Read and write of some registers like ISPENDR and ICPENDR
from userspace requires special handling when compared to
guest access for these registers.
Refer to Documentation/virtual/kvm/devices/arm-vgic-v3.txt
for handling of ISPENDR, ICPENDR registers handling.
Add infrastructure to support guest and userspace read
and write for the required registers
Also moved vgic_uaccess from vgic-mmio-v2.c to vgic-mmio.c
Signed-off-by: Vijaya Kumar K <Vijaya.Kumar@cavium.com>
Reviewed-by: Christoffer Dall <christoffer.dall@linaro.org>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Let's log something for changes in facilities, cpuid and ibc now that we
have a cpu model in QEMU. All of these calls are pretty seldom, so we
will not spill the log, the they will help to understand pontential
guest issues, for example if some instructions are fenced off.
As the s390 debug feature has a limited amount of parameters and
strings must not go away we limit the facility printing to 3 double
words, instead of building that list dynamically. This should be enough
for several years. If we ever exceed 3 double words then the logging
will be incomplete but no functional impact will happen.
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
reset_guest_reference_bit needs to return the CC, so we can set it in
the guest PSW when emulating RRBE. Right now it only returns 0.
Let's fix that.
Signed-off-by: Janosch Frank <frankja@linux.vnet.ibm.com>
Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
When we get a PER i-fetch event on an EXECUTE or EXECUTE RELATIVE LONG
instruction, because the executed instruction generated a PER i-fetch
event, then the PER address points at the EXECUTE function, not the
fetched one.
Therefore, when filtering PER events, we have to take care of the
really fetched instruction, which we can only get by reading in guest
virtual memory.
For icpt code 4 and 56, we directly have additional information about an
EXECUTE instruction at hand. For icpt code 8, we always have to read
in guest virtual memory.
Signed-off-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
[small fixes]
We will have to read instructions not residing at the current PSW
address.
Reviewed-by: Eric Farman <farman@linux.vnet.ibm.com>
Signed-off-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Cc: David Hildenbrand <david@redhat.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
We already filter PER events reported via icpt code 8. For icpt code
4 and 56, this is still missing.
So let's properly detect if we have a debugging event and if we have to
inject a PER i-fetch event into the guest at all.
Signed-off-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com>
Cc: David Hildenbrand <david@redhat.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
We can directly forward the vector BCD instructions to the guest
if available and VX is requested by user space.
Please note that user space will have to take care of the final state
of the facility bit when migrating to older machines.
Signed-off-by: Guenther Hutzl <hutzl@linux.vnet.ibm.com>
Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com>
Reviewed-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
We can directly forward the vector enhancement facility 1 to the guest
if available and VX is requested by user space.
Please note that user space will have to take care of the final state
of the facility bit when migrating to older machines.
Reviewed-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Signed-off-by: Maxim Samoylov <max7255@linux.vnet.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
sparse with __CHECK_ENDIAN__ shows that ar_t was never properly
used across KVM on s390. We can now:
- fix all places
- do not make ar_t special
Since ar_t is just used as a register number (no endianness issues
for u8), and all other register numbers are also just plain int
variables, let's just use u8, which matches the __u8 in the userspace
ABI for the memop ioctl.
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Acked-by: Janosch Frank <frankja@linux.vnet.ibm.com>
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
The plo inline assembly has a cc output operand that is always written
to and is also as such an operand declared. Therefore the compiler is
free to omit the rather pointless and misleading initialization.
Get rid of this.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
The new Instruction Execution Protection needs to be enabled before
the guest can use it. Therefore we pass the IEP facility bit to the
guest and enable IEP interpretation.
Signed-off-by: Janosch Frank <frankja@linux.vnet.ibm.com>
Reviewed-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
When we access guest memory and run into a protection exception, we
need to pass the exception data to the guest. ESOP2 provides detailed
information about all protection exceptions which ESOP1 only partially
provided.
The gaccess changes make sure, that the guest always gets all
available information.
Signed-off-by: Janosch Frank <frankja@linux.vnet.ibm.com>
Reviewed-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Before fast page fault restores an access track PTE back to a regular PTE,
it now also verifies that the restored PTE would grant the necessary
permissions for the faulting access to succeed. If not, it falls back
to the slow page fault path.
