KVM: s390: convert handle_stidp()

Convert handle_stidp() to new guest access functions.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Reviewed-by: Thomas Huth <thuth@linux.vnet.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>

1 files changed, 5 insertions, 2 deletions

diff --git a/arch/s390/kvm/priv.c b/arch/s390/kvm/priv.c
index 2de74543bd07..bc969722a293 100644
--- a/arch/s390/kvm/priv.c
+++ b/arch/s390/kvm/priv.c
@@ -428,7 +428,9 @@ static int handle_lpswe(struct kvm_vcpu *vcpu)
 
 static int handle_stidp(struct kvm_vcpu *vcpu)
 {
+        u64 stidp_data = vcpu->arch.stidp_data;
         u64 operand2;
+        int rc;
 
         vcpu->stat.instruction_stidp++;
 
@@ -440,8 +442,9 @@ static int handle_stidp(struct kvm_vcpu *vcpu)
         if (operand2 & 7)
                 return kvm_s390_inject_program_int(vcpu, PGM_SPECIFICATION);
 
-        if (put_guest(vcpu, vcpu->arch.stidp_data, (u64 __user *)operand2))
-                return kvm_s390_inject_program_int(vcpu, PGM_ADDRESSING);
+        rc = write_guest(vcpu, operand2, &stidp_data, sizeof(stidp_data));
+        if (rc)
+                return kvm_s390_inject_prog_cond(vcpu, rc);
 
         VCPU_EVENT(vcpu, 5, "%s", "store cpu id");
         return 0;