During wrap around and reset, queues are pointing to initial base
address of queue 0, irrespective of what queue we are dealing with.
Fix it by assigning proper base address every time.
Signed-off-by: Sai Pavan Boddu <sai.pavan.boddu@xilinx.com>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Enabling debug breaks the build, Fix them and make debug statements
always compilable. Fix few statements to use sized integer casting.
Signed-off-by: Sai Pavan Boddu <sai.pavan.boddu@xilinx.com>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Log with GUEST_ERROR what the guest is doing wrong.
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Bit #14 is "DE" for 'Descriptor Error':
When set, indicates a frame truncation caused by a frame
that does not fit within the current descriptor buffers,
and that the 21143 does not own the next descriptor.
[Table 4-1. RDES0 Bit Fields Description]
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Jason Wang <jasowang@redhat.com>
The tulip network driver in a qemu-system-hppa emulation is broken in
the sense that bigger network packages aren't received any longer and
thus even running e.g. "apt update" inside the VM fails.
The breakage was introduced by commit 8ffb7265af ("check frame size and
r/w data length") which added checks to prevent accesses outside of the
rx/tx buffers.
But the new checks were implemented wrong. The variable rx_frame_len
counts backwards, from rx_frame_size down to zero, and the variable len
is never bigger than rx_frame_len, so accesses just can't happen and the
checks are unnecessary.
On the contrary the checks now prevented bigger packages to be moved
into the rx buffers.
This patch reverts the wrong checks and were sucessfully tested with a
qemu-system-hppa emulation.
Fixes: 8ffb7265af ("check frame size and r/w data length")
Buglink: https://bugs.launchpad.net/bugs/1874539
Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Removal of duplicated RSC definitions. Changing names of the
fields to ones defined in the Linux header.
Signed-off-by: Yuri Benditovich <yuri.benditovich@daynix.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Save and restore RSS/hash report configuration.
Signed-off-by: Yuri Benditovich <yuri.benditovich@daynix.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Similar to VMSTATE_VARRAY_UINT32_ALLOC, but the size is
16-bit field.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Yuri Benditovich <yuri.benditovich@daynix.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Suggest VIRTIO_NET_F_HASH_REPORT if specified in device
parameters.
If the VIRTIO_NET_F_HASH_REPORT is set,
the device extends configuration space. If the feature
is negotiated, the packet layout is extended to
accomodate the hash information. In this case deliver
packet's hash value and report type in virtio header
extension.
Use for configuration the same procedure as already
used for RSS. We add two fields in rss_data that
controls what the device does with the calculated hash
if rss_data.enabled is set. If field 'populate' is set
the hash is set in the packet, if field 'redirect' is
set the hash is used to decide the queue to place the
packet to.
Signed-off-by: Yuri Benditovich <yuri.benditovich@daynix.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
If VIRTIO_NET_F_RSS negotiated and RSS is enabled, process
incoming packets, calculate packet's hash and place the
packet into respective RX virtqueue.
Signed-off-by: Yuri Benditovich <yuri.benditovich@daynix.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
On aarch64, gcc 9.3 is generating
qemu/exec.c: In function ‘address_space_translate_iommu’:
qemu/exec.c:431:28: note: parameter passing for argument of type \
‘MemTxAttrs’ {aka ‘struct MemTxAttrs’} changed in GCC 9.1
and many other repetitions. This structure, and the functions
amongst which it is passed, are not part of a QEMU public API.
Therefore we do not care how the compiler passes the argument,
so long as the compiler is self-consistent.
The only portion of QEMU which does have a public api, and so
must have a stable abi, is "qemu/plugin.h". We test this by
forcing -Wpsabi in tests/plugin/Makefile.
Buglink: https://bugs.launchpad.net/qemu/+bug/1881552
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20200617201309.1640952-6-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Clang 10 enables this by default with -Wtype-limit.
All of the instances flagged by this Werror so far have been
cases in which we really do want the compiler to optimize away
the test completely. Disabling the warning will avoid having
to add ifdefs to work around this.
Cc: Eric Blake <eblake@redhat.com>
Buglink: https://bugs.launchpad.net/qemu/+bug/1878628
Acked-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20200617201309.1640952-5-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Use a helper function to tidy the assembly of gcc_flags.
