[IA64] reformatting hyperprivop.S for 80-column readability

Minor reformatting to hyperprivop.S to make it readable
on 80-column displays, as requested by Linux coding style.
Minor formatting changes and typo corrections to get the
style more in line with the other .S files.

Signed-off-by: Al Stone <ahs3@fc.hp.com>

[IA64] handle ld.s on guest tr mapped page (VTI)

Windows does an ld.s on a tr mapped page.
Currently xen/ipf uses tc/vtlb to emulate guest TR,
that may cause guest ld.s on tr page to be deferred, it is not correct.
For trapping this ld.s intruction, xen/ipf always set machine dcr.dm=0.

Signed-off-by: Anthony Xu <anthony.xu@intel.com>
[Moved cr.dcr restore to only impact vti -> non-vti switch]
Signed-off-by: Alex Williamson <alex.williamson@hp.com>

[IA64] efibootmgr support

This patch supports the efibootmgr on Domain-0.
This patch adds the following EFI runtime service emulations
for the efibootmgr support.
 - GetVariable
 - GetNextVariableName
 - SetVariable

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

[IA64] resolve VTI address wrap issue

This patch resolves the address wrap issue in vtlb_purge and vhpt_purge

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

[IA64] enable credit schedule on VTI-domain

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

[IA64] fix non-CONFIG_XEN sparse tree build

   This patch fixes some over-zealous code removal with the P==M
cleanup.  Some of the P==M code was shared with the bare metal kernel.
Also cleaned up a couple places we should have used CONFIG_XEN.

From: Juan Quintela <quintela@redhat.com>
Signed-off-by: Alex Williamson <alex.williamson@hp.com>

[IA64] xenasm.S 80-column reformatting

Minor reformatting (and fix a couple of typos) in xenasm.S so that
it is readable in 80-column displays, in accordance with Linux coding
style.

Signed-off-by: Al Stone <ahs3@fc.hp.com>

[IA64] copy_from/to_guest

This patch fixes the copy_from/to_guest problem.
As Akio reported, modularised netback causes dom0's down.

The following process is happened in gnttab_transfer()@
xen/common/grant_table.c:

  gnttab_transfer()
   => steal_page()
     => assign_domain_page_cmpxchg_rel()
       => domain_page_flush()
         => domain_flush_vtlb_all()  // all TLBs are flushed
   ...
   => __copy_to_guest_offset()               // always fail to copy

The embedded netback module has no problem because it uses TR pinned
data.  But modularised one is out of TR. So copy_from/to_guest issue
must be solved in order to modularise drivers.

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

[IA64] reformatting cleanup for xen.lds.S

Minor reformatting changes to make xen.lds.S 80-column usable,
in accordance with Linux coding style.

Signed-off-by: Al Stone <ahs3@fc.hp.com>

[IA64] 80-column reformatting for flushd.S

Minor reformatting so that flushd.S can be used with 80-column
displays, in accordance with Linux coding style.  No instructions
were changed.

Signed-off-by: Al Stone <ahs3@fc.hp.com>

[IA64] cleanup

Cleanup of the week:
Perf counters added.
Use BUILD_BUG_ON instead of #error+macros.
CPL is checked before calling ia64_hypercall().
Reformatting in hypercall.c
multicall now check hypercall number.

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

[IA64] initial cleanup of ivt.S

This patch reflects a patch I recently posted to the linux-ia64
mailing list to do essentially the same thing for ivt.S in upstream
source.

I've reformatted the contents of the Xen version of ivt.S so that
they are now readable on 80-column displays, in accordance with
Linux coding standards.  This is really just a first pass at
cleaning up this code.

In all of this patch, I only changed one line of assembly; there
was a 'mov r31=pr;' in entry 23 (daccess_rights) that I changed
to 'mov r31=pr;;' which is most likely what was meant.  No other
instructions were changed.  Hopefully, I didn't harm any other
white space formatting.

Signed-off-by: Al Stone <ahs3@fc.hp.com>

[IA64] convert stats to perfc, get rid of unsafe hypercall

Convert remaining stat counter to perfc.
Get rid of unsafe hypercall.

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

[IA64] vti bugs fix

Bug fixes:
 - Do not read long-format vhpt as short-format.
 - Avoid infinite loop in vtlb_purge.

