The architecture specific loaders are now called with a list of all
elements of a given type (rather than a single element at a time). This
avoids the need to reallocate the arrays in CPU maps for each element.
Signed-off-by: NJiri Denemark <jdenemar@redhat.com>

Signed-off-by: NJiri Denemark <jdenemar@redhat.com>

Not all files we want to find using virFileFindResource{,Full} are
generated when libvirt is built, some of them (such as RNG schemas) are
distributed with sources. The current API was not able to find source
files if libvirt was built in VPATH.

Both RNG schemas and cpu_map.xml are distributed in source tarball.
Signed-off-by: NJiri Denemark <jdenemar@redhat.com>

Replace:
if (virBufferError(&buf)) {
    virBufferFreeAndReset(&buf);
    virReportOOMError();
    ...
}

with:
if (virBufferCheckError(&buf) < 0)
    ...

This should not be a functional change (unless some callers
misused the virBuffer APIs - a different error would be reported
then)

In "src/cpu/" there are some enumerations (enum) declarations.
Similar to the recent cleanup to "src/util", "src/conf" and other
directories, it's better to use a typedef for variable types,
function types and other usages. Other enumeration and folders will
be changed to typedef's in the future. Specially, in files that are
in different places of "src/util" and "src/conf". Most of the files
changed in this commit are related to CPU (cpu_map.h) enums.
Signed-off-by: NJulio Faracco <jcfaracco@gmail.com>

Replace use of cpuMapOverride with virFileFindResource
to locate CPU map from build dir.
Signed-off-by: NDaniel P. Berrange <berrange@redhat.com>

Any source file which calls the logging APIs now needs
to have a VIR_LOG_INIT("source.name") declaration at
the start of the file. This provides a static variable
of the virLogSource type.
Signed-off-by: NDaniel P. Berrange <berrange@redhat.com>

When libvirtd is run from a build directory without being installed, it
should not depend on files from a libvirt package installed in the
system. Not only because there may not be any libvirt installed at all.
We already do a good job for plugins but cpu_map.xml was still loaded
from the system.

The Makefile.am change is necessary to make this all work from VPATH
builds since libvirtd has no idea where to find libvirt sources. It only
knows the path from which it was started, i.e, a builddir.

https://bugzilla.redhat.com/show_bug.cgi?id=1074327Signed-off-by: NJiri Denemark <jdenemar@redhat.com>

https://www.gnu.org/licenses/gpl-howto.html recommends that
the 'If not, see <url>.' phrase be a separate sentence.

* tests/securityselinuxhelper.c: Remove doubled line.
* tests/securityselinuxtest.c: Likewise.
* globally: s/;  If/.  If/

Per the FSF address could be changed from time to time, and GNU
recommends the following now: (http://www.gnu.org/licenses/gpl-howto.html)

  You should have received a copy of the GNU General Public License
  along with Foobar.  If not, see <http://www.gnu.org/licenses/>.

This patch removes the explicit FSF address, and uses above instead
(of course, with inserting 'Lesser' before 'General').

Except a bunch of files for security driver, all others are changed
automatically, the copyright for securify files are not complete,
that's why to do it manually:

  src/security/security_selinux.h
  src/security/security_driver.h
  src/security/security_selinux.c
  src/security/security_apparmor.h
  src/security/security_apparmor.c
  src/security/security_driver.c

Update the CPU helper APIs to use virReportError instead
of the virCPUReportError custom macor
Signed-off-by: NDaniel P. Berrange <berrange@redhat.com>

We already have virAsprintf, so picking a similar name helps for
seeing a similar purpose.  Furthermore, the prefix V before printf
generally implies 'va_list', even though this variant was '...', and
the old name got in the way of adding a new va_list version.

global rename performed with:

$ git grep -l virBufferVSprintf \
  | xargs -L1 sed -i 's/virBufferVSprintf/virBufferAsprintf/g'

then revert the changes in ChangeLog-old.

