[Xen-devel] [PATCH 2 of 4] PoC: libxc+ocaml: add interfaces to manipulate various properties of HVM guests

[Andrew Cooper <andrew.cooper3@xxxxxxxxxx>]

# HG changeset patch
# User Ian Campbell <ian.campbell@xxxxxxxxxx>
# Date 1294742832 0
# Node ID b279ec057736ead1d7061f8ec8a29a8676dd56b4
# Parent  59aaebc4ef6422e5ff4a3ad54d05597e646cfc92
PoC: libxc+ocaml: add interfaces to manipulate various properties of HVM guests

* set timer mode
* set hpet
* set vpt align
* get ACPI
* set/get ACPI S state (allows send s3resume)

Taken from xen-api-libs.hg/xc and adjusted for upstream libxc+ocaml.

Signed-off-by: Ian Campbell <ian.campbell@xxxxxxxxxx>

Rebased on top of xen-unstable.

Signed-off-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>

diff -r 59aaebc4ef64 -r b279ec057736 tools/libxc/xc_domain.c
--- a/tools/libxc/xc_domain.c
+++ b/tools/libxc/xc_domain.c
@@ -1530,6 +1530,38 @@ int xc_domain_set_virq_handler(xc_interf
     return do_domctl(xch, &domctl);
 }
 
+int xc_domain_send_s3resume(xc_interface *xch, unsigned int domid)
+{
+    return xc_set_hvm_param(xch, domid, HVM_PARAM_ACPI_S_STATE, 0);
+}
+
+int xc_domain_set_timer_mode(xc_interface *xch, unsigned int domid, int mode)
+{
+    return xc_set_hvm_param(xch, domid,
+                            HVM_PARAM_TIMER_MODE, (unsigned long) mode);
+}
+
+int xc_domain_set_hpet(xc_interface *xch, unsigned int domid, int hpet)
+{
+    return xc_set_hvm_param(xch, domid, HVM_PARAM_HPET_ENABLED, (unsigned 
long) hpet);
+}
+
+int xc_domain_set_vpt_align(xc_interface *xch, unsigned int domid, int 
vpt_align)
+{
+    return xc_set_hvm_param(xch, domid, HVM_PARAM_HPET_ENABLED, (unsigned 
long) vpt_align);
+}
+
+int xc_domain_get_acpi_s_state(xc_interface *xch, unsigned int domid)
+{
+    int ret;
+    unsigned long value;
+
+    ret = xc_get_hvm_param(xch, domid, HVM_PARAM_ACPI_S_STATE, &value);
+    if (ret != 0)
+        ERROR("get acpi s-state");
+    return value;
+}
+
 /*
  * Local variables:
  * mode: C
diff -r 59aaebc4ef64 -r b279ec057736 tools/libxc/xenctrl.h
--- a/tools/libxc/xenctrl.h
+++ b/tools/libxc/xenctrl.h
@@ -632,6 +632,12 @@ int xc_domain_hvm_setcontext(xc_interfac
                              uint8_t *hvm_ctxt,
                              uint32_t size);
 
+int xc_domain_send_s3resume(xc_interface *xch, unsigned int domid);
+int xc_domain_set_timer_mode(xc_interface *xch, unsigned int domid, int mode);
+int xc_domain_set_hpet(xc_interface *xch, unsigned int domid, int hpet);
+int xc_domain_set_vpt_align(xc_interface *xch, unsigned int domid, int 
vpt_align);
+int xc_domain_get_acpi_s_state(xc_interface *xch, unsigned int domid);
+
 /**
  * This function returns information about the execution context of a
  * particular vcpu of a domain.
diff -r 59aaebc4ef64 -r b279ec057736 tools/ocaml/libs/xc/xenctrl.ml
--- a/tools/ocaml/libs/xc/xenctrl.ml
+++ b/tools/ocaml/libs/xc/xenctrl.ml
@@ -237,6 +237,13 @@ external domain_deassign_device: handle 
 external domain_test_assign_device: handle -> domid -> (int * int * int * int) 
-> bool
        = "stub_xc_domain_test_assign_device"
 
