Commit Graph
18 Commits
Author SHA1 Message Date
Matthew Fioravante fb0ddeafbc libxl: make devid a type so it is initialized properly
Previously device ids in libxl were treated as integers meaning they
were being initialized to 0, which is a valid device id. This patch
makes devid its own type in libxl and initializes it to -1, an invalid
value.

This fixes a bug where if you try to do a xl DEV-attach multiple
time it will continuously try to reattach device 0 instead of
generating a new device id.

Signed-off-by: Matthew Fioravante <matthew.fioravante@jhuapl.edu>
Reviewed-by: George Dunlap <george.dunlap@eu.citrix.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
Committed-by: Ian Campbell <ian.campbell@citrix.com>
2012-10-05 14:34:27 +01:00
Dario Faggioli ea12318767 libxl: rename libxl_cpumap to libxl_bitmap
And leave to the caller the burden of knowing and remembering what kind
of bitmap each instance of libxl_bitmap is.

This is basically just some s/libxl_cpumap/libxl_bitmap/ (and some other
related interface name substitution, e.g., libxl_for_each_cpu) in a bunch
of files, with no real functional change involved.

A specific allocation helper is introduced, besides libxl_bitmap_alloc().
It is called libxl_cpu_bitmap_alloc() and is meant at substituting the old
libxl_cpumap_alloc(). It is just something easier to use in cases where one
wants to allocate a libxl_bitmap that is going to serve as a cpu map.

This is because we want to be able to deal with both cpu and NUMA node
maps, but we don't want to duplicate all the various helpers and wrappers.

While at it, add the usual initialization function, common to all libxl
data structures.

Signed-off-by: Dario Faggioli <dario.faggioli@citrix.eu.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
Committed-by: Ian Campbell <ian.campbell@citrix.com>
2012-07-06 13:17:42 +01:00
Ian Campbell 618a40391f libxl: add a new Array type to the IDL
And make all the required infrastructure updates to enable this.

Since there are currently no uses of this type there is no change to
the generated code.

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Tested-by: Dario Faggioli <dario.faggioli@citrix.com>
Acked-by: Ian Jackson <ian.jackson@eu.citrix.com>
Committed-by: Ian Campbell <ian.campbell@citrix.com>
2012-07-06 13:17:40 +01:00
Ian Campbell 731a050623 libxl: do not overwrite user supplied config when running bootloader
Currently when running the bootloader libxl will update b_info->u.pv.kernel,
.ramdisk, .cmdline and .bootloader.  This can expose internal details, such
as temporary paths in /var/run/xen/bootloader.*/ to the user. This is
problematic because it means that the user cannot re-use the struct as is.

This does not effect xl in Xen 4.2+ since it always reparses the guest config
and reinitialises the build info, however it did cause issues with reboot in
4.1 (reported by Dmitry Morozhnikov) and may cause issues for other users of
libxl.

Instead make the libxl bootloader infrastructure provide output to its caller
which is slurped into the internal libxl__domain_build_state datastructure. If
no bootloader is configured then the bootloader instead propagates the user
supplied b_info config.

In order to simplify this push the error handling for the case where there is
no bootdisk down into libxl__bootloader_run. In principal there is no reason
why it shouldn't be possible to do a pure netboot guest with a suitable
bootloader, but I don't fix that here.

This change allow us to make the libxl_file_reference an internal API, and
eventually we might be able to get rid of it.

Also removes the publix libxl_run_bootloader interface, neither xl nor libvirt
use it.

I am proposing this for 4.2 due to the API change.

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Acked-by: Ian Jackson <ian.jackson@eu.citrix.com>
[ ijc -- reduced log message in libxl__build_pv from INFO to DEBUG ]
Committed-by: Ian Campbell <ian.campbell@citrix.com>
2012-05-29 10:31:38 +01:00
Ian Campbell 53ec331a4b libxl: Make IDL KeyedUnion keyvar an idl.Field
This is more logical than having keyvar_name and keyvar_type members.

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Acked-by: Ian Jackson <ian.jackson@eu.citrix.com>
2012-03-01 12:26:15 +00:00
Ian Campbell 9c5defc464 libxl: make boolean members of libxl_domain_create_info into libxl_defbool
This allows them to be set via the _init/_setdefault methods.

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Acked-by: Ian Jackson <ian.jackson@eu.citrix.com>
2012-03-01 12:26:14 +00:00
Ian Campbell 50cbda0d0b libxl: add new "defbool" built in type.
This type is a but like a "boolean" but with a third state "default" (so really
I suppose it's a tristate).

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Acked-by: Ian Jackson <ian.jackson@eu.citrix.com>
2012-03-01 12:26:14 +00:00
Ian Campbell 8100d0b3cd libxl: introduce a descriminating default value for memkb fields.
Consitently make such fields 64 bit values as used by dominfo.

It is not clear if ->video_memkb and/or shadow_memkb shouldn't be part of
->u.hvm but I have not changed that here.

