Commit Graph
258 Commits
Author SHA1 Message Date
Wei Liu d337764d9b tools: bump some library version numbers to 4.8
It is a pretty safe thing to do and would avoid accidentally overwrite
the old libraries when doing development.

Bump all version numbers that are currently 4.7 to 4.8. That includes
libxc, libxlu, libxl and libvchan.

Signed-off-by: Wei Liu <wei.liu2@citrix.com>
Acked-by: Ian Jackson <ian.jackson@eu.citrix.com>
2016-06-14 18:32:10 +01:00
Wei Liu 116d8bab9b tools: bump library version numbers
The following libraries are checked:
1. libxc, version number bumped
2. libxl, version number bumped
3. libxlu, no development in 4.7 cycle, but depends on libxl, version
   number bumped
4. libs/*, new in 4.7 cycle, version numbers not bumped
5. libxenstore, no development in 4.7 cycle, version number not bumped
6. libxenstat, no development in 4.7 cycle, version number not bumped
7. libvchan, depends on  xengnttab library, API changed, version number
   bumped

Signed-off-by: Wei Liu <wei.liu2@citrix.com>
Acked-by: Ian Jackson <ian.jackson@eu.citrix.com>
Release-acked-by: Wei Liu <wei.liu2@citrix.com>
2016-05-24 16:26:37 +01:00
Andrew Cooper e5a4478f86 tools/libxc: Expose the automatically generated cpu featuremask information
Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com>
Acked-by: Wei Liu <wei.liu2@citrix.com>
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
2016-04-08 21:55:01 +01:00
Andrew Cooper 99ba14f3cf tools/libxc: Fix use of zlib-options when building the domain builder
c/s de0f8c7c changed the use of zlib-options, and moved it from being locally
generated to coming from ./configure.

However, it neglected to modify the users of zlib-options.  The curious use of
$(call ...) was to select either the -D or -l options as appropriate, but c/s
de0f8c7c broke this by loosing the `grep`.

Instead, use $(filter ...) to pick out either the -D or -l options.  This
fixes the build with Clang, which complains at passing '-llzma' when trying
to compile xc_dom_bzimageloader.c to xc_dom_bzimageloader.o.

Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com>
Acked-by: Wei Liu <wei.liu2@citrix.com>
Acked-by: Roger Pau Monné <roger.pau@citrix.com>
2016-02-15 17:05:55 +00:00
Ian Campbell 3237645813 tools: Do not expose all builds to unstable hypercall APIs by default
Currently __XEN_TOOLS__ is defined in the global CFLAGS used for tools
builds, exposing them all to the various unstable hypercall interfaces.

However there are places where we do not want this (in particular all
the stable libraries now under tools/libs), and there is a risk of
such uses slipping in unnoticed (currently there are none, but I
tripped over the mixed nature of the HVMOPs just now in some new code
I was putting together).

Instead only define __XEN_TOOLS__ for things which explicitly want the
unstable APIs. The vast majority of these are consumers of libxenctrl,
which have opted into unstable interfaces by using libxenctrl already,
so adding -D__XEN_TOOLS__ to CFLAGS_libxenctrl covers these without
needing to patch the dozen or so tools manually.

The libxc build itself, which doesn't use CFLAGS_libxenctrl, now needs
the define too. As does gdbsx's own low level hypercall binding
library xg.

hvmloader no longer needs to undefine the symbol.

The ocaml evtchn bindings don't actually need sysctl.h and therefore
don't actually need __XEN_TOOLS__ either.

qemu-xen-traditional doesn't use CFLAGS_libxenctrl and so we pass the
define there (via --extra-cflags) too.

Having removed __XEN_TOOLS__ replace it with
__XEN_INTERFACE_VERSION__=__XEN_LATEST_INTERFACE_VERSION__ so that in
tree code is always using the latest APIs.

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Acked-by: Ian Jackson <ian.jackson@eu.citrix.com>
Acked-by: Andrew Cooper <andrew.cooper3@citrix.com>
2016-02-04 15:20:40 +00:00
Ian Campbell 3248691679 tools: Refactor foreign memory mapping into libxenforeignmemory
libxenforeignmemory will provide a stable API and ABI for mapping
foreign domain memory (subject to appropriate privileges).

The new library exposes an interface equivalent to
xc_map_foreign_memory_bulk, which all the other
xc_map_foreign_memory_* functions (which remain in libxc) are
implemented in terms of.

