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[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [xen staging] tools/libs: move official headers to common directory
commit 4664034cdc720a52913bc26358240bb9d3798527
Author: Juergen Gross <jgross@xxxxxxxx>
AuthorDate: Mon Oct 19 17:27:54 2020 +0200
Commit: Ian Jackson <iwj@xxxxxxxxxxxxxx>
CommitDate: Fri Oct 23 15:50:51 2020 +0100
tools/libs: move official headers to common directory
Instead of each library having an own include directory move the
official headers to tools/include instead. This will drop the need to
link those headers to tools/include and there is no need any longer
to have library-specific include paths when building Xen.
While at it remove setting of the unused variable
PKG_CONFIG_CFLAGS_LOCAL in libs/*/Makefile.
Signed-off-by: Juergen Gross <jgross@xxxxxxxx>
Acked-by: Christian Lindig <christian.lindig@xxxxxxxxxx>
Tested-by: Bertrand Marquis <bertrand.marquis@xxxxxxx>
Acked-by: Ian Jackson <iwj@xxxxxxxxxxxxxx>
---
.gitignore | 5 +-
stubdom/mini-os.mk | 2 +-
tools/Rules.mk | 5 +-
tools/include/Makefile | 6 +
tools/include/libxenvchan.h | 176 ++
tools/include/libxl.h | 2732 ++++++++++++++++++++
tools/include/libxl_event.h | 632 +++++
tools/include/libxl_json.h | 96 +
tools/include/libxl_utils.h | 194 ++
tools/include/libxl_uuid.h | 80 +
tools/include/libxlutil.h | 136 +
tools/include/xencall.h | 143 +
tools/include/xenctrl.h | 2666 +++++++++++++++++++
tools/include/xenctrl_compat.h | 183 ++
tools/include/xendevicemodel.h | 378 +++
tools/include/xenevtchn.h | 174 ++
tools/include/xenforeignmemory.h | 192 ++
tools/include/xengnttab.h | 470 ++++
tools/include/xenguest.h | 723 ++++++
tools/include/xenhypfs.h | 95 +
tools/include/xenstat.h | 197 ++
tools/include/xenstore-compat/xs.h | 2 +
tools/include/xenstore-compat/xs_lib.h | 2 +
tools/include/xenstore.h | 281 ++
tools/include/xenstore_lib.h | 94 +
tools/include/xentoolcore.h | 88 +
tools/include/xentoolcore_internal.h | 158 ++
tools/include/xentoollog.h | 146 ++
tools/libs/call/Makefile | 3 -
tools/libs/call/include/xencall.h | 143 -
tools/libs/ctrl/Makefile | 3 -
tools/libs/ctrl/include/xenctrl.h | 2666 -------------------
tools/libs/ctrl/include/xenctrl_compat.h | 183 --
tools/libs/devicemodel/Makefile | 3 -
tools/libs/devicemodel/include/xendevicemodel.h | 378 ---
tools/libs/evtchn/Makefile | 2 -
tools/libs/evtchn/include/xenevtchn.h | 174 --
tools/libs/foreignmemory/Makefile | 3 -
.../libs/foreignmemory/include/xenforeignmemory.h | 192 --
tools/libs/gnttab/Makefile | 3 -
tools/libs/gnttab/include/xengnttab.h | 470 ----
tools/libs/guest/Makefile | 3 -
tools/libs/guest/include/xenguest.h | 723 ------
tools/libs/hypfs/Makefile | 3 -
tools/libs/hypfs/include/xenhypfs.h | 95 -
tools/libs/libs.mk | 10 +-
tools/libs/light/Makefile | 28 +-
tools/libs/light/include/libxl.h | 2732 --------------------
tools/libs/light/include/libxl_event.h | 632 -----
tools/libs/light/include/libxl_json.h | 96 -
tools/libs/light/include/libxl_utils.h | 194 --
tools/libs/light/include/libxl_uuid.h | 80 -
tools/libs/stat/Makefile | 2 -
tools/libs/stat/include/xenstat.h | 197 --
tools/libs/store/Makefile | 11 +-
tools/libs/store/include/compat/xs.h | 2 -
tools/libs/store/include/compat/xs_lib.h | 2 -
tools/libs/store/include/xenstore.h | 281 --
tools/libs/toolcore/Makefile | 9 +-
tools/libs/toolcore/include/xentoolcore.h | 88 -
tools/libs/toolcore/include/xentoolcore_internal.h | 158 --
tools/libs/toollog/Makefile | 2 -
tools/libs/toollog/include/xentoollog.h | 146 --
tools/libs/util/Makefile | 3 -
tools/libs/util/include/libxlutil.h | 136 -
tools/libs/vchan/Makefile | 3 -
tools/libs/vchan/include/libxenvchan.h | 176 --
tools/ocaml/libs/xentoollog/Makefile | 2 +-
tools/ocaml/libs/xentoollog/genlevels.py | 2 +-
tools/xenstore/xenstore_lib.h | 94 -
70 files changed, 10074 insertions(+), 10115 deletions(-)
diff --git a/.gitignore b/.gitignore
index b30a779f9f..b169d78ed7 100644
--- a/.gitignore
+++ b/.gitignore
@@ -144,7 +144,6 @@ tools/libs/light/test_timedereg
tools/libs/light/test_fdderegrace
tools/libs/light/tmp.*
tools/libs/light/xenlight.pc
-tools/libs/light/include/_*.h
tools/libs/stat/_paths.h
tools/libs/stat/headers.chk
tools/libs/stat/libxenstat.map
@@ -154,7 +153,6 @@ tools/libs/store/list.h
tools/libs/store/utils.h
tools/libs/store/xenstore.pc
tools/libs/store/xs_lib.c
-tools/libs/store/include/xenstore_lib.h
tools/libs/util/*.pc
tools/libs/util/_paths.h
tools/libs/util/libxlu_cfg_y.output
@@ -232,7 +230,8 @@ tools/hotplug/Linux/xendomains
tools/hotplug/NetBSD/rc.d/xencommons
tools/hotplug/NetBSD/rc.d/xendriverdomain
tools/include/acpi
-tools/include/*.h
+tools/include/_libxl*.h
+tools/include/_xentoolcore_list.h
tools/include/xen/*
tools/include/xen-xsm/*
tools/include/xen-foreign/*.(c|h|size)
diff --git a/stubdom/mini-os.mk b/stubdom/mini-os.mk
index 420e9a8771..7e4968e026 100644
--- a/stubdom/mini-os.mk
+++ b/stubdom/mini-os.mk
@@ -5,7 +5,7 @@
# XEN_ROOT
# MINIOS_TARGET_ARCH
-XENSTORE_CPPFLAGS = -isystem $(XEN_ROOT)/tools/libs/store/include
+XENSTORE_CPPFLAGS = -isystem $(XEN_ROOT)/tools/include
TOOLCORE_PATH = $(XEN_ROOT)/stubdom/libs-$(MINIOS_TARGET_ARCH)/toolcore
TOOLLOG_PATH = $(XEN_ROOT)/stubdom/libs-$(MINIOS_TARGET_ARCH)/toollog
EVTCHN_PATH = $(XEN_ROOT)/stubdom/libs-$(MINIOS_TARGET_ARCH)/evtchn
diff --git a/tools/Rules.mk b/tools/Rules.mk
index f3e0078927..f61da81f4a 100644
--- a/tools/Rules.mk
+++ b/tools/Rules.mk
@@ -87,7 +87,7 @@ endif
define LIB_defs
FILENAME_$(1) ?= xen$(1)
XEN_libxen$(1) = $$(XEN_ROOT)/tools/libs/$(1)
- CFLAGS_libxen$(1) = -I$$(XEN_libxen$(1))/include $$(CFLAGS_xeninclude)
+ CFLAGS_libxen$(1) = $$(CFLAGS_xeninclude)
SHDEPS_libxen$(1) = $$(foreach use,$$(USELIBS_$(1)),$$(SHLIB_libxen$$(use)))
LDLIBS_libxen$(1) = $$(SHDEPS_libxen$(1))
$$(XEN_libxen$(1))/lib$$(FILENAME_$(1))$$(libextension)
SHLIB_libxen$(1) = $$(SHDEPS_libxen$(1)) -Wl,-rpath-link=$$(XEN_libxen$(1))
@@ -97,8 +97,7 @@ $(foreach lib,$(LIBS_LIBS),$(eval $(call LIB_defs,$(lib))))
# code which compiles against libxenctrl get __XEN_TOOLS__ and
# therefore sees the unstable hypercall interfaces.
-CFLAGS_libxenctrl += $(CFLAGS_libxentoollog) $(CFLAGS_libxenforeignmemory)
$(CFLAGS_libxendevicemodel) -D__XEN_TOOLS__
-CFLAGS_libxenguest += $(CFLAGS_libxenevtchn) $(CFLAGS_libxenforeignmemory)
+CFLAGS_libxenctrl += -D__XEN_TOOLS__
ifeq ($(CONFIG_Linux),y)
LDLIBS_libxenstore += -ldl
diff --git a/tools/include/Makefile b/tools/include/Makefile
index 4d4313b60d..4d4ec5f974 100644
--- a/tools/include/Makefile
+++ b/tools/include/Makefile
@@ -1,6 +1,12 @@
XEN_ROOT = $(CURDIR)/../..
include $(XEN_ROOT)/tools/Rules.mk
+# Caution: some tools/libs/*/Makefile generate header files directly in
+# tools/include, and they do the [un]install actions for those, too.
+# In case other headers need to be built cwin tools/include this should be
+# taken into account, i.e. there should be no rules added here for generating
+# any tools/include/*.h files.
+
# Relative to $(XEN_ROOT)/xen/xsm/flask
FLASK_H_DEPEND := policy/initial_sids
diff --git a/tools/include/libxenvchan.h b/tools/include/libxenvchan.h
new file mode 100644
index 0000000000..d6010b145d
--- /dev/null
+++ b/tools/include/libxenvchan.h
@@ -0,0 +1,176 @@
+/**
+ * @file
+ * @section AUTHORS
+ *
+ * Copyright (C) 2010 Rafal Wojtczuk <rafal@xxxxxxxxxxxxxxxxxxxxxx>
+ *
+ * Authors:
+ * Rafal Wojtczuk <rafal@xxxxxxxxxxxxxxxxxxxxxx>
+ * Daniel De Graaf <dgdegra@xxxxxxxxxxxxx>
+ *
+ * @section LICENSE
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; If not, see
<http://www.gnu.org/licenses/>.
+ *
+ * @section DESCRIPTION
+ *
+ * Originally borrowed from the Qubes OS Project, http://www.qubes-os.org,
+ * this code has been substantially rewritten to use the gntdev and gntalloc
+ * devices instead of raw MFNs and map_foreign_range.
+ *
+ * This is a library for inter-domain communication. A standard Xen ring
+ * buffer is used, with a datagram-based interface built on top. The grant
+ * reference and event channels are shared in XenStore under the path
+ * /local/domain/<srv-id>/data/vchan/<cli-id>/<port>/{ring-ref,event-channel}
+ *
+ * The ring.h macros define an asymmetric interface to a shared data structure
+ * that assumes all rings reside in a single contiguous memory space. This is
+ * not suitable for vchan because the interface to the ring is symmetric
except
+ * for the setup. Unlike the producer-consumer rings defined in ring.h, the
+ * size of the rings used in vchan are determined at execution time instead of
+ * compile time, so the macros in ring.h cannot be used to access the rings.
+ */
+
+#include <xen/io/libxenvchan.h>
+#include <xen/xen.h>
+#include <xen/sys/evtchn.h>
+#include <xenevtchn.h>
+#include <xengnttab.h>
+
+/* Callers who don't care don't need to #include <xentoollog.h> */
+struct xentoollog_logger;
+
+struct libxenvchan_ring {
+ /* Pointer into the shared page. Offsets into buffer. */
+ struct ring_shared* shr;
+ /* ring data; may be its own shared page(s) depending on order */
+ void* buffer;
+ /**
+ * The size of the ring is (1 << order); offsets wrap around when they
+ * exceed this. This copy is required because we can't trust the order
+ * in the shared page to remain constant.
+ */
+ int order;
+};
+
+/**
+ * struct libxenvchan: control structure passed to all library calls
+ */
+struct libxenvchan {
+ /* Mapping handle for shared ring page */
+ union {
+ xengntshr_handle *gntshr; /* for server */
+ xengnttab_handle *gnttab; /* for client */
+ };
+ /* Pointer to shared ring page */
+ struct vchan_interface *ring;
+ /* event channel interface */
+ xenevtchn_handle *event;
+ uint32_t event_port;
+ /* informative flags: are we acting as server? */
+ int is_server:1;
+ /* true if server remains active when client closes (allows
reconnection) */
+ int server_persist:1;
+ /* true if operations should block instead of returning 0 */
+ int blocking:1;
+ /* communication rings */
+ struct libxenvchan_ring read, write;
+};
+
+/**
+ * Set up a vchan, including granting pages
+ * @param logger Logger for libxc errors
+ * @param domain The peer domain that will be connecting
+ * @param xs_path Base xenstore path for storing ring/event data
+ * @param send_min The minimum size (in bytes) of the send ring (left)
+ * @param recv_min The minimum size (in bytes) of the receive ring (right)
+ * @return The structure, or NULL in case of an error
+ */
+struct libxenvchan *libxenvchan_server_init(struct xentoollog_logger *logger,
+ int domain, const char* xs_path,
+ size_t read_min, size_t write_min);
+/**
+ * Connect to an existing vchan. Note: you can reconnect to an existing vchan
+ * safely, however no locking is performed, so you must prevent multiple
clients
+ * from connecting to a single server.
+ *
+ * @param logger Logger for libxc errors
+ * @param domain The peer domain to connect to
+ * @param xs_path Base xenstore path for storing ring/event data
+ * @return The structure, or NULL in case of an error
+ */
+struct libxenvchan *libxenvchan_client_init(struct xentoollog_logger *logger,
+ int domain, const char* xs_path);
+/**
+ * Close a vchan. This deallocates the vchan and attempts to free its
+ * resources. The other side is notified of the close, but can still read any
+ * data pending prior to the close.
+ */
+void libxenvchan_close(struct libxenvchan *ctrl);
+
+/**
+ * Packet-based receive: always reads exactly $size bytes.
+ * @param ctrl The vchan control structure
+ * @param data Buffer for data that was read
+ * @param size Size of the buffer and amount of data to read
+ * @return -1 on error, 0 if nonblocking and insufficient data is available,
or $size
+ */
+int libxenvchan_recv(struct libxenvchan *ctrl, void *data, size_t size);
+/**
+ * Stream-based receive: reads as much data as possible.
+ * @param ctrl The vchan control structure
+ * @param data Buffer for data that was read
+ * @param size Size of the buffer
+ * @return -1 on error, otherwise the amount of data read (which may be zero if
+ * the vchan is nonblocking)
+ */
+int libxenvchan_read(struct libxenvchan *ctrl, void *data, size_t size);
+/**
+ * Packet-based send: send entire buffer if possible
+ * @param ctrl The vchan control structure
+ * @param data Buffer for data to send
+ * @param size Size of the buffer and amount of data to send
+ * @return -1 on error, 0 if nonblocking and insufficient space is available,
or $size
+ */
+int libxenvchan_send(struct libxenvchan *ctrl, const void *data, size_t size);
+/**
+ * Stream-based send: send as much data as possible.
+ * @param ctrl The vchan control structure
+ * @param data Buffer for data to send
+ * @param size Size of the buffer
+ * @return -1 on error, otherwise the amount of data sent (which may be zero if
+ * the vchan is nonblocking)
+ */
+int libxenvchan_write(struct libxenvchan *ctrl, const void *data, size_t size);
+/**
+ * Waits for reads or writes to unblock, or for a close
+ */
+int libxenvchan_wait(struct libxenvchan *ctrl);
+/**
+ * Returns the event file descriptor for this vchan. When this FD is readable,
+ * libxenvchan_wait() will not block, and the state of the vchan has changed
since
+ * the last invocation of libxenvchan_wait().
+ */
+int libxenvchan_fd_for_select(struct libxenvchan *ctrl);
+/**
+ * Query the state of the vchan shared page:
+ * return 0 when one side has called libxenvchan_close() or crashed
+ * return 1 when both sides are open
+ * return 2 [server only] when no client has yet connected
+ */
+int libxenvchan_is_open(struct libxenvchan* ctrl);
+/** Amount of data ready to read, in bytes */
+int libxenvchan_data_ready(struct libxenvchan *ctrl);
+/** Amount of data it is possible to send without blocking */
+int libxenvchan_buffer_space(struct libxenvchan *ctrl);
diff --git a/tools/include/libxl.h b/tools/include/libxl.h
new file mode 100644
index 0000000000..1ea5b4f446
--- /dev/null
+++ b/tools/include/libxl.h
@@ -0,0 +1,2732 @@
+/*
+ * Copyright (C) 2009 Citrix Ltd.
