kvm: selftests: ucall: improve ucall placement in memory, fix unsigned comparison

Based on a patch by Andrew Jones.

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Paolo Bonzini 2018-12-14 12:29:43 +01:00
commit 5132411985