Arnd Bergmann [Tue, 2 Oct 2018 08:02:33 +0000 (10:02 +0200)]
Merge tag 'actions-drivers+s900-sps-for-4.20' of git://git.kernel.org/pub/scm/linux/kernel/git/afaerber/linux-actions into next/drivers
Actions Semi SoC drivers for v4.20 #2
The SPS power domain driver is extended for S900 SoC.
This required merging a topic branch for the new bindings header.
* tag 'actions-drivers+s900-sps-for-4.20' of git://git.kernel.org/pub/scm/linux/kernel/git/afaerber/linux-actions:
soc: actions: sps: Add S900 power domains
dt-bindings: power: Add Actions Semi S900 SPS
soc: actions: Update SPS help text for S700
soc: actions: Convert to SPDX license identifiers
Arnd Bergmann [Tue, 2 Oct 2018 08:00:42 +0000 (10:00 +0200)]
Merge tag 'v4.19-next-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/matthias.bgg/linux into next/drivers
PMIC wrapper:
- sort SoCs and PMICs ascending
- add capabilities
- add support for mt8183 SoC + mt6358 PMIC
- return false instead of 0
- add support for mt6765 SoC + mt6357 PMIC
* tag 'v4.19-next-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/matthias.bgg/linux:
soc: mediatek: pwrap: add mt6357 driver for mt6765 SoCs
soc: mediatek: pwrap: add pwrap driver for mt6765 SoCs
dt-bindings: pwrap: mediatek: add pwrap support for MT6765
soc: mediatek: pwrap: use true and false for boolean values
soc: mediatek: add mt8183 pwrap support
soc: mediatek: pwrap: use group of bits for pwrap capability
soc: mediatek: pwrap: order SoCs and PMICs ascending
dt-bindings: mediatek: add compatible for mt8183 pwrap
Arnd Bergmann [Tue, 2 Oct 2018 07:59:03 +0000 (09:59 +0200)]
Merge tag 'sunxi-drivers-for-4.20' of git://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux into next/drivers
Allwinner drivers changes for 4.20
The H6 is now supported in our SRAM driver bindings, and we have a small
Makefile change for the SRAM driver to build it without building the
ARCH_SUNXI architecture, especially relevant for the COMPILE_TEST case.
* tag 'sunxi-drivers-for-4.20' of git://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux:
dt-bindings: sunxi-sram: add binding for Allwinner H6 SRAM C
drivers: soc: Allow building the sunxi driver without ARCH_SUNXI
Merge tag 'tegra-for-4.20-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux into next/drivers
soc/tegra: Changes for v4.20-rc1
This contains a pinctrl implementation for the pad configuration that
can be controlled from the PMC.
* tag 'tegra-for-4.20-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux:
soc/tegra: pmc: Implement pad configuration via pinctrl
soc/tegra: pmc: Remove public pad voltage APIs
soc/tegra: pmc: Use X macro to generate IO pad tables
soc/tegra: pmc: Implement tegra_io_pad_is_powered()
soc/tegra: pmc: Factor out DPD register bit calculation
soc/tegra: pmc: Fix pad voltage configuration for Tegra186
soc/tegra: pmc: Fix child-node lookup
dt-bindings: Add Tegra PMC pad configuration bindings
Merge tag 'zynqmp-soc-for-v4.20-v2' of https://github.com/Xilinx/linux-xlnx into next/drivers
arm64: zynqmp: SoC changes for v4.20
- Adding firmware API for SoC with debugfs interface
Firmware driver communicates to Platform Management Unit (PMU) by using
SMC instructions routed to Arm Trusted Firmware (ATF). Initial version
adds support for base firmware driver with query and clock APIs.
EEMI spec is available here:
https://www.xilinx.com/support/documentation/user_guides/ug1200-eemi-api.pdf
* tag 'zynqmp-soc-for-v4.20-v2' of https://github.com/Xilinx/linux-xlnx:
firmware: xilinx: Add debugfs for query data API
firmware: xilinx: Add debugfs interface
firmware: xilinx: Add clock APIs
firmware: xilinx: Add query data API
firmware: xilinx: Add Zynqmp firmware driver
dt-bindings: firmware: Add bindings for ZynqMP firmware
Rajan Vaja [Wed, 12 Sep 2018 19:38:36 +0000 (12:38 -0700)]
firmware: xilinx: Add Zynqmp firmware driver
This patch is adding communication layer with firmware.
