[Qemu-arm] [PATCH v4 0/3] ARM: add query-gic-capabilities SMP command

[Peter Xu]

v4 changes:
- all: rename query-gic-capability to query-gic-capabilities [Andrea]
- patch 3: rename helper function to kvm_support_device, make it
  inline and lighter. [Drew]

v3 changes:
- patch 2: remove func declaration, add qmp header [Drew]
- patch 3: being able to detect KVM GIC capabilities even without
  kvm enabled [Andrea]: this is a little bit hacky, need some more
  review on this.

v2 changes:
- result layout change: use array and dict for the capability bits
  rather than a single array of strings [Andrea/Markus]
- spelling out what GIC is in doc [Eric]

This patch is to add ARM-specific command "query-gic-capability".

The new command can report which kind of GIC device the host/QEMU
support. The returned result is in the form of array.

Sample command and output:

{"execute": "query-gic-capability"}
{"return": [{"emulated": false, "version": 3, "kernel": false},
            {"emulated": true, "version": 2, "kernel": true}]}

Testing:

Smoke tests on both x86 (emulated) and another moonshot ARM server.

Peter Xu (3):
  arm: qmp: add GICCapability struct
  arm: qmp: add query-gic-capabilities interface
  arm: implement query-gic-capabilities

 monitor.c            |  8 +++++
 qapi-schema.json     | 33 ++++++++++++++++++
 qmp-commands.hx      | 26 ++++++++++++++
 scripts/qapi.py      |  1 +
 target-arm/machine.c | 98 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 5 files changed, 166 insertions(+)

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2.4.3