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Acked-by: Ian Jackson <ian.jackson@eu.citrix.com>
2012-03-01 12:26:14 +00:00
Ian Campbell cad39d78f0 libxl: allow specification of testidl random seed.
Useful if you are interested in before/after results of changing the IDL or
generator.

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Acked-by: Ian Jackson <ian.jackson@eu.citrix.com>
2012-03-01 12:26:13 +00:00
Ian Campbell cf3b8d958c libxl: drop libxl_cpuarray -- topology was the only user.
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Acked-by: Ian Jackson <Ian.Jackson@eu.citrix.com>
Committed-by: Ian Jackson <Ian.Jackson@eu.citrix.com>
2012-01-31 16:34:39 +00:00
Ian Campbell 8137e3ea1a libxl: expose cpu topology as a single list of cpu->{node,core,socket} maps.
Rather than the previous tripple list which is more complicated to work with
and harder for language bindings.

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Acked-by: Ian Jackson <Ian.Jackson@eu.citrix.com>
Committed-by: Ian Jackson <Ian.Jackson@eu.citrix.com>
2012-01-31 16:34:39 +00:00
Ian Campbell a6beb5286e libxl: Rename libxl IDL infrastructure.
Originally libxltypes.py provided the infrastructure and libxl.idl provided the
specific types.

In 23887:a543e10211f7 libxl.idl became libxl_types.idl (to allow for
libxl_types_internal.idl) which means we now have libxl_types.FOO and
libxltypes.FOO providing different things and annoying people in tab
completion.

Rename the infrastructure as idl.

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Acked-by: Ian Jackson <Ian.Jackson@eu.citrix.com>
Committed-by: Ian Jackson <Ian.Jackson@eu.citrix.com>
2012-01-31 16:34:38 +00:00
Ian Jackson eee7480fdf libxl: idl: support new "private" type attribute
This provides for fields in libxl datatypes which are only present in
the C version of structures and are used only by libxl itself.  This
is useful when a libxl datatype wants to contain fields which are used
by libxl internally and which are only present in the structure to
avoid additional memory allocation inconvenience.

Signed-off-by: Ian Jackson <ian.jackson@eu.citrix.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
Committed-by: Ian Jackson <Ian.Jackson@eu.citrix.com>
2011-12-12 17:48:38 +00:00
Ian Campbell 33ca1047cb libxl: add a flags argument to libxl_ctx_alloc.
Currently unused but gives us scope for expansion in an ABI compatible manner
in the future.

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Acked-by: Ian Jackson <ian.jackson.citrix.com>
Committed-by: Ian Jackson <ian.jackson.citrix.com>
2011-10-18 13:36:43 +01:00
Ian Campbell 9dcc52ddb6 libxl: idl: use "dispose" rather than "destroy" for function to free IDL types
Destroy is an overloaded term which would commonly like to be used for actual
destructive operations, such as destroying a domain etc.

Dispose isn't a great term but it does the job.

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Acked-by: Ian Jackson <ian.jackson.citrix.com>
Committed-by: Ian Jackson <ian.jackson.citrix.com>
2011-10-18 10:35:55 +01:00
Ian Campbell 93e240f096 libxl: IDL: autogenerate functions to produce JSON from libxl data structures.
Two functions are provided. TYPE_gen_json exposes an interface which is
compatible with the YAGL generator infrastructure. TYPE_to_string uses this to
produce a pretty printed string.

The TYPE_gen_json functions are defined in a new header libxl_json.h which is
not exposed via libxl.h due to the use of YAGL datatypes to avoid poluting the
namespace us libxl users which don't use the library themselves.  If a libxl
user is interested in integrating at the YAGL level then it should #include
this file itself.

Also update testidl to generate a random version of each IDL datastructure and
convert it to JSON. Unfortunately this requires a libxl_ctx and therefore the
test must be run on a Xen system now.

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Acked-by: Ian Jackson <ian.jackson.citrix.com>
Committed-by: Ian Jackson <ian.jackson.citrix.com>
2011-10-07 11:05:45 +01:00
Wei Liu 1b86994afe libxl: clean up trailing whitespaces in code.
Commit exactly the results of running
   find \! -iname '*.txt' -type f -print0 | xargs -0 perl -p -i.bak -E 's/\s+\n/\n/'

Signed-off-by: Wei Liu <liuw@liuw.name>
Signed-off-by: Ian Jackson <ian.jackson@eu.citrix.com>
Committed: Ian Jackson <ian.jackson@eu.citrix.com>
2011-07-19 16:02:36 +01:00
Ian Campbell a53cb5b82d libxl: autogenerate to_string and from_string functions for Enumerations.
The generated strings are the lower case enum value names, with underscores.
Accepted string for parsing are the same but are case insensitive.

We provide a table of strings->value for each Enumeration as well as a
convenience function to perform a lookup.

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Acked-by: Ian Jackson <ian.jackson@eu.citrix.com>
Committed-by: Ian Jackson <ian.jackson@eu.citrix.com>
2011-06-21 18:26:39 +01:00