Fix the decoding of iss_sf in disas_ld_lit.
The SF (Sixty-Four) field in the ISS (Instruction Specific Syndrome)
is a bit that specifies the width of the register that the
instruction loads to.
If cleared it specifies 32 bits.
If set it specifies 64 bits.
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Message-id: 1475230780-8669-1-git-send-email-edgar.iglesias@gmail.com
[PMM: tweaked phrasing per on-list discussion]
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
There was an error with some of the register implementation assuming
there are 16 priority queues supported when the IP only supports 8. This
patch corrects the registers to only support 8 queues.
Signed-off-by: Alistair Francis <alistair.francis@xilinx.com>
Reported-by: Paolo Bonzini <pbonzini@redhat.com>
Message-id: 33bf2d28326d22875602234b8b15cf56fb678333.1474911607.git.alistair.francis@xilinx.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Add a generic loader to QEMU which can be used to load images or set
memory values.
Internally inside QEMU this is a device. It is a strange device that
provides no hardware interface but allows QEMU to monkey patch memory
specified when it is created. To be able to do this it has a reset
callback that does the memory operations.
This device allows the user to monkey patch memory. To be able to do
this it needs a backend to manage the datas, the same as other
memory-related devices. In this case as the backend is so trivial we
have merged it with the frontend instead of creating and maintaining a
seperate backend.
Signed-off-by: Alistair Francis <alistair.francis@xilinx.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Acked-by: Markus Armbruster <armbru@redhat.com>
Message-id: 10f2a9dce5e5e11b6c6d959415b0ad6ee22bcba5.1475195078.git.alistair.francis@xilinx.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
If GIC ITS is supported, add description in ACPI MADT table, then guest
could use ITS when booting with ACPI.
Signed-off-by: Shannon Zhao <shannon.zhao@linaro.org>
Signed-off-by: Eric Auger <eric.auger@redhat.com>
Message-id: 1474616617-366-9-git-send-email-eric.auger@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
ACPI Spec 6.0 introduces GIC Interrupt Translation Service Structure.
Here we add the definition of the Structure.
Signed-off-by: Shannon Zhao <shannon.zhao@linaro.org>
Signed-off-by: Eric Auger <eric.auger@redhat.com>
Message-id: 1474616617-366-8-git-send-email-eric.auger@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
If supported by the configuration, ITS will be added automatically.
This patch also renames v2m_phandle to msi_phandle because it's now used
by both MSI implementations.
Signed-off-by: Pavel Fedin <p.fedin@samsung.com>
Signed-off-by: Eric Auger <eric.auger@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1474616617-366-7-git-send-email-eric.auger@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
The ITS control frame is in-kernel emulated while accesses to the
GITS_TRANSLATER are mediated through the KVM_SIGNAL_MSI ioctl (MSI
direct MSI injection advertised by the CAP_SIGNAL_MSI capability)
the kvm_gsi_direct_mapping is explicitly set to false to emphasize the
difference with GICv2M. Direct mapping cannot work with ITS since
the content of the MSI data is not the target interrupt ID but an
eventd id.
GSI routing is advertised (kvm_gsi_routing_allowed) as well as
msi/irqfd signaling (kvm_msi_via_irqfd_allowed).
The MSI frame (GITS_TRANSLATER) absolute GPA is computed on first
kvm_its_send_msi() call. It is then passed through KVM_SIGNAL_MSI
ioctl.
Signed-off-by: Pavel Fedin <p.fedin@samsung.com>
Signed-off-by: Eric Auger <eric.auger@redhat.com>
Message-id: 1474616617-366-6-git-send-email-eric.auger@redhat.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Introduce global kvm_msi_use_devid flag plus associated
kvm_msi_devid_required() macro. Passes the device ID,
if needed, while building the MSI route entry. Device IDs are
required by the ARM GICv3 ITS (IRQ remapping function is based on
this information).
Signed-off-by: Pavel Fedin <p.fedin@samsung.com>
Signed-off-by: Eric Auger <eric.auger@redhat.com>
Message-id: 1474616617-366-5-git-send-email-eric.auger@redhat.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Machine.c contains code related to migration. Let's move
gicv3_class_name to kvm_arm.h instead.
Signed-off-by: Eric Auger <eric.auger@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1474616617-366-4-git-send-email-eric.auger@redhat.com
Suggested-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This is the basic skeleton for both KVM and software-emulated ITS.
