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KVM: s390: convert handle_store_cpu_address()

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Convert handle_store_cpu_address() 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 16:53:27 +01:00 committed by Christian Borntraeger
parent f748f4a7ec
commit 8b96de0e03
1 changed files with 10 additions and 7 deletions
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17
arch/s390/kvm/priv.c
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@ -134,23 +134,26 @@ static int handle_store_prefix(struct kvm_vcpu *vcpu)
static int handle_store_cpu_address(struct kvm_vcpu *vcpu)
{
u64 useraddr;
u16 vcpu_id = vcpu->vcpu_id;
u64 ga;
int rc;
vcpu->stat.instruction_stap++;
if (vcpu->arch.sie_block->gpsw.mask & PSW_MASK_PSTATE)
return kvm_s390_inject_program_int(vcpu, PGM_PRIVILEGED_OP);
useraddr = kvm_s390_get_base_disp_s(vcpu);
ga = kvm_s390_get_base_disp_s(vcpu);
if (useraddr & 1)
if (ga & 1)
return kvm_s390_inject_program_int(vcpu, PGM_SPECIFICATION);
if (put_guest(vcpu, vcpu->vcpu_id, (u16 __user *)useraddr))
return kvm_s390_inject_program_int(vcpu, PGM_ADDRESSING);
rc = write_guest(vcpu, ga, &vcpu_id, sizeof(vcpu_id));
if (rc)
return kvm_s390_inject_prog_cond(vcpu, rc);
VCPU_EVENT(vcpu, 5, "storing cpu address to %llx", useraddr);
trace_kvm_s390_handle_stap(vcpu, useraddr);
VCPU_EVENT(vcpu, 5, "storing cpu address to %llx", ga);
trace_kvm_s390_handle_stap(vcpu, ga);
return 0;
}