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KVM: s390: convert handle_store_prefix()

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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>
This commit is contained in:
Heiko Carstens 2014-01-01 16:52:47 +01:00 committed by Christian Borntraeger
parent 0e7a3f9405
commit f748f4a7ec
1 changed files with 4 additions and 2 deletions
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6
arch/s390/kvm/priv.c
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@ -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);