include/hw/intc/arm_gicv3_common.h | 112 +++++++++++++++++
 include/sysemu/kvm.h               |   3 +-
 kvm-all.c                          |   2 +-
 memory.c                           |  10 +-
 stubs/kvm.c                        |   2 +-
 target-arm/kvm-consts.h            |   6 +
 target-arm/kvm.c                   |  13 +-
 19 files changed, 917 insertions(+), 86 deletions(-)
 create mode 100644 hw/intc/arm_gicv3_common.c
 create mode 100644 hw/intc/arm_gicv3_kvm.c
 create mode 100644 hw/intc/gicv3_internal.h
 create mode 100644 hw/intc/vgic_common.h
 create mode 100644 include/hw/intc/arm_gicv3_common.h

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