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

[IA64] update xmexample.vti

Keep alignment with new QEMU and control panel configuration

Signed-off-by: Yongkang You <yongkang.you@intel.com>

merge with xen-unstable.hg

[IA64] catch up new hypercall HYPERVISR_hvm_op for IPF (libxc)

append xc_set_hvm_param for IPF

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

[IA64] catch up new hypercall HYPERVISR_hvm_op for IPF

append HYPERVISOR_hvm_op for 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

[qemu patches] Update patches for changeset 10998:bd04004865ba.

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

[qemu] Add vncunused option.
If the port used for the requested display number is in use, try
additional ports until a free port is found.

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

[IA64] fix a fetch code bug

Fetch code may fail, if there is no corresponding tlb entry
in THASH-VTLB. This patch adds "retry mechanism" to resolve
this issue.

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

merge

Make ballon and backend drivers fail gracefully if they are unable to initialize
due to missing hypervisor support.

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

Fix BUG_ON on switch_mm if XENFEAT_writable_page_tables is enabled.

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

[qemu patches] Update patches for changeset 10993:dc7b56b8cfb5.

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

[hvm/qemu] Add HVM buffered IO writes framework to accelerate stdvga speed.
With this patch, win2k VMX guest boots fine on xen.

Signed-off-by: Zhu Han <zhu.han@intel.com>
Signed-off-by: Eddie Dong <eddie.dong@intel.com>
Signed-off-by: Xin Li <xin.b.li@intel.com>
Signed-off-by: Christian Limpach <Christian.Limpach@xensource.com>

Build tools/firmware only on x86.
Signed-off-by: Keir Fraser <keir@xensource.com>

[XEN][IA64] IA64 build fixes after recent PER_CPU changes.
Signed-off-by: Alex Williamson <alex.williamson@hp.com>

Fix the unit test to match the new way of allocating VNC ports.

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

Added a couple of unit tests for the sxp parsing.

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

Fix reference to buf in parsing of ocaml escapes.

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

Better diagnosis of the failure when Xend crashes.  Thanks to Hollis Blanchard
for diagnosis.

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

[IA64] Remove scheduler heartbeat

Signed-off-by: Daniel Miles <daniel.t.miles@hp.com>

[IA64] Virtualize dom0 lid

Because dom0 can't write eid/id into iosapics, lid can be virtualized.

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

[IA64] bug fix in ioports_deny_access

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

[IA64] enable ioports_deny_access for dom0

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

[IA64] remove CONFIG_DOMAIN0_CONTIGUOUS and dom0_start

Remove unused build option CONFIG_DOMAIN0_CONTIGUOUS, thereby
making dom0_start obsolete.

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

[XEN] Assorted further PER_CPU- or read_mostly-ifications.
Signed-off-by: Keir Fraser <keir@xensource.com>

[XEN] Implement proper __read_mostly memory arrangemengt for x86.
Signed-off-by: Keir Fraser <keir@xensource.com>

[XEN] Make tracing structures and buffers explicitly PER_CPU.
Signed-off-by: Keir Fraser <keir@xensource.com>

[XEN] Make multicall info explicitly PER_CPU.
Also remove cacheline alignment in a few places. We leave
the common timer and schedule_data structures aligned because
they may be accessed randomly by remoted CPUs: at least we can
contain cacheline bouncing to just the offending structures.
Signed-off-by: Keir Fraser <keir@xensource.com>

[XEN] Make per-cpu pending EOI interrupt info explicitly PER_CPU.
Signed-off-by: Keir Fraser <keir@xensource.com>

[XEN] Make per-cpu mm information explicitly PER_CPU.
Signed-off-by: Keir Fraser <keir@xensource.com>

[XEN] Make per-cpu time information explicitly PER_CPU.
Signed-off-by: Keir Fraser <keir@xensource.com>

[XEN] Make per-cpu schedule data explicitly PER_CPU.
Signed-off-by: Keir Fraser <keir@xensource.com>

[XEN] Place per-cpu timer info in PER_CPU space.
Signed-of-fby: Keir Fraser <keir@xensource.com>

[XEN] Make tlbflush_time a PER_CPU variable.
Signed-off-by: Keir Fraser <keir@xensource.com>

[qemu patches] Refresh patches.