Upon request (via #define XC_WANT_COMPAT_MAP_FOREIGN_API) libxenctrl
will provide a compat API for the old names. This is used by qemu-xen
and qemu-trad as well as various in tree things (which required
de-dupping various #includes in some too to get the #define before the
first).

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Acked-by: Wei Liu <wei.liu2@citrix.com>
Acked-by: Ian Jackson <ian.jackson@eu.citrix.com>
[ ijc -- updated MINIOS_UPSTREAM_REVISION and QEMU_TRADITIONAL_REVISION ]
2016-01-22 12:24:03 +00:00
Ian Campbell 3e9b0d5408 tools: Refactor hypercall calling wrappers into libxencall.
libxencall will provide a stable API and ABI for calling hypercalls
(although those hypercalls themselves may not have a stable API). As
well as the hypercall buffer infrastructure needed in order to safely
provide pointer arguments to hypercalls.

libxenctrl encapsulates a instance of this interface, so users of that
library are not currently subjected to any actual changes. However all
hypercalls made internally by libxc now use the correct interface. It
is expected that most users of this library will be other libraries
providing a higher level interface, rather than applications directly.

Only the basic functionality to allocate hypercall safe memory is
moved, the type safe stuff and bounce buffers remain in libxc.

Note that the functionality to map foreign pages using privcmd is not
yet moved, meaning that an xc_interface will now contain two open
privcmd file descriptors. Foreign memory mapping is logically separate
functionality and will be moved into its own library.

The new library uses a version script to ensure that only expected
symbols are exported and to version them such that ABI guarantees can
be kept in the future.

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Acked-by: Wei Liu <wei.liu2@citrix.com>
[ ijc -- updated MINIOS_UPSTREAM_REVISION and QEMU_TRADITIONAL_REVISION ]
2016-01-22 12:23:30 +00:00
Ian Campbell 7a3543df83 tools/libxc: Remove osdep indirection for privcmd
The alternative backend (a xen-api/xapi shim) is no longer around and
so this stuff is now just baggage which is getting in the way of
refactoring libxenctrl.

Nested virt probably suffices for this use case now.

This was the last component of the osdep infrastructure, so all the
dynamic loading etc stuff all falls away too.

As part of this I was forced to investigate the twisty
xc_map_foreign_* maze, which I have added to the
toolstack-library-apis doc in the hopes of doing something sensible.

NetBSD and Solaris now call xc_map_foreign_bulk_compat directly from
their xc_map_foreign_bulk, which could have been achieved by using
some ifdefs around a renamed function. This will fall out in the wash
when these functions move to their own library.

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Acked-by: David Scott <dave.scott@citrix.com>
Acked-by: Wei Liu <wei.liu2@citrix.com>
2016-01-22 12:22:38 +00:00
Ian Campbell a71ad0fead tools: Refactor /dev/xen/gnt{dev,shr} wrappers into libxengnttab.
libxengnttab will provide a stable API and ABI for accessing the
grant table devices.

The functions are moved into the xengnt{tab,shr} namespace to make a
clean break from libxc and avoid ambiguity regarding which interfaces
are stable.

All in-tree users are updated to use the new names.

Upon request (via #define XC_WANT_COMPAT_GNTTAB_API) libxenctrl will
provide a compat API for the old names. This is used by qemu-xen for
the time being. qemu-xen-traditional is updated in lockstep.

This leaves a few grant table related functions which go via privcmd
(GNTTABOP) rather than ioctls on the /dev/xen/gnt* devices in
libxenctrl. Specifically:

  - xc_gnttab_get_version
  - xc_gnttab_map_table_v1
  - xc_gnttab_map_table_v2
  - xc_gnttab_op

These functions do not appear to be needed by qemu-dm, qemu-pv
(provision of device model to HVM guests and PV backends respectively)
or by libvchan suggesting they are not needed by non-toolstack uses of
event channels.

The new library uses a version script to ensure that only expected
symbols are exported and to version them such that ABI guarantees can
be kept in the future.

After this change libxenvchan no longer needs to link against
libxenctrl. It still needs xenctrl.h in one file for xen_mb and
friends.

