include/hw/xen/xen-hvm-common.h

   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 */