[Bug 215964] nVMX: KVM(L0) does not perform a platform reboot when guest(L2) trigger a reboot event through IO-Port-0xCF9

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https://bugzilla.kernel.org/show_bug.cgi?id=215964

--- Comment #3 from Sean Christopherson (seanjc@xxxxxxxxxx) ---
Hmm, QEMU is clearing clearing "guest mode" to get the vCPU back into L1 at
RESET, and IIRC QEMU will do KVM_SET_NESTED_STATE as part of its RESET
emulation.

My question about the 0xcf9 write still stands.  Does the OUT get sent to QEMU
and then something goes awry during RESET emulation?  Or is the OUT forwarded
to L1 as a nested VM-Exit?

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