Fix build dependency for the XEN tpm driver.

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

Better Xen backtraces in debug builds (follow the
stack frame pointer).

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

Fix network setup through hotplug on SUSE.
Move the hotplug script from /etc/hotplug.d/xen-backend/backend.hotplug
to /etc/hotplug/xen-backend.agent, which seems to be a more common place
for the script.
Signed-off-by: Christian Limpach <Christian.Limpach@cl.cam.ac.uk>
--HG--
rename : tools/examples/backend.hotplug => tools/examples/xen-backend.agent

Hook up sysrq for xencons.
Having sysrq is regularly handy.  Following in the tradition set by the
various consoles for virtual ppc stuff, the sysrq key is ^O.
Signed-off-by: Jeremy Katz <katzj@redhat.com>
Signed-off-by: Christian Limpach <Christian.Limpach@cl.cam.ac.uk>

Fix closing of /var/log/xend.log fd
Fix the problem where /var/log/xend.log was getting closed and then
/var/log/xend-debug was getting all the spam about the fd being closed
in the logging stuff.

Basically what was happening is that the main thread wasn't sticking
around and during its exit, the atexit handlers of the python logging
stuff got called closing the log fd.

Patch makes it so that we instead wait on the real server threads to
exit before shutting things down.

Signed-off-by: Jeremy Katz <katzj@redhat.com>
Signed-off-by: Christian Limpach <Christian.Limpach@cl.cam.ac.uk>

remove random file
Signed-off-by: Christian Limpach <Christian.Limpach@cl.cam.ac.uk>

merge?

Cleanup domain listing.
Signed-off-by: Christian Limpach <Christian.Limpach@cl.cam.ac.uk>

Fix xm list for when info is requested for individual domains.
Signed-off-by: Christian Limpach <Christian.Limpach@cl.cam.ac.uk>

Avoid code duplication between stringified and
non-stringified asm macros, by stringifying on use
where that is needed.
Signed-off-by: Keir Fraser <keir@xensource.com>

Use entry_get_paddr(l1e) to get the PFN

Otherwise software used bits might get in the way.

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

Tiny build fix for gcc 4.0.1
Signed-off-by: Christopher Clark <christopher.clark@cl.cam.ac.uk>

VTPM is off by default.

Linux 2.6 cleanups.
Signed-off-by: Christian Limpach <Christian.Limpach@cl.cam.ac.uk>

Remove curl checks. Patch from Anthony Liguori.

merge?

Fix vtpm build when doing 'make dist' (particularly when not root).

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

Fix non-SMP build, broken by the previous changeset.
Signed-off-by: Keir Fraser <keir@xensource.com>

Fix DEBUG_PREEMPT builds. irq_disabled() macro must not use
smp_processor_id(). Use the underlying function instead.

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

Disallow domain 0 access to certain I/O port ranges
(Master/Slave PICs, PIT, Speaker Control). Modifying
these can seriously harm Xen's health.

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

extends xm info with xen version and various others information.
exports version hypercall to userspace

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

Wait a little bit for tty to appear.
There is a race condition that occurs after xend creates a domain.
The console client might be running before the console daemon has
noticed the new domain and setup a pty for it.
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Christian Limpach <Christian.Limpach@cl.cam.ac.uk>

merge?

This patch adjusts the plan9 loader to start "physical" ram at
0x80000000 virtual rather than the virtual address of the kernel
image (which is higher).

Tim Newsham

Add back missing part of XenLinux acpi/boot.c.
This fixes bug #76 (IRQ sharing fails under load).
Signed-off-by: Natasha Jarymowycz <natasha@us.ibm.com>

Use MIN instead of MAX to avoid reading more than fits into the buffer.
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Christian Limpach <Christian.Limpach@cl.cam.ac.uk>

merge?

Merge.

merge?

Use watch to detect new domains and avoid polling for dead domains.
Signed-off-by: Christian Limpach <Christian.Limpach@cl.cam.ac.uk>

Raise VIRQ_DOM_EXC when a domain is destroyed from dom0.
Signed-off-by: Christian Limpach <Christian.Limpach@cl.cam.ac.uk>

Remainder of Intel/IBM joint TPM Virtualization implementation for Xen.

