KVM: s390: convert handle_lpsw[e]()

Convert handle_lpsw[e]() 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>

1 files changed, 9 insertions, 4 deletions

diff --git a/arch/s390/kvm/priv.c b/arch/s390/kvm/priv.c
index f4451f09b9ed..2de74543bd07 100644
--- a/arch/s390/kvm/priv.c
+++ b/arch/s390/kvm/priv.c
@@ -381,6 +381,7 @@ int kvm_s390_handle_lpsw(struct kvm_vcpu *vcpu)
         psw_t *gpsw = &vcpu->arch.sie_block->gpsw;
         psw_compat_t new_psw;
         u64 addr;
+        int rc;
 
         if (gpsw->mask & PSW_MASK_PSTATE)
                 return kvm_s390_inject_program_int(vcpu, PGM_PRIVILEGED_OP);
@@ -388,8 +389,10 @@ int kvm_s390_handle_lpsw(struct kvm_vcpu *vcpu)
         addr = kvm_s390_get_base_disp_s(vcpu);
         if (addr & 7)
                 return kvm_s390_inject_program_int(vcpu, PGM_SPECIFICATION);
-        if (copy_from_guest(vcpu, &new_psw, addr, sizeof(new_psw)))
-                return kvm_s390_inject_program_int(vcpu, PGM_ADDRESSING);
+
+        rc = read_guest(vcpu, addr, &new_psw, sizeof(new_psw));
+        if (rc)
+                return kvm_s390_inject_prog_cond(vcpu, rc);
         if (!(new_psw.mask & PSW32_MASK_BASE))
                 return kvm_s390_inject_program_int(vcpu, PGM_SPECIFICATION);
         gpsw->mask = (new_psw.mask & ~PSW32_MASK_BASE) << 32;
@@ -405,6 +408,7 @@ static int handle_lpswe(struct kvm_vcpu *vcpu)
 {
         psw_t new_psw;
         u64 addr;
+        int rc;
 
         if (vcpu->arch.sie_block->gpsw.mask & PSW_MASK_PSTATE)
                 return kvm_s390_inject_program_int(vcpu, PGM_PRIVILEGED_OP);
@@ -412,8 +416,9 @@ static int handle_lpswe(struct kvm_vcpu *vcpu)
         addr = kvm_s390_get_base_disp_s(vcpu);
         if (addr & 7)
                 return kvm_s390_inject_program_int(vcpu, PGM_SPECIFICATION);
-        if (copy_from_guest(vcpu, &new_psw, addr, sizeof(new_psw)))
-                return kvm_s390_inject_program_int(vcpu, PGM_ADDRESSING);
+        rc = read_guest(vcpu, addr, &new_psw, sizeof(new_psw));
+        if (rc)
+                return kvm_s390_inject_prog_cond(vcpu, rc);
         vcpu->arch.sie_block->gpsw = new_psw;
         if (!is_valid_psw(&vcpu->arch.sie_block->gpsw))
                 return kvm_s390_inject_program_int(vcpu, PGM_SPECIFICATION);