+ * Author Vincent Hanquez <vincent.hanquez@xxxxxxxxxxxxx>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published
+ * by the Free Software Foundation; version 2.1 only. with the special
+ * exception on linking described in file LICENSE.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Lesser General Public License for more details.
+ */
+
+/*
+ * libxl API compatibility
+ *
+ * From Xen 4.2 onwards the API of libxl will be maintained in a
+ * stable manner. This means that it should be possible to write an
+ * application against the API provided by libxl in Xen 4.2 and expect
+ * that it will continue to compile against future versions of Xen
+ * without source modification.
+ *
+ * In order to make such compatibility possible it is required that
+ * application which want to be exposed to a particular API #define
+ * LIBXL_API_VERSION before including libxl.h or any other libxl
+ * header. The syntax of the LIBXL_API_VERSION is:
+ * 0xVVSSEE
+ * where ($(XEN_xxx) from xen/Makefile):
+ * VV is the Xen major release number, $(XEN_VERSION)
+ * SS is the Xen sub version number, $(XEN_SUBVERSION)
+ * EE is the Xen extra version digit, first numeric part of
+ * $(XEN_EXTRAVERSION) not including the leading "."
+ * For example the first stable API version, supported by Xen 4.2.0,
+ * is 0x040200.
+ *
+ * Lack of LIBXL_API_VERSION means "the latest" which will
+ * change. Specifying an unknown LIBXL_API_VERSION will result in a
+ * compile time error.
+ *
+ * Identical versions of the libxl API will represented by the version
+ * containing the earliest instance of that API. e.g. if 4.2.0 and
+ * 4.3.0 contain an identical libxl API then only LIBXL_API_VERSION
+ * 0x040200 will be valid.
+ *
+ * We will try especially hard to avoid changing the API during a
+ * stable series, i.e. it should be unusual for the last byte of
+ * LIBXL_API_VERSION to be non-zero.
+ *
+ * In the event that a change is required which cannot be made
+ * backwards compatible in this manner a #define of the form
+ * LIBXL_HAVE_<interface> will always be added in order to make it
+ * possible to write applications which build against any version of
+ * libxl. Such changes are expected to be exceptional and used as a
+ * last resort. The barrier for backporting such a change to a stable
+ * branch will be very high.
+ *
+ * These guarantees apply only to stable releases of Xen. When an
+ * incompatible change is made in the unstable tree then
+ * LIBXL_API_VERSION will be bumped to the next expected stable
+ * release number on the first such change only. Applications which
+ * want to support building against Xen unstable are expected to track
+ * API changes in that tree until it is released as a stable release.
+ *
+ * API compatibility will be maintained for all versions of Xen using
+ * the same $(XEN_VERSION) (e.g. throughout a major release).
+ */
+
+/* LIBXL_HAVE_PHYSINFO_CAP_PV
+ *
+ * If this is defined, libxl_physinfo has a "cap_pv" field.
+ */
+#define LIBXL_HAVE_PHYSINFO_CAP_PV 1
+
+/* LIBXL_HAVE_CONSOLE_NOTIFY_FD
+ *
+ * If this is defined, libxl_console_exec and
+ * libxl_primary_console_exe take a notify_fd parameter. That
+ * parameter will be used to notify the caller that the console is connected.
+ */
+#define LIBXL_HAVE_CONSOLE_NOTIFY_FD 1
+
+/* LIBXL_HAVE_CONST_COPY_AND_LENGTH_FUNCTIONS
+ *
+ * If this is defined, the copy functions have constified src parameter and the
+ * length functions accept constified parameter.
+ */
+#define LIBXL_HAVE_CONST_COPY_AND_LENGTH_FUNCTIONS 1
+
+/* LIBXL_HAVE_DOMAIN_NEED_MEMORY_CONST_B_INFO
+ *
+ * If this is defined, libxl_domain_need_memory no longer modifies
+ * the b_info paseed in.
+ */
+#define LIBXL_HAVE_DOMAIN_NEED_MEMORY_CONST_B_INFO 1
+
+/* LIBXL_HAVE_VNUMA
+ *
+ * If this is defined the type libxl_vnode_info exists, and a
+ * field 'vnuma_nodes' is present in libxl_domain_build_info.
+ */
+#define LIBXL_HAVE_VNUMA 1
+
+/* LIBXL_HAVE_USERDATA_UNLINK
+ *
+ * If it is defined, libxl has a library function called
+ * libxl_userdata_unlink.
+ */
+#define LIBXL_HAVE_USERDATA_UNLINK 1
+
+/* LIBXL_HAVE_CPUPOOL_QUALIFIER_TO_CPUPOOLID
+ *
+ * If this is defined, libxl has a library function called
+ * libxl_cpupool_qualifier_to_cpupoolid, which takes in a CPU pool
+ * qualifier in the form of number or string, then returns the ID of
+ * that CPU pool.
+ */
+#define LIBXL_HAVE_CPUPOOL_QUALIFIER_TO_CPUPOOLID 1
+
+/* LIBXL_HAVE_CPUPOOL_ADD_REM_CPUMAP
+ *
+ * If this is defined, libxl has two library functions called
+ * libxl_cpupool_cpuadd_cpumap and libxl_cpupool_cpuremove_cpumap,
+ * which allow to add to or remove from a cpupool all the cpus
+ * specified in a bitmap.
+ */
+#define LIBXL_HAVE_CPUPOOL_ADD_REM_CPUMAP 1
+
+/*
+ *
+ * LIBXL_HAVE_BITMAP_AND_OR
+ *
+ * If this is defined, libxl has two library functions, libxl_bitmap_and
+ * and libxl_bitmap_or to compute the logical and and or of two bitmaps
+ */
+#define LIBXL_HAVE_BITMAP_AND_OR 1
+
+/*
+ * LIBXL_HAVE_FIRMWARE_PASSTHROUGH indicates the feature for
+ * passing in SMBIOS and ACPI firmware to HVM guests is present
+ * in the library.
+ */
+#define LIBXL_HAVE_FIRMWARE_PASSTHROUGH 1
+
+/*
+ * LIBXL_HAVE_DOMAIN_NODEAFFINITY indicates that a 'nodemap' field
+ * (of libxl_bitmap type) is present in libxl_domain_build_info,
+ * containing the node-affinity for the domain.
+ */
+#define LIBXL_HAVE_DOMAIN_NODEAFFINITY 1
+
+/*
+ * LIBXL_HAVE_PVUSB indicates functions for plugging in USB devices
+ * through pvusb -- both hotplug and at domain creation time..
+ */
+#define LIBXL_HAVE_PVUSB 1
+
+/*
+ * LIBXL_HAVE_BUILDINFO_HVM_VENDOR_DEVICE indicates that the
+ * libxl_vendor_device field is present in the hvm sections of
+ * libxl_domain_build_info. This field tells libxl which
+ * flavour of xen-pvdevice to enable in QEMU.
+ */
+#define LIBXL_HAVE_BUILDINFO_HVM_VENDOR_DEVICE 1
+
+/*
+ * The libxl_domain_build_info has the event_channels field.
+ */
+#define LIBXL_HAVE_BUILDINFO_EVENT_CHANNELS 1
+
+/*
+ * libxl_domain_build_info has the u.hvm.ms_vm_genid field.
+ */
+#define LIBXL_HAVE_BUILDINFO_HVM_MS_VM_GENID 1
+
+/*
+ * LIBXL_HAVE_VCPUINFO_SOFT_AFFINITY indicates that a 'cpumap_soft'
+ * field (of libxl_bitmap type) is present in libxl_vcpuinfo,
+ * containing the soft affinity of a vcpu.
+ */
+#define LIBXL_HAVE_VCPUINFO_SOFT_AFFINITY 1
+
+/*
+ * LIBXL_HAVE_SET_VCPUAFFINITY_FORCE indicates that the
+ * libxl_set_vcpuaffinity_force() library call is available.
+ */
+#define LIBXL_HAVE_SET_VCPUAFFINITY_FORCE 1
+
+/*
+ * LIBXL_HAVE_DEVICE_DISK_DIRECT_IO_SAFE indicates that a
+ * 'direct_io_safe' field (of boolean type) is present in
+ * libxl_device_disk.
+ */
+#define LIBXL_HAVE_DEVICE_DISK_DIRECT_IO_SAFE 1
+
+/*
+ * The libxl_device_disk has the discard_enable field.
+ */
+#define LIBXL_HAVE_LIBXL_DEVICE_DISK_DISCARD_ENABLE 1
+
+/*
+ * LIBXL_HAVE_BUILDINFO_IOMEM_START_GFN indicates that it is possible
+ * to specify the start guest frame number used to map a range of I/O
+ * memory machine frame numbers via the 'gfn' field (of type uint64)
+ * of the 'iomem' structure. An array of iomem structures is embedded
+ * in libxl_domain_build_info and used to map the indicated memory
+ * ranges during domain build.
+ */
+#define LIBXL_HAVE_BUILDINFO_IOMEM_START_GFN 1
+
+/*
+ * LIBXL_HAVE_SCHED_RTDS indicates that the RTDS real time scheduler
+ * is available. A 'budget' field added in libxl_domain_sched_params.
+ */
+#define LIBXL_HAVE_SCHED_RTDS 1
+
+/*
+ * LIBXL_HAVE_SCHED_NULL indicates that the 'null' static scheduler
+ * is available.
+ */
+#define LIBXL_HAVE_SCHED_NULL 1
+
+/*
+ * libxl_domain_build_info has u.hvm.viridian_enable and _disable bitmaps
+ * of the specified width.
+ */
+#define LIBXL_HAVE_BUILDINFO_HVM_VIRIDIAN_ENABLE_DISABLE 1
+#define LIBXL_BUILDINFO_HVM_VIRIDIAN_ENABLE_DISABLE_WIDTH 64
+
+/*
+ * libxl_domain_build_info has the u.hvm.mmio_hole_memkb field.
+ */
+#define LIBXL_HAVE_BUILDINFO_HVM_MMIO_HOLE_MEMKB 1
+
+/*
+ * libxl_domain_info returns ERROR_DOMAIN_NOTFOUND if the domain
+ * is not present, instead of ERROR_INVAL.
+ */
+#define LIBXL_HAVE_ERROR_DOMAIN_NOTFOUND 1
+
+/*
+ * libxl_domain_build_info has device_tree and libxl_device_dtdev
+ * exists. This mean Device Tree passthrough is supported for ARM
+ */
+#define LIBXL_HAVE_DEVICETREE_PASSTHROUGH 1
+
+/*
+ * libxl_domain_build_info has device_model_user to specify the user to
+ * run the device model with. See docs/misc/qemu-deprivilege.txt.
+ */
+#define LIBXL_HAVE_DEVICE_MODEL_USER 1
+
+/*
+ * libxl_vcpu_sched_params is used to store per-vcpu params.
+ */
+#define LIBXL_HAVE_VCPU_SCHED_PARAMS 1
+
+/*
+ * LIBXL_HAVE_SCHED_RTDS_VCPU_PARAMS indicates RTDS scheduler
+ * now supports per-vcpu settings.
+ */
+#define LIBXL_HAVE_SCHED_RTDS_VCPU_PARAMS 1
+
+/*
+ * LIBXL_HAVE_SCHED_RTDS_VCPU_EXTRA indicates RTDS scheduler
+ * now supports per-vcpu extratime settings.
+ */
+#define LIBXL_HAVE_SCHED_RTDS_VCPU_EXTRA 1
+
+/*
+ * libxl_domain_build_info has the arm.gic_version field.
+ */
+#define LIBXL_HAVE_BUILDINFO_ARM_GIC_VERSION 1
+
+/*
+ * libxl_domain_build_info has the arch_arm.tee field.
+ */
+#define LIBXL_HAVE_BUILDINFO_ARCH_ARM_TEE 1
+
+/*
+ * LIBXL_HAVE_SOFT_RESET indicates that libxl supports performing
+ * 'soft reset' for domains and there is 'soft_reset' shutdown reason
+ * in enum libxl_shutdown_reason.
+ */
+#define LIBXL_HAVE_SOFT_RESET 1
+
+/*
+ * LIBXL_HAVE_APIC_ASSIST indicates that the 'apic_assist' value
+ * is present in the viridian enlightenment enumeration.
+ */
+#define LIBXL_HAVE_APIC_ASSIST 1
+
+/*
+ * LIBXL_HAVE_BUILD_ID means that libxl_version_info has the extra
+ * field for the hypervisor build_id.
+ */
+#define LIBXL_HAVE_BUILD_ID 1
+
+/*
+ * LIBXL_HAVE_QEMU_MONITOR_COMMAND indiactes the availability of the
+ * libxl_qemu_monitor_command() function.
+ */
+#define LIBXL_HAVE_QEMU_MONITOR_COMMAND 1
+
+/*
+ * LIBXL_HAVE_SCHED_CREDIT2_PARAMS indicates the existance of a
+ * libxl_sched_credit2_params structure, containing Credit2 scheduler
+ * wide parameters (i.e., the ratelimiting value).
+ */
+#define LIBXL_HAVE_SCHED_CREDIT2_PARAMS 1
+
+/*
+ * LIBXL_HAVE_SCHED_CREDIT_MIGR_DELAY indicates that there is a field
+ * in libxl_sched_credit_params called vcpu_migr_delay_us which controls
+ * the resistance of the vCPUs of the cpupool to migrations among pCPUs.
+ */
+#define LIBXL_HAVE_SCHED_CREDIT_MIGR_DELAY
+
+/*
+ * LIBXL_HAVE_VIRIDIAN_CRASH_CTL indicates that the 'crash_ctl' value
+ * is present in the viridian enlightenment enumeration.
+ */
+#define LIBXL_HAVE_VIRIDIAN_CRASH_CTL 1
+
+/*
+ * LIBXL_HAVE_VIRIDIAN_SYNIC indicates that the 'synic' value
+ * is present in the viridian enlightenment enumeration.
+ */
+#define LIBXL_HAVE_VIRIDIAN_SYNIC 1
+
+/*
+ * LIBXL_HAVE_VIRIDIAN_STIMER indicates that the 'stimer' value
+ * is present in the viridian enlightenment enumeration.
+ */
+#define LIBXL_HAVE_VIRIDIAN_STIMER 1
+
+/*
+ * LIBXL_HAVE_VIRIDIAN_HCALL_IPI indicates that the 'hcall_ipi' value
+ * is present in the viridian enlightenment enumeration.
+ */
+#define LIBXL_HAVE_VIRIDIAN_HCALL_IPI 1
+
+/*
+ * LIBXL_HAVE_BUILDINFO_HVM_ACPI_LAPTOP_SLATE indicates that
+ * libxl_domain_build_info has the u.hvm.acpi_laptop_slate field.
+ */
+#define LIBXL_HAVE_BUILDINFO_HVM_ACPI_LAPTOP_SLATE 1
+
+/*
+ * LIBXL_HAVE_P9S indicates that the p9 field in IDL has been changed to p9s
+ */
+#define LIBXL_HAVE_P9S 1
+
+/*
+ * LIBXL_HAVE_BUILDINFO_ARM_VUART indicates that the toolstack supports
virtual UART
+ * for ARM.
+ */
+#define LIBXL_HAVE_BUILDINFO_ARM_VUART 1
+
+/*
+ * LIBXL_HAVE_BUILDINFO_GRANT_LIMITS indicates that libxl_domain_build_info
+ * has the max_grant_frames and max_maptrack_frames fields.
+ */
+#define LIBXL_HAVE_BUILDINFO_GRANT_LIMITS 1
+
+#define LIBXL_MAX_GRANT_DEFAULT (~(uint32_t)0)
+#define LIBXL_MAX_GRANT_FRAMES_DEFAULT 32 /* deprecated */
+#define LIBXL_MAX_MAPTRACK_FRAMES_DEFAULT 1024 /* deprecated */
+/*
+ * LIBXL_HAVE_BUILDINFO_GRANT_DEFAULT indicates that the default
+ * values of max_grant_frames and max_maptrack_frames fields in
+ * libxl_domain_build_info are the special sentinel value
+ * LIBXL_MAX_GRANT_DEFAULT rather than the fixed values above.
+ * This means to use the hypervisor's default.