Since we already prepare status structure, we also introduce complete
VMState description. But, because we currently have no migratable
implementations, we also set unmigratable flag.
Signed-off-by: Pavel Fedin <p.fedin@samsung.com>
Signed-off-by: Eric Auger <eric.auger@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1474616617-366-3-git-send-email-eric.auger@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Advertise gsi routing and set up irqchip routing entries for
GIC SPIs.
This is not mandated as long as MSI routing is not used
(because the kernel sets a default irqchip routing table).
However once MSI routing gets used (for VIRTIO-PCI vhost for
example), the first call to KVM_SET_GSI_ROUTING overrides the
kernel default irqchip table.
If no routing entry exists for the GSI, any IRQFD signaling for
this GSI will fail.
Signed-off-by: Eric Auger <eric.auger@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1474616617-366-2-git-send-email-eric.auger@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Andrew Jones <drjones@redhat.com>
Message-id: 1474641676-25017-1-git-send-email-drjones@redhat.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
I'm now saving all 3 of the pll entries; only 2 were saved before.
There are a couple of times that were previously stored as offsets
from 'now' calculated before saving; with vmstate it's easier
to store the 'now' and fix it up on reload.
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Message-id: 1474977735-10156-3-git-send-email-dgilbert@redhat.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
I've converted the fields in it's main data structure
to fixed size types in ways that look sane.
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Message-id: 1474977735-10156-2-git-send-email-dgilbert@redhat.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Initialization of a class instance cannot depend on its own properties
as these are not yet set. Move parts of integratorcm_init() that depend
on the "memsz" property to the newly added integratorcm_realize().
This fixes: https://bugs.launchpad.net/qemu/+bug/1624726
Signed-off-by: Jakub Jermar <jakub@jermar.eu>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Add missed out mappings. These mappings are from the "Intel PXA27x
Processor Developer's Kit User Guide".
Signed-off-by: Vijay Kumar B. <vijaykumar@zilogic.com>
Reviewed-by: Deepak S. <deepak@zilogic.com>
Message-id: 1475063033-8176-3-git-send-email-vijaykumar@zilogic.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
According to the manual the (5, 5) corresponds to backspace key, and
not Enter key. Linux kernel maps (5, 4) to the enter key. Fixing it up
to match the mapping in the Linux kernel.
Signed-off-by: Vijay Kumar B. <vijaykumar@zilogic.com>
Reviewed-by: Deepak S. <deepak@zilogic.com>
Message-id: 1475063033-8176-2-git-send-email-vijaykumar@zilogic.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Add Alistair Francis as the maintainer for the Netduino 2
and SMM32F205 SoC.
Signed-off-by: Alistair Francis <alistair@alistair23.me>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Message-id: 5a46ccf398b050a41cc3b3d0e94bcff4ce2d85e0.1474742262.git.alistair@alistair23.me
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Add the STM32F2xx ADC device. This device randomly
generates values on each read.
This also includes creating a hw/adc directory.
Signed-off-by: Alistair Francis <alistair@alistair23.me>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 3240e660adaf537f55a63ce06096e844aece8cda.1474742262.git.alistair@alistair23.me
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
If correctly configured allow the STM32F2xx timer to print
out the PWM duty cycle information.
Signed-off-by: Alistair Francis <alistair@alistair23.me>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Message-id: cdb59039a25e061615713a94b40797baa12ea9f9.1474742262.git.alistair@alistair23.me
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Cleanup the individual DeviceState and SysBusDevice
variables to re-use the same variable for each
device.
Signed-off-by: Alistair Francis <alistair@alistair23.me>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Message-id: fc5d75a57d320b69704df2c1146ff0fd482e4a88.1474742262.git.alistair@alistair23.me
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Fix for a XSAVE regression when using "-cpu host", and a fix on
the Opteron_G3 CPU model.
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Merge remote-tracking branch 'remotes/ehabkost/tags/x86-pull-request' into staging
x86 bug fixes
Fix for a XSAVE regression when using "-cpu host", and a fix on
the Opteron_G3 CPU model.
