Commit Graph
40 Commits
Author SHA1 Message Date
Ian Campbell 443701ef0c Replace FSF street address with canonical URL
As recommended in http://www.gnu.org/licenses/gpl-howto.en.html.

This is the result of:
$ git grep -El Mass\|Temple\|Franklin | xargs ./fsf.pl

Where fsf.pl is:
    #!/usr/bin/perl -w -pi.bak -0777
    my $repl = 'If not, see <http://www.gnu.org/licenses/>.';
    my $br = qr/(?:\s*\n\s*(?:[\*\#]|\/\/|\.\\" )?\s*|\s+)/;

    my $inwt = qr/[Ii]f${br}not,${br}write${br}(?:to${br})?the${br}Free${br}Software${br}Foundation,(?:${br}Inc\.,)?/;

    my $mass = qr/675${br}Mass${br}Ave,?${br}Cambridge,?${br}MA${br}02139,?${br}USA,?\.?/;
    my $franklin = qr/51${br}Franklin${br}St(?:reet)?(?:,${br}| - )Fifth${br}Floor,?${br}Boston,?${br}MA,?${br}02110-1301,?${br}USA,?\.?/;
    my $temple = qr/59${br}Temple${br}Place(?:,${br}| - )Suite${br}330,?${br}Boston,?${br}MA,?${br}021110?-1307,?${br}USA,?\.?/;

    s|$inwt$br$mass|$repl|m;
    s|$inwt$br$franklin|$repl|m;
    s|$inwt$br$temple|$repl|m;

The only remaining mentions of these addresses are in COPYING files which I
haven't touched.

Some of the changed files are imports from elsewhere, however
filtering them out is tricky, I think it is tolerable to have these
files be modified here and then perhaps reverted on the next sync,
since it's only 1-2 lines and obvious what is going on.

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
2015-07-29 11:14:07 +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 341fac7bdb xen/mem_event: Cleanup mem_event names in rings, functions and domctls
The name of one of the mem_event rings still implies it is used only
for memory accesses, which is no longer the case. It is also used to
deliver various HVM events, thus the name "monitor" is more appropriate
in this setting.

Couple functions incorrectly labeled as part of mem_event is also renamed
to reflect that they belong to mem_access.

The mem_event subop definitions are also shortened to be more meaningful.

The tool side changes are only mechanical renaming to match these new names.

Signed-off-by: Tamas K Lengyel <tamas.lengyel@zentific.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
Acked-by: Jan Beulich <jbeulich@suse.com>
2015-04-09 11:40:17 +01:00
Konrad Rzeszutek Wilk 1781f00ea6 libxc: Check xc_maximum_ram_page for negative return values.
Instead of assuming everything is always OK. As such
we return now the return value (or zero for success).
The max_mfn is now passed in as the parameter.

Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
2015-03-20 16:07:35 +00:00
Andrew Cooper 78bf682c36 tools/libxc: Shuffle definitions and uses of min()/max() macros
Move the typesafe min() macro from xc_dom_decompress_unsafe_xz.c to
xc_private.h, and complement it with an equivalent max() macro.

Replace current users of type unsafe MIN()/MAX() macros, and remove their
scattered definitions.

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>
2014-07-18 13:38:08 +01:00
Andrew Cooper 9f378f487a tools/libxc: Improve the *_FIELD() macros
The {GET,SET,MEMCPY,MEMSET_ARRAY}_FIELD() macros previously required
'dinfo->guest_width' to exist in scope, which is somewhat antisocial, and
makes them awkward to use in other contexts.

Update these macros to take guest width as a parameter, and in all cases pass
dinfo->guest_width.

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>
2014-06-27 14:13:22 +01:00
Paul Durrant 434ae6517a ioreq-server: add support for multiple servers
The previous single ioreq server that was created on demand now
becomes the default server and an API is created to allow secondary
servers, which handle specific IO ranges or PCI devices, to be added.

