1 #ifndef HW_XEN_HVM_COMMON_H 2 #define HW_XEN_HVM_COMMON_H 3 4 #include "qemu/osdep.h" 5 #include "qemu/units.h" 6 7 #include "cpu.h" 8 #include "hw/pci/pci.h" 9 #include "hw/hw.h" 10 #include "hw/xen/xen_native.h" 11 #include "hw/xen/xen-legacy-backend.h" 12 #include "sysemu/runstate.h" 13 #include "sysemu/sysemu.h" 14 #include "sysemu/xen.h" 15 #include "sysemu/xen-mapcache.h" 16 #include "qemu/error-report.h" 17 #include <xen/hvm/ioreq.h> 18 19 extern MemoryRegion ram_memory; 20 extern MemoryListener xen_io_listener; 21 extern DeviceListener xen_device_listener; 22 23 //#define DEBUG_XEN_HVM 24 25 #ifdef DEBUG_XEN_HVM 26 #define DPRINTF(fmt, ...) \ 27 do { fprintf(stderr, "xen: " fmt, ## __VA_ARGS__); } while (0) 28 #else 29 #define DPRINTF(fmt, ...) \ 30 do { } while (0) 31 #endif 32 33 static inline uint32_t xen_vcpu_eport(shared_iopage_t *shared_page, int i) 34 { 35 return shared_page->vcpu_ioreq[i].vp_eport; 36 } 37 static inline ioreq_t *xen_vcpu_ioreq(shared_iopage_t *shared_page, int vcpu) 38 { 39 return &shared_page->vcpu_ioreq[vcpu]; 40 } 41 42 #define BUFFER_IO_MAX_DELAY 100 43 44 typedef struct XenPhysmap { 45 hwaddr start_addr; 46 ram_addr_t size; 47 const char *name; 48 hwaddr phys_offset; 49 50 QLIST_ENTRY(XenPhysmap) list; 51 } XenPhysmap; 52 53 typedef struct XenPciDevice { 54 PCIDevice *pci_dev; 55 uint32_t sbdf; 56 QLIST_ENTRY(XenPciDevice) entry; 57 } XenPciDevice; 58 59 typedef struct XenIOState { 60 ioservid_t ioservid; 61 shared_iopage_t *shared_page; 62 buffered_iopage_t *buffered_io_page; 63 xenforeignmemory_resource_handle *fres; 64 QEMUTimer *buffered_io_timer; 65 CPUState **cpu_by_vcpu_id; 66 /* the evtchn port for polling the notification, */ 67 evtchn_port_t *ioreq_local_port; 68 /* evtchn remote and local ports for buffered io */ 69 evtchn_port_t bufioreq_remote_port; 70 evtchn_port_t bufioreq_local_port; 71 /* the evtchn fd for polling */ 72 xenevtchn_handle *xce_handle; 73 /* which vcpu we are serving */ 74 int send_vcpu; 75 76 struct xs_handle *xenstore; 77 MemoryListener memory_listener; 78 MemoryListener io_listener; 79 QLIST_HEAD(, XenPciDevice) dev_list; 80 DeviceListener device_listener; 81 82 Notifier exit; 83 } XenIOState; 84 85 void xen_exit_notifier(Notifier *n, void *data); 86 87 void xen_region_add(MemoryListener *listener, MemoryRegionSection *section); 88 void xen_region_del(MemoryListener *listener, MemoryRegionSection *section); 89 void xen_io_add(MemoryListener *listener, MemoryRegionSection *section); 90 void xen_io_del(MemoryListener *listener, MemoryRegionSection *section); 91 void xen_device_realize(DeviceListener *listener, DeviceState *dev); 92 void xen_device_unrealize(DeviceListener *listener, DeviceState *dev); 93 94 void xen_hvm_change_state_handler(void *opaque, bool running, RunState rstate); 95 void xen_register_ioreq(XenIOState *state, unsigned int max_cpus, 96 const MemoryListener *xen_memory_listener); 97 98 void cpu_ioreq_pio(ioreq_t *req); 99 #endif /* HW_XEN_HVM_COMMON_H */ 100