KVM: s390: Use the read_guest_abs() in guest debug functions
The guest debug functions work on absolute addresses and should use the
read_guest_abs() function rather than general read_guest() that
works with logical addresses.
Cc: David Hildenbrand <dahi@linux.vnet.ibm.com>
Signed-off-by: Alexander Yarygin <yarygin@linux.vnet.ibm.com>
Reviewed-by: David Hildenbrand <dahi@linux.vnet.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/guestdbg.c b/arch/s390/kvm/guestdbg.c
index 3e8d409..e97b345 100644
--- a/arch/s390/kvm/guestdbg.c
+++ b/arch/s390/kvm/guestdbg.c
@@ -191,8 +191,8 @@
if (!wp_info->old_data)
return -ENOMEM;
/* try to backup the original value */
- ret = read_guest(vcpu, wp_info->phys_addr, wp_info->old_data,
- wp_info->len);
+ ret = read_guest_abs(vcpu, wp_info->phys_addr, wp_info->old_data,
+ wp_info->len);
if (ret) {
kfree(wp_info->old_data);
wp_info->old_data = NULL;
@@ -362,8 +362,8 @@
continue;
/* refetch the wp data and compare it to the old value */
- if (!read_guest(vcpu, wp_info->phys_addr, temp,
- wp_info->len)) {
+ if (!read_guest_abs(vcpu, wp_info->phys_addr, temp,
+ wp_info->len)) {
if (memcmp(temp, wp_info->old_data, wp_info->len)) {
kfree(temp);
return wp_info;