Firmware driver provides an interface to firmware APIs.
Interface APIs can be used by any driver to communicate to
PMUFW(Platform Management Unit). All requests go through ATF.
Signed-off-by: Rajan Vaja <rajanv@xilinx.com> Signed-off-by: Jolly Shah <jollys@xilinx.com> Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Rajan Vaja [Wed, 12 Sep 2018 19:38:35 +0000 (12:38 -0700)]
dt-bindings: firmware: Add bindings for ZynqMP firmware
Add documentation to describe Xilinx ZynqMP firmware driver
bindings. Firmware driver provides an interface to firmware
APIs. Interface APIs can be used by any driver to communicate
to PMUFW (Platform Management Unit).
Signed-off-by: Rajan Vaja <rajanv@xilinx.com> Signed-off-by: Jolly Shah <jollys@xilinx.com> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Olof Johansson [Tue, 25 Sep 2018 18:31:00 +0000 (11:31 -0700)]
Merge tag 'scmi-updates-4.20' of git://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux into next/drivers
SCMI updates for v4.20
1. Addition of interface to fetch estimated power from the firmware
corresponding to each OPP of a device
2. Cleanup using strlcpy to ensure NULL-terminated strings for name
strings instead of relying on the firmware to do the same
* tag 'scmi-updates-4.20' of git://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux:
firmware: arm_scmi: add a getter for power of performance states
firmware: arm_scmi: use strlcpy to ensure NULL-terminated strings
Argus Lin [Tue, 4 Sep 2018 12:31:54 +0000 (20:31 +0800)]
soc: mediatek: pwrap: add mt6357 driver for mt6765 SoCs
MT6357 is a new power management IC and it is used for mt6765 SoCs.
To define mt6357_regs for pmic register mapping and pmic_mt6357
for accessing register.
Signed-off-by: Argus Lin <argus.lin@mediatek.com> Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
Argus Lin [Tue, 4 Sep 2018 12:31:53 +0000 (20:31 +0800)]
soc: mediatek: pwrap: add pwrap driver for mt6765 SoCs
mt6765 is a highly integrated SoCs, it uses mt6357 for power management.
This patch adds pwrap driver to access mt6357. Pwrap of mt6765 support
dynamic priority meichanism, sequence monitor and starvation mechanism
to make transaction more reliable.
Signed-off-by: Argus Lin <argus.lin@mediatek.com>
[mb: change has_bridge to capabilities] Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
soc: mediatek: pwrap: use true and false for boolean values
Return statements in functions returning bool should use true or false
instead of an integer value.
This issue was detected with the help of Coccinelle.
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com> Acked-by: Sean Wang <sean.wang@mediatek.com> Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
Hsin-Hsiung Wang [Wed, 19 Sep 2018 07:26:00 +0000 (15:26 +0800)]
soc: mediatek: add mt8183 pwrap support
MT6358 is a new power management IC and it is used for
mt8183 SoCs. To define mt6358_regs for pmic register
mapping and pmic_mt6358 for accessing register.
Adding one more interrupt and wdt source.
Signed-off-by: Hsin-Hsiung Wang <hsin-hsiung.wang@mediatek.com> Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
Document bindings for the RZ/G2E (a.k.a. R8A774C0) reset
module.
Signed-off-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com> Reviewed-by: Biju Das <biju.das@bp.renesas.com> Acked-by: Philipp Zabel <p.zabel@pengutronix.de> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
drivers: soc: Allow building the sunxi driver without ARCH_SUNXI
This makes it possible to build the sunxi SRAM driver without building
for the sunxi architecture. This allows selecting the driver when
building the kernel in testing environments.
In particular, this is necessary for testing of the Cedrus driver, that
selects the sunxi SRAM driver.
Signed-off-by: Paul Kocialkowski <contact@paulk.fr> Acked-by: Maxime Ripard <maxime.ripard@bootlin.com> Signed-off-by: Chen-Yu Tsai <wens@csie.org>
firmware: arm_scmi: add a getter for power of performance states
The SCMI protocol can be used to get power estimates from firmware
corresponding to each performance state of a device. Although these power
costs are already managed by the SCMI firmware driver, they are not
exposed to any external subsystem yet.
