xen/arm: split vgic driver into generic and vgic-v2 driver
Existing vGIC driver has both generic code and hw specific
code. Segregate vGIC low level driver into vgic-v2.c and
keep generic code in existing vgic.c file.
Some static generic functions in vgic.c is made as non-static
so that these generic functions can be used in vGIC v2 driver.
vGIC v2 driver registers required callbacks to generic vGIC
driver. This helps to plug in next version of vGIC drivers
like vGIC v3. These callbacks are registered per domain
Signed-off-by: Vijaya Kumar K <Vijaya.Kumar@caviumnetworks.com> Acked-by: Julien Grall <julien.grall@linaro.org> Acked-by: Ian Campbell <ian.campbell@citrix.com>
xen/arm: calculate vgic irq rank based on register size
vGIC irq rank was computed assuming the register offset is byte
size.Use the HSR abort address size in calculating register size.
So, with this patch following are achieved
(1) In the code 'dabt.size != number' this number is always
BYTE/HALF_WORD/WORD/DOUBLE defined by HSR register.
Instead of checking for hard coded values use HSR abort
address size values.
(2) The vgic_rank_offset also depends on register size to
compute the rank offset. Though there is no direct relation
between rank offset computation and HSR dabt.size the same
values are used to calculate irq rank.
This make vgic_rank_offset generic as it takes register
size as parameter to calculate irq rank instead of hard coding to
value 2 in previous patches
Also, output of REG_RANK_INDEX macro is modulo by 32 to make
sure register index is always within irq rank
Signed-off-by: Vijaya Kumar K <Vijaya.Kumar@caviumnetworks.com> Acked-by: Ian Campbell <ian.campbell@citrix.com>
xen/arm: move pending_irq structure to vgic header file
gic.h requires definition of pending_irq structure defined
in domain.h and domain.h requires gic_state structure defined
in gic.h and hence there is inter-dependency between domain.h
and gic.h files.
So move pending_irq to vgic.h which is relevant place for this
structure and break domain.h and gic.h interdependency
By this move irq_to_pending function declaration from gic.h
to vgic.h
Signed-off-by: Vijaya Kumar K <Vijaya.Kumar@caviumnetworks.com> Acked-by: Ian Campbell <ian.campbell@citrix.com> Acked-by: Julien Grall <julien.grall@linaro.org>
Wei Liu [Wed, 9 Jul 2014 09:45:29 +0000 (10:45 +0100)]
libxl IDL: generate deep copy functions
Introduces copy_fn for a type.
For most builtin types we can use direct assignment. For those builtin
types which cannot use direct assignment we use the copy functions in
previous patch.
Signed-off-by: Wei Liu <wei.liu2@citrix.com> Acked-by: Ian Campbell <ian.campbell@citrix.com>
Wei Liu [Wed, 9 Jul 2014 09:45:27 +0000 (10:45 +0100)]
libxl/gentest.py: test JSON parser
The test is done in following steps:
1. initialise libxl_FOO struct
2. generate JSON string A for libxl_FOO struct FOO1
3. convert JSON string A to libxl_FOO struct FOO2
4. generate JSON string B for libxl_FOO struct FOO2
5. compare A and B
If A and B are identical then we are good.
Signed-off-by: Wei Liu <wei.liu2@citrix.com> Acked-by: Ian Campbell <ian.campbell@citrix.com>
Wei Liu [Wed, 9 Jul 2014 09:45:26 +0000 (10:45 +0100)]
libxl IDL: generate code to parse libxl__json_object to libxl_FOO struct
libxl_FOO_parse_json functions are generated.
Note that these functions are used to parse libxl__json_object to
libxl__FOO struct. They don't consume JSON string.
The new function definitions are generated to new header files called
__libxl_types_*_private.h so that they don't contaminate public header.
The suffix "private is chosen so we can avoid clashing with
libxl_types_internal.idl stuffs.
Signed-off-by: Wei Liu <wei.liu2@citrix.com> Acked-by: Ian Campbell <ian.campbell@citrix.com>
Wei Liu [Wed, 9 Jul 2014 09:45:25 +0000 (10:45 +0100)]
libxl: clean up namespace violation
In 752f181f ("libxl_json: introduce parser functions for builtin types")
a bunch of parser functions were introduced. Unfortunately they
polluted the public namespace with a prefix "libxl_", while they should
be internal functions.
This patch changes the prefix to "libxl__". No functional change
introduced.
Signed-off-by: Wei Liu <wei.liu2@citrix.com> Acked-by: Ian Campbell <ian.campbell@citrix.com>
Wei Liu [Wed, 9 Jul 2014 09:45:24 +0000 (10:45 +0100)]
libxl/gentypes.py: don't generate default values
If a field:
0. is not of aggregate type
and
1. is of array type and the array is not empty
or 2. is of a type which has init_val and has been set to init_val,
or 3. is of builtin type and has been set to internal default value,
or 4. is of a type which has no init_val and has been set to 0
then there's no need to generate output for that field in JSON
output.
Note that 0 can result in output like
{
...
FOO : { }
...
