This patch does 2 jobs:

- Enforce the number of CPUs dom0 will take. See the new variable
"dom0-cpus" in xend-config.sxp (you will want to set this variable to
1 on SMP systems)

- Balloon out dom0 memory when creating domU, if there is not enough
free memory. The lowest level we will balloon out is configured via
the new variable "dom0-min-mem" in xend-config.sxp

I still have a doubt: where to put the code to enforce dom0-cpus. At
the moment I put it into
python/xen/xend/server/SrvDaemon.py, and hopefully that is resonable
enough. Any comment?

Signed-off-by: Nguyen Anh Quynh <aquynh@gmail.com>

Patch for 64-bit VMX guest destroy

64-bit VMX guest can't be destroyed without this patch, as guest page's
reference count problem.
This patch made two point of reference count correct:
1. In invlpg, the old page count need put.
2. There is a specail case for fl1's shadow reference count.=20
=20

Signed-off-by: Chengyuan Li <chengyuan.li@intel.com>
Signed-off-by: Jun Nakajima <jun.nakajima@intel.com>

Here is our latest patch to enable the Xen tools to
build and work with IA64 Xen.
Signed-off-by: Matt Chapman <matthewc@hp.com>
Acked-by: Dan Magenheimer <dan.magenheimer@hp.com>

Attached patch adds a DMA zone to xen, also modifies xen_contig_memory()
to ask for DMA pages.
Signed-off-by: srparish@us.ibm.com

This patch updates the CPU field in xm list for multi-vcpu domains.
When a dom runs on multiple physical cpus, the CPU field doesn't have
much meaning.  The suggested fix was to replace the value with '-'.
Signed-off-by: Ryan Harper <ryanh@us.ibm.com>

... for dom0 if we know we'll need it.  This is the xen
counterpart to the previous xenlinux patch which adds this
info to the kernel.  Also adds some printk's.

... so it builds again and also add a note to the xen elf header
that this kernel should be booted in shadow-translated mode.

Really just basic preparation: switch over PAE builds to the new
shadow code, drop old dummy functions, add (fewer) new ones.

fix x86_64 domain0 /dev/mem issue
x86_64 miss the define of ARCH_HAS_DEV_MEM, that causes
/drivers/char/mem.c to not show low 1M memory correctly.

Signed-off-by: Xiaofeng Ling <xiaofeng.ling@intel.com>

PDB: add some additional files

PDB: process targets

merge?

Don't unbind port when event channel binding fails.
This happens when xend tries to introduce the same domain twice.
Signed-off-by: Rusty Russel <rusty@rustcorp.com.au>
Signed-off-by: Christian Limpach <Christian.Limpach@cl.cam.ac.uk>

Simplify code by acking watch as soon as we read it.
Since watches no longer block anyone, this doesn't change semantics.
Signed-off-by: Rusty Russel <rusty@rustcorp.com.au>
Signed-off-by: Christian Limpach <Christian.Limpach@cl.cam.ac.uk>

Simplify code by making in and out pointers internal to xenbus_xs.c
Signed-off-by: Rusty Russel <rusty@rustcorp.com.au>
Signed-off-by: Christian Limpach <Christian.Limpach@cl.cam.ac.uk>

Nicer platform timer string (include clock rate in mhz).
Signed-off-by: Keir Fraser <keir@xensource.com>

Fix irq.c warning, from aq.

Fix gnttab bug in blkfront.
Signed-off-by: Keir Fraser <keir@xensource.com>

Slightly better time debugging support in Xen.