Signed-off-by: Junaid Shahid <junaids@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Redo the page table walk in fast_page_fault when retrying so that we are
working on the latest PTE even if the hierarchy changes.
Signed-off-by: Junaid Shahid <junaids@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reword the comment to hopefully make it more clear.
Signed-off-by: Junaid Shahid <junaids@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Instead of the caller including the SPTE_SPECIAL_MASK in the masks being
supplied to kvm_mmu_set_mmio_spte_mask() and kvm_mmu_set_mask_ptes(),
those functions now themselves include the SPTE_SPECIAL_MASK.
Note that bit 63 is now reset in the default MMIO mask.
Signed-off-by: Junaid Shahid <junaids@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Rename the EPT_VIOLATION_READ/WRITE/INSTR constants to
EPT_VIOLATION_ACC_READ/WRITE/INSTR to more clearly indicate that these
signify the type of the memory access as opposed to the permissions
granted by the PTE.
Signed-off-by: Junaid Shahid <junaids@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
The function kvmppc_handle_exit_pr() is quite huge and thus hard to read,
and even contains a "spaghetti-code"-like goto between the different case
labels of the big switch statement. This can be made much more readable
by moving the code related to injecting program interrupts / instruction
emulation into a separate function instead.
Signed-off-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
The H_PROD hypercall is supposed to wake up an idle vcpu. We have
an implementation, but because Linux doesn't use it except when
doing cpu hotplug, it was never tested properly. AIX does use it,
and reported it broken. It turns out we were waking the wrong
vcpu (the one doing H_PROD, not the target of the prod) and we
weren't handling the case where the target needs an IPI to wake
it. Fix it by using the existing kvmppc_fast_vcpu_kick_hv()
function, which is intended for this kind of thing, and by using
the target vcpu not the current vcpu.
We were also not looking at the prodded flag when checking whether a
ceded vcpu should wake up, so this adds checks for the prodded flag
alongside the checks for pending exceptions.
Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
A subsequent patch to make KVM handlers relocation-safe makes them
unusable from within alt section "else" cases (due to the way fixed
addresses are taken from within fixed section head code).
Stop open-coding the KVM handlers, and add them both as normal. A more
optimal fix may be to allow some level of alternate feature patching in
the exception macros themselves, but for now this will do.
The TRAMP_KVM handlers must be moved to the "virt" fixed section area
(name is arbitrary) in order to be closer to .text and avoid the dreaded
"relocation truncated to fit" error.
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Acked-by: Paul Mackerras <paulus@ozlabs.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Change the calling convention to put the trap number together with
CR in two halves of r12, which frees up HSTATE_SCRATCH2 in the HV
handler.
The 64-bit PR handler entry translates the calling convention back
to match the previous call convention (i.e., shared with 32-bit), for
simplicity.
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Acked-by: Paul Mackerras <paulus@ozlabs.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
This patch improves the code that takes lock twice to check the resend flag
and do the actual resending, by checking the resend flag locklessly, and
add a boolean parameter check_resend to icp_[rm_]deliver_irq(), so the
resend flag can be checked in the lock when doing the delivery.
We need make sure when we clear the ics's bit in the icp's resend_map, we
don't miss the resend flag of the irqs that set the bit. It could be
ordered through the barrier in test_and_clear_bit(), and a newly added
wmb between setting irq's resend flag, and icp's resend_map.
Signed-off-by: Li Zhong <zhong@linux.vnet.ibm.com>
Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
This patch implements P(Presented)/Q(Queued) states for ICS irqs.
When the interrupt is presented, set P. Present if P was not set.
If P is already set, don't present again, set Q.
When the interrupt is EOI'ed, move Q into P (and clear Q). If it is
set, re-present.
The asserted flag used by LSI is also incorporated into the P bit.
When the irq state is saved, P/Q bits are also saved, they need some
qemu modifications to be recognized and passed around to be restored.
KVM_XICS_PENDING bit set and saved should also indicate
KVM_XICS_PRESENTED bit set and saved. But it is possible some old
code doesn't have/recognize the P bit, so when we restore, we set P
for PENDING bit, too.
The idea and much of the code come from Ben.
