diff options
Diffstat (limited to 'arch/s390/kvm/priv.c')
| -rw-r--r-- | arch/s390/kvm/priv.c | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/arch/s390/kvm/priv.c b/arch/s390/kvm/priv.c index 1be578d64dfc..bdd9b5b17e03 100644 --- a/arch/s390/kvm/priv.c +++ b/arch/s390/kvm/priv.c @@ -337,19 +337,24 @@ static int handle_io_inst(struct kvm_vcpu *vcpu) static int handle_stfl(struct kvm_vcpu *vcpu) { int rc; + unsigned int fac; vcpu->stat.instruction_stfl++; if (vcpu->arch.sie_block->gpsw.mask & PSW_MASK_PSTATE) return kvm_s390_inject_program_int(vcpu, PGM_PRIVILEGED_OP); + /* + * We need to shift the lower 32 facility bits (bit 0-31) from a u64 + * into a u32 memory representation. They will remain bits 0-31. + */ + fac = *vcpu->kvm->arch.model.fac->sie >> 32; rc = write_guest_lc(vcpu, offsetof(struct _lowcore, stfl_fac_list), - vfacilities, 4); + &fac, sizeof(fac)); if (rc) return rc; - VCPU_EVENT(vcpu, 5, "store facility list value %x", - *(unsigned int *) vfacilities); - trace_kvm_s390_handle_stfl(vcpu, *(unsigned int *) vfacilities); + VCPU_EVENT(vcpu, 5, "store facility list value %x", fac); + trace_kvm_s390_handle_stfl(vcpu, fac); return 0; } |