Get rid of internet_copy.jpg once more.
Signed-off-by: Christian Limpach <Christian.Limpach@cl.cam.ac.uk>

Don't ignore exceptions here - the possible RuntimeError is handled already.
Signed-off-by: Christian Limpach <Christian.Limpach@cl.cam.ac.uk>

Introduce dom0 to the store.
Signed-off-by: Christian Limpach <Christian.Limpach@cl.cam.ac.uk>

Handle introduce_domain failing when the domain is already introduced.
Signed-off-by: Christian Limpach <Christian.Limpach@cl.cam.ac.uk>

Always pass around the store machine frame number instead of the linear address.
Also cleanup IOCTL_PRIVCMD_INITDOMAIN_STORE.
Signed-off-by: Rusty Russel <rusty@rustcorp.com.au>
Signed-off-by: Christian Limpach <Christian.Limpach@cl.cam.ac.uk>

Add xc_init_store python binding.
Signed-off-by: Christian Limpach <Christian.Limpach@cl.cam.ac.uk>

Fix read of integers from database on event channel restore.
Signed-off-by: Christian Limpach <Christian.Limpach@cl.cam.ac.uk>

Make XENSTORED_DEBUG create a xenstored trace logfile.
Signed-off-by: Christian Limpach <Christian.Limpach@cl.cam.ac.uk>

Move SIF_BLK_BE_DOMAIN and SIF_NET_BE_DOMAIN definitions to where they are used.
Signed-off-by: Christian Limpach <Christian.Limpach@cl.cam.ac.uk>

merge?

Don't auto-add domains we don't know about.
Signed-off-by: Christian Limpach <Christian.Limpach@cl.cam.ac.uk>

Add IBM Cyclone support to Xen.
Signed-off-by: Keir Fraser <keir@xensource.com>

Add HPET support to Xen. It is quicker to access and more
precise than the PIT.
Signed-off-by: Keir Fraser <keir@xensource.com>

On opt_nosmp, also force num_cores to 1. Do this in setup.c
instead of cpu/common.c. This is where opt_nosmp is defined,
and it reduces diff of cpu/ subdir against native Linux.
Signed-off-by: Keir Fraser <keir@xensource.com>

Kill a bad assertion.

Signed-off-by: Steven Smith, sos22@cam.ac.uk

Merge.

Signed-off-by: Steven Smith, sos22@cam.ac.uk

Make sure that opt_nosmp also disables hyperthreading.  This stops us
from trying to create domains on non-existent threads, which would
lead to a rather nasty crash.

Signed-off-by: Steven Smith, sos22@cam.ac.uk

Rename file with space in name.
Signed-off-by: Christian Limpach <Christian.Limpach@cl.cam.ac.uk>
--HG--
rename : tools/sv/images/internet copy.jpg => tools/sv/images/internet_copy.jpg

Fix memory reservation in XenLinux.
Signed-off-by: Keir Fraser <keir@xensource.com>

Frob the Linux-2.6 configs to enable PAE (HIGHMEM_64G) if XEN_TARGET_X86_PAE=y

Signed-off-by: ian@xensource.com

merge?

Clean up xenbus code not to use priorities.
Signed-off-by: Rusty Russel <rusty@rustcorp.com.au>
Signed-off-by: Christian Limpach <Christian.Limpach@cl.cam.ac.uk>

Fix case where watch callback unregisters itself: do not try to ack it
Signed-off-by: Rusty Russel <rusty@rustcorp.com.au>
Signed-off-by: Christian Limpach <Christian.Limpach@cl.cam.ac.uk>

Implement xenbus_dev_error() and xenbus_dev_ok() functions
for better error reporting using the store.
Signed-off-by: Rusty Russel <rusty@rustcorp.com.au>
Signed-off-by: Christian Limpach <Christian.Limpach@cl.cam.ac.uk>

Scrub initial xenstore page, free xendev structure.
Signed-off-by: Rusty Russel <rusty@rustcorp.com.au>
Signed-off-by: Christian Limpach <Christian.Limpach@cl.cam.ac.uk>

Fix locking: probe can be called from several places, so ensure
we lock for it.
Signed-off-by: Rusty Russel <rusty@rustcorp.com.au>
Signed-off-by: Christian Limpach <Christian.Limpach@cl.cam.ac.uk>

Fix bus watch code, and clean up a little.
Signed-off-by: Rusty Russel <rusty@rustcorp.com.au>
Signed-off-by: Christian Limpach <Christian.Limpach@cl.cam.ac.uk>

