1#ifndef _XEN_XEN_H
 2#define _XEN_XEN_H
 3
 4enum xen_domain_type {
 5	XEN_NATIVE,		/* running on bare hardware    */
 6	XEN_PV_DOMAIN,		/* running in a PV domain      */
 7	XEN_HVM_DOMAIN,		/* running in a Xen hvm domain */
 8};
 9
10#ifdef CONFIG_XEN
11extern enum xen_domain_type xen_domain_type;
12#else
13#define xen_domain_type		XEN_NATIVE
14#endif
15
 
 
 
 
 
 
16#define xen_domain()		(xen_domain_type != XEN_NATIVE)
17#define xen_pv_domain()		(xen_domain() &&			\
18				 xen_domain_type == XEN_PV_DOMAIN)
19#define xen_hvm_domain()	(xen_domain() &&			\
20				 xen_domain_type == XEN_HVM_DOMAIN)
 
 
 
 
 
 
21
22#ifdef CONFIG_XEN_DOM0
23#include <xen/interface/xen.h>
24#include <asm/xen/hypervisor.h>
25
26#define xen_initial_domain()	(xen_pv_domain() && \
27				 xen_start_info->flags & SIF_INITDOMAIN)
28#else  /* !CONFIG_XEN_DOM0 */
29#define xen_initial_domain()	(0)
30#endif	/* CONFIG_XEN_DOM0 */
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
31
32#endif	/* _XEN_XEN_H */

 1/* SPDX-License-Identifier: GPL-2.0 */
 2#ifndef _XEN_XEN_H
 3#define _XEN_XEN_H
 4
 5enum xen_domain_type {
 6	XEN_NATIVE,		/* running on bare hardware    */
 7	XEN_PV_DOMAIN,		/* running in a PV domain      */
 8	XEN_HVM_DOMAIN,		/* running in a Xen hvm domain */
 9};
10
11#ifdef CONFIG_XEN
12extern enum xen_domain_type xen_domain_type;
13#else
14#define xen_domain_type		XEN_NATIVE
15#endif
16
17#ifdef CONFIG_XEN_PVH
18extern bool xen_pvh;
19#else
20#define xen_pvh			0
21#endif
22
23#define xen_domain()		(xen_domain_type != XEN_NATIVE)
24#define xen_pv_domain()		(xen_domain_type == XEN_PV_DOMAIN)
25#define xen_hvm_domain()	(xen_domain_type == XEN_HVM_DOMAIN)
26#define xen_pvh_domain()	(xen_pvh)
27
28#include <linux/types.h>
29
30extern uint32_t xen_start_flags;
31
32#include <xen/interface/hvm/start_info.h>
33extern struct hvm_start_info pvh_start_info;
34
35#ifdef CONFIG_XEN_DOM0
36#include <xen/interface/xen.h>
37#include <asm/xen/hypervisor.h>
38
39#define xen_initial_domain()	(xen_domain() && \
40				 (xen_start_flags & SIF_INITDOMAIN))
41#else  /* !CONFIG_XEN_DOM0 */
42#define xen_initial_domain()	(0)
43#endif	/* CONFIG_XEN_DOM0 */
44
45struct bio_vec;
46struct page;
47
48bool xen_biovec_phys_mergeable(const struct bio_vec *vec1,
49		const struct page *page);
50
51#if defined(CONFIG_MEMORY_HOTPLUG) && defined(CONFIG_XEN_BALLOON)
52extern u64 xen_saved_max_mem_size;
53#endif
54
55#ifdef CONFIG_XEN_UNPOPULATED_ALLOC
56int xen_alloc_unpopulated_pages(unsigned int nr_pages, struct page **pages);
57void xen_free_unpopulated_pages(unsigned int nr_pages, struct page **pages);
58#else
59#define xen_alloc_unpopulated_pages alloc_xenballooned_pages
60#define xen_free_unpopulated_pages free_xenballooned_pages
61#include <xen/balloon.h>
62#endif
63
64#endif	/* _XEN_XEN_H */