Fix this by adding a new get_power() interface to the exisiting perf_ops
defined for the SCMI protocol.
firmware: arm_scmi: use strlcpy to ensure NULL-terminated strings
Replace all the memcpy() for copying name strings from the firmware with
strlcpy() to make sure we are bounded by the source buffer size and we
also always have NULL-terminated strings.
This is needed to avoid out of bounds accesses if the firmware returns
a non-terminated string.
Reported-by: Olof Johansson <olof@lixom.net> Acked-by: Olof Johansson <olof@lixom.net> Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Thomas Gleixner:
"A set of fixes for x86:
- Prevent multiplication result truncation on 32bit. Introduced with
the early timestamp reworrk.
- Ensure microcode revision storage to be consistent under all
circumstances
- Prevent write tearing of PTEs
- Prevent confusion of user and kernel reegisters when dumping fatal
signals verbosely
- Make an error return value in a failure path of the vector
allocation negative. Returning EINVAL might the caller assume
success and causes further wreckage.
- A trivial kernel doc warning fix"
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/mm: Use WRITE_ONCE() when setting PTEs
x86/apic/vector: Make error return value negative
x86/process: Don't mix user/kernel regs in 64bit __show_regs()
x86/tsc: Prevent result truncation on 32bit
x86: Fix kernel-doc atomic.h warnings
x86/microcode: Update the new microcode revision unconditionally
x86/microcode: Make sure boot_cpu_data.microcode is up-to-date
Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull timekeeping fixes from Thomas Gleixner:
"Two fixes for timekeeping:
- Revert to the previous kthread based update, which is unfortunately
required due to lock ordering issues. The removal caused boot
failures on old Core2 machines. Add a proper comment why the thread
needs to stay to prevent accidental removal in the future.
- Fix a silly typo in a function declaration"
* 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
clocksource: Revert "Remove kthread"
timekeeping: Fix declaration of read_persistent_wall_and_boot_offset()
Merge branch 'smp-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull cpu hotplug fixes from Thomas Gleixner:
"Two fixes for the hotplug state machine code:
- Move the misplaces smb() in the hotplug thread function to the
proper place, otherwise a half update control struct could be
observed
- Prevent state corruption on error rollback, which causes the state
to advance by one and as a consequence skip it in the bringup
sequence"
* 'smp-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
cpu/hotplug: Prevent state corruption on error rollback
cpu/hotplug: Adjust misplaced smb() in cpuhp_thread_fun()
Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/random
Pull random driver fix from Ted Ts'o:
"Fix things so the choice of whether or not to trust RDRAND to
initialize the CRNG is configurable via the boot option
random.trust_cpu={on,off}"
* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/random:
random: make CPU trust a boot parameter
Merge tag 'kbuild-fixes-v4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
Pull Kbuild fixes from Masahiro Yamada:
- make setlocalversion more robust about -dirty check
- loosen the pkg-config requirement for Kconfig
- change missing depmod to a warning from an error
- warn modules_install when System.map is missing
* tag 'kbuild-fixes-v4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
kbuild: modules_install: warn when missing System.map file
kbuild: make missing $DEPMOD a Warning instead of an Error
kconfig: do not require pkg-config on make {menu,n}config
kconfig: remove a spurious self-assignment
scripts/setlocalversion: git: Make -dirty check more robust
Randy Dunlap [Thu, 6 Sep 2018 23:37:24 +0000 (16:37 -0700)]
kbuild: modules_install: warn when missing System.map file
If there is no System.map file for "make modules_install",
scripts/depmod.sh will silently exit with success, having done
nothing. Since this is an unexpected situation, change it to
report a Warning for the missing file. The behavior is not
changed except for the Warning message.
The (previous) silent success and new Warning can be reproduced
by:
$ make mrproper; make defconfig
$ make modules; make modules_install
and since System.map is produced by "make vmlinux", the steps
above omit producing the System.map file.
Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull KVM fixes from Radim Krčmář:
"ARM:
- Fix a VFP corruption in 32-bit guest
- Add missing cache invalidation for CoW pages
- Two small cleanups
s390:
- Fallout from the hugetlbfs support: pfmf interpretion and locking
- VSIE: fix keywrapping for nested guests
PPC:
- Fix a bug where pages might not get marked dirty, causing guest
memory corruption on migration
- Fix a bug causing reads from guest memory to use the wrong guest
real address for very large HPT guests (>256G of memory), leading
to failures in instruction emulation.
x86:
- Fix out of bound access from malicious pv ipi hypercalls
(introduced in rc1)
- Fix delivery of pending interrupts when entering a nested guest,
preventing arbitrarily late injection
- Sanitize kvm_stat output after destroying a guest
- Fix infinite loop when emulating a nested guest page fault and
improve the surrounding emulation code
- Two minor cleanups"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (28 commits)
KVM: LAPIC: Fix pv ipis out-of-bounds access
KVM: nVMX: Fix loss of pending IRQ/NMI before entering L2
arm64: KVM: Remove pgd_lock
KVM: Remove obsolete kvm_unmap_hva notifier backend
arm64: KVM: Only force FPEXC32_EL2.EN if trapping FPSIMD
KVM: arm/arm64: Clean dcache to PoC when changing PTE due to CoW
KVM: s390: Properly lock mm context allow_gmap_hpage_1m setting
KVM: s390: vsie: copy wrapping keys to right place
KVM: s390: Fix pfmf and conditional skey emulation
tools/kvm_stat: re-animate display of dead guests
tools/kvm_stat: indicate dead guests as such
tools/kvm_stat: handle guest removals more gracefully
tools/kvm_stat: don't reset stats when setting PID filter for debugfs
tools/kvm_stat: fix updates for dead guests
tools/kvm_stat: fix handling of invalid paths in debugfs provider
tools/kvm_stat: fix python3 issues
KVM: x86: Unexport x86_emulate_instruction()
KVM: x86: Rename emulate_instruction() to kvm_emulate_instruction()
KVM: x86: Do not re-{try,execute} after failed emulation in L2
KVM: x86: Default to not allowing emulation retry in kvm_mmu_page_fault
...
Merge tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC fixes from Olof Johansson:
"A few more fixes who have trickled in:
- MMC bus width fixup for some Allwinner platforms
- Fix for NULL deref in ti-aemif when no platform data is passed in
- Fix div by 0 in SCMI code
- Add a missing module alias in a new RPi driver"
* tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
memory: ti-aemif: fix a potential NULL-pointer dereference
firmware: arm_scmi: fix divide by zero when sustained_perf_level is zero
hwmon: rpi: add module alias to raspberrypi-hwmon
arm64: allwinner: dts: h6: fix Pine H64 MMC bus width
Nadav Amit [Sun, 2 Sep 2018 18:14:50 +0000 (11:14 -0700)]
x86/mm: Use WRITE_ONCE() when setting PTEs
When page-table entries are set, the compiler might optimize their
assignment by using multiple instructions to set the PTE. This might
turn into a security hazard if the user somehow manages to use the
interim PTE. L1TF does not make our lives easier, making even an interim
non-present PTE a security hazard.
Using WRITE_ONCE() to set PTEs and friends should prevent this potential
security hazard.
I skimmed the differences in the binary with and without this patch. The
differences are (obviously) greater when CONFIG_PARAVIRT=n as more
code optimizations are possible. For better and worse, the impact on the
binary with this patch is pretty small. Skimming the code did not cause
anything to jump out as a security hazard, but it seems that at least
move_soft_dirty_pte() caused set_pte_at() to use multiple writes.
Signed-off-by: Nadav Amit <namit@vmware.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Dave Hansen <dave.hansen@linux.intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Josh Poimboeuf <jpoimboe@redhat.com> Cc: Michal Hocko <mhocko@suse.com> Cc: Vlastimil Babka <vbabka@suse.cz> Cc: Sean Christopherson <sean.j.christopherson@intel.com> Cc: Andy Lutomirski <luto@kernel.org> Cc: stable@vger.kernel.org Link: https://lkml.kernel.org/r/20180902181451.80520-1-namit@vmware.com
Thomas Gleixner [Sat, 8 Sep 2018 10:07:26 +0000 (12:07 +0200)]
x86/apic/vector: Make error return value negative
activate_managed() returns EINVAL instead of -EINVAL in case of
error. While this is unlikely to happen, the positive return value would
cause further malfunction at the call site.
