exact number of bytes. The consolidated versions are more watertight
than the various versions previously distributed around the library
source code.
Signed-off-by: Keir Fraser <keir@xensource.com>
Don't share privregs with hvm domain and twist IA64 xen dump core format
slightly. Xen shares privregs pages with IA64 HVM domain for xm dump-core
to dump the pages. However sharing the page allows hvm guest domain
peek/destroy the page contents that might cause xen crash. And the xen
dump core file doesn't need privregs page because cpu context should be
obtained from vcpu context in case of IA64 HVM domain.
Although this patch modify xen dump core format, current crash utility
(at least crash 4.0-4.7) doesn't look into .xen_ia64_mmapped_regs section
and I don't know any other tools to understand xen dump core file.
So this format modification doesn't cause incompatibility issue.
Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
On ia64 trying to map a foreign domain page which isn't allocated
cause annoying warning message. xm dump-core results in too many
warnings. With this hook, ia64 dump-core can suprress warning.
Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
usage by means of fadvise64() to tell the OS to discard the cache
pages used for the save/dump file.
Signed-off-by: Simon Graham <Simon.Graham@stratus.com>
added PFN-GMFN table for non-auto translated physmap
added PFN table for auto translated physmap.
HVM domain support.
IA64 support
Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
Use the guest's own p2m table instead of xc_get_pfn_list(), which
cannot handle PFNs with no MFN.
Dump a zeroed page for PFNs with no MFN.
Clearly deprecate xc_get_pfn_list().
Do not include a P2M table with HVM domains.
Refuse to dump HVM until we can map its pages with PFNs.
Signed-off-by: John Levon <john.levon@sun.com>
This kills off a fair amount of unpleasant CONFIG_COMPAT shimming and
avoids needing to keep the compat paths in sync as these interfaces
continue to develop.
Signed-off-by: Keir Fraser <keir@xensource.com>
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>
output. Refactor the code slightly to allow more user-specified
control. This is done by adding a parallel
xc_domain_dumpcore_via_callback, which allows the specification of a
callback routine and an opaque argument block. The existing dumpcore
routine is modified to use the callback for all write operations and
to turn the single seek into a small write (it's for page alignment).
Signed-off-by: Ben Thomas <bthomas@virtualiron.com>
xc_domain_getinfo returns information about a domain, but not
necessarily the one you asked about. Add check for this.
max_vcpu_id in xc_domain_getinfo is really an ID, not a count, so
make the loop include the last VCPU
Signed-off-by: Ben Thomas <ben@virtualiron.com>
to move blocks of memory 4096 pages at a time, and a buffer is
allocated for this. Unfortunately, the #define is without
parentheses and %/* are the same order and evaluated left to right.
Result: very big buffer being used 4 pages at a time.
Signed-off-by: Ben Thomas (bthomas@virtualiron.com)
The xen core files record a magic number,
but when they are loaded it isn't checked.
This patch resolves this.
Signed-Off-By: Horms <horms@verge.net.au>
n_vcpu field from GETDOMAININFO: replaced with
nr_online_vcpus and max_vcpu_id (both plumbed through to
Python).
TODO: Remove 'vcpus' entry in getdomaininfo Python
dictionary.
TODO: Don't represent 'cpumap' as a bitmap in Python.
It would be more sensible to represent as a list
of integer CPU numbers.
Signed-off-by: Keir Fraser <keir@xensource.com>
within Xen. Refactor GETVCPUCONTEXT into an op of the same
name plus a new op GETVCPUINFO. Move the cpumap and cpu info
arrays from GETDOMAININFO and move into new GETVCPUINFO.
Signed-off-by: Keir Fraser <keir@xensource.com>
Many files:
Merge interface changes from previous 'Split out context fetching into
separate DOM0 op' and 'xen,tools: pincpu use vcpu and cpumap_t' checkins.
xc_linux_save.c:
Undo incorrect change from previous patch.
xc.h, xc_domain.c:
Cleanup whitespace.
Signed-off-by: Christian Limpach <Christian.Limpach@cl.cam.ac.uk>
Split out context fetching into separate DOM0 op
make GETDOMAININFO a little more sensible with respect to MP
make coredump dump all cpu contexts
Signed-off-by: Kip Macy <kmacy@netapp.com>
Signed-off-by: Christian Limpach <Christian.Limpach@cl.cam.ac.uk>
