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commit 958f79b9ee55dfaf00c8106ed1c22a2919e0028b upstream
set_memory_np() is used to mark kernel mappings not present, but it has
it's own open coded mechanism which does not have the L1TF protection of
inverting the address bits.
Replace the open coded PTE manipulation with the L1TF protecting low level
PTE routines.
Passes the CPA self test.
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
ce1eed46b7