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-rw-r--r--arch/s390/kvm/priv.c13
1 files changed, 9 insertions, 4 deletions
diff --git a/arch/s390/kvm/priv.c b/arch/s390/kvm/priv.c
index f4451f0..2de7454 100644
--- a/arch/s390/kvm/priv.c
+++ b/arch/s390/kvm/priv.c
@@ -381,6 +381,7 @@ int kvm_s390_handle_lpsw(struct kvm_vcpu *vcpu)
psw_t *gpsw = &vcpu->arch.sie_block->gpsw;
psw_compat_t new_psw;
u64 addr;
+ int rc;
if (gpsw->mask & PSW_MASK_PSTATE)
return kvm_s390_inject_program_int(vcpu, PGM_PRIVILEGED_OP);
@@ -388,8 +389,10 @@ int kvm_s390_handle_lpsw(struct kvm_vcpu *vcpu)
addr = kvm_s390_get_base_disp_s(vcpu);
if (addr & 7)
return kvm_s390_inject_program_int(vcpu, PGM_SPECIFICATION);
- if (copy_from_guest(vcpu, &new_psw, addr, sizeof(new_psw)))
- return kvm_s390_inject_program_int(vcpu, PGM_ADDRESSING);
+
+ rc = read_guest(vcpu, addr, &new_psw, sizeof(new_psw));
+ if (rc)
+ return kvm_s390_inject_prog_cond(vcpu, rc);
if (!(new_psw.mask & PSW32_MASK_BASE))
return kvm_s390_inject_program_int(vcpu, PGM_SPECIFICATION);
gpsw->mask = (new_psw.mask & ~PSW32_MASK_BASE) << 32;
@@ -405,6 +408,7 @@ static int handle_lpswe(struct kvm_vcpu *vcpu)
{
psw_t new_psw;
u64 addr;
+ int rc;
if (vcpu->arch.sie_block->gpsw.mask & PSW_MASK_PSTATE)
return kvm_s390_inject_program_int(vcpu, PGM_PRIVILEGED_OP);
@@ -412,8 +416,9 @@ static int handle_lpswe(struct kvm_vcpu *vcpu)
addr = kvm_s390_get_base_disp_s(vcpu);
if (addr & 7)
return kvm_s390_inject_program_int(vcpu, PGM_SPECIFICATION);
- if (copy_from_guest(vcpu, &new_psw, addr, sizeof(new_psw)))
- return kvm_s390_inject_program_int(vcpu, PGM_ADDRESSING);
+ rc = read_guest(vcpu, addr, &new_psw, sizeof(new_psw));
+ if (rc)
+ return kvm_s390_inject_prog_cond(vcpu, rc);
vcpu->arch.sie_block->gpsw = new_psw;
if (!is_valid_psw(&vcpu->arch.sie_block->gpsw))
return kvm_s390_inject_program_int(vcpu, PGM_SPECIFICATION);
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