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| author | Janosch Frank <frankja@linux.vnet.ibm.com> | 2018-02-16 12:16:14 +0100 |
|---|---|---|
| committer | Christian Borntraeger <borntraeger@de.ibm.com> | 2018-03-09 09:44:17 +0000 |
| commit | c9f0a2b87f9e95197c2f81920a82bcef6ad3db99 (patch) | |
| tree | 53b2b9c906ee4b0e607cdb4aef867c114127351e /arch/s390/kvm/priv.c | |
| parent | c3b9e3e1ea1c1d1524b56b6734711db2a6fc2163 (diff) | |
| download | op-kernel-dev-c9f0a2b87f9e95197c2f81920a82bcef6ad3db99.zip op-kernel-dev-c9f0a2b87f9e95197c2f81920a82bcef6ad3db99.tar.gz | |
KVM: s390: Refactor host cmma and pfmfi interpretation controls
use_cmma in kvm_arch means that the KVM hypervisor is allowed to use
cmma, whereas use_cmma in the mm context means cmm has been used before.
Let's rename the context one to uses_cmm, as the vm does use
collaborative memory management but the host uses the cmm assist
(interpretation facility).
Also let's introduce use_pfmfi, so we can remove the pfmfi disablement
when we activate cmma and rather not activate it in the first place.
Signed-off-by: Janosch Frank <frankja@linux.vnet.ibm.com>
Message-Id: <1518779775-256056-2-git-send-email-frankja@linux.vnet.ibm.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Diffstat (limited to 'arch/s390/kvm/priv.c')
| -rw-r--r-- | arch/s390/kvm/priv.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/s390/kvm/priv.c b/arch/s390/kvm/priv.c index f0b4185..ebfa044 100644 --- a/arch/s390/kvm/priv.c +++ b/arch/s390/kvm/priv.c @@ -1078,9 +1078,9 @@ static int handle_essa(struct kvm_vcpu *vcpu) * value really needs to be written to; if the value is * already correct, we do nothing and avoid the lock. */ - if (vcpu->kvm->mm->context.use_cmma == 0) { + if (vcpu->kvm->mm->context.uses_cmm == 0) { down_write(&vcpu->kvm->mm->mmap_sem); - vcpu->kvm->mm->context.use_cmma = 1; + vcpu->kvm->mm->context.uses_cmm = 1; up_write(&vcpu->kvm->mm->mmap_sem); } /* |
