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 */

 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_PVHVM)
 
33        return 1;
34#else
35        return 0;
36#endif
37}
38
39static inline int xen_must_unplug_disks(void) {
40#if (defined(CONFIG_XEN_BLKDEV_FRONTEND) || \
41		defined(CONFIG_XEN_BLKDEV_FRONTEND_MODULE)) && \
42		defined(CONFIG_XEN_PVHVM)
 
43        return 1;
44#else
45        return 0;
46#endif
47}
48
49#if defined(CONFIG_XEN_PVHVM)
50extern bool xen_has_pv_devices(void);
51extern bool xen_has_pv_disk_devices(void);
52extern bool xen_has_pv_nic_devices(void);
53extern bool xen_has_pv_and_legacy_disk_devices(void);
54#else
55static inline bool xen_has_pv_devices(void)
56{
57	return IS_ENABLED(CONFIG_XEN);
58}
59static inline bool xen_has_pv_disk_devices(void)
60{
61	return IS_ENABLED(CONFIG_XEN);
62}
63static inline bool xen_has_pv_nic_devices(void)
64{
65	return IS_ENABLED(CONFIG_XEN);
66}
67static inline bool xen_has_pv_and_legacy_disk_devices(void)
68{
69	return false;
70}
71#endif
72#endif /* _XEN_PLATFORM_PCI_H */