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

[qemu patches] Update patches for changeset 10974:415614d3a1ee.

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

[hvm/qemu] Flip the device model over to using the new Xen event channels
support.

Signed-off-by: Steven Smith <ssmith@xensource.com>

[hvm] Move the mapping of the shared IO page slightly earlier
in the initialisation sequence for HVM guests, so that we can
write vp_eport into the shared after creating the port.

Signed-off-by: Steven Smith <ssmith@xensource.com>

[XENSTAT] Ignore domains that are being created/destroyed during get_info call.

Currently, xenstat_get_node exits with a failure and returns NULL if a
VM is deleted between the time the list of VMs is obtained and the time
it attempts to collect information about the VMs. This patch modifies xenstat
to ignore domains that transition during the call.

Signed-off-by: Simon Graham <Simon.Graham@stratus.com>

[HVM][VMX] Cleanup vmx vmexit handler.

Current code doesn't handle vmexits caused by triple fault, INIT, SIPI,
etc, which are listed in IA32 Architecture System Programming Guide 2,
Appendix I VMX Basic Exit Reasons, and calls __hvm_bug() when not
handling such cases, actually domain crash should be good enough.

Also various coding style cleanups.

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

[XEND] Daemonise vncviewer when it is spawned from xend.

There are various reasons it should be daemonized, but the particular
problem we hit was that YaST called "xm create" and waited on output on
stdout/stderr; xm then spawned vncviewer (which never closed its
inherited stdout and stderr); xm then would exit, but YaST still had
open file descriptors, and therefore waited forever.  It would be
possible to work around in YaST, but it seemed cleaner to daemonize
vncviewer.

Signed-off-by: Charles Coffing <ccoffing@novell.com>

[PCI] back: New virtual pci backend: slot

This backend use a slot per pci device.  Contrary to vpci two functions from
one slot appear as two slots. This is useful on ia64 because it doesn't scan
functions > 0 if function 0 does not exist.

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

[XEND] Fix fallback and error path for domain destruction by domid,
or of non-existent domain.

I saw the following error message. (A domain of domain name XXX does
not exist.)

# xm list
Name                              ID Mem(MiB) VCPUs State  Time(s)
Domain-0                           0     1019     2 r-----    29.8
# xm destroy XXX
Error: an integer is required

This patch fixes it to print the following error message.

# xm list
Name                              ID Mem(MiB) VCPUs State  Time(s)
Domain-0                           0     1019     2 r-----    35.8
# xm destroy XXX
Error: the domain 'XXX' does not exist.

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

[HVM][VMX] Move hvm interface init_hypercall_page initialization into vmx_setup_hvm_funcs.
Signed-off-by: Xin Li <xin.b.li@intel.com>

[LIBXC] Do not gzclose() after close() on a gzdopen()'ed fd.
Signed-off-by: Steven Rostedt <srostedt@redhat.com>

[HVMLOADER] Only install hvmloader if it is built.
This reverts a broken change in changeset 10948 that broke
the ia64 build.
Signed-off-by: Al Stone <ahs3@fc.hp.com>

Add RH-ish localhost to xend-relocation-hosts-allow in xend-config.sxp
Signed-off-by: Jim Dykman <dykman@us.ibm.com>

[PYGRUB] Flesh out some of pygrub's functionality as was originally
intended. Changes include:
 * Addition of basic command line mode much like grub's so that you can
   boot things without having them specified in the config file
 * Edit/append mode for modifying kernel command lines, etc
 * Fix handling of case where the grub config didn't have a default
   specified

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

[HVM] Fix hvm boot when acpi=1 is specified.
Signed-off-by: Winston Wang <winston.l.wang@intel.com>

[XEN] Remove redundant redeclaration of 'machine_restart'.
Fixes compile warning with gcc 3.4.2.
Signed-off-by: Hollis Blanchard <hollis@us.ibm.com>

[IA64] Add EXPORT_SYMBOL to modularize netfront/netback

Add EXPORT_SYMBOLs to allow netfront and netback to
be used as modules.

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

[qemu patches] Update patches for changesets 10957:08a11694b109 - 10959:06e2a95d3395.

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

[qemu] Update ioemu to qemu 0.8.2.

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

[qemu] Update ioemu to qemu 0.8.2. (.CVS files)

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

[qemu] Update ioemu to qemu 0.8.2.