Signed-off-by: Vinnie Scarlata <vincent.r.scarlata@intel.com>
Signed-off-by: Joseph Cihula <joseph.cihula@intel.com>
Signed-off-by: Steven Hand <steven@xensource.com>

TPM front-end and back-end implementation, and configuration updates.

Signed-off-by: Stefan Berger <stefanb@us.ibm.com>
Signed-off-by: Kylene Hall <kjhall@us.ibm.com>
Signed-off-by: Mahadevan Gomathisankaran <gmdev@iastate.edu>
Signed-off-by: Steven Hand <steven@xensource.com>

Don't clear console entries.
Signed-off-by: Christian Limpach <Christian.Limpach@cl.cam.ac.uk>

vTPM manager - Intel/IBM joint TPM Virtualization implementation for Xen.
This is a software implementation for people without h/w vTPM support.

Signed-off-by: Vinnie Scarlata <vincent.r.scarlata@intel.com>
Signed-off-by: Joseph Cihula <joseph.cihula@intel.com>
Signed-off-by: Steven Hand <steven@xensource.com>

Provide xend support for setting up TPM front- and back-end interfaces.

Signed-off-by: Steven Hand <steven@xensource.com>
Signed-off-by: Stefan Berger <stefanb@us.ibm.com>

Documentation about how to use the virtual TPM implementation.

Signed-off-by: Steven Hand <steven@xensource.com>
Signed-off-by: Stefan Berger <stefanb@us.ibm.com>

Unify access to mpt using macros.
Also some code cleanup to x86_64 fault.c

Signed-off-by: Xin Li <xin.b.li@intel.com>

Add some more EXPORT_SYMBOLs for Xen-defined stuff.
Based on a patch from Ross Mcilroy.

Some fixes to the performance counters code.
Signed-off-by: Ross McIlroy <mcilrorc@dcs.gla.ac.uk>

When generating an exception frame for injection into a
guest, that frame's base should be aligned on a 16-byte
boundary (as is done by the hardware).

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

Fix x86/64 Xen register and stack dumps so they don't
wrap on an 80-column display.
Signed-off-by: Jan Beulich <jbeulich@novell.com>

Fix x86/64 pagetable initialisation to not waste several
megabytes of memory.

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

merge?

New console transport and update xenconsoled.
Add a new console interface using a seperate shared page and event channel
instead of passing the console input/output over control messages.
Update xenconsoled to use the new console interface.
Make xenconsoled garbage collect dying domains by subscribing to
the domain exception virq.
Signed-off-by: Robert Read <robert@xensource.com>
Signed-off-by: Christian Limpach <Christian.Limpach@cl.cam.ac.uk>

Fix user-space four- and five-argument hypercalls on
x86/64. This fixes domU building on x86/64 (bug #196).
Signed-off-by: Keir Fraser <keir@xensource.com>

Fix memory_op domid parameter in dom0 tools.
Signed-off-by: Keir Fraser <keir@xensource.com>

Fix build failure due to missing unistd.h
Signed-off-by: Michal Ostrowski <mostrows@watson.ibm.com>

Cross-compilation fixes.
Signed-off-by: Michal Ostrowski <mostrows@watson.ibm.com>

Make mbootpack work on big-endian systems.
Signed-off-by: Michal Ostrowski <mostrows@watson.ibm.com>

Replace dom_mem_op hypercall with memory_op hypercall with
better interface. Fix "mem=" parameter on x86/64 boot.

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

This patch export symbols in xenbus that is used by netfront
and blkfront so that vbd and vnif can be made to modules.

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

Add CONFIG_BLK_DEV_UB as unconfigured item to x86/64 dom0
defconfig file. Spotted by Yongkang You at Intel.

Fix save/restore (for SMP guests in particularl);  the blkfront suspend code
was failing to unbind its irq handler correctly which (on SMP) caused the
guest to BUG() on resume when trying to request its callfunc_irq. Plus a
few small cosmetic changes.