Separate flags that disable warnings from those that enable,
and sort the disable warnings to the end.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20200617201309.1640952-4-richard.henderson@linaro.org
Suggested-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
It's reported an error of implicit conversion from "unsigned long" to
"double" when compiling with Clang 10. Simply make the encoding rate 0
when the encoded_size is 0.
Fixes: e460a4b1a4
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reported-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Wei Wang <wei.w.wang@intel.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20200617201309.1640952-3-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
When building with clang version 10.0.0-4ubuntu1, we get:
CC lm32-softmmu/fpu/softfloat.o
fpu/softfloat.c:3365:13: error: bitwise negation of a boolean expression; did you mean logical negation? [-Werror,-Wbool-operation]
absZ &= ~ ( ( ( roundBits ^ 0x40 ) == 0 ) & roundNearestEven );
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
fpu/softfloat.c:3423:18: error: bitwise negation of a boolean expression; did you mean logical negation? [-Werror,-Wbool-operation]
absZ0 &= ~ ( ( (uint64_t) ( absZ1<<1 ) == 0 ) & roundNearestEven );
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
...
fpu/softfloat.c:4273:18: error: bitwise negation of a boolean expression; did you mean logical negation? [-Werror,-Wbool-operation]
zSig1 &= ~ ( ( zSig2 + zSig2 == 0 ) & roundNearestEven );
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Fix by rewriting the fishy bitwise AND of two bools as an int.
Suggested-by: Eric Blake <eblake@redhat.com>
Buglink: https://bugs.launchpad.net/bugs/1881004
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20200617201309.1640952-2-richard.henderson@linaro.org
Message-Id: <20200528155420.9802-1-philmd@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Place virtio-mmio devices near the other mmio regions,
next ioapic is at @ 0xfec00000.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Paul Durrant <paul@xen.org>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Message-id: 20200529073957.8018-5-kraxel@redhat.com
Move from X86MachineClass to PCMachineClass so it disappears
from microvm machine type property list.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Paul Durrant <paul@xen.org>
Message-id: 20200529073957.8018-4-kraxel@redhat.com
Not useful for microvm and allows users to shoot themself
into the foot (make ram + mmio overlap).
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Message-id: 20200529073957.8018-3-kraxel@redhat.com
Looks like the logic was copied over from q35.
q35 does this for backward compatibility, there is no reason to do this
on microvm though. Also microvm doesn't need much mmio space, 1G is
more than enough. Using an mmio window smaller than 1G is bad for
gigabyte alignment and hugepages though. So split @ 3G unconditionally.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Message-id: 20200529073957.8018-2-kraxel@redhat.com
libusb seems to no allways call the completion callback for requests
canceled (which it is supposed to do according to the docs). So add
a limit to avoid qemu waiting forever.
Tested-by: BALATON Zoltan <balaton@eik.bme.hu>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Message-Id: <20200529072225.3195-1-kraxel@redhat.com>
The new property allows to specify usb host device name. Uses standard
qemu_open(), so both file system path (/dev/bus/usb/$bus/$dev on linux)
and file descriptor passing can be used.
Requires libusb 1.0.23 or newer. The hostdevice property is only
present in case qemu is compiled against a new enough library version,
so the presence of the property can be used for feature detection.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Message-Id: <20200605125952.13113-1-kraxel@redhat.com>
When we make changes to the TCG we sometimes cause regressions that
are deep into the execution cycle of the guest. Debugging this often
requires comparing large volumes of trace information to figure out
where behaviour has diverged.
The lockstep plugin utilises a shared socket so two QEMU's running
with the plugin will write their current execution position and wait
to receive the position of their partner process. When execution
diverges the plugins output where they were and the previous few
blocks before unloading themselves and letting execution continue.
Originally I planned for this to be most useful with -icount but it
turns out you can get divergence pretty quickly due to asynchronous
qemu_cpu_kick_rr_cpus() events causing one side to eventually run into
a short block a few cycles before the other side. For this reason I've
added a bit of tracking and I think the divergence reporting could be
finessed to report only if we really start to diverge in execution.
An example run would be:
qemu-system-sparc -monitor none -parallel none -net none \
-M SS-20 -m 256 -kernel day11/zImage.elf \
-plugin ./tests/plugin/liblockstep.so,arg=lockstep-sparc.sock \
-d plugin,nochain
with an identical command in another window in the same working
directory.