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Acked-by: Wei Liu <wei.liu2@citrix.com>
[ ijc -- updated MINIOS_UPSTREAM_REVISION and QEMU_TRADITIONAL_REVISION ]
2016-01-22 12:22:27 +00:00
Ian Campbell 05e88ac015 tools/libxc: Remove osdep indirection for xc_gnt{shr,tab}
The alternative backend (a xen-api/xapi shim) is no longer around and
so this stuff is now just baggage which is getting in the way of
refactoring libxenctrl.

Nested virt probably suffices for this use case now.

It is now necessary to provide explicit versions of things for
platforms which do not implement this functionality, since the osdep
dispatcher cannot fulfil this need any more. These are provided by
appropriate xc_nognt???.c files which are compiled and linked on the
appropriate platforms. In them open and close return failure and
everything else aborts, since if open fails they should never be
called.

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Acked-by: Wei Liu <wei.liu2@citrix.com>
2016-01-22 12:21:39 +00:00
Ian Campbell b7f76a699d tools: Refactor /dev/xen/evtchn wrappers into libxenevtchn.
libxenevtchn will provide a stable API and ABI for accessing the
evtchn device.

The functions are moved into the xenevtchn namespace to make a clean
break from libxc and avoid ambiguity regarding which interfaces are
stable.

All in-tree users are updated to use the new names.

Upon request (via #define XC_WANT_COMPAT_EVTCHN_API) libxenctrl will
provide a compat API for the old names. This is used by qemu-xen for
the time being. qemu-xen-traditional is updated in lockstep.

This leaves a few event channel related functions which go via privcmd
(EVTCHNOP) rather than ioctls on the /dev/xen/evtchn device in
libxenctrl. Specifically:

 - xc_evtchn_alloc_unbound
 - xc_evtchn_reset
 - xc_evtchn_status

Note that xc_evtchn_alloc_unbound's functionality is also provided by
xenevtchn_bind_unbound_port() (née xc_evtchn_bind_unbound_port) and is
probably redundant.

These functions do not appear to be needed by qemu-dm, qemu-pv
(provision of device model to HVM guests and PV backends respectively)
or by libvchan suggesting they are not needed by non-toolstack uses of
event channels. QEMU does use these in hw/xenpv/xen_domainbuild.c but
that is a "toolstack use".

The new library uses a version script to ensure that only expected
symbols are exported and to version them such that ABI guarantees can
be kept in the future.

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Acked-by: Wei Liu <wei.liu2@citrix.com>
Acked-by: Ian Jackson <ian.jackson@eu.citrix.com>
[ ijc -- updated MINIOS_UPSTREAM_REVISION and QEMU_TRADITIONAL_REVISION ]
2016-01-22 12:21:07 +00:00
Ian Campbell 5d3dc86715 tools: Refactor "xentoollog" into its own library
In attempting to disaggregate libxenctrl I found that many of the
pieces were going to want access to this library, so split it out (as
it probably should always have been).

Various build adjustments are needed. In particular things which use
xtl_* themselves now need to explicity link against the library.

This has a nice side effect which is that users of libxl no longer
need to link against libxenctrl just to create a logger, which was
counter to the principal that applications using libxl shouldn't be
required to look behind the curtain. This means that xl no longer
links against libxenctrl.

The new library uses a version script to ensure that only expected
symbols are exported and to version them such that ABI guarantees can
be kept in the future.

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Acked-by: Ian Jackson <ian.jackson@eu.citrix.com>
Acked-by: Wei Liu <wei.liu2@citrix.com>
[ ijc -- dropped QEMU_TRADITIONAL_REVISION update, this had since
         progressed to 569eac99e8dd which is after 9fad9ed28583, the
         commit needed here. ]
2016-01-05 11:45:26 +00:00
Ian Campbell ec07125761 Revert "tools: Refactor "xentoollog" into its own library"
This reverts commit c7d3afbb44 which
broke the libvirt build, since libvirt uses xtl_* and hence needs
updating to link against the new library when necessary.

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
2015-12-10 10:21:34 +00:00
Ian Campbell c7d3afbb44 tools: Refactor "xentoollog" into its own library
In attempting to disaggregate libxenctrl I found that many of the
pieces were going to want access to this library, so split it out (as
it probably should always have been).

Various build adjustments are needed. In particular things which use
xtl_* themselves now need to explicity link against the library.

This has a nice side effect which is that users of libxl no longer
need to link against libxenctrl just to create a logger, which was
counter to the principal that applications using libxl shouldn't be
required to look behind the curtain. This means that xl no longer
links against libxenctrl.

