Keir Fraser [Thu, 6 May 2010 10:04:39 +0000 (11:04 +0100)]
ocaml: Add xenstored implementation.
Signed-off-by: Vincent Hanquez <vincent.hanquez@eu.citrix.com>
Keir Fraser [Thu, 6 May 2010 10:04:02 +0000 (11:04 +0100)]
ocaml: add logging bindings.
Signed-off-by: Vincent Hanquez <vincent.hanquez@eu.citrix.com>
Keir Fraser [Thu, 6 May 2010 10:03:28 +0000 (11:03 +0100)]
ocaml: add uuid bindings.
Signed-off-by: Vincent Hanquez <vincent.hanquez@eu.citrix.com>
Keir Fraser [Thu, 6 May 2010 10:02:54 +0000 (11:02 +0100)]
ocaml: Add XS bindings.
Signed-off-by: Vincent Hanquez <vincent.hanquez@eu.citrix.com>
Keir Fraser [Thu, 6 May 2010 10:02:18 +0000 (11:02 +0100)]
ocaml: Add XC bindings.
This include a small and simpler reimplementation of libxc.
Signed-off-by: Vincent Hanquez <vincent.hanquez@eu.citrix.com>
Keir Fraser [Thu, 6 May 2010 10:01:31 +0000 (11:01 +0100)]
ocaml: add mmap bindings implementation.
This is quite similar to the mmap functionality available in bigarray
but it's less complicated.
Signed-off-by: Vincent Hanquez <vincent.hanquez@eu.citrix.com>
Keir Fraser [Wed, 5 May 2010 19:23:27 +0000 (20:23 +0100)]
libxl: Ensure install directories are created, and copy
bash-completion script relative to $(DESTDIR).
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
Keir Fraser [Tue, 4 May 2010 21:50:58 +0000 (22:50 +0100)]
sysctl: Move sysctl enumeration into a single block, same as domctl.
Reduces risk of aliased commands.
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
Keir Fraser [Tue, 4 May 2010 21:43:30 +0000 (22:43 +0100)]
scheduler: Add a global parameter adjustment to the switchable scheduler interface
...along with a new sysctl to call it directly. This is in order to
support DornerWorks' new ARINC653 scheduler.
Based on code from Josh Holtrop and Kathy Hadley at DornerWorks, Ltd
Signed-off-by: George Dunlap <george.dunlap@eu.citrix.com>
Signed-off-by: Keir Fraser <keir.fraser@eu.citrix.com>
Keir Fraser [Tue, 4 May 2010 21:42:34 +0000 (22:42 +0100)]
scheduler: const-ify references to 'struct scheduler' where possible.
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
Keir Fraser [Tue, 4 May 2010 21:20:05 +0000 (22:20 +0100)]
cpupool: Control interface should be a sysctl rather than a domctl.
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
Keir Fraser [Tue, 4 May 2010 21:19:35 +0000 (22:19 +0100)]
xen-hptool: Fix after interface change to xc_suspend_evtchn_release().
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
Keir Fraser [Tue, 4 May 2010 12:59:55 +0000 (13:59 +0100)]
mce: Revert 21264:
a8eb546e3cb0
Changes Xen machine-check ABI in incompatible way.
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
Keir Fraser [Tue, 4 May 2010 11:52:48 +0000 (12:52 +0100)]
CPUIDLE: shorten hpet spin_lock holding time
Try to reduce spin_lock overhead for deep C state entry/exit. This
will benefit systems with a lot of cpus which need the hpet broadcast
to wakeup from deep C state.
Signed-off-by: Wei Gang <gang.wei@intel.com>
Keir Fraser [Tue, 4 May 2010 11:51:33 +0000 (12:51 +0100)]
x86: Relocate boot trampoline to avoid BIOS conflicts.
Fix booting through iSCSI protocol with Broadcom network cards.
These boards use the option ROM feature to implement the TCP/IP stack
protocol, and the iSCSI software initiator. The memory address
normally used by the PMM is 0x87000 which conflicts with the memory
allocation for Xen's trampoline routine, currently 0x88000.
Relocating down to 0x7c000 fixes the problem.