Signed-off-by: Steven Hand <steven@xensource.com>
/bin/bash: :x: command not found

Sync Makefile with xen-unstable.hg. This should fix x86-64 bit build.

Merge.

Merge.

Simplify and fix SMP irq and ipi teardown/setup on suspend/resume.
Signed-off-by: Christian Limpach <Christian.Limpach@cl.cam.ac.uk>

Update suspend/resume functions for xenbus.
Signed-off-by: Christian Limpach <Christian.Limpach@cl.cam.ac.uk>

Only hotplug cpus and save/restore vcpu context on SMP builds.
The for_each_cpu_mask macro has a slightly odd behaviour in the
non-CONFIG_SMP case, making the code unexpectedly incorrect.
Signed-off-by: Christian Limpach <Christian.Limpach@cl.cam.ac.uk>

Fix page_is_ram() start-of-day checks, and the watch routine
inside balloon driver.

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

Fix "bogus" check by moving it inside the length check.
Signed-off-by: Ryan Harper <ryanh@us.ibm.com>
Signed-off-by: Christian Limpach <Christian.Limpach@cl.cam.ac.uk>

Allocate a request-id space per vbd in blkfront.
This should fix the assertions people have been seeing
in domU blkfront where we run out of IDs (because they
were being shared by multiple vbds).

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

Minor (partial) build fix for 2.4.

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

Fix nasty tools race between barking xu_autoreap() and xpopen3.wait() -
save/restore now seems more robust from a tools pov at least.

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

blkfront cleanup and retab.
Signed-off-by: Keir Fraser <keir@xensource.com>

Update __vmread()
To make it not to break the stack.

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

CONFIG_X86_PM_TIMER is a no-op option when building Linux
for Xen, but make sure it doesn't break the build.

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

Don't build pcbios.c for xen/i386. No good can come of it.
Signed-off-by: Keir Fraser <keir@xensource.com>

Merge.

Refactor sync_lazy_execstate_cpu() into the more sensible
sync_vcpu_execstate().

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

Clean up and fix hypercall macros in XenLinux: we must assume that
all register parameters are clobbered on return. Furthermore,
multicall arrays are clobbered on return from a multicall (only the
result field can be trusted!).

These restrictions are enforced by debug builds of Xen in the
following ways:
 1. On completion of a multicall, the call array is overwritten
    with garbage before writing in the result fields.
 2. On completion of a hypercall, all parameter registers are
    overwritten with garbage.

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

Remove the unused ia64 patch directory.
Signed-off-by: Keir Fraser <keir@xensource.com>

The patched attached enables x86_64 xenlinux with "late pin, early
unpin", which is already implemented for x86_32. Since we now only pin
the root rather than any of the other levels, the overall performance
became better especially with workloads that require heavy memory
management operations.

On 8-way x86_64 xenlinux (dom0) the kernel build was improved by about
10% (using make -j32). Even a small setup like a UP HT system, I see
about 3% performance gain with kernel build (make -j4).

Lmbench also shows improvements in fork/exec/sh:
Processor, Processes - times in microseconds - smaller is better
--------------------------------------------------------------------
Host    OS  Mhz   null null      open slct sig  sig  fork exec sh =20
                  call  I/O stat clos TCP  inst hndl proc proc proc
--------- ------------- ---- ---- ---- ---- ---- ---- ---- ---- ----=20
Linux 2.6.12- 3786 1.13 1.36 3.93 6.04 10.5 1.43 4.33 536. 1446 3614
Linux 2.6.12- 3786 1.13 1.36 3.91 6.03 10.4 1.44 4.38 346. 1050 2831

Signed-off-by: Jun Nakajima <jun.nakajima@intel.com>

Fix GDT allocation for SMP guests.

