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| author | Dominik Dingel <dingel@linux.vnet.ibm.com> | 2014-01-14 15:02:11 +0100 |
|---|---|---|
| committer | Christian Borntraeger <borntraeger@de.ibm.com> | 2014-04-22 09:36:23 +0200 |
| commit | 65eef33550f68e9a7f7d2dc64da94fb6cb85be2c (patch) | |
| tree | 7a1d6447ee180fcf2f648040ac0b4439dbd908d5 /arch/s390/include/asm/mmu_context.h | |
| parent | 0f689a33ad17845363acdc6d52783befd6ad116c (diff) | |
| download | blackbird-op-linux-65eef33550f68e9a7f7d2dc64da94fb6cb85be2c.tar.gz blackbird-op-linux-65eef33550f68e9a7f7d2dc64da94fb6cb85be2c.zip | |
KVM: s390: Adding skey bit to mmu context
For lazy storage key handling, we need a mechanism to track if the
process ever issued a storage key operation.
This patch adds the basic infrastructure for making the storage
key handling optional, but still leaves it enabled for now by default.
Signed-off-by: Dominik Dingel <dingel@linux.vnet.ibm.com>
Acked-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Diffstat (limited to 'arch/s390/include/asm/mmu_context.h')
| -rw-r--r-- | arch/s390/include/asm/mmu_context.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/s390/include/asm/mmu_context.h b/arch/s390/include/asm/mmu_context.h index 71be346d0e3c..05925ead0748 100644 --- a/arch/s390/include/asm/mmu_context.h +++ b/arch/s390/include/asm/mmu_context.h @@ -23,6 +23,7 @@ static inline int init_new_context(struct task_struct *tsk, mm->context.asce_bits |= _ASCE_TYPE_REGION3; #endif mm->context.has_pgste = 0; + mm->context.use_skey = 1; mm->context.asce_limit = STACK_TOP_MAX; crst_table_init((unsigned long *) mm->pgd, pgd_entry_type(mm)); return 0; |