Signed-off-by: Fabio Guarneri <fabioguarneri@gmail.com>
Keir Fraser [Tue, 4 May 2010 11:48:28 +0000 (12:48 +0100)]
CPUIDLE: re-implement mwait wakeup process
It MWAITs on a completely new flag field, avoiding the IPI-avoidance
semantics of softirq_pending. It also does wakeup-waiting checks on
timer_deadline_start, that being the field that initiates wakeup via
the MONITORed memory region.
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
Signed-off-by: Wei Gang <gang.wei@intel.com>
Keir Fraser [Tue, 4 May 2010 11:46:56 +0000 (12:46 +0100)]
credit2/cpupools: Fix crash
Signed-off-by: Juergen Gross <juergen.gross@ts.fujitsu.com>
Keir Fraser [Tue, 4 May 2010 11:42:56 +0000 (12:42 +0100)]
linux pvdrv: generalize location of autoconf.h
The location of the file in the build tree changed in recent Linux;
since there can be only one such file, using a wild card instead of
an explicit directory name seems the easiest solution.
Signed-off-by: Jan Beulich <jbeulich@novell.com>
Keir Fraser [Tue, 4 May 2010 11:42:21 +0000 (12:42 +0100)]
x86: fix Dom0 booting time regression
Unfortunately the changes in c/s 21035 caused boot time to go up
significantly on certain large systems. To rectify this without going
back to the old behavior, introduce a new memory allocation flag so
that Dom0 allocations can exhaust non-DMA memory before starting to
consume DMA memory. For the latter, the behavior introduced in
aforementioned c/s gets retained, while for the former we can now even
try larger chunks first.
This builds on the fact that alloc_chunk() gets called with non-
increasing 'max_pages' arguments, end hence it can store locally the
allocation order last used (as larger order allocations can't succeed
during subsequent invocations if they failed once).
Signed-off-by: Jan Beulich <jbeulich@novell.com>
Keir Fraser [Tue, 4 May 2010 11:41:11 +0000 (12:41 +0100)]
x86: add support for domain-initiated global cache flush
Newer Linux' AGP code wants to flush caches on all CPUs under certain
circumstances. Since doing this on all vCPU-s of the domain in
question doesn't yield the intended effect, this needs to be done in
the hypervisor. Add a new MMUEXT operation for this.
Signed-off-by: Jan Beulich <jbeulich@novell.com>
Keir Fraser [Tue, 4 May 2010 11:39:29 +0000 (12:39 +0100)]
x86: fix off-by-one error in the cache flush portion of flush_area_local().
Signed-off-by: Jan Beulich <jbeulich@novell.com>
Keir Fraser [Tue, 4 May 2010 11:38:19 +0000 (12:38 +0100)]
blktap: Fix old QCow tapdisk image handling
When I tried to use QCow image, I found that only each second boot is
successful. As I discovered, this is caused by wrong handling old qcow
tapdisk images. Extended header flag is not stored correctly so the
blktap tries to change endian fo L1 table on each startup.
From: Miroslav Rezanina <mrezanin@redhat.com>
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
Keir Fraser [Tue, 4 May 2010 11:36:30 +0000 (12:36 +0100)]
libxl: make set_memory_target work on domains with no videoram
If a domain has no videoram (say, dom0), then treat the size as 0 and
continue, rather than just failing.
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Keir Fraser [Tue, 4 May 2010 11:33:14 +0000 (12:33 +0100)]
p2m_alloc_table: use p2m_alloc_ptp
Signed-off-by: Christoph Egger <Christoph.Egger@amd.com>
Keir Fraser [Tue, 4 May 2010 11:29:05 +0000 (12:29 +0100)]
vmx, tboot: Check the correct in/outside-SMX flag when init'ing VMX.
Signed-off-by: Shane Wang <shane.wang@intel.com>
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
Keir Fraser [Tue, 4 May 2010 11:23:54 +0000 (12:23 +0100)]
xend: fix bug in option parsing
If you enable legacy tcp xmlrpc in xend's config but omit to enable
ssl then a backtrace is generated when starting xend.
Signed-off-by: Arnd Hannemann <hannemann@nets.rwth-aachen.de>
Keir Fraser [Tue, 4 May 2010 11:22:25 +0000 (12:22 +0100)]
x86: add CMCI software injection interface
This small patch now add CMCI software injection interface.
So that CMCI error could be triggered by software on CPUs
which support CMCI.
