1 #ifndef HW_XEN_HVM_COMMON_H
2 #define HW_XEN_HVM_COMMON_H
3
4 #include "qemu/units.h"
5
6 #include "cpu.h"
7 #include "hw/pci/pci.h"
8 #include "hw/hw.h"
9 #include "hw/xen/xen_native.h"
10 #include "hw/xen/xen-legacy-backend.h"
11 #include "sysemu/runstate.h"
12 #include "sysemu/sysemu.h"
13 #include "sysemu/xen.h"
14 #include "sysemu/xen-mapcache.h"
15 #include "qemu/error-report.h"
16 #include <xen/hvm/ioreq.h>
17
18 extern MemoryRegion xen_memory;
19 extern MemoryRegion xen_grants;
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 #define XEN_GRANT_ADDR_OFF (1ULL << 63)
34
xen_vcpu_eport(shared_iopage_t * shared_page,int i)35 static inline uint32_t xen_vcpu_eport(shared_iopage_t *shared_page, int i)
36 {
37 return shared_page->vcpu_ioreq[i].vp_eport;
38 }
xen_vcpu_ioreq(shared_iopage_t * shared_page,int vcpu)39 static inline ioreq_t *xen_vcpu_ioreq(shared_iopage_t *shared_page, int vcpu)
40 {
41 return &shared_page->vcpu_ioreq[vcpu];
42 }
43
44 #define BUFFER_IO_MAX_DELAY 100
45
46 typedef struct XenPhysmap {
47 hwaddr start_addr;
48 ram_addr_t size;
49 const char *name;
50 hwaddr phys_offset;
51
52 QLIST_ENTRY(XenPhysmap) list;
53 } XenPhysmap;
54
55 typedef struct XenPciDevice {
56 PCIDevice *pci_dev;
57 uint32_t sbdf;
58 QLIST_ENTRY(XenPciDevice) entry;
59 } XenPciDevice;
60
61 typedef struct XenIOState {
62 ioservid_t ioservid;
63 shared_iopage_t *shared_page;
64 buffered_iopage_t *buffered_io_page;
65 xenforeignmemory_resource_handle *fres;
66 QEMUTimer *buffered_io_timer;
67 CPUState **cpu_by_vcpu_id;
68 /* the evtchn port for polling the notification, */
69 evtchn_port_t *ioreq_local_port;
70 /* evtchn remote and local ports for buffered io */
71 evtchn_port_t bufioreq_remote_port;
72 evtchn_port_t bufioreq_local_port;
73 /* the evtchn fd for polling */
74 xenevtchn_handle *xce_handle;
75 /* which vcpu we are serving */
76 int send_vcpu;
77
78 struct xs_handle *xenstore;
79 MemoryListener memory_listener;
80 MemoryListener io_listener;
81 QLIST_HEAD(, XenPciDevice) dev_list;
82 DeviceListener device_listener;
83
84 Notifier exit;
85 } XenIOState;
86
87 void xen_exit_notifier(Notifier *n, void *data);
88
89 void xen_region_add(MemoryListener *listener, MemoryRegionSection *section);
90 void xen_region_del(MemoryListener *listener, MemoryRegionSection *section);
91 void xen_io_add(MemoryListener *listener, MemoryRegionSection *section);
92 void xen_io_del(MemoryListener *listener, MemoryRegionSection *section);
93 void xen_device_realize(DeviceListener *listener, DeviceState *dev);
94 void xen_device_unrealize(DeviceListener *listener, DeviceState *dev);
95
96 void xen_hvm_change_state_handler(void *opaque, bool running, RunState rstate);
97 void xen_register_ioreq(XenIOState *state, unsigned int max_cpus,
98 const MemoryListener *xen_memory_listener);
99
100 void cpu_ioreq_pio(ioreq_t *req);
101 #endif /* HW_XEN_HVM_COMMON_H */
102