}
where FOO is aggregate type but all its fields are set to default, hence
no JSON output in {} at all. This is not pretty, but it's still valid
JSON. And the parser should be able to skip touching those fields in the
resulting C structures. When the parser consumes that generated JSON
object, all default values should be automatically filled in.
Also change some non-zero init_vals to LIBXL_* for better readability in
generated C code.
Signed-off-by: Wei Liu <wei.liu2@citrix.com> Acked-by: Ian Campbell <ian.campbell@citrix.com>
Wei Liu [Wed, 11 Jun 2014 16:35:07 +0000 (17:35 +0100)]
libxl_internal: functions to check default values for builtin types
They will be used in later patch to determine whether we should generate
JSON output for a type. If that type has default value we just skip
generating JSON output.
Signed-off-by: Wei Liu <wei.liu2@citrix.com> Acked-by: Ian Campbell <ian.campbell@citrix.com>
GICH_LR_HW doesn't work as expected on X-Gene: request maintenance
interrupts and perform EOIs in the hypervisor for hardware interrupts as
a workaround. Trigger this behaviour with a per platform option.
This patch assumes that GICC_DIR can be written on any pcpu for a given
SPI, not matter where GICC_IAR has been read before.
The file xen/arm/time.c contains some unused code:
- calibrate_timer: firmware already set correctly CNTFRQ. If it's
not the case the device tree will containt a property clock-frequency
in the timer node
- USE_HYP_TIMER: It's set unconditionally to 1. I didn't see any
recent model having issue with the hyp timer. I think we can drop
it safely.
Signed-off-by: Julien Grall <julien.grall@linaro.org> Acked-by: Ian Campbell <ian.campbell@citrix.com>
Andrew Cooper [Mon, 7 Jul 2014 10:26:48 +0000 (11:26 +0100)]
tools/python: Improve .gitignore and clean Makefile rule
Ignore all intermediate python files, and use find in the clean rule as there
are no Makefiles in subdirectories to participate in a recursive clean.
Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com> CC: Ian Campbell <Ian.Campbell@citrix.com> CC: Ian Jackson <Ian.Jackson@eu.citrix.com> Acked-by: Ian Campbell <ian.campbell@citrix.com>
When an idle VCPU is running, Xen will never exit the hypervisor mode.
Futhermore, some part of the VCPU/domain initialization is already skipped for
them to avoid memory consumption.
Actually each save/restore functions are checking themself if the vcpu is
an idle one or not. We can safely skipped the context switch in one place
and gain a bit of time when we {,un}schedule idle VCPU. This is because
the saving part will take care of disabling anything related to guest (such
as GICv).
Also replace every check of and idle VCPU in save/restore functions by an
ASSERT, to know if someone is calling them with an idle VCPU in argument.
Signed-off-by: Julien Grall <julien.grall@linaro.org> Acked-by: Ian Campbell <ian.campbell@citrix.com>
Andrew Cooper [Fri, 4 Jul 2014 16:06:20 +0000 (17:06 +0100)]
tools/xenctx: Correct use of xc_domain_{, un}pause()
The previous code never worked correctly. There was a TOCTOU race between
checking dominfo and pausing the domain.
Since c/s 3eb1c708, Xen properly reference counts pause hypercalls, so
unconditionally pause and unpause the domain.
Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com> CC: Ian Campbell <Ian.Campbell@citrix.com> CC: Ian Jackson <Ian.Jackson@eu.citrix.com> CC: George Dunlap <george.dunlap@eu.citrix.com> Acked-by: Ian Campbell <ian.campbell@citrix.com>
Ian Campbell [Wed, 9 Jul 2014 12:07:42 +0000 (13:07 +0100)]
xen: arm: only put_page for p2m operations which require it.
In particular do not do it for CACHEFLUSH.
INSERT, RELINQUISH and REMOVE should all put the page (if the current pte is
valid). ALLOCATE doesn't need to since it asserts the current PTE must be
invalid.
Signed-off-by: Ian Campbell <ian.campbell@citrix.com> Acked-by: Julien Grall <julien.grall@linaro.org>
Ian Campbell [Wed, 9 Jul 2014 12:07:41 +0000 (13:07 +0100)]
tools: arm: allocate large pages to guests.
Tries to allocate as many large (1G or 2M) pages as it can to the guest and tries
to align to the next larger size on each attempt so that we can attempt to
allocate even larger pages on the next iteration (this is currently only
exercised via a compile time debug option, which is left in place under a #if
0).
Since ARM page tables are consistent at each level there is a common helper
function which tries to allocate a levels worth of pages. The exception to this
consistency is level 0 which does not support table mappings (0.5TB
superpages!).
Signed-off-by: Ian Campbell <ian.campbell@citrix.com> Acked-by: Julien Grall <julien.grall@linaro.org> Acked-by: Ian Jackson <ian.jackson@eu.citrix.com>
Ian Campbell [Wed, 9 Jul 2014 12:07:40 +0000 (13:07 +0100)]
tools/libxc: pull min/max_t into xc_private.h
There are generally useful.
