and populate it at boot time with a value read from
"platform/generation_id". Also add code to libxl to populate this
xenstore key with the value of a new 'generation_id' parameter in the
VM config file. Populate the ADDR package of VM_Gen_Counter ACPI
device such that the first integer evaluates to the low order 32 bits
of the buffer address and the second integer evaluates to the high
order 32 bits of the buffer address.
Signed-off-by: Paul Durrant <paul.durrant@citrix.com>
Committed-by: Keir Fraser <keir@xen.org>
evaluating to two integers, and with _CID and _DDN set to
"VM_Gen_Counter".
Signed-off-by: Paul Durrant <paul.durrant@citrix.com>
Committed-by: Keir Fraser <keir@xen.org>
I found this patch useful a couple of times while trying to debug the
viridian problem. irq_dump() was #ifdef-ed out so this patch puts it
back and registers a handler on the 'I' key to iterate over all HVM
domains and call it.
Signed-off-by: Paul Durrant <paul.durrant@citrix.com>
Committed-by: Keir Fraser <keir@xen.org>
The val is used as the pagetable entry with the machine
frame number and some page table bits. This explains
what those page table bits are.
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Committed-by: Ian Jackson <ian.jackson.citrix.com>
There are some implicit requirements when using the hypercall
which are not mentioned.
Mainly the requirement that the pagetable be RO.
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Committed-by: Ian Jackson <ian.jackson.citrix.com>
Include hypercall documentation, fixing link generation for top level links to
use the INDEX.
Allow subsection links to be renamedi in the INDEX too.
Strip .txt suffixes as well as .html ones by moving the regex to the right
place instead of placing the literal text "(?:html|txt)" into the backlink to
the top level page. (oops)
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Committed-by: Ian Jackson <ian.jackson@eu.citrix.com>
Add annotations for a couple of the hypercalls:
HYPERVISOR_set_trap_table
HYPERVISOR_mmu_update
We do this by
* annotating the list of #defines for hypercall numbers
* annotating the list of error values
* providing a function prototype for the systematically-named functions
The header generator does the rest.
This exercise revealed a couple of infelicities:
* In the actual source code, do_mmu_update is defined to return an int
and do_set_trap_table a long. However both functions return either
-Efoo (on error) or 0 for success.
* The error numbers are defined only in the private header file
xen/include/xen/errno.h and then only with names which will
typically clash with other projects. It would be nice to include a
public version of this header which defines XEN_E*. But for now
we run xen-headers on errno.h too.
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>
"xen-headers" generates HTML from header files. So far this generates
just some type cross-references, if you say
make -C docs html/hypercall/stamp
An index page, proper wiring into the build system, and a few more
annotations in the headers, and will be forthcoming.
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>
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Committed-by: Ian Jackson <ian.jackson.citrix.com>
Acked-by: Ian Jackson <ian.jackson.citrix.com>
Turning this on for Windows guests is recommended.
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Committed-by: Ian Jackson <ian.jackson.citrix.com>
Acked-by: Ian Jackson <ian.jackson.citrix.com>
A browser will display them just fine.
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Committed-by: Ian Jackson <ian.jackson.citrix.com>
Acked-by: Ian Jackson <ian.jackson.citrix.com>
This is much more natural. Continue to support the old syntax in xl
but deprecate it.
[ Fixed up a long line in xl_cmdimpl.c. -iwj ]
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Committed-by: Ian Jackson <ian.jackson@eu.citrix.com>
Returns a cfg list as a libxl_string_list.
Use this to simplify the parsing of device model extra args.
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Committed-by: Ian Jackson <ian.jackson.citrix.com>
Acked-by: Ian Jackson <ian.jackson.citrix.com>
Taking over the top level "user" entry with a relatively obsolete document is a
bit of an annoyance but these docs are not so out of date that they should be
deleted. Move them out of the top-level instead.
(the original motivation here was to allow for user/xl-domain-cfg.markdown but
we have since decided to go with man/xl.cfg.pod.5 instead so perhaps this is a
waste of time)
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Committed-by: Ian Jackson <ian.jackson.citrix.com>
Acked-by: Ian Jackson <ian.jackson.citrix.com>
nb: I'm not a Perl wizard...
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Committed-by: Ian Jackson <ian.jackson.citrix.com>
Acked-by: Ian Jackson <ian.jackson.citrix.com>
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Committed-by: Ian Jackson <ian.jackson.citrix.com>
Acked-by: Ian Jackson <ian.jackson.citrix.com>
This document contains several 0xa0 characters (non-breaking spaces). These do
not display correctly in (some) terminals or when the document is rendered by (some)
browsers. Re-encode them as spaces.
I'm not confident that this change will make it through being encoded as a patch
and sent through email. Its effect can be replicated with:
perl -i -p -e 's/\xa0/ /g' docs/misc/sedf_scheduler_mini-HOWTO.txt
[ I ran the rune rather than trying to apply the patch -iwj ]
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Committed-by: Ian Jackson <ian.jackson@eu.citrix.com>
Add an enum at the libxl level with a hopefully descriptive set of names.
Deprecate the use of an integer in xl cfg files.
Signed-off-by: Ian Campbell
Committed-by: Ian Jackson <ian.jackson.citrix.com>
Acked-by: Ian Jackson <ian.jackson.citrix.com>
I want it for get_long but we might as well have it everywhere.
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Committed-by: Ian Jackson <ian.jackson.citrix.com>
Acked-by: Ian Jackson <ian.jackson.citrix.com>
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Committed-by: Ian Jackson <ian.jackson.citrix.com>
Acked-by: Ian Jackson <ian.jackson.citrix.com>
Based on an initial version by Ian Jackson.
I believe that all keys are now present in the document although there are are
various omissions in the actual documentation of them. Hopefully however this
covers the majority of the most interesting keys.
