On Thu, 2023-03-30 at 16:50 +1100, Benjamin Gray wrote: > The ISA 3.1B hashst and hashchk instructions use a per-cpu SPR > HASHKEYR > to hold a key used in the hash calculation. This key should be > different > for each process to make it harder for a malicious process to > recreate > valid hash values for a victim process. > > Add support for storing a per-thread hash key, and setting/clearing > HASHKEYR appropriately. > > Signed-off-by: Benjamin Gray <bg...@linux.ibm.com>
Reviewed-by: Russell Currey <rus...@russell.cc>
