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
  20 #define XEN_UNPLUG_ALL_NICS 2
  21 #define XEN_UNPLUG_AUX_IDE_DISKS 4
  22 #define XEN_UNPLUG_ALL 7
  23 #define XEN_UNPLUG_IGNORE 8
  24
  25 static inline int xen_must_unplug_nics(void) {
  26 #if (defined(CONFIG_XEN_NETDEV_FRONTEND) || \
  27                 defined(CONFIG_XEN_NETDEV_FRONTEND_MODULE)) && \
  28                 (defined(CONFIG_XEN_PLATFORM_PCI) || \
  29                  defined(CONFIG_XEN_PLATFORM_PCI_MODULE))
  30         return 1;
  31 #else
  32         return 0;
  33 #endif
  34 }
  35
  36 static inline int xen_must_unplug_disks(void) {
  37 #if (defined(CONFIG_XEN_BLKDEV_FRONTEND) || \
  38                 defined(CONFIG_XEN_BLKDEV_FRONTEND_MODULE)) && \
  39                 (defined(CONFIG_XEN_PLATFORM_PCI) || \
  40                  defined(CONFIG_XEN_PLATFORM_PCI_MODULE))
  41         return 1;
  42 #else
  43         return 0;
  44 #endif
  45 }
  46
  47 extern int xen_platform_pci_unplug;
  48
  49 #endif /* _XEN_PLATFORM_PCI_H */