The new library uses a version script to ensure that only expected
symbols are exported and to version them such that ABI guarantees can
be kept in the future.

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Acked-by: Ian Jackson <ian.jackson@eu.citrix.com>
Acked-by: Wei Liu <wei.liu2@citrix.com>
[ ijc -- Update QEMU_TRADITIONAL_REVISION and MINIOS_UPSTREAM_REVISION ]
2015-12-09 12:37:00 +00:00
Roger Pau Monne a3d07f8262 libxc: remove dead HVM building code
Remove xc_hvm_build_x86.c and xc_hvm_build_arm.c since xc_hvm_build is not
longer used in order to create HVM guests.

Signed-off-by: Roger Pau Monné <roger.pau@citrix.com>
Acked-by: Wei Liu <wei.liu2@citrix.com>
Reviewed-by: Andrew Cooper <andrew.cooper3@citrix.com>
Cc: Ian Jackson <ian.jackson@eu.citrix.com>
Cc: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Cc: Ian Campbell <ian.campbell@citrix.com>
Cc: Wei Liu <wei.liu2@citrix.com>
2015-10-08 12:22:45 +01:00
Roger Pau Monne ad787bafcd libxc: introduce a domain loader for HVM guest firmware
Introduce a very simple (and dummy) domain loader to be used to load the
firmware (hvmloader) into HVM guests. Since hmvloader is just a 32bit elf
executable the loader is fairly simple.

Since the order in which loaders are tested cannot be arranged, prevent the
current elfloader from trying to boot a kernel that doesn't contain Xen
ELFNOTES.

Signed-off-by: Roger Pau Monné <roger.pau@citrix.com>
Cc: Ian Jackson <ian.jackson@eu.citrix.com>
Cc: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Cc: Ian Campbell <ian.campbell@citrix.com>
Cc: Wei Liu <wei.liu2@citrix.com>
Cc: Andrew Cooper <andrew.cooper3@citrix.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
Reviewed-by: Andrew Cooper <andrew.cooper3@citrix.com>
Acked-by: Wei Liu <wei.liu2@citrix.com>
2015-10-08 12:22:33 +01:00
Ian Jackson 10feec4519 tools: Update sonames for 4.6 RCs
Update libxc to 4.6.
Update libxl to 4.6.
Update libxlu to 4.6.

I did
  git-grep 'MAJOR.*='
and also to check I had everything
  git-grep 'SONAME_LDFLAG' | egrep -v 'MAJOR' |less

The other, un-updated, libraries are:
  blktap2 (control, libvhd) 1.0  in-tree users only, no ABI changes
  libfsimage    1.0      no ABI changes
  libvchan      1.0      no ABI changes
  libxenstat    0.0 (!)  no ABI changes
  libxenstore   3.0      no ABI changes

My assertions "no ABI changes" are based on the output of
  git-diff origin/stable-4.5..staging .
and similar runes, sometimes limited to .h files.

Signed-off-by: Ian Jackson <Ian.Jackson@eu.citrix.com>
CC: Ian Campbell <ian.campbell@citrix.com>
Acked-by: Wei Liu <wei.liu2@citrix.com>
---
v2: Bump libxlu too.  [ Reported by Wei Liu. ]
2015-08-11 15:39:01 +01:00
Andrew Cooper b15bc4345e tools/libxc: Remove legacy migration implementation
It is no longer used.

One complication is that xc_map_m2p() has users in xc_offline_page.c,
xen-mfndump and xen-mceinj.  Move its implementation into
xc_offline_page (for want of a better location) beside it's current
user.

Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com>
CC: Ian Campbell <Ian.Campbell@citrix.com>
CC: Ian Jackson <Ian.Jackson@eu.citrix.com>
CC: Wei Liu <wei.liu2@citrix.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
[ ijc -- drop mentions of removed files from MAINTAINERS ]
2015-07-28 11:11:27 +01:00
Tamas K Lengyel 3a54343af0 libxc: add support to altp2m hvmops
Wrappers to issue altp2m hvmops.

Signed-off-by: Tamas K Lengyel <tlengyel@novetta.com>
Signed-off-by: Ravi Sahita <ravi.sahita@intel.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
Release-acked-by: Wei Liu <wei.liu2@citrix.com>
2015-07-24 13:42:12 +02:00
Andrew Cooper 210b481752 tools/libxc+libxl+xl: Save v2 streams
This is a complicated set of changes which must be done together for
bisectability.

