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The "domain" variable needs to be signed for the error handling to work.
Fixes: 8def31034d03 (cpufreq: arm_big_little: add SCPI interface driver)
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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After hooking up system call, userfaultfd selftest was successful for
both 32 and 64 bit version of test.
Signed-off-by: Mike Kravetz <mike.kravetz@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"This shouldn't be a nightmare before Christmas: just a handful small
device-specific fixes for various ASoC and HD-audio drivers. Most of
them are stable fixes"
* tag 'sound-4.4-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ALSA: hda/realtek - Fix silent headphone output on MacPro 4,1 (v2)
ASoC: fsl_sai: fix no frame clk in master mode
ALSA: hda - Set SKL+ hda controller power at freeze() and thaw()
ASoC: sgtl5000: fix VAG power up timing
ASoC: rockchip: spdif: Set transmit data level to 16 samples
ASoC: wm8974: set cache type for regmap
ASoC: es8328: Fix shifts for mixer switches
ASoC: davinci-mcasp: Fix XDATA check in mcasp_start_tx
ASoC: es8328: Fix deemphasis values
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git://anongit.freedesktop.org/drm-intel
Pull i915 drm fixes from Jani Nikula:
"Here's a batch of i915 fixes all around. It may be slightly bigger
than one would hope for at this stage, but they've all been through
testing in our -next before being picked up for v4.4. Also, I missed
Dave's fixes pull earlier today just because I wanted an extra testing
round on this. So I'm fairly confident.
Wishing you all the things it is customary to wish this time of the
year"
* tag 'drm-intel-fixes-2015-12-23' of git://anongit.freedesktop.org/drm-intel:
drm/i915: Correct max delay for HDMI hotplug live status checking
drm/i915: mdelay(10) considered harmful
drm/i915: Kill intel_crtc->cursor_bo
drm/i915: Workaround CHV pipe C cursor fail
drm/i915: Only spin whilst waiting on the current request
drm/i915: Limit the busy wait on requests to 5us not 10ms!
drm/i915: Break busywaiting for requests on pending signals
drm/i915: Disable primary plane if we fail to reconstruct BIOS fb (v2)
drm/i915: Set the map-and-fenceable flag for preallocated objects
drm/i915: Drop the broken cursor base==0 special casing
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Pull drm fixes from Dave Airlie:
"Not much happening, should have dequeued this lot earlier.
One amdgpu, one nouveau and one exynos fix"
* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
drm/exynos: atomic check only enabled crtc states
drm/nouveau/bios/fan: hardcode the fan mode to linear
drm/amdgpu: fix user fence handling
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The driver allocates the spinlock but fails to initialize it correctly.
The kernel reports a BUG indicating bad spinlock magic when spinlock
debugging is enabled.
Call spin_lock_init() on it to initialize it correctly.
Fixes: b4e3e59fb59c ("[media] rc: add sunxi-ir driver")
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Acked-by: Hans de Goede <hdegoede@redhat.com>
Cc: stable@vger.kernel.org
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
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Do not remove slave TS NULL padding PID (0x1fff) by default as
there is no real need. After that whole TS is passed to kernel sw
PID filter.
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
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It is hard to debug possible I2C failures without knowing the
possible register itself. Add register number to error printing.
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
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Return current active rtl2830/rtl2832 register page from the driver
cache in order to reduce I2C I/O. Register page is already cached
due to I2C write needs.
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
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Hook up the MPEG-2 ES decoder.
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Kamil Debski <k.debski@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
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We could support start streaming with an empty output queue for the
BIT decoders due to the bitstream buffer which could still contain
data at this point, but there is really no reason for userspace to
expect this to work. Simplify the code by disallowing it.
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Kamil Debski <k.debski@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
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Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Kamil Debski <k.debski@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
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coda_jpeg_check_buffer only cares about the buffer length and contents,
so change the parameter type back from v4l2_vb2_buffer to just the
vb2_buffer.
