Add helpers:
* sub64_ssov: subs two 64 bit values and saturates the result.
* subr_h/_ssov: subs two halfwords from two words in q-format with rounding
/ and saturates each result independetly.
Add microcode generator:
* gen_sub64_d: adds two 64 bit values.
* gen_msub_h/s_h: multiply four halfwords, sub each result left justfied
from two word values / and saturate each result.
* gen_msubm_h/s_h: multiply four halfwords, sub each result left justfied
from two words values in q-format / and saturate each
result.
* gen_msubr32/64_h/s_h: multiply four halfwords, sub each result left
justfied from two halftwords/words values in q-format
/ and saturate each result.
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
* remotes/kvaneesh/for-upstream:
virtio: Fix memory leaks reported by Coverity
virtfs-proxy: Fix possible overflow
fsdev/virtfs-proxy-helper: Fix improper use of negative value
hw/9pfs/virtio-9p-posix-acl: Fix out-of-bounds access
9pfs-proxy: tiny cleanups in proxy_pwritev and proxy_preadv
9pfs-local: simplify/optimize local_mapped_attr_path()
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
- handle TOD clock during migration
- CPACF key wrap options
- limit amount of pci device code we build
- ensure big endian accesses for ccws
- various fixes and cleanups
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Merge remote-tracking branch 'remotes/cohuck/tags/s390x-20150316' into staging
Final batch of s390x enhancements/fixes for 2.3:
- handle TOD clock during migration
- CPACF key wrap options
- limit amount of pci device code we build
- ensure big endian accesses for ccws
- various fixes and cleanups
# gpg: Signature made Mon Mar 16 10:01:44 2015 GMT using RSA key ID C6F02FAF
# gpg: Good signature from "Cornelia Huck <huckc@linux.vnet.ibm.com>"
# gpg: aka "Cornelia Huck <cornelia.huck@de.ibm.com>"
* remotes/cohuck/tags/s390x-20150316:
s390x/config: Do not include full pci.mak
s390x/pci: fix length in sei_nt2 event
s390x/ipl: remove dead code
s390x/virtio-bus: Remove unused function s390_virtio_bus_console()
s390x: CPACF: Handle key wrap machine options
s390x/kvm: make use of generic vm attribute check
kvm: encapsulate HAS_DEVICE for vm attrs
virtio-ccw: assure BE accesses
s390x/kvm: Guest Migration TOD clock synchronization
s390x: Replace unchecked qdev_init() by qdev_init_nofail()
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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Merge remote-tracking branch 'remotes/rth/tags/tcg-pull-20150313' into staging
Pool TCG data, and ALWAYS/NEVER fix
# gpg: Signature made Fri Mar 13 20:09:09 2015 GMT using RSA key ID 4DD0279B
# gpg: Good signature from "Richard Henderson <rth7680@gmail.com>"
# gpg: aka "Richard Henderson <rth@redhat.com>"
# gpg: aka "Richard Henderson <rth@twiddle.net>"
* remotes/rth/tags/tcg-pull-20150313:
tcg: Complete handling of ALWAYS and NEVER
tcg: Use tcg_malloc to allocate TCGLabel
tcg: Change generator-side labels to a pointer
tcg: Change translator-side labels to a pointer
tcg-ia64: Use tcg_malloc to allocate TCGLabelQemuLdst
tcg: Use tcg_malloc to allocate TCGLabelQemuLdst
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
pci.mak includes a lot of devices - and most of them do not make
sense on s390x, like USB controllers or audio cards. These devices
also show up when running "qemu-system-s390x -device help" and thus
could raise the hope for the users that they could use these kind
of devices with qemu-system-s390x. To avoid this confusion, we
should not include pci.mak and rather include the bare minimum
manually instead.
Signed-off-by: Thomas Huth <thuth@linux.vnet.ibm.com>
Acked-by: Frank Blaschka <blaschka@linux.vnet.ibm.com>
Message-Id: <1426169954-6062-1-git-send-email-thuth@linux.vnet.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
The sei_nt2 event must contain the length of the event.
