xend: Catch VmError exception when creating a domain and do
appropriate cleanup.
Signed-off-by: Masaki Kanno <kanno.masaki@jp.fujitsu.com>

acm: Fix bogus domain_rcu_lock() invocations to rcu_unlock_domain().
Signed-off-by: Stefan Berger <stefanb@us.ibm.com>

[XEN] Remove a race condition in shadow mark_dirty code.
Signed-off-by: Tim Deegan <Tim.Deegan@xensource.com>

linux: Support new 'fast suspend' mode which does not require us to
hotplug all auxiliary CPUs.
Signed-off-by: Keir Fraser <keir@xensource.com>

tools: Advertise save/restore multiple VCPU contexts capability.
This capability means that save/restore will remember contexts of all
online VCPUs at the time of final guest suspend. Any initialised but
offline VCPUs will not be saved!
Signed-off-by: Keir Fraser <keir@xensource.com>

[xenstored] Fix error path when xc_map_foreign_range fails.
If xc_map_foreign_range fails, the new domain object is freed,
but it is not removed from the connection list.

Signed-off-by: Christian Limpach <Christian.Limpach@xensource.com>

Save/restore context of all online VCPUs in PV save/restore/migrate.
Signed-off-by: Keir Fraser <keir@xensource.com>

[tools] Set guest address size to be the same as dom0 address size on restore.

Signed-off-by: Christian Limpach <Christian.Limpach@xensource.com>

[XEN] Check that the cr3 mfn is valid before using it.

Signed-off-by: Christian Limpach <Christian.Limpach@xensource.com>

linux: No need to kmem_cache_shrink(pgd_cache) on save/restore.
Signed-off-by: Keir Fraser <keir@xensource.com>

Fully reset the xenstore connection when a domain is (re)introduced to xenstored.
Signed-off-by: Keir Fraser <keir@xensource.com>

[HVM] Save/restore: remove bogus "valid state" check
Signed-off-by: Tim Deegan <Tim.Deegan@xensource.com>

hvm: Clean up console-information passing via xenstore.

Each serial, parallel and monitor device in qemu that is connected to
a pty creates a xenstore node of the form:
 <domain-path>/monitor/tty
 <domain-path>/serial/<n>/tty
 <domain-path>/parallel/<n>/tty

In addition, serial/0 (com1) also registers its information at:
 <domain-path>/console/tty

Also fix a realloc() failure memory leak.

Signed-off-by: Ben Thomas <ben@virtualiron.com>

Fix Xend domain_lookup error report when looking up an invalid
domain: raise the correct error code (XendInvalidDomain instead of
XendError). Also remove redundance exception code that is handled by
domain_lookup.

Signed-off-by: Yung Giang <ygiang@gmail.com>

acm: Fix the traversal of the event channel buckets and use the active
grant table entries instead of the shared ones. I had to move some
functions from grant_table.c into grant_table.h to make them usable by
the ACM module.

Signed-off-by: Stefan Berger <stefanb@us.ibm.com>

Create P2M map during Mini-OS boot (fixes 'xm dump-core').
Signed-off-by: Grzegorz Milos <gm281@cam.ac.uk>

Fix PAE Mini-OS build.
Signed-off-by: Grzegorz Milos <gm281@cam.ac.uk>

x86: No need to take full reference when doing mmu_update on a foreign
domain. Also fix a pre-existing race setting PGT_pinned versus
clearing it during domain_kill().
Signed-off-by: Keir Fraser <keir@xensource.com>

xen: Cleanups and bug fixes after the rcu_lock_domain patch.
Signed-off-by: Keir Fraser <keir@xensource.com>

Remove Xen workaround for HVM builder now that it's fixed
Signed-off-by: Tim Deegan <Tim.Deegan@xensource.com>

Merge

[HVM] Builder must know which kind of vcpu context struct to use
when the tools are being run in a compat-mode domain
Signed-off-by: Tim Deegan <Tim.Deegan@xensource.com>

xen: Use RCU-based domain-locking functions where appropriate.
Signed-off-by: Jose Renato Santos <jsantos@hpl.hp.com>

xen: Last minute rename of RCU domain get/put functions:
 find_domain_rcu_lock -> rcu_lock_domain_by_id
 domain_rcu_unlock    -> rcu_unlock_domain
Signed-off-by: Keir Fraser <keir@xensource.com>

hvm/ia64: Fix IDE PIO acceleration.
Signed-off-by: Kouya Shimura <kouya@jp.fujitsu.com>