Instead of just checking the first and last bytes for the SOI and EOI
markers, relax the EOI marker check a bit and allow up to 32 trailing
bytes after the EOI marker as hardware generated JPEGs sometimes contain
some alignment overhead.
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Kamil Debski <k.debski@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
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This function is not used outside coda-common.c.
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Kamil Debski <k.debski@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
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MFC register addresses are used only by writel/readl macros which already
takes care of proper register accessing.
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Kamil Debski <k.debski@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
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Both macros can be merged into one.
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Kamil Debski <k.debski@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
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MFC driver uses dev->irqlock spinlock to protect queues only, but many context
fields require protection also - they can be accessed concurrently
from IOCTLs and IRQ handler. The patch increases protection range of irqlock
to those fields also.
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Kamil Debski <k.debski@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
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Many version specific functions are not called by common code, so there
is no need to use callbacks. Additionally some of them are not used at all,
so they can be safely removed.
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Kamil Debski <k.debski@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
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Code for queue cleanup has nothing specific to hardware version.
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Kamil Debski <k.debski@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
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Both version of MFC driver use functions with the same body and name.
The patch moves them to common location. It also simplifies it.
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Kamil Debski <k.debski@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
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The s5p_mfc_codec_ops structures are never modified, so declare them as
const.
Done with the help of Coccinelle.
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Kamil Debski <k.debski@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
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Atomic changes broke check_digital_port_conflicts(). It needs to look
at the global situation instead of just trying to find a conflict
within the current atomic state.
This bug made my HSW explode spectacularly after I had split the DDI
encoders into separate DP and HDMI encoders. With the fix, things
seem much more solid.
I hope holding the connection_mutex is enough protection that we can
actually walk the connectors even if they're not part of the current
atomic state...
v2: Regenerate the patch so that it actually applies (Jani)
Cc: stable@vger.kernel.org
Cc: Ander Conselvan de Oliveira <ander.conselvan.de.oliveira@intel.com>
Fixes: 5448a00d3f06 ("drm/i915: Don't use staged config in check_digital_port_conflicts()")
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1449764551-12466-1-git-send-email-ville.syrjala@linux.intel.com
(cherry picked from commit 0bff4858653312a10c83709e0009c3adb87e6f1e)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus
ASoC: Fixes for v4.4
A collection of small driver specific fixes here, nothing that'll affect
users who don't have the devices concerned. At least the wm8974 bug
indicates that there's not too many users of some of these devices.
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Commit 0ef2f05c7e02ff99c0b5b583d7dee2cd12b053f2 uses vmalloc for WR buffers
when needed and uses kvfree to free the buffers. It missed changing kfree
to kvfree in mlx4_ib_destroy_srq().
Reported-by: Matthew Finaly <matt@Mellanox.com>
Signed-off-by: Wengang Wang <wen.gang.wang@oracle.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
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Previously, cma_match_net_dev called cma_protocol_roce which
tried to verify that the IB device uses RoCE protocol. However,
if rdma_id wasn't bound to a port, then the check would occur
against the first port of the device without regard to whether
that port was even of the same type as the type of port the
incoming packet was received on.
Fix this by passing the port of the request and only checking
against the same port of the device.
Reported-by: Or Gerlitz <gerlitz.or@gmail.com>
Fixes: b8cab5dab15f ('IB/cma: Accept connection without a valid netdev on RoCE')
Signed-off-by: Matan Barak <matanb@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
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'asoc/fix/fsl-sai', 'asoc/fix/rockchip', 'asoc/fix/sgtl5000' and 'asoc/fix/wm8974' into asoc-linus
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For h/w that advertise their block storage's underlying chunk size, it's
a big performance win to not submit commands that cross them. This patch
uses that criteria if it is provided. If it is not provided, this patch
uses the max sectors as before.
Signed-off-by: Keith Busch <keith.busch@intel.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
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Pull block layer fixes from Jens Axboe:
"Three small fixes for 4.4 final. Specifically:
- The segment issue fix from Junichi, where the old IO path does a
bio limit split before potentially bouncing the pages. We need to
do that in the right order, to ensure that limitations are met.
