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

Issues to be addressed in additional commits or a new patch series:
- 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.

v1->v2:
Oops. I did a mistake when preparing my patches.

- Add hvf_arm_el2_enable(_) call to virt_set_virt
- Fix nested virt support check to add HVF

v2->v3:
- LORC_EL1 patch was merged separately, remove from this series.
- fix LPIs when kernel-irqchip disabled and using TCG
- remove spurious if case in vGIC supported version detection (inapplicable now)
- Add hvf_enabled() check in combination with hvf kernel-irqchip checks
- cleanly fail on attempt to use the platform vGIC together with ITS

Mohamed Mediouni (9):
  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
  hw/arm: virt: cleanly fail on attempt to use the platform vGIC
    together with ITS

 accel/hvf/hvf-all.c        |  44 +++
 accel/stubs/hvf-stub.c     |   1 +
 hw/arm/virt-acpi-build.c   |   4 +-
 hw/arm/virt.c              |  43 ++-
 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       |  86 +++++
 target/arm/hvf_arm.h       |   3 +
 13 files changed, 822 insertions(+), 9 deletions(-)
 create mode 100644 hw/intc/arm_gicv3_hvf.c

-- 
2.39.5 (Apple Git-154)


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