Signed-off-by: Li Zhong <zhong@linux.vnet.ibm.com>
Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
It is possible that in the following order, one irq is resent twice:
CPU 1 CPU 2
ics_check_resend()
lock ics_lock
see resend set
unlock ics_lock
/* change affinity of the irq */
kvmppc_xics_set_xive()
write_xive()
lock ics_lock
see resend set
unlock ics_lock
icp_deliver_irq() /* resend */
icp_deliver_irq() /* resend again */
It doesn't have any user-visible effect at present, but needs to be avoided
when the following patch implementing the P/Q stuff is applied.
This patch clears the resend flag before releasing the ics lock, when we
know we will do a re-delivery after checking the flag, or setting the flag.
Signed-off-by: Li Zhong <zhong@linux.vnet.ibm.com>
Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
Some counters are added in Commit 6e0365b782 ("KVM: PPC: Book3S HV:
Add ICP real mode counters"), to provide some performance statistics to
determine whether further optimizing is needed for real mode functions.
The n_reject counter counts how many times ICP rejects an irq because of
priority in real mode. The redelivery of an lsi that is still asserted
after eoi doesn't fall into this category, so the increasement there is
removed.
Also, it needs to be increased in icp_rm_deliver_irq() if it rejects
another one.
Signed-off-by: Li Zhong <zhong@linux.vnet.ibm.com>
Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
Commit b0221556db ("KVM: PPC: Book3S HV: Move virtual mode ICP functions
to real-mode") removed the setting of the XICS_RM_REJECT flag. And
since that commit, nothing else sets the flag any more, so we can remove
the flag and the remaining code that handles it, including the counter
that counts how many times it get set.
Signed-off-by: Li Zhong <zhong@linux.vnet.ibm.com>
Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
If the target vcpu for kvmppc_fast_vcpu_kick_hv() is not running on
any CPU, then we will have vcpu->arch.thread_cpu == -1, and as it
happens, kvmppc_fast_vcpu_kick_hv will call kvmppc_ipi_thread with
-1 as the cpu argument. Although this is not meaningful, in the past,
before commit 1704a81cce ("KVM: PPC: Book3S HV: Use msgsnd for IPIs
to other cores on POWER9", 2016-11-18), it was harmless because CPU
-1 is not in the same core as any real CPU thread. On a POWER9,
however, we don't do the "same core" check, so we were trying to
do a msgsnd to thread -1, which is invalid. To avoid this, we add
a check to see that vcpu->arch.thread_cpu is >= 0 before calling
kvmppc_ipi_thread() with it. Since vcpu->arch.thread_vcpu can change
asynchronously, we use READ_ONCE to ensure that the value we check is
the same value that we use as the argument to kvmppc_ipi_thread().
Fixes: 1704a81cce ("KVM: PPC: Book3S HV: Use msgsnd for IPIs to other cores on POWER9")
Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
Add a file to debugfs to read the in-kernel state of the vgic. We don't
do any locking of the entire VGIC state while traversing all the IRQs,
so if the VM is running the user/developer may not see a quiesced state,
but should take care to pause the VM using facilities in user space for
that purpose.
We also don't support LPIs yet, but they can be added easily if needed.
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Tested-by: Eric Auger <eric.auger@redhat.com>
Tested-by: Andre Przywara <andre.przywara@arm.com>
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
One of the goals behind the VGIC redesign was to get rid of cached or
intermediate state in the data structures, but we decided to allow
ourselves to precompute the pending value of an IRQ based on the line
level and pending latch state. However, this has now become difficult
to base proper GICv3 save/restore on, because there is a potential to
modify the pending state without knowing if an interrupt is edge or
level configured.
See the following post and related message for more background:
https://lists.cs.columbia.edu/pipermail/kvmarm/2017-January/023195.html
This commit gets rid of the precomputed pending field in favor of a
function that calculates the value when needed, irq_is_pending().
The soft_pending field is renamed to pending_latch to represent that
this latch is the equivalent hardware latch which gets manipulated by
the input signal for edge-triggered interrupts and when writing to the
SPENDR/CPENDR registers.
After this commit save/restore code should be able to simply restore the
pending_latch state, line_level state, and config state in any order and
get the desired result.