- A NVMe surprise removal IO hang fix from Keith.
- A use-after-free in null_blk, introduced by a previous patch in
this series. From Mike Krinkin"
* 'for-linus' of git://git.kernel.dk/linux-block:
null_blk: fix use-after-free error
block: ensure to split after potentially bouncing a bio
NVMe: IO ending fixes on surprise removal
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Pull nfsd fix from Bruce Fields:
"Just one fix for a NFSv4 callback bug introduced in 4.4"
* tag 'nfsd-4.4-1' of git://linux-nfs.org/~bfields/linux:
nfsd: don't hold ls_mutex across a layout recall
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Pull kvm fixes from Paolo Bonzini:
- A series of fixes to the MTRR emulation, tested in the BZ by several
users so they should be safe this late
- A fix for a division by zero
- Two very simple ARM and PPC fixes
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
KVM: x86: Reload pit counters for all channels when restoring state
KVM: MTRR: treat memory as writeback if MTRR is disabled in guest CPUID
KVM: MTRR: observe maxphyaddr from guest CPUID, not host
KVM: MTRR: fix fixed MTRR segment look up
KVM: VMX: Fix host initiated access to guest MSR_TSC_AUX
KVM: arm/arm64: vgic: Fix kvm_vgic_map_is_active's dist check
kvm: x86: move tracepoints outside extended quiescent state
KVM: PPC: Book3S HV: Prohibit setting illegal transaction state in MSR
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git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Pull s390 fixes from Martin Schwidefsky:
"Two late bug fixes for kernel 4.4.
Merry Christmas"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
s390/dis: Fix handling of format specifiers
s390/zcrypt: Fix AP queue handling if queue is full
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Enabling CPUFreq support for Tegra124 Chromebooks is causing the Tegra124
to hang when resuming from suspend.
When CPUFreq is enabled, the CPU clock is changed from the PLLX clock to
the DFLL clock during kernel boot. When resuming from suspend the CPU
clock is temporarily changed back to the PLLX clock before switching back
to the DFLL. If the DFLL is operating at a much lower frequency than the
PLLX when we enter suspend, and so the CPU voltage rail is at a voltage
too low for the CPUs to operate at the PLLX frequency, then the device
will hang.
Please note that the PLLX is used in the resume sequence to switch the CPU
clock from the very slow 32K clock to a faster clock during early resume
to speed up the resume sequence before the DFLL is resumed.
Ideally, we should fix this by setting the suspend frequency so that it
matches the PLLX frequency, however, that would be a bigger change. For
now simply disable CPUFreq support for Tegra124 Chromebooks to avoid the
hang when resuming from suspend.
Fixes: 9a0baee960a7 ("ARM: tegra: Enable CPUFreq support for Tegra124
Chromebooks")
Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
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Pull virtio fix from Michael Tsirkin:
"This includes a single fix for virtio ccw error handling"
* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost:
virtio/s390: handle error values in irb
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Fix a pointer cast typo introduced in v4.4-rc5 especially visible for
the i386 subarchitecture where it results in a kernel crash.
[ Also removed pointless cast as per Al Viro - Linus ]
Fixes: 8090bfd2bb9a ("um: Fix fpstate handling")
Signed-off-by: Mickaël Salaün <mic@digikod.net>
Cc: Jeff Dike <jdike@addtoit.com>
Acked-by: Richard Weinberger <richard@nod.at>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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When sysctl performs restrict writes, it allows to write from
a middle position of a sysctl file, which requires us to initialize
the table data before calling proc_dostring() for the write case.
Fixes: 3d1bec99320d ("ipv6: introduce secret_stable to ipv6_devconf")
Reported-by: Sasha Levin <sasha.levin@oracle.com>
Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Tested-by: Sasha Levin <sasha.levin@oracle.com>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec
Steffen Klassert says:
====================
pull request (net): ipsec 2015-12-22
Just one patch to fix dst_entries_init with multiple namespaces.