 * libxl-save-helper is updated to unconditionally use libxc migration v2.
 * libxl compatibility workarounds in libxc are disabled for save operations.
 * libxl__stream_write_start() is logically spliced into the event location
   where libxl__xc_domain_save() used to reside.
 * Ownership of the helper state moves into stream_write_state.
 * xl is updated to indicate that the stream is now v2

Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com>
Acked-by: Ian Jackson <Ian.Jackson@eu.citrix.com>
CC: Ian Campbell <Ian.Campbell@citrix.com>
CC: Wei Liu <wei.liu2@citrix.com>

---
v4:
 * Don't use _init() needlessly

v3: Many small changes, follwing similar review to the restore side
2015-07-15 11:22:54 +01:00
Andrew Cooper 3a9ace0147 tools/libxc+libxl+xl: Restore v2 streams
This is a complicated set of changes which must be done together for
bisectability.

 * libxl-save-helper is updated to unconditionally use libxc migration
   v2.
 * libxl compatibility workarounds in libxc are disabled for restore
   operations.
 * libxl__stream_read_start() is logically spliced into the event
   location where libxl__xc_domain_restore() used to reside.
 * Ownership of the save_helper_state moves to stream_read_state.

The parameters 'hvm', 'pae', and 'superpages' were previously
superfluous, and are completely unused in migration
v2. callbacks->toolstack_restore is handled via a migration v2 record
now, rather than via a callback from libxc.

NB: this change breaks Remus.  Further untangling needs to happen
before Remus will function.

Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com>
Acked-by: Ian Jackson <Ian.Jackson@eu.citrix.com>
CC: Ian Campbell <Ian.Campbell@citrix.com>
CC: Wei Liu <wei.liu2@citrix.com>

---
v4:
 * Don't use _init() needlessly
v3:
 * Simplify from v2.
 * Alter the ownership of save_helper_state

v2:
 * Drop "legacy_width" from the IDL
 * Gain a LIBXL_HAVE_ to signify support of migration v2 streams
2015-07-15 11:22:53 +01:00
Dario Faggioli 9a2d43cc5d libxc: get rid of the SEDF scheduler
Signed-off-by: Dario Faggioli <dario.faggioli@citrix.com>
Reviewed-by: George Dunlap <george.dunlap@eu.citrix.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
2015-07-08 14:37:43 +01:00
Wei Liu 12b46b0a41 libxc: use xc_netbsd.c for rump kernel
Signed-off-by: Wei Liu <wei.liu2@citrix.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
2015-06-25 12:10:01 +01:00
Olaf Hering 93790b1c38 tools: replace private LIBDIR with automake libdir
Reuse automake variable instead of inventing a private variable.

The result of this command:
 git grep -wnl LIBDIR | xargs sed -i 's@LIBDIR@libdir@g'

Signed-off-by: Olaf Hering <olaf@aepfle.de>
Cc: Ian Jackson <ian.jackson@eu.citrix.com>
Cc: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Cc: Ian Campbell <ian.campbell@citrix.com>
Cc: Wei Liu <wei.liu2@citrix.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
2015-05-21 15:12:11 +01:00
Olaf Hering e3dcb16398 tools: replace private INCLUDEDIR with automake includedir
Reuse automake variable instead of inventing a private variable.

The result of this command:
 git grep -wnl INCLUDEDIR | xargs sed -i 's@INCLUDEDIR@includedir@g'

Signed-off-by: Olaf Hering <olaf@aepfle.de>
Cc: Ian Jackson <ian.jackson@eu.citrix.com>
Cc: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Cc: Ian Campbell <ian.campbell@citrix.com>
Cc: Wei Liu <wei.liu2@citrix.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
2015-05-21 15:12:10 +01:00
Andrew Cooper 418cb785ef tools/libxc: Migration v2 compatibility for unmodified libxl
These changes cause migration v2 to behave similarly enough to legacy
migration to function for HVM guests under an unmodified xl/libxl.

The migration v2 work for libxl will fix the layering issues with the
toolstack and qemu records, at which point this patch will be unneeded.

It is however included here for people wishing to experiment with migration v2
ahead of the libxl work.

Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com>
Acked-by: Ian Campbell <Ian.Campbell@citrix.com>
2015-05-05 14:30:47 +01:00
Andrew Cooper 249e62c24f tools/libxc: x86 HVM restore code
Restore the x86 HVM specific parts of a domain.  This is the HVM_CONTEXT and
HVM_PARAMS records.