Signed-off-by: Yunhong Jiang<yunhong.jiang@intel.com>
Signed-off-by: Liping Ke <liping.ke@intel.com>
Keir Fraser [Tue, 4 May 2010 11:19:50 +0000 (12:19 +0100)]
xl: Make xl usage summary legible
The xl usage summary is illegible with its double spacing and huge gap
between the command and its description. Tighten it up.
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Acked-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Keir Fraser [Tue, 4 May 2010 11:17:19 +0000 (12:17 +0100)]
pv_ops: Switch kernel from xen/master to xen/stable-2.6.31.x
This is functionally identical to xen/master at the moment, but more
meaningful.
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Keir Fraser [Tue, 4 May 2010 11:16:37 +0000 (12:16 +0100)]
Make sure git clone gets the right kernel branch
When cloning kernel repo:
1. make remote called "xen" rather than the default "origin"
2. directly checkout the desired branch, rather than the default
then the desired one
Git 1.5 doesn't support -b on git clone, and seems to do something odd
with the checkout branch argument, so avoid using the newer
commandline options.
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Keir Fraser [Tue, 4 May 2010 11:15:28 +0000 (12:15 +0100)]
mini-os: Revert 21106:
b20f897d6010 "Fix xenbus initialisation"
Jeremy Fitzhardinge (jeremy@goop.org) reports that this fixes HVM+stubdom.
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
Keir Fraser [Tue, 4 May 2010 11:12:28 +0000 (12:12 +0100)]
Change the global suspend event channel lock file to a per-domain lock file
This allows multiple guests to be migrated or protected by Remus
simultaneously.
Signed-off-by: Shriram Rajagopalan <rshriram@cs.ubc.ca>
Acked-by: Brendan Cully <brendan@cs.ubc.ca>
Keir Fraser [Tue, 4 May 2010 11:10:54 +0000 (12:10 +0100)]
xm: catch TypeError if xenconsole is nonexistent
Signed-off-by: Yu Zhiguo <yuzg@cn.fujitsu.com>
Keir Fraser [Tue, 4 May 2010 11:09:48 +0000 (12:09 +0100)]
xl: Add option '-c' for 'xl create'
* -c Connect to the console after the domain is created.
Signed-off-by: Yu Zhiguo <yuzg@cn.fujitsu.com>
Acked-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Keir Fraser [Tue, 4 May 2010 11:03:20 +0000 (12:03 +0100)]
xl: Add support of specifying '[vars]' in 'xl create'.
Signed-off-by: Yu Zhiguo <yuzg@cn.fujitsu.com>
Acked-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Keir Fraser [Tue, 4 May 2010 10:56:26 +0000 (11:56 +0100)]
xl: Add some return-code sanity checks to 'xl info'.
Signed-off-by: Yu Zhiguo <yuzg@cn.fujitsu.com>
Keir Fraser [Tue, 4 May 2010 10:49:46 +0000 (11:49 +0100)]
xl: fix XL_LOG_ERRNOVAL output
Signed-off-by: Yang Hongyang <yanghy@cn.fujitsu.com>
Acked-by: Ian Jackson <ian.jackson@eu.citrix.com>
Keir Fraser [Tue, 4 May 2010 10:48:10 +0000 (11:48 +0100)]
xl: Add basic bash completion for xl command.
Signed-off-by: Yang Hongyang <yanghy@cn.fujitsu.com>
Keir Fraser [Tue, 4 May 2010 10:46:24 +0000 (11:46 +0100)]
xl: Remove unused variable verbose in info function
Signed-off-by: Yang Hongyang <yanghy@cn.fujitsu.com>
Keir Fraser [Tue, 4 May 2010 10:44:19 +0000 (11:44 +0100)]
xl: Add help for 'xl info' command
Signed-off-by: Yang Hongyang <yanghy@cn.fujitsu.com>
Keir Fraser [Tue, 4 May 2010 10:38:24 +0000 (11:38 +0100)]
libxl: Build with -Werror
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
Keir Fraser [Tue, 4 May 2010 10:37:06 +0000 (11:37 +0100)]
xl: Add command description to command table
Signed-off-by: Yang Hongyang <yanghy@cn.fujitsu.com>
Keir Fraser [Tue, 4 May 2010 10:28:06 +0000 (11:28 +0100)]
xl: Use command table to store command name and implementation
Signed-off-by: Yang Hongyang <yanghy@cn.fujitsu.com>
Keir Fraser [Tue, 4 May 2010 10:23:17 +0000 (11:23 +0100)]
xl: Move xl command implementation to a seperate file
Signed-off-by: Yang Hongyang <yanghy@cn.fujitsu.com>
Keir Fraser [Tue, 4 May 2010 10:09:32 +0000 (11:09 +0100)]
xl: Add subcommand "xl sched-credit"
Signed-off-by: Yu Zhiguo <yuzg@cn.fujitsu.com>
Acked-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Keir Fraser [Tue, 4 May 2010 10:07:06 +0000 (11:07 +0100)]
Keir Fraser [Tue, 4 May 2010 08:36:05 +0000 (09:36 +0100)]
Remus: use IFB for net buffer on newer kernels
IMQ does not work with ebtables on 2.6.31, and IFB is not a
third-party patch.