+ */
+#define LIBXL_HAVE_BUILDINFO_GRANT_DEFAULT 1
+
+/*
+ * LIBXL_HAVE_BUILDINFO_* indicates that libxl_domain_build_info has
+ * the field represented by the '*'. The original position of those
+ * fields is:
+ * - u.hvm.timer_mode
+ * - u.hvm.apic
+ * - u.hvm.nested_hvm
+ * - u.pv.bootloader
+ * - u.pv.bootloader_args
+ */
+#define LIBXL_HAVE_BUILDINFO_TIMER_MODE 1
+#define LIBXL_HAVE_BUILDINFO_APIC 1
+#define LIBXL_HAVE_BUILDINFO_NESTED_HVM 1
+#define LIBXL_HAVE_BUILDINFO_BOOTLOADER 1
+#define LIBXL_HAVE_BUILDINFO_BOOTLOADER_ARGS 1
+
+/*
+ * LIBXL_HAVE_EXTENDED_VKB indicates that libxl_device_vkb has extended fields:
+ * - unique_id;
+ * - feature_disable_keyboard;
+ * - feature_disable_pointer;
+ * - feature_abs_pointer;
+ * - feature_raw_pointer;
+ * - feature_multi_touch;
+ * - width;
+ * - height;
+ * - multi_touch_width;
+ * - multi_touch_height;
+ * - multi_touch_num_contacts.
+ */
+#define LIBXL_HAVE_EXTENDED_VKB 1
+
+/*
+ * LIBXL_HAVE_PHYSINFO_CAP_HAP_SHADOW indicates that libxl_physinfo has
+ * cap_hap and cap_shadow fields reflecting the hardware and Xen availability
+ * of Hardware Assisted, and Shadow paging support.
+ */
+#define LIBXL_HAVE_PHYSINFO_CAP_HAP_SHADOW 1
+
+/*
+ * LIBXL_HAVE_PHYSINFO_CAP_IOMMU_HAP_PT_SHARE indicates that libxl_physinfo
+ * has a cap_iommu_hap_pt_share field that indicates whether the hardware
+ * supports sharing the IOMMU and HAP page tables.
+ */
+#define LIBXL_HAVE_PHYSINFO_CAP_IOMMU_HAP_PT_SHARE 1
+
+/*
+ * LIBXL_HAVE_BUILDINFO_IOMMU_MEMKB indicates thate libxl_domain_build_info
+ * has an iommu_memkb field which should be set with the amount of memory
+ * overhead needed by the domain for populating IOMMU page tables.
+ */
+#define LIBXL_HAVE_BUILDINFO_IOMMU_MEMKB 1
+
+/*
+ * LIBXL_HAVE_CREATEINFO_PASSTHROUGH indicates that
+ * libxl_domain_create_info has a passthrough field (which is a
+ * libxl_passthrough enumeration) that indicates whether device pass-
+ * through is enabled for the domain and, if so, whether the IOMMU and
+ * HAP page tables may be shared or not.
+ */
+#define LIBXL_HAVE_CREATEINFO_PASSTHROUGH 1
+
+/*
+ * LIBXL_HAVE_DISK_SAFE_REMOVE indicates that the
+ * libxl_device_disk_safe_remove() function is defined.
+ */
+#define LIBXL_HAVE_DISK_SAFE_REMOVE 1
+
+/*
+ * libxl ABI compatibility
+ *
+ * The only guarantee which libxl makes regarding ABI compatibility
+ * across releases is that the SONAME will always be bumped whenever
+ * the ABI is changed in an incompatible way.
+ *
+ * This applies within stable branches as well as
+ * development branches. It is possible that a new stable release of
+ * Xen may require a rebuild of applications using the
+ * library. However per the API compatibility gaurantees such a
+ * rebuild should not normally require any source level changes.
+ *
+ * As with the API compatiblity the SONAME will only be bumped for the
+ * first ABI incompatible change in a development branch.
+ */
+
+/*
+ * libxl memory management
+ *
+ * From the point of view of the application (ie, libxl's caller),
+ * struct libxl_ctx* is threadsafe, and all returned allocated
+ * structures are obtained from malloc(), and must be freed by the
+ * caller either directly or by calling an appropriate free function
+ * provided by libxl. Ie the application does not get automatic
+ * assistance from libxl in managing these allocations.
+ *
+ * Specific details are in the header comments which should be found
+ * in libxl.h or libxlutil.h, next to the relevant function
+ * declarations.
+ *
+ * Internally, libxl has a garbage collection scheme which allows much libxl
+ * code to allocate strings etc. for internal use without needing to
+ * free them. These are called "temporary allocations".
+ *
+ * The pool for these temporary allocations, along with any other
+ * thread-specific data which is private to libxl but shared between
+ * libxl functions (such as the current xenstore transaction), is
+ * stored in the "gc context" which is a special enhanced context
+ * structure allocated automatically by convenience macros at every
+ * entry to libxl.
+ *
+ * Every libxl function falls into one of these categories:
+ *
+ * 1. Public functions (declared in libxl.h, libxlutil.h), which may
+ * be called by libxl applications. If a public function returns
+ * any allocated object to its caller, that object must have come
+ * from malloc.
+ *
+ * The definitions of public functions MUST use the gc context
+ * initialisation macros (or do the equivalent work themselves).
+ * These macros will ensure that all temporary allocations will be
+ * automatically freed before the function returns to its caller.
+ *
+ * A public function may be called from within libxl; the call
+ * context initialisation macros will make sure that the internal
+ * caller's context is reused (eg, so that the same xenstore
+ * transaction is used). But in-libxl callers of libxl public
+ * functions should note that any libxl public function may cause
+ * recursively reentry into libxl via the application's event
+ * callback hook.
+ *
+ * Public functions have names like libxl_foobar.
+ *
+ * 2. Private functions, which may not be called by libxl
+ * applications; they are not declared in libxl.h or libxlutil.h
+ * and they may not be called other than by other libxl functions.
+ *
+ * Private functions should not use the gc context initialisation
+ * macros.
+ *
+ * Private functions have names like libxl__foobar (NB, two underscores).
+ * Also the declaration of such functions must be preceeded by the _hidden
+ * macro.
+ *
+ * Allocations made by a libxl function fall into one of the following
+ * categories (where "object" includes any memory allocation):
+ *
+ * (a) Objects which are not returned to the function's caller.
+ * These should be allocated from the temporary pool.
+ *
+ * (b) Objects which are intended for return to the calling
+ * application. This includes all allocated objects returned by
+ * any public function.
+ *
+ * It may also include objects allocated by an internal function
+ * specifically for eventual return by the function's external
+ * callers, but this situation should be clearly documented in
+ * comments.
+ *
+ * These should be allocated from malloc() et al. and comments
+ * near the function declaration should explain the memory
+ * ownership. If a simple free() by the application is not
+ * sufficient, a suitable public freeing function should be
+ * provided.
+ *
+ * (c) Internal objects whose size and/or lifetime dictate explicit
+ * memory management within libxl. This includes objects which
+ * will be embedded in opaque structures which will be returned to
+ * the libxl caller (more generally, any internal object whose
+ * lifetime exceeds the libxl entrypoint which creates it) and
+ * objects which are so large or numerous that explicit memory
+ * management is required.
+ *
+ * These should be allocated from malloc() et al., and freed
+ * explicitly at the appropriate point. The situation should be
+ * documented in comments.
+ *
+ * (d) Objects which are allocated by internal-only functions and
+ * returned to the function's (therefore, internal) caller but are
+ * strictly for internal use by other parts of libxl. These
+ * should be allocated from the temporary pool.
+ *
+ * Where a function's primary purpose is to return such an object,
+ * it should have a libxl__gc * as it's first argument.
+ *
+ * Note that there are two ways to change an allocation from this
+ * category to the "public" category. Either the implementation
+ * is kept internal and a wrapper function duplicates all memory
+ * allocations so that they are suitable for return to external
+ * callers or the implementation uses plain malloc() et al calls
+ * and an internal wrapper adds the relevant pointers to the gc.
+ * The latter method is preferred for obvious performance reasons.
+ *
+ * No temporary objects allocated from the pool may be explicitly freed.
+ * Therefore public functions which initialize a libxl__gc MUST call
+ * libxl__free_all() before returning.
+ *
+ * Memory allocation failures are not handled gracefully. If malloc
+ * (or realloc) fails, libxl will cause the entire process to print
+ * a message to stderr and exit with status 255.
+ */
+/*
+ * libxl types
+ *
+ * Most libxl types are defined by the libxl IDL (see
+ * libxl_types.idl). The library provides a common set of methods for
+ * initialising and freeing these types.
+ *
+ * IDL-generated libxl types should be used as follows: the user must
+ * always call the "init" function before using a type, even if the
+ * variable is simply being passed by reference as an out parameter
+ * to a libxl function. The user must always calls "dispose" exactly
+ * once afterwards, to clean up, regardless of whether operations on
+ * this object succeeded or failed. See the xl code for examples.
+ *
+ * "init" and "dispose" are idempotent.
+ *
+ * void libxl_<type>_init(<type> *p):
+ *
+ * Initialises the members of "p" to all defaults. These may either
+ * be special value which indicates to the library that it should
+ * select an appropriate default when using this field or actual
+ * default values.
+ *
+ * Some fields within a data type (e.g. unions) cannot be sensibly
+ * initialised without further information. In these cases a
+ * separate subfield initialisation function is provided (see
+ * below).
+ *
+ * An instance which has been initialised using this method can
+ * always be safely passed to the dispose function (see
+ * below). This is true even if the data type contains fields which
+ * require a separate call to a subfield initialisation function.
+ *
+ * This method is provided for any aggregate type which is used as
+ * an input parameter.
+ *
+ * void libxl_<type>_init_<subfield>(<type> *p, subfield):
+ *
+ * Initialise those parts of "p" which are not initialised by the
+ * main init function due to the unknown value of "subfield". Sets
+ * p->subfield as well as initialising any fields to their default
+ * values.
+ *
+ * p->subfield must not have been previously initialised.
+ *
+ * This method is provided for any aggregate type.
+ *
+ * void libxl_<type>_dispose(instance *p):
+ *
+ * Frees any dynamically allocated memory used by the members of
+ * "p" but not the storage used by "p" itself (this allows for the
+ * allocation of arrays of types and for the composition of types).
+ *
+ * char *libxl_<type>_to_json(instance *p)
+ *
+ * Generates a JSON object from "p" in the form of a NULL terminated
+ * string.
+ *
+ * <type *> libxl_<type>_from_json(const char *json)
+ * int libxl_<type>_from_json(const char *json)
+ *
+ * Parses "json" and returns:
+ *
+ * an int value, if <type> is enumeration type. The value is the enum value
+ * representing the respective string in "json".
+ *
+ * an instance of <type>, if <type> is aggregate type. The returned
+ * instance has its fields filled in by the parser according to "json".
+ *
+ * If the parsing fails, caller cannot rely on the value / instance
+ * returned.
+ */
+#ifndef LIBXL_H
+#define LIBXL_H
+
+#include <stdbool.h>
+#include <stdint.h>
+#include <stdarg.h>
+#include <string.h>
+#include <errno.h>
+#include <netinet/in.h>
+#include <sys/wait.h> /* for pid_t */
+
+#include <xentoollog.h>
+
+typedef struct libxl__ctx libxl_ctx;
+
+#include <libxl_uuid.h>
+#include <_libxl_list.h>
+
+/* API compatibility. */
+#ifdef LIBXL_API_VERSION
+#if LIBXL_API_VERSION != 0x040200 && LIBXL_API_VERSION != 0x040300 && \
+ LIBXL_API_VERSION != 0x040400 && LIBXL_API_VERSION != 0x040500 && \
+ LIBXL_API_VERSION != 0x040700 && LIBXL_API_VERSION != 0x040800 && \
+ LIBXL_API_VERSION != 0x041300 && LIBXL_API_VERSION != 0x041400
+#error Unknown LIBXL_API_VERSION
+#endif
+#endif
+
+/* LIBXL_HAVE_RETRIEVE_DOMAIN_CONFIGURATION
+ *
+ * If this is defined we have libxl_retrieve_domain_configuration which
+ * returns the current configuration of a domain, which can be used to
+ * rebuild a domain.
+ */
+#define LIBXL_HAVE_RETRIEVE_DOMAIN_CONFIGURATION 1
+
+/*
+ * LIBXL_HAVE_BUILDINFO_VCPU_AFFINITY_ARRAYS
+ *
+ * If this is defined, then the libxl_domain_build_info structure will
+ * contain two arrays of libxl_bitmap-s, with all the necessary information
+ * to set the hard affinity (vcpu_hard_affinity) and the soft affinity
+ * (vcpu_soft_affinity) of the VCPUs.
+ *
+ * Note that, if the vcpu_hard_affinity array is used, libxl will ignore
+ * the content of the cpumap field of libxl_domain_build_info. That is to
+ * say, if the array is allocated and used by the caller, it is it and
+ * only it that determines the hard affinity of the domain's VCPUs.
+ *
+ * The number of libxl_bitmap-s in the arrays should be equal to the
+ * maximum number of VCPUs of the domain. If there only are N elements in
+ * an array, with N smaller the the maximum number of VCPUs, the hard or
+ * soft affinity (depending on which array we are talking about) will be
+ * set only for the first N VCPUs. The other VCPUs will just have affinity,
+ * both hard and soft, with all the host PCPUs.
+ * Each bitmap should be big enough to accommodate the maximum number of
+ * PCPUs of the host.
+ */
+#define LIBXL_HAVE_BUILDINFO_VCPU_AFFINITY_ARRAYS 1
+
+/*
+ * LIBXL_HAVE_BUILDINFO_VKB_DEVICE
+ *
+ * If this is defined, then the libxl_domain_build_info structure will
+ * contain a boolean hvm.vkb_device which instructs libxl whether to include
+ * a vkbd at build time or not.
+ */
+#define LIBXL_HAVE_BUILDINFO_VKB_DEVICE 1
+
+/*
+ * LIBXL_HAVE_BUILDINFO_USBDEVICE_LIST
+ *
+ * If this is defined, then the libxl_domain_build_info structure will
+ * contain hvm.usbdevice_list, a libxl_string_list type that contains
+ * a list of USB devices to specify on the qemu command-line.
+ *
+ * If it is set, callers may use either hvm.usbdevice or
+ * hvm.usbdevice_list, but not both; if both are set, libxl will
+ * throw an error.
+ *
+ * If this is not defined, callers can only use hvm.usbdevice. Note
+ * that this means only one device can be added at domain build time.
+ */
+#define LIBXL_HAVE_BUILDINFO_USBDEVICE_LIST 1
+
+/*
+ * LIBXL_HAVE_BUILDINFO_USBVERSION
+ *
+ * If this is defined, then the libxl_domain_build_info structure will
+ * contain hvm.usbversion, a integer type that contains a USB
+ * controller version to specify on the qemu upstream command-line.
+ *
+ * If it is set, callers may use hvm.usbversion to specify if the usb
+ * controller is usb1, usb2 or usb3.
+ *
+ * If this is not defined, the hvm.usbversion field does not exist.
+ */
+#define LIBXL_HAVE_BUILDINFO_USBVERSION 1
+
+/*
+ * LIBXL_HAVE_DEVICE_BACKEND_DOMNAME
+ *
+ * If this is defined, libxl_device_* structures containing a backend_domid
+ * field also contain a backend_domname field. If backend_domname is set, it
is
+ * resolved to a domain ID when the device is used and takes precedence over
the
+ * backend_domid field.
+ *
+ * If this is not defined, the backend_domname field does not exist.
+ */
+#define LIBXL_HAVE_DEVICE_BACKEND_DOMNAME 1
+
+/*
+ * LIBXL_HAVE_NONCONST_EVENT_OCCURS_EVENT_ARG
+ *
+ * This argument was erroneously "const" in the 4.2 release despite
+ * the requirement for the callback to free the event.
+ */
+#if LIBXL_API_VERSION != 0x040200
+#define LIBXL_HAVE_NONCONST_EVENT_OCCURS_EVENT_ARG 1
+#endif
+
+/*
+ * LIBXL_HAVE_NONCONST_LIBXL_BASENAME_RETURN_VALUE
+ *
+ * The return value of libxl_basename is malloc'ed but the erroneously
+ * marked as "const" in releases before 4.5.
+ */
+#if !defined(LIBXL_API_VERSION) || LIBXL_API_VERSION >= 0x040500
+#define LIBXL_HAVE_NONCONST_LIBXL_BASENAME_RETURN_VALUE 1
+#endif
+
+/*
+ * LIBXL_HAVE_PHYSINFO_OUTSTANDING_PAGES
+ *
+ * If this is defined, libxl_physinfo structure will contain an uint64 field
+ * called outstanding_pages, containing the number of pages claimed but not
+ * yet allocated for all domains.
+ */
+#define LIBXL_HAVE_PHYSINFO_OUTSTANDING_PAGES 1
+
+/*
+ * LIBXL_HAVE_PHYSINFO_MAX_POSSIBLE_MFN
+ *
+ * If this is defined, libxl_physinfo structure will contain an uint64 field
+ * called max_possible_mfn, containing the highest possible mfn on this host,
+ * possibly taking memory hotplug into account.
