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_PVHVM) 33 return 1; 34 #else 35 return 0; 36 #endif 37 } 38 39 static 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 extern int xen_platform_pci_unplug; 50 51 #endif /* _XEN_PLATFORM_PCI_H */ 52