Reviewed-by: Andre Przywara <andre.przywara@arm.com>
Reviewed-by: Marc Zyngier <marc.zyngier@arm.com>
Tested-by: Andre Przywara <andre.przywara@arm.com>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
Pull x86 fix from Thomas Gleixner:
"Restore the retrigger callbacks in the IO APIC irq chips. That
addresses a long standing regression which got introduced with the
rewrite of the x86 irq subsystem two years ago and went unnoticed so
far"
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/ioapic: Restore IO-APIC irq_chip retrigger callback
Pull smp/hotplug fix from Thomas Gleixner:
"Remove an unused variable which is a leftover from the notifier
removal"
* 'smp-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
cpu/hotplug: Remove unused but set variable in _cpu_down()
Random fixes and cleanups that accumulated over the time.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
-----BEGIN PGP SIGNATURE-----
iQEcBAABAgAGBQJYgTP0AAoJECgfDbjSjVRp0bUH/j2r8TRTPcqIWIixbSSxUtsU
Dp788EyizsPp8kenGPWT7xDQFtuFH2PwAqjvu6ZRa53hvo6Rt4Y8i2S/+lCNt/AN
tzVohWOjlpR6htc44BbJQzJZDHIT9zZKUeYSUBtES0isujBmsrhq7+0lBI3a3FdN
wmYK9LNTMLEo65ycmAulbvYN4iD/b7OqV4dieJCLaGyyrTTEHxfJzTK5f9dLZTz+
fhBofbwoOrdFQg+Ey88wU9xw+Ri31TE6vlwibHzArt46s/Dc7BCFhY7p1vD0uBl/
EIf17jcCB/mzOtmT8EfEhwC2vZYpxbSMaDDGOnSzhlnonkcNbUpII12Y7qEbNjk=
=xkS8
-----END PGP SIGNATURE-----
Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost
Pull virtio/vhost fixes from Michael Tsirkin:
"Random fixes and cleanups that accumulated over the time"
* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost:
virtio/s390: virtio: constify virtio_config_ops structures
virtio/s390: add missing \n to end of dev_err message
virtio/s390: support READ_STATUS command for virtio-ccw
tools/virtio/ringtest: tweaks for s390
tools/virtio/ringtest: fix run-on-all.sh for offline cpus
virtio_console: fix a crash in config_work_handler
vhost/scsi: silence uninitialized variable warning
vhost: scsi: constify target_core_fabric_ops structures
Pull thermal management fixes from Zhang Rui:
- fix a regression that thermal zone dynamically allocated sysfs
attributes are freed before they're removed, which is introduced in
4.10-rc1 (Jacob von Chorus)
- fix a boot warning because deprecated hwmon API is used (Fabio
Estevam)
- a couple of fixes for rockchip thermal driver (Brian Norris, Caesar
Wang)
* 'for-rc' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux:
thermal: rockchip: fixes the conversion table
thermal: core: move tz->device.groups cleanup to thermal_release
thermal: thermal_hwmon: Convert to hwmon_device_register_with_info()
thermal: rockchip: handle set_trips without the trip points
thermal: rockchip: optimize the conversion table
thermal: rockchip: fixes invalid temperature case
thermal: rockchip: don't pass table structs by value
thermal: rockchip: improve conversion error messages
Here are a few small USB fixes for 4.10-rc5.
Most of these are gadget/dwc2 fixes for reported issues, all of these
have been in linux-next for a while. The last one is a single xhci
WARN_ON removal to handle an issue that the dwc3 driver is hitting in
the 4.10-rc tree. The warning is harmless and needs to be removed, and
a "real" fix that is more complex will show up in 4.11-rc1 for this
device.
That last patch hasn't been in linux-next yet due to the weekend timing,
but it's a "simple" WARN_ON() removal so what could go wrong? :)
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-----BEGIN PGP SIGNATURE-----
iG0EABECAC0WIQT0tgzFv3jCIUoxPcsxR9QN2y37KQUCWIMpoA8cZ3JlZ0Brcm9h
aC5jb20ACgkQMUfUDdst+ynMpgCbBihuNVTIFrDO3/10zMTiC0O71NsAoNnMBA6B
qwwmm9AuY8Ja+Ch384FD
=+nqh
-----END PGP SIGNATURE-----
Merge tag 'usb-4.10-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB fixes from Greg KH:
"Here are a few small USB fixes for 4.10-rc5.
Most of these are gadget/dwc2 fixes for reported issues, all of these
have been in linux-next for a while. The last one is a single xhci
WARN_ON removal to handle an issue that the dwc3 driver is hitting in
the 4.10-rc tree. The warning is harmless and needs to be removed, and
a "real" fix that is more complex will show up in 4.11-rc1 for this
device.
