[PATCH 0/9] HVF: Add support for platform vGIC and nested virtualisation

[Mohamed Mediouni <mohamed@unpredictable.fr>]

Early series.

Known issues:
- when nested virt is enabled, no UI response within EDK2
and a permanent wait. Workaround: -boot menu=on,splash-time=0
- Save/restore of GIC state isn't complete yet.
- Save/restore of HVF state when EL2 is enabled isn't complete yet.
- This series doesn't contain EL2 physical timer emulation, which is
needed if not leveraging the Apple vGIC.

However, this is usable and there seems to be some interest for it. Hopefully
it'll be at least somewhat useful.

PS: I can step up to maintain HVF support if needed. WHPX arm64 patch series
is coming soon too.

Mohamed Mediouni (9):
  target/arm: hvf: stubbing writes to LORC_EL1
  accel, hw/arm, include/system/hvf: plumbing changes for HVF vGIC
  target/arm: hvf: instantiate GIC early
  target/arm: add asserts for code paths not leveraged when using the
    vGIC
  hw/intc: Add hvf vGIC interrupt controller support
  hw/arm, target/arm: nested virtualisation on HVF
  target/arm: hvf: pass through CNTHCTL_EL2 and MDCCINT_EL1
  hw/arm: virt: add GICv2m for the case when ITS is not available
  target/arm: hvf: use LOG_UNIMP for CNTP_CVAL_EL0/SYSREG_CNTP_CTL_EL0

 accel/hvf/hvf-all.c        |  44 +++
 accel/stubs/hvf-stub.c     |   1 +
 hw/arm/virt-acpi-build.c   |   4 +-
 hw/arm/virt.c              |  31 +-
 hw/intc/arm_gicv3_common.c |   3 +
 hw/intc/arm_gicv3_hvf.c    | 624 +++++++++++++++++++++++++++++++++++++
 hw/intc/meson.build        |   1 +
 include/hw/arm/virt.h      |   2 +
 include/system/hvf.h       |   3 +
 system/vl.c                |   2 +
 target/arm/hvf-stub.c      |  15 +
 target/arm/hvf/hvf.c       |  91 ++++++
 target/arm/hvf_arm.h       |   3 +
 13 files changed, 814 insertions(+), 10 deletions(-)
 create mode 100644 hw/intc/arm_gicv3_hvf.c

-- 
2.39.5 (Apple Git-154)