include/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
  29 static 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
  40 static 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
  51 extern int xen_platform_pci_unplug;
  52
  53 #endif /* _XEN_PLATFORM_PCI_H */