That last patch hasn't been in linux-next yet due to the weekend
timing, but it's a "simple" WARN_ON() removal so what could go wrong?
:)"
Famous last words.
* tag 'usb-4.10-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
xhci: remove WARN_ON if dma mask is not set for platform devices
usb: dwc2: host: fix Wmaybe-uninitialized warning
usb: dwc2: gadget: Fix GUSBCFG.USBTRDTIM value
usb: gadget: udc: atmel: remove memory leak
usb: dwc3: exynos fix axius clock error path to do cleanup
usb: dwc2: Avoid suspending if we're in gadget mode
usb: dwc2: use u32 for DT binding parameters
usb: gadget: f_fs: Fix iterations on endpoints.
usb: dwc2: gadget: Fix DMA memory freeing
usb: gadget: composite: Fix function used to free memory
Pull libnvdimm fixes from Dan Williams:
"Two fixes:
- a regression fix for the multiple-pmem-namespace-per-region support
added in 4.9. Even if an existing environment is not using that
feature the act of creating and a destroying a single namespace
with the ndctl utility will lead to the proliferation of extra
unwanted namespace devices.
- a fix for the error code returned from the pmem driver when the
memcpy_mcsafe() routine returns -EFAULT. Btrfs seems to be the only
block I/O consumer that tries to parse the meaning of the error
code when it is non-zero.
Neither of these fixes are critical, the namespace leak is awkward in
that it can cause device naming to change and complicates debugging
namespace initialization issues. The error code fix is included out of
caution for what other consumers might be expecting -EIO for block I/O
errors"
* 'libnvdimm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm:
libnvdimm, namespace: fix pmem namespace leak, delete when size set to zero
pmem: return EIO on read_pmem() failure
caused some of these clocks to turn off when they were always left
on before.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2.0.22 (GNU/Linux)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=0KLk
-----END PGP SIGNATURE-----
Merge tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux
Pull clk fix from Stephen Boyd:
"One fix for Samsung Exynos524x SoCs where recent IOMMU patches have
caused some of these clocks to turn off when they were always left on
before"
* tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux:
clk/samsung: exynos542x: mark some clocks as critical
- More intc updates [Yuriv]
- Fix module build when unwinder is turned off
- IO Coherency Programming model updates
- Other miscll
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=pU0g
-----END PGP SIGNATURE-----
Merge tag 'arc-4.10-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc
Pull ARC fixes from Vineet Gupta:
- more intc updates [Yuriv]
- fix module build when unwinder is turned off
- IO Coherency Programming model updates
- other miscellaneous
* tag 'arc-4.10-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc:
ARC: Revert "ARC: mm: IOC: Don't enable IOC by default"
ARC: mm: split arc_cache_init to allow __init reaping of bulk
ARCv2: IOC: Use actual memory size to setup aperture size
ARCv2: IOC: Adhere to progamming model guidelines to avoid DMA corruption
ARCv2: IOC: refactor the IOC and SLC operations into own functions
ARC: module: Fix !CONFIG_ARC_DW2_UNWIND builds
ARCv2: save r30 on kernel entry as gcc uses it for code-gen
ARCv2: IRQ: Call entry/exit functions for chained handlers in MCIP
ARC: IRQ: Use hwirq instead of virq in mask/unmask
ARC: mmu: clarify the MMUv3 programming model
Two fixes for fallout from the hugetlb changes we merged this cycle.
Ten other fixes, four only affect Power9, and the rest are a bit of a mixture
though nothing terrible.
Thanks to:
Aneesh Kumar K.V, Anton Blanchard, Benjamin Herrenschmidt, Dave Martin, Gavin
Shan, Madhavan Srinivasan, Nicholas Piggin, Reza Arbab.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=xOFu
-----END PGP SIGNATURE-----
Merge tag 'powerpc-4.10-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc fixes from Michael Ellerman:
"Two fixes for fallout from the hugetlb changes we merged this cycle.
Ten other fixes, four only affect Power9, and the rest are a bit of a
mixture though nothing terrible.