Signed-off-by: Frank Blaschka <blaschka@linux.vnet.ibm.com>
Signed-off-by: Jens Freimann <jfrei@linux.vnet.ibm.com>
Message-Id: <1426164834-38648-7-git-send-email-jfrei@linux.vnet.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
load_image_targphys already checks the max size and will return
an error code. So the follow-on check will never trigger.
Signed-off-by: Dominik Dingel <dingel@linux.vnet.ibm.com>
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Reviewed-by: Thomas Huth <thuth@linux.vnet.ibm.com>
Signed-off-by: Jens Freimann <jfrei@linux.vnet.ibm.com>
Message-Id: <1426164834-38648-6-git-send-email-jfrei@linux.vnet.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
The function s390_virtio_bus_console() is completely unused and thus
can be removed safely.
Signed-off-by: Thomas Huth <thuth@linux.vnet.ibm.com>
Reviewed-by: Jens Freimann <jfrei@linux.vnet.ibm.com>
Signed-off-by: Jens Freimann <jfrei@linux.vnet.ibm.com>
Message-Id: <1426164834-38648-5-git-send-email-jfrei@linux.vnet.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Check for the aes_key_wrap and dea_key_wrap machine options and set the
appropriate KVM device attribute(s) to tell the kernel to enable or disable
the AES/DEA protected key functions for the guest domain.
This patch introduces two new machine options for indicating the state of
AES/DEA key wrapping functions. This controls whether the guest will
have access to the AES/DEA crypto functions.
aes_key_wrap="on | off" is changed to aes-key-wrap="on | off"
dea_key_wrap="on | off" is changed to dea-key-wrap="on | off"
Check for the aes-key-wrap and dea-key-wrap machine options and set the
appropriate KVM device attribute(s) to tell the kernel to enable or disable
the AES/DEA protected key functions for the guest domain.
Reviewed-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Signed-off-by: Tony Krowiak <akrowiak@linux.vnet.ibm.com>
Signed-off-by: Jens Freimann <jfrei@linux.vnet.ibm.com>
Message-Id: <1426164834-38648-4-git-send-email-jfrei@linux.vnet.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
By using the new introduced generic interface we
can remove redundancies and clean up.
Reviewed-by: Thomas Huth <thuth@linux.vnet.ibm.com>
Suggested-by: Thomas Huth <thuth@linux.vnet.ibm.com>
Signed-off-by: Dominik Dingel <dingel@linux.vnet.ibm.com>
Signed-off-by: Jens Freimann <jfrei@linux.vnet.ibm.com>
Message-Id: <1426164834-38648-3-git-send-email-jfrei@linux.vnet.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
More and more virtual machine specifics between kvm and qemu will be
transferred with vm attributes.
So we encapsulate the common logic in a generic function.
Additionally we need only to check during initialization if kvm supports
virtual machine attributes.
Cc: Paolo Bonzini <pbonzini@redhat.com>
Suggested-by: Thomas Huth <thuth@linux.vnet.ibm.com>
Reviewed-by: Thomas Huth <thuth@linux.vnet.ibm.com>
Signed-off-by: Dominik Dingel <dingel@linux.vnet.ibm.com>
Signed-off-by: Jens Freimann <jfrei@linux.vnet.ibm.com>
Message-Id: <1426164834-38648-2-git-send-email-jfrei@linux.vnet.ibm.com>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
All fields in structures transmitted by ccws are big endian; assure
we handle them as such.
Reviewed-by: Thomas Huth <thuth@linux.vnet.ibm.com>
Reviewed-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Message-Id: <1426067871-17693-2-git-send-email-cornelia.huck@de.ibm.com>
Synchronizes the guest TOD clock across a migration by sending the guest TOD
clock value to the destination system. If the guest TOD clock is not preserved
across a migration then the guest's view of time will snap backwards if the
destination host clock is behind the source host clock. This will cause the
guest to hang immediately upon resuming on the destination system.
