diff options
Diffstat (limited to 'kexec/kexec-xen.c')
| -rw-r--r-- | kexec/kexec-xen.c | 42 |
1 files changed, 41 insertions, 1 deletions
diff --git a/kexec/kexec-xen.c b/kexec/kexec-xen.c index 2b448d3..d42a45a 100644 --- a/kexec/kexec-xen.c +++ b/kexec/kexec-xen.c @@ -10,10 +10,50 @@ #include "config.h" #ifdef HAVE_LIBXENCTRL -#include <xenctrl.h> +#include "kexec-xen.h" #include "crashdump.h" +#ifdef CONFIG_LIBXENCTRL_DL +void *xc_dlhandle; +xc_hypercall_buffer_t XC__HYPERCALL_BUFFER_NAME(HYPERCALL_BUFFER_NULL); +xc_interface *__xc_interface_open(xentoollog_logger *logger, + xentoollog_logger *dombuild_logger, + unsigned open_flags) +{ + xc_interface *xch = NULL; + + if (!xc_dlhandle) + xc_dlhandle = dlopen("libxenctrl.so", RTLD_NOW | RTLD_NODELETE); + + if (xc_dlhandle) { + typedef xc_interface *(*func_t)(xentoollog_logger *logger, + xentoollog_logger *dombuild_logger, + unsigned open_flags); + + func_t func = (func_t)dlsym(xc_dlhandle, "xc_interface_open"); + xch = func(logger, dombuild_logger, open_flags); + } + + return xch; +} + +int __xc_interface_close(xc_interface *xch) +{ + int rc = -1; + + if (xc_dlhandle) { + typedef int (*func_t)(xc_interface *xch); + + func_t func = (func_t)dlsym(xc_dlhandle, "xc_interface_close"); + rc = func(xch); + xc_dlhandle = NULL; + } + + return rc; +} +#endif /* CONFIG_LIBXENCTRL_DL */ + int xen_kexec_load(struct kexec_info *info) { uint32_t nr_segments = info->nr_segments; |