Change compat-check in set_vcpucontext again. Give caller leeway for
HVM guests only.
Signed-off-by: Keir Fraser <keir@xensource.com>

[XEN] Fix cset 14166
Signed-off-by: Tim Deegan <Tim.Deegan@xensource.com>

Use stat to poll on phantom device until it becomes ready

    Signed-off by Wim Colgate <wim@xensource.com>

libxc: Quieten the discard_file_cache() function. Preserve errno
across it. No longer make calls to the function dependent on 'non-live
save/restore': it's not a good test of whether the fd is a socket.
Signed-off-by: Keir Fraser <keir@xensource.com>

Fix init.d/xendomains startup script so log_error and log_success
will also work on redhat-based distributions before RHEL 5. See
discussion "xendomains init script" about a year ago on xen-devel.

Signed-off-by: Florian Kirstein <ray@ray.net>

linux: More save/restore fixes. Fix deadlock of cpu_hotplug_lock vs
workqueue_mutex. This is a new deadlock since the workqueue_mutex is
acquired in the workqueue_cpu_calbback() function across
CPU_UP_PREPARE->CPU_ONLINE.

The fix is for us not to rudely grab the cpu_hotplug_lock() during
save/restore -- it's really not necessary.

This patch is applicable to any of our 2.6 kernels, but is absolutely
required from 2.6.18 onwards.

Signed-off-by: Keir Fraser <keir@xensource.com>

[XEN][SHADOW] Use slow method for early-unshadow

The "fast" method fails a significant portion of the time.
unshadow will still use the "fast" method, but will fall
back to a brute-force method if it fails.

Signed-off-by: George Dunlap <gdunlap@xensource.com>

[XEN][SHADOW] Fix early-unshadow logic.

Make sure to reset the early-unshadow logic when we
do a fast-path propagate or when we emulate a non-zero
write.

Signed-off-by: George Dunlap <gdunlap@xensource.com>

hvm: Only do hvm_disable() on HVM-enabled systems.

Original patch by Jan Beulich.
Signed-off-by: Keir Fraser <keir@xensource.com>

linux: Disable idle-loop alternatives.

ACPI and APM idle functions in particular are not suitable choices
when running on Xen.

Signed-off-by: Keir Fraser <keir@xensource.com>

linux: Split suspend_mutex into watch_mutex and transaction_mutex.
This clarifies their usage and relationship with request_mutex and
response_mutex.
Signed-off-by: Keir Fraser <keir@xensource.com>

More PV save/restore fixes.

Related changesets:
 14148:b67c253d1cdb4f502dec2
 13519:b4a8000e76db6b4b27341

These three changesets must be applied as a set!

Signed-off-by: Keir Fraser <keir@xensource.com>

Fix 32-bit x86 compile

[XEN] Compat-mode dom0 always provides compat vcpu_guest_context structs.
Update arch_set_info_guest to do the right thing.
Signed-off-by: Tim Deegan <Tim.Deegan@xensource.com>

[XEN] Make the compat-mode l4 page table look more like a page table
and remove some special-case code in the shadows.
Signed-off-by: Tim Deegan <Tim.Deegan@xensource.com>

[XEN] No need to change the compat mode of the guest in xen.
The tools set the compat mode already explicitly.

Signed-off-by: Christian Limpach <Christian.Limpach@xensource.com>

Loop on actual elfnote array size rather than depending on ELFNOTE_MAX
macro.
Signed-off-by: Keir Fraser <keir@xensource.com>

Add suspend_cancel flag to linux elf notes.

Signed-off-by: Brendan Cully <brendan@cs.ubc.ca>

Add xm save -c/--checkpoint option

xm save --checkpoint leaves the domain running after creating the
snapshot.

Signed-off-by: Brendan Cully <brendan@cs.ubc.ca>

Let xend choose to do hard or soft domain resumption depending on
whether the domain advertises support for soft resumption in its
elfnotes.

Signed-off-by: Brendan Cully <brendan@kublai.com>

Fix off-by-one preventing the last elfnote from being read in xc.c.