Signed-off-by: Ian Campbell <ian.campbell@citrix.com> Acked-by: Julien Grall <julien.grall@linaro.org> Acked-by: Ian Jackson <ian.jackson@eu.citrix.com>
Ian Campbell [Wed, 9 Jul 2014 12:30:54 +0000 (13:30 +0100)]
xen/arm: Fix PLATFORM_QUIRK_GIC_64K_STRIDE
The patch "xen/arm: use ioremap to map gic-v2 registers" handled this
quirk by mapping a 64K+1 page region, but the code continued to
assume that GICC_DIR was at offset 0x1000 from the start of the
mapping.
Fix this by mapping both pages of the GICC space independently and
adjusting the accessor function to use the correct page.
Ian Campbell [Wed, 9 Jul 2014 12:30:53 +0000 (13:30 +0100)]
xen/arm: Introduce accessors for GICv2 MMIO reads/writes
A future patch needs to make the accesses to GICC more complex. For consistency
introduce read/write wrappers for all three regions (GICD, GICC, GICH).
Signed-off-by: Ian Campbell <ian.campbell@citrix.com> Cc: Vijaya Kumar K <Vijaya.Kumar@caviumnetworks.com> Acked-by: Julien Grall <julien.grall@linaro.org>
oxenstored: perform a 3-way merge of the quota after a transaction
At a beginning of a transaction, the quotas from the global store
are duplicated and modified by the transaction. If during the
transaction, an action associated to no transaction is concurrently
executed, the quotas of the global store are updated, and then the
updates are lost when the transaction merges.
We fix this problem by keeping another copy of the quota at the
beginning of the transaction, and performing a 3-way merge between
the quotas from the transaction and the "original" copy of the quota
onto the quota of the global store.
Signed-off-by: Jerome Maloberti <jerome.maloberti@citrix.com> Signed-off-by: Euan Harris <euan.harris@citrix.com> Acked-by: David Scott <dave.scott@citrix.com>
If a domU has exhausted its quota we still want the toolstack in dom0 to
be able to create new nodes in places like
/local/domain/%d/control/shutdown
Without this patch, a domU which has exhausted its quota can only be
powered off, which is not as good as being able to request a clean
shutdown.
Signed-off-by: Thomas Sanders <thomas.sanders@citrix.com> Signed-off-by: Euan Harris <euan.harris@citrix.com> Acked-by: David Scott <dave.scott@citrix.com>
tools/libxc: Use xc_hvm_param_get() instead of xc_get_hvm_param()
Use xc_hvm_param_get() instead of xc_get_hvm_param() as the latter has
been deprecated.
Signed-off-by: Aravindh Puthiyaparambil <aravindp@cisco.com> Cc: Ian Jackson <ian.jackson@eu.citrix.com> Cc: Stefano Stabellini <stefano.stabellini@eu.citrix.com> Cc: Ian Campbell <ian.campbell@citrix.com> Acked-by: Ian Campbell <ian.campbell@citrix.com>
Commit 447f613c (lzo: update LZO compression to current upstream
version) broke the stub domain build. This patch fixes the build
breakage.
Cc: Ian Jackson <ian.jackson@eu.citrix.com> Cc: Stefano Stabellini <stefano.stabellini@eu.citrix.com> Cc: Ian Campbell <ian.campbell@citrix.com> Cc: Jan Beulich <jbeulich@suse.com> Signed-off-by: Aravindh Puthiyaparambil <aravindp@cisco.com> Acked-by: Ian Campbell <ian.campbell@citrix.com>
For safety reasons, c/s 6ae2df93c27 "mem_access: Add helper API to setup
ring and enable mem_access" has to pause the domain while it performs a set of
operations.
However without properly reference counted hypercalls, xc_mem_event_enable()
now unconditionally unpauses a previously paused domain.
To prevent toolstack software running wild, there is an arbitrary limit of 255
on the toolstack pause count. This is high enough for several components of
the toolstack to safely use, but prevents over/underflow of d->pause_count.
The previous domain_{,un}pause_by_systemcontroller() functions are updated to
return an error code. domain_pause_by_systemcontroller() is modified to have
a common stub and take a pause_fn pointer, allowing for both sync and nosync
domain pauses. domain_pause_for_debugger() has a hand-rolled nosync pause
replaced with the new domain_pause_by_systemcontroller_nosync(), and has its
variables shuffled slightly to avoid rereading current multiple times.
Suggested-by: Don Slutz <dslutz@verizon.com> Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com>
With a couple of formatting adjustments: Reviewed-by: Jan Beulich <jbeulich@suse.com>
The lzo decompressor can, if given some really crazy data, possibly
overrun some variable types. Modify the checking logic to properly
detect overruns before they happen.
Reported-by: "Don A. Bailey" <donb@securitymouse.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Original Linux commit: 206a81c18401c0cde6e579164f752c4b147324ce.
This is CVE-2014-4607 (but not a security issue in Xen, since the code
is only used for loading the Dom0 kernel and _inside_ an eventual DomU
for loading its kernel).