From Dan Streetman.
Please pull or let me know if there are problems.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes
Few fixes for omaps to allow am437x only builds to boot properly with
CPU_IDLE and ARM TWD timer. This is probably a common configuration setup
for people making products with these SoCs so let's make sure it works.
Also a wakeirq fix for duovero parlor making my life a bit easier as that
allows me to run basic PM regression tests on it.
It would be nice to have these in v4.4, but if it gets too late for that
because of the holidays, it is not super critical if these get merged for
v4.5.
* tag 'omap-for-v4.4/fixes-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
ARM: dts: Fix UART wakeirq for omap4 duovero parlor
ARM: OMAP2+: AM43xx: select ARM TWD timer
ARM: OMAP2+: am43xx: enable GENERIC_CLOCKEVENTS_BROADCAST
Signed-off-by: Olof Johansson <olof@lixom.net>
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ip6addrlbl_get() has never worked. If ip6addrlbl_hold() succeeded,
ip6addrlbl_get() will exit with '-ESRCH'. If ip6addrlbl_hold() failed,
ip6addrlbl_get() will use about to be free ip6addrlbl_entry pointer.
Fix this by inverting ip6addrlbl_hold() check.
Fixes: 2a8cc6c89039 ("[IPV6] ADDRCONF: Support RFC3484 configurable address selection policy table.")
Signed-off-by: Andrey Ryabinin <aryabinin@virtuozzo.com>
Reviewed-by: Cong Wang <cwang@twopensource.com>
Acked-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The bridge's ageing time is offloaded to hardware when:
1) A port joins a bridge
2) The ageing time of the bridge is changed
In the first case the ageing time is offloaded as jiffies, but in the
second case it's offloaded as clock_t, which is what existing switchdev
drivers expect to receive.
Fixes: 6ac311ae8bfb ("Adding switchdev ageing notification on port bridged")
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Commit 1299653affa4 ("sh_eth: fix descriptor access endianness") only
addressed the 32-bit buffer address field byte-swapping but the driver
still accesses 16-bit frame/buffer length descriptor fields without the
necessary byte-swapping -- which should affect the big-endian kernels.
In order to be able to use {cpu|edmac}_to_{edmac|cpu}(), we need to declare
the RX/TX descriptor word 1 as a 32-bit field and use shifts/masking to
access the 16-bit subfields (which gets rid of the ugly #ifdef'ery too)...
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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as good.
Packets that arrive from real hardware devices have ip_summed ==
CHECKSUM_UNNECESSARY if the hardware verified the checksums, or
CHECKSUM_NONE if the packet is bad or it was unable to verify it. The
current version of veth will replace CHECKSUM_NONE with
CHECKSUM_UNNECESSARY, which causes corrupt packets routed from hardware to
a veth device to be delivered to the application. This caused applications
at Twitter to receive corrupt data when network hardware was corrupting
packets.
We believe this was added as an optimization to skip computing and
verifying checksums for communication between containers. However, locally
generated packets have ip_summed == CHECKSUM_PARTIAL, so the code as
written does nothing for them. As far as we can tell, after removing this
code, these packets are transmitted from one stack to another unmodified
(tcpdump shows invalid checksums on both sides, as expected), and they are
delivered correctly to applications. We didn’t test every possible network
configuration, but we tried a few common ones such as bridging containers,
using NAT between the host and a container, and routing from hardware
devices to containers. We have effectively deployed this in production at
Twitter (by disabling RX checksum offloading on veth devices).
This code dates back to the first version of the driver, commit
<e314dbdc1c0dc6a548ecf> ("[NET]: Virtual ethernet device driver"), so I
suspect this bug occurred mostly because the driver API has evolved
significantly since then. Commit <0b7967503dc97864f283a> ("net/veth: Fix
packet checksumming") (in December 2010) fixed this for packets that get
created locally and sent to hardware devices, by not changing
CHECKSUM_PARTIAL. However, the same issue still occurs for packets coming
in from hardware devices.