* bootstrap.conf (gnulib_modules): Add configmake.
* daemon/Makefile.am (libvirtd_CFLAGS): Drop defines provided by
gnulib.
* src/Makefile.am (INCLUDES): Likewise.
* tests/Makefile.am (INCLUDES): Likewise.
* tools/Makefile.am (virsh_CFLAGS): Likewise.
* daemon/libvirtd.c (qemudInitPaths, usage, main): Update
clients.
* src/cpu/cpu_map.c (CPUMAPFILE): Likewise.
* src/driver.c (DEFAULT_DRIVER_DIR): Likewise.
* src/internal.h (_): Likewise.
* src/libvirt.c (virInitialize): Likewise.
* src/lxc/lxc_conf.h (LXC_CONFIG_DIR, LXC_STATE_DIR, LXC_LOG_DIR):
Likewise.
* src/lxc/lxc_conf.c (lxcCapsInit, lxcLoadDriverConfig):
Likewise.
* src/network/bridge_driver.c (NETWORK_PID_DIR)
(NETWORK_STATE_DIR, DNSMASQ_STATE_DIR, networkStartup): Likewise.
* src/nwfilter/nwfilter_driver.c (nwfilterDriverStartup):
Likewise.
* src/qemu/qemu_conf.c (qemudLoadDriverConfig): Likewise.
* src/qemu/qemu_driver.c (qemudStartup): Likewise.
* src/remote/remote_driver.h (LIBVIRTD_PRIV_UNIX_SOCKET)
(LIBVIRTD_PRIV_UNIX_SOCKET_RO, LIBVIRTD_CONFIGURATION_FILE)
(LIBVIRT_PKI_DIR): Likewise.
* src/secret/secret_driver.c (secretDriverStartup): Likewise.
* src/security/security_apparmor.c (VIRT_AA_HELPER): Likewise.
* src/security/virt-aa-helper.c (main): Likewise.
* src/storage/storage_backend_disk.c (PARTHELPER): Likewise.
* src/storage/storage_driver.c (storageDriverStartup): Likewise.
* src/uml/uml_driver.c (TEMPDIR, umlStartup): Likewise.
* src/util/hooks.c (LIBVIRT_HOOK_DIR): Likewise.
* tools/virsh.c (main): Likewise.
* docs/hooks.html.in: Likewise.

By specifying <vendor> element in CPU requirements a guest can be
restricted to run only on CPUs by a given vendor. Host CPU vendor is
also specified in capabilities XML.

The vendor is checked when migrating a guest but it's not forced, i.e.,
guests configured without <vendor> element can be freely migrated.

The virConnectPtr is no longer required for error reporting since
that is recorded in a thread local. Remove use of virConnectPtr
from all APIs in cpu_conf.{h,c} and update all callers to
match

It was used for error reporting only.

* src/Makefile.am src/cpu/cpu_map.c: rename in Makefile and in the
  cpu map loading code

Each driver supporting CPU selection must fill in host CPU capabilities.
When filling them, drivers for hypervisors running on the same node as
libvirtd can use cpuNodeData() to obtain raw CPU data. Other drivers,
such as VMware, need to implement their own way of getting such data.
Raw data can be decoded into virCPUDefPtr using cpuDecode() function.

When implementing virConnectCompareCPU(), a hypervisor driver can just
call cpuCompareXML() function with host CPU capabilities.

For each guest for which a driver supports selecting CPU models, it must
set the appropriate feature in guest's capabilities:

    virCapabilitiesAddGuestFeature(guest, "cpuselection", 1, 0)

Actions needed when a domain is being created depend on whether the
hypervisor understands raw CPU data (currently CPUID for i686, x86_64
architectures) or symbolic names has to be used.

Typical use by hypervisors which prefer CPUID (such as VMware and Xen):

- convert guest CPU configuration from domain's XML into a set of raw
  data structures each representing one of the feature policies:

    cpuEncode(conn, architecture, guest_cpu_config,
              &forced_data, &required_data, &optional_data,
              &disabled_data, &forbidden_data)

- create a mask or whatever the hypervisor expects to see and pass it
  to the hypervisor

Typical use by hypervisors with symbolic model names (such as QEMU):

- get raw CPU data for a computed guest CPU:

    cpuGuestData(conn, host_cpu, guest_cpu_config, &data)

- decode raw data into virCPUDefPtr with a possible restriction on
  allowed model names:

    cpuDecode(conn, guest, data, n_allowed_models, allowed_models)

- pass guest->model and guest->features to the hypervisor

* src/cpu/cpu.c src/cpu/cpu.h src/cpu/cpu_generic.c
  src/cpu/cpu_generic.h src/cpu/cpu_map.c src/cpu/cpu_map.h
  src/cpu/cpu_x86.c src/cpu/cpu_x86.h src/cpu/cpu_x86_data.h
* configure.in: check for CPUID instruction
* src/Makefile.am: glue the new files in
* src/libvirt_private.syms: add new private symbols
* po/POTFILES.in: add new cpu files containing translatable strings