There is no need for any page localisation.

This also includes writing the trailing qemu save record to a file because
this is what libxc currently does.  This is intended to be moved into libxl
proper in the future.

Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com>
Acked-by: Ian Campbell <Ian.Campbell@citrix.com>
2015-05-05 14:30:47 +01:00
Andrew Cooper 9f0c16e72d tools/libxc: x86 HVM save code
Save the x86 HVM specific parts of the domain.  This is considerably simpler
than an x86 PV domain.  Only the HVM_CONTEXT and HVM_PARAMS records are
needed.

There is no need for any page normalisation.

Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com>
Acked-by: Ian Campbell <Ian.Campbell@citrix.com>
2015-05-05 14:30:47 +01:00
Andrew Cooper eab806a097 tools/libxc: x86 PV restore code
Restore the x86 PV specific parts.  The X86_PV_INFO, the P2M_FRAMES,
SHARED_INFO, and VCPU context records.

The localise_page callback is called from the common PAGE_DATA code to convert
PFNs in page tables to MFNs.

Page tables are pinned and the guest's P2M is updated when the stream is
complete.

Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com>
Acked-by: Ian Campbell <Ian.Campbell@citrix.com>
2015-05-05 14:30:47 +01:00
Andrew Cooper a8631b03d4 tools/libxc: x86 PV save code
Save the x86 PV specific parts of a domain.  This is the X86_PV_INFO record,
the P2M_FRAMES, the X86_PV_SHARED_INFO, the three different VCPU context
records, and the MSR records.

The normalise_page callback used by the common code when writing the PAGE_DATA
records, converts MFNs in page tables to PFNs.

Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com>
Acked-by: Ian Campbell <Ian.Campbell@citrix.com>
2015-05-05 14:30:46 +01:00
Andrew Cooper b8465d8dfa tools/libxc: x86 PV common code
Add functions common to save and restore of x86 PV guests.  This includes
functions for dealing with the P2M and M2P and the VCPU context.

Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com>
Acked-by: Ian Campbell <Ian.Campbell@citrix.com>
2015-05-05 14:30:46 +01:00
Andrew Cooper a270d09bc0 tools/libxc: x86 common code
Save/restore records common to all x86 domain types (HVM, PV).

This is only the TSC_INFO record.

Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
2015-05-05 14:30:46 +01:00
Andrew Cooper d004e0980d tools/libxc: C implementation of stream format
Provide the C structures matching the binary (wire) format of the new
stream format.  All header/record fields are naturally aligned and
explicit padding fields are used to ensure the correct layout (i.e.,
there is no need for any non-standard structure packing pragma or
attribute).

Provide some helper functions for converting types to string for
diagnostic purposes.

Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com>
Acked-by: Ian Campbell <Ian.Campbell@citrix.com>
2015-05-05 14:30:46 +01:00
Andrew Cooper 7c29932576 tools/libxc: Migration v2 framework
For testing purposes, the environmental variable "XG_MIGRATION_V2" allows the
two save/restore codepaths to coexist, and have a runtime switch.

Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com>
Acked-by: Ian Campbell <Ian.Campbell@citrix.com>
2015-05-05 14:30:44 +01:00
Tamas K Lengyel 0a246b41ca xen: Introduce monitor_op domctl
In preparation for allowing for introspecting ARM and PV domains the old
control interface via the hvm_op hypercall is retired. A new control mechanism
is introduced via the domctl hypercall: monitor_op.

This patch aims to establish a base API on which future applications can build
on.

Suggested-by: Andrew Cooper <andrew.cooper3@citrix.com>
Signed-off-by: Tamas K Lengyel <tamas.lengyel@zentific.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
Acked-by: Kevin Tian <kevin.tian@intel.com>
Acked-by: Daniel De Graaf <dgdegra@tycho.nsa.gov>
Acked-by: Tim Deegan <tim@xen.org>
2015-04-16 09:41:29 +01:00
Tamas K Lengyel 9b5972a54c xen: Rename mem_event to vm_event
In this patch we mechanically rename mem_event to vm_event. This patch
introduces no logic changes to the code. Using the name vm_event better
describes the intended use of this subsystem, which is not limited to memory
events. It can be used for off-loading the decision making logic into helper
applications when encountering various events during a VM's execution.