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Robert Foley <robert.foley@linaro.org>
Tested-by: Robert Foley <robert.foley@linaro.org>
Cc: Richard Henderson <richard.henderson@linaro.org>
Cc: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Message-Id: <20200610155509.12850-3-alex.bennee@linaro.org>
The check-tcg plugins build was failing because some special case
tests that needed -cpu max failed because the plugin variant hadn't
carried across the QEMU_OPTS tweak.
Guests which globally set QEMU_OPTS=-cpu FOO where unaffected.
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20200615141922.18829-3-alex.bennee@linaro.org>
If you jump back and forth between branches while developing plugins
you end up debugging failures caused by plugins left in the build
directory. Fix this by basing plugins on the source tree instead.
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20200615141922.18829-2-alex.bennee@linaro.org>
We do this on our other platforms to make it easier to see what has
broken.
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Li-Wen Hsu <lwhsu@FreeBSD.org>
Message-Id: <20200612190237.30436-19-alex.bennee@linaro.org>
Disable a few tests under CONFIG_TSAN, which
run into a known TSan issue that results in a hang.
https://github.com/google/sanitizers/issues/1116
The disabled tests under TSan include all the qtests as well as
the test-char, test-qga, and test-qdev-global-props.
Signed-off-by: Robert Foley <robert.foley@linaro.org>
Reviewed-by: Emilio G. Cota <cota@braap.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20200609200738.445-14-robert.foley@linaro.org>
Message-Id: <20200612190237.30436-17-alex.bennee@linaro.org>
Adds TSan details to testing.rst.
This includes background and reference details on TSan,
and details on how to build and test with TSan
both with and without docker.
Signed-off-by: Robert Foley <robert.foley@linaro.org>
Reviewed-by: Emilio G. Cota <cota@braap.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20200609200738.445-13-robert.foley@linaro.org>
Message-Id: <20200612190237.30436-16-alex.bennee@linaro.org>
This allows us to see the name of the thread in tsan
warning reports such as this:
Thread T7 'CPU 1/TCG' (tid=24317, running) created by main thread at:
Signed-off-by: Robert Foley <robert.foley@linaro.org>
Reviewed-by: Emilio G. Cota <cota@braap.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20200609200738.445-12-robert.foley@linaro.org>
Message-Id: <20200612190237.30436-15-alex.bennee@linaro.org>
These annotations will allow us to give tsan
additional hints. For example, we can inform
tsan about reads/writes to ignore to silence certain
classes of warnings.
We can also annotate threads so that the proper thread
naming shows up in tsan warning results.
Signed-off-by: Robert Foley <robert.foley@linaro.org>
Reviewed-by: Emilio G. Cota <cota@braap.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20200609200738.445-11-robert.foley@linaro.org>
Message-Id: <20200612190237.30436-14-alex.bennee@linaro.org>
Added a new docker for ubuntu 20.04.
This docker has support for Thread Sanitizer
including one patch we need in one of the header files.
https://github.com/llvm/llvm-project/commit/a72dc86cd
This command will build with tsan enabled:
make docker-test-tsan-ubuntu2004 V=1
Also added the TSAN suppresion file to disable certain
cases of TSAN warnings.
Cc: Fam Zheng <fam@euphon.net>
Cc: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Robert Foley <robert.foley@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20200609200738.445-10-robert.foley@linaro.org>
Message-Id: <20200612190237.30436-13-alex.bennee@linaro.org>
The radix tree is append-only, but we can fail to insert
a PageDesc if the insertion races with another thread.
Signed-off-by: Emilio G. Cota <cota@braap.org>
Signed-off-by: Robert Foley <robert.foley@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20200609200738.445-8-robert.foley@linaro.org>
Message-Id: <20200612190237.30436-11-alex.bennee@linaro.org>
I was after adding qemu_spin_destroy calls, but while at
it I noticed that we are leaking some memory.
Signed-off-by: Emilio G. Cota <cota@braap.org>
Signed-off-by: Robert Foley <robert.foley@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20200609200738.445-5-robert.foley@linaro.org>
Message-Id: <20200612190237.30436-8-alex.bennee@linaro.org>
It will be used for TSAN annotations.