Thanks to: Aneesh Kumar K.V, Anton Blanchard, Benjamin Herrenschmidt,
Dave Martin, Gavin Shan, Madhavan Srinivasan, Nicholas Piggin, Reza
Arbab"
* tag 'powerpc-4.10-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
powerpc: Ignore reserved field in DCSR and PVR reads and writes
powerpc/ptrace: Preserve previous TM fprs/vsrs on short regset write
powerpc/ptrace: Preserve previous fprs/vsrs on short regset write
powerpc/perf: Use MSR to report privilege level on P9 DD1
selftest/powerpc: Wrong PMC initialized in pmc56_overflow test
powerpc/eeh: Enable IO path on permanent error
powerpc/perf: Fix PM_BRU_CMPL event code for power9
powerpc/mm: Fix little-endian 4K hugetlb
powerpc/mm/hugetlb: Don't panic when we don't find the default huge page size
powerpc: Fix pgtable pmd cache init
powerpc/icp-opal: Fix missing KVM case and harden replay
powerpc/mm: Fix memory hotplug BUG() on radix
ARM:
- Fix for timer setup on VHE machines
- Drop spurious warning when the timer races against the vcpu running
again
- Prevent a vgic deadlock when the initialization fails (for stable)
s390:
- Fix a kernel memory exposure (for stable)
x86:
- Fix exception injection when hypercall instruction cannot be patched
-----BEGIN PGP SIGNATURE-----
iQEcBAABCAAGBQJYglwIAAoJEED/6hsPKofoZp0H+gLLEeKP0Mu+olXiOWjB/KFp
WBDAR1872xIjvEcOl9l6AZgdmp2hk7KW1t+kJj5npgu237v6fHBO9ybqrAfhfU4l
PH23zOebL15HINcwCK6OcxOTiOtgae5Nui1cnLJBHDQgPTC/VmIE8NgV/qrMyo2r
Vth+K/cBLKiWG9JhyQvxmrfupNJUknLSH7CTnlO/fC8GEJzDfMpUl7B1Ui0TGK53
ExVgVLg3F28SErj9bUU8y4VJhMrwDAf2Kx2BNHqDbzXMzTdp0LrGRymFLl2/Gxez
zLtZDfGYYzEhPp1NuDydlxLb8ymnsQNB7K6Kau0w9JoAvOYwfUYfDt+GaTegwYM=
=dPtS
-----END PGP SIGNATURE-----
Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull KVM fixes from Radim Krčmář:
"ARM:
- Fix for timer setup on VHE machines
- Drop spurious warning when the timer races against the vcpu running
again
- Prevent a vgic deadlock when the initialization fails (for stable)
s390:
- Fix a kernel memory exposure (for stable)
x86:
- Fix exception injection when hypercall instruction cannot be
patched"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
KVM: s390: do not expose random data via facility bitmap
KVM: x86: fix fixing of hypercalls
KVM: arm/arm64: vgic: Fix deadlock on error handling
KVM: arm64: Access CNTHCTL_EL2 bit fields correctly on VHE systems
KVM: arm/arm64: Fix occasional warning from the timer work function
Pull SCSI target fixes from Bart Van Assche:
- two small fixes for the ibmvscsis driver
- ten patches with bug fixes for the target mode of the qla2xxx driver
- four patches that avoid that the "sparse" and "smatch" static
analyzer tools report false positives for the qla2xxx code base
* 'scsi-target-for-v4.10' of git://git.kernel.org/pub/scm/linux/kernel/git/bvanassche/linux:
qla2xxx: Disable out-of-order processing by default in firmware
qla2xxx: Fix erroneous invalid handle message
qla2xxx: Reduce exess wait during chip reset
qla2xxx: Terminate exchange if corrupted
qla2xxx: Fix crash due to null pointer access
qla2xxx: Collect additional information to debug fw dump
qla2xxx: Reset reserved field in firmware options to 0
qla2xxx: Set tcm_qla2xxx version to automatically track qla2xxx version
qla2xxx: Include ATIO queue in firmware dump when in target mode
qla2xxx: Fix wrong IOCB type assumption
qla2xxx: Avoid that building with W=1 triggers complaints about set-but-not-used variables
qla2xxx: Move two arrays from header files to .c files
qla2xxx: Declare an array with file scope static
qla2xxx: Fix indentation
ibmvscsis: Fix sleeping in interrupt context
ibmvscsis: Fix max transfer length
This reverts commit bc6134942d.