Merge branch 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
Pull i2c fixes from Wolfram Sang:
- bugfixes for uniphier, i801, and xiic drivers
- ID removal (never produced) for imx
- one MAINTAINER addition
* 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
i2c: xiic: Record xilinx i2c with Zynq fragment
i2c: xiic: Make the start and the byte count write atomic
i2c: i801: fix DNV's SMBCTRL register offset
i2c: imx-lpi2c: Remove mx8dv compatible entry
dt-bindings: imx-lpi2c: Remove mx8dv compatible entry
i2c: uniphier-f: issue STOP only for last message or I2C_M_STOP
i2c: uniphier: issue STOP only for last message or I2C_M_STOP
* tag 'arc-4.19-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc:
ARC: don't check for HIGHMEM pages in arch_dma_alloc
ARC: IOC: panic if both IOC and ZONE_HIGHMEM enabled
ARC: dma [IOC] Enable per device io coherency
ARC: dma [IOC]: mark DMA devices connected as dma-coherent
ARC: atomics: unbork atomic_fetch_##op()
arc: remove redundant GCC version checks
ARC: sort Kconfig
ARC: cleanup show_faulting_vma()
ARC: [plat-axs*]: Enable SWAP
ARC: [plat-axs*/plat-hsdk]: Allow U-Boot to pass MAC-address to the kernel
ARC: configs: cleanup
David Howells [Fri, 7 Sep 2018 22:55:17 +0000 (23:55 +0100)]
afs: Fix cell specification to permit an empty address list
Fix the cell specification mechanism to allow cells to be pre-created
without having to specify at least one address (the addresses will be
upcalled for).
This allows the cell information preload service to avoid the need to issue
loads of DNS lookups during boot to get the addresses for each cell (500+
lookups for the 'standard' cell list[*]). The lookups can be done later as
each cell is accessed through the filesystem.
Also remove the print statement that prints a line every time a new cell is
added.
[*] There are 144 cells in the list. Each cell is first looked up for an
SRV record, and if that fails, for an AFSDB record. These get a list
of server names, each of which then has to be looked up to get the
addresses for that server. E.g.:
dig srv _afs3-vlserver._udp.grand.central.org
Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Merge tag 'md/4.19-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/shli/md
Pull MD fixes from Shaohua Li:
- Fix a locking issue for md-cluster (Guoqing)
- Fix a sync crash for raid10 (Ni)
- Fix a reshape bug with raid5 cache enabled (me)
* tag 'md/4.19-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/shli/md:
md-cluster: release RESYNC lock after the last resync message
RAID10 BUG_ON in raise_barrier when force is true and conf->barrier is 0
md/raid5-cache: disable reshape completely
Merge tag 'ceph-for-4.19-rc3' of https://github.com/ceph/ceph-client
Pull ceph fixes from Ilya Dryomov:
"Two rbd patches to complete support for images within namespaces that
went into -rc1 and a use-after-free fix.
The rbd changes have been sitting in a branch for quite a while but
couldn't be included into the -rc1 pull request because of a pending
wire protocol backwards compatibility fixup that only got committed
early this week"
* tag 'ceph-for-4.19-rc3' of https://github.com/ceph/ceph-client:
rbd: support cloning across namespaces
rbd: factor out get_parent_info()
ceph: avoid a use-after-free in ceph_destroy_options()
Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 fix from Will Deacon:
"Just one small fix here, preventing a VM_WARN_ON when a !present
PMD/PUD is "freed" as part of a huge ioremap() operation.
The correct behaviour is to skip the free silently in this case, which
is a little weird (the function is a bit of a misnomer), but it
follows the x86 implementation"
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
arm64: fix erroneous warnings in page freeing functions
Merge tag 'acpi-4.19-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI fixes from Rafael Wysocki:
"These fix a regression from the 4.18 cycle in the ACPI driver for
Intel SoCs (LPSS) and prevent dmi_check_system() from being called on
non-x86 systems in the ACPI core.
Specifics:
- Fix a power management regression in the ACPI driver for Intel SoCs
(LPSS) introduced by a system-wide suspend/resume fix during the
4.18 cycle (Zhang Rui).