Signed-off-by: Brendan Cully <brendan@cs.ubc.ca>
Keir Fraser [Tue, 4 May 2010 08:35:42 +0000 (09:35 +0100)]
Remus: add file locking and modprobe utility functions
Signed-off-by: Brendan Cully <brendan@cs.ubc.ca>
Keir Fraser [Tue, 4 May 2010 08:35:18 +0000 (09:35 +0100)]
Remus: include device name in vif objects
Signed-off-by: Brendan Cully <brendan@cs.ubc.ca>
Keir Fraser [Tue, 4 May 2010 08:34:50 +0000 (09:34 +0100)]
Remus: fix VM stringification
Signed-off-by: Brendan Cully <brendan@cs.ubc.ca>
Keir Fraser [Tue, 4 May 2010 08:34:23 +0000 (09:34 +0100)]
Remus: move device handling into its own module
Signed-off-by: Brendan Cully <brendan@cs.ubc.ca>
Keir Fraser [Tue, 4 May 2010 08:31:13 +0000 (09:31 +0100)]
Remus: remove obsolete code
Signed-off-by: Brendan Cully <brendan@cs.ubc.ca>
Keir Fraser [Tue, 4 May 2010 08:30:53 +0000 (09:30 +0100)]
Remus: python netlink fixes
Fix deprecation warning in Qdisc class under python 2.6.
Fix rtattr length and padding (rta_len is unaligned).
Null-terminate qdisc name in rtnl messages.
Signed-off-by: Brendan Cully <brendan@cs.ubc.ca>
Keir Fraser [Thu, 29 Apr 2010 18:38:52 +0000 (19:38 +0100)]
libxl: Expose build-time install paths inside libxl.
Use this to construct the fully-qualified path to xenconsole.
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
Keir Fraser [Mon, 26 Apr 2010 11:13:23 +0000 (12:13 +0100)]
x86, shadow: propagate pat caching on the shadow l1
PAT caching was only propagated if has_arch_pdevs(),
causing the hvm_get_mem_pinned_cacheattr() to be ignored
in the non passthrough case.
l1_disallow_mask() needs to be relaxed.
Signed-off-by: Jean Guyader <jean.guyader@citrix.com>
Keir Fraser [Mon, 26 Apr 2010 11:12:12 +0000 (12:12 +0100)]
Support Linux's advanced crashkernel= syntax
Quoting the original Linux patch's description:
"This patch adds a extended crashkernel syntax that makes the value of
reserved system RAM dependent on the system RAM itself:
crashkernel=3D<range1>:<size1>[,<range2>:<size2>,...][@offset]
range=3Dstart-[end]
For example:
crashkernel=3D512M-2G:64M,2G-:128M
The motivation comes from distributors that configure their
crashkernel command line automatically with some configuration tool
(YaST, you know ;)). Of course that tool knows the value of System
RAM, but if the user removes RAM, then the system becomes unbootable
or at least unusable and error handling is very difficult."
For x86, other than Linux we pass the actual amount of RAM rather than
the highest page's address (to cope with sparse physical address
maps).
This still needs to be hooked up for ia64.
Signed-off-by: Jan Beulich <jbeulich@novell.com>
Keir Fraser [Mon, 26 Apr 2010 11:11:30 +0000 (12:11 +0100)]
x86: make pxm_to_node() return sane values when disabling NUMA internally
Otherwise, pass-through code may call memory allocation functions with
invalid node IDs, causing the allocations to fail.
