[POWERPC][XEN] Track the Hard CPUID as configured by the FW

This patch correctly implements and supports hard_smp_processor_id().

Signed-off-by: Jimi Xenidis <jimix@watson.ibm.com>
Signed-off-by: Hollis Blanchard <hollisb@us.ibm.com>

[POWERPC][XEN] Fix definition of SCOMC register
Fix some typos aroung machine check too.

Signed-off-by: Jimi Xenidis <jimix@watson.ibm.com>
Signed-off-by: Hollis Blanchard <hollisb@us.ibm.com>

[POWERPC][XEN] Add newlines on multiline output and dump SLB on SLB errors

Signed-off-by: Jimi Xenidis <jimix@watson.ibm.com>
Signed-off-by: Hollis Blanchard <hollisb@us.ibm.com>

[POWERPC][XEN] Sync console around program exceptions

Signed-off-by: Jimi Xenidis <jimix@watson.ibm.com>
Signed-off-by: Hollis Blanchard <hollisb@us.ibm.com>

[POWERPC][XEN] Fix infinite loop caused by hdec storm

This was the cause of the periodic hang on secondary processors that has
been holding back the submission of the SMP patch.

Signed-off-by: Amos Waterland <apw@us.ibm.com>
Signed-off-by: Hollis Blanchard <hollisb@us.ibm.com>

[POWERPC][XEN] Clean up init_frame_table()

figure out its size correctly and remove unused global

Signed-off-by: Jimi Xenidis <jimix@watson.ibm.com>
Signed-off-by: Hollis Blanchard <hollisb@us.ibm.com>

[XEN][POWERPC] Whitespace.
Signed-off-by: Hollis Blanchard <hollisb@us.ibm.com>

[XEN][POWERPC] Fix build break.
Signed-off-by: Hollis Blanchard <hollisb@us.ibm.com>

[POWERPC][XEN] add ofd_strstr() that checks all strings from an OF property

Some OF properties can have a list of '\0' terminated strings, we
frequently need to strstr against all of them.

Signed-off-by: Jimi Xenidis <jimix@watson.ibm.com>
Signed-off-by: Hollis Blanchard <hollisb@us.ibm.com>

[POWERPC][XEN] break out the ppc970.c functionality

getting way to crowded in there.

Signed-off-by: Jimi Xenidis <jimix@watson.ibm.com>
Signed-off-by: Hollis Blanchard <hollisb@us.ibm.com>

[POWERPC][XEN] Better explane the larx/stcx issue with interrupts

Signed-off-by: Jimi Xenidis <jimix@watson.ibm.com>
Signed-off-by: Hollis Blanchard <hollisb@us.ibm.com>

[POWERPC][XEN] Safety with foreign get_page() calls and RMA

The following patch deals with get_page() possibly failing for H_ENTER
on a foreign page and returning the correct error.  We also tag and
checke that a put_page() for RMA pages will panic (for now) if the
domain is _not_ dying.

Signed-off-by: Jimi Xenidis <jimix@watson.ibm.com>
Signed-off-by: Hollis Blanchard <hollisb@us.ibm.com>

[POWERPC][XEN] Inline clear_page() and use DCBZ to optimize

Signed-off-by: Jimi Xenidis <jimix@watson.ibm.com>
Signed-off-by: Hollis Blanchard <hollisb@us.ibm.com>

[POWERPC][XEN] Define all cache information globaly

Rather than use the config.h macro

Signed-off-by: Jimi Xenidis <jimix@watson.ibm.com>
Signed-off-by: Hollis Blanchard <hollisb@us.ibm.com>

[POWERPC][XEN] Track pages correctly

The following patch tracks and frees pages correctly.  It solves the problem where a foreign mapping would zombie a domain because the refcnts remained.
This involved:
  - implement relinquish_memory() for PowerPC
  - remove free_rma() since all pages get "relinquished" now.
  - foreign pages are get and put correctly

Signed-off-by: Jimi Xenidis <jimix@watson.ibm.com>
Signed-off-by: Hollis Blanchard <hollisb@us.ibm.com>

[XEN][POWERPC] Split dom0_ops.c into domctl.c and sysctl.c.
Signed-off-by: Hollis Blanchard <hollisb@us.ibm.com>

[POWERPC][XEN] Handle foreign page mappings correctly

The following patch performs the following:
  - add free_rma() to go with allocate_rma()
  - allocate_rma() returns -EINVAL if an RMA is already allocated
  - PFN_TYPE_REMOTE is now PFN_TYPE_FOREIGN
  - better checking of page_info in pfn2mfn()
  - Stop using RPN and LPN and use PFN and MFN respectively
  - Increase/decrease foreign domain refcount when another domain
    maps/unmaps it

