[RFC PATCH 0/2] hw: Replace cpu_interrupt() calls by qemu_irq(QDev GPIO)

["Philippe Mathieu-Daudé" <philmd@linaro.org>]

Hi,

cpu_interrupt() doesn't scale well with heterogenous machines
because its mask is target specific (defined in target/ARCH/cpu.h).

While it is (often...) used by target-specific hw to notify cpu,
there is no restriction to use such target-specific hw in a
heterogeneous setup, where it'd still target the same kind of
target cpus.

The Alpha Typhoon HW is unlikely to be used heterogeneously,
but it is the simplest case I found to illustrate how I plan
to remove cpu_interrupt() calls from hw/: use the QDev GPIO API.

Does that sound good enough?

Thanks,

Phil.

Philippe Mathieu-Daudé (2):
  target/alpha: Expose TMR and SMP IRQ lines via QDev
  hw/alpha/typhoon: Set CPU IRQs using QDev API

 hw/alpha/typhoon.c | 15 +++++++++------
 target/alpha/cpu.c | 30 ++++++++++++++++++++++++++++++
 2 files changed, 39 insertions(+), 6 deletions(-)

-- 
2.41.0