Signed-off-by: Brendan Cully <brendan@cs.ubc.ca>

Add openssl-dev and xorg-x11-dev to README

Attached is a documentation patch to the top-level README file; it
just adds two notes saying that you need to have openssl-devel and
xorg-x11-devel installed to successfully complete a "make world" at
the top level.

Signed-off-by: Chris Lalancette <clalance@redhat.com>

[XEN] [ACM] Simplify the event channel scanning

This patch simplifies the scanning of a domain's event channels
considering that an 'ECS_UNBOUND' event channel is not connected and
can be skipped.

Signed-off-by: Stefan Berger <stefanb@us.ibm.com>

Fix for Solaris compile/output for VBDs in xentop.
Signed-off-by: John Levon <john.levon@sun.com>

merge

[TOOLS] Add support for XEN_ELFNOTE_L1_MFN_VALID to readnotes.

Signed-off-by: Ian Campbell <ian.campbell@xensource.com>

Accelerate IDE PIO on HVM/IA64 [3/3]

Add a bufferring mechanism for IDE PIO in a hypervisor.

Signed-off-by: Kouya Shimura <kouya@jp.fujitsu.com>

Accelerate IDE PIO on HVM/IA64 [2/3]

Add one more page to the guest for IDE PIO.

Signed-off-by: Kouya Shimura <kouya@jp.fujitsu.com>

Accelerate IDE PIO on HVM/IA64 [1/3]

Add a bufferring mechanism for IDE PIO in qemu.

Signed-off-by: Kouya Shimura <kouya@jp.fujitsu.com>

Fix save/restore (and non-live migrate) on PAE.
Plus add some more debug output to help us spot similar issues in the future.

Signed-off-by: Steven Hand <steven@xensource.com>

Added SXP pretty-printer.

Signed-off-by: Ewan Mellor <ewan@xensource.com>

linux: Don't allow partial message raeds from xenstore across
save/restore. This patch is an essential companion to
13519:b4a8000e76db6b4b27341.
Signed-off-by: Keir Fraser <keir@xensource.com>

Fix exception handling to cope with exceptions that do not have a string as
the first argument.

Signed-off-by: Ewan Mellor <ewan@xensource.com>

[TOOLS] Make xentrace help a little more informative.

Signed-off-by: George Dunlap <gdunlap@xensource.com>

Merge

[TOOLS] Added option to xentrace to discard records in the buffer
before beginning the trace.

Signed-off-by: George Dunlap <gdunlap@xensource.com>

x86: Fix BUG() crash in mm.c.
Signed-off-by: Keir Fraser <keir@xensource.com>

Fix missing bits of the docs from cset 14020, and match that change by removing
the similar fields on host_metrics, PIF_metrics, and VM_guest_metrics.

Signed-off-by: Ewan Mellor <ewan@xensource.com>

Implementation of host_metrics.get_all, PIF_metrics.get_all, and docs and
bindings for many of the get_all methods elsewhere that Xend already
implemented.

Signed-off-by: Ewan Mellor <ewan@xensource.com>

Added some more fields to host_cpu.

Signed-off-by: Ewan Mellor <ewan@xensource.com>

[HVM][SVM] Save/Restore: Remove commented out code
Code not needed by SVM as the "VM_ENTRY_CONTROLS" register doesn't
exist.

Signed off: Mats Petersson (mats.petersson@amd.com)

Missing files from previous changeset.
Signed-off-by: Thomas Friebel <thomas.friebel@amd.com>

[xentrace][HVM] introduce HVM tracing to unify SVM and VMX tracing

* new tracing class TRC_HVM replacing TRC_VMX

* 20 new trace events to differentiate the information carried by them
** added corresponding trace points in SVM and VMX code
** updated formats file: descriptive formatting of trace event data
** completely replacing previous simple tracing in VMX

* possibility to toggle single events on and off at compile time in
  include/asm-x86/hvm/trace.h

Signed-off-by: Thomas Friebel <thomas.friebel@amd.com>

x86: Update map_pages_to_xen() to avoid arithmetic based on
uninitialised frame_table variable.
Signed-off-by: Keir Fraser <keir@xensource.com>

x86: Clean up {alloc,free}_xen_pagetable() interface to avoid use of
frame_table variable before initialisation. This wasn't a bug, but was
confusing.
Signed-off-by: Keir Fraser <keir@xensource.com>

Add argument check for xm network-attach command

Signed-off-by: Masaki Kanno <kanno.masaki@jp.fujitsu.com>

Fix xm vcpu-set command for when wrong number of VCPU is given

Signed-off-by: Masaki Kanno <kanno.masaki@jp.fujitsu.com>

Move credit scheduler configuration into XendDomainInfo, so that the domain
will be cleaned up correctly if the scheduler parameters are wrong.