When the guest issues an IO the list of secondary servers is checked
for a matching IO range or PCI device. If none is found then the IO
is passed to the default server.

Secondary servers use guest pages to communicate with emulators, in
the same way as the default server. These pages need to be in the
guest physmap otherwise there is no suitable reference that can be
queried by an emulator in order to map them. Therefore a pool of
pages in the current E820 reserved region, just below the special
pages is used. Secondary servers allocate from and free to this pool
as they are created and destroyed.

The size of the pool is currently hardcoded in the domain build at a
value of 8. This should be sufficient for now and both the location and
size of the pool can be modified in future without any need to change the
API.

Signed-off-by: Paul Durrant <paul.durrant@citrix.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
Reviewed-by: Jan Beulich <jbeulich@suse.com>

Fix build errors in xen/xsm/dummy.c and xen/xsm/flask/hooks.c with XSM
enabled.

Signed-off-by: Jan Beulich <jbeulich@suse.com>
2014-06-02 09:58:56 +02:00
Dario Faggioli 0dd5b65410 libxc: introduce xc_domain_get_guest_width()
As a wrapper to XEN_DOMCTL_get_address_size, and use it
wherever the call was being issued directly via do_domctl(),
saving quite some line of code.

Actually, the function returns the guest width in bytes,
rather than directly what XEN_DOMCTL_get_address_size provides
(which is a number of bits), since that is what it is useful
almost everywhere.

Signed-off-by: Dario Faggioli <dario.faggioli@citrix.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
2013-09-13 13:06:28 +01:00
Jan Beulich 60ee4fbc38 libxc: drop relics of running on non-PAE 32-bit hosts
Additionally drop unused (and dangerous) defines and typedefs, plus
a minor legibility improvement to setup_pgtables_x86_{32_pae,64}().

Signed-off-by: Jan Beulich <jbeulich@suse.com>
Acked-by: Keir Fraser <keir@xen.org>
Acked-by: Ian Campbell <Ian.Campbell@citrix.com>
2013-01-24 14:49:14 +01:00
Keir Fraser 64b135198b libxc: Support save/restore of up to 4096 VCPUs (increase from 64 VCPUs).
Signed-off-by: Keir Fraser <keir@xen.org>
2012-08-22 22:20:42 +01:00
Stefano Stabellini 960371fa2c libxc: introduce XC_SAVE_ID_TOOLSTACK
Introduce a new save_id to save/restore toolstack specific extra
information.

Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Committed-by: Ian Jackson <ian.jackson.citrix.com>
2012-05-11 17:46:15 +01:00
Tim Deegan 770d1e858d Use a reserved pfn in the guest address space to store mem event rings
This solves a long-standing issue in which the pages backing these rings were
pages belonging to dom0 user-space processes. Thus, if the process would die
unexpectedly, Xen would keep posting events to a page now belonging to some
other process.

We update all API-consumers in tree (xenpaging and xen-access).

This is an API/ABI change, so please speak up if it breaks your accumptions.

The patch touches tools, hypervisor x86/hvm bits, and hypervisor x86/mm bits.

Signed-off-by: Andres Lagar-Cavilla <andres@lagarcavilla.org>
Acked-by: Tim Deegan <tim@xen.org>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
Committed-by: Tim Deegan <tim@xen.org>
2012-03-08 16:40:05 +00:00
Paul Durrant 8f76fc6c98 tools: VM generation ID save/restore and migrate.
Add code to track the address of the VM generation ID buffer across a
save/restore or migrate, and increment it as necessary.
The address of the buffer is written into xenstore by hvmloader at
boot time. It must be read from xenstore by the caller of
xc_domain_save() and then written back again by the caller of
xc_domain_restore().

Note that the changes to xc_save.c and xc_restore.c are merely
sufficient for them to build.

