Introduce a helper that only calls closedir if DIR* is non-NULL
and sets it to NULL afterwards.

This will be used for the caller that needs to specify a separator.
Currently identical to virBitmapParse.

Also change one test case to use the new function.

This is only used by one caller.

Move all APIs with a virHostMEM name prefix out into new
util/virhostmem.h & util/virhostmem.c files
Signed-off-by: NDaniel P. Berrange <berrange@redhat.com>

In preparation for moving all the memory related APIs out of
the nodeinfo file, give them a virHostMem name prefix.
Signed-off-by: NDaniel P. Berrange <berrange@redhat.com>

The virConnectOpenInternal method opens the libvirt client
config file and uses it to resolve things like URI aliases.

There may be driver specific things that are useful to
store in the config file too, so rather than have them
re-parse the same file, pass the virConfPtr down to the
drivers.
Signed-off-by: NDaniel P. Berrange <berrange@redhat.com>

Similarly to the domain definition validator add a device validator. The
change to the prototype of the domain validator is necessary as
virDomainDeviceInfoIterateInternal requires a non-const pointer.

Make it obvious that the flag is controlling RNG schema validation.

Unify XEN_CONFIG_FORMAT_x and LIBXL_CONFIG_FORMAT_x to
XEN_CONFIG_FORMAT_x, and move to xen_common.h.
Signed-off-by: NChunyan Liu <cyliu@suse.com>

Usage of this keyword in front of function declaration that is exported via a
header file is unnecessary, since internally, this has been the default for most
compilers for quite some time.
Signed-off-by: NErik Skultety <eskultet@redhat.com>

We had both and the only difference was that the latter also included
information about multifunction setting.  The problem with that was that
we couldn't use functions made for only one of the structs (e.g.
parsing).  To consolidate those two structs, use the one in virpci.h,
include that in domain_conf.h and add the multifunction member in it.
Signed-off-by: NMartin Kletzander <mkletzan@redhat.com>

Hardware Assisted Paging is enabled by default in Xen. Change
the capabilities output to reflect this.
Signed-off-by: NJim Fehlig <jfehlig@suse.com>

Introduce a helper to check supported device and domain config and move
the memory hotplug checks to it.

The advantage of this approach is that by default all new features are
considered unsupported by all hypervisors unless specifically changed
rather than the previous approach where every hypervisor would need to
declare that a given feature is unsupported.

Our existing virHashForEach method iterates through all items disregarding the
fact, that some of the iterators might have actually failed. Errors are usually
dispatched through an error element in opaque data which then causes the
original caller of virHashForEach to return -1. In that case, virHashForEach
could return as soon as one of the iterators fail. This patch changes the
iterator return type and adjusts all of its instances accordingly, so the
actual refactor of virHashForEach method can be dealt with later.
Signed-off-by: NErik Skultety <eskultet@redhat.com>

And use the newly added caps->host.netprefix (if it exists) for
interface names that match the autogenerated target names.
Signed-off-by: NJoao Martins <joao.m.martins@oracle.com>

The current code was a little bit odd.  At first we've removed all
possible implicit input devices from domain definition to add them later
back if there was any graphics device defined while parsing XML
description.  That's not all, while formating domain definition to XML
description we at first ignore any input devices with bus different to
USB and VIRTIO and few lines later we add implicit input devices to XML.

This seems to me as a lot of code for nothing.  This patch may look
to be more complicated than original approach, but this is a preferred
way to modify/add driver specific stuff only in those drivers and not
deal with them in common parsing/formating functions.

The update is to add those implicit input devices into config XML to
follow the real HW configuration visible by guest OS.

There was also inconsistence between our behavior and QEMU's in the way,
that in QEMU there is no way how to disable those implicit input devices
for x86 architecture and they are available always, even without graphics
device.  This applies also to XEN hypervisor.  VZ driver already does its
part by putting correct implicit devices into live XML.
Signed-off-by: NPavel Hrdina <phrdina@redhat.com>

The virErrorDomain enum has VIR_FROM_XEN, VIR_FROM_XEND,
VIR_FROM_XENSTORE, VIR_FROM_SEXPR, and VIR_FROM_XENXM. Use
these elements in the corresponding .c files. While at it,
remove the VIR_FROM_THIS define in src/xenconfig/xenxs_private.h.