Signed-off-by: Jan Beulich <jbeulich@suse.com> Acked-by: Ian Campbell <ian.campbell@citrix.com>
lzo: update LZO compression to current upstream version
This commit updates the kernel LZO code to the current upsteam version
which features a significant speed improvement - benchmarking the Calgary
and Silesia test corpora typically shows a doubled performance in
both compression and decompression on modern i386/x86_64/powerpc machines.
Julien Grall [Mon, 16 Jun 2014 16:18:04 +0000 (17:18 +0100)]
libxl/arm: Rename set_interrupt_ppi to set_interrupt and handle SPIs
The function will be used later during device passthrough to create
interrupts in the device tree. Those interrupts are usually SPIs.
Signed-off-by: Julien Grall <julien.grall@linaro.org> Cc: Ian Jackson <ian.jackson@eu.citrix.com> Cc: Stefano Stabellini <stefano.stabellini@eu.citrix.com> Cc: Ian Campbell <ian.campbell@citrix.com> Acked-by: Ian Campbell <ian.campbell@citrix.com>
Julien Grall [Mon, 16 Jun 2014 16:18:03 +0000 (17:18 +0100)]
libxl/arm: Introduce DT_IRQ_TYPE_*
Avoid to use hardcode value when the interrupt type is set.
Signed-off-by: Julien Grall <julien.grall@linaro.org> Cc: Ian Jackson <ian.jackson@eu.citrix.com> Cc: Stefano Stabellini <stefano.stabellini@eu.citrix.com> Cc: Ian Campbell <ian.campbell@citrix.com> Acked-by: Ian Campbell <ian.campbell@citrix.com>
xen/arm: Small fixes after GICv2 changes by commit ee65c87
The commit ee65c87 moves the GICv2 code in a separate file. Even though this
patch is only deals with code movement, a comment was modify for no reason.
Also rename gicv_v2_init into gicv2v_setup which is what the function does
and less confusing with the other function called gicv2_init.
Signed-off-by: Julien Grall <julien.grall@linaro.org> Acked-by: Ian Campbell <ian.campbell@citrix.com>
Tamas K Lengyel [Wed, 2 Jul 2014 12:04:04 +0000 (14:04 +0200)]
libxc: Relocate internal-only mem_event functions to xc_private.h
The public xenctrl.h header exposes several internal-only functions of the mem_event system. As one of these functions (xc_mem_event_enable) had been previously used for a different purpose, relocating the entire set of xc_mem_event_* functions makes it easier for an external user of the library to determine which version of the mem_access system libxc exposes.
Signed-off-by: Tamas K Lengyel <tamas.k.lengyel@tum.de> Acked-by: Ian Campbell <ian.campbell@citrix.com>
xen/arm: Drop reference on foreign page when guest_physmap_add_entry has failed
When a foreign page is added to the guest p2m, we take a reference on this page.
Currently if the mapping has failed when a leak a reference, this will result
to the guest will foreign guest will became a zombie as soon as it's destroyed.
Signed-off-by: Julien Grall <julien.grall@linaro.org> Acked-by: Ian Campbell <ian.campbell@citrix.com>
Boris Ostrovsky [Fri, 27 Jun 2014 14:07:31 +0000 (10:07 -0400)]
tools/pygrub: Make pygrub understand default entry in string format
Currently pygrub can only correctly parse grub2's default attribute when it is
specified as a number. If it is set to ${saved_entry} or ${next_entry} then
the first image (i.e. entry number 0) is selected. If any other value is
specified (typically this would be the string in menuentry) pygrub will crash.
This patch will allow pygrub to interpret default attribute if it is specified
as a string (note that in case of submenus only the leaf string will be
considered).
Also issue a warning if default is set to ${saved_entry} or ${next_entry}.
Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com> Acked-by: Ian Campbell <ian.campbell@citrix.com>
Li Liang [Mon, 30 Jun 2014 00:48:37 +0000 (08:48 +0800)]
libxl: fix the bug which will cause heap to break down
If the JSON message contains more bytes than QMP_RECEIVE_BUFFER_SIZE,
this bug will break down the heap, that leads to core dump. One more
byte should be allocated to contain the appended null character.
Signed-off-by: Li Liang <liangx.z.li@intel.com> Acked-by: Ian Campbell <ian.campbell@citrix.com>
Yang Hongyang [Fri, 6 Jun 2014 05:57:35 +0000 (13:57 +0800)]
MAINTAINERS: Add Yang Hongyang to REMUS part
Add Yang Hongyang as co-maintainer of REMUS.
Signed-off-by: Yang Hongyang <yanghy@cn.fujitsu.com> Acked-by: Shriram Rajagopalan <rshriram@cs.ubc.ca> Acked-by: Ian Jackson <ian.jackson@eu.citrix.com>
Yang Hongyang [Wed, 25 Jun 2014 07:26:15 +0000 (15:26 +0800)]
MAINTAINERS: Update maintained files of REMUS part
delete tools/remus and add docs/README.remus
Signed-off-by: Yang Hongyang <yanghy@cn.fujitsu.com> Acked-by: Shriram Rajagopalan <rshriram@cs.ubc.ca> Acked-by: Ian Jackson <ian.jackson@eu.citrix.com>
Yang Hongyang [Wed, 25 Jun 2014 07:26:14 +0000 (15:26 +0800)]
remus: add wikipage link to remus README
http://nss.cs.ubc.ca/remus/ does not exists, replace it
with Remus wikipage.
