[libvirt] [PATCH 4/7] qemu: Add monitor APIs to fetch CPUID data from QEMU

[Jiri Denemark]

On Tue, Jul 23, 2013 at 17:32:42 +0100, Daniel Berrange wrote:
> On Tue, Jul 23, 2013 at 06:11:33PM +0200, Jiri Denemark wrote:
> > ---
> >  src/qemu/qemu_monitor.c                            |  21 +++
> >  src/qemu/qemu_monitor.h                            |   3 +
> >  src/qemu/qemu_monitor_json.c                       | 162 +++++++++++++++++++++
> >  src/qemu/qemu_monitor_json.h                       |   6 +
> >  tests/Makefile.am                                  |   1 +
> >  .../qemumonitorjson-getcpu-empty.data              |   2 +
> >  .../qemumonitorjson-getcpu-empty.json              |  46 ++++++
> >  .../qemumonitorjson-getcpu-filtered.data           |   4 +
> >  .../qemumonitorjson-getcpu-filtered.json           |  46 ++++++
> >  .../qemumonitorjson-getcpu-full.data               |   4 +
> >  .../qemumonitorjson-getcpu-full.json               |  46 ++++++
> >  .../qemumonitorjson-getcpu-host.data               |   5 +
> >  .../qemumonitorjson-getcpu-host.json               |  45 ++++++
> >  tests/qemumonitorjsontest.c                        |  74 ++++++++++
> >  14 files changed, 465 insertions(+)
> >  create mode 100644 tests/qemumonitorjsondata/qemumonitorjson-getcpu-empty.data
> >  create mode 100644 tests/qemumonitorjsondata/qemumonitorjson-getcpu-empty.json
> >  create mode 100644 tests/qemumonitorjsondata/qemumonitorjson-getcpu-filtered.data
> >  create mode 100644 tests/qemumonitorjsondata/qemumonitorjson-getcpu-filtered.json
> >  create mode 100644 tests/qemumonitorjsondata/qemumonitorjson-getcpu-full.data
> >  create mode 100644 tests/qemumonitorjsondata/qemumonitorjson-getcpu-full.json
> >  create mode 100644 tests/qemumonitorjsondata/qemumonitorjson-getcpu-host.data
> >  create mode 100644 tests/qemumonitorjsondata/qemumonitorjson-getcpu-host.json
> 
> ACK, though I believe the design of this monitor API is flawed
> because it requires you to re-launch QEMU with different accel
> args

Not really, this can be used in tcg too. It's just when we want to get
the data for "host" CPU, we need to enable kvm as tcg knows nothing
about that CPU. Which makes sense as kvm (the kernel module) influences
how the "host" CPU will look like.

Jirka