Reviewed-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Signed-off-by: Jason J. Herne <jjherne@linux.vnet.ibm.com>
Signed-off-by: Jens Freimann <jfrei@linux.vnet.ibm.com>
Message-Id: <1425912968-54387-1-git-send-email-jfrei@linux.vnet.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
s390_flic_init() is a helper to create and realize either
"s390-flic-kvm" or "s390-flic-qemu". When qdev_init() fails, it
complains to stderr and succeeds.
Except it can't actually fail, because the "s390-flic-qemu" is a dummy
without a realize method, and "s390-flic-kvm"'s realize can't fail,
even when the kernel device is really unavailable. Odd.
Replace qdev_init() by qdev_init_nofail() to make "can't fail" locally
obvious, and get rid of the unreachable error reporting.
Cc: Christian Borntraeger <borntraeger@de.ibm.com>
Cc: Cornelia Huck <cornelia.huck@de.ibm.com>
Cc: Alexander Graf <agraf@suse.de>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Message-Id: <1423128889-18260-4-git-send-email-armbru@redhat.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Carries two bugfixes and support for multiple pci root buses.
git shortlog rel-1.8.0..rel-1.8.1
=================================
Ameya Palande (1):
x86: add barrier to read{b,w,l} and write{b,w,l} functions
Kevin O'Connor (1):
smp: Fix smp race introduced in 0673b787
Marcel Apfelbaum (2):
fw/pci: scan all buses if extraroots romfile is present
fw/pci: map memory and IO regions for multiple pci root buses
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
All four leaks are similar, so fix them in one patch.
Success path was not doing memory free.
Signed-off-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
It's detected by coverity. The socket name specified
should fit in the sockadd_un.sun_path. If not abort.
Signed-off-by: Shannon Zhao <zhaoshenglong@huawei.com>
Signed-off-by: Shannon Zhao <shannon.zhao@linaro.org>
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Pre-allocating 512 of them per TB is a waste.
Reviewed-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
Signed-off-by: Richard Henderson <rth@twiddle.net>
This is less about improved type checking than enabling a
subsequent change to the representation of labels.
Acked-by: Claudio Fontana <claudio.fontana@huawei.com>
Tested-by: Claudio Fontana <claudio.fontana@huawei.com>
Cc: Andrzej Zaborowski <balrogg@gmail.com>
Cc: Peter Maydell <peter.maydell@linaro.org>
Cc: Aurelien Jarno <aurelien@aurel32.net>
Cc: Blue Swirl <blauwirbel@gmail.com>
Cc: Stefan Weil <sw@weilnetz.de>
Reviewed-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
Signed-off-by: Richard Henderson <rth@twiddle.net>
This is improved type checking for the translators -- it's no longer
possible to accidentally swap arguments to the branch functions.
Note that the code generating backends still manipulate labels as int.
With notable exceptions, the scope of the change is just a few lines
for each target, so it's not worth building extra machinery to do this
change in per-target increments.
Cc: Peter Maydell <peter.maydell@linaro.org>
Cc: Edgar E. Iglesias <edgar.iglesias@gmail.com>
Cc: Michael Walle <michael@walle.cc>
Cc: Leon Alrae <leon.alrae@imgtec.com>
Cc: Anthony Green <green@moxielogic.com>
Cc: Jia Liu <proljc@gmail.com>
Cc: Alexander Graf <agraf@suse.de>
Cc: Aurelien Jarno <aurelien@aurel32.net>
Cc: Blue Swirl <blauwirbel@gmail.com>
Cc: Guan Xuetao <gxt@mprc.pku.edu.cn>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Max Filippov <jcmvbkbc@gmail.com>
Reviewed-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Pre-allocating 640 of them per TB is a waste.
