[PATCH 0/2] KVM: x86: Revert to fix apic_hw_disabled underflow

[Sean Christopherson]

Revert (mostly) a patch from the vCPU RESET cleanup that open coded some
APIC shenanigans to avoid stuffing vcpu->arch.apic_base at vCPU creation,
and completely overlooked the side effects on apic_hw_disabled.  I went
for a revert as I think the original behavior is the least awful solution,
just somewhat poorly documented.

The second patch adds WARNs to detect "overflow", where "overflow" means
KVM incorrectly increments apic_hw_disabled.

Sean Christopherson (2):
  Revert "KVM: x86: Open code necessary bits of kvm_lapic_set_base() at
    vCPU RESET"
  KVM: x86: WARN if APIC HW/SW disable static keys are non-zero on
    unload

 arch/x86/kvm/lapic.c | 20 +++++++++++++-------
 1 file changed, 13 insertions(+), 7 deletions(-)

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2.33.0.1079.g6e70778dc9-goog