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| author | Michael Mueller <mimu@linux.vnet.ibm.com> | 2014-05-13 16:58:30 +0200 |
|---|---|---|
| committer | Christian Borntraeger <borntraeger@de.ibm.com> | 2014-05-16 14:57:31 +0200 |
| commit | fda902cb8347da121025c4079b9e87748228a27e (patch) | |
| tree | b5cbcce14afbe2da194e4b3cb8f1594cea800fb5 /arch/s390/kvm/gaccess.h | |
| parent | s390/sclp: add sclp_get_ibc function (diff) | |
| download | linux-fda902cb8347da121025c4079b9e87748228a27e.tar.xz linux-fda902cb8347da121025c4079b9e87748228a27e.zip | |
KVM: s390: split SIE state guest prefix field
This patch splits the SIE state guest prefix at offset 4
into a prefix bit field. Additionally it provides the
access functions:
- kvm_s390_get_prefix()
- kvm_s390_set_prefix()
to access the prefix per vcpu.
Signed-off-by: Michael Mueller <mimu@linux.vnet.ibm.com>
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>
Diffstat (limited to 'arch/s390/kvm/gaccess.h')
| -rw-r--r-- | arch/s390/kvm/gaccess.h | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/arch/s390/kvm/gaccess.h b/arch/s390/kvm/gaccess.h index 68db43e4254f..a07ee08ac478 100644 --- a/arch/s390/kvm/gaccess.h +++ b/arch/s390/kvm/gaccess.h @@ -30,7 +30,7 @@ static inline unsigned long kvm_s390_real_to_abs(struct kvm_vcpu *vcpu, unsigned long gra) { - unsigned long prefix = vcpu->arch.sie_block->prefix; + unsigned long prefix = kvm_s390_get_prefix(vcpu); if (gra < 2 * PAGE_SIZE) gra += prefix; @@ -99,7 +99,7 @@ static inline unsigned long kvm_s390_logical_to_effective(struct kvm_vcpu *vcpu, unsigned long __gpa; \ \ __gpa = (unsigned long)(gra); \ - __gpa += __vcpu->arch.sie_block->prefix; \ + __gpa += kvm_s390_get_prefix(__vcpu); \ kvm_write_guest(__vcpu->kvm, __gpa, &__x, sizeof(__x)); \ }) @@ -124,7 +124,7 @@ static inline __must_check int write_guest_lc(struct kvm_vcpu *vcpu, unsigned long gra, void *data, unsigned long len) { - unsigned long gpa = gra + vcpu->arch.sie_block->prefix; + unsigned long gpa = gra + kvm_s390_get_prefix(vcpu); return kvm_write_guest(vcpu->kvm, gpa, data, len); } @@ -150,7 +150,7 @@ static inline __must_check int read_guest_lc(struct kvm_vcpu *vcpu, unsigned long gra, void *data, unsigned long len) { - unsigned long gpa = gra + vcpu->arch.sie_block->prefix; + unsigned long gpa = gra + kvm_s390_get_prefix(vcpu); return kvm_read_guest(vcpu->kvm, gpa, data, len); } |