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

Limit blktap static link to just libaio.

[LINUX] Fix a couple of benign diffs against vanilla spinlock.h.
From: Jan Beulich
Signed-off-by: Keir Fraser <keir@xensource.com>

Provides hooks for perfc print/reset/gather.

These arch-neutral hooks allow architectures to report hardware counters.

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

Change DOM0_PERFCCONTROL: remove array limit.

Descriptors and values are passed by two distinct buffers.

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

[XEN] Allow users to specify mce/nomce boot parameters.
Signed-off-by: Arun Sharma <arun@sharma-home.net>

[XEN] Clean up shutdown handling and ignore opt_noreboot if dom0
shuts down cleanly. The option is intended only to retain information
on the local console in case of a crash.

Based on a patch from Muli Ben-Yehuda <muli@il.ibm.com>

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

[xend] Fix reboot for hvm domains with cdrom devices.
The device-type was not added to the device details which caused
cdrom devices to appear as harddisks after a reboot.

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

[XEN] Add Xen-attached event channels, which will be used
by HVM for the ioreq_packet port.
Signed-off-by: Keir Fraser <keir@xensource.com>

[HVMLOADER] HVM loader initialises hypercall shim and uses
it to interrogate Xen version information. Also add support
for HVM hypercall execution on 64-bit host.

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

[IA64] Remove P==M support

   Remove the old P==M dom0 memory model support.  It's likely
broken by now anyway.

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

[IA64] SMP Windows is up on VTI domain

This patch makes SMP Windows boot,
Rewrite global purge to support multiple page size.

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

[NET] front: Check for received packets in network_open0

Because the backend brings up the interface long before the frontend
has booted up, it is possible that by the time we get here we already
have packets queued up for processing.

If we don't process them here, we may delay them more than what is
necessary.  Worse yet, it is possible to miss the notification
interrupt from the backend in such a way that we never get another
one until we bring the interface down and up.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

[IA64] convert more privop_stat to perfc

Convert most privop stats to perfc.

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

[IA64] unprotected perfc_defn.h

Do not protected against multiple include.

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

[qemu patches] Update patches for changeset 10945:baa6d08e62a0.

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

[qemu] Add missing semicolon.

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

[qemu patches] Update patches for changeset 10943:1de1bb6a51c5.

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

[qemu] Update acpi timer to not use a qemu timer.
Compute the acpi timer's value when it is accessed instead of using
a qemu timer to keep it uptodate.

From: Wang, Winston L <winston.l.wang@intel.com>
Signed-off-by: Christian Limpach <Christian.Limpach@xensource.com>

[hvm firmware] Update hvm acpi dsdt table.
1)Code style clean up
2)Mininor fix for pci bus 0, dev 4 apic IRQ number
3)Add support for HCT "unreported IO and Memory" test by reporting low
640 MB mem as motherboard resource

Signed-off-by: Winston Wang <winston.l.wang@intel.com>

[qemu patches] Refresh patches.

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

[qemu patches] Update patches for changeset 10939:5980fb28b050.

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

[qemu] Free page_array when it's no longer used.
Seems no special reason for keeping page_array, free it
to avoid memroy leak in Qemu.

Signed-off-by : Zhang xiantao<xiantao.zhang@intel.com>

[qemu patches] Refresh patches.

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

[qemu patches] Update patches for changeset 10936:a0b3cf802d99.

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

[qemu] Fix qemu memory access beyond 3G @VTi side.

Signed-off-by: Zhang xiantao <xiantao.zhang@intel.com>

[qemu patches] Refresh patches.

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

[qemu patches] Update patches for changeset 10933:386990d004b8.

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

[qemu] Add switch to control whether acpi bridge is enabled.

Signed-off-by: Winston Wang <winston.l.wang@intel.com>

[qemu patches] Update patches for changeset 10931:3ea0a6847198.

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

[qemu] Make sure disk writes really made it to disk before we report I/O
completion to the guest domain.  The DMA_MULTI_THREAD functionality
from the qemu-dm IDE emulation should make the performance overhead
of synchronous writes bearable, or at least comparable to native
hardware.

Signed-off-by: Rik van Riel <riel@redhat.com>

[qemu patches] Update patches for changeset 10929:4dd640c6ce57.

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