tree 335bbe1aa81071f50d05c9af247abad44fad72c0
parent c75efa974e013640496620f26f0b532cb5cb17f9
author Radim Krčmář <rkrcmar@redhat.com> 1446216500 +0100
committer Paolo Bonzini <pbonzini@redhat.com> 1446650674 +0100

KVM: x86: zero apic_arb_prio on reset

BSP doesn't get INIT so its apic_arb_prio isn't zeroed after reboot.
BSP won't get lowest priority interrupts until other VCPUs get enough
interrupts to match their pre-reboot apic_arb_prio.

That behavior doesn't fit into KVM's round-robin-like interpretation of
lowest priority delivery ... userspace should KVM_SET_LAPIC on reset, so
just zero apic_arb_prio there.

Reported-by: Yuki Shibuya <shibuya.yk@ncos.nec.co.jp>
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>