Signed-off-by: Jan Beulich <jbeulich@novell.com>
Keir Fraser [Mon, 26 Apr 2010 05:52:44 +0000 (06:52 +0100)]
xl: Add option '-p' for command 'xl create'
Add option '-p' for command 'xl create', and update
the help info.
* -p Leave the domain paused after it is created.
Signed-off-by: Yu Zhiguo <yuzg@cn.fujitsu.com>
Keir Fraser [Mon, 26 Apr 2010 05:52:13 +0000 (06:52 +0100)]
xl: Fix segment fault of 'xl list'
If libxl_list_domain() returns NULL, segment fault occurs now.
Signed-off-by: Yu Zhiguo <yuzg@cn.fujitsu.com>
Keir Fraser [Mon, 26 Apr 2010 05:50:39 +0000 (06:50 +0100)]
cpupools, xend: Add missing file sxputils.py
Signed-off-by: Juergen Gross <juergen.gross@ts.fujitsu.com>
Keir Fraser [Fri, 23 Apr 2010 14:04:26 +0000 (15:04 +0100)]
cpupools, xend: Add missing file XendCPUPool.py
Signed-off-by: Juergen Gross <juergen.gross@ts.fujitsu.com>
Keir Fraser [Fri, 23 Apr 2010 07:40:58 +0000 (08:40 +0100)]
Add debug-key 'D' to dump EPT p2m table.
Signed-off-by: Dongxiao Xu <dongxiao.xu@intel.com>
Keir Fraser [Fri, 23 Apr 2010 07:39:29 +0000 (08:39 +0100)]
xl: support oos domain parameter
Signed-off-by: Juergen Gross <juergen.gross@ts.fujitsu.com>
Acked-by: Vincent Hanquez <vincent.hanquez@eu.citrix.com>
Keir Fraser [Fri, 23 Apr 2010 07:38:35 +0000 (08:38 +0100)]
cpupools: optimise domain creation if pool movement is a no-op
Signed-off by: Juergen Gross <juergen.gross@ts.fujitsu.com>
Keir Fraser [Fri, 23 Apr 2010 07:37:19 +0000 (08:37 +0100)]
Revert 21224:
a7947fd90328 "xend: earlier remove the backend of tapdisk device"
Consensus is that this is not the correct fix.
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
Keir Fraser [Thu, 22 Apr 2010 16:43:56 +0000 (17:43 +0100)]
console: Make initial static console buffer __initdata.
The previous scheme --- freeing an area of BSS --- did not interact
nicely with device passthrough as IOMMU will not have any Xen BSS area
in guest device pagetables. Hence if the freed BSS space gets
allocated to a guest, DMAs to guest's own memory can fail.
The simple solution here is to always free the static buffer at end of
boot (initmem is specially handled for IOMMUs) and require a
dynamically-allocated buffer always to be created.
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
Keir Fraser [Thu, 22 Apr 2010 08:44:29 +0000 (09:44 +0100)]
xend: earlier remove the backend of tapdisk device in
xenstore to release the resource allocated in backend driver
lies in dom0'kernel
Blktapctl thread will use qemu-dm connection instead of tapdisk-ioemu
in the case of FV VM. We found the resource like memory allocated for
this Guest can't be free for backend driver couldn't be closed in qemu-dm.
This patch would remove the backend of tapdisk device earlier in
xenstore to triger qemu-dm to notify the backend driver to release the
resource allocated.
I have tested this patch at the case of
1, save && restore
2, destory && shutdown
3, snapshot
Signed-off-by: James ( Song Wei ) <jsong@novell.com>
Keir Fraser [Thu, 22 Apr 2010 08:42:37 +0000 (09:42 +0100)]
xend: don't drop device config on domain start failure
If domain creation in xend fails before devices are configured, e.g.
insufficient memory, device config is dropped from xend's managed
domain config.
Once xend is restarted, the domain's devices are lost.
This patch fixes a bug in XendConfig where only the device
controller was consulted for device configuration.
Signed-off-by: Jim Fehlig <jfehlig@novell.com>
Keir Fraser [Thu, 22 Apr 2010 08:41:36 +0000 (09:41 +0100)]
HAP 1GB: Add corner case handling for 1GB super page.