- Prevent dmi_check_system() from being called on non-x86 systems in
the ACPI core (Jean Delvare)"
* tag 'acpi-4.19-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
ACPI / LPSS: Force LPSS quirks on boot
ACPI / bus: Only call dmi_check_system() on X86
Merge tag 'sound-4.19-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"Just a few small fixes:
- a fix for the recursive work cancellation in a specific HD-audio
operation mode
- a fix for potentially uninitialized memory access via rawmidi
- the register bit access fixes for ASoC HD-audio"
* tag 'sound-4.19-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ALSA: hda: Fix several mismatch for register mask and value
ALSA: rawmidi: Initialize allocated buffers
ALSA: hda - Fix cancel_work_sync() stall from jackpoll work
Wanpeng Li [Thu, 30 Aug 2018 02:03:30 +0000 (10:03 +0800)]
KVM: LAPIC: Fix pv ipis out-of-bounds access
Dan Carpenter reported that the untrusted data returns from kvm_register_read()
results in the following static checker warning:
arch/x86/kvm/lapic.c:576 kvm_pv_send_ipi()
error: buffer underflow 'map->phys_map' 's32min-s32max'
KVM guest can easily trigger this by executing the following assembly sequence
in Ring0:
As this will cause KVM to execute the following code-path:
vmx_handle_exit() -> handle_vmcall() -> kvm_emulate_hypercall() -> kvm_pv_send_ipi()
which will reach out-of-bounds access.
This patch fixes it by adding a check to kvm_pv_send_ipi() against map->max_apic_id,
ignoring destinations that are not present and delivering the rest. We also check
whether or not map->phys_map[min + i] is NULL since the max_apic_id is set to the
max apic id, some phys_map maybe NULL when apic id is sparse, especially kvm
unconditionally set max_apic_id to 255 to reserve enough space for any xAPIC ID.
Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Reviewed-by: Liran Alon <liran.alon@oracle.com> Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Radim Krčmář <rkrcmar@redhat.com> Cc: Liran Alon <liran.alon@oracle.com> Cc: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Wanpeng Li <wanpengli@tencent.com>
[Add second "if (min > map->max_apic_id)" to complete the fix. -Radim] Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
KVM: nVMX: Fix loss of pending IRQ/NMI before entering L2
Consider the case L1 had a IRQ/NMI event until it executed
VMLAUNCH/VMRESUME which wasn't delivered because it was disallowed
(e.g. interrupts disabled). When L1 executes VMLAUNCH/VMRESUME,
L0 needs to evaluate if this pending event should cause an exit from
L2 to L1 or delivered directly to L2 (e.g. In case L1 don't intercept
EXTERNAL_INTERRUPT).
Usually this would be handled by L0 requesting a IRQ/NMI window
by setting VMCS accordingly. However, this setting was done on
VMCS01 and now VMCS02 is active instead. Thus, when L1 executes
VMLAUNCH/VMRESUME we force L0 to perform pending event evaluation by
requesting a KVM_REQ_EVENT.
Note that above scenario exists when L1 KVM is about to enter L2 but
requests an "immediate-exit". As in this case, L1 will
disable-interrupts and then send a self-IPI before entering L2.
Reviewed-by: Nikita Leshchenko <nikita.leshchenko@oracle.com> Co-developed-by: Sean Christopherson <sean.j.christopherson@intel.com> Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com> Signed-off-by: Liran Alon <liran.alon@oracle.com> Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
Steven Price [Mon, 13 Aug 2018 16:04:53 +0000 (17:04 +0100)]
arm64: KVM: Remove pgd_lock
The lock has never been used and the page tables are protected by
mmu_lock in struct kvm.
Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com> Signed-off-by: Steven Price <steven.price@arm.com> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> Signed-off-by: Christoffer Dall <christoffer.dall@arm.com>
kvm_unmap_hva is long gone, and we only have kvm_unmap_hva_range to
deal with. Drop the now obsolete code.
Fixes: fb1522e099f0 ("KVM: update to new mmu_notifier semantic v2") Cc: James Hogan <jhogan@kernel.org> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> Signed-off-by: Christoffer Dall <christoffer.dall@arm.com>
Marc Zyngier [Thu, 23 Aug 2018 10:51:43 +0000 (11:51 +0100)]
arm64: KVM: Only force FPEXC32_EL2.EN if trapping FPSIMD
If trapping FPSIMD in the context of an AArch32 guest, it is critical
to set FPEXC32_EL2.EN to 1 so that the trapping is taken to EL2 and
not EL1.
Conversely, it is just as critical *not* to set FPEXC32_EL2.EN to 1
if we're not going to trap FPSIMD, as we then corrupt the existing
VFP state.
