diff options
Diffstat (limited to 'kexec/kexec-xen.c')
| -rw-r--r-- | kexec/kexec-xen.c | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/kexec/kexec-xen.c b/kexec/kexec-xen.c index c3269554..afcfc5b8 100644 --- a/kexec/kexec-xen.c +++ b/kexec/kexec-xen.c @@ -64,6 +64,33 @@ int __xc_interface_close(xc_interface *xch) } #endif /* CONFIG_LIBXENCTRL_DL */ +int xen_get_kexec_range(int range, uint64_t *start, uint64_t *end) +{ + uint64_t size; + xc_interface *xc; + int rc = -1; + + xc = xc_interface_open(NULL, NULL, 0); + if (!xc) { + fprintf(stderr, "failed to open xen control interface.\n"); + goto out; + } + + rc = xc_kexec_get_range(xc, range, 0, &size, start); + if (rc < 0) { + fprintf(stderr, "failed to get range=%d from hypervisor.\n", range); + goto out_close; + } + + *end = *start + size - 1; + +out_close: + xc_interface_close(xc); + +out: + return rc; +} + #define IDENTMAP_1MiB (1024 * 1024) int xen_kexec_load(struct kexec_info *info) @@ -226,6 +253,11 @@ void xen_kexec_exec(void) #else /* ! HAVE_LIBXENCTRL */ +int xen_get_kexec_range(int range, uint64_t *start, uint64_t *end) +{ + return -1; +} + int xen_kexec_load(struct kexec_info *UNUSED(info)) { return -1; |