diff options
Diffstat (limited to 'include/hw/xen/xen_common.h')
-rw-r--r-- | include/hw/xen/xen_common.h | 160 |
1 files changed, 160 insertions, 0 deletions
diff --git a/include/hw/xen/xen_common.h b/include/hw/xen/xen_common.h new file mode 100644 index 0000000..2d5a25b --- /dev/null +++ b/include/hw/xen/xen_common.h @@ -0,0 +1,160 @@ +#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 */ |