Signed-off-by: Masaki Kanno <kanno.masaki@jp.fujitsu.com>

Merge

[TOOLS] fix sizeof() usage in xc_core
Signed-off-by: Tim Deegan <Tim.Deegan@xensource.com>

linux: Fix backward compatibility in page table handling

A 3.0.2 compatibility requirement slipped my attention before
submitting the original page table handling changes.

Signed-off-by: Jan Beulich <jbeulich@novell.com>

[XEN] Allow log-dirty mode to be enabled on already-shadowed domains.
and catch a few missing mark_dirty() calls
Signed-off-by: Tim Deegan <Tim.Deegan@xensource.com>

Remap PCI-ISA IRQ 6 to IRQ 7. Disable LPT1 by default and remove its
definition from the ACPI DSDT. This avoids conflict with FDC on IRQ6
(it is a bit more likely that someone will want to connect a floppy
image to a guest than it is that anyone will ever care about
parallel-port functionality).
Signed-off-by: Keir Fraser <keir@xensource.com>

Resolve conflict over use of name xen_elfnote.
Signed-off-by: Keir Fraser <keir@xensource.com>

Merge

[HVM] Shadow: always use mmio_space() to detect MMIO addresses
Signed-off-by: Tim Deegan <Tim.Deegan@xensource.com>

libxc, ia64: Added new arch_hook for registering ia64 big endian images.
Signed-off-by: Dietmar Hahn <dietmar.hahn@fujitsu-siemens.com>

Save elfnotes in VM sxpr under image/notes, and load them on restore.
Signed-off-by: Brendan Cully <brendan@cs.ubc.ca>

Write Xen ELF notes into xenstore on domain build.
Signed-off-by: Brendan Cully <brendan@cs.ubc.ca>

[HVM] Revert cset 14083
which was wrong, and not very useful.
Signed-off-by: Tim Deegan <Tim.Deegan@xensource.com>

xm-test, acm: Use xvda* device name instead of sdb* device inside guest domain.
Signed-off-by: Stefan Berger <stefanb@us.ibm.com>

Remove duplicate #includes from Linux sparese-tree file.
From: Chuck Short <zulcss@gmail.com>
Signed-off-by: Keir Fraser <keir@xensource.com>

fix PDPE entry in P2M table under 32bit PAE hypervisor

Remove unused network.default_{gateway,netmask}.

Signed-off-by: Ewan Mellor <ewan@xensource.com>

Redefine units of VDI.virtual_size to be bytes, not sectors.

Signed-off-by: Ewan Mellor <ewan@xensource.com>

Added host.capabilities field.

Signed-off-by: Ewan Mellor <ewan@xensource.com>

Replace VM.tools_version with a richer VM_guest_metrics class.

Signed-off-by: Ewan Mellor <ewan@xensource.com>

Added documentation and C bindings for VBD/VIF.status_detail, status_code, and
currently_attached fields.  Not yet implemented.

Signed-off-by: Ewan Mellor <ewan@xensource.com>

Added a VM.domid field.

Signed-off-by: Ewan Mellor <ewan@xensource.com>

Remove the bindings for VM.get_VCPUs_{number,utilisation} -- these have moved
onto the metrics class.

Signed-off-by: Ewan Mellor <ewan@xensource.com>

Fix typo in host record.

Signed-off-by: Ewan Mellor <ewan@xensource.com>

Added tab completion for methods and object references to xm shell.

Signed-off-by: Ewan Mellor <ewan@xensource.com>

Added host.API_version_{major,minor,vendor,vendor_implementation} fields.

Fix missing host.other_config from the record returned by Xend.

Improve the error diagnosis when we catch TypeError.

Signed-off-by: Ewan Mellor <ewan@xensource.com>

Added VBD. and VIF.qos_supported_algorithms fields, with C bindings, Xend
implementation to follow.

Signed-off-by: Ewan Mellor <ewan@xensource.com>

libxc: Code format cleanups.
Signed-off-by: Keir Fraser <keir@xensource.com>