A CPUID instruction executed in VMX non-root mode always causes a
VM-exit, regardless of the leaf being queried.
Fixes: bc6134942d ("KVM: nested VMX: disable perf cpuid reporting")
Signed-off-by: Jim Mattson <jmattson@google.com>
[The issue solved by bc6134942d has been resolved with ff651cb613
("KVM: nVMX: Add nested msr load/restore algorithm").]
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
Pull block fixes from Jens Axboe:
"Just two small fixes for this -rc.
One is just killing an unused variable from Keith, but the other
fixes a performance regression for nbd in this series, where we
inadvertently flipped when we set MSG_MORE when outputting data"
* 'for-linus' of git://git.kernel.dk/linux-block:
nbd: only set MSG_MORE when we have more to send
blk-mq: Remove unused variable
The usual small smattering of driver specific fixes. A few bits that
stand out here:
- The R-Car patches adding fallbacks are just adding new compatible
strings to the driver so that device trees are written in a more
robustly future proof fashion, this isn't strictly a fix but it's
just new IDs and it's better to get it into mainline sooner to
improve the ABI.
- The DesignWare "switch to new API part 2" patch is actually a
misleadingly titled fix for a bit that got missed in the original
conversion.
-----BEGIN PGP SIGNATURE-----
iQFHBAABCAAxFiEEreZoqmdXGLWf4p/qJNaLcl1Uh9AFAliA0xcTHGJyb29uaWVA
a2VybmVsLm9yZwAKCRAk1otyXVSH0O/kB/9XpR63v5Ej1surlHLJdX7GEk1Oaoy9
CoCHcwBCPfAlLstkVARbvQegdEl3WKZ7FFhIRKhuiW62hVPV8otOv6chyX++zdWo
sYcLHESyuVDydvFdsoMZOvxP22tUNGom6Dhmsf2sXSbWwV/Q2yFahouhAeMPZJ+c
kiZ1OUqae6YIL8EIt0fIFiLp1m2vVpXPLYAYr24a6G4P7nrnLwdMfD2+NnbE9YG8
5zTkFrzh7d7izj3QqGGvW/zMPB7fvP+kY2MdDHx2/lEFjMB4qg/i6C+8bRZGRnWO
FE3Z++LDQZmKpKcPKZlV53yiX1anEpR3mpKGEGSon9zZlBRZhvYJGZtN
=EoLd
-----END PGP SIGNATURE-----
Merge tag 'spi-fix-v4.10-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi
Pull spi fixes from Mark Brown:
"The usual small smattering of driver specific fixes. A few bits that
stand out here:
- the R-Car patches adding fallbacks are just adding new compatible
strings to the driver so that device trees are written in a more
robustly future proof fashion, this isn't strictly a fix but it's
just new IDs and it's better to get it into mainline sooner to
improve the ABI
- the DesignWare "switch to new API part 2" patch is actually a
misleadingly titled fix for a bit that got missed in the original
conversion"
* tag 'spi-fix-v4.10-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi:
spi: davinci: use dma_mapping_error()
spi: spi-axi: Free resources on error path
spi: pxa2xx: add missed break
spi: dw-mid: switch to new dmaengine_terminate_* API (part 2)
spi: dw: Make debugfs name unique between instances
spi: sh-msiof: Do not use C++ style comment
spi: armada-3700: Set mode bits correctly
spi: armada-3700: fix unsigned compare than zero on irq
spi: sh-msiof: Add R-Car Gen 2 and 3 fallback bindings
spi: SPI_FSL_DSPI should depend on HAS_DMA
marked for stable) and two fixups for this merge window's patches.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2
iQEcBAABCAAGBQJYghs8AAoJEEp/3jgCEfOLOz0IAI/xNUMO121S57GEhzkKDdWC
5PCHjg9itU+2eMCCZ2Nyuikj2NVwEFh9HLpMz5jtFa3oWCIhljh9wT8zlKDgpn5R
Q1GCT4LkHGhV+HA2sM04aynKBmC90ZVAHfDt/BTs5mLzW7neSpxFOQEPdS4FG6Zg
NxUGcI/GhqmfpcLnm5IqXxI1cc0bXf6BmEzlGrPAkvzJBhHXWKCVpr1Q/nBW96Q5
ko1EpP16wZoeRvsr1ztXmBTNURUrCi7S6PyK4M5MAro381U3a7zwQuFq9uuREahO
nJtCjWD3bd6U3ENDe/Gacz3czXQyjOjE2/w42jL1dA84UMQbz+wv1SyNCkQgiyI=
=1LTx
-----END PGP SIGNATURE-----
Merge tag 'ceph-for-4.10-rc5' of git://github.com/ceph/ceph-client
Pull ceph fixes from Ilya Dryomov:
"Three filesystem endianness fixes (one goes back to the 2.6 era, all
marked for stable) and two fixups for this merge window's patches"