Signed-off-by: Jimi Xenidis <jimix@watson.ibm.com>
Signed-off-by: Hollis Blanchard <hollisb@us.ibm.com>

[POWERPC][XEN] make sure put_domain() is called in case of allocate_rma() failuer

Signed-off-by: Jimi Xenidis <jimix@watson.ibm.com>
Signed-off-by: Hollis Blanchard <hollisb@us.ibm.com>

[POWERPC][XEN] if crash_debug=n then at least dump a backtrace.

Signed-off-by: Jimi Xenidis <jimix@watson.ibm.com>
Signed-off-by: Hollis Blanchard <hollisb@us.ibm.com>

[POWERPC][XEN] Detect bad spurious interrupt condition and panic instead of hang

When handing off the MPIC from Xen to Dom0, which is the current yet
not permamnet design, the MPIC can cause the processor to assert an
external interrupt when none is available.  Rather then simply hang in
this condition we now panic so the user can see that there is indeed a
problem and identify it as this one.

This condition seems to be related to temperature and the probablity
of it occuring decreases if the machine is allowed to stay idle (not
in the Xen panic loop) for a minute or two.

Signed-off-by: Jimi Xenidis <jimix@watson.ibm.com>
Signed-off-by: Hollis Blanchard <hollisb@us.ibm.com>

[XEN][POWERPC] fix timebase race in SMP init

cpuid was being set twice in cpu_online_map, and the first one was causing a
race in the timebase synchronization code.

Signed-off-by: Amos Waterland <apw@us.ibm.com>
Signed-off-by: Hollis Blanchard <hollisb@us.ibm.com>

[XEN][POWERPC] Fix allocation error for xencomm "mini" descriptors.

Previous code worked correctly only if the allocated structure fit in the same
page as the base address. If the structure did not fit, the computation for the
allocation was incorrect. Noticed by Kiyokuni KAWACHIYA <KAWATIYA@jp.ibm.com>.

Signed-off-by: Maria Butrico <butrico@watson.ibm.com>
Signed-off-by: Hollis Blanchard <hollisb@us.ibm.com>

[XEN][POWERPC] Fix machine check build break.
Building exceptions.c with CRASH_DEBUG=y produces a build break, because
gcc complains about the unused variable.

Signed-off-by: Amos Waterland <apw@us.ibm.com>
Signed-off-by: Hollis Blanchard <hollisb@us.ibm.com>

[LIBXC][POWERPC] Add missing xc_memory.c
Signed-off-by: Hollis Blanchard <hollisb@us.ibm.com>

[LIBXC][POWERPC] Update to latest flatdevtree snapshot.

Signed-off-by: Hollis Blanchard <hollisb@us.ibm.com>

[POWERPC][XEN] Track HID4[RM_CI] state for machine check

This patch creates a PIR indexed character array so we can note when a
processor is in RM_CI mode.  Machine checks can happen here and we
need to at least report it (and maybe one day) recover from it. Also
some fun with the SCOM.

Signed-off-by: Jimi Xenidis <jimix@watson.ibm.com>
Signed-off-by: Hollis Blanchard <hollisb@us.ibm.com>

[POWERPC][XEN] Include io.h so we can match the globals defined here.

Signed-off-by: Jimi Xenidis <jimix@watson.ibm.com>
Signed-off-by: Hollis Blanchard <hollisb@us.ibm.com>

[POWERPC][XEN] Synchronize Timebase on all CPUs

This patch add the necessary support to use
  arch/powerpc/kernel/smp-tbsync.c
from Linux.
Original copyright and author are:
  Copyright (C) 2003 Samuel Rydh (samuel@ibrium.se)

Signed-off-by: Jimi Xenidis <jimix@watson.ibm.com>
Signed-off-by: Hollis Blanchard <hollisb@us.ibm.com>

[POWERPC][XEN] Clear SLB entries on boot and other cleanups

This patch clears and SLB entries that might have been left behind by
Firmware and also cleans up the Save and Restore of the segments.

Signed-off-by: Jimi Xenidis <jimix@watson.ibm.com>
Signed-off-by: Hollis Blanchard <hollisb@us.ibm.com>

[POWERPC][XEN] Machine Check Processing

This patch allows allows for a processor to report on the cause of the
machine check and possible even recover from it.