Signed-off-by: Tamas K Lengyel <tamas.lengyel@zentific.com>
Acked-by: Daniel De Graaf <dgdegra@tycho.nsa.gov>
Acked-by: Jan Beulich <jbeulich@suse.com>
Acked-by: Wei Liu <wei.liu2@citrix.com>
2015-04-09 11:40:56 +01:00
Andrew Cooper 755a7aaee0 tools/libxc: Disable CONFIG_MIGRATE in stubdom environments
The legacy save/restore infrastructure requires several function pointers from
the toolstack (libxl or Xend in the past) in order to work, and for HVM guests
also need to be able to play around in dom0's filesystem to move the device
model save record.

Migration v2 changes some of this, but is similarly dependent on
toolstack-provided function pointers.

Someone who wishes to re-architect the interaction of moving parts for running
a domain might be in a position to re-enabled this, but for now, explicitly
fail with ENOSYS (from xc_nomigrate.c) rather than failing with an error about
a missing function pointer (or indeed falling over a NULL pointer on certain
paths).

Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com>
CC: Ian Campbell <Ian.Campbell@citrix.com>
CC: Ian Jackson <Ian.Jackson@eu.citrix.com>
CC: Wei Liu <wei.liu2@citrix.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
2015-01-28 13:28:46 +00:00
Wei Liu f9c9b12775 tools: fix "make distclean"
The original rule to target "distclean" in tools/Rules.mk was in effect
"make clean". It should be "make distclean".

However not all Makefiles in subdirectories have distclean target
defined. So this patch also adds a bunch of distclean targets to various
Makefiles. They only depend on clean target and don't have any actions
in most cases.

With the patch applied, following command outputs 0 results:

  find tools -name 'Makefile*' -exec grep -L 'distclean' {} \+ \
     | grep -v ocaml | grep -v libfsimage

Ocaml and libfsimage are known to have distclean defined in a dedicated
rules file.

Signed-off-by: Wei Liu <wei.liu2@citrix.com>
Cc: Ian Campbell <ian.campbell@citrix.com>
Cc: Ian Jackson <ian.jackson@eu.citrix.com>
Acked-by: Ian Jackson <ian.jackson@eu.citrix.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
2015-01-27 16:34:45 +00:00
Chao Peng 747187995d tools: CMDs and APIs for Cache Monitoring Technology
Introduced some new xl commands to enable/disable Cache Monitoring
Technology(CMT) feature.

The following two commands is to attach/detach the CMT feature
to/from a certain domain.

$ xl psr-cmt-attach domid
$ xl psr-cmt-detach domid

This command is to display the CMT information, such as L3 cache
occupancy.

$ xl psr-cmt-show cache_occupancy <domid>

Signed-off-by: Dongxiao Xu <dongxiao.xu@intel.com>
Signed-off-by: Chao Peng <chao.p.peng@linux.intel.com>
Acked-by: Wei Liu <wei.liu2@citrix.com>
2014-10-15 08:34:46 +01:00
Dongxiao Xu fc265934d8 libxc: provide interface for generic resource access
Xen added a new platform_op hypercall for generic MSR access, and this
is the the tool side change to wrapper the hypercall into xc APIs.

For non-preemptible batch resource operations, group them in entries of
xc_resource_op structure. For preemptible ones, use multiple
xc_resource_op structure instead.

Signed-off-by: Dongxiao Xu <dongxiao.xu@intel.com>
Signed-off-by: Chao Peng <chao.p.peng@linux.intel.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
Release-Acked-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
2014-10-06 12:35:55 +02:00
Meng Xu 93fd67e8c6 libxc: add rtds scheduler
Add xc_sched_rtds_* functions to interact with Xen to set/get domain's
parameters for rtds scheduler.
Note: VCPU's information (period, budget) is in microsecond (us).

Signed-off-by: Meng Xu <mengxu@cis.upenn.edu>
Signed-off-by: Sisu Xi <xisisu@gmail.com>
Reviewed-by: Dario Faggioli <dario.faggioli@citrix.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
Acked-by: George Dunlap <george.dunlap@eu.citrix.com>
[ ijc -- xenctrl.h has moved to tools/libxc/include, adjust patch to match ]
2014-09-23 14:40:07 +01:00
Stefano Stabellini 31d2d1e08a Move xenstore and libxc public headers to include subdir
Also moves xc_dom.h to include as it is used often by other xen tools.
Use the new include subdirectories to build Xen tools, qemu-xen and
stubdoms.

