I'm not sure why we had left out the address check in case of indirect
accesses (where "data" holds a guest physical address).
Signed-off-by: Jan Beulich <jbeul...@suse.com>
--- a/xen/arch/x86/hvm/emulate.c
+++ b/xen/arch/x86/hvm/emulate.c
@@ -163,7 +163,8 @@ static int hvmemul_do_io(
(p.count > *reps) ||
(p.dir != dir) ||
(p.df != df) ||
- (p.data_is_ptr != data_is_addr) )
+ (p.data_is_ptr != data_is_addr) ||
+ (data_is_addr && (p.data != data)) )
domain_crash(currd);
if ( data_is_addr )
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