[PATCH v6 0/4] Make the mc146818 RTC device target independent

[Thomas Huth <thuth@redhat.com>]

The basic idea of this patch set is to change hw/rtc/mc146818rtc.c into
target independent code so that the file only has to be compiled once
instead of multiple times (and that it can be used in a qemu-system-all
binary once we get there).

The first patch extracts some functions from the APIC code that will be
required for linking when the mc146818rtc becomes target-independent.

The second patch adds a new way for checking whether the "driftfix=slew"
policy is available or not (since the corresponding #ifdefs in the
mc146818rtc code will be removed).

The third patch then removes the "#ifdef TARGET" switches and turns
the mc146818rtc code into a target-independent file.

The fourth patch just fixes a small cosmetic nit that I discovered along
the way: On systems without mc146818, the "-rtc driftfix=slew" simply
got ignored silently. We should at least emit a warning in this case.

Changes since last iteration:
- Dropped the approach of using a new "slew-tick-policy-available"
  property that needs to be set by the machine code (and thus dropped
  the clean-up patches from Bernhard from this series since they are
  no longer required here now)
- Use a new check in hw/core/qdev-properties-system.c instead
  (see the second patch)

Thomas Huth (4):
  hw/intc: Extract the IRQ counting functions into a separate file
  hw/core/qdev-properties-system: Allow the 'slew' policy only on x86
  hw/rtc/mc146818rtc: Make the mc146818 RTC device target independent
  softmmu/rtc: Emit warning when using driftfix=slew on systems without
    mc146818

 include/hw/i386/apic.h           |  2 --
 include/hw/i386/apic_internal.h  |  1 -
 include/hw/intc/kvm_irqcount.h   | 10 +++++++
 include/hw/rtc/mc146818rtc.h     |  1 +
 hw/core/qdev-properties-system.c | 28 +++++++++++++++++-
 hw/i386/kvm/i8259.c              |  4 +--
 hw/i386/kvm/ioapic.c             |  4 +--
 hw/intc/apic.c                   |  3 +-
 hw/intc/apic_common.c            | 30 ++-----------------
 hw/intc/kvm_irqcount.c           | 49 ++++++++++++++++++++++++++++++++
 hw/rtc/mc146818rtc.c             | 20 ++-----------
 softmmu/rtc.c                    |  6 +++-
 hw/intc/meson.build              |  6 ++++
 hw/intc/trace-events             |  9 +++---
 hw/rtc/meson.build               |  3 +-
 15 files changed, 115 insertions(+), 61 deletions(-)
 create mode 100644 include/hw/intc/kvm_irqcount.h
 create mode 100644 hw/intc/kvm_irqcount.c

-- 
2.31.1