KVM: s390: convert handle_test_block()

Convert handle_test_block() 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 36c34cf228897cd774fc006c243a6a203bea4f4b..5abfd531a8f1316d7e5f7df2edc826359c4db0a4 100644 (file)
--- a/arch/s390/kvm/priv.c
+++ b/arch/s390/kvm/priv.c
@@ -198,7 +198,6 @@ static int handle_ipte_interlock(struct kvm_vcpu *vcpu)
 
 static int handle_test_block(struct kvm_vcpu *vcpu)
 {
-       unsigned long hva;
        gpa_t addr;
        int reg2;
 
@@ -209,14 +208,13 @@ static int handle_test_block(struct kvm_vcpu *vcpu)
        addr = vcpu->run->s.regs.gprs[reg2] & PAGE_MASK;
        addr = kvm_s390_real_to_abs(vcpu, addr);
 
-       hva = gfn_to_hva(vcpu->kvm, gpa_to_gfn(addr));
-       if (kvm_is_error_hva(hva))
+       if (kvm_is_error_gpa(vcpu->kvm, addr))
                return kvm_s390_inject_program_int(vcpu, PGM_ADDRESSING);
        /*
         * We don't expect errors on modern systems, and do not care
         * about storage keys (yet), so let's just clear the page.
         */
-       if (clear_user((void __user *)hva, PAGE_SIZE) != 0)
+       if (kvm_clear_guest(vcpu->kvm, addr, PAGE_SIZE))
                return -EFAULT;
        kvm_s390_set_psw_cc(vcpu, 0);
        vcpu->run->s.regs.gprs[0] = 0;