xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

KVM: s390: implement KVM_REQ_TLB_FLUSH and make use of it

Browse Source 
Use the KVM_REQ_TLB_FLUSH request in order to trigger tlb flushes instead
of manipulating the SIE control block whenever we need it. Also trigger it for
a control register sync directly instead of (ab)using kvm_s390_set_prefix().

Signed-off-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
This commit is contained in:
David Hildenbrand
2014-07-29 08:53:36 +02:00
committed by Christian Borntraeger
parent b028ee3edd
commit d3d692c82e
2 changed files with 9 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
arch/s390/kvm/kvm-s390.h
View File

@@ -70,7 +70,7 @@ static inline u32 kvm_s390_get_prefix(struct kvm_vcpu *vcpu)
static inline void kvm_s390_set_prefix(struct kvm_vcpu *vcpu, u32 prefix)
{
vcpu->arch.sie_block->prefix = prefix >> GUEST_PREFIX_SHIFT;
vcpu->arch.sie_block->ihcpu = 0xffff;
kvm_make_request(KVM_REQ_TLB_FLUSH, vcpu);
kvm_make_request(KVM_REQ_MMU_RELOAD, vcpu);
}