Note about when device_find is fixed
Signed-off-by: Rusty Russel <rusty@rustcorp.com.au>
Signed-off-by: Christian Limpach <Christian.Limpach@cl.cam.ac.uk>

Modify to assume transactions
Signed-off-by: Rusty Russel <rusty@rustcorp.com.au>
Signed-off-by: Christian Limpach <Christian.Limpach@cl.cam.ac.uk>

Do not use device_find: crashes for some reason
Signed-off-by: Rusty Russel <rusty@rustcorp.com.au>
Signed-off-by: Christian Limpach <Christian.Limpach@cl.cam.ac.uk>

Fix missing argument rename in xenbus_exists.
Signed-off-by: Christian Limpach <Christian.Limpach@cl.cam.ac.uk>

Grab lock around registering watch.
Signed-off-by: Rusty Russel <rusty@rustcorp.com.au>
Signed-off-by: Christian Limpach <Christian.Limpach@cl.cam.ac.uk>

Add watch for dynamic add/remove of devices.
Signed-off-by: Rusty Russel <rusty@rustcorp.com.au>
Signed-off-by: Christian Limpach <Christian.Limpach@cl.cam.ac.uk>

Fix return from xenbus_scanf: returns number scanned, not 0!
Fix xenbus_write args in xenbus_printf
Signed-off-by: Rusty Russel <rusty@rustcorp.com.au>
Signed-off-by: Christian Limpach <Christian.Limpach@cl.cam.ac.uk>

Major xenbus cleanup
1) Make xenbus_* functions first-class citizens, evict xs_ prefix.
2) Add xenbus_scanf and xenbus_printf instead of multiple functions
3) Remove unused code from xenbus.c
4) Use standard debugging macros.
Signed-off-by: Rusty Russel <rusty@rustcorp.com.au>
Signed-off-by: Christian Limpach <Christian.Limpach@cl.cam.ac.uk>

Manual merge.

Attached patch removes the empty domain if
xc.memory_increase_reservation fails.

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>

Update python bindings - xs_watch doesn't support a priority anymore.
Signed-off-by: Christian Limpach <Christian.Limpach@cl.cam.ac.uk>

Don't enter sv subdirectory until its Makefile supports targets
like `clean' or actually does anything useful.
Signed-off-by: Christian Limpach <Christian.Limpach@cl.cam.ac.uk>

Remove ill-conceived concept of watches blocking reply on
connection which did write/mkdir/rm/setperm etc.
This causes deadlocks in real life, and I can't see a sane way
of avoiding them: it is reasonable for someone to ignore watch
notifications while doing other actions, and that means that
we can do other writes.  These writes can block pending other
watchers; if one of these is the process blocked awaiting our
ack, we deadlock.
Signed-off-by: Rusty Russel <rusty@rustcorp.com.au>
Signed-off-by: Christian Limpach <Christian.Limpach@cl.cam.ac.uk>

Fix bug where transaction fires multiple events.
Add general trace() call to help future debugging.
Signed-off-by: Rusty Russel <rusty@rustcorp.com.au>
Signed-off-by: Christian Limpach <Christian.Limpach@cl.cam.ac.uk>

Fix bug where watch messages doesn't go out.  Also change xs_test
to more closely represent xenbus behaviour so we can see the bug.
Signed-off-by: Rusty Russel <rusty@rustcorp.com.au>
Signed-off-by: Christian Limpach <Christian.Limpach@cl.cam.ac.uk>

Allow test.sh to take arg: name of test to start with
Signed-off-by: Rusty Russel <rusty@rustcorp.com.au>
Signed-off-by: Christian Limpach <Christian.Limpach@cl.cam.ac.uk>

Make testing more reliable: wait for event after async so we know
child has done command
Signed-off-by: Rusty Russel <rusty@rustcorp.com.au>
Signed-off-by: Christian Limpach <Christian.Limpach@cl.cam.ac.uk>

Change watches: operations block until everyone has acked.
Watch events are no longer sent to self
Watches no longer take a priority
async and asyncwait commands for xs_test, now we need to continue
despite blocking ops.
Print test name at end of verbose run on failure.
Use --trace-file arg to xenstored when testing
Signed-off-by: Rusty Russel <rusty@rustcorp.com.au>
Signed-off-by: Christian Limpach <Christian.Limpach@cl.cam.ac.uk>

This patch prevents you from getting a screen full of stack trace when
trying to run commands like xm list as a normal user, and instead provides a
helpful error message.

