K 10
svn:author
V 8
jhibbits
K 8
svn:date
V 27
2019-05-02T03:39:03.786243Z
K 7
svn:log
V 399
powerpc: Drop OPAL_HANDLE_HMI2 for now, to avoid panicking

It's possible for a Hypervisor Maintenance Interrupt (HMI) to occur while in
the pmap code, holding locks.  This can cause WITNESS to panic due to lock
errors in calling pmap_kextract().  Since we don't yet handle the flags
returned by OPAL_HANDLE_HMI2, just stop using it, so that we don't call into
pmap_kextract().

Reported by:	pkubaj

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