*** This bug is a security vulnerability ***
Private security bug reported:
In order to address variant 3 on IBM POWER systems we must flush
the L1D cache on return from exceptions into userspace. We do this
by leveraging conveniently newly added nop space instructions that
have the effect of
You have been subscribed to a public bug:
In order to address variant 3 on IBM POWER systems we must flush
the L1D cache on return from exceptions into userspace. We do this
by leveraging conveniently newly added nop space instructions that
have the effect of guaranteeing a given kernel VA is not
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