Signed-off-by: Yang Hongyang <yanghy@cn.fujitsu.com> Acked-by: Ian Jackson <ian.jackson@eu.citrix.com> Acked-by: Shriram Rajagopalan <rshriram@cs.ubc.ca>
Yang Hongyang [Wed, 25 Jun 2014 07:26:13 +0000 (15:26 +0800)]
remus: move remus README to docs directory
We do not need a separate directory to store remus README, just
move it to docs/ directory.
Signed-off-by: Yang Hongyang <yanghy@cn.fujitsu.com> Acked-by: Shriram Rajagopalan <rshriram@cs.ubc.ca> Acked-by: Ian Jackson <ian.jackson@eu.citrix.com>
Roger Pau Monne [Fri, 27 Jun 2014 14:06:28 +0000 (16:06 +0200)]
libxl: add support for FreeBSD uuid implementation
Add the FreeBSD specific uuid implementation. Since uuid_t is not
defined as an array, but as a struct on FreeBSD, use a union with a
array in order to be able to return the uuid as a bytearray.
Also, added a libxl internal compile time assert macro, that is used
to assert that the size of uuid_t is the same as the union used in
libxl.
Signed-off-by: Roger Pau Monné <roger.pau@citrix.com> Cc: Ian Jackson <Ian.Jackson@eu.citrix.com> Cc: Ian Campbell <ian.campbell@citrix.com> Acked-by: Ian Campbell <ian.campbell@citrix.com>
The provenance of the m4 pkg.m4 macro library was not documented
and it was not clear how and if we can update this without breaking
things. Document where this comes from, update us to the latest
release from git and put a warning about avoiding private evolutions
so that instead things go upstream.
The pkg-config m4 macro library comes from the upstream pkg-config
git repository [0]. If you update the m4 library update this file
with provenance and last commit ID information. For documentation
on how to use this read the pkg-config(1) man page.
glib: Fix Makefiles to suppress warnings from automake
With the newly added glib.mk, some of the noinst_* variables need to use
+= in the evaluation to avoid multiple definition warnings from
automake.
Cc: Ian Campbell <ian.campbell@citrix.com> Cc: Ian Jackson <ian.jackson@eu.citrix.com> Cc: Jan Beulich <jbeulich@suse.com> Cc: Keir Fraser <keir@xen.org> Cc: Tim Deegan <tim@xen.org> Acked-by: Ian Campbell <ian.campbell@citrix.com> Signed-off-by: Luis R. Rodriguez <mcgrof@suse.com>
[ ijc -- ran autogen.sh ]
With some new functionality introduced we can't keep around the old cache,
but more specifically at times autogen.sh can produce inconsistent
results without considering all files obsolete. The cost of considering
all files obsolete is small so just force it.
Signed-off-by: Luis R. Rodriguez <mcgrof@suse.com> Cc: Ian Campbell <ian.campbell@citrix.com> Cc: Ian Jackson <ian.jackson@eu.citrix.com> Cc: Jan Beulich <jbeulich@suse.com> Cc: Keir Fraser <keir@xen.org> Cc: Tim Deegan <tim@xen.org> Acked-by: Roger Pau Monné <roger.pau@citrix.com> Acked-by: Ian Campbell <ian.campbell@citrix.com>
tools/xendomains: move to libexec and use a smaller init helper
The xendomains script can be reused with systemd systems as it
does not control services or sockets per se, but does a one shot
scrape of domUs it needs start bring up, stop, reload so we're
going to reuse it. This moves the core of the script to libexec
and leaves only a helper on init.
Cc: Ian Jackson <ian.jackson@eu.citrix.com> Cc: Stefano Stabellini <stefano.stabellini@eu.citrix.com> Cc: Jan Rękorajski <baggins@pld-linux.org> Cc: M A Young <m.a.young@durham.ac.uk> Cc: Jacek Konieczny <jajcus@jajcus.net> Cc: xen-devel@lists.xenproject.org Signed-off-by: Luis R. Rodriguez <mcgrof@suse.com> Acked-by: Ian Campbell <ian.campbell@citrix.com>
This has no functional changes. This is just to prepare the file
to be moved, so you won't blind your eyes or get git am to complain.
Cc: Ian Jackson <ian.jackson@eu.citrix.com> Cc: Stefano Stabellini <stefano.stabellini@eu.citrix.com> Cc: Ian Campbell <ian.campbell@citrix.com> Cc: Jan Rękorajski <baggins@pld-linux.org> Cc: M A Young <m.a.young@durham.ac.uk> Cc: Jacek Konieczny <jajcus@jajcus.net> Cc: xen-devel@lists.xenproject.org Acked-by: Ian Campbell <ian.campbell@citrix.com> Signed-off-by: Luis R. Rodriguez <mcgrof@suse.com>
tools/xendomains: make xl the default and remove xm usage
xm is gone so make xl the default and remove xm stuff.
