1/* SPDX-License-Identifier: GPL-2.0 */
 2#ifndef _XEN_PLATFORM_PCI_H
 3#define _XEN_PLATFORM_PCI_H
 4
 5#define XEN_IOPORT_MAGIC_VAL 0x49d2
 6#define XEN_IOPORT_LINUX_PRODNUM 0x0003
 7#define XEN_IOPORT_LINUX_DRVVER  0x0001
 8
 9#define XEN_IOPORT_BASE 0x10
10
11#define XEN_IOPORT_PLATFLAGS	(XEN_IOPORT_BASE + 0) /* 1 byte access (R/W) */
12#define XEN_IOPORT_MAGIC	(XEN_IOPORT_BASE + 0) /* 2 byte access (R) */
13#define XEN_IOPORT_UNPLUG	(XEN_IOPORT_BASE + 0) /* 2 byte access (W) */
14#define XEN_IOPORT_DRVVER	(XEN_IOPORT_BASE + 0) /* 4 byte access (W) */
15
16#define XEN_IOPORT_SYSLOG	(XEN_IOPORT_BASE + 2) /* 1 byte access (W) */
17#define XEN_IOPORT_PROTOVER	(XEN_IOPORT_BASE + 2) /* 1 byte access (R) */
18#define XEN_IOPORT_PRODNUM	(XEN_IOPORT_BASE + 2) /* 2 byte access (W) */
19
20#define XEN_UNPLUG_ALL_IDE_DISKS	(1<<0)
21#define XEN_UNPLUG_ALL_NICS		(1<<1)
22#define XEN_UNPLUG_AUX_IDE_DISKS	(1<<2)
23#define XEN_UNPLUG_ALL			(XEN_UNPLUG_ALL_IDE_DISKS|\
24					 XEN_UNPLUG_ALL_NICS|\
25					 XEN_UNPLUG_AUX_IDE_DISKS)
26
27#define XEN_UNPLUG_UNNECESSARY 		(1<<16)
28#define XEN_UNPLUG_NEVER	 		(1<<17)
29
30static inline int xen_must_unplug_nics(void) {
31#if (defined(CONFIG_XEN_NETDEV_FRONTEND) || \
32		defined(CONFIG_XEN_NETDEV_FRONTEND_MODULE)) && \
33		defined(CONFIG_XEN_PVHVM)
 
34        return 1;
35#else
36        return 0;
37#endif
38}
39
40static inline int xen_must_unplug_disks(void) {
41#if (defined(CONFIG_XEN_BLKDEV_FRONTEND) || \
42		defined(CONFIG_XEN_BLKDEV_FRONTEND_MODULE)) && \
43		defined(CONFIG_XEN_PVHVM)
 
44        return 1;
45#else
46        return 0;
47#endif
48}
49
50#if defined(CONFIG_XEN_PVHVM)
51extern bool xen_has_pv_devices(void);
52extern bool xen_has_pv_disk_devices(void);
53extern bool xen_has_pv_nic_devices(void);
54extern bool xen_has_pv_and_legacy_disk_devices(void);
55#else
56static inline bool xen_has_pv_devices(void)
57{
58	return IS_ENABLED(CONFIG_XEN);
59}
60static inline bool xen_has_pv_disk_devices(void)
61{
62	return IS_ENABLED(CONFIG_XEN);
63}
64static inline bool xen_has_pv_nic_devices(void)
65{
66	return IS_ENABLED(CONFIG_XEN);
67}
68static inline bool xen_has_pv_and_legacy_disk_devices(void)
69{
70	return false;
71}
72#endif
73#endif /* _XEN_PLATFORM_PCI_H */

 
 1#ifndef _XEN_PLATFORM_PCI_H
 2#define _XEN_PLATFORM_PCI_H
 3
 4#define XEN_IOPORT_MAGIC_VAL 0x49d2
 5#define XEN_IOPORT_LINUX_PRODNUM 0x0003
 6#define XEN_IOPORT_LINUX_DRVVER  0x0001
 7
 8#define XEN_IOPORT_BASE 0x10
 9
10#define XEN_IOPORT_PLATFLAGS	(XEN_IOPORT_BASE + 0) /* 1 byte access (R/W) */
11#define XEN_IOPORT_MAGIC	(XEN_IOPORT_BASE + 0) /* 2 byte access (R) */
12#define XEN_IOPORT_UNPLUG	(XEN_IOPORT_BASE + 0) /* 2 byte access (W) */
13#define XEN_IOPORT_DRVVER	(XEN_IOPORT_BASE + 0) /* 4 byte access (W) */
14
15#define XEN_IOPORT_SYSLOG	(XEN_IOPORT_BASE + 2) /* 1 byte access (W) */
16#define XEN_IOPORT_PROTOVER	(XEN_IOPORT_BASE + 2) /* 1 byte access (R) */
17#define XEN_IOPORT_PRODNUM	(XEN_IOPORT_BASE + 2) /* 2 byte access (W) */
18
19#define XEN_UNPLUG_ALL_IDE_DISKS	(1<<0)
20#define XEN_UNPLUG_ALL_NICS		(1<<1)
21#define XEN_UNPLUG_AUX_IDE_DISKS	(1<<2)
22#define XEN_UNPLUG_ALL			(XEN_UNPLUG_ALL_IDE_DISKS|\
23					 XEN_UNPLUG_ALL_NICS|\
24					 XEN_UNPLUG_AUX_IDE_DISKS)
25
26#define XEN_UNPLUG_UNNECESSARY 		(1<<16)
27#define XEN_UNPLUG_NEVER	 		(1<<17)
28
29static inline int xen_must_unplug_nics(void) {
30#if (defined(CONFIG_XEN_NETDEV_FRONTEND) || \
31		defined(CONFIG_XEN_NETDEV_FRONTEND_MODULE)) && \
32		(defined(CONFIG_XEN_PLATFORM_PCI) || \
33		 defined(CONFIG_XEN_PLATFORM_PCI_MODULE))
34        return 1;
35#else
36        return 0;
37#endif
38}
39
40static inline int xen_must_unplug_disks(void) {
41#if (defined(CONFIG_XEN_BLKDEV_FRONTEND) || \
42		defined(CONFIG_XEN_BLKDEV_FRONTEND_MODULE)) && \
43		(defined(CONFIG_XEN_PLATFORM_PCI) || \
44		 defined(CONFIG_XEN_PLATFORM_PCI_MODULE))
45        return 1;
46#else
47        return 0;
48#endif
49}
50
51extern int xen_platform_pci_unplug;
52
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
53#endif /* _XEN_PLATFORM_PCI_H */