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kvm: tolerate non-existing slot for log_start/log_stop/log_sync 

If we want to trap every access to a section, we might not have a
slot. So let's just tolerate if we don't have one.

Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20171016144302.24284-4-david@redhat.com>
Tested-by: Joe Clifford <joeclifford@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
David Hildenbrand 2017-10-16 16:42:58 +02:00 committed by Paolo Bonzini
parent bbfd3017eb
commit e377e87ca6
1 changed files with 4 additions and 4 deletions
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8
accel/kvm/kvm-all.c
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@ -394,8 +394,8 @@ static int kvm_section_update_flags(KVMMemoryListener *kml,
mem = kvm_lookup_matching_slot(kml, start_addr, size);
if (!mem) {
fprintf(stderr, "%s: error finding slot\n", __func__);
abort();
/* We don't have a slot if we want to trap every access. */
return 0;
}
return kvm_slot_update_flags(kml, mem, section->mr);
@ -470,8 +470,8 @@ static int kvm_physical_sync_dirty_bitmap(KVMMemoryListener *kml,
if (size) {
mem = kvm_lookup_matching_slot(kml, start_addr, size);
if (!mem) {
fprintf(stderr, "%s: error finding slot\n", __func__);
abort();
/* We don't have a slot if we want to trap every access. */
return 0;
}
/* XXX bad kernel interface alert