Archipelago » qemu

#ifndef QEMU_HW_XEN_COMMON_H

#define QEMU_HW_XEN_COMMON_H 1

#include "config-host.h"

#include <stddef.h>

#include <inttypes.h>

#include <xenctrl.h>

#if CONFIG_XEN_CTRL_INTERFACE_VERSION < 420

#  include <xs.h>

#else

#  include <xenstore.h>

#endif

#include <xen/io/xenbus.h>

#include "hw/hw.h"

#include "hw/xen/xen.h"

#include "qemu/queue.h"

/*

 * We don't support Xen prior to 3.3.0.

 */

/* Xen before 4.0 */

#if CONFIG_XEN_CTRL_INTERFACE_VERSION < 400

static inline void *xc_map_foreign_bulk(int xc_handle, uint32_t dom, int prot,

                                        xen_pfn_t *arr, int *err,

                                        unsigned int num)

{

    return xc_map_foreign_batch(xc_handle, dom, prot, arr, num);

}

#endif

/* Xen before 4.1 */

#if CONFIG_XEN_CTRL_INTERFACE_VERSION < 410

typedef int XenXC;

typedef int XenEvtchn;

typedef int XenGnttab;

#  define XC_INTERFACE_FMT "%i"

#  define XC_HANDLER_INITIAL_VALUE    -1

static inline XenEvtchn xen_xc_evtchn_open(void *logger,

                                           unsigned int open_flags)

{

    return xc_evtchn_open();

}

static inline XenGnttab xen_xc_gnttab_open(void *logger,

                                           unsigned int open_flags)

{

    return xc_gnttab_open();

}

static inline XenXC xen_xc_interface_open(void *logger, void *dombuild_logger,

                                          unsigned int open_flags)

{

    return xc_interface_open();

}

static inline int xc_fd(int xen_xc)

{

    return xen_xc;

}

static inline int xc_domain_populate_physmap_exact

    (XenXC xc_handle, uint32_t domid, unsigned long nr_extents,

     unsigned int extent_order, unsigned int mem_flags, xen_pfn_t *extent_start)

{

    return xc_domain_memory_populate_physmap

        (xc_handle, domid, nr_extents, extent_order, mem_flags, extent_start);

}

static inline int xc_domain_add_to_physmap(int xc_handle, uint32_t domid,

                                           unsigned int space, unsigned long idx,

                                           xen_pfn_t gpfn)

{

    struct xen_add_to_physmap xatp = {

        .domid = domid,

        .space = space,

        .idx = idx,

        .gpfn = gpfn,

    };

    return xc_memory_op(xc_handle, XENMEM_add_to_physmap, &xatp);

}

static inline struct xs_handle *xs_open(unsigned long flags)

{

    return xs_daemon_open();

}

static inline void xs_close(struct xs_handle *xsh)

{

    if (xsh != NULL) {

        xs_daemon_close(xsh);

    }

}

/* Xen 4.1 */

#else

typedef xc_interface *XenXC;

typedef xc_evtchn *XenEvtchn;

typedef xc_gnttab *XenGnttab;

#  define XC_INTERFACE_FMT "%p"

#  define XC_HANDLER_INITIAL_VALUE    NULL

static inline XenEvtchn xen_xc_evtchn_open(void *logger,

                                           unsigned int open_flags)

{

    return xc_evtchn_open(logger, open_flags);

}

static inline XenGnttab xen_xc_gnttab_open(void *logger,

                                           unsigned int open_flags)

{

    return xc_gnttab_open(logger, open_flags);

}

static inline XenXC xen_xc_interface_open(void *logger, void *dombuild_logger,

                                          unsigned int open_flags)

{

    return xc_interface_open(logger, dombuild_logger, open_flags);

}

/* FIXME There is now way to have the xen fd */

static inline int xc_fd(xc_interface *xen_xc)

{

    return -1;

}

#endif

/* Xen before 4.2 */

#if CONFIG_XEN_CTRL_INTERFACE_VERSION < 420

static inline int xen_xc_hvm_inject_msi(XenXC xen_xc, domid_t dom,

        uint64_t addr, uint32_t data)

{

    return -ENOSYS;

}

#else

static inline int xen_xc_hvm_inject_msi(XenXC xen_xc, domid_t dom,

        uint64_t addr, uint32_t data)

{

    return xc_hvm_inject_msi(xen_xc, dom, addr, data);

}

#endif

void destroy_hvm_domain(bool reboot);

/* shutdown/destroy current domain because of an error */

void xen_shutdown_fatal_error(const char *fmt, ...) GCC_FMT_ATTR(1, 2);

#endif /* QEMU_HW_XEN_COMMON_H */