Spice section:
Signed-off-by: Zhou Peng <zhoupeng@nfs.iscas.ac.cn>
Committed-by: Ian Jackson <ian.jackson.citrix.com>
Acked-by: Ian Jackson <ian.jackson.citrix.com>
The rest:
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Committed-by: Ian Jackson <ian.jackson.citrix.com>
Acked-by: Ian Jackson <ian.jackson.citrix.com>
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Committed-by: Ian Jackson <ian.jackson.citrix.com>
Acked-by: Ian Jackson <ian.jackson.citrix.com>
although this tool is strictly speaking optional we are providing various user
docs in this format so increase the changes that they will install it.
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Committed-by: Ian Jackson <ian.jackson.citrix.com>
Acked-by: Ian Jackson <ian.jackson.citrix.com>
This is rather critical...
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Committed-by: Ian Jackson <ian.jackson.citrix.com>
Acked-by: Ian Jackson <ian.jackson.citrix.com>
I have confirmed that the relevant pages have been transitioned.
What remains is pages which have not yet been moved over:
$ rgrep xenwiki *
tools/libxen/README:http://wiki.xensource.com/xenwiki/XenApi
tools/xenballoon/xenballoond.README:http://wiki.xensource.com/xenwiki/Open_Topics_For_Discussion?action=AttachFile&do=get&target=Memory+Overcommit.pdf
Note that "PythonInXlConfig" never existed in the old wiki and does not exist
in the new. This reference was introduced by 22735:cb94dbe20f97 and was
supposed to have been written prior to the 4.1 release. I have transitioned it
anyway but it's not clear how valuable the message actually is. Perhaps we
should just remove that aspect of it?
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Committed-by: Ian Jackson <ian.jackson.citrix.com>
Acked-by: Ian Jackson <ian.jackson.citrix.com>
Failure here means that a disk will not be correctly setup. I briefly
scanned tools/blktap2/control.c for other goto constructs which did not
set their err variable but didn't see any others.
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Committed-by: Ian Jackson <ian.jackson@eu.citrix.com>
These two changesets:
24184:4ecd3615e726 tools: use system installed libaio by default.
24186:7aa5838499d1 tools: use system libaio for blktap1 as well.
cause HVM guest installs (both Windows and Redhat) to fail on Debian
squeeze with xl. So change the default for now.
Committed-by: Ian Jackson <ian.jackson@eu.citrix.com>
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>
Without this change it is not possible to page-out all guest pages, then
trigger a page-in for all pages, and then page-out everything once
again. All pages in the mru list can not be paged out because they
remain active in the internal bitmap of paged pages.
Use the mru list only if the number of paged-out pages is larger than
the mru list. If the number is smaller, start to clear the mru list. In
case the number of paged-out pages drops to zero the mru list and the
internal bitmap will be empty as well.
Also add a new interface for dropped pages. If a gfn was dropped there
is no need to adjust the mru list because dropping a page is not usage
of a page.
Signed-off-by: Olaf Hering <olaf@aepfle.de>
Committed-by: Ian Jackson <ian.jackson.citrix.com>
Introduce a cmdline handling for the pager. This simplifies libxl support,
debug and mru_size are not passed via the environment anymore.
The new interface looks like this:
xenpaging [options] -f <pagefile> -d <domain_id>
options:
-d <domid> --domain=<domid> numerical domain_id of guest. This option is required.
-f <file> --pagefile=<file> pagefile to use. This option is required.
-m <max_memkb> --max_memkb=<max_memkb> maximum amount of memory to handle.
-r <num> --mru_size=<num> number of paged-in pages to keep in memory.
-d --debug enable debug output.
-h --help this output.
Signed-off-by: Olaf Hering <olaf@aepfle.de>
Committed-by: Ian Jackson <ian.jackson.citrix.com>
Subsequent patches will use xenstored to store the numbers of pages
xenpaging is suppose to page-out.
Remove num_pages and use target_pages instead.
Signed-off-by: Olaf Hering <olaf@aepfle.de>
Committed-by: Ian Jackson <ian.jackson.citrix.com>
This change reverses the task of xenpaging. Before this change a fixed number
of pages was paged out. With this change the guest will not have access to
more than the given number of pages at the same time.
Signed-off-by: Olaf Hering <olaf@aepfle.de>
Committed-by: Ian Jackson <ian.jackson.citrix.com>
In preparation of upcoming libxl integration,
move xenpaging binary from /usr/sbin/ to /usr/lib/xen/bin/
Signed-off-by: Olaf Hering <olaf@aepfle.de>
Committed-by: Ian Jackson <ian.jackson.citrix.com>
Nomination of gfns can fail, but may succeed later.
Thats the case for a guest that starts ballooned.
v2:
- print debug when clearing uncosumed happens
Signed-off-by: Olaf Hering <olaf@aepfle.de>
Committed-by: Ian Jackson <ian.jackson.citrix.com>
Remove the if/else logic to exit from the in case a signal arrives.
Update comments.
Signed-off-by: Olaf Hering <olaf@aepfle.de>
Committed-by: Ian Jackson <ian.jackson.citrix.com>
Move page resume loop into its own function.
Move page eviction loop into its own function.
Allocate all possible slots in a paging file to allow growing and
shrinking of the number of paged-out pages. Adjust other places to
iterate over all slots.
This change is required by subsequent patches.
v2:
- check if victims allocation succeeded
Signed-off-by: Olaf Hering <olaf@aepfle.de>
Committed-by: Ian Jackson <ian.jackson.citrix.com>
Paul Durrant
Jan Beulich
Konrad Rzeszutek Wilk
Ian Campbell
Ian Jackson
Keir Fraser
Olaf Hering