+ */
+#define LIBXL_HAVE_PHYSINFO_MAX_POSSIBLE_MFN 1
+
+/*
+ * LIBXL_HAVE_DOMINFO_OUTSTANDING_MEMKB 1
+ *
+ * If this is defined, libxl_dominfo will contain a MemKB type field called
+ * outstanding_memkb, containing the amount of claimed but not yet allocated
+ * memory for a specific domain.
+ */
+#define LIBXL_HAVE_DOMINFO_OUTSTANDING_MEMKB 1
+
+/*
+ * LIBXL_HAVE_DOMINFO_NEVER_STOP
+ *
+ * If this is defined, libxl_dominfo will contain a flag called never_stop
+ * indicating that the specific domain should never be stopped by the
+ * toolstack.
+ */
+#define LIBXL_HAVE_DOMINFO_NEVER_STOP 1
+
+/*
+ * LIBXL_HAVE_QXL
+ *
+ * If defined, then the libxl_vga_interface_type will contain another value:
+ * "QXL". This value define if qxl vga is supported.
+ *
+ * If this is not defined, the qxl vga support is missed.
+ */
+#define LIBXL_HAVE_QXL 1
+
+/*
+ * LIBXL_HAVE_SPICE_VDAGENT
+ *
+ * If defined, then the libxl_spice_info structure will contain a boolean type:
+ * vdagent and clipboard_sharing. These values define if Spice vdagent and
+ * clipboard sharing are enabled.
+ *
+ * If this is not defined, the Spice vdagent support is ignored.
+ */
+#define LIBXL_HAVE_SPICE_VDAGENT 1
+
+/*
+ * LIBXL_HAVE_SPICE_USBREDIRECTION
+ *
+ * If defined, then the libxl_spice_info structure will contain an integer type
+ * field: usbredirection. This value defines if Spice usbredirection is enabled
+ * and with how much channels.
+ *
+ * If this is not defined, the Spice usbredirection support is ignored.
+ */
+#define LIBXL_HAVE_SPICE_USBREDIREDIRECTION 1
+
+/*
+ * LIBXL_HAVE_SPICE_IMAGECOMPRESSION
+ *
+ * If defined, then the libxl_spice_info structure will contain a string type
+ * field: image_compression. This value defines what Spice image compression
+ * is used.
+ *
+ * If this is not defined, the Spice image compression setting support is
ignored.
+ */
+#define LIBXL_HAVE_SPICE_IMAGECOMPRESSION 1
+
+/*
+ * LIBXL_HAVE_SPICE_STREAMINGVIDEO
+ *
+ * If defined, then the libxl_spice_info structure will contain a string type
+ * field: streaming_video. This value defines what Spice streaming video
setting
+ * is used.
+ *
+ * If this is not defined, the Spice streaming video setting support is
ignored.
+ */
+#define LIBXL_HAVE_SPICE_STREAMINGVIDEO 1
+
+/*
+ * LIBXL_HAVE_HVM_HDTYPE
+ *
+ * If defined, then the u.hvm structure will contain a enum type
+ * hdtype.
+ */
+#define LIBXL_HAVE_HVM_HDTYPE 1
+
+/*
+ * LIBXL_HAVE_DOMAIN_CREATE_RESTORE_PARAMS 1
+ *
+ * If this is defined, libxl_domain_create_restore()'s API has changed to
+ * include a params structure.
+ */
+#define LIBXL_HAVE_DOMAIN_CREATE_RESTORE_PARAMS 1
+
+/*
+ * LIBXL_HAVE_DOMAIN_CREATE_RESTORE_SEND_BACK_FD 1
+ *
+ * If this is defined, libxl_domain_create_restore()'s API includes the
+ * send_back_fd param. This is used only with COLO, for the libxl migration
+ * back channel; other callers should pass -1.
+ */
+#define LIBXL_HAVE_DOMAIN_CREATE_RESTORE_SEND_BACK_FD 1
+
+/*
+ * LIBXL_HAVE_DRIVER_DOMAIN_CREATION 1
+ *
+ * If this is defined, libxl_domain_create_info contains a driver_domain
+ * field that can be used to tell libxl that the domain that is going
+ * to be created is a driver domain, so the necessary actions are taken.
+ */
+#define LIBXL_HAVE_DRIVER_DOMAIN_CREATION 1
+
+/*
+ * LIBXL_HAVE_SIGCHLD_SELECTIVE_REAP
+ *
+ * If this is defined:
+ *
+ * Firstly, the enum libxl_sigchld_owner (in libxl_event.h) has the
+ * value libxl_sigchld_owner_libxl_always_selective_reap which may be
+ * passed to libxl_childproc_setmode in hooks->chldmode.
+ *
+ * Secondly, the function libxl_childproc_sigchld_occurred exists.
+ */
+#define LIBXL_HAVE_SIGCHLD_OWNER_SELECTIVE_REAP 1
+
+/*
+ * LIBXL_HAVE_SIGCHLD_SHARING
+ *
+ * If this is defined, it is permissible for multiple libxl ctxs
+ * to simultaneously "own" SIGCHLD. See "Subprocess handling"
+ * in libxl_event.h.
+ */
+#define LIBXL_HAVE_SIGCHLD_SHARING 1
+
+/*
+ * LIBXL_HAVE_NO_SUSPEND_RESUME
+ *
+ * Is this is defined then the platform has no support for saving,
+ * restoring or migrating a domain. In this case the related functions
+ * should be expected to return failure. That is:
+ * - libxl_domain_suspend
+ * - libxl_domain_resume
+ * - libxl_domain_remus_start
+ */
+#if defined(__arm__) || defined(__aarch64__)
+#define LIBXL_HAVE_NO_SUSPEND_RESUME 1
+#endif
+
+/*
+ * LIBXL_HAVE_DOMAIN_SUSPEND_ONLY
+ *
+ * If this is defined, function libxl_domains_suspend_only() is available.
+ */
+
+#define LIBXL_HAVE_DOMAIN_SUSPEND_ONLY 1
+
+/*
+ * LIBXL_HAVE_DEVICE_PCI_SEIZE
+ *
+ * If this is defined, then the libxl_device_pci struct will contain
+ * the "seize" boolean field. If this field is set, libxl_pci_add will
+ * check to see if the device is currently assigned to pciback, and if not,
+ * it will attempt to do so (unbinding the device from the existing driver).
+ */
+#define LIBXL_HAVE_DEVICE_PCI_SEIZE 1
+
+/*
+ * LIBXL_HAVE_BUILDINFO_KERNEL
+ *
+ * If this is defined, then the libxl_domain_build_info structure will
+ * contain 'kernel', 'ramdisk', 'cmdline' fields. 'kernel' is a string
+ * to indicate kernel image location, 'ramdisk' is a string to indicate
+ * ramdisk location, 'cmdline' is a string to indicate the paramters which
+ * would be appended to kernel image.
+ *
+ * Both PV guest and HVM guest can use these fields for direct kernel boot.
+ * But for compatibility reason, u.pv.kernel, u.pv.ramdisk and u.pv.cmdline
+ * still exist.
+ */
+#define LIBXL_HAVE_BUILDINFO_KERNEL 1
+
+/*
+ * LIBXL_HAVE_DEVICE_CHANNEL
+ *
+ * If this is defined, then the libxl_device_channel struct exists
+ * and channels can be attached to a domain. Channels manifest as consoles
+ * with names, see docs/misc/console.txt.
+ */
+#define LIBXL_HAVE_DEVICE_CHANNEL 1
+
+/*
+ * LIBXL_HAVE_AO_ABORT indicates the availability of libxl_ao_abort
+ */
+#define LIBXL_HAVE_AO_ABORT 1
+
+/* Functions annotated with LIBXL_EXTERNAL_CALLERS_ONLY may not be
+ * called from within libxl itself. Callers outside libxl, who
+ * do not #include libxl_internal.h, are fine. */
+#ifndef LIBXL_EXTERNAL_CALLERS_ONLY
+#define LIBXL_EXTERNAL_CALLERS_ONLY /* disappears for callers outside libxl */
+#endif
+
+/*
+ * LIBXL_HAVE_UUID_COPY_CTX_PARAM
+ *
+ * If this is defined, libxl_uuid_copy has changed to take a libxl_ctx
+ * structure.
+ */
+#define LIBXL_HAVE_UUID_COPY_CTX_PARAM 1
+
+/*
+ * LIBXL_HAVE_SSID_LABEL
+ *
+ * If this is defined, then libxl IDL contains string of XSM security
+ * label in all XSM related structures.
+ *
+ * If set this string takes precedence over the numeric field.
+ */
+#define LIBXL_HAVE_SSID_LABEL 1
+
+/*
+ * LIBXL_HAVE_CPUPOOL_NAME
+ *
+ * If this is defined, then libxl IDL contains string of CPU pool
+ * name in all CPU pool related structures.
+ *
+ * If set this string takes precedence over the numeric field.
+ */
+#define LIBXL_HAVE_CPUPOOL_NAME 1
+
+/*
+ * LIBXL_HAVE_BUILDINFO_SERIAL_LIST
+ *
+ * If this is defined, then the libxl_domain_build_info structure will
+ * contain hvm.serial_list, a libxl_string_list type that contains
+ * a list of serial ports to specify on the qemu command-line.
+ *
+ * If it is set, callers may use either hvm.serial or
+ * hvm.serial_list, but not both; if both are set, libxl will
+ * throw an error.
+ *
+ * If this is not defined, callers can only use hvm.serial. Note
+ * that this means only one serial port can be added at domain build time.
+ */
+#define LIBXL_HAVE_BUILDINFO_SERIAL_LIST 1
+
+/*
+ * LIBXL_HAVE_ALTP2M
+ * If this is defined, then libxl supports alternate p2m functionality.
+ */
+#define LIBXL_HAVE_ALTP2M 1
+
+/*
+ * LIBXL_HAVE_REMUS
+ * If this is defined, then libxl supports remus.
+ */
+#define LIBXL_HAVE_REMUS 1
+
+/*
+ * LIBXL_HAVE_COLO_USERSPACE_PROXY
+ * If this is defined, then libxl supports COLO userspace proxy.
+ */
+#define LIBXL_HAVE_COLO_USERSPACE_PROXY 1
+
+typedef uint8_t libxl_mac[6];
+#define LIBXL_MAC_FMT "%02hhx:%02hhx:%02hhx:%02hhx:%02hhx:%02hhx"
+#define LIBXL_MAC_FMTLEN ((2*6)+5) /* 6 hex bytes plus 5 colons */
+#define LIBXL_MAC_BYTES(mac) mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]
+void libxl_mac_copy(libxl_ctx *ctx, libxl_mac *dst, const libxl_mac *src);
+
+#if defined(__i386__) || defined(__x86_64__)
+/*
+ * LIBXL_HAVE_PSR_CMT
+ *
+ * If this is defined, the Cache Monitoring Technology feature is supported.
+ */
+#define LIBXL_HAVE_PSR_CMT 1
+
+/*
+ * LIBXL_HAVE_PSR_MBM
+ *
+ * If this is defined, the Memory Bandwidth Monitoring feature is supported.
+ */
+#define LIBXL_HAVE_PSR_MBM 1
+
+/*
+ * LIBXL_HAVE_PSR_CAT
+ *
+ * If this is defined, the Cache Allocation Technology feature is supported.
+ */
+#define LIBXL_HAVE_PSR_CAT 1
+
+/*
+ * LIBXL_HAVE_PSR_CDP
+ *
+ * If this is defined, the Code and Data Prioritization feature is supported.
+ */
+#define LIBXL_HAVE_PSR_CDP 1
+
+/*
+ * LIBXL_HAVE_PSR_L2_CAT
+ *
+ * If this is defined, the L2 Cache Allocation Technology feature is supported.
+ */
+#define LIBXL_HAVE_PSR_L2_CAT 1
+
+/*
+ * LIBXL_HAVE_PSR_GENERIC
+ *
+ * If this is defined, the Memory Bandwidth Allocation feature is supported.
+ * The following public functions are available:
+ * libxl_psr_{set/get}_val
+ * libxl_psr_get_hw_info
+ * libxl_psr_hw_info_list_free
+ */
+#define LIBXL_HAVE_PSR_GENERIC 1
+
+/*
+ * LIBXL_HAVE_MCA_CAPS
+ *
+ * If this is defined, setting MCA capabilities for HVM domain is supported.
+ */
+#define LIBXL_HAVE_MCA_CAPS 1
+#endif
+
+/*
+ * LIBXL_HAVE_PCITOPOLOGY
+ *
+ * If this is defined, then interface to query hypervisor about PCI device
+ * topology is available.
+ */
+#define LIBXL_HAVE_PCITOPOLOGY 1
+
+/*
+ * LIBXL_HAVE_SOCKET_BITMAP
+ *
+ * If this is defined, then libxl_socket_bitmap_alloc and
+ * libxl_get_online_socketmap exist.
+ */
+#define LIBXL_HAVE_SOCKET_BITMAP 1
+
+/*
+ * LIBXL_HAVE_SRM_V2
+ *
+ * If this is defined, then the libxl_domain_create_restore() interface takes
+ * a "stream_version" parameter and supports a value of 2.
+ *
+ * libxl_domain_suspend() will produce a v2 stream.
+ */
+#define LIBXL_HAVE_SRM_V2 1
+
+/*
+ * LIBXL_HAVE_SRM_V1
+ *
+ * In the case that LIBXL_HAVE_SRM_V2 is set, LIBXL_HAVE_SRM_V1
+ * indicates that libxl_domain_create_restore() can handle a "stream_version"
+ * parameter of 1, and convert the stream format automatically.
+ */
+#define LIBXL_HAVE_SRM_V1 1
+
+/*
+ * libxl_domain_build_info has the u.hvm.gfx_passthru_kind field and
+ * the libxl_gfx_passthru_kind enumeration is defined.
+*/
+#define LIBXL_HAVE_GFX_PASSTHRU_KIND
+
+/*
+ * LIBXL_HAVE_CHECKPOINTED_STREAM
+ *
+ * If this is defined, then libxl_checkpointed_stream exists.
+ */
+#define LIBXL_HAVE_CHECKPOINTED_STREAM 1
+
+/*
+ * LIBXL_HAVE_BUILDINFO_HVM_SYSTEM_FIRMWARE
+ *
+ * libxl_domain_build_info has u.hvm.system_firmware field which can be use
+ * to provide a different firmware blob (like SeaBIOS or OVMF).
+ */
+#define LIBXL_HAVE_BUILDINFO_HVM_SYSTEM_FIRMWARE
+
+/*
+ * ERROR_REMUS_XXX error code only exists from Xen 4.5, Xen 4.6 and it
+ * is changed to ERROR_CHECKPOINT_XXX in Xen 4.7
+ */
+#if defined(LIBXL_API_VERSION) && LIBXL_API_VERSION >= 0x040500 \
+ && LIBXL_API_VERSION < 0x040700
+#define ERROR_REMUS_DEVOPS_DOES_NOT_MATCH \
+ ERROR_CHECKPOINT_DEVOPS_DOES_NOT_MATCH
+#define ERROR_REMUS_DEVICE_NOT_SUPPORTED \
+ ERROR_CHECKPOINT_DEVICE_NOT_SUPPORTED
+#endif
+
+/*
+ * LIBXL_HAVE_VGA_INTERFACE_TYPE_UNKNOWN
+ *
+ * In the case that LIBXL_HAVE_VGA_INTERFACE_TYPE_UNKNOWN is set the
+ * libxl_vga_interface_type enumeration type contains a
+ * LIBXL_VGA_INTERFACE_TYPE_UNKNOWN identifier. This is used to signal
+ * that a libxl_vga_interface_type type has not been initialized yet.
+ */
+#define LIBXL_HAVE_VGA_INTERFACE_TYPE_UNKNOWN 1
+
+/*
+ * LIBXL_HAVE_BYTEARRAY_UUID
+ *
+ * If this is defined, the internal member of libxl_uuid is defined
+ * as a 16 byte array that contains the UUID in big endian format.
+ * Also, the same structure layout is used across all OSes.
+ */
+#define LIBXL_HAVE_BYTEARRAY_UUID 1
+
+/*
+ * LIBXL_HAVE_MEMKB_64BITS
+ *
+ * If this is defined libxl_set_memory_target(), libxl_domain_setmaxmem()
+ * and libxl_wait_for_free_memory() will take a 64 bit value for the memory
+ * size parameter.
+ * From Xen 4.8 on libxl_get_memory_target(), libxl_domain_need_memory() and
+ * libxl_get_free_memory() return the memory size in a 64 bit value, too.
+ */
+#define LIBXL_HAVE_MEMKB_64BITS 1
+
+/*
+ * LIBXL_HAVE_QED
+ *
+ * If this is defined QED disk formats can be used for both HVM and PV guests.