# gpg: Signature made Mon 03 Oct 2016 20:08:13 BST
# gpg: using RSA key 0x2807936F984DC5A6
# gpg: Good signature from "Eduardo Habkost <ehabkost@redhat.com>"
# Primary key fingerprint: 5A32 2FD5 ABC4 D3DB ACCF D1AA 2807 936F 984D C5A6
* remotes/ehabkost/tags/x86-pull-request:
target-i386: Correct family/model/stepping for Opteron_G3
target-i386: Report known CPUID[EAX=0xD,ECX=0]:EAX bits as migratable
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Version: GnuPG v2
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Merge remote-tracking branch 'remotes/famz/tags/for-upstream' into staging
# gpg: Signature made Sun 02 Oct 2016 02:49:58 BST
# gpg: using RSA key 0xCA35624C6A9171C6
# gpg: Good signature from "Fam Zheng <famz@redhat.com>"
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg: There is no indication that the signature belongs to the owner.
# Primary key fingerprint: 5003 7CB7 9706 0F76 F021 AD56 CA35 624C 6A91 71C6
* remotes/famz/tags/for-upstream:
docker: Build in a clean directory
smbios: fix uuid copy
xenpv: Fix qemu_uuid compiling error
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
When qemu is being killed, its last words are:
2016-08-31T11:48:15.293587Z qemu-system-x86_64: terminating on signal 15 from pid 11180
That's nice, but what process is 11180? What if I told you we can
do better:
2016-08-31T11:48:15.293587Z qemu-system-x86_64: terminating on signal 15 from pid 11180 (/usr/sbin/libvirtd)
And that's exactly what this patch does.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Message-Id: <a2ba85a8e349a0ea9ee06424226197a03cd04bd3.1474987617.git.mprivozn@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This is a small helper that tries to fetch binary name for given
PID.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Message-Id: <4d75d475c1884f8e94ee8b1e57273ddf3ed68bf7.1474987617.git.mprivozn@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
In commit ac1b84dd1 (rhbz#1027181), a check was added to only update the
"read handler" when the front-end is opened, because the read callbacks
were not restored when a device is plugged. However, this seems not
correct, the handler is correctly set back on hotplug (in
virtconsole_realize) and the bug can no longer be reproduced.
Calling chr_update_read_handler() allows to fix the mux driver to stop
calling the child handlers (which may be going to be destroyed).
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20161003094704.18087-2-marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
mux_chr_update_read_handler() is adding a new mux_cnt each time
mux_chr_update_read_handler() is called, it's not possible to actually
update the "child" chr callbacks that were set previously. This may lead
to crashes if the "child" chr is destroyed:
valgrind x86_64-softmmu/qemu-system-x86_64 -chardev
stdio,mux=on,id=char0 -mon chardev=char0,mode=control,default
when quitting:
==4306== Invalid read of size 8
==4306== at 0x8061D3: json_lexer_destroy (json-lexer.c:385)
==4306== by 0x7E39F8: json_message_parser_destroy (json-streamer.c:134)
==4306== by 0x3447F6: monitor_qmp_event (monitor.c:3908)
==4306== by 0x480153: mux_chr_send_event (qemu-char.c:630)
==4306== by 0x480694: mux_chr_event (qemu-char.c:734)
==4306== by 0x47F1E9: qemu_chr_be_event (qemu-char.c:205)
==4306== by 0x481207: fd_chr_close (qemu-char.c:1114)
==4306== by 0x481659: qemu_chr_close_stdio (qemu-char.c:1221)
==4306== by 0x486F07: qemu_chr_free (qemu-char.c:4146)
==4306== by 0x486F97: qemu_chr_delete (qemu-char.c:4154)
==4306== by 0x487E66: qemu_chr_cleanup (qemu-char.c:4678)
==4306== by 0x495A98: main (vl.c:4675)
==4306== Address 0x28439e90 is 112 bytes inside a block of size 240 free'd
==4306== at 0x4C2CD5A: free (vg_replace_malloc.c:530)
==4306== by 0x1E4CBF2D: g_free (in /usr/lib64/libglib-2.0.so.0.4800.2)
==4306== by 0x344DE9: monitor_cleanup (monitor.c:4058)
==4306== by 0x495A93: main (vl.c:4674)
==4306== Block was alloc'd at
==4306== at 0x4C2BBAD: malloc (vg_replace_malloc.c:299)
==4306== by 0x1E4CBE18: g_malloc (in /usr/lib64/libglib-2.0.so.0.4800.2)
==4306== by 0x344BF8: monitor_init (monitor.c:4021)
==4306== by 0x49063C: mon_init_func (vl.c:2417)
==4306== by 0x7FC6DE: qemu_opts_foreach (qemu-option.c:1116)
==4306== by 0x4954E0: main (vl.c:4473)
Instead, keep the "child" chr associated with a particular idx so its
handlers can be updated and removed to avoid the crash.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20161003094704.18087-3-marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
As it seems easy to break the ThreadSanitizer build we should defend it to
ensure that fixes get applied when it breaks. We use the Ubuntu GCC PPA
to get the latest GCC goodness.