Cc: Ian Jackson <ian.jackson@eu.citrix.com> Cc: Stefano Stabellini <stefano.stabellini@eu.citrix.com> Cc: Ian Campbell <ian.campbell@citrix.com> Cc: Jan Rękorajski <baggins@pld-linux.org> Cc: M A Young <m.a.young@durham.ac.uk> Cc: Jacek Konieczny <jajcus@jajcus.net> Cc: xen-devel@lists.xenproject.org Acked-by: Ian Campbell <ian.campbell@citrix.com> Signed-off-by: Luis R. Rodriguez <mcgrof@suse.com>
Len Brown [Wed, 2 Jul 2014 12:51:18 +0000 (14:51 +0200)]
mwait-idle: fine-tune IVT residency targets
Ivy Town processors have slightly different properties
than Ivy Bridge processors, particuarly as socket count grows.
Here we add dedicated tables covering 1-2 socket,
3-4 socket, and > 4 socket IVT configurations.
This reduces the frequency of deep transitions on those systems,
which can impact throughput.
Signed-off-by: Len Brown <len.brown@intel.com>
Socket count determination needs to be done differently for us: The
relevant code runs in a pre-SMP initcall, and hence can't use
cpu_to_socket() (as only the boot CPU's cpu_data[].phys_proc_id got set
up by that time). As a replacement the patch introduces
apicid_to_socket(), thus estimating the socket count based on the boot
CPU's internal topology information (if all CPUs in a system are the
same, wich ought to be the common case, this estimate will be precise).
Note that apicid_to_socket() handles Intel topology determination only
for now, as the mwait-idle driver currently only supports Intel CPUs.
Jan Kiszka [Wed, 2 Jul 2014 12:50:46 +0000 (14:50 +0200)]
mwait-idle: add CPU model 54 (Atom N2000 series)
Add CPU ID for Atom N2600/N2800 processors. Datasheets indicate support
for this, detailed information about potential quirks or limitations are
missing, though. So we just reuse the definition for the previous ATOM
series. Tests on N2800 systems showed that this addition is fine an can
reduce power consumption by about 0.25 W (personally confirmed on Intel
DN2800MT).
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Jan Beulich <jbeulich@suse.com>
Len Brown [Wed, 2 Jul 2014 12:49:37 +0000 (14:49 +0200)]
mwait-idle: allow sparse sub-state numbering, for Bay Trail
Like acpi_idle, mwait-idle compared sub-state numbers
to the number of supported sub-states -- discarding
sub-states numbers that were numbered >= the number of states.
But some Bay Trail SOCs use sparse sub-state numbers,
so we can't make such a comparison if we are going
to access those states.
So now we simply check that _some_ sub-states are
supported for the given state, and assume that the
sub-state number in our driver is valid.
In practice, the driver is correct, and even if it were not,
the hardware clips invalid sub-state requests to valid ones.
No entries in the driver require this change,
but Bay Trail will need it.
Signed-off-by: Len Brown <len.brown@intel.com> Signed-off-by: Jan Beulich <jbeulich@suse.com>
gic.h contains defines of vgic. Move these to vgic
header file. Also move inline functions and defines/macros
in vgic.c to vgic.h. These vgic functions and macros
can be used by other GIC HW specific VGIC drivers,
Signed-off-by: Vijaya Kumar K <Vijaya.Kumar@caviumnetworks.com> Acked-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com> Acked-by: Ian Campbell <ian.campbell@citrix.com> Acked-by: Julien Grall <julien.grall@linaro.org>
xen/arm: switch to dynamic allocation of vgic rank
vgic_irq_rank structure contains gic specific data elements.
Move this out of domain.h to new vgic header file vgic.h
Allocate memory dynamically in vgic driver.
This patch reduces the size of domain struct and helps to
keep domain struct within PAGE_SIZE when future GIC hw versions
are added
Signed-off-by: Vijaya Kumar K <Vijaya.Kumar@caviumnetworks.com> Acked-by: Julien Grall <julien.grall@linaro.org> Acked-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com> Acked-by: Ian Campbell <ian.campbell@citrix.com>
xen/arm: move GIC context data structure to gic driver
arch_domain in domain.h defines all the GIC registers
that needs to be saved/restored directly.
These GIC registers are GIC HW version specific. The number
of registers and size of registers varies with GIC version.
So move these registers to gic.h file and make a union of these
registers. This helps to define GIC HW version specific
structure to this union for later GIC versions.
Signed-off-by: Vijaya Kumar K <Vijaya.Kumar@caviumnetworks.com> Acked-by: Julien Grall <julien.grall@linaro.org> Acked-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com> Acked-by: Ian Campbell <ian.campbell@citrix.com>
Jan Beulich [Mon, 30 Jun 2014 14:01:03 +0000 (16:01 +0200)]
x86: move alternative.c data fully into .init.*
This wasn't done upon the initial addition of the file since the
section processing needs some adjustment for this: We can't mark the
two arrays needing relocations as either __initdata or __initconst, as
both have the potential of creating section conflicts (with -fPIC the
compiler may want to mark the section writable due to the necessary
relocations, colliding with other __initconst uses, and if the compiler
chooses to use the provided section name, __initdata on a constant
object might collide with other __initdata uses). However, local data
known to be referenced only by init code/data can also safely be moved
into .init.*. Hence the respective logic is being tweaked such that it
won't complain on non-empty .*.local sections.