Signed-off-by: Jimi Xenidis <jimix@watson.ibm.com>
Signed-off-by: Hollis Blanchard <hollisb@us.ibm.com>

[POWERPC][XEN] More Robust Memory Checking

This patch allows the platform to define the "IO Hole" of
addressibility and checks that even Dom0 does not try to Map "Remote"
memory that is not there.  Also replaces some panic calls with WARN();
and returns failure.

Signed-off-by: Jimi Xenidis <jimix@watson.ibm.com>
Signed-off-by: Hollis Blanchard <hollisb@us.ibm.com>

[POWERPC][XEN] move setting of MSR[RI] till after SRR0/1

This also frees up space so we can properly/safely blow away larx/stcx
reservations.

Signed-off-by: Jimi Xenidis <jimix@watson.ibm.com>
Signed-off-by: Hollis Blanchard <hollisb@us.ibm.com>

[POWERPC][XEN] Make many of the timbase routine static inline

Signed-off-by: Jimi Xenidis <jimix@watson.ibm.com>
Signed-off-by: Hollis Blanchard <hollisb@us.ibm.com>

[POWERPC][XEN] make sure Dom0.VCPU0 is pinned to the booting CPU

Signed-off-by: Jimi Xenidis <jimix@watson.ibm.com>
Signed-off-by: Hollis Blanchard <hollisb@us.ibm.com>

[POWERPC][XEN] move idle_loop and add a "power save" hook

Signed-off-by: Jimi Xenidis <jimix@watson.ibm.com>
Signed-off-by: Hollis Blanchard <hollisb@us.ibm.com>

[POWERPC][XEN] remove dead preemption code

Signed-off-by: Jimi Xenidis <jimix@watson.ibm.com>
Signed-off-by: Hollis Blanchard <hollisb@us.ibm.com>

[POWERPC][XEN] Adjust DEC correctly

If DEC would have expired we now restore DEC to 0 so it will fire.
The Domain loses info about how late DEC was from looking at DEC but I
don't think anyone tracks that.

Signed-off-by: Jimi Xenidis <jimix@watson.ibm.com>
Signed-off-by: Hollis Blanchard <hollisb@us.ibm.com>

[POWERPC][XEN] Erratum: Must clear larx/stcx reservation on exception

PowerPC 970 Erratum that an "OS should execute a stcx in
the interrupt handler to clear the reservation."

Signed-off-by: Jimi Xenidis <jimix@watson.ibm.com>
Signed-off-by: Hollis Blanchard <hollisb@us.ibm.com>

[POWERPC][XEN] Make MPIC sharing between Xen and Dom0 optional

Tho right now it is the only option.

Signed-off-by: Jimi Xenidis <jimix@watson.ibm.com>
Signed-off-by: Hollis Blanchard <hollisb@us.ibm.com>

[POWERPC] merge with xen-unstable.hg
Signed-off-by: Hollis Blanchard <hollisb@us.ibm.com>

Merge with xenppc-unstable-merge.hg.

Merge with xen-ia64-unstable.hg

[POWERPC] merge with xen-unstable.hg

[NET] front: move register_netdev() + sysfs attribute registering from create_netdev() into the new open_netdev() function.
open_netdev is called as very last thing in netdev_probe.

This closes at least one initialization race: uninitialized
mac address is visible for a short time in
/sys/class/net/${if}/address

Signed-off-by: Gerd Hoffmann <kraxel@suse.de>

[XEN] Add a start_pfn field in xen_domctl_getmemlist.
This is used by ia64 because it directly reads the P2M table.
Signed-off-by: Tristan Gingold <tristan.gingold@bull.net>

Revert powerpc build break after dom0_ops split.
Signed-off-by: Hollis Blanchard <hollisb@us.ibm.com>

[XEN] Reserve hypercall number for kexec operations.
Signed-off-by: Keir Fraser <keir@xensource.com>

[XEN] physdev: Check for negative irqs in alloc_irq_vector.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

[LINUX][X86_64] P2M map must be allocated on page aligned boundary.
Otherwise save/restore can break.
Signed-off-by: Kazuo Moriwaka <moriwaka@valinux.co.jp>

[TOOLS] Fix gdbserver build.
Signed-off-by: Travis Betak <travis.betak@amd.com>

Fix fix :-)

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

Fix hard tabs.

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

Block IO safety patch for live migration. Xend checks that VBDs are destroyed before unpausing the domain.

Further shadow_mem_control fixes -- we need to balloon the amount of memory
that we're going to request i.e. the rounded-up value.