Signed-off-by: Paul Durrant <paul.durrant@citrix.com>
Committed-by: Ian Jackson <ian.jackson.citrix.com>
2011-12-16 14:54:14 +00:00
Shriram Rajagopalan f6b3d39f5d tools/libxc: Remus Checkpoint Compression
Instead of sending dirty pages of guest memory as-is, use a simple compression
algorithm that sends a RLE-encoded XOR of the page against its last sent copy.
A small LRU cache is used to hold recently dirtied pages. Pagetable pages are
sent as-is, as they are canonicalized at sender side and uncanonicalized at
receiver.

[ Fixed up a conflict in sg_save_restore.h.  I had to increase the
  ID values used from -11 and -12 to -12 and -13 because -11 had
  been taken by ..._HVM_VIRIDIAN in the meantime. -iwj ]

Signed-off-by: Shriram Rajagopalan <rshriram@cs.ubc.ca>
Acked-by: Brendan Cully <brendan@cs.ubc.ca>
Acked-by: Ian Jackson <ian.jackson@eu.citrix.com>
Committed-by: Ian Jackson <ian.jackson@eu.citrix.com>
2011-12-01 15:36:15 +00:00
Paul Durrant 26ddefddf0 Fix save/restore for HVM domains with viridian=1
xc_domain_save/restore currently pay no attention to
HVM_PARAM_VIRIDIAN which results in an HVM domain running a recent
version on Windows (post-Vista) locking up on a domain restore due to
EOIs (done via a viridian MSR write) being silently dropped.  This
patch adds an extra save entry for the viridian parameter and also
adds code in the viridian kernel module to catch attempted use of
viridian functionality when the HVM parameter has not been set.

Signed-off-by: Paul Durrant <paul.durrant@citrix.com>
Committed-by: Keir Fraser <keir@xen.org>
2011-11-25 15:30:41 +00:00
Anthony Perard a6aa655723 libxc: Save the HVM_PARAM_ACPI_IOPORTS_LOCATION
This will save the acpi_ioport_location hvm_param in the checkpoint file
and set the parameter in Xen at restore.

Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
Acked-by: Ian Jackson <ian.jackson@eu.citrix.com>
Signed-off-by: Ian Jackson <ian.jackson@eu.citrix.com>
2010-11-08 17:25:54 +00:00
Ian Campbell 2526ff6cc9 libxl: Fix migration of HVM guests
In the default "QemuDeviceModelRecord"-style HVM tail of the migration
protocol the size of the qemu save record is unknown at the receiver
and therefore it must read until EOF. This is not compatible with the
xl migration protocol which contains a post-migration handshake and
therefore cannot close the socket on the sending end.

What is required is an explicit length field for the save record,
which the "RemusDeviceModelState"-style HVM tail includes.

Rather than overload the "RemusDeviceModelState" name for a non-Remus
use case (on off chance that they need to diverge for some reason in
the future) introduce a third style called "DeviceModelRecord0002"
which is identical to current "RemusDeviceModelState"-style.

Hopefully the inclusion of a number here will allow easier extension
in the future without needing to come up with increasingly less
helpful names!

Also propagate errors from xc_domain_save and
libxl__domain_suspend_common to callers.

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Signed-off-by: Ian Jackson <ian.jackson@eu.citrix.com>
2010-10-28 12:19:43 +01:00
Ian Campbell d5023b6b5f libxc: add xc_maximum_ram_page to wrap XENMEM_maximum_ram_page
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Signed-off-by: Ian Jackson <ian.jackson@eu.citrix.com>
2010-10-18 17:17:25 +01:00
Ian Campbell 00a4b65f85 libxc: provide notification of final checkpoint to restore end
When the restore code sees this notification it will restore the
currently in-progress checkpoint when it completes.

This allows the restore end to finish up without waiting for a
spurious timeout on the receive fd and thereby avoids unnecessary
error logging in the case of a successful migration or restore.

