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/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_ARM_SWIOTLB_XEN_H
#define _ASM_ARM_SWIOTLB_XEN_H
#include <xen/features.h>
#include <xen/xen.h>
static inline int xen_swiotlb_detect(void)
{
if (!xen_domain())
return 0;
if (xen_feature(XENFEAT_direct_mapped))
return 1;
/* legacy case */
if (!xen_feature(XENFEAT_not_direct_mapped) && xen_initial_domain())
return 1;
return 0;
}
#endif /* _ASM_ARM_SWIOTLB_XEN_H */
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