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73 lines
2.0 KiB
73 lines
2.0 KiB
/* SPDX-License-Identifier: GPL-2.0 */ |
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#ifndef _XEN_PLATFORM_PCI_H |
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#define _XEN_PLATFORM_PCI_H |
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#define XEN_IOPORT_MAGIC_VAL 0x49d2 |
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#define XEN_IOPORT_LINUX_PRODNUM 0x0003 |
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#define XEN_IOPORT_LINUX_DRVVER 0x0001 |
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#define XEN_IOPORT_BASE 0x10 |
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#define XEN_IOPORT_PLATFLAGS (XEN_IOPORT_BASE + 0) /* 1 byte access (R/W) */ |
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#define XEN_IOPORT_MAGIC (XEN_IOPORT_BASE + 0) /* 2 byte access (R) */ |
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#define XEN_IOPORT_UNPLUG (XEN_IOPORT_BASE + 0) /* 2 byte access (W) */ |
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#define XEN_IOPORT_DRVVER (XEN_IOPORT_BASE + 0) /* 4 byte access (W) */ |
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#define XEN_IOPORT_SYSLOG (XEN_IOPORT_BASE + 2) /* 1 byte access (W) */ |
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#define XEN_IOPORT_PROTOVER (XEN_IOPORT_BASE + 2) /* 1 byte access (R) */ |
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#define XEN_IOPORT_PRODNUM (XEN_IOPORT_BASE + 2) /* 2 byte access (W) */ |
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#define XEN_UNPLUG_ALL_IDE_DISKS (1<<0) |
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#define XEN_UNPLUG_ALL_NICS (1<<1) |
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#define XEN_UNPLUG_AUX_IDE_DISKS (1<<2) |
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#define XEN_UNPLUG_ALL (XEN_UNPLUG_ALL_IDE_DISKS|\ |
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XEN_UNPLUG_ALL_NICS|\ |
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XEN_UNPLUG_AUX_IDE_DISKS) |
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#define XEN_UNPLUG_UNNECESSARY (1<<16) |
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#define XEN_UNPLUG_NEVER (1<<17) |
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static inline int xen_must_unplug_nics(void) { |
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#if (defined(CONFIG_XEN_NETDEV_FRONTEND) || \ |
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defined(CONFIG_XEN_NETDEV_FRONTEND_MODULE)) && \ |
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defined(CONFIG_XEN_PVHVM) |
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return 1; |
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#else |
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return 0; |
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#endif |
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} |
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static inline int xen_must_unplug_disks(void) { |
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#if (defined(CONFIG_XEN_BLKDEV_FRONTEND) || \ |
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defined(CONFIG_XEN_BLKDEV_FRONTEND_MODULE)) && \ |
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defined(CONFIG_XEN_PVHVM) |
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return 1; |
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#else |
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return 0; |
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#endif |
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} |
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#if defined(CONFIG_XEN_PVHVM) |
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extern bool xen_has_pv_devices(void); |
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extern bool xen_has_pv_disk_devices(void); |
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extern bool xen_has_pv_nic_devices(void); |
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extern bool xen_has_pv_and_legacy_disk_devices(void); |
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#else |
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static inline bool xen_has_pv_devices(void) |
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{ |
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return IS_ENABLED(CONFIG_XEN); |
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} |
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static inline bool xen_has_pv_disk_devices(void) |
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{ |
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return IS_ENABLED(CONFIG_XEN); |
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} |
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static inline bool xen_has_pv_nic_devices(void) |
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{ |
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return IS_ENABLED(CONFIG_XEN); |
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} |
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static inline bool xen_has_pv_and_legacy_disk_devices(void) |
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{ |
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return false; |
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} |
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#endif |
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#endif /* _XEN_PLATFORM_PCI_H */
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