Moving the call to __activate_traps_fpsimd32 to the point where we
know for sure that we are going to trap ensures that we don't set that
bit spuriously.
Fixes: e6b673b741ea ("KVM: arm64: Optimise FPSIMD handling to reduce guest/host thrashing") Cc: stable@vger.kernel.org # v4.18 Cc: Dave Martin <dave.martin@arm.com> Reported-by: Alexander Graf <agraf@suse.de> Tested-by: Alexander Graf <agraf@suse.de> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> Signed-off-by: Christoffer Dall <christoffer.dall@arm.com>
Marc Zyngier [Thu, 23 Aug 2018 08:58:27 +0000 (09:58 +0100)]
KVM: arm/arm64: Clean dcache to PoC when changing PTE due to CoW
When triggering a CoW, we unmap the RO page via an MMU notifier
(invalidate_range_start), and then populate the new PTE using another
one (change_pte). In the meantime, we'll have copied the old page
into the new one.
The problem is that the data for the new page is sitting in the
cache, and should the guest have an uncached mapping to that page
(or its MMU off), following accesses will bypass the cache.
In a way, this is similar to what happens on a translation fault:
We need to clean the page to the PoC before mapping it. So let's just
do that.
This fixes a KVM unit test regression observed on a HiSilicon platform,
and subsequently reproduced on Seattle.
Fixes: a9c0e12ebee5 ("KVM: arm/arm64: Only clean the dcache on translation fault") Cc: stable@vger.kernel.org # v4.16+ Reported-by: Mike Galbraith <efault@gmx.de> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> Signed-off-by: Christoffer Dall <christoffer.dall@arm.com>
Merge tag 'drm-fixes-2018-09-07' of git://anongit.freedesktop.org/drm/drm
Pull drm fixes from Dave Airlie:
"Seems to have been overly quiet this week so I expect next week will
be more stuff, just one pull from Rodrigo with i915 fixes in it.
Quoting Rodrigo:
'The critical fix here on display side is the DP MST regression one.
But this pull also include fixes for DP SST, small VDSC register
fix and GVT's bucked with "BXT fixes, two guest warning fixes,
dmabuf format mod fix and one for recent multiple VM timeout
failure'."
* tag 'drm-fixes-2018-09-07' of git://anongit.freedesktop.org/drm/drm:
drm/i915/dp_mst: Fix enabling pipe clock for all streams
drm/i915/dsc: Fix PPS register definition macros for 2nd VDSC engine
drm/i915: Re-apply "Perform link quality check, unconditionally during long pulse"
drm/i915/gvt: Give new born vGPU higher scheduling chance
drm/i915/gvt: Fix drm_format_mod value for vGPU plane
drm/i915/gvt: move intel_runtime_pm_get out of spin_lock in stop_schedule
drm/i915/gvt: Handle GEN9_WM_CHICKEN3 with F_CMD_ACCESS.
drm/i915/gvt: Make correct handling to vreg BXT_PHY_CTL_FAMILY
drm/i915/gvt: emulate gen9 dbuf ctl register access
Dave Airlie [Fri, 7 Sep 2018 01:06:58 +0000 (11:06 +1000)]
Merge tag 'drm-intel-fixes-2018-09-05' of git://anongit.freedesktop.org/drm/drm-intel into drm-fixes
The critical fix here on display side is the DP MST regression one.
But this pull also include fixes for DP SST, small VDSC register fix
and GVT's bucked with "BXT fixes, two guest warning fixes, dmabuf
format mod fix and one for recent multiple VM timeout failure."
Merge tag 'mips_fixes_4.19_1' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux
Pull MIPS fix from Paul Burton:
"A single fix for v4.19-rc3, resolving a problem with our VDSO data
page for systems with dcache aliasing. Those systems could previously
observe stale data, causing clock_gettime() & gettimeofday() to return
incorrect values"
* tag 'mips_fixes_4.19_1' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux:
MIPS: VDSO: Match data page cache colouring when D$ aliases
Merge tag '4.19-rc2-smb3-fixes' of git://git.samba.org/sfrench/cifs-2.6
Pull cifs fixes from Steve French:
"Four small SMB3 fixes, three for stable, and one minor debug
clarification"
* tag '4.19-rc2-smb3-fixes' of git://git.samba.org/sfrench/cifs-2.6:
cifs: connect to servername instead of IP for IPC$ share
smb3: check for and properly advertise directory lease support
smb3: minor debugging clarifications in rfc1001 len processing
SMB3: Backup intent flag missing for directory opens with backupuid mounts
fs/cifs: don't translate SFM_SLASH (U+F026) to backslash
Peter Zijlstra [Wed, 5 Sep 2018 08:41:58 +0000 (10:41 +0200)]
clocksource: Revert "Remove kthread"
I turns out that the silly spawn kthread from worker was actually needed.
