KVM: s390: convert handle_store_prefix()
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>
diff --git a/arch/s390/kvm/priv.c b/arch/s390/kvm/priv.c
index 9648504..306caa2 100644
--- a/arch/s390/kvm/priv.c
+++ b/arch/s390/kvm/priv.c
@@ -106,6 +106,7 @@
{
u64 operand2;
u32 address;
+ int rc;
vcpu->stat.instruction_stpx++;
@@ -122,8 +123,9 @@
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);