+ */
+#define LIBXL_HAVE_QED 1
+
+/*
+ * LIBXL_HAVE_SET_PARAMETERS
+ *
+ * If this is defined setting hypervisor parameters is supported.
+ */
+#define LIBXL_HAVE_SET_PARAMETERS 1
+
+/*
+ * LIBXL_HAVE_PV_SHIM
+ *
+ * If this is defined, libxl_domain_build_info's pvh type information
+ * contains members pvshim, pvshim_path, pvshim_cmdline, pvshim_extra.
+ */
+#define LIBXL_HAVE_PV_SHIM 1
+
+/*
+ * LIBXL_HAVE_PVCALLS
+ *
+ * If this is defined, libxl supports creating pvcalls interfaces.
+ */
+#define LIBXL_HAVE_PVCALLS 1
+
+/*
+ * LIBXL_HAVE_FN_USING_QMP_ASYNC
+ *
+ * This define indicates that some function's API has changed and have an
+ * extra parameter "ao_how" which means that the function can be executed
+ * asynchronously. Those functions are:
+ * libxl_domain_pause()
+ * libxl_domain_unpause()
+ * libxl_send_trigger()
+ * libxl_set_vcpuonline()
+ * libxl_retrieve_domain_configuration()
+ * libxl_qemu_monitor_command()
+ * libxl_domain_shutdown()
+ * libxl_domain_reboot()
+ */
+#define LIBXL_HAVE_FN_USING_QMP_ASYNC 1
+
+/*
+ * LIBXL_HAVE_DOMAIN_NEED_MEMORY_CONFIG
+ *
+ * If this is set, libxl_domain_need_memory takes a
+ * libxl_domain_config* (non-const) and uint32_t domid_for_logging
+ * (instead of a const libxl_domain_build_info*).
+ *
+ * If this is set, there is no need to call
+ * libxl_get_required_shadow_memory and instead the caller should
+ * simply leave shadow_memkb set to LIBXL_MEMKB_DEFAULT and allow
+ * libxl to fill in a suitable default in the usual way.
+ */
+#define LIBXL_HAVE_DOMAIN_NEED_MEMORY_CONFIG
+
+/*
+ * LIBXL_HAVE_CREATEINFO_DOMID
+ *
+ * libxl_domain_create_new() and libxl_domain_create_restore() will use
+ * a domid specified in libxl_domain_create_info.
+ */
+#define LIBXL_HAVE_CREATEINFO_DOMID
+
+/*
+ * LIBXL_HAVE_CREATEINFO_XEND_SUSPEND_EVTCHN_COMPAT
+ *
+ * libxl_domain_create_info contains a boolean 'xend_suspend_evtchn_compat'
+ * value to control creation of the xenstore path for a domain's suspend
+ * event channel.
+ */
+#define LIBXL_HAVE_CREATEINFO_XEND_SUSPEND_EVTCHN_COMPAT
+
+typedef char **libxl_string_list;
+void libxl_string_list_dispose(libxl_string_list *sl);
+int libxl_string_list_length(const libxl_string_list *sl);
+void libxl_string_list_copy(libxl_ctx *ctx, libxl_string_list *dst,
+ const libxl_string_list *src);
+
+typedef char **libxl_key_value_list;
+void libxl_key_value_list_dispose(libxl_key_value_list *kvl);
+int libxl_key_value_list_length(const libxl_key_value_list *kvl);
+void libxl_key_value_list_copy(libxl_ctx *ctx,
+ libxl_key_value_list *dst,
+ const libxl_key_value_list *src);
+
+typedef uint32_t libxl_hwcap[8];
+void libxl_hwcap_copy(libxl_ctx *ctx, libxl_hwcap *dst, const libxl_hwcap
*src);
+
+typedef uint64_t libxl_ev_user;
+
+typedef struct {
+ uint32_t size; /* number of bytes in map */
+ uint8_t *map;
+} libxl_bitmap;
+void libxl_bitmap_init(libxl_bitmap *map);
+void libxl_bitmap_dispose(libxl_bitmap *map);
+
+/*
+ * libxl_cpuid_policy is opaque in the libxl ABI. Users of both libxl and
+ * libxc may not make assumptions about xc_xend_cpuid.
+ */
+typedef struct xc_xend_cpuid libxl_cpuid_policy;
+typedef libxl_cpuid_policy * libxl_cpuid_policy_list;
+void libxl_cpuid_dispose(libxl_cpuid_policy_list *cpuid_list);
+int libxl_cpuid_policy_list_length(const libxl_cpuid_policy_list *l);
+void libxl_cpuid_policy_list_copy(libxl_ctx *ctx,
+ libxl_cpuid_policy_list *dst,
+ const libxl_cpuid_policy_list *src);
+
+#define LIBXL_PCI_FUNC_ALL (~0U)
+
+typedef uint32_t libxl_domid;
+typedef int libxl_devid;
+
+/*
+ * Formatting Enumerations.
+ *
+ * Each enumeration type libxl_E declares an associated lookup table
+ * libxl_E_string_table and a lookup function libxl_E_from_string.
+ */
+typedef struct {
+ const char *s;
+ int v;
+} libxl_enum_string_table;
+
+struct libxl_event;
+typedef LIBXL_TAILQ_ENTRY(struct libxl_event) libxl_ev_link;
+
+/*
+ * A boolean variable with an explicit default state.
+ *
+ * Users should treat this struct as opaque and use the following
+ * defined macros and accessor functions.
+ *
+ * To allow users of the library to naively select all defaults this
+ * state is represented as 0. False is < 0 and True is > 0.
+ */
+typedef struct {
+ int val;
+} libxl_defbool;
+
+void libxl_defbool_set(libxl_defbool *db, bool b);
+/* Resets to default */
+void libxl_defbool_unset(libxl_defbool *db);
+/* Sets db only if it is currently == default */
+void libxl_defbool_setdefault(libxl_defbool *db, bool b);
+bool libxl_defbool_is_default(libxl_defbool db);
+/* db must not be == default */
+bool libxl_defbool_val(libxl_defbool db);
+
+const char *libxl_defbool_to_string(libxl_defbool b);
+
+#define LIBXL_TIMER_MODE_DEFAULT -1
+#define LIBXL_MEMKB_DEFAULT ~0ULL
+
+/*
+ * We'd like to set a memory boundary to determine if we need to check
+ * any overlap with reserved device memory.
+ */
+#define LIBXL_RDM_MEM_BOUNDARY_MEMKB_DEFAULT (2048 * 1024)
+
+#define LIBXL_MS_VM_GENID_LEN 16
+typedef struct {
+ uint8_t bytes[LIBXL_MS_VM_GENID_LEN];
+} libxl_ms_vm_genid;
+
+#include "_libxl_types.h"
+
+const libxl_version_info* libxl_get_version_info(libxl_ctx *ctx);
+
+/*
+ * Some libxl operations can take a long time. These functions take a
+ * parameter to control their concurrency:
+ * libxl_asyncop_how *ao_how
+ *
+ * If ao_how==NULL, the function will be synchronous.
+ *
+ * If ao_how!=NULL, the function will set the operation going, and if
+ * this is successful will return 0. In this case the zero error
+ * response does NOT mean that the operation was successful; it just
+ * means that it has been successfully started. It will finish later,
+ * perhaps with an error.
+ *
+ * If ao_how->callback!=NULL, the callback will be called when the
+ * operation completes. The same rules as for libxl_event_hooks
+ * apply, including the reentrancy rules and the possibility of
+ * "disaster", except that libxl calls ao_how->callback instead of
+ * libxl_event_hooks.event_occurs. (See libxl_event.h.)
+ *
+ * If ao_how->callback==NULL, a libxl_event will be generated which
+ * can be obtained from libxl_event_wait or libxl_event_check. The
+ * event will have type OPERATION_COMPLETE (which is not used
+ * elsewhere).
+ *
+ * Note that it is possible for an asynchronous operation which is to
+ * result in a callback to complete during its initiating function
+ * call. In this case the initiating function will return 0
+ * indicating the at the operation is "in progress", even though by
+ * the time it returns the operation is complete and the callback has
+ * already happened.
+ *
+ * The application must set and use ao_how->for_event (which will be
+ * copied into libxl_event.for_user) or ao_how->for_callback (passed
+ * to the callback) to determine which operation finished, and it must
+ * of course check the rc value for errors.
+ *
+ * *ao_how does not need to remain valid after the initiating function
+ * returns. All other parameters must remain valid for the lifetime of
+ * the asynchronous operation, unless otherwise specified.
+ *
+ * Callbacks may occur on any thread in which the application calls
+ * libxl.
+ */
+
+typedef struct {
+ void (*callback)(libxl_ctx *ctx, int rc, void *for_callback);
+ union {
+ libxl_ev_user for_event; /* used if callback==NULL */
+ void *for_callback; /* passed to callback */
+ } u;
+} libxl_asyncop_how;
+
+/*
+ * Some more complex asynchronous operations can report intermediate
+ * progress. How this is to be reported is controlled, for each
+ * function, by a parameter
+ * libxl_asyncprogress_how *aop_FOO_how;
+ * for each kind of progress FOO supported by that function. Each
+ * such kind of progress is associated with an event type.
+ *
+ * The function description will document whether, when, and how
+ * many times, the intermediate progress will be reported, and
+ * what the corresponding event type(s) are.
+ *
+ * If aop_FOO_how==NULL, intermediate progress reports are discarded.
+ *
+ * If aop_FOO_how->callback==NULL, intermediate progress reports
+ * generate libxl events which can be obtained from libxl_event_wait
+ * or libxl_event_check.
+ *
+ * If aop_FOO_how->callback!=NULL, libxl will report intermediate
+ * progress by calling callback(ctx, &event, for_callback).
+ *
+ * The rules for these events are otherwise the same as those for
+ * ordinary events. The reentrancy and threading rules for the
+ * callback are the same as those for ao completion callbacks.
+ *
+ * Note that the callback, if provided, is responsible for freeing
+ * the event.
+ *
+ * If callbacks are requested, they will be made, and returned, before
+ * the long-running libxl operation is considered finished (so if the
+ * long-running libxl operation was invoked with ao_how==NULL then any
+ * callbacks will occur strictly before the long-running operation
+ * returns). However, the callbacks may occur on any thread.
+ *
+ * In general, otherwise, no promises are made about the relative
+ * order of callbacks in a multithreaded program. In particular
+ * different callbacks relating to the same long-running operation may
+ * be delivered out of order.
+ */
+
+typedef struct {
+ void (*callback)(libxl_ctx *ctx, libxl_event*, void *for_callback);
+ libxl_ev_user for_event; /* always used */
+ void *for_callback; /* passed to callback */
+} libxl_asyncprogress_how;
+
+/*
+ * It is sometimes possible to abort an asynchronous operation.
+ *
+ * libxl_ao_abort searches for an ongoing asynchronous operation whose
+ * ao_how is identical to *how, and tries to abort it. The return
+ * values from libxl_ao_abort are as follows:
+ *
+ * 0
+ *
+ * The operation was found, and attempts are being made to cut it
+ * short. However, it may still take some time to stop. It is
+ * also possible that the operation will nevertheless complete
+ * successfully.
+ *
+ * ERROR_NOTFOUND
+ *
+ * No matching ongoing operation was found. This might happen
+ * for an actual operation if the operation has already completed
+ * (perhaps on another thread). The call to libxl_ao_abort has
+ * had no effect.
+ *
+ * ERROR_ABORTED
+ *
+ * The operation has already been the subject of at least one
+ * call to libxl_ao_abort.
+ *
+ * If the operation was indeed cut short due to the abort request, it
+ * will complete, at some point in the future, with ERROR_ABORTED. In
+ * that case, depending on the operation it have performed some of the
+ * work in question and left the operation half-done. Consult the
+ * documentation for individual operations.
+ *
+ * Note that an aborted operation might still fail for other reasons
+ * even after the abort was requested.
+ *
+ * If your application is multithreaded you must not reuse an
+ * ao_how->for_event or ao_how->for_callback value (with a particular
+ * ao_how->callback) unless you are sure that none of your other
+ * threads are going to abort the previous operation using that
+ * value; otherwise you risk aborting the wrong operation if the
+ * intended target of the abort request completes in the meantime.
+ *
+ * It is possible to abort even an operation which is being performed
+ * synchronously, but since in that case how==NULL you had better only
+ * have one such operation, because it is not possible to tell them
+ * apart (and libxl_ao_abort will abort only the first one it finds).
+ * (And, if you want to do this, obviously the abort would have to be
+ * requested on a different thread.)
+ */
+int libxl_ao_abort(libxl_ctx *ctx, const libxl_asyncop_how *how)
+ LIBXL_EXTERNAL_CALLERS_ONLY;
+
+
+#define LIBXL_VERSION 0
+
+/* context functions */
+int libxl_ctx_alloc(libxl_ctx **pctx, int version,
+ unsigned flags /* none currently defined */,
+ xentoollog_logger *lg);
+int libxl_ctx_free(libxl_ctx *ctx /* 0 is OK */);
+
+/* domain related functions */
+
+#define INVALID_DOMID ~0
+#define RANDOM_DOMID (INVALID_DOMID - 1)
+
+/* If the result is ERROR_ABORTED, the domain may or may not exist
+ * (in a half-created state). *domid will be valid and will be the
+ * domain id, or INVALID_DOMID, as appropriate */
+
+int libxl_domain_create_new(libxl_ctx *ctx, libxl_domain_config *d_config,
+ uint32_t *domid,
+ const libxl_asyncop_how *ao_how,
+ const libxl_asyncprogress_how *aop_console_how)
+ LIBXL_EXTERNAL_CALLERS_ONLY;
+int libxl_domain_create_restore(libxl_ctx *ctx, libxl_domain_config *d_config,
+ uint32_t *domid, int restore_fd,
+ int send_back_fd,
+ const libxl_domain_restore_params *params,
+ const libxl_asyncop_how *ao_how,
+ const libxl_asyncprogress_how *aop_console_how)
+ LIBXL_EXTERNAL_CALLERS_ONLY;
+
+#if defined(LIBXL_API_VERSION) && LIBXL_API_VERSION < 0x040400
+
+static inline int libxl_domain_create_restore_0x040200(
+ libxl_ctx *ctx, libxl_domain_config *d_config,
+ uint32_t *domid, int restore_fd,
+ const libxl_asyncop_how *ao_how,
+ const libxl_asyncprogress_how *aop_console_how)
+ LIBXL_EXTERNAL_CALLERS_ONLY
+{
+ libxl_domain_restore_params params;
+ int ret;
+
+ libxl_domain_restore_params_init(¶ms);
+
+ ret = libxl_domain_create_restore(
+ ctx, d_config, domid, restore_fd, -1, ¶ms, ao_how,
aop_console_how);
+
+ libxl_domain_restore_params_dispose(¶ms);
+ return ret;
+}
+
+#define libxl_domain_create_restore libxl_domain_create_restore_0x040200
+
+#elif defined(LIBXL_API_VERSION) && LIBXL_API_VERSION >= 0x040400 \
+ && LIBXL_API_VERSION < 0x040700
+
+static inline int libxl_domain_create_restore_0x040400(
+ libxl_ctx *ctx, libxl_domain_config *d_config,
+ uint32_t *domid, int restore_fd,
+ const libxl_domain_restore_params *params,
+ const libxl_asyncop_how *ao_how,
+ const libxl_asyncprogress_how *aop_console_how)
+ LIBXL_EXTERNAL_CALLERS_ONLY
+{
+ return libxl_domain_create_restore(ctx, d_config, domid, restore_fd,
+ -1, params, ao_how, aop_console_how);
+}
+
+#define libxl_domain_create_restore libxl_domain_create_restore_0x040400
+
+#endif
+
+int libxl_domain_soft_reset(libxl_ctx *ctx,
+ libxl_domain_config *d_config,
+ uint32_t domid,
+ const libxl_asyncop_how *ao_how,
+ const libxl_asyncprogress_how
+ *aop_console_how)
+ LIBXL_EXTERNAL_CALLERS_ONLY;
+
+ /* A progress report will be made via ao_console_how, of type
+ * domain_create_console_available, when the domain's primary
+ * console is available and can be connected to.
+ */
+
+void libxl_domain_config_init(libxl_domain_config *d_config);
+void libxl_domain_config_dispose(libxl_domain_config *d_config);
+
+/*
+ * Retrieve domain configuration and filled it in d_config. The
+ * returned configuration can be used to rebuild a domain. It only
+ * works with DomU.