- Without the check, guest memory allocation will never reach the
boundary of a 1GB super page.
Signed-off-by: Dongxiao Xu <dongxiao.xu@intel.com>
Keir Fraser [Thu, 22 Apr 2010 08:39:58 +0000 (09:39 +0100)]
xl: add "xl info" command
The info subcommand was missing from the xl tool. Use the new libxl
wrapper functions to create a clone of "xm info". The splitting into
several smaller functions is enspired by the implementation in
XendNode.py.
Signed-off-by: Andre Przywara <andre.przywara@amd.com>
Acked-by: Vincent Hanquez <vincent.hanquez@eu.citrix.com>
Keir Fraser [Thu, 22 Apr 2010 08:39:17 +0000 (09:39 +0100)]
libxl: add version_info function
Xen provides a xen_version hypercall to query the values of several
interesting things (like hypervisor version, commandline used, actual
changeset, etc.). Create a user-friendly and efficient wrapper around
the libxc function to provide values for xl info output.
Since the information is static during the whole runtime, we store
it within the libxl_ctx structure and just deliver the pointer on
subsequent calls.
Signed-off-by: Andre Przywara <andre.przywara@amd.com>
Acked-by: Vincent Hanquez <vincent.hanquez@eu.citrix.com>
Keir Fraser [Thu, 22 Apr 2010 08:38:39 +0000 (09:38 +0100)]
libxl: add sched_get_id function
To get the name of the currently used scheduler, Xen provides a
sched_id sysctl. Add a libxl wrapper around the libxc function to
query this.
Signed-off-by: Andre Przywara <andre.przywara@amd.com>
Acked-by: Vincent Hanquez <vincent.hanquez@eu.citrix.com>
Keir Fraser [Thu, 22 Apr 2010 08:37:31 +0000 (09:37 +0100)]
libxl: extend physinfo structure
The libxl version of the physinfo sysctl does not contain some
fields like nr_nodes or capabilities needed for xl info output.
Add them to the structure and the retrieving function.
Signed-off-by: Andre Przywara <andre.przywara@amd.com>
Acked-by: Vincent Hanquez <vincent.hanquez@eu.citrix.com>
Keir Fraser [Wed, 21 Apr 2010 11:51:53 +0000 (12:51 +0100)]
cpupools [6/6]: Documentation changes
Signed-off-by: Juergen Gross <juergen.gross@ts.fujitsu.com>
Keir Fraser [Wed, 21 Apr 2010 11:51:13 +0000 (12:51 +0100)]
cpupools [5/6]: xm-test add-ons
Signed-off-by: Juergen Gross <juergen.gross@ts.fujitsu.com>
Keir Fraser [Wed, 21 Apr 2010 11:50:32 +0000 (12:50 +0100)]
cpupools [4/6]: python/xend changes
Signed-off-by: Juergen Gross <juergen.gross@ts.fujitsu.com>
Keir Fraser [Wed, 21 Apr 2010 11:49:41 +0000 (12:49 +0100)]
cpupools [3/6]: libxen changes
Signed-off-by: Juergen Gross <juergen.gross@ts.fujitsu.com>
Keir Fraser [Wed, 21 Apr 2010 11:49:00 +0000 (12:49 +0100)]
cpupools [2/6]: libxc changes
Signed-off-by: Juergen Gross <juergen.gross@ts.fujitsu.com>
Keir Fraser [Wed, 21 Apr 2010 11:48:03 +0000 (12:48 +0100)]
cpupools [1/6]: hypervisor changes
Signed-off-by: Juergen Gross <juergen.gross@ts.fujitsu.com>
Keir Fraser [Wed, 21 Apr 2010 07:31:31 +0000 (08:31 +0100)]
docs: Add tmem documentation
Signed-off-by: Dan Magenheimer <dan.magenheimer@oracle.com>
Keir Fraser [Wed, 21 Apr 2010 07:30:45 +0000 (08:30 +0100)]
xen: build fix GNU sed vs. BSD sed
Fixes the build error below:
gmake[5]: Entering directory `xen/arch/x86/boot'
gcc -O1 -fno-omit-frame-pointer -fno-optimize-sibling-calls -m32
-march=3Di686 -g -fno-strict-aliasing -std=3Dgnu99 -Wall
-Wstrict-prototypes
-Wno-unused-value -Wdeclaration-after-statement -fno-stack-protector
-Werror -fno-builtin -msoft-float -c reloc.c -o reloc.o
ld -melf_i386 -N -Ttext -o reloc.lnk reloc.o
ld: invalid hex number `-o'
BSD sed does not support the '+' in the basic re while gnu sed does.
