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| author | Pierre Morel <pmorel@linux.ibm.com> | 2022-05-04 14:29:08 +0200 |
|---|---|---|
| committer | Janosch Frank <frankja@linux.ibm.com> | 2022-07-20 10:57:36 +0200 |
| commit | 0130337ec45bffd26ba3e782850da3b68f1eef9d (patch) | |
| tree | e5390763753c56aef126a00c4b81bc980c7b231e /arch/s390/kvm/priv.c | |
| parent | c3f0e5fd2d33d80c5a5a8b5e5d2bab2841709cc8 (diff) | |
| download | linux-0130337ec45bffd26ba3e782850da3b68f1eef9d.tar.gz | |
KVM: s390: Cleanup ipte lock access and SIIF facility checks
We can check if SIIF is enabled by testing the sclp_info struct
instead of testing the sie control block eca variable as that
facility is always enabled if available.
Also let's cleanup all the ipte related struct member accesses
which currently happen by referencing the KVM struct via the
VCPU struct.
Making the KVM struct the parameter to the ipte_* functions
removes one level of indirection which makes the code more readable.
Signed-off-by: Pierre Morel <pmorel@linux.ibm.com>
Reviewed-by: Janosch Frank <frankja@linux.ibm.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Nico Boehr <nrb@linux.ibm.com>
Link: https://lore.kernel.org/all/20220711084148.25017-2-pmorel@linux.ibm.com/
Signed-off-by: Janosch Frank <frankja@linux.ibm.com>
Diffstat (limited to 'arch/s390/kvm/priv.c')
| -rw-r--r-- | arch/s390/kvm/priv.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/arch/s390/kvm/priv.c b/arch/s390/kvm/priv.c index 83bb5cf97282..12c464c7cddf 100644 --- a/arch/s390/kvm/priv.c +++ b/arch/s390/kvm/priv.c @@ -442,7 +442,7 @@ static int handle_ipte_interlock(struct kvm_vcpu *vcpu) vcpu->stat.instruction_ipte_interlock++; if (psw_bits(vcpu->arch.sie_block->gpsw).pstate) return kvm_s390_inject_program_int(vcpu, PGM_PRIVILEGED_OP); - wait_event(vcpu->kvm->arch.ipte_wq, !ipte_lock_held(vcpu)); + wait_event(vcpu->kvm->arch.ipte_wq, !ipte_lock_held(vcpu->kvm)); kvm_s390_retry_instr(vcpu); VCPU_EVENT(vcpu, 4, "%s", "retrying ipte interlock operation"); return 0; @@ -1471,7 +1471,7 @@ static int handle_tprot(struct kvm_vcpu *vcpu) access_key = (operand2 & 0xf0) >> 4; if (vcpu->arch.sie_block->gpsw.mask & PSW_MASK_DAT) - ipte_lock(vcpu); + ipte_lock(vcpu->kvm); ret = guest_translate_address_with_key(vcpu, address, ar, &gpa, GACC_STORE, access_key); @@ -1508,7 +1508,7 @@ static int handle_tprot(struct kvm_vcpu *vcpu) } if (vcpu->arch.sie_block->gpsw.mask & PSW_MASK_DAT) - ipte_unlock(vcpu); + ipte_unlock(vcpu->kvm); return ret; } |