+ */
+int libxl_retrieve_domain_configuration(libxl_ctx *ctx, uint32_t domid,
+ libxl_domain_config *d_config,
+ const libxl_asyncop_how *ao_how)
+ LIBXL_EXTERNAL_CALLERS_ONLY;
+#if defined(LIBXL_API_VERSION) && LIBXL_API_VERSION < 0x041300
+static inline int libxl_retrieve_domain_configuration_0x041200(
+ libxl_ctx *ctx, uint32_t domid, libxl_domain_config *d_config)
+{
+ return libxl_retrieve_domain_configuration(ctx, domid, d_config, NULL);
+}
+#define libxl_retrieve_domain_configuration \
+ libxl_retrieve_domain_configuration_0x041200
+#endif
+
+int libxl_domain_suspend(libxl_ctx *ctx, uint32_t domid, int fd,
+ int flags, /* LIBXL_SUSPEND_* */
+ const libxl_asyncop_how *ao_how)
+ LIBXL_EXTERNAL_CALLERS_ONLY;
+#define LIBXL_SUSPEND_DEBUG 1
+#define LIBXL_SUSPEND_LIVE 2
+
+/*
+ * Only suspend domain, do not save its state to file, do not destroy it.
+ * Suspended domain can be resumed with libxl_domain_resume()
+ */
+int libxl_domain_suspend_only(libxl_ctx *ctx, uint32_t domid,
+ const libxl_asyncop_how *ao_how)
+ LIBXL_EXTERNAL_CALLERS_ONLY;
+
+/* @param suspend_cancel [from xenctrl.h:xc_domain_resume( @param fast )]
+ * If this parameter is true, use co-operative resume. The guest
+ * must support this.
+ */
+int libxl_domain_resume(libxl_ctx *ctx, uint32_t domid, int suspend_cancel,
+ const libxl_asyncop_how *ao_how)
+ LIBXL_EXTERNAL_CALLERS_ONLY;
+
+/*
+ * This function doesn't return unless something has gone wrong with
+ * the replication to the secondary. If this function returns then the
+ * caller should resume the (primary) domain.
+ */
+int libxl_domain_remus_start(libxl_ctx *ctx, libxl_domain_remus_info *info,
+ uint32_t domid, int send_fd, int recv_fd,
+ const libxl_asyncop_how *ao_how)
+ LIBXL_EXTERNAL_CALLERS_ONLY;
+
+int libxl_domain_shutdown(libxl_ctx *ctx, uint32_t domid,
+ const libxl_asyncop_how *ao_how)
+ LIBXL_EXTERNAL_CALLERS_ONLY;
+int libxl_domain_reboot(libxl_ctx *ctx, uint32_t domid,
+ const libxl_asyncop_how *ao_how)
+ LIBXL_EXTERNAL_CALLERS_ONLY;
+#if defined(LIBXL_API_VERSION) && LIBXL_API_VERSION < 0x041300
+static inline int libxl_domain_shutdown_0x041200(libxl_ctx *ctx,
+ uint32_t domid)
+{
+ return libxl_domain_shutdown(ctx, domid, NULL);
+}
+#define libxl_domain_shutdown libxl_domain_shutdown_0x041200
+static inline int libxl_domain_reboot_0x041200(libxl_ctx *ctx,
+ uint32_t domid)
+{
+ return libxl_domain_reboot(ctx, domid, NULL);
+}
+#define libxl_domain_reboot libxl_domain_reboot_0x041200
+#endif
+
+int libxl_domain_destroy(libxl_ctx *ctx, uint32_t domid,
+ const libxl_asyncop_how *ao_how)
+ LIBXL_EXTERNAL_CALLERS_ONLY;
+int libxl_domain_preserve(libxl_ctx *ctx, uint32_t domid,
libxl_domain_create_info *info, const char *name_suffix, libxl_uuid new_uuid);
+
+/* get max. number of cpus supported by hypervisor */
+int libxl_get_max_cpus(libxl_ctx *ctx);
+
+/* get the actual number of currently online cpus on the host */
+int libxl_get_online_cpus(libxl_ctx *ctx);
+ /* Beware that no locking or serialization is provided by libxl,
+ * so the information can be outdated as far as the function
+ * returns. If there are other entities in the system capable
+ * of onlining/offlining CPUs, it is up to the application
+ * to guarantee consistency, if that is important. */
+
+/* get max. number of NUMA nodes supported by hypervisor */
+int libxl_get_max_nodes(libxl_ctx *ctx);
+
+int libxl_domain_rename(libxl_ctx *ctx, uint32_t domid,
+ const char *old_name, const char *new_name);
+
+ /* if old_name is NULL, any old name is OK; otherwise we check
+ * transactionally that the domain has the old old name; if
+ * trans is not 0 we use caller's transaction and caller must do retries */
+
+int libxl_domain_pause(libxl_ctx *ctx, uint32_t domid,
+ const libxl_asyncop_how *ao_how)
+ LIBXL_EXTERNAL_CALLERS_ONLY;
+int libxl_domain_unpause(libxl_ctx *ctx, uint32_t domid,
+ const libxl_asyncop_how *ao_how)
+ LIBXL_EXTERNAL_CALLERS_ONLY;
+#if defined(LIBXL_API_VERSION) && LIBXL_API_VERSION < 0x041300
+static inline int libxl_domain_pause_0x041200(
+ libxl_ctx *ctx, uint32_t domid)
+{
+ return libxl_domain_pause(ctx, domid, NULL);
+}
+static inline int libxl_domain_unpause_0x041200(
+ libxl_ctx *ctx, uint32_t domid)
+{
+ return libxl_domain_unpause(ctx, domid, NULL);
+}
+#define libxl_domain_pause libxl_domain_pause_0x041200
+#define libxl_domain_unpause libxl_domain_unpause_0x041200
+#endif
+
+
+int libxl_domain_core_dump(libxl_ctx *ctx, uint32_t domid,
+ const char *filename,
+ const libxl_asyncop_how *ao_how)
+ LIBXL_EXTERNAL_CALLERS_ONLY;
+
+int libxl_domain_setmaxmem(libxl_ctx *ctx, uint32_t domid, uint64_t
target_memkb);
+int libxl_set_memory_target(libxl_ctx *ctx, uint32_t domid, int64_t
target_memkb, int relative, int enforce);
+int libxl_get_memory_target(libxl_ctx *ctx, uint32_t domid, uint64_t
*out_target);
+int libxl_get_memory_target_0x040700(libxl_ctx *ctx, uint32_t domid,
+ uint32_t *out_target)
+ LIBXL_EXTERNAL_CALLERS_ONLY;
+
+/*
+ * WARNING
+ * This memory management API is unstable even in Xen 4.2.
+ * It has a numer of deficiencies and we intend to replace it.
+ *
+ * The semantics of these functions should not be relied on to be very
+ * coherent or stable. We will however endeavour to keep working
+ * existing programs which use them in roughly the same way as libxl.
+ */
+/* how much free memory in the system a domain needs to be built */
+int libxl_domain_need_memory(libxl_ctx *ctx,
+ libxl_domain_config *config
+ /* ^ will be partially defaulted */,
+ uint32_t domid_for_logging /* INVALID_DOMID ok */,
+ uint64_t *need_memkb);
+int libxl_domain_need_memory_0x041200(libxl_ctx *ctx,
+ const libxl_domain_build_info *b_info_in,
+ uint64_t *need_memkb);
+int libxl_domain_need_memory_0x040700(libxl_ctx *ctx,
+ const libxl_domain_build_info *b_info_in,
+ uint32_t *need_memkb)
+ LIBXL_EXTERNAL_CALLERS_ONLY;
+/* how much free memory is available in the system */
+int libxl_get_free_memory(libxl_ctx *ctx, uint64_t *memkb);
+int libxl_get_free_memory_0x040700(libxl_ctx *ctx, uint32_t *memkb)
+ LIBXL_EXTERNAL_CALLERS_ONLY;
+/* wait for a given amount of memory to be free in the system */
+int libxl_wait_for_free_memory(libxl_ctx *ctx, uint32_t domid, uint64_t
memory_kb, int wait_secs);
+/*
+ * Wait for the memory target of a domain to be reached. Does not
+ * decrement wait_secs if the domain is making progress toward reaching
+ * the target. If the domain is not making progress, wait_secs is
+ * decremented. If the timeout expires before the target is reached, the
+ * function returns ERROR_FAIL.
+ *
+ * Older versions of this function (Xen 4.5 and older), decremented
+ * wait_secs even if the domain was making progress, resulting in far
+ * lower overall wait times. To make sure that your calling routine
+ * works with new and old implementations of the function, pass enough
+ * time for the guest to reach its target as an argument.
+ */
+int libxl_wait_for_memory_target(libxl_ctx *ctx, uint32_t domid, int
wait_secs);
+
+#if defined(LIBXL_API_VERSION) && LIBXL_API_VERSION < 0x040800
+#define libxl_get_memory_target libxl_get_memory_target_0x040700
+#define libxl_domain_need_memory libxl_domain_need_memory_0x040700
+#define libxl_get_free_memory libxl_get_free_memory_0x040700
+#elif defined(LIBXL_API_VERSION) && LIBXL_API_VERSION < 0x041300
+#define libxl_domain_need_memory libxl_domain_need_memory_0x041200
+#endif
+
+int libxl_vncviewer_exec(libxl_ctx *ctx, uint32_t domid, int autopass);
+
+/*
+ * If notify_fd is not -1, xenconsole will write 0x00 to it to nofity
+ * the caller that it has connected to the guest console.
+ */
+int libxl_console_exec(libxl_ctx *ctx, uint32_t domid, int cons_num,
+ libxl_console_type type, int notify_fd);
+/* libxl_primary_console_exec finds the domid and console number
+ * corresponding to the primary console of the given vm, then calls
+ * libxl_console_exec with the right arguments (domid might be different
+ * if the guest is using stubdoms).
+ * This function can be called after creating the device model, in
+ * case of HVM guests, and before libxl_run_bootloader in case of PV
+ * guests using pygrub.
+ * If notify_fd is not -1, xenconsole will write 0x00 to it to nofity
+ * the caller that it has connected to the guest console.
+ */
+int libxl_primary_console_exec(libxl_ctx *ctx, uint32_t domid_vm,
+ int notify_fd);
+
+#if defined(LIBXL_API_VERSION) && LIBXL_API_VERSION < 0x040800
+
+static inline int libxl_console_exec_0x040700(libxl_ctx *ctx,
+ uint32_t domid, int cons_num,
+ libxl_console_type type)
+{
+ return libxl_console_exec(ctx, domid, cons_num, type, -1);
+}
+#define libxl_console_exec libxl_console_exec_0x040700
+
+static inline int libxl_primary_console_exec_0x040700(libxl_ctx *ctx,
+ uint32_t domid_vm)
+{
+ return libxl_primary_console_exec(ctx, domid_vm, -1);
+}
+#define libxl_primary_console_exec libxl_primary_console_exec_0x040700
+
+#endif
+
+/* libxl_console_get_tty retrieves the specified domain's console tty path
+ * and stores it in path. Caller is responsible for freeing the memory.
+ */
+int libxl_console_get_tty(libxl_ctx *ctx, uint32_t domid, int cons_num,
+ libxl_console_type type, char **path);
+
+/* libxl_primary_console_get_tty retrieves the specified domain's primary
+ * console tty path and stores it in path. Caller is responsible for freeing
+ * the memory.
+ */
+int libxl_primary_console_get_tty(libxl_ctx *ctx, uint32_t domid_vm, char
**path);
+
+/* May be called with info_r == NULL to check for domain's existence.
+ * Returns ERROR_DOMAIN_NOTFOUND if domain does not exist (used to return
+ * ERROR_INVAL for this scenario). */
+int libxl_domain_info(libxl_ctx*, libxl_dominfo *info_r,
+ uint32_t domid);
+
+/* These functions each return (on success) an array of elements,
+ * and the length via the int* out parameter. These arrays and
+ * their contents come from malloc, and must be freed with the
+ * corresponding libxl_THING_list_free function.
+ */
+libxl_dominfo * libxl_list_domain(libxl_ctx*, int *nb_domain_out);
+void libxl_dominfo_list_free(libxl_dominfo *list, int nb_domain);
+
+libxl_cpupoolinfo * libxl_list_cpupool(libxl_ctx*, int *nb_pool_out);
+void libxl_cpupoolinfo_list_free(libxl_cpupoolinfo *list, int nb_pool);
+
+libxl_vminfo * libxl_list_vm(libxl_ctx *ctx, int *nb_vm_out);
+void libxl_vminfo_list_free(libxl_vminfo *list, int nb_vm);
+
+#define LIBXL_CPUTOPOLOGY_INVALID_ENTRY (~(uint32_t)0)
+libxl_cputopology *libxl_get_cpu_topology(libxl_ctx *ctx, int *nb_cpu_out);
+void libxl_cputopology_list_free(libxl_cputopology *, int nb_cpu);
+
+#define LIBXL_PCITOPOLOGY_INVALID_ENTRY (~(uint32_t)0)
+libxl_pcitopology *libxl_get_pci_topology(libxl_ctx *ctx, int *num_devs);
+void libxl_pcitopology_list_free(libxl_pcitopology *, int num_devs);
+
+#define LIBXL_NUMAINFO_INVALID_ENTRY (~(uint32_t)0)
+libxl_numainfo *libxl_get_numainfo(libxl_ctx *ctx, int *nr);
+void libxl_numainfo_list_free(libxl_numainfo *, int nr);
+
+libxl_vcpuinfo *libxl_list_vcpu(libxl_ctx *ctx, uint32_t domid,
+ int *nb_vcpu, int *nr_cpus_out);
+void libxl_vcpuinfo_list_free(libxl_vcpuinfo *, int nr_vcpus);
+
+/*
+ * Devices
+ * =======
+ *
+ * Each device is represented by a libxl_device_<TYPE> data structure
+ * which is defined via the IDL. In addition some devices have an
+ * additional data type libxl_device_<TYPE>_getinfo which contains
+ * further runtime information about the device.
+ *
+ * In addition to the general methods available for libxl types (see
+ * "libxl types" above) a common set of methods are available for each
+ * device type. These are described below.
+ *
+ * Querying
+ * --------
+ *
+ * libxl_device_<type>_list(ctx, domid, nr):
+ *
+ * Returns an array of libxl_device_<type> length nr representing
+ * the devices attached to the specified domain.
+ *
+ * libxl_device_<type>_getinfo(ctx, domid, device, info):
+ *
+ * Initialises info with details of the given device which must be
+ * attached to the specified domain.
+ *
+ * Creation / Control
+ * ------------------
+ *
+ * libxl_device_<type>_add(ctx, domid, device):
+ *
+ * Adds the given device to the specified domain. This can be called
+ * while the guest is running (hotplug) or before boot (coldplug).
+ *
+ * This function only sets up the device but does not wait for the
+ * domain to connect to the device and therefore cannot block on the
+ * guest.
+ *
+ * device is an in/out parameter: fields left unspecified when the
+ * structure is passed in are filled in with appropriate values for
+ * the device created.
+ *
+ * libxl_device_<type>_destroy(ctx, domid, device):
+ *
+ * Removes the given device from the specified domain without guest
+ * co-operation. It is guest specific what affect this will have on
+ * a running guest.
+ *
+ * This function does not interact with the guest and therefore
+ * cannot block on the guest.
+ *
+ * libxl_device_<type>_remove(ctx, domid, device):
+ *
+ * Removes the given device from the specified domain by performing
+ * an orderly unplug with guest co-operation. This requires that the
+ * guest is running.
+ *
+ * This method is currently synchronous and therefore can block
+ * while interacting with the guest. There is a time-out of 10s on
+ * this interaction after which libxl_device_<type>_destroy()
+ * semantics apply.
+ *
+ * libxl_device_<type>_safe_remove(ctx, domid, device):
+ *
+ * This has the same semantics as libxl_device_<type>_remove() but,
+ * in the event of hitting the 10s time-out, this function will fail.
+ *
+ * Controllers
+ * -----------
+ *
+ * Most devices are treated individually. Some classes of device,
+ * however, like USB or SCSI, inherently have the need to have a
+ * hierarchy of different levels, with lower-level devices "attached"
+ * to higher-level ones. USB for instance has "controllers" at the
+ * top, which have buses, on which are devices, which consist of
+ * multiple interfaces. SCSI has "hosts" at the top, then buses,
+ * targets, and LUNs.
+ *
+ * In that case, for each <class>, there will be a set of functions
+ * and types for each <level>. For example, for <class>=usb, there
+ * may be <levels> ctrl (controller) and dev (device), with ctrl being
+ * level 0.
+ *
+ * libxl_device_<class><level0>_<function> will act more or
+ * less like top-level non-bus devices: they will either create or
+ * accept a libxl_devid which will be unique within the
+ * <class><level0> libxl_devid namespace.
+ *
+ * Lower-level devices must have a unique way to be identified. One
+ * way to do this would be to name it via the name of the next level
+ * up plus an index; for instance, <ctrl devid, port number>. Another
+ * way would be to have another devid namespace for that level. This
+ * identifier will be used for queries and removals.