As we need to use the -fuse-ld=gold work around we have to disable the
linux-user targets as these trip up the linker.
The make check run is also disabled for Travis but this can be
re-enabled once the check targets have been fixed.
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20160930213106.20186-13-alex.bennee@linaro.org>
The guest client's use of the glib's g_atomic primitives causes newer
GCC's to barf when built on Travis. As QEMU has its own primitives with
well understood semantics we might as well use them.
The use of atomics was a little inconsistent so I've also ensure the
values are correctly set with atomic primitives at the same time.
I also made the usage of bool consistent while I was at it.
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20160930213106.20186-12-alex.bennee@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
There is a potential race if several threads exit at once. To serialise
the exits extend the lock above the initial checking of the CPU list.
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20160930213106.20186-11-alex.bennee@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
ThreadSanitizer detects a possible race between reading/writing the
hashes. The ordering semantics are already documented for QHT however
for true C11 compliance we should use relaxed atomic primitives for
accesses that are done across threads. On x86 this slightly changes to
the code to not do a load/compare in a single instruction leading to a
slight performance degradation.
Running 'taskset -c 0 tests/qht-bench -n 1 -d 10' (i.e. all lookups) 10
times, we get:
before the patch:
$ ./mean.pl 34.04 34.24 34.38 34.25 34.18 34.51 34.46 34.44 34.29 34.08
34.287 +- 0.160072900059109
after:
$ ./mean.pl 33.94 34.00 33.52 33.46 33.55 33.71 34.27 34.06 34.28 34.58
33.937 +- 0.374731014640279
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Emilio G. Cota <cota@braap.org>
Message-Id: <20160930213106.20186-10-alex.bennee@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
ThreadSanitizer picks up potential races although we already use
barriers to ensure things are in the correct order when processing exit
requests. For true C11 defined behaviour across threads we need to use
relaxed atomic_set/atomic_read semantics to reassure tsan.
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20160930213106.20186-9-alex.bennee@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
The ThreadSanitizer rightly complains that something initialised with a
normal access is later updated and read atomically.
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20160930213106.20186-8-alex.bennee@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
The idiom CPU_GET_CLASS(cpu) is fairly extensively used in various
threads and trips of ThreadSanitizer due to the fact it updates
obj->class->object_cast_cache behind the scenes. As this is just a
fast-path cache there is no need to lock updates.
However to ensure defined C11 behaviour across threads we need to use
the plain atomic_read/set primitives and keep the sanitizer happy.
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20160930213106.20186-7-alex.bennee@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
There is a data race if the sequence is written concurrently to the
read. In C11 this has undefined behavior. Use atomic_set; the
read side is already using atomic_read.
Reported-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20160930213106.20186-6-alex.bennee@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This is to appease sanitizer builds which complain that:
"error: control reaches end of non-void function"
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20160930213106.20186-5-alex.bennee@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Add some notes on the use of the relaxed atomic access helpers and their
importance for defined behaviour in C11's multi-threaded memory model.
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20160930213106.20186-3-alex.bennee@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Only very modern GCC's actually set this define when building with the
ThreadSanitizer so this little typo slipped though.
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20160930213106.20186-2-alex.bennee@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
We have to change the vmstate version due to changes in statistics counters.
Signed-off-by: Hervé Poussineau <hpoussin@reactos.org>
Message-Id: <1474921408-24710-5-git-send-email-hpoussin@reactos.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This interface will be used by HMP commands 'info irq' and 'info pic'.
Signed-off-by: Hervé Poussineau <hpoussin@reactos.org>
Message-Id: <1474921408-24710-2-git-send-email-hpoussin@reactos.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