Signed-off-by: Emilio G. Cota <cota@braap.org>
Signed-off-by: Robert Foley <robert.foley@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20200609200738.445-4-robert.foley@linaro.org>
Message-Id: <20200612190237.30436-7-alex.bennee@linaro.org>
We convert queued work to a QSIMPLEQ, instead of
open-coding it.
While at it, make sure that all accesses to the list are
performed while holding the list's lock.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Emilio G. Cota <cota@braap.org>
Signed-off-by: Robert Foley <robert.foley@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20200609200738.445-3-robert.foley@linaro.org>
Message-Id: <20200612190237.30436-6-alex.bennee@linaro.org>
We tried running QEMU under tsan in 2016, but tsan's lack of support for
longjmp-based fibers was a blocker:
https://groups.google.com/forum/#!topic/thread-sanitizer/se0YuzfWazw
Fortunately, thread sanitizer gained fiber support in early 2019:
https://reviews.llvm.org/D54889
This patch brings tsan support upstream by importing the patch that annotated
QEMU's coroutines as tsan fibers in Android's QEMU fork:
https://android-review.googlesource.com/c/platform/external/qemu/+/844675
Tested with '--enable-tsan --cc=clang-9 --cxx=clang++-9 --disable-werror'
configure flags.
Signed-off-by: Lingfeng Yang <lfy@google.com>
Signed-off-by: Emilio G. Cota <cota@braap.org>
[cota: minor modifications + configure changes]
Signed-off-by: Robert Foley <robert.foley@linaro.org>
[RF: configure changes, coroutine fix + minor modifications]
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20200609200738.445-2-robert.foley@linaro.org>
Message-Id: <20200612190237.30436-5-alex.bennee@linaro.org>
dtc submodule update, now call the libfdt target from the new
dtc Makefile, which has been changed to not require bison, flex, etc.
This removes warnings during the build.
scripts/ symlink and tests directory creation are not necessary,
and neither is calling the clean rule explicitly.
Signed-off-by: Claudio Fontana <cfontana@suse.de>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20200518160319.18861-2-cfontana@suse.de>
Message-Id: <20200612190237.30436-3-alex.bennee@linaro.org>
We should be keeping this up to date as Fedora goes out of support
quite quickly.
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20200612190237.30436-2-alex.bennee@linaro.org>
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Merge remote-tracking branch 'remotes/armbru/tags/pull-qom-2020-06-15' into staging
QOM patches for 2020-06-15
# gpg: Signature made Mon 15 Jun 2020 21:07:19 BST
# gpg: using RSA key 354BC8B3D7EB2A6B68674E5F3870B400EB918653
# gpg: issuer "armbru@redhat.com"
# gpg: Good signature from "Markus Armbruster <armbru@redhat.com>" [full]
# gpg: aka "Markus Armbruster <armbru@pond.sub.org>" [full]
# Primary key fingerprint: 354B C8B3 D7EB 2A6B 6867 4E5F 3870 B400 EB91 8653
* remotes/armbru/tags/pull-qom-2020-06-15: (84 commits)
MAINTAINERS: Make section QOM cover hw/core/*bus.c as well
qdev: qdev_init_nofail() is now unused, drop
qdev: Convert bus-less devices to qdev_realize() with Coccinelle
qdev: Use qdev_realize() in qdev_device_add()
qdev: Make qdev_realize() support bus-less devices
s390x/event-facility: Simplify creation of SCLP event devices
microbit: Eliminate two local variables in microbit_init()
sysbus: sysbus_init_child_obj() is now unused, drop
sysbus: Convert qdev_set_parent_bus() use with Coccinelle, part 4
sysbus: Convert qdev_set_parent_bus() use with Coccinelle, part 3
sysbus: Convert qdev_set_parent_bus() use with Coccinelle, part 2
sysbus: Convert qdev_set_parent_bus() use with Coccinelle, part 1
qdev: Drop qdev_realize() support for null bus
sysbus: Convert to sysbus_realize() etc. with Coccinelle
sysbus: New sysbus_realize(), sysbus_realize_and_unref()
sysbus: Tidy up sysbus_init_child_obj()'s @childsize arg, part 2
hw/arm/armsse: Pass correct child size to sysbus_init_child_obj()
sysbus: Tidy up sysbus_init_child_obj()'s @childsize arg, part 1
microbit: Tidy up sysbus_init_child_obj() @child argument
sysbus: Drop useless OBJECT() in sysbus_init_child_obj() calls
...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