Reviewed-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
Signed-off-by: Richard Henderson <rth@twiddle.net>
A couple of #ifdef changes necessary to use NetBSD's ucontext
structs on sparc64 and arm.
Signed-off-by: Tobias Nygren <tnn@NetBSD.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1425591461-17550-1-git-send-email-tnn@NetBSD.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Test behaviour of timers and interrupts related to timeouts.
Signed-off-by: Frediano Ziglio <freddy77@gmail.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Message-id: 1420742303-3030-1-git-send-email-freddy77@gmail.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Using net_host_check_device is unnecessary. qemu_del_net_client asserts
for the non-peer case that it can only process NIC type NetClientStates,
and that assertion is valid for the peered case as well, so move it and
use the same check in net_host_device_remove. host_net_remove_completion
is already checking the type.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Jason Wang <jasowang@redhat.com>
Message-id: 1419353600-30519-2-git-send-email-pbonzini@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
QCOW_MAX_L1_SIZE's unit is byte, and l1_size's unit
is l1 table entry size(8 bytes).
Signed-off-by: Wen Congyang <wency@cn.fujitsu.com>
Message-id: 54FFB0F1.5010307@cn.fujitsu.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
There is a not-so-subtle race in QSLIST_INSERT_HEAD_ATOMIC.
Because atomic_cmpxchg returns the old value instead of a success flag,
QSLIST_INSERT_HEAD_ATOMIC was checking for success by comparing against
the second argument to atomic_cmpxchg. Unfortunately, this only works
if the second argument is a local or thread-local variable.
If it is in memory, it can be subject to common subexpression elimination
(and then everything's fine) or reloaded after the atomic_cmpxchg,
depending on the compiler's whims. If the latter happens, the race can
happen. A thread can sneak in, doing something on elm->field.sle_next
after the atomic_cmpxchg and before the comparison. This causes a wrong
failure, and then two threads are using "elm" at the same time. In the
case discovered by Christian, the sequence was likely something like this:
thread 1 | thread 2
QSLIST_INSERT_HEAD_ATOMIC |
atomic_cmpxchg succeeds |
elm added to list |
| steal release_pool
| QSLIST_REMOVE_HEAD
| elm removed from list
| ...
| QSLIST_INSERT_HEAD_ATOMIC
| (overwrites sle_next)
spurious failure |
atomic_cmpxchg succeeds |
elm added to list again |
|
steal release_pool |
QSLIST_REMOVE_HEAD |
elm removed again |
The last three steps could be done by a third thread as well.
A reproducer that failed in a matter of seconds is as follows:
- the guest has 32 VCPUs on a 28 core host (hyperthreading was enabled),
memory was 16G just to err on the safe side (the host has 64G, but hey
at least you need no s390)
- the guest has 24 null-aio virtio-blk devices using dataplane
(-object iothread,id=ioN -drive if=none,id=blkN,driver=null-aio,size=500G
-device virtio-blk-pci,iothread=ioN,drive=blkN)
- the guest also has a single network interface. It's only doing loopback
tests so slirp vs. tap and the model doesn't matter.
- the guest is running fio with the following script:
[global]
rw=randread
blocksize=16k
ioengine=libaio
runtime=10m
buffered=0
fallocate=none
time_based
iodepth=32
[virtio1a]
filename=/dev/block/252\:16
[virtio1b]
filename=/dev/block/252\:16
...
[virtio24a]
filename=/dev/block/252\:384
[virtio24b]
filename=/dev/block/252\:384
[listen1]
protocol=tcp
ioengine=net
port=12345
listen
rw=read
bs=4k
size=1000g
[connect1]
protocol=tcp
hostname=localhost
ioengine=net
port=12345
protocol=tcp
rw=write
startdelay=1
size=1000g
...
