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Add a test case manipulating s390 storage keys from within the ucontrol VM. Storage key instruction (ISKE, SSKE and RRBE) intercepts and Keyless-subset facility are disabled on first use, where the skeys are setup by KVM in non ucontrol VMs. Signed-off-by: Christoph Schlameuss <schlameuss@linux.ibm.com> Link: https://lore.kernel.org/r/20241108091620.289406-1-schlameuss@linux.ibm.com Acked-by: Janosch Frank <frankja@linux.ibm.com> [frankja@linux.ibm.com: Fixed patch prefix] Signed-off-by: Janosch Frank <frankja@linux.ibm.com> Message-ID: <20241108091620.289406-1-schlameuss@linux.ibm.com>