+ *
+ * Lower-level devices will include in their
+ * libxl_device_<class><level> struct a field referring to the unique
+ * index of the level above. For instance, libxl_device_usbdev might
+ * contain the controller devid.
+ *
+ * In the case where there are multiple different ways to implement a
+ * given device -- for instance, one which is fully PV and one which
+ * uses an emulator -- the controller will contain a field which
+ * specifies what type of implementation is used. The implementations
+ * of individual devices will be known by the controller to which they
+ * are attached.
+ *
+ * If libxl_device_<class><level>_add receives an empty reference to
+ * the level above, it may return an error. Or it may (but is not
+ * required to) automatically choose a suitable device in the level
+ * above to which to attach the new device at this level. It may also
+ * (but is not required to) automatically create a new device at the
+ * level above if no suitable devices exist. Each class should
+ * document its behavior.
+ *
+ * libxl_device_<class><level>_list will list all devices of <class>
+ * at <level> in the domain. For example, libxl_device_usbctrl_list
+ * will list all usb controllers; libxl_class_usbdev_list will list
+ * all usb devices across all controllers.
+ *
+ * For each class, the domain config file will contain a single list
+ * for each level. libxl will first iterate through the list of
+ * top-level devices, then iterate through each level down in turn,
+ * adding devices to devices in the level above. For instance, there
+ * will be one list for all usb controllers, and one list for all usb
+ * devices.
+ *
+ * If libxl_device_<class><level>_add automatically creates
+ * higher-level devices as necessary, then it is permissible for the
+ * higher-level lists to be empty and the device list to have devices
+ * with the field containing a reference to the higher level device
+ * uninitialized.
+ */
+
+/* Disks */
+int libxl_device_disk_add(libxl_ctx *ctx, uint32_t domid,
+ libxl_device_disk *disk,
+ const libxl_asyncop_how *ao_how)
+ LIBXL_EXTERNAL_CALLERS_ONLY;
+int libxl_device_disk_remove(libxl_ctx *ctx, uint32_t domid,
+ libxl_device_disk *disk,
+ const libxl_asyncop_how *ao_how)
+ LIBXL_EXTERNAL_CALLERS_ONLY;
+int libxl_device_disk_destroy(libxl_ctx *ctx, uint32_t domid,
+ libxl_device_disk *disk,
+ const libxl_asyncop_how *ao_how)
+ LIBXL_EXTERNAL_CALLERS_ONLY;
+int libxl_device_disk_safe_remove(libxl_ctx *ctx, uint32_t domid,
+ libxl_device_disk *disk,
+ const libxl_asyncop_how *ao_how)
+ LIBXL_EXTERNAL_CALLERS_ONLY;
+
+libxl_device_disk *libxl_device_disk_list(libxl_ctx *ctx,
+ uint32_t domid, int *num)
+ LIBXL_EXTERNAL_CALLERS_ONLY;
+void libxl_device_disk_list_free(libxl_device_disk* list, int num)
+ LIBXL_EXTERNAL_CALLERS_ONLY;
+int libxl_device_disk_getinfo(libxl_ctx *ctx, uint32_t domid,
+ const libxl_device_disk *disk, libxl_diskinfo
*diskinfo)
+ LIBXL_EXTERNAL_CALLERS_ONLY;
+
+/*
+ * Insert a CD-ROM device. A device corresponding to disk must already
+ * be attached to the guest.
+ */
+int libxl_cdrom_insert(libxl_ctx *ctx, uint32_t domid, libxl_device_disk *disk,
+ const libxl_asyncop_how *ao_how)
+ LIBXL_EXTERNAL_CALLERS_ONLY;
+
+/*
+ * USB
+ *
+ * For each device removed or added, one of these protocols is available:
+ * - PV (i.e., PVUSB)
+ * - DEVICEMODEL (i.e, qemu)
+ *
+ * PV is available for either PV or HVM domains. DEVICEMODEL is only
+ * available for HVM domains. The caller can additionally specify
+ * "AUTO", in which case the library will try to determine the best
+ * protocol automatically.
+ *
+ * At the moment, the only protocol implemented is PV.
+ *
+ * One can add/remove USB controllers to/from guest, and attach/detach USB
+ * devices to/from USB controllers.
+ *
+ * To add USB controllers and USB devices, one can adding USB controllers
+ * first and then attaching USB devices to some USB controller, or adding
+ * USB devices to guest directly, it will automatically create a USB
+ * controller for USB devices to attach.
+ *
+ * To remove USB controllers or USB devices, one can remove USB devices
+ * under USB controller one by one and then remove USB controller, or
+ * remove USB controller directly, it will remove all USB devices under
+ * it automatically.
+ *
+ */
+/* USB Controllers*/
+int libxl_device_usbctrl_add(libxl_ctx *ctx, uint32_t domid,
+ libxl_device_usbctrl *usbctrl,
+ const libxl_asyncop_how *ao_how)
+ LIBXL_EXTERNAL_CALLERS_ONLY;
+
+int libxl_device_usbctrl_remove(libxl_ctx *ctx, uint32_t domid,
+ libxl_device_usbctrl *usbctrl,
+ const libxl_asyncop_how *ao_how)
+ LIBXL_EXTERNAL_CALLERS_ONLY;
+
+int libxl_device_usbctrl_destroy(libxl_ctx *ctx, uint32_t domid,
+ libxl_device_usbctrl *usbctrl,
+ const libxl_asyncop_how *ao_how)
+ LIBXL_EXTERNAL_CALLERS_ONLY;
+
+libxl_device_usbctrl *libxl_device_usbctrl_list(libxl_ctx *ctx,
+ uint32_t domid, int *num);
+
+void libxl_device_usbctrl_list_free(libxl_device_usbctrl *list, int nr);
+
+
+int libxl_device_usbctrl_getinfo(libxl_ctx *ctx, uint32_t domid,
+ const libxl_device_usbctrl *usbctrl,
+ libxl_usbctrlinfo *usbctrlinfo);
+
+/* USB Devices */
+
+int libxl_device_usbdev_add(libxl_ctx *ctx, uint32_t domid,
+ libxl_device_usbdev *usbdev,
+ const libxl_asyncop_how *ao_how)
+ LIBXL_EXTERNAL_CALLERS_ONLY;
+
+int libxl_device_usbdev_remove(libxl_ctx *ctx, uint32_t domid,
+ libxl_device_usbdev *usbdev,
+ const libxl_asyncop_how *ao_how)
+ LIBXL_EXTERNAL_CALLERS_ONLY;
+
+libxl_device_usbdev *
+libxl_device_usbdev_list(libxl_ctx *ctx, uint32_t domid, int *num);
+
+void libxl_device_usbdev_list_free(libxl_device_usbdev *list, int nr);
+
+/* Network Interfaces */
+int libxl_device_nic_add(libxl_ctx *ctx, uint32_t domid, libxl_device_nic *nic,
+ const libxl_asyncop_how *ao_how)
+ LIBXL_EXTERNAL_CALLERS_ONLY;
+int libxl_device_nic_remove(libxl_ctx *ctx, uint32_t domid,
+ libxl_device_nic *nic,
+ const libxl_asyncop_how *ao_how)
+ LIBXL_EXTERNAL_CALLERS_ONLY;
+int libxl_device_nic_destroy(libxl_ctx *ctx, uint32_t domid,
+ libxl_device_nic *nic,
+ const libxl_asyncop_how *ao_how)
+ LIBXL_EXTERNAL_CALLERS_ONLY;
+
+libxl_device_nic *libxl_device_nic_list(libxl_ctx *ctx,
+ uint32_t domid, int *num)
+ LIBXL_EXTERNAL_CALLERS_ONLY;
+void libxl_device_nic_list_free(libxl_device_nic* list, int num)
+ LIBXL_EXTERNAL_CALLERS_ONLY;
+int libxl_device_nic_getinfo(libxl_ctx *ctx, uint32_t domid,
+ const libxl_device_nic *nic, libxl_nicinfo
*nicinfo)
+ LIBXL_EXTERNAL_CALLERS_ONLY;
+
+/*
+ * Virtual Channels
+ * Channels manifest as consoles with names, see docs/misc/channels.txt
+ */
+libxl_device_channel *libxl_device_channel_list(libxl_ctx *ctx,
+ uint32_t domid,
+ int *num);
+int libxl_device_channel_getinfo(libxl_ctx *ctx, uint32_t domid,
+ const libxl_device_channel *channel,
+ libxl_channelinfo *channelinfo);
+
+/* Virtual TPMs */
+int libxl_device_vtpm_add(libxl_ctx *ctx, uint32_t domid, libxl_device_vtpm
*vtpm,
+ const libxl_asyncop_how *ao_how)
+ LIBXL_EXTERNAL_CALLERS_ONLY;
+int libxl_device_vtpm_remove(libxl_ctx *ctx, uint32_t domid,
+ libxl_device_vtpm *vtpm,
+ const libxl_asyncop_how *ao_how)
+ LIBXL_EXTERNAL_CALLERS_ONLY;
+int libxl_device_vtpm_destroy(libxl_ctx *ctx, uint32_t domid,
+ libxl_device_vtpm *vtpm,
+ const libxl_asyncop_how *ao_how)
+ LIBXL_EXTERNAL_CALLERS_ONLY;
+
+libxl_device_vtpm *libxl_device_vtpm_list(libxl_ctx *ctx,
+ uint32_t domid, int *num)
+ LIBXL_EXTERNAL_CALLERS_ONLY;
+void libxl_device_vtpm_list_free(libxl_device_vtpm*, int num)
+ LIBXL_EXTERNAL_CALLERS_ONLY;
+int libxl_device_vtpm_getinfo(libxl_ctx *ctx, uint32_t domid,
+ const libxl_device_vtpm *vtpm, libxl_vtpminfo
*vtpminfo)
+ LIBXL_EXTERNAL_CALLERS_ONLY;
+
+/* Virtual displays */
+int libxl_device_vdispl_add(libxl_ctx *ctx, uint32_t domid,
+ libxl_device_vdispl *displ,
+ const libxl_asyncop_how *ao_how)
+ LIBXL_EXTERNAL_CALLERS_ONLY;
+int libxl_device_vdispl_remove(libxl_ctx *ctx, uint32_t domid,
+ libxl_device_vdispl *vdispl,
+ const libxl_asyncop_how *ao_how)
+ LIBXL_EXTERNAL_CALLERS_ONLY;
+int libxl_device_vdispl_destroy(libxl_ctx *ctx, uint32_t domid,
+ libxl_device_vdispl *vdispl,
+ const libxl_asyncop_how *ao_how)
+ LIBXL_EXTERNAL_CALLERS_ONLY;
+
+libxl_device_vdispl *libxl_device_vdispl_list(libxl_ctx *ctx,
+ uint32_t domid, int *num)
+ LIBXL_EXTERNAL_CALLERS_ONLY;
+void libxl_device_vdispl_list_free(libxl_device_vdispl* list, int num)
+ LIBXL_EXTERNAL_CALLERS_ONLY;
+int libxl_device_vdispl_getinfo(libxl_ctx *ctx, uint32_t domid,
+ const libxl_device_vdispl *vdispl,
+ libxl_vdisplinfo *vdisplinfo)
+ LIBXL_EXTERNAL_CALLERS_ONLY;
+
+/* Virtual sounds */
+int libxl_device_vsnd_add(libxl_ctx *ctx, uint32_t domid,
+ libxl_device_vsnd *vsnd,
+ const libxl_asyncop_how *ao_how)
+ LIBXL_EXTERNAL_CALLERS_ONLY;
+int libxl_device_vsnd_remove(libxl_ctx *ctx, uint32_t domid,
+ libxl_device_vsnd *vsnd,
+ const libxl_asyncop_how *ao_how)
+ LIBXL_EXTERNAL_CALLERS_ONLY;
+int libxl_device_vsnd_destroy(libxl_ctx *ctx, uint32_t domid,
+ libxl_device_vsnd *vsnd,
+ const libxl_asyncop_how *ao_how)
+ LIBXL_EXTERNAL_CALLERS_ONLY;
+
+libxl_device_vsnd *libxl_device_vsnd_list(libxl_ctx *ctx,
+ uint32_t domid, int *num)
+ LIBXL_EXTERNAL_CALLERS_ONLY;
+void libxl_device_vsnd_list_free(libxl_device_vsnd* list, int num)
+ LIBXL_EXTERNAL_CALLERS_ONLY;
+int libxl_device_vsnd_getinfo(libxl_ctx *ctx, uint32_t domid,
+ const libxl_device_vsnd *vsnd,
+ libxl_vsndinfo *vsndlinfo)
+ LIBXL_EXTERNAL_CALLERS_ONLY;
+
+/* Keyboard */
+int libxl_device_vkb_add(libxl_ctx *ctx, uint32_t domid, libxl_device_vkb *vkb,
+ const libxl_asyncop_how *ao_how)
+ LIBXL_EXTERNAL_CALLERS_ONLY;
+int libxl_device_vkb_remove(libxl_ctx *ctx, uint32_t domid,
+ libxl_device_vkb *vkb,
+ const libxl_asyncop_how *ao_how)
+ LIBXL_EXTERNAL_CALLERS_ONLY;
+int libxl_device_vkb_destroy(libxl_ctx *ctx, uint32_t domid,
+ libxl_device_vkb *vkb,
+ const libxl_asyncop_how *ao_how)
+ LIBXL_EXTERNAL_CALLERS_ONLY;
+
+libxl_device_vkb *libxl_device_vkb_list(libxl_ctx *ctx,
+ uint32_t domid, int *num)
+ LIBXL_EXTERNAL_CALLERS_ONLY;
+void libxl_device_vkb_list_free(libxl_device_vkb* list, int num)
+ LIBXL_EXTERNAL_CALLERS_ONLY;
+int libxl_device_vkb_getinfo(libxl_ctx *ctx, uint32_t domid,
+ const libxl_device_vkb *vkb,
+ libxl_vkbinfo *vkbinfo)
+ LIBXL_EXTERNAL_CALLERS_ONLY;
+
+/* Framebuffer */
+int libxl_device_vfb_add(libxl_ctx *ctx, uint32_t domid, libxl_device_vfb *vfb,
+ const libxl_asyncop_how *ao_how)
+ LIBXL_EXTERNAL_CALLERS_ONLY;
+int libxl_device_vfb_remove(libxl_ctx *ctx, uint32_t domid,
+ libxl_device_vfb *vfb,
+ const libxl_asyncop_how *ao_how)
+ LIBXL_EXTERNAL_CALLERS_ONLY;
+int libxl_device_vfb_destroy(libxl_ctx *ctx, uint32_t domid,
+ libxl_device_vfb *vfb,
+ const libxl_asyncop_how *ao_how)
+ LIBXL_EXTERNAL_CALLERS_ONLY;
+
+/* 9pfs */
+int libxl_device_p9_remove(libxl_ctx *ctx, uint32_t domid,
+ libxl_device_p9 *p9,
+ const libxl_asyncop_how *ao_how)
+ LIBXL_EXTERNAL_CALLERS_ONLY;
+int libxl_device_p9_destroy(libxl_ctx *ctx, uint32_t domid,
+ libxl_device_p9 *p9,
+ const libxl_asyncop_how *ao_how)
+ LIBXL_EXTERNAL_CALLERS_ONLY;
+
+/* pvcalls interface */
+int libxl_device_pvcallsif_remove(libxl_ctx *ctx, uint32_t domid,
+ libxl_device_pvcallsif *pvcallsif,
+ const libxl_asyncop_how *ao_how)
+ LIBXL_EXTERNAL_CALLERS_ONLY;
+int libxl_device_pvcallsif_destroy(libxl_ctx *ctx, uint32_t domid,
+ libxl_device_pvcallsif *pvcallsif,
+ const libxl_asyncop_how *ao_how)
+ LIBXL_EXTERNAL_CALLERS_ONLY;
+
+/* PCI Passthrough */
+int libxl_device_pci_add(libxl_ctx *ctx, uint32_t domid,
+ libxl_device_pci *pcidev,
+ const libxl_asyncop_how *ao_how)
+ LIBXL_EXTERNAL_CALLERS_ONLY;
+int libxl_device_pci_remove(libxl_ctx *ctx, uint32_t domid,
+ libxl_device_pci *pcidev,
+ const libxl_asyncop_how *ao_how)
+ LIBXL_EXTERNAL_CALLERS_ONLY;
+int libxl_device_pci_destroy(libxl_ctx *ctx, uint32_t domid,
+ libxl_device_pci *pcidev,
+ const libxl_asyncop_how *ao_how)
+ LIBXL_EXTERNAL_CALLERS_ONLY;
+
+libxl_device_pci *libxl_device_pci_list(libxl_ctx *ctx, uint32_t domid,
+ int *num);
+
+/*
+ * Turns the current process into a backend device service daemon
+ * for a driver domain.