Signed-off-by: Sean Dague <sean@dague.net>

Manual merge.

Change from bool indicating blocked to an enum: when watches go
synchronous this makes it easier (because then we have two reasons
to block)
Instead of using return value, use explicit state member inside
struct connection.
Signed-off-by: Rusty Russel <rusty@rustcorp.com.au>
Signed-off-by: Christian Limpach <Christian.Limpach@cl.cam.ac.uk>

Test and fix acknowedge_watch from returning EINVAL.
Also ensure that daemon re-xmits event if they ack wrong thing
(otherwise confused clients get stuck, as we will send no more
data while awaiting ack).
Signed-off-by: Rusty Russel <rusty@rustcorp.com.au>
Signed-off-by: Christian Limpach <Christian.Limpach@cl.cam.ac.uk>

Fix testsuite to ignore tool/ dir.
Signed-off-by: Rusty Russel <rusty@rustcorp.com.au>
Signed-off-by: Christian Limpach <Christian.Limpach@cl.cam.ac.uk>

Start of code to persistent store connections when xenstored restarts
Signed-off-by: Rusty Russel <rusty@rustcorp.com.au>
Signed-off-by: Christian Limpach <Christian.Limpach@cl.cam.ac.uk>

Add XenSV back into the repository.
Now uses Python Server Pages, not twisted.

# HG changeset patch
# User Rusty Russell <rusty@rustcorp.com.au>
# Node ID a92163adedcfcff0d05c965d09da747f3c8aa13e
# Parent  63ab20781afa311300f3a8e832744292014ea7f6

Remove ill-conceived concept of watches blocking reply on connection which did write/mkdir/rm/setperm etc.
This causes deadlocks in real life, and I can't see a sane way of avoiding them: it is reasonable for someone to ignore watch notifications while doing other actions, and that means that we can do other writes.  These writes can block pending other watchers; if one of these is the process blocked awaiting our ack, we deadlock.

diff -r 63ab20781afa -r a92163adedcf tools/xenstore/xenstored_core.c

Fix restart/poweroff properly. From aq.

- allows to optionally boot the system with a policy already being
  active at startup; this works by adding a module line into the grub
  configuration file and placing the binary policy generated by the
  policy tool into the boot directory; This assumes that a maximum of
  one module line is used for the initrd in the grub configuration
  file - Question: do users pass more than one module to the kernel?
- enables the policy hypervisor call on x86/64
- some function prototypes moved to include files
- moves the version number in the java tool up to the current
  version (a better way of doing this will be submitted soon)

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

Improve guest time keeping

Even though we accounted for lost ticks, the accounting was not precise.
Specifically, we didn't account for the delay in calling the ac_timer
handler.

Signed-off-by: Eddie Dong <eddie.dong@intel.com>
Signed-off-by: Arun Sharma <arun.sharma@intel.com>

Really enable gdbserver for real mode code.

Missed out one instance where we need to check if we're running on
1:1 page tables with guest paging disabled.

Signed-off-by: Arun Sharma <arun.sharma@intel.com>

Use hg root instead of bk root.

Signed-off-by: Arun Sharma <arun.sharma@intel.com>

Restore command line parsing code from qemu-0.6.1

This enables cdrom ejection (both file based and physical i.e. /dev/cdrom)

Signed-off-by: Edwin Zhai <edwin.zhai@intel.com>
Signed-off-by: Arun Sharma <arun.sharma@intel.com>

Allow multiple disk images per guest.