Commmit fd2e3c4c used the domctl version 8 structure for version 9
in the xen_getdomaininfolist union, resulting in insufficient buffer
size (and subsequent memory corruption) for the GETDOMAININFOLIST
ioctl.
Signed-off-by: NJim Fehlig <jfehlig@suse.com>

This way both Domain and Device PostParse functions can act based on the
flags.
Signed-off-by: NMartin Kletzander <mkletzan@redhat.com>

This patch partially reverts previous commit 91a00424 and moves the post
parse function to xenParseSxpr.  This update is required because xen
driver calls xenParseSxpr directly.
Signed-off-by: NPavel Hrdina <phrdina@redhat.com>

This replaces the virPCIKnownStubs string array that was used
internally for stub driver validation.

Advantages:

  * possible values are well-defined
  * typos in driver names will be detected at compile time
  * avoids having several copies of the same string around
  * no error checking required when setting / getting value

The names used mirror those in the
virDomainHostdevSubsysPCIBackendType enumeration.

xendConfigVersion is no longer used, so remove it from the
xenUnifiedPrivate struct.
Signed-off-by: NJim Fehlig <jfehlig@suse.com>

Remove use of xendConfigVersion in the s-expresion config formatter/parser
in src/xenconfig/. Adjust callers in the xen and libxl drivers accordingly.
Signed-off-by: NJim Fehlig <jfehlig@suse.com>

Remove use of XEND_CONFIG_VERSION_* in xend_internal.c
Signed-off-by: NJim Fehlig <jfehlig@suse.com>

Remove use of XEND_CONFIG_VERSION_* in the Xen unified driver.
Signed-off-by: NJim Fehlig <jfehlig@suse.com>

Remove use of xendConfigVersion in the xm and xl config formatter/parsers
in src/xenconfig/. Adjust callers in the xen and libxl drivers accordingly.
Signed-off-by: NJim Fehlig <jfehlig@suse.com>

Finalize the refactor by adding the 'virDomainDefGetVCpusMax' getter and
reusing it accross libvirt.

The code can be unified into the new accessor rather than being
scattered accross the drivers.

To support further refactors replace all write access to def->maxvcpus
with a accessor function.

This change ensures to call driver specific post-parse code to modify
domain definition after parsing hypervisor config the same way we do
after parsing XML.
Signed-off-by: NPavel Hrdina <phrdina@redhat.com>

VIR_DEBUG and VIR_WARN will automatically add a new line to the message,
having "\n" at the end or at the beginning of the message results in
empty lines.
Signed-off-by: NJiri Denemark <jdenemar@redhat.com>

We have macros for both positive and negative string matching.
Therefore there is no need to use !STREQ or !STRNEQ. At the same
time as we are dropping this, new syntax-check rule is
introduced to make sure we won't introduce it again.
Signed-off-by: NIshmanpreet Kaur Khera <khera.ishman@gmail.com>
Signed-off-by: NMichal Privoznik <mprivozn@redhat.com>

The name of the variable was misleading. Rename it and it's setting
accessor before other fixes.

The xenXMConfigCacheRefresh method scans /etc/xen and loads
all config files it finds. It then scans its internal hash
table and purges any (previously) loaded config files whose
refresh timestamp does not match the timestamp recorded at
the start of xenXMConfigCacheRefresh(). There is unfortunately
a subtle flaw in this, because if loading the config files
takes longer than 1 second, some of the config files will
have a refresh timestamp that is 1 or more seconds different
(newer) than is checked for. So we immediately purge a bunch
of valid config files we just loaded.

To avoid this flaw, we must pass the timestamp we record at
the start of xenXMConfigCacheRefresh() into the
xenXMConfigCacheAddFile() method, instead of letting the
latter call time(NULL) again.
Signed-off-by: NDaniel P. Berrange <berrange@redhat.com>

Functions like virDomainOpenConsole() and virDomainOpenChannel() accept
NULL as a dev_name parameter.  Try using alias for the error message if
dev_name is not specified.

Before:
  error: internal error: character device <null> is not using a PTY

After:
  error: internal error: character device serial0 is not using a PTY
Signed-off-by: NLuyao Huang <lhuang@redhat.com>

This reverts commit 01692bb1.

Quoting the original commit message:

"Not sure if it's the correct way to add cputune xml for xend driver..."

It is not. The defition created that is converted from the internal xend
structures would also be leaked since it isn't used any more.

Revert the commit since it does not make sense to keep the info
internally.