KVM: x86: Check irqchip mode before create PIT

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As the kvm api(https://docs.kernel.org/virt/kvm/api.html) reads,
KVM_CREATE_PIT2 call is only valid after enabling in-kernel irqchip
support via KVM_CREATE_IRQCHIP.

Without this check, I can create PIT first and enable irqchip-split
then, which may cause the PIT invalid because of lacking of in-kernel
PIC to inject the interrupt.

Signed-off-by: Tengfei Yu <moehanabichan@gmail.com>
Message-Id: <20240125050823.4893-1-moehanabichan@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

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Tengfei Yu 2024-01-25 13:08:23 +08:00 • committed by Paolo Bonzini

parent 11f5633209

commit 9e05d9b067

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arch/x86/kvm/x86.c

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