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

Shadow memory should be in MiB, not KiB.  It also needs rounding up to be safe.

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

Fix reboot and reconfigure of HVM guests when they are configured with an
empty CD-ROM drive.

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

Added an entry to arch._types for x86_64.

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

Fix typo.

Signed-off-by: <andy@xensource.com>

merge

Small blktap cleanups.

Signed-off-by: Andrew Warfield <andy@xensource.com>

[XEN][POWERPC] catch up with xen-unstable changes
Signed-off-by: Hollis Blanchard <hollisb@us.ibm.com>

[XEND] abstract architecture-specific bits in image.py
- create arch.type (which evaluates to "x86", "ia64" or "powerpc")
- create subclasses for x86 and ia64 HVM loaders
- rework findImageHandlerClass()
Signed-off-by: Hollis Blanchard <hollisb@us.ibm.com>

This patch fixed 'xm reboot' to work as you expected with the wait
option. This patch adds a restart sequence counter to xenstore.
The completion of a VM reboot is detected by observing that
its restart sequence counter changes.

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

Improve xm migrate error message by printing usage instead of "Invalid
arguments".

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

Reduce AIO context allocations in blktap.

Signed-off-by: Andrew Warfield <andy@xensource.com>

[IA64] revert xen-ia64-unstable.hg cset 11301:a19dbbe4cff5

revert arch_domain_destory() for old PV-on-HVM on IPF

Signed-off-by: Tsunehisa Doi <Doi.Tsunehisa@jp.fujitsu.com>
Signed-off-by: Tomonari Horikoshi <t.horikoshi@jp.fujitsu.com>

[IA64] revert xen-ia64-unstable.hg 11271:c232365128cf

Delete functions introduced for old PV-on-HVM on IPF.

Signed-off-by: Tsunehisa Doi <Doi.Tsunehisa@jp.fujitsu.com>
Signed-off-by: Tomonari Horikoshi <t.horikoshi@jp.fujitsu.com>

merge with xen-unstable.hg

[IA64] init the hlt timer on a valid cpu and migrate

Based on a patch from Anthony Xu, v->processor is not initialized
in alloc_vcpu_struct() when we initialize the hlt_timer.  Init the
timer on the first cpu and migrate it in schedule_tail().

Signed-off-by: Alex Williamson <alex.williamson@hp.com>

Fix definition of LINUX_VER so that doesn't pickup LINUX_VER3
from mk.linux-2.6-xen. This makes "make mkpatches" work again.

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

[XEN][POWERPC] cleanup for (;;);

When the port first started, we didn't even have panic() working
properly so we used "for(;;);" loops to stop execution.  Now that output
is buffered these look like hangs, since you usually do not see the
printk() before.

Signed-off-by: Jimi Xenidis <jimix@watson.ibm.com>
Signed-off-by: Hollis Blanchard <hollisb@us.ibm.com>

Merge

[XEN] Off-by one error in range checks translating gfns to mfns
Signed-off-by: Tim Deegan <Tim.Deegan@xensource.com>

merge with xen-unstable.hg

[IA64] Modify sparse headers for PV-on-HVM/IPF

Signed-off-by: Tsunehisa Doi <Doi.Tsunehisa@jp.fujitsu.com>
Signed-off-by: Tomonari Horikoshi <t.horikoshi@jp.fujitsu.com>

[IA64] separate hypercalls, acpi and EFI tables

Put hypercalls, acpi and EFI tables on three separate 4KB pages.
This was a stopper to use 4KB pages.
Comments added and simplifications.

Signed-off-by: Tristan Gingold <tristan.gingold@bull.net>

[qemu patches] Update patches for changeset 11273:a1cff03ac7d7.

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

[qemu] Fix PCI config header space writes and set Subsystem-Vendor ID fields.
Fix failure in Windows HCT's PCI-Compliance-Test by invalidating the
writing to read-only/reserved fields in PCI configuration space header
and giving Subsystem-Vendor-ID field a valid value via copying Vendor-ID
field into it.

Signed-off-by: Dexuan Cui <dexuan.cui@intel.com>

[XEN][POWERPC] do not set d->tot_pages, but check it.
Signed-off-by: Jimi Xenidis <jimix@watson.ibm.com>
Signed-off-by: Hollis Blanchard <hollisb@us.ibm.com>

Fix hypervisor build with performance counters after -unstable
cset 11257:86d26e6ec89b

Signed-off-by: Steve Dobbelstein <steved@us.ibm.com>

Fix shadow mode 32/PAE linux writable heuristic and add 64-bit version.

