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KVM: s390: Use the read_guest_abs() in guest debug functions

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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>
This commit is contained in:
Alexander Yarygin 2015-03-03 19:05:43 +03:00 committed by Christian Borntraeger
parent 16a0c4c3aa
commit 1f289a8429
1 changed files with 4 additions and 4 deletions
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8
arch/s390/kvm/guestdbg.c
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@ -191,8 +191,8 @@ static int __import_wp_info(struct kvm_vcpu *vcpu,
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 @@ static struct kvm_hw_wp_info_arch *any_wp_changed(struct kvm_vcpu *vcpu)
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;