diff options
Diffstat (limited to 'tools/libxc/xc_domain.c')
| -rw-r--r-- | tools/libxc/xc_domain.c | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/tools/libxc/xc_domain.c b/tools/libxc/xc_domain.c index 480ce91500..299c9073b7 100644 --- a/tools/libxc/xc_domain.c +++ b/tools/libxc/xc_domain.c @@ -775,6 +775,36 @@ int xc_domain_add_to_physmap(xc_interface *xch, return do_memory_op(xch, XENMEM_add_to_physmap, &xatp, sizeof(xatp)); } +int xc_domain_claim_pages(xc_interface *xch, + uint32_t domid, + unsigned long nr_pages) +{ + int err; + struct xen_memory_reservation reservation = { + .nr_extents = nr_pages, + .extent_order = 0, + .mem_flags = 0, /* no flags */ + .domid = domid + }; + + set_xen_guest_handle(reservation.extent_start, HYPERCALL_BUFFER_NULL); + + err = do_memory_op(xch, XENMEM_claim_pages, &reservation, sizeof(reservation)); + /* Ignore it if the hypervisor does not support the call. */ + if (err == -1 && errno == ENOSYS) + err = errno = 0; + return err; +} +unsigned long xc_domain_get_outstanding_pages(xc_interface *xch) +{ + long ret = do_memory_op(xch, XENMEM_get_outstanding_pages, NULL, 0); + + /* Ignore it if the hypervisor does not support the call. */ + if (ret == -1 && errno == ENOSYS) + ret = errno = 0; + return ret; +} + int xc_domain_populate_physmap(xc_interface *xch, uint32_t domid, unsigned long nr_extents, |