* tag 'ceph-for-4.10-rc5' of git://github.com/ceph/ceph-client:
ceph: fix bad endianness handling in parse_reply_info_extra
ceph: fix endianness bug in frag_tree_split_cmp
ceph: fix endianness of getattr mask in ceph_d_revalidate
libceph: make sure ceph_aes_crypt() IV is aligned
ceph: fix ceph_get_caps() interruption
Pull overlayfs fix from Miklos Szeredi:
"This fixes a regression introduced in this cycle"
* 'overlayfs-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs:
ovl: fix possible use after free on redirect dir lookup
Pull fuse fixes from Miklos Szeredi:
"Fix two regressions, one introduced in 4.9 and a less recent one in
4.2"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse:
fuse: fix time_to_jiffies nsec sanity check
fuse: clear FR_PENDING flag when moving requests out of pending queue
This is a set of 12 fixes including the mpt3sas one that was causing
hangs on ATA passthrough. The others are a couple of zoned block
device fixes, a SAS device detection bug which lead to SATA drives not
being matched to bays, two qla2xxx MSI fixes, a qla2xxx req for rsp
confusion caused by cut and paste, and a few other minor fixes.
Signed-off-by: James E.J. Bottomley <jejb@linux.vnet.ibm.com>
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2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=8y3/
-----END PGP SIGNATURE-----
Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
"This is a set of 12 fixes including the mpt3sas one that was causing
hangs on ATA passthrough.
The others are a couple of zoned block device fixes, a SAS device
detection bug which lead to SATA drives not being matched to bays, two
qla2xxx MSI fixes, a qla2xxx req for rsp confusion caused by cut and
paste, and a few other minor fixes"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
scsi: mpt3sas: fix hang on ata passthrough commands
scsi: lpfc: Set elsiocb contexts to NULL after freeing it
scsi: sd: Ignore zoned field for host-managed devices
scsi: sd: Fix wrong DPOFUA disable in sd_read_cache_type
scsi: bfa: fix wrongly initialized variable in bfad_im_bsg_els_ct_request()
scsi: ses: Fix SAS device detection in enclosure
scsi: libfc: Fix variable name in fc_set_wwpn
scsi: lpfc: avoid double free of resource identifiers
scsi: qla2xxx: remove irq_affinity_notifier
scsi: qla2xxx: fix MSI-X vector affinity
scsi: qla2xxx: Fix apparent cut-n-paste error.
scsi: qla2xxx: Get mutex lock before checking optrom_state
uninitialised variables
- SWIOTLB DMA API fall-back allocation fix when the SWIOTLB buffer is
not initialised (all RAM is suitable for 32-bit DMA masks)
- Fix the bad_mode function returning for unhandled exceptions coming
from user space
- Fix name clash in __page_to_voff()
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=IArX
-----END PGP SIGNATURE-----
Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 fixes from Catalin Marinas:
- avoid potential stack information leak via the ptrace ABI caused by
uninitialised variables
- SWIOTLB DMA API fall-back allocation fix when the SWIOTLB buffer is
not initialised (all RAM is suitable for 32-bit DMA masks)
- fix the bad_mode function returning for unhandled exceptions coming
from user space
- fix name clash in __page_to_voff()
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
arm64: avoid returning from bad_mode
arm64/ptrace: Reject attempts to set incomplete hardware breakpoint fields
arm64/ptrace: Avoid uninitialised struct padding in fpr_set()
arm64/ptrace: Preserve previous registers for short regset write
arm64/ptrace: Preserve previous registers for short regset write
arm64/ptrace: Preserve previous registers for short regset write
arm64: mm: avoid name clash in __page_to_voff()
arm64: Fix swiotlb fallback allocation
Vijaya Kumar K