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/openbmc/qemu/target/s390x/
H A Dmmu_helper.cdiff 3a06f981925bfade8f5e650655fce0b38dbd6649 Sun Jan 14 17:29:22 CST 2018 David Hildenbrand <david@redhat.com> s390x/mmu: Implement Instruction-Execution-Protection Facility

IEP support in the mmu is fairly easy. Set the right permissions for TLB
entries and properly report an exception.

Make sure to handle EDAT-2 by setting bit 56/60/61 of the TEID (TEC) to
the right values.

Let's keep s390_cpu_get_phys_page_debug() working even if IEP is
active. Switch MMU_DATA_LOAD - this has no other effects any more as the
ASC to be used is now fully selected outside of mmu_translate().

Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: David Hildenbrand <david@redhat.com>
H A Dhelper.cdiff 3a06f981925bfade8f5e650655fce0b38dbd6649 Sun Jan 14 17:29:22 CST 2018 David Hildenbrand <david@redhat.com> s390x/mmu: Implement Instruction-Execution-Protection Facility

IEP support in the mmu is fairly easy. Set the right permissions for TLB
entries and properly report an exception.

Make sure to handle EDAT-2 by setting bit 56/60/61 of the TEID (TEC) to
the right values.

Let's keep s390_cpu_get_phys_page_debug() working even if IEP is
active. Switch MMU_DATA_LOAD - this has no other effects any more as the
ASC to be used is now fully selected outside of mmu_translate().

Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: David Hildenbrand <david@redhat.com>
H A Dcpu.hdiff 3a06f981925bfade8f5e650655fce0b38dbd6649 Sun Jan 14 17:29:22 CST 2018 David Hildenbrand <david@redhat.com> s390x/mmu: Implement Instruction-Execution-Protection Facility

IEP support in the mmu is fairly easy. Set the right permissions for TLB
entries and properly report an exception.

Make sure to handle EDAT-2 by setting bit 56/60/61 of the TEID (TEC) to
the right values.

Let's keep s390_cpu_get_phys_page_debug() working even if IEP is
active. Switch MMU_DATA_LOAD - this has no other effects any more as the
ASC to be used is now fully selected outside of mmu_translate().

Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: David Hildenbrand <david@redhat.com>