KVM: s390: convert handle_store_prefix()
authorHeiko Carstens <heiko.carstens@de.ibm.com>
Wed, 1 Jan 2014 15:52:47 +0000 (16:52 +0100)
committerChristian Borntraeger <borntraeger@de.ibm.com>
Tue, 22 Apr 2014 11:24:43 +0000 (13:24 +0200)
Convert handle_store_prefix() 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>
arch/s390/kvm/priv.c

index 9648504d7818a49ef78c1e5bb14c7d93528ba975..306caa27b9624f00b57267d8b96b9e07ba100e08 100644 (file)
@@ -106,6 +106,7 @@ static int handle_store_prefix(struct kvm_vcpu *vcpu)
 {
        u64 operand2;
        u32 address;
+       int rc;
 
        vcpu->stat.instruction_stpx++;
 
@@ -122,8 +123,9 @@ static int handle_store_prefix(struct kvm_vcpu *vcpu)
        address = address & 0x7fffe000u;
 
        /* get the value */
-       if (put_guest(vcpu, address, (u32 __user *)operand2))
-               return kvm_s390_inject_program_int(vcpu, PGM_ADDRESSING);
+       rc = write_guest(vcpu, operand2, &address, sizeof(address));
+       if (rc)
+               return kvm_s390_inject_prog_cond(vcpu, rc);
 
        VCPU_EVENT(vcpu, 5, "storing prefix to %x", address);
        trace_kvm_s390_handle_prefix(vcpu, 0, address);