Signed-off-by: Jun Nakajima <jun.nakajima@intel.com>

Vnet update.
Fix the tools/vnet makefiles so that vnets will compile
and includes updates to the vnet implementation.
Vnet ids are increased to 128 bits. The vnet module will
insmod whether xen-br0 exists or not.
Signed-off-by: Mike Wray <mike.wray@hp.com>
Signed-off-by: Christian Limpach <Christian.Limpach@cl.cam.ac.uk>

Fix vnets in xm.
The removal of 'xm call' to call a xend interface function directly
made the xend vnet functions inaccessible. This patch adds those functions
to xm and fixes the persistence in XmVnet to use xenstore.
Signed-off-by: Mike Wray <mike.wray@hp.com>
Signed-off-by: Christian Limpach <Christian.Limpach@cl.cam.ac.uk>

The patch removes broken, and very complicated malloc in
favour of much simpler (and working) Xen's allocator
(xmalloc by Rusty).

Signed-off-by: Grzegorz Milos <gm281@cam.ac.uk>

Clean up and fix domain_pause and friends. Synchronous
pause should not only wait for the running flag to clear,
but also for the scheduler lock to be released. Also get
rid of some unused sync_lazy_execstate functions.

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

merge?

Update xentop to use new name for Xen version function.
Signed-off-by: Josh Triplett <josht@us.ibm.com>
Signed-off-by: Christian Limpach <Christian.Limpach@cl.cam.ac.uk>

Changed xentop.c to include version in the summary.
Signed-off-by: Judy Fischbach <jfisch@us.ibm.com>
Signed-off-by: Christian Limpach <Christian.Limpach@cl.cam.ac.uk>

Bugfix: xenstat_collect_networks now returns the correct error code.
Signed-off-by: Josh Triplett <josht@us.ibm.com>
Signed-off-by: Christian Limpach <Christian.Limpach@cl.cam.ac.uk>

Cache the Xen version in the xenstat_handle, since it should never change.
Use a collector and new flag for Xen version information, to avoid the
extra hypercall if the caller does not want the information.
Reference the xenstat_handle in the xenstat_node for ease of access
later, and update collectors accordingly.
Signed-off-by: Josh Triplett <josht@us.ibm.com>
Signed-off-by: Christian Limpach <Christian.Limpach@cl.cam.ac.uk>

Formatting fixes for xenstat and xentop.
Signed-off-by: Josh Triplett <josht@us.ibm.com>
Signed-off-by: Christian Limpach <Christian.Limpach@cl.cam.ac.uk>

Add file missed in c51562192ef6b1d94f6de7aba1daafe8353064a8 changeset.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Christian Limpach <Christian.Limpach@cl.cam.ac.uk>

Merge with -unstable

Fix typo.

Tracing hooks for VMX domains

The low level asm instrumentation is needed to get precise TSC counts.
trace=n should have precisely 0 overhead because of this patch.

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

Merge.

Minor cleanups.
Signed-off-by: Christian Limpach <Christian.Limpach@cl.cam.ac.uk>

Merge.

merge?

Add hotplug script to run vif-bridge up script when a backend vif starts up.
Signed-off-by: Christian Limpach <Christian.Limpach@cl.cam.ac.uk>

Fix MPT mapping for x86/64. Also i386 no longer needs
4MB mapping for PAE, as xenlinux can handle faults when
accessing unmapped sections of the table.

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

merge?

merge?

Memory management fixes. Page tables are created, buddy allocator now
has ability to free memory (as well as allocate it).

Signed-off-by: Grzegorz Milos <gm281@cam.ac.uk>

Cleanup unused code.
Signed-off-by: Christian Limpach <Christian.Limpach@cl.cam.ac.uk>

This patch fixes Bugzilla #169. (It should fix #187 too -- Keir).

The root cause of bug 169 is, machine_to_phys_mapping, starting from
0xffff800000000000, is mapped using 2M pages.  When the system has RAM
no more than 2G, only one 2M page is allocated and only one PDE entry is
created correspondingly, so calling mfn_to_pfn with mfn > 0x80000 will
overflow this 2M page and cause a unable handled kernel paging request.
The mfn > 0x80000 comes from PCI device I/O memory, here from AGP
display card when booting X server.  Jun suggested to use something like
get_user() when accessing machine_to_phys_mapping.

Signed-off-by: Xin Li <xin.b.li@intel.com>