[listen8]
protocol=tcp
ioengine=net
port=12352
listen
rw=read
bs=4k
size=1000g
[connect8]
protocol=tcp
hostname=localhost
ioengine=net
port=12352
rw=write
startdelay=1
size=1000g
Moral of the story: I should refrain from writing more clever stuff.
At least it looks like it is not too clever to be undebuggable.
Reported-by: Christian Borntraeger <borntraeger@de.ibm.com>
Tested-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-id: 1426002357-6889-1-git-send-email-pbonzini@redhat.com
Fixes: c740ad92d0
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Rename config option from "glx" to "opengl", glx will not be the only
option for opengl in near future. Also switch over to pkg-config for
opengl support detection.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
This happens for example when doing ctrl-alt-u and segfaults
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Put them under a #define similar to the VGA model and make them
actually compile. Add a couple too.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Don't compare syscall return with -1, use "<0" condition.
Don't introduce useless local variables when we already
have similar variable
Rename local variable to be consistent with other usages
Finally make the two methods, read and write, to be similar to each other
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Omit one unnecessary memory allocation for components
of the path and create the resulting path directly given
lengths of the components.
Do not use basename(3) because there are 2 versions of
this function which differs when argument ends with
slash character, use strrchr() instead so we have
consistent result. This also makes sure the function
will do the right thing in corner cases (eg, empty
pathname is given), when basename(3) return entirely
another string.
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
A bunch of fixes all over the place, some of the
bugs fixed are actually regressions.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Merge remote-tracking branch 'remotes/mst/tags/for_upstream' into staging
misc fixes and cleanups
A bunch of fixes all over the place, some of the
bugs fixed are actually regressions.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
# gpg: Signature made Wed Mar 11 17:48:30 2015 GMT using RSA key ID D28D5469
# gpg: Good signature from "Michael S. Tsirkin <mst@kernel.org>"
# gpg: aka "Michael S. Tsirkin <mst@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: 0270 606B 6F3C DF3D 0B17 0970 C350 3912 AFBE 8E67
# Subkey fingerprint: 5D09 FD08 71C8 F85B 94CA 8A0D 281F 0DB8 D28D 5469
* remotes/mst/tags/for_upstream: (25 commits)
virtio-scsi: remove empty wrapper for cmd
virtio-scsi: clean out duplicate cdb field
virtio-scsi: fix cdb/sense size
uapi/virtio_scsi: allow overriding CDB/SENSE size
virtio-scsi: drop duplicate CDB/SENSE SIZE
exec: don't include hw/boards for linux-user
acpi: specify format for build_append_namestring
MAINTAINERS: drop aliguori@amazon.com
tpm: Move memory subregion function into realize function
virtio-pci: Convert to realize()
pci: Convert pci_nic_init() to Error to avoid qdev_init()
machine: query mem-merge machine property
machine: query dump-guest-core machine property
hw/boards: make it safe to include for linux-user
machine: query phandle-start machine property
machine: query kvm-shadow-mem machine property
kvm: add machine state to kvm_arch_init
machine: query kernel-irqchip property
machine: allowed/required kernel-irqchip support
machine: replace qemu opts with iommu property
...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
vs->lsock may equal to 0, modify the check condition,
avoid possible vs->lsock leak.
Signed-off-by: Gonglei <arei.gonglei@huawei.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
The 'x509verify' parameter is documented as taking a path to the
x509 certificates, ie the same syntax as the 'x509' parameter.
commit 4db14629c3
Author: Gerd Hoffmann <kraxel@redhat.com>
Date: Tue Sep 16 12:33:03 2014 +0200
vnc: switch to QemuOpts, allow multiple servers
caused a regression by turning 'x509verify' into a boolean
parameter instead. This breaks setup from libvirt and is not
consistent with the docs.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Use inet_listen_opts instead of inet_listen. Allows us to drop some
pointless indirection: Format strings just to parse them again later on.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Tested-by: Gonglei <arei.gonglei@huawei.com>
Reviewed-by: Gonglei <arei.gonglei@huawei.com>
