tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
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 */