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Storage key controlled protection is currently not honored when emulating instructions. If available, enable key protection for the MEM_OP ioctl, thereby enabling it for the s390_cpu_virt_mem_* functions, when using kvm. As a result, the emulation of the following instructions honors storage keys: * CLP The Synch I/O CLP command would need special handling in order to support storage keys, but is currently not supported. * CHSC Performing commands asynchronously would require special handling, but commands are currently always synchronous. * STSI * TSCH Must (and does) not change channel if terminated due to protection. * MSCH Suppressed on protection, works because fetching instruction. * SSCH Suppressed on protection, works because fetching instruction. * STSCH * STCRW Suppressed on protection, this works because no partial store is possible, because the operand cannot span multiple pages. * PCISTB * MPCIFC * STPCIFC Signed-off-by: Janis Schoetterl-Glausch <scgl@linux.ibm.com> Message-Id: <20220506153956.2217601-3-scgl@linux.ibm.com> Signed-off-by: Thomas Huth <thuth@redhat.com> |
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| m68k | ||
| microblaze | ||
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| nios2 | ||
| openrisc | ||
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| Kconfig | ||
| meson.build | ||