Signed-off-by: Yunfeng Zhao <yunfeng.zhao@intel.com>
Signed-off-by: Arun Sharma <arun.sharma@intel.com>

Fix the path to qemu-dm

Implement the I/O bitmap vm execution control.

With this patch, we should not bee seeing any vmexits for debug port
accesses.

Signed-off-by: Edwin Zhai <edwin.zhai@intel.com>
Signed-off-by: Arun Sharma <arun.sharma@intel.com>

Don't leave behind zombie device model processes

Signed-off-by: Edwin Zhai <edwin.zhai@intel.com>
Signed-off-by: Arun Sharma <arun.sharma@intel.com>

Xen full virtualization does not handle unaligned IO with page crossing.
Disable 32-bit PIO as a workaround.

Signed-off-by: Asit Mallick <asit.k.mallick@intel.com>
Signed-off-by: Arun Sharma <arun.sharma@intel.com>

Translate some control characters in the qemu monitor.

This removes odd control characters displayed in the qemu monitor with vnc

Signed-off-by: Edwin Zhain <edwin.zhai@intel.com>
Signed-off-by: Arun Sharma <arun.sharma@intel.com>

Remove extra definition of DBG in pci/irq.c in XenLinux.

Fix cross-compile builds by using NM macro instead of nm
binary directly.

XenLinux restart/poweroff calls 'reboot' or 'poweroff'
as appropriate.
Signed-off-by: Keir Fraser <keir@xensource.com>

split deallocation from net_tx_action

Signed-off-by: Vincent Hanquez <vincent@xensource.com>

add grant table capabilities to netback and netfront.

Signed-off-by: Vincent Hanquez <vincent@xensource.com>

regenerate smp-alt.patch for 2.6.12

Signed-off-by: Vincent Hanquez <vincent@xensource.com>

Local merge
Stephan.Diestelhorst@{cl.cam.ac.uk, inf.tu-dresden.de}

Port kallsyms to Xen, as 'symbols'.
Signed-off-by: Keir Fraser <keir@xensource.com>

Fixed extratime scheduling bug, which caused a prioritised dom0 to overtake the whole cpu.
Signed-off by: Stephan.Diestelhorst@{cl.cam.ac.uk, inf.tu-dresden.de}

In 2.6.12-land, do_debug and do_int3 return void.  Make sure we don't try
to use their return values anywhere.

Signed-off-by: Steven Smith, sos22@cam.ac.uk.

Here is a patch to enable Xen to run on a Unisys ES7000 x86_64 system.
Signed-off-by: Aravindh Puthiyaparambil <aravindh.puthiyaparambil@unisys.com>

Fix problem of can not create two or more vmx guest.

The original gdb server patch will cause the new vmx guest break the=20
old one. This patch make the arch_set_guest_info modify the correct
vmcs and also skip modifying during  creating.

Signed-off-by: Xiaofeng Ling <xiaofeng.ling@intel.com>^
Signed-off-by: Arun Sharma <arun.sharma@intel.com>

Save per cpu IDT information into the VMCS host area.

Without this, we may be saving the IDT info from the wrong cpu into the
vmcs.
This makes domU work in the presence of VMX domains on SMP/HT enabled
machines.

Signed-off-by: Chengyuan Li <chengyuan.li@intel.com>
Signed-off-by: Xiaofeng Ling <xiaofeng.ling@intel.com>=20
Signed-off-by: Arun Sharma <arun.sharma@intel.com>

Propagate guest MSR writes to machine MSRs immediately

Right now, we have an exposure between the time the MSR is written
and used by an instruction such as syscall. If there is a context
switch and we do vmx_do_restore_msrs(), everything goes fine. But
if we don't, then we execute the syscall with the wrong MSR.

Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>
Signed-off-by: Arun Sharma <arun.sharma@intel.com>

Fix bug.

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

No need to define io_remap_pfn_range in linux/mm.h.