KVM: s390: Handle hosts not supporting s390-virtio.

Running under a kvm host does not necessarily imply the presence of
a page mapped above the main memory with the virtio information;
however, the code includes a hard coded access to that page.

Instead, check for the presence of the page and exit gracefully
before we hit an addressing exception if it does not exist.

Reviewed-by: Marcelo Tosatti <[email protected]>
Reviewed-by: Alexander Graf <[email protected]>
Signed-off-by: Cornelia Huck <[email protected]>
cc: [email protected]
Signed-off-by: Gleb Natapov <[email protected]>

0 files changed, 0 insertions, 0 deletions