+ *
+ * From a libxl API point of view, this starts a long-running
+ * operation. That operation consists of "being a driver domain"
+ * and never completes.
+ *
+ * Attempting to abort this operation is not advisable; proper
+ * shutdown of the driver domain task is not supported.
+ */
+int libxl_device_events_handler(libxl_ctx *ctx,
+ const libxl_asyncop_how *ao_how)
+ LIBXL_EXTERNAL_CALLERS_ONLY;
+
+/*
+ * Functions related to making devices assignable -- that is, bound to
+ * the pciback driver, ready to be given to a guest via
+ * libxl_pci_device_add.
+ *
+ * - ..._add() will unbind the device from its current driver (if
+ * already bound) and re-bind it to pciback; at that point it will be
+ * ready to be assigned to a VM. If rebind is set, it will store the
+ * path to the old driver in xenstore so that it can be handed back to
+ * dom0 on restore.
+ *
+ * - ..._remove() will unbind the device from pciback, and if
+ * rebind is non-zero, attempt to assign it back to the driver
+ * from whence it came.
+ *
+ * - ..._list() will return a list of the PCI devices available to be
+ * assigned.
+ *
+ * add and remove are idempotent: if the device in question is already
+ * added or is not bound, the functions will emit a warning but return
+ * SUCCESS.
+ */
+int libxl_device_pci_assignable_add(libxl_ctx *ctx, libxl_device_pci *pcidev,
int rebind);
+int libxl_device_pci_assignable_remove(libxl_ctx *ctx, libxl_device_pci
*pcidev, int rebind);
+libxl_device_pci *libxl_device_pci_assignable_list(libxl_ctx *ctx, int *num);
+
+/* CPUID handling */
+int libxl_cpuid_parse_config(libxl_cpuid_policy_list *cpuid, const char* str);
+int libxl_cpuid_parse_config_xend(libxl_cpuid_policy_list *cpuid,
+ const char* str);
+#if LIBXL_API_VERSION < 0x041400
+/*
+ * Dropped from the API in Xen 4.14. At the time of writing, these functions
+ * don't appear to ever have had external callers.
+ *
+ * These have always been used internally during domain construction, and
+ * can't easily be used externally because of their implicit parameters in
+ * other pieces of global state.
+ *
+ * Furthermore, an API user can't usefully determine whether they get
+ * libxl_cpuid (the real implementation) or libxl_nocpuid (no-op stubs).
+ *
+ * The internal behaviour of these functions also needs to change. Therefore
+ * for simplicitly, provide the no-op stubs. Yes technically this is an API
+ * change in some cases for existing software, but there is 0 of that in
+ * practice.
+ */
+static inline void libxl_cpuid_apply_policy(libxl_ctx *ctx
__attribute__((unused)),
+ uint32_t domid
__attribute__((unused)))
+{}
+static inline void libxl_cpuid_set(libxl_ctx *ctx __attribute__((unused)),
+ uint32_t domid __attribute__((unused)),
+ libxl_cpuid_policy_list cpuid
__attribute__((unused)))
+{}
+#endif
+
+/*
+ * Functions for allowing users of libxl to store private data
+ * relating to a domain. The data is an opaque sequence of bytes and
+ * is not interpreted or used by libxl.
+ *
+ * Data is indexed by the userdata userid, which is a short printable
+ * ASCII string. The following list is a registry of userdata userids
+ * (the registry may be updated by posting a patch to xen-devel):
+ *
+ * userid Data contents
+ * "xl" domain config file in xl format, Unix line endings
+ * "libvirt-xml" domain config file in libvirt XML format. See
+ * http://libvirt.org/formatdomain.html
+ * "domain-userdata-lock" lock file to protect domain userdata in libxl.
+ * It's a per-domain lock. Applications should
+ * not touch this file.
+ * "libxl-json" libxl_domain_config object in JSON format, generated
+ * by libxl. Applications should not access this file
+ * directly. This file is protected by domain-userdata-lock
+ * for against Read-Modify-Write operation and domain
+ * destruction.
+ *
+ * libxl does not enforce the registration of userdata userids or the
+ * semantics of the data. For specifications of the data formats
+ * see the code or documentation for the libxl caller in question.
+ */
+int libxl_userdata_store(libxl_ctx *ctx, uint32_t domid,
+ const char *userdata_userid,
+ const uint8_t *data, int datalen)
+ LIBXL_EXTERNAL_CALLERS_ONLY;
+ /* If datalen==0, data is not used and the user data for
+ * that domain and userdata_userid is deleted. */
+int libxl_userdata_retrieve(libxl_ctx *ctx, uint32_t domid,
+ const char *userdata_userid,
+ uint8_t **data_r, int *datalen_r)
+ LIBXL_EXTERNAL_CALLERS_ONLY;
+ /* On successful return, *data_r is from malloc.
+ * If there is no data for that domain and userdata_userid,
+ * *data_r and *datalen_r will be set to 0.
+ * data_r and datalen_r may be 0.
+ * On error return, *data_r and *datalen_r are undefined.
+ */
+int libxl_userdata_unlink(libxl_ctx *ctx, uint32_t domid,
+ const char *userdata_userid);
+
+
+int libxl_get_physinfo(libxl_ctx *ctx, libxl_physinfo *physinfo);
+int libxl_set_vcpuaffinity(libxl_ctx *ctx, uint32_t domid, uint32_t vcpuid,
+ const libxl_bitmap *cpumap_hard,
+ const libxl_bitmap *cpumap_soft);
+int libxl_set_vcpuaffinity_force(libxl_ctx *ctx, uint32_t domid,
+ uint32_t vcpuid,
+ const libxl_bitmap *cpumap_hard,
+ const libxl_bitmap *cpumap_soft);
+int libxl_set_vcpuaffinity_all(libxl_ctx *ctx, uint32_t domid,
+ unsigned int max_vcpus,
+ const libxl_bitmap *cpumap_hard,
+ const libxl_bitmap *cpumap_soft);
+
+#if defined (LIBXL_API_VERSION) && LIBXL_API_VERSION < 0x040500
+
+#define libxl_set_vcpuaffinity(ctx, domid, vcpuid, map) \
+ libxl_set_vcpuaffinity((ctx), (domid), (vcpuid), (map), NULL)
+#define libxl_set_vcpuaffinity_all(ctx, domid, max_vcpus, map) \
+ libxl_set_vcpuaffinity_all((ctx), (domid), (max_vcpus), (map), NULL)
+
+#endif
+
+int libxl_domain_set_nodeaffinity(libxl_ctx *ctx, uint32_t domid,
+ libxl_bitmap *nodemap);
+int libxl_domain_get_nodeaffinity(libxl_ctx *ctx, uint32_t domid,
+ libxl_bitmap *nodemap);
+int libxl_set_vcpuonline(libxl_ctx *ctx, uint32_t domid,
+ libxl_bitmap *cpumap,
+ const libxl_asyncop_how *ao_how)
+ LIBXL_EXTERNAL_CALLERS_ONLY;
+#if defined(LIBXL_API_VERSION) && LIBXL_API_VERSION < 0x041300
+static inline int libxl_set_vcpuonline_0x041200(libxl_ctx *ctx,
+ uint32_t domid,
+ libxl_bitmap *cpumap)
+{
+ return libxl_set_vcpuonline(ctx, domid, cpumap, NULL);
+}
+#define libxl_set_vcpuonline libxl_set_vcpuonline_0x041200
+#endif
+
+/* A return value less than 0 should be interpreted as a libxl_error, while a
+ * return value greater than or equal to 0 should be interpreted as a
+ * libxl_scheduler. */
+int libxl_get_scheduler(libxl_ctx *ctx);
+
+/* Per-scheduler parameters */
+int libxl_sched_credit_params_get(libxl_ctx *ctx, uint32_t poolid,
+ libxl_sched_credit_params *scinfo);
+int libxl_sched_credit_params_set(libxl_ctx *ctx, uint32_t poolid,
+ libxl_sched_credit_params *scinfo);
+int libxl_sched_credit2_params_get(libxl_ctx *ctx, uint32_t poolid,
+ libxl_sched_credit2_params *scinfo);
+int libxl_sched_credit2_params_set(libxl_ctx *ctx, uint32_t poolid,
+ libxl_sched_credit2_params *scinfo);
+
+/* Scheduler Per-domain parameters */
+
+#define LIBXL_DOMAIN_SCHED_PARAM_WEIGHT_DEFAULT -1
+#define LIBXL_DOMAIN_SCHED_PARAM_CAP_DEFAULT -1
+#define LIBXL_DOMAIN_SCHED_PARAM_PERIOD_DEFAULT -1
+#define LIBXL_DOMAIN_SCHED_PARAM_SLICE_DEFAULT -1
+#define LIBXL_DOMAIN_SCHED_PARAM_LATENCY_DEFAULT -1
+#define LIBXL_DOMAIN_SCHED_PARAM_EXTRATIME_DEFAULT -1
+#define LIBXL_DOMAIN_SCHED_PARAM_BUDGET_DEFAULT -1
+
+/* Per-VCPU parameters */
+#define LIBXL_SCHED_PARAM_VCPU_INDEX_DEFAULT -1
+
+/* Get the per-domain scheduling parameters.
+ * For schedulers that support per-vcpu settings (e.g., RTDS),
+ * calling *_domain_get functions will get default scheduling
+ * parameters.
+ */
+int libxl_domain_sched_params_get(libxl_ctx *ctx, uint32_t domid,
+ libxl_domain_sched_params *params);
+
+/* Set the per-domain scheduling parameters.
+ * For schedulers that support per-vcpu settings (e.g., RTDS),
+ * calling *_domain_set functions will set all vcpus with the same
+ * scheduling parameters.
+ */
+int libxl_domain_sched_params_set(libxl_ctx *ctx, uint32_t domid,
+ const libxl_domain_sched_params *params);
+
+/* Get the per-vcpu scheduling parameters */
+int libxl_vcpu_sched_params_get(libxl_ctx *ctx, uint32_t domid,
+ libxl_vcpu_sched_params *params);
+
+/* Get the per-vcpu scheduling parameters of all vcpus of a domain */
+int libxl_vcpu_sched_params_get_all(libxl_ctx *ctx, uint32_t domid,
+ libxl_vcpu_sched_params *params);
+
+/* Set the per-vcpu scheduling parameters */
+int libxl_vcpu_sched_params_set(libxl_ctx *ctx, uint32_t domid,
+ const libxl_vcpu_sched_params *params);
+
+/* Set the per-vcpu scheduling parameters of all vcpus of a domain */
+int libxl_vcpu_sched_params_set_all(libxl_ctx *ctx, uint32_t domid,
+ const libxl_vcpu_sched_params *params);
+
+int libxl_send_trigger(libxl_ctx *ctx, uint32_t domid,
+ libxl_trigger trigger, uint32_t vcpuid,
+ const libxl_asyncop_how *ao_how)
+ LIBXL_EXTERNAL_CALLERS_ONLY;
+#if defined(LIBXL_API_VERSION) && LIBXL_API_VERSION < 0x041300
+static inline int libxl_send_trigger_0x041200(
+ libxl_ctx *ctx, uint32_t domid, libxl_trigger trigger, uint32_t vcpuid)
+{
+ return libxl_send_trigger(ctx, domid, trigger, vcpuid, NULL);
+}
+#define libxl_send_trigger libxl_send_trigger_0x041200
+#endif
+int libxl_send_sysrq(libxl_ctx *ctx, uint32_t domid, char sysrq);
+int libxl_send_debug_keys(libxl_ctx *ctx, char *keys);
+int libxl_set_parameters(libxl_ctx *ctx, char *params);
+
+typedef struct libxl__xen_console_reader libxl_xen_console_reader;
+
+libxl_xen_console_reader *
+ libxl_xen_console_read_start(libxl_ctx *ctx, int clear);
+int libxl_xen_console_read_line(libxl_ctx *ctx,
+ libxl_xen_console_reader *cr,
+ char **line_r);
+void libxl_xen_console_read_finish(libxl_ctx *ctx,
+ libxl_xen_console_reader *cr);
+
+uint32_t libxl_vm_get_start_time(libxl_ctx *ctx, uint32_t domid);
+
+char *libxl_tmem_list(libxl_ctx *ctx, uint32_t domid, int use_long);
+int libxl_tmem_freeze(libxl_ctx *ctx, uint32_t domid);
+int libxl_tmem_thaw(libxl_ctx *ctx, uint32_t domid);
+int libxl_tmem_set(libxl_ctx *ctx, uint32_t domid, char* name,
+ uint32_t set);
+int libxl_tmem_shared_auth(libxl_ctx *ctx, uint32_t domid, char* uuid,
+ int auth);
+int libxl_tmem_freeable(libxl_ctx *ctx);
+
+int libxl_get_freecpus(libxl_ctx *ctx, libxl_bitmap *cpumap);
+
+/*
+ * Set poolid to LIBXL_CPUOOL_POOLID_ANY to have Xen choose a
+ * free poolid for you.
+ */
+#define LIBXL_CPUPOOL_POOLID_ANY 0xFFFFFFFF
+int libxl_cpupool_create(libxl_ctx *ctx, const char *name,
+ libxl_scheduler sched,
+ libxl_bitmap cpumap, libxl_uuid *uuid,
+ uint32_t *poolid);
+int libxl_cpupool_destroy(libxl_ctx *ctx, uint32_t poolid);
+int libxl_cpupool_rename(libxl_ctx *ctx, const char *name, uint32_t poolid);
+int libxl_cpupool_cpuadd(libxl_ctx *ctx, uint32_t poolid, int cpu);
+int libxl_cpupool_cpuadd_node(libxl_ctx *ctx, uint32_t poolid, int node, int
*cpus);
+int libxl_cpupool_cpuadd_cpumap(libxl_ctx *ctx, uint32_t poolid,
+ const libxl_bitmap *cpumap);
+int libxl_cpupool_cpuremove(libxl_ctx *ctx, uint32_t poolid, int cpu);
+int libxl_cpupool_cpuremove_node(libxl_ctx *ctx, uint32_t poolid, int node,
int *cpus);
+int libxl_cpupool_cpuremove_cpumap(libxl_ctx *ctx, uint32_t poolid,
+ const libxl_bitmap *cpumap);
+int libxl_cpupool_movedomain(libxl_ctx *ctx, uint32_t poolid, uint32_t domid);
+int libxl_cpupool_info(libxl_ctx *ctx, libxl_cpupoolinfo *info, uint32_t
poolid);
+
+int libxl_domid_valid_guest(uint32_t domid);
+
+int libxl_flask_context_to_sid(libxl_ctx *ctx, char *buf, size_t len,
+ uint32_t *ssidref);
+int libxl_flask_sid_to_context(libxl_ctx *ctx, uint32_t ssidref, char **buf,
+ size_t *len);
+int libxl_flask_getenforce(libxl_ctx *ctx);
+int libxl_flask_setenforce(libxl_ctx *ctx, int mode);
+int libxl_flask_loadpolicy(libxl_ctx *ctx, void *policy, uint32_t size);
+
+int libxl_ms_vm_genid_generate(libxl_ctx *ctx, libxl_ms_vm_genid *id);
+bool libxl_ms_vm_genid_is_zero(const libxl_ms_vm_genid *id);
+void libxl_ms_vm_genid_copy(libxl_ctx *ctx, libxl_ms_vm_genid *dst,
+ const libxl_ms_vm_genid *src);
+
+#if defined(__i386__) || defined(__x86_64__)
+int libxl_psr_cmt_attach(libxl_ctx *ctx, uint32_t domid);
+int libxl_psr_cmt_detach(libxl_ctx *ctx, uint32_t domid);
+int libxl_psr_cmt_domain_attached(libxl_ctx *ctx, uint32_t domid);
+int libxl_psr_cmt_enabled(libxl_ctx *ctx);
+int libxl_psr_cmt_get_total_rmid(libxl_ctx *ctx, uint32_t *total_rmid);
+int libxl_psr_cmt_get_l3_cache_size(libxl_ctx *ctx,
+ uint32_t socketid,
+ uint32_t *l3_cache_size);
+int libxl_psr_cmt_get_cache_occupancy(libxl_ctx *ctx,
+ uint32_t domid,
+ uint32_t socketid,
+ uint32_t *l3_cache_occupancy);
+
+int libxl_psr_cmt_type_supported(libxl_ctx *ctx, libxl_psr_cmt_type type);
+int libxl_psr_cmt_get_sample(libxl_ctx *ctx,
+ uint32_t domid,
+ libxl_psr_cmt_type type,
+ uint64_t scope,
+ uint64_t *sample_r,
+ uint64_t *tsc_r);
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