BSD sed supports '+' in the extended re and uses the -E flag while
gnu sed uses -r.
The only difference with the original version is that the '+'
qualifier is replaced with '\{1\,\}' which should work with both BSD
sed and GNU sed.
Signed-off-by: Christoph Egger <Christoph.Egger@amd.com>
Acked-by: Ian Jackson <ian.jackson@eu.citrix.com>
Keir Fraser [Wed, 21 Apr 2010 07:29:26 +0000 (08:29 +0100)]
Tools: add online/offline hotplug user interfaces
Exporting cpu on/offline and memory on/offline hotplug interfaces,
so that users can do those (memory/cpu) hotplug actions with
following command line freely:
usage: xen-hptool <command> [args]
xen-hptool command list:\n\n
cpu-online <cpuid> online CPU <cpuid>
cpu-offline <cpuid> offline CPU <cpuid>
mem-online <mfn> online MEMORY <mfn>
mem-offline <mfn> offline MEMORY <mfn>
mem-status <mfn> query Memory status<mfn>
Signed-off-by: Yunhong Jiang<yunhong.jiang@intel.com>
Signed-off-by: Liping Ke <liping.ke@intel.com>
Keir Fraser [Tue, 20 Apr 2010 13:32:53 +0000 (14:32 +0100)]
tasklet: Add lock-free exit path from do_tasklet() when no work to do.
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
Keir Fraser [Tue, 20 Apr 2010 06:54:47 +0000 (07:54 +0100)]
x86: No need to sync_local_execstate() during CPU hot-unplug.
This is done implicitly when we enter stopmachine_run() context,
because the underlying tasklet mechanism performs the sync before
running a tasklet handler.
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
Keir Fraser [Mon, 19 Apr 2010 16:57:28 +0000 (17:57 +0100)]
x86: Rename __sync_lazy_execstate() to __sync_local_execstate().
This naming scheme is more rational. Also use non-x86-specific
function sync_local_execstate() where possible.
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
Keir Fraser [Mon, 19 Apr 2010 16:53:10 +0000 (17:53 +0100)]
x86 hvm: Simplify vlapic init-sipi logic (no async pause logic)
This is possible now that tasklets run in idle-vcpu context
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
Keir Fraser [Mon, 19 Apr 2010 16:48:20 +0000 (17:48 +0100)]
Synchronise lazy execstate before calling tasklet handlers.
This ensures we are properly running on idle-vcpu state, which certain
things (e.g., use of vmx_vmcs_{enter,exit}) rely on. It also means we
don't need to do the same thing in the stopmachine_run handler.
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
Keir Fraser [Mon, 19 Apr 2010 16:20:43 +0000 (17:20 +0100)]
tmem: (re-)enable by default
Late in the 4.0 release it was discovered that certain order>0
allocations could fail and had no fallback. This conflicted with
tmem especially when combined with aggressive ballooning.
A hack-y workaround patch was added in time for 4.0 that has
reduced (but not completely eliminated) the problem but
tmem was left disabled-by-default for the 4.0 release.
Re-enable it in xen-unstable by default to help identify cases
where the workaround is insufficient. Tmem can be
disabled with the no-tmem Xen boot option. Please report
failures (that are fixed with the no-tmem option) to me.
Signed-off-by: Dan Magenheimer <dan.magenheimer@oracle.com>
Keir Fraser [Mon, 19 Apr 2010 10:47:59 +0000 (11:47 +0100)]
stopmachine: Implement using tasklets rather than a softirq.
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
Keir Fraser [Mon, 19 Apr 2010 10:34:49 +0000 (11:34 +0100)]
x86: Simplify freeze_domains() and thaw_domains(). Since they now
run in idle-vcpu context, no care needs to be taken about pausing
'current'.
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
Keir Fraser [Mon, 19 Apr 2010 10:30:51 +0000 (11:30 +0100)]
Cleanups to cpu_disable_scheduler().