+external domain_set_timer_mode: handle -> domid -> int -> unit = 
"stub_xc_domain_set_timer_mode"
+external domain_set_hpet: handle -> domid -> int -> unit = 
"stub_xc_domain_set_hpet"
+external domain_set_vpt_align: handle -> domid -> int -> unit = 
"stub_xc_domain_set_vpt_align"
+
+external domain_send_s3resume: handle -> domid -> unit = 
"stub_xc_domain_send_s3resume"
+external domain_get_acpi_s_state: handle -> domid -> int = 
"stub_xc_domain_get_acpi_s_state"
+
 (** check if some hvm domain got pv driver or not *)
 external hvm_check_pvdriver: handle -> domid -> bool
        = "stub_xc_hvm_check_pvdriver"
diff -r 59aaebc4ef64 -r b279ec057736 tools/ocaml/libs/xc/xenctrl.mli
--- a/tools/ocaml/libs/xc/xenctrl.mli
+++ b/tools/ocaml/libs/xc/xenctrl.mli
@@ -142,6 +142,14 @@ external domain_deassign_device: handle 
 external domain_test_assign_device: handle -> domid -> (int * int * int * int) 
-> bool
        = "stub_xc_domain_test_assign_device"
 
+external domain_set_timer_mode: handle -> domid -> int -> unit = 
"stub_xc_domain_set_timer_mode"
+external domain_set_hpet: handle -> domid -> int -> unit = 
"stub_xc_domain_set_hpet"
+external domain_set_vpt_align: handle -> domid -> int -> unit = 
"stub_xc_domain_set_vpt_align"
+
+external domain_send_s3resume: handle -> domid -> unit
+  = "stub_xc_domain_send_s3resume"
+external domain_get_acpi_s_state: handle -> domid -> int = 
"stub_xc_domain_get_acpi_s_state"
+
 external hvm_check_pvdriver : handle -> domid -> bool
   = "stub_xc_hvm_check_pvdriver"
 external version : handle -> version = "stub_xc_version_version"
diff -r 59aaebc4ef64 -r b279ec057736 tools/ocaml/libs/xc/xenctrl_stubs.c
--- a/tools/ocaml/libs/xc/xenctrl_stubs.c
+++ b/tools/ocaml/libs/xc/xenctrl_stubs.c
@@ -1194,6 +1194,59 @@ CAMLprim value stub_xc_watchdog(value xc
        CAMLreturn(Val_int(ret));
 }
 
+CAMLprim value stub_xc_domain_get_acpi_s_state(value xch, value domid)
+{
+        CAMLparam2(xch, domid);
+        int ret;
+
+        ret = xc_domain_get_acpi_s_state(_H(xch), _D(domid));
+        if (ret < 0)
+                failwith_xc(_H(xch));
+
+        CAMLreturn(Val_int(ret));
+}
+
+CAMLprim value stub_xc_domain_send_s3resume(value xch, value domid)
+{
+        CAMLparam2(xch, domid);
+        xc_domain_send_s3resume(_H(xch), _D(domid));
+        CAMLreturn(Val_unit);
+}
+
+
+CAMLprim value stub_xc_domain_set_timer_mode(value xch, value id, value mode)
+{
+        CAMLparam3(xch, id, mode);
+        int ret;
+
+        ret = xc_domain_set_timer_mode(_H(xch), _D(id), Int_val(mode));
+        if (ret < 0)
+                failwith_xc(_H(xch));
+        CAMLreturn(Val_unit);
+}
+
+CAMLprim value stub_xc_domain_set_hpet(value xch, value id, value mode)
+{
+        CAMLparam3(xch, id, mode);
+        int ret;
+
+        ret = xc_domain_set_hpet(_H(xch), _D(id), Int_val(mode));
+        if (ret < 0)
+                failwith_xc(_H(xch));
+        CAMLreturn(Val_unit);
+}
+
+CAMLprim value stub_xc_domain_set_vpt_align(value xch, value id, value mode)
+{
+        CAMLparam3(xch, id, mode);
+        int ret;
+
+        ret = xc_domain_set_vpt_align(_H(xch), _D(id), Int_val(mode));
+        if (ret < 0)
+                failwith_xc(_H(xch));
+        CAMLreturn(Val_unit);
+}
+
 /*
  * Local variables:
  *  indent-tabs-mode: t

_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxx
http://lists.xen.org/xen-devel