Signed-off-by: Andrew Cooper <[email protected]>
---
CC: Ian Campbell <[email protected]>
CC: Ian Jackson <[email protected]>
CC: Wei Liu <[email protected]>
CC: David Scott <[email protected]>
CC: Rob Hoes <[email protected]>
---
tools/libxc/include/xenctrl.h | 2 ++
tools/libxc/xc_misc.c | 14 ++++++++++++++
tools/ocaml/libs/xc/xenctrl.ml | 2 ++
tools/ocaml/libs/xc/xenctrl.mli | 2 ++
tools/ocaml/libs/xc/xenctrl_stubs.c | 20 ++++++++++++++++++++
5 files changed, 40 insertions(+)
diff --git a/tools/libxc/include/xenctrl.h b/tools/libxc/include/xenctrl.h
index b44aec7..401a6f8 100644
--- a/tools/libxc/include/xenctrl.h
+++ b/tools/libxc/include/xenctrl.h
@@ -2843,6 +2843,8 @@ int xc_psr_cat_get_domain_data(xc_interface *xch,
uint32_t domid,
int xc_psr_cat_get_l3_info(xc_interface *xch, uint32_t socket,
uint32_t *cos_max, uint32_t *cbm_len);
+int xc_get_levelling_caps(xc_interface *xch, uint64_t *caps);
+
int xc_get_featureset(xc_interface *xch, uint32_t index,
uint32_t *nr_features, uint32_t *featureset);
#endif
diff --git a/tools/libxc/xc_misc.c b/tools/libxc/xc_misc.c
index 4d7af3d..7707a70 100644
--- a/tools/libxc/xc_misc.c
+++ b/tools/libxc/xc_misc.c
@@ -745,6 +745,20 @@ int xc_get_featureset(xc_interface *xch, uint32_t index,
return ret;
}
+int xc_get_levelling_caps(xc_interface *xch, uint64_t *caps)
+{
+ DECLARE_SYSCTL;
+ int ret;
+
+ sysctl.cmd = XEN_SYSCTL_get_levelling_caps;
+ ret = do_sysctl(xch, &sysctl);
+
+ if ( !ret )
+ *caps = sysctl.u.levelling.caps;
+
+ return ret;
+}
+
/*
* Local variables:
* mode: C
diff --git a/tools/ocaml/libs/xc/xenctrl.ml b/tools/ocaml/libs/xc/xenctrl.ml
index 15c7eb0..d651533 100644
--- a/tools/ocaml/libs/xc/xenctrl.ml
+++ b/tools/ocaml/libs/xc/xenctrl.ml
@@ -247,6 +247,8 @@ external version_capabilities: handle -> string =
type featureset_index = Featureset_host | Featureset_pv | Featureset_hvm
external get_featureset : handle -> featureset_index -> int64 array =
"stub_xc_get_featureset"
+external get_levelling_caps : handle -> int64 = "stub_xc_get_levelling_caps"
+
external watchdog : handle -> int -> int32 -> int
= "stub_xc_watchdog"
diff --git a/tools/ocaml/libs/xc/xenctrl.mli b/tools/ocaml/libs/xc/xenctrl.mli
index 42d6199..1342a5e 100644
--- a/tools/ocaml/libs/xc/xenctrl.mli
+++ b/tools/ocaml/libs/xc/xenctrl.mli
@@ -152,6 +152,8 @@ external version_capabilities : handle -> string
type featureset_index = Featureset_host | Featureset_pv | Featureset_hvm
external get_featureset : handle -> featureset_index -> int64 array =
"stub_xc_get_featureset"
+external get_levelling_caps : handle -> int64 = "stub_xc_get_levelling_caps"
+
type core_magic = Magic_hvm | Magic_pv
type core_header = {
xch_magic : core_magic;
diff --git a/tools/ocaml/libs/xc/xenctrl_stubs.c
b/tools/ocaml/libs/xc/xenctrl_stubs.c
index a47473b..3ae2060 100644
--- a/tools/ocaml/libs/xc/xenctrl_stubs.c
+++ b/tools/ocaml/libs/xc/xenctrl_stubs.c
@@ -1255,6 +1255,26 @@ CAMLprim value stub_xc_get_featureset(value xch, value
idx)
CAMLreturn(bitmap_val);
}
+CAMLprim value stub_xc_get_levelling_caps(value xch)
+{
+ CAMLparam1(xch);
+
+ /* Safe, because of the global ocaml lock. */
+ static uint64_t caps;
+ static bool have_caps;
+
+ if (!have_caps)
+ {
+ int ret = xc_get_levelling_caps(_H(xch), &caps);
+
+ if (ret || (caps > INT64_MAX))
+ failwith_xc(_H(xch));
+ have_caps = true;
+ }
+
+ CAMLreturn(caml_copy_int64(caps));
+}
+
CAMLprim value stub_xc_watchdog(value xch, value domid, value timeout)
{
CAMLparam3(xch, domid, timeout);
--
2.1.4
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