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
Keir Fraser [Mon, 19 Apr 2010 10:16:06 +0000 (11:16 +0100)]
Revert 21180:
11423ce78ee0, 21181:
9d5ecf79f1b5, 21185:
fddff17c7c74.
Unnecessary now that tasklets run in vcpu context.
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
Keir Fraser [Mon, 19 Apr 2010 10:07:14 +0000 (11:07 +0100)]
Simplify continue_hypercall_on_cpu() now that it runs in vcpu context.
We do not need to take so much care over putting the original vcpu to
sleep, as it will not be spinning on progress of the idle vcpu.
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
Keir Fraser [Mon, 19 Apr 2010 09:12:41 +0000 (10:12 +0100)]
Implement tasklets as running in VCPU context (sepcifically, idle-VCPU context)
...rather than in softirq context. This is expected to avoid a lot of
subtle deadlocks relating to the fact that softirqs can interrupt a
scheduled vcpu.
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
Keir Fraser [Mon, 19 Apr 2010 09:06:42 +0000 (10:06 +0100)]
Move tasklet implementation into its own source files.
This is preparation for implementing tasklets in vcpu context rather
than softirq context. There is no change to the implementation of
tasklets in this patch.
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
Keir Fraser [Mon, 19 Apr 2010 08:00:30 +0000 (09:00 +0100)]
Calling awk and not gawk in the Xen scripts
I noticed that 2 scripts in Xen 4.0.0 are calling "gawk". Normally, in
most distributions, gawk is considered a specific version of awk.
Calling "gawk" and not "awk" generally means that you need
specificities of the "g" version of awk, as opposed to "mawk" which is
another implementation of the same tool.
So, unless I misread the scripts, Xen doesn't need to use gawk but
just any implementation of awk, and the attached patch can safely be
applied.
If I am wrong (which I don't think I am at the first look) and that
there's a reason why gawk is used and not awk, then IMHO, the toplevel
README should mention it in the prerequisites.
From: Thomas Goirand <thomas@goirand.fr>
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
Keir Fraser [Mon, 19 Apr 2010 07:59:14 +0000 (08:59 +0100)]
xend: support 'ioemu' subtype in tap protocol specification
blktapctrl supports both 'tapdisk' and 'ioemu' subtypes in tap
protocol specification. Support the 'ioemu' subtype in xend
BlktapController as well.
Signed-off-by: Jim Fehlig <jfehlig@novell.com>
Keir Fraser [Mon, 19 Apr 2010 07:58:43 +0000 (08:58 +0100)]
tools/hotplug/Linux/blktap: remove optional tapdisk: prefix
Perhaps this should even be further generalized (e.g. to remove any
"[!/]*:" pattern prefixes) to be more forward compatible?
Signed-off-by: Jan Beulich <jbeulich@novell.com>
Keir Fraser [Mon, 19 Apr 2010 07:55:33 +0000 (08:55 +0100)]
mce: Add a x86_mcinfo_reserve() function, to reserve space from mc_info.
With this method, we don't need to collect bank and globalinformation
to a local variable and do x86_mcinfo_add() to copy that information
to mc_info. This avoid copy and also we can be aware earlier if there
is enough space in the mc_info.
Also extract function that get global/bank information to seperated
function mca_init_bank/mca_init_global.
It's meaningless to get the current information in mce context, keep
it here but should be removed in future.
Also a flag added to mc_info, to indicate some information is lost due
to OOM.
Signed-off-by: Jiang, Yunhong <yunhong.jiang@intel.com>
Keir Fraser [Mon, 19 Apr 2010 07:54:53 +0000 (08:54 +0100)]
Clean up MCA MSR virtualization and vMCE injection
Remove all virtual MCE related work into a seperated file.
It also try to do some clean-up on the vMCE, including:
a) renmae some function name like mce_init_msr/mce_rdmsr to be
vmce_init_msr/vmce_rdmsr to make it more straightforward,
b) make the vmca_msrs be a pointer in arch_domain,
to decrease arch_domain's size
c) extract per-bank MCA MSR access to be seperated function
(bank_mce_wrmsr/bank_mce_rdmsr) to make it be a bit cleaner.
d) A new file xen/include/asm-x86/mce.h is added for vmce related
header.
Signed-off-by: Jiang, Yunhong <yunhong.jiang@intel.com>