Co-authored-by: Evan Jones <ej@evanjones.ca>
Signed-off-by: Evan Jones <ej@evanjones.ca>
Cc: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Cc: Phil Sutter <phil@nwl.cc>
Cc: Toshiaki Makita <makita.toshiaki@lab.ntt.co.jp>
Cc: netdev@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Vijay Pandurangan <vijayp@vijayp.ca>
Acked-by: Cong Wang <cwang@twopensource.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Pablo Neira Ayuso says:
====================
Netfilter fixes for net
The following patchset contains two netfilter fixes:
1) Oneliner from Florian to dump missing NFT_CT_L3PROTOCOL netlink
attribute, from Florian Westphal.
2) Another oneliner for nf_tables to use skb->protocol from the new
netdev family, we can't assume ethernet there.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into fixes
The i.MX fixes for 4.4, 3rd round:
- Fix Ethernet PHY mode on i.MX6 Ventana boards, which can result in
a non-functional Ethernet when Marvell phy driver rather than generic
phy driver is selected.
- Fix an assigned-clock configuration bug on imx6qdl-sabreauto board
which was introduced by commit ed339363de1b ("ARM: dts:
imx6qdl-sabreauto: Allow HDMI and LVDS to work simultaneously").
* tag 'imx-fixes-4.4-3' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
ARM: dts: imx6: Fix Ethernet PHY mode on Ventana boards
ARM: dts: imx: Fix the assigned-clock mismatch issue on imx6q/dl
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0x4e is the runtime address normally associated with perihperal ICs.
0x45 is not a valid runtime address.
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
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The primary PMICs use 0x3a3 as their hardware address, not 0x3e3.
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
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blk_end_request_all may free request, so we need to save
request_queue pointer before blk_end_request_all call.
The problem was introduced in commit cf8ecc5a8455266f8d51
("null_blk: guarantee device restart in all irq modes")
and causes general protection fault with slab poisoning
enabled.
Fixes: cf8ecc5a8455266f8d51 ("null_blk: guarantee device
restart in all irq modes")
Signed-off-by: Mike Krinkin <krinkin.m.u@gmail.com>
Reviewed-by: Ming Lei <tom.leiming@gmail.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
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blk_queue_bio() does split then bounce, which makes the segment
counting based on pages before bouncing and could go wrong. Move
the split to after bouncing, like we do for blk-mq, and the we
fix the issue of having the bio count for segments be wrong.
Fixes: 54efd50bfd87 ("block: make generic_make_request handle arbitrarily sized bios")
Cc: stable@vger.kernel.org
Tested-by: Artem S. Tashkinov <t.artem@lycos.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
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This patch fixes a lost request discovered during IO + hot removal.
The driver's pci removal deletes gendisks prior to shutting down the
controller to allow dirty data to sync. Dirty data can not be synced on
a surprise removal, though, and would potentially block indefinitely.
The driver previously had marked the queue as dying in this scenario
to prevent new requests from attempting, however it will still block
for requests that already entered the queue. This patch fixes this by
quiescing IO first, then aborting the requeued requests before deleting
disks.
Reported-by: Sujith Pandel <sujith_pandel@dell.com>
Signed-off-by: Keith Busch <keith.busch@intel.com>
Tested-by: Sujith Pandel <sujith_pandel@dell.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
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Currently if userspace restores the pit counters with a count of 0
on channels 1 or 2 and the guest attempts to read the count on those
channels, then KVM will perform a mod of 0 and crash. This will ensure
that 0 values are converted to 65536 as per the spec.
This is CVE-2015-7513.
Signed-off-by: Andy Honig <ahonig@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Virtual machines can be run with CPUID such that there are no MTRRs.
In that case, the firmware will never enable MTRRs and it is obviously
undesirable to run the guest entirely with UC memory. Check out guest
CPUID, and use WB memory if MTRR do not exist.
Cc: qemu-stable@nongnu.org
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=107561
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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