KVM: nVMX: Support direct APIC access from L2

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It's a pathological case, but still a valid one: If L1 disables APIC
virtualization and also allows L2 to directly write to the APIC page, we
have to forcibly enable APIC virtualization while in L2 if the in-kernel
APIC is in use.

This allows to run the direct interrupt test case in the vmx unit test
without x2APIC.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

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Jan Kiszka 2013-12-16 12:55:46 +01:00 • committed by Paolo Bonzini

parent 9357d93952

commit ca3f257ae5

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arch/x86/kvm/vmx.c

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