In the normal migration or restore case the first checkpoint is always
the last. For a rolling checkpoint (such as Remus) the notification is
currently unused but could be used in the future for example to
provide a controlled failover for reasons other than error

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Acked-by: Brendan Cully <brendan@cs.ubc.ca>
Signed-off-by: Ian Jackson <ian.jackson@eu.citrix.com>
2010-09-07 19:08:11 +01:00
Ian Campbell 59e3c6a2c6 libxc: document save/restore protocol
Reverse engineered from the code, likely contains inaccuracies but I
think provides a base to work from.

Add symbolic names for the minus-flags.

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Signed-off-by: Ian Jackson <ian.jackson@eu.citrix.com>
2010-09-03 18:38:11 +01:00
Ian Campbell 6993e9f5ce # HG changeset patch
# User Ian Campbell <ian.campbell@citrix.com>
# Date 1282671421 -3600
# Node ID d1dd29a470ef1b9d2c77478a123326036dfe90bb
# Parent  d7a4adad9c328decbd384d87b23001aea8951b86
tools/libxc, tools/libelf: Relicense under LGPL v2.1

Relicense these two libraries under LGPL v2.1 only except where
individual files already included the "or later" provision.

Copyright holders have been contacted by Stephen Spector and have all
agreed this change.

Removed tools/libxc/ia64/aclinux.h since it appeared to be
unused. There is a separate, more up to date, copy in
xen/include/acpi/platform/aclinux.h which does appear to be used.

Clarify the license of MiniOS privcmd.h under the same terms as other
tools/include/xen-sys headers.

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Acked-by: Stephen Spector <stephen.spector@citrix.com>
Signed-off-by: Ian Jackson <ian.jackson@eu.citrix.com>
2010-08-24 18:42:59 +01:00
Keir Fraser 5cc436c1d2 libxc: eliminate static variables, use xentoollog; API change
This patch eliminate the global variables in libxenctrl (used for
logging and error reporting).

Instead the information which was in the global variables is now in a
new xc_interface* opaque structure, which xc_interface open returns
instead of the raw file descriptor; furthermore, logging is done via
xentoollog.

There are three new parameters to xc_interface_open to control the
logging, but existing callers can just pass "0" for all three to get
the old behaviour.

All libxc callers have been adjusted accordingly.

Also update QEMU_TAG for corresponding qemu change.

Signed-off-by: Ian Jackson <ian.jackson@eu.citrix.com>
2010-05-28 09:30:19 +01:00
Keir Fraser 60999322eb libxc: create a domain_info_context structure to store guest_width and p2m_size for macros.
Macro now refers to guest_width and p2m_size through a dinfo pointer.

Signed-off-by: Vincent Hanquez <vincent.hanquez@eu.citrix.com>
2009-12-01 13:53:14 +00:00
Keir Fraser 50bddc9307 libxc: The following patch replace the libxc interface to use
vcpu_guest_context_any_t (which is both 32 and 64 bits) instead of
vcpu_guest_context_t.

Signed-off-by: Jean Guyader <jean.guyader@eu.citrix.com>
2008-06-19 16:15:05 +01:00
Keir Fraser cbd2de3952 Tools: fix save/restore of 32-bit PV guests with 64-bit tools
by removing some obvious typos, handling CR3 folding and hvirt_start
based on guest word-size, and understanding 32-bit INVALID_MFN.

Signed-off-by: Tim Deegan <Tim.Deegan@citrix.com>
2008-02-13 10:43:13 +00:00
Tim Deegan 120bafda14 [TOOLS] Make xc_domain_{save, restore} understand compat guests
Signed-off-by: Tim Deegan <Tim.Deegan@xensource.com>
2007-09-19 17:44:23 +01:00
Keir Fraser 4062095bcb Move some definitions from xg_save_resotre.h to xg_private.h
which are necessary for the new dump core implementation.

Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
2007-02-24 14:19:42 +00:00
kfraser@localhost.localdomain f4e8a7e419 Implement clean return from save/restore failure (so that original
domain can continue execution).
Signed-off-by: Andrei Petrov <andrei.petrov@xensource.com>
2007-01-22 15:15:32 +00:00
Emmanuel Ackaouy b1cf3deb81 Support for save and restore of compatibility guests
Signed-off-by: Emmanuel Ackaouy <ack@xensource.com>
2007-01-05 17:34:43 +00:00
Steven Hand bcef756eb4 Remove unused #defines.
Signed-off-by: Steven Hand <steven@xensource.com>
2006-12-29 13:02:19 +00:00
kaf24@firebug.cl.cam.ac.uk 2928514138 [LIBXC] Convert all printf/fprintf uses to use a macro instead.
Thus all can be disabled at compile time. It would be easy to
make enabling/disabling a run-time option too.
Signed-off-by: Keir Fraser <keir@xensource.com>
2006-06-07 14:07:36 +01:00
kaf24@firebug.cl.cam.ac.uk ab8096f27d Represent PFNs with their own type, rather than 'unsigned long'.
('long' changes size and alignment between 32- and 64-bit ABIs.)
Signed-off-by: Hollis Blanchard <hollisb@us.ibm.com>
2006-06-06 09:48:17 +01:00
kaf24@firebug.cl.cam.ac.uk c702fb4c9d Fix whitespace in libxc. Tabs are manually fixed.
Trailing whitespace removed with:
 perl -p -i -e 's/\s+$/\n/g' tools/libxc/*.[ch]

Signed-off-by: Hollis Blanchard <hollisb@us.ibm.com>
2006-04-15 10:07:31 +01:00
emellor@leeni.uk.xensource.com df2ba9e15b Added the errno to the messages printed with the ERR macro. Tidy the use of
this macro where newlines have been appended -- the macro does this itself so
there is no need to add another one.

Signed-off-by: Ewan Mellor <ewan@xensource.com>
2005-11-30 18:38:14 +00:00
kaf24@firebug.cl.cam.ac.uk 9ba9cbdb3f Update the memory_op() hypercall. Add two new subcommands, to
query a domain's current and maximum memory reservation. Also,
XENMEM_maximum_ram_page now returns the max_page directly,
rather than writing through a passed-in pointer.

Also, disable PAE in the default config (accidentally checked
in two changesets ago).

Signed-off-by: Keir Fraser <keir@xensource.com>
2005-11-21 16:56:39 +01:00
smh22@firebug.cl.cam.ac.uk 7cdf0f6407 Fix 'belt + braces' check in xc_linux_save and improve error handling
for live migrate (this includes making shadow enable idempotent). 

Signed-off-by: Steven Hand <steven@xensource.com>
2005-11-21 16:40:16 +01:00
smh22@firebug.cl.cam.ac.uk 4c908cf0e3 Many fixes for save/restore and related areas for PAE in particular. Now
should be able to save/restore successfully on machines with up to 16GB 
and any size of guest. 

Signed-off-by: Steven Hand <steven@xensource.com>
2005-11-16 17:45:03 +01:00
kaf24@firebug.cl.cam.ac.uk 568a59e7fc Rename XENVER_parameters to slightly more informative
XENVER_platform_parameters.

Signed-off-by: Keir Fraser <keir@xensource.com>
2005-11-16 12:44:12 +01:00
smh22@firebug.cl.cam.ac.uk b99415e527 More fixes for save/restore; use configured memory for generating sxp.
Signed-off-by: Steven Hand <steven@xensource.com>
2005-11-09 13:59:53 +01:00
smh22@firebug.cl.cam.ac.uk 7962b47d8b Enable save/restore for PAE domains.
This includes quite a few cleanups / refactoring of the old code, some
of which is intended to prepare for 64-bit save/restore. 

Signed-off-by: Steven Hand <steven@xensource.com>
2005-11-08 18:42:07 +01:00