21 lines
431 B
C
21 lines
431 B
C
/* 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 */
|