clocksource_watchdog_kthread() cannot be called directly from
clocksource_watchdog_work(), because clocksource_select() calls
timekeeping_notify() which uses stop_machine(). One cannot use
stop_machine() from a workqueue() due lock inversions wrt CPU hotplug.
Revert the patch but add a comment that explain why we jump through such
apparently silly hoops.
Merge tag 'for-linus-20180906' of git://git.kernel.dk/linux-block
Pull block fixes from Jens Axboe:
"Small collection of fixes that should go into this release. This
contains:
- Small series that fixes a race between blkcg teardown and writeback
(Dennis Zhou)
- Fix disallowing invalid block size settings from the nbd ioctl (me)
- BFQ fix for a use-after-free on last release of a bfqg (Konstantin
Khlebnikov)
- Fix for the "don't warn for flush" fix (Mikulas)"
* tag 'for-linus-20180906' of git://git.kernel.dk/linux-block:
block: bfq: swap puts in bfqg_and_blkg_put
block: don't warn when doing fsync on read-only devices
nbd: don't allow invalid blocksize settings
blkcg: use tryget logic when associating a blkg with a bio
blkcg: delay blkg destruction until after writeback has finished
Revert "blk-throttle: fix race between blkcg_bio_issue_check() and cgroup_rmdir()"
i2c: xiic: Make the start and the byte count write atomic
Disable interrupts while configuring the transfer and enable them back.
We have below as the programming sequence
1. start and slave address
2. byte count and stop
In some customer platform there was a lot of interrupts between 1 and 2
and after slave address (around 7 clock cyles) if 2 is not executed
then the transaction is nacked.
To fix this case make the 2 writes atomic.
Signed-off-by: Shubhrajyoti Datta <shubhrajyoti.datta@xilinx.com> Signed-off-by: Michal Simek <michal.simek@xilinx.com>
[wsa: added a newline for better readability] Signed-off-by: Wolfram Sang <wsa@the-dreams.de> Cc: stable@kernel.org
Jia He [Tue, 28 Aug 2018 04:53:26 +0000 (12:53 +0800)]
irqchip/gic-v3-its: Cap lpi_id_bits to reduce memory footprint
Commit fe8e93504ce8 ("irqchip/gic-v3-its: Use full range of LPIs"), removes
the cap for lpi_id_bits, which causes the following warning to trigger on a
QDF2400 server:
In its_alloc_lpi_tables(), lpi_id_bits is 24 in QDF2400. The allocation in
allocate_prop_table() tries therefore to allocate 16M (order 12 if
pagesize=4k), which triggers the warning.
As said by MarcL
Capping lpi_id_bits at 16 (which is what we had before) is plenty,
will save a some memory, and gives some margin before we need to push
it up again.
Bring the upper limit of lpi_id_bits back to prevent
Fixes: fe8e93504ce8 ("irqchip/gic-v3-its: Use full range of LPIs") Suggested-by: Marc Zyngier <marc.zyngier@arm.com> Signed-off-by: Jia He <jia.he@hxt-semitech.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Marc Zyngier <marc.zyngier@arm.com> Tested-by: Olof Johansson <olof@lixom.net> Cc: Jason Cooper <jason@lakedaemon.net> Cc: linux-arm-kernel@lists.infradead.org Link: https://lkml.kernel.org/r/1535432006-2304-1-git-send-email-jia.he@hxt-semitech.com
Fix trivial use-after-free. This could be last reference to bfqg.
Fixes: 8f9bebc33dd7 ("block, bfq: access and cache blkg data only when safe") Acked-by: Paolo Valente <paolo.valente@linaro.org> Signed-off-by: Konstantin Khlebnikov <khlebnikov@yandex-team.ru> Signed-off-by: Jens Axboe <axboe@kernel.dk>
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