While at it also drop the non-local section names from
SPECIAL_DATA_SECTIONS - they can't be safely converted.
Jan Beulich [Mon, 30 Jun 2014 13:57:40 +0000 (15:57 +0200)]
VT-d/ATS: correct and clean up dev_invalidate_iotlb()
While this was intended to only do cleanup (replace the two bogus
"ret |= " constructs, and a simple formatting correction), this now
also
- fixes the bit manipulations for size_order > 0
a) correct an off-by-one in the use of size_order for shifting (till
now double the requested size got invalidated)
b) in fact setting bit 12 and up if necessary (without which too
small a region might have got invalidated)
c) making them capable of dealing with regions of 4Gb size and up
- corrects the return value handling, such that a later iteration's
success won't clear an earlier iteration's error indication
- uses PCI_BDF2() instead of open coding it
- bail immediately on bad passed in invalidation type, rather than
repeatedly printing the same message for each ATS-capable device, at
once also no longer hiding that failure from the caller
Signed-off-by: Jan Beulich <jbeulich@suse.com> Reviewed-by: Andrew Cooper <andrew.cooper3@citrix.com> Acked-by: Yang Zhang <yang.z.zhang@intel.com>
David Vrabel [Fri, 27 Jun 2014 13:57:52 +0000 (14:57 +0100)]
xl: generate a new random VM generation ID if requested
If the "generation_id" option is set in the domain configuration,
generate and set a new random VM generation ID every time a domain is
created or restored.
xl lacks the infrastructure to fully track the lifecycle of VM images
as they are snapshotted and cloned (etc) so always using a new ID is
the safe option and ensures that a new one will be used where it matters.
Signed-off-by: David Vrabel <david.vrabel@citrix.com> Acked-by: Ian Campbell <ian.campbell@citrix.com>
David Vrabel [Fri, 27 Jun 2014 13:57:51 +0000 (14:57 +0100)]
libxl: allow a generation ID to be specified at domain creation
Toolstacks may specify a VM generation ID using the u.hvm.ms_vm_genid
field in the libxl_domain_build_info structure, when creating a
domain.
The toolstack is responsible for providing the correct generation ID
according to the Microsoft specification (e.g., generating new random
ones with libxl_ms_vm_genid_generate() as appropriate when restoring).
Although the specification requires that a ACPI Notify event is raised
if the generation ID is changed, the generation ID is never changed
when the domain is in a state to receive such an event (it's either
newly created or suspended).
Signed-off-by: David Vrabel <david.vrabel@citrix.com> Cc: David Scott <dave.scott@citrix.com> Acked-by: Ian Campbell <ian.campbell@citrix.com>
Vijaya Kumar K [Thu, 26 Jun 2014 05:33:53 +0000 (11:03 +0530)]
xen/arm: move io.h as mmio.h to include folder
io.h is local to arch/arm folder. move this file as mmio.h
file to include/asm-arm folder as it might be
required for inclusion in other header files in future.
Signed-off-by: Vijaya Kumar K <Vijaya.Kumar@caviumnetworks.com> Acked-by: Julien Grall <julien.grall@linaro.org> Acked-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com> Acked-by: Ian Campbell <ian.campbell@citrix.com>
Roger Pau Monne [Thu, 19 Jun 2014 16:32:48 +0000 (18:32 +0200)]
libxc: fix printf formatting error surfaced by 66f8c6
The privcmd hypercall op and arguments on BSDs are unsigned long, so
use the proper printf format especifiers.
Signed-off-by: Roger Pau Monné <roger.pau@citrix.com> Cc: Ian Jackson <Ian.Jackson@eu.citrix.com> Cc: Ian Campbell <ian.campbell@citrix.com> Acked-by: Ian Campbell <ian.campbell@citrix.com>
Roger Pau Monne [Thu, 19 Jun 2014 16:32:47 +0000 (18:32 +0200)]
libxl: remove the gate that only allows block or regular backing images
On FreeBSD ZVOLs/disks/partitions are char devices, so libxl must
allow it's usage. This is already taken care in the OS-specific bits
of libxl by libxl__try_phy_backend, so remove the generic gate.
Signed-off-by: Roger Pau Monné <roger.pau@citrix.com> Cc: Ian Jackson <Ian.Jackson@eu.citrix.com> Cc: Ian Campbell <ian.campbell@citrix.com> Acked-by: Ian Campbell <ian.campbell@citrix.com>
Roger Pau Monne [Thu, 19 Jun 2014 16:32:45 +0000 (18:32 +0200)]
configure: make the libaio test conditional on blktap{1, 2}
libaio is only required for blktap{1,2}, so make the check conditional
on whether the user has requested blktap{1,2} or not.
