[Qemu-devel] [PATCH v3 for-2.9 0/3] q35: add negotiable broadcast SMI

[Laszlo Ersek <lersek@redhat.com>]

This is v3 of the series, with updates based on the v2 discussion:
<http://lists.nongnu.org/archive/html/qemu-devel/2016-11/msg02687.html>.

I've added feature negotiation via the APM_STS ("scratchpad") register.
A new spec file called "docs/specs/q35-apm-sts.txt" is included.

Tested with new OVMF patches (about to send out those as well).
Regression tested with SeaBIOS (beyond simple functional tests with
maximum SeaBIOS logging enabled, I used gdb to step through the new
ich9_apm_status_changed() callback to see if it was behaving compatibly
with SeaBIOS).

The series was developed and tested on top of v2.7.0, because v2.8.0-rc0
crashes very quickly for me when running OVMF:

  kvm_io_ioeventfd_add: error adding ioeventfd: File exists

It is my understanding that there are patches on the list for this:

  [Qemu-devel] [PATCH v2 for-2.8 0/3] virtio fixes

Anyway, the series rebases to v2.8.0-rc0 without as much as context
differences.

Cc: "Kevin O'Connor" <kevin@koconnor.net>
Cc: "Michael S. Tsirkin" <mst@redhat.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>

Thanks
Laszlo

Laszlo Ersek (3):
  hw/isa/apm: introduce callback for APM_STS_IOPORT writes
  hw/isa/lpc_ich9: add SMI feature negotiation via APM_STS
  hw/isa/lpc_ich9: ICH9_APM_STS_F_BROADCAST_SMI: inject SMI on all VCPUs

 docs/specs/q35-apm-sts.txt | 80 ++++++++++++++++++++++++++++++++++++++++++++++
 include/hw/i386/ich9.h     |  9 ++++++
 include/hw/isa/apm.h       |  9 +++---
 hw/acpi/piix4.c            |  2 +-
 hw/isa/apm.c               | 15 ++++++---
 hw/isa/lpc_ich9.c          | 64 +++++++++++++++++++++++++++++++++++--
 hw/isa/vt82c686.c          |  2 +-
 7 files changed, 168 insertions(+), 13 deletions(-)
 create mode 100644 docs/specs/q35-apm-sts.txt

-- 
2.9.2