Signed-off-by: Jan Beulich <jbeul...@suse.com>
--- a/xen/arch/x86/pv/emul-priv-op.c
+++ b/xen/arch/x86/pv/emul-priv-op.c
@@ -136,7 +136,7 @@ static bool guest_io_okay(unsigned int p
if ( iopl_ok(v, regs) )
return true;
- if ( v->arch.pv_vcpu.iobmp_limit > (port + bytes) )
+ if ( v->arch.pv_vcpu.iobmp_limit >= (port + bytes) )
{
union { uint8_t bytes[2]; uint16_t mask; } x;
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