Signed-off-by: Roger Pau Monné <roger.pau@citrix.com> Cc: Ian Jackson <Ian.Jackson@eu.citrix.com> Cc: Ian Campbell <ian.campbell@citrix.com> Acked-by: Ian Campbell <ian.campbell@citrix.com>
[ ijc -- reran autogen.sh ]
Roger Pau Monne [Thu, 19 Jun 2014 16:32:44 +0000 (18:32 +0200)]
configure: set blktap2 availability on configure
blktap2 will be enabled by default on Linux systems only, also give
the oportunity to disable it from configure.
Remove the gate in the Makefile that only allows enabling blktap{1,2}
on Linux, since this is now done in a more flexible way on configure.
Signed-off-by: Roger Pau Monné <roger.pau@citrix.com> Cc: Ian Jackson <Ian.Jackson@eu.citrix.com> Cc: Ian Campbell <ian.campbell@citrix.com> Acked-by: Ian Campbell <ian.campbell@citrix.com>
[ ijc -- reran autogen.sh ]
Julien Grall [Thu, 19 Jun 2014 14:09:49 +0000 (15:09 +0100)]
xen/arm: Add some useful debug in coprocessor trapping
XSA-93 adds a couple of new functions to trap coprocessor registers. They
unconditionally inject an undefined instruction to guest.
When debugging an OS at early stage, it may be hard to know why the guest
received an UNDEFINED. Add some debug message to help the developer when Xen
is built in debug mode.
Signed-off-by: Julien Grall <julien.grall@linaro.org> Acked-by: Ian Campbell <ian.campbell@citrix.com>
Julien Grall [Thu, 19 Jun 2014 14:02:16 +0000 (15:02 +0100)]
xen/arm: Init traps very early
The function init_traps sets up the handler taken when Xen hits a
BUG_ON/ASSERT.
If an error happen before init_traps is called, we lose the backtrace.
When a trap is taken from HYP mode, we need to:
- get the processor ID, percpu has to be initialized and the
smp_processor_id correctly set.
- initialize current, even though it's not used for the time being. Move
the debug sanity earlier.
Andrew Cooper [Wed, 18 Jun 2014 17:18:37 +0000 (18:18 +0100)]
tools/libxc: Improve the *_FIELD() macros
The {GET,SET,MEMCPY,MEMSET_ARRAY}_FIELD() macros previously required
'dinfo->guest_width' to exist in scope, which is somewhat antisocial, and
makes them awkward to use in other contexts.
Update these macros to take guest width as a parameter, and in all cases pass
dinfo->guest_width.
Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com> CC: Ian Campbell <Ian.Campbell@citrix.com> CC: Ian Jackson <Ian.Jackson@eu.citrix.com> Acked-by: Ian Campbell <ian.campbell@citrix.com>
David Vrabel [Wed, 18 Jun 2014 16:12:54 +0000 (17:12 +0100)]
libxc, libxl, hvmloader: strip out outdated VM generation ID implementation
The VM generation ID support in libxc/libxl was based on a draft
specification which subsequently changed considerably. Remove much of
the code in anticipation of introducing something simpler that
conforms to the current specification from Microsoft.
Switch to using a HVM param (HVM_PARAM_VM_GENERATION_ID_ADDR) instead
of the hvmloader/generation-id-address XenStore key. This simplifies
save/restore since it only needs to transfer the value of this param.
There are no changes to the migration stream format or the public
libxl API.
Signed-off-by: David Vrabel <david.vrabel@citrix.com> Acked-by: Ian Campbell <ian.campbell@citrix.com>
[ ijc -- updated xc_nomigrate.c for interface change ]
David Vrabel [Wed, 18 Jun 2014 16:12:53 +0000 (17:12 +0100)]
hvm: add HVM_PARAM_VM_GENERATION_ID_ADDR
HVM_PARAM_VM_GENERATION_ID_ADDR is the guest physical address of the
VM Generation ID. This parameter will be written by hvmloader and read
by the toolstack when updating the gen. ID (e.g., after restoring from a
snapshot).
A HVM parameter is easier for the save/restore code to work with (than
a XenStore key).
Signed-off-by: David Vrabel <david.vrabel@citrix.com> Acked-by: Ian Campbell <ian.campbell@citrix.com> Acked-by: Jan Beulich <jbeulich@suse.com>
David Vrabel [Wed, 18 Jun 2014 16:12:52 +0000 (17:12 +0100)]
hvmloader: add helper functions to get/set HVM params
Signed-off-by: David Vrabel <david.vrabel@citrix.com> Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Acked-by: Ian Campbell <ian.campbell@citrix.com>
David Vrabel [Wed, 18 Jun 2014 16:12:50 +0000 (17:12 +0100)]
libxc: add xc_hvm_param_get/set() to get/set 64-bit values
HVMOP_get_param and HVMOP_set_param take a uint32_t for the parameter
index and a uint64_t for the value. So add xc_hvm_param_get() and
xc_hvm_param_set() that take the same types.
The existing xc_get_hvm_param() and xc_set_hvm_param() are retained
for compatibility but are deprecated.
Signed-off-by: David Vrabel <david.vrabel@citrix.com> Acked-by: Ian Campbell <ian.campbell@citrix.com>
[ ijc -- dropped one hunk against xen-access.c which didn't apply due to
intervening changes ]
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