Add the old libxc include path to the programs that need it to build,
on a case by case basis and commeting that they shouldn't require
internal libxc headers to build.

[ And: update QEMU_TRADITIONAL_REVISION to corresponding qemu patch
   - Ian jackson ]

Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
2014-09-23 14:10:40 +01:00
Olaf Hering ad1f562eb7 tools/libxc: provide variable paths to libxc
In preparation to remove hardcoded /var/run/xen paths, provide
XEN_RUN_DIR and related directories to xc_private.h. Similar code exists
already for libxl, stubdom and other parts.

Signed-off-by: Olaf Hering <olaf@aepfle.de>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
2014-09-23 10:15:43 +01:00
Olaf Hering 3363fc1204 tools: remove duplicate -g from CFLAGS
CFLAGS+=-g is already provided by Config.mk.

Signed-off-by: Olaf Hering <olaf@aepfle.de>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
2014-08-21 23:12:27 +01:00
Ian Jackson 70d597d0ef build system: Introduce nosharedlibs variable.
Introduce a new build variable "nosharedlibs".

In tools/libxc use it instead of $(stubdom).
In tools/xenstore honour it, and build static clients.

If shared libs are disabled, do not try to install or symlink them.

Set nosharedlibs when building for MiniOS or NetBSDRump.

Signed-off-by: Ian Jackson <ian.jackson@eu.citrix.com>
Acked-by: Ian Campbell <Ian.Campbell@citrix.com>

---
v2: Clarify deliberate INSTALL_SHLIB and SYMLINK_SHLIB breakage.
2014-07-14 16:07:50 +01:00
Ian Jackson 0343a41c86 build system: Introduce INSTALL_SHLIB and SYMLINK_SHLIB
INSTALL_SHLIB is like INSTALL_PROG but used only for shared libraries.
SYMLINK_SHLIB is the ln -sf rune for shared library symlinks.

Use these in the appropriate places in tools/libxc and tools/xenstore.

No functional change right now.  In a forthcoming patch these
variables might take on different values.

Signed-off-by: Ian Jackson <ian.jackson@eu.citrix.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
2014-07-14 16:07:50 +01:00
Dario Faggioli d172e6b648 libxc/libxl: bump library SONAMEs
The following two patches break both libxc and libxl ABI and
API, so we better bump the MAJORs.

Of course, for libxl, proper measures are taken (in the
relevant patch) in order to guarantee API stability.

Signed-off-by: Dario Faggioli <dario.faggioli@citrix.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
2014-06-27 13:38:32 +01:00
Roger Pau Monne d2ee2e3846 libxc: add support for FreeBSD
Add the FreeBSD implementation of the privcmd and evtchn devices
interface.

The evtchn device interface is the same as the Linux one, while the
privcmd map interface is simplified because FreeBSD only supports
IOCTL_PRIVCMD_MMAPBATCH.

Signed-off-by: Roger Pau Monné <roger.pau@citrix.com>
Cc: Ian Jackson <Ian.Jackson@eu.citrix.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
2014-06-18 17:17:49 +01:00
Andrew Cooper 171c6d7ac1 tools/libxc: Add Valgrind client requests
Valgrind client requests can be used by code to provide extra debugging
information about memory ranges, or to request checks at specific points.

Reference:
  http://valgrind.org/docs/manual/mc-manual.html#mc-manual.clientreqs

Client requests are safe to compile into code for running outside of
valgrind.  Therefore, enable client requests whenever autoconf can find
memcheck.h and debug builds are enabled.

Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com>
CC: Ian Campbell <Ian.Campbell@citrix.com>
CC: Ian Jackson <Ian.Jackson@eu.citrix.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
[ ijc -- reran autogen.sh ]
2014-06-12 10:04:44 +01:00
Andrew Cooper b1dfc531d8 tools/libxc: Remove valgrind conditional sections from libxc
The ifdef sections are not enabled at all in tree, and their justification is
out of date now that Xen hypercall support exists upstream in valgrind.

This also removes a commented-out tweak to CFLAGS in the libxc Makefile which
is not being used, and becomes stale given this patch.  In the unlikely event
that any developers were using the line, the results can be more easily
achieved by tweaking APPEND_CFLAGS in the environment.

Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com>
CC: Ian Jackson <Ian.Jackson@eu.citrix.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
2014-04-16 17:08:54 +01:00