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SMI trigger causes hang with multiple cores
When using qemu , SMI trigger causes hand/reboot under following conditions:
1. No KVM but there are more than 1 threads (-smp > 1)
2. When using KVM.
Info:
qemu-system-x86_64 --version
QEMU emulator version 2.11.1(Debian 1:2.11+dfsg-1ubuntu7.29)
Copyright (c) 2003-2017 Fabrice Bellard and the QEMU Project developers
SMI trigger was done by writing 0x00 in IO port 0xB2.
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