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

Fix PAE-mode HVM guests with the new shadow code.

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

[IA64] fix noreboot option

fix machine_hlt to support noreboot option.

Signed-off-by: Akio Takebe <takebe_akio@jp.fujitsu.com>
[modified to use existing cpu_halt() function in linux-xen files]
Signed-off-by: Alex Williamson <alex.williamson@hp.com>

[IA64] print command line of xen

Signed-off-by: Akio Takebe <takebe_akio@jp.fujitsu.com>

[IA64] fix warnings

Signed-off-by: Tristan Gingold <tristan.gingold@bull.net>

[qemu patches] Update patches for changeset 11268:350a73222a51.

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

[qemu] Add target-i386-dm and hw *.[ch] files to TAGS.

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

[IA64] fix VTi hangs

In some scenarios, xen_timer_interrupt will not set machine itm,
this may make this LP not receive timer interrupt any more.

Signed-off-by: Anthony Xu <anthony.xu@intel.com>

[IA64] Remove warning message in fw_emul.c

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

[IA64] Fix comment of vmx_hypercall.c

Signed-off-by: Tsunehisa Doi <Doi.Tsunehisa@jp.fujitsu.com>
Signed-off-by: Tomonari Horikoshi <t.horikoshi@jp.fujitsu.com>

[IA64] Modify destroy code for PV-on-HVM on IPF

Signed-off-by: Tsunehisa Doi <Doi.Tsunehisa@jp.fujitsu.com>
Signed-off-by: Tomonari Horikoshi <t.horikoshi@jp.fujitsu.com>

[HVM] Don't assume that VMENTER causes a TLB flush, when validating
shadow pagetable updates.
Signed-off-by: Tim Deegan <Tim.Deegan@xensource.com>

[XEN][POWERPC] correct HTAB allocation typo
Signed-off-by: Jimi Xenidis <jimix@watson.ibm.com>
Signed-off-by: Hollis Blanchard <hollisb@us.ibm.com>

Fix Intel copyright notice in a single source file.
Signed-off-by: Keir Fraser <keir@xensource.com>

[XEND] Move all of the various log files created by xen to
be under /var/log/xen instead of under /var/log directly.  This has
the advantage of cleaning things up a little and also can make it
easier to restrict the permissions needed by xend.

Signed-off-by: Jeremy Katz <katzj@redhat.com>

[HVM] [SMBIOS] Duplicate UUID into serial number in SMBIOS tables.

Windows zeroes out the UUID in the SMBIOS tables, but the identifier
is often needed by systems management code.  Duplicating the UUID
as the virtual system's serial number should help.

Signed-off-by: Andrew D. Ball <aball@us.ibm.com>

The following patch fixes a bug where xenconsoled will can SEGV
because it uses FD_ISSET(-1,xxx).  Since the code is written that any
ring/tty handler can set d->tty_fd to -1 it has to be checked
_every_time_.

Signed-off-by: Jimi Xenidis <jimix@watson.ibm.com>

[TOOLS] Remove Gentoo-specific workaround in networking
scripts -- apparently it is not needed (reported by
Tuan Van <lang.thang@gmail.com>). See bugzilla issue #741
for more details.

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

[TOOLS] Clean up routed vifs quietly on domain destruction.

I have experienced that the vif-route script does not work as expected
when deleting a virtual interface (Redhat FC5). Both of the commands
"ifdown" and "ip route" cause an early vif-route script exit and
therefore will cause skipping of the later script commands (such as
cleaning up iptables entries for the default 'antispoof'). The
vif-route
script creates the following syslog error entry:
"/etc/xen/scripts/vif-route failed; error detected."

It appears that both of the problematic commands are actually
redundant
when destroying domains:
1. the interface is already gone (I assume because the domain frontend
is gone already)  --> ifdown does not do anything
2. the route is gone as well since the interface has disappeared -->
ip
route del does not do anything

Executing those redundant commands with "do_without_error" ensures
that
the script completes and cleans up iptables rules. The attached
RFC-patch only masks those commands when bringing down an interface,
so
that domain creation continues to fail in case of vif setup problems
(intended behavior).

Having the iptables cleanup called correctly by vif-route is important
to keep the iptables rule-set clean, otherwise antispoof rules
accumulate with every vif creation.

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

[HVM][SVM] Allow SVM to take advantage of flag_dr_dirty.

Signed-off-by: Travis Betak <travis.betak@amd.com>