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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull locking fixes from Thomas Gleixner:
"Two more places which invoke tracing from RCU disabled regions in the
idle path.
Similar to the entry path the low level idle functions have to be
non-instrumentable"
* tag 'locking-urgent-2020-11-29' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
intel_idle: Fix intel_idle() vs tracing
sched/idle: Fix arch_cpu_idle() vs tracing
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git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull ARM SoC fixes from Arnd Bergmann:
"Another set of patches for devicetree files and Arm SoC specific
drivers:
- A fix for OP-TEE shared memory on non-SMP systems
- multiple code fixes for the OMAP platform, including one regression
for the CPSW network driver and a few runtime warning fixes
- Some DT patches for the Rockchip RK3399 platform, in particular
fixing the MMC device ordering that recently became
nondeterministic with async probe.
- Multiple DT fixes for the Tegra platform, including a regression
fix for suspend/resume on TX2
- A regression fix for a user-triggered fault in the NXP dpio driver
- A regression fix for a bug caused by an earlier bug fix in the
xilinx firmware driver
- Two more DTC warning fixes
- Sylvain Lemieux steps down as maintainer for the NXP LPC32xx
platform"
* tag 'arm-soc-fixes-v5.10-3' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (24 commits)
arm64: tegra: Fix Tegra234 VDK node names
arm64: tegra: Wrong AON HSP reg property size
arm64: tegra: Fix USB_VBUS_EN0 regulator on Jetson TX1
arm64: tegra: Correct the UART for Jetson Xavier NX
arm64: tegra: Disable the ACONNECT for Jetson TX2
optee: add writeback to valid memory type
firmware: xilinx: Use hash-table for api feature check
firmware: xilinx: Fix SD DLL node reset issue
soc: fsl: dpio: Get the cpumask through cpumask_of(cpu)
ARM: dts: dra76x: m_can: fix order of clocks
bus: ti-sysc: suppress err msg for timers used as clockevent/source
MAINTAINERS: Remove myself as LPC32xx maintainers
arm64: dts: qcom: clear the warnings caused by empty dma-ranges
arm64: dts: broadcom: clear the warnings caused by empty dma-ranges
ARM: dts: am437x-l4: fix compatible for cpsw switch dt node
arm64: dts: rockchip: Reorder LED triggers from mmc devices on rk3399-roc-pc.
arm64: dts: rockchip: Assign a fixed index to mmc devices on rk3399 boards.
arm64: dts: rockchip: Remove system-power-controller from pmic on Odroid Go Advance
arm64: dts: rockchip: fix NanoPi R2S GMAC clock name
ARM: OMAP2+: Manage MPU state properly for omap_enter_idle_coupled()
...
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Pull kvm fixes from Paolo Bonzini:
"ARM:
- Fix alignment of the new HYP sections
- Fix GICR_TYPER access from userspace
S390:
- do not reset the global diag318 data for per-cpu reset
- do not mark memory as protected too early
- fix for destroy page ultravisor call
x86:
- fix for SEV debugging
- fix incorrect return code
- fix for 'noapic' with PIC in userspace and LAPIC in kernel
- fix for 5-level paging"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
kvm: x86/mmu: Fix get_mmio_spte() on CPUs supporting 5-level PT
KVM: x86: Fix split-irqchip vs interrupt injection window request
KVM: x86: handle !lapic_in_kernel case in kvm_cpu_*_extint
MAINTAINERS: Update email address for Sean Christopherson
MAINTAINERS: add uv.c also to KVM/s390
s390/uv: handle destroy page legacy interface
KVM: arm64: vgic-v3: Drop the reporting of GICR_TYPER.Last for userspace
KVM: SVM: fix error return code in svm_create_vcpu()
KVM: SVM: Fix offset computation bug in __sev_dbg_decrypt().
KVM: arm64: Correctly align nVHE percpu data
KVM: s390: remove diag318 reset code
KVM: s390: pv: Mark mm as protected after the set secure parameters and improve cleanup
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git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 fixes from Will Deacon:
"The main changes are relating to our handling of access/dirty bits,
where our low-level page-table helpers could lead to stale young
mappings and loss of the dirty bit in some cases (the latter has not
been observed in practice, but could happen when clearing "soft-dirty"
if we enabled that). These were posted as part of a larger series, but
the rest of that is less urgent and needs a v2 which I'll get to
shortly.
In other news, we've now got a set of fixes to resolve the
lockdep/tracing problems that have been plaguing us for a while, but
they're still a bit "fresh" and I plan to send them to you next week
after we've got some more confidence in them (although initial CI
results look good).
Summary:
- Fix kerneldoc warnings generated by ACPI IORT code
- Fix pte_accessible() so that access flag is ignored
- Fix missing header #include
- Fix loss of software dirty bit across pte_wrprotect() when HW DBM
is enabled"
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
arm64: pgtable: Ensure dirty bit is preserved across pte_wrprotect()
arm64: pgtable: Fix pte_accessible()
ACPI/IORT: Fix doc warnings in iort.c
arm64/fpsimd: add <asm/insn.h> to <asm/kprobes.h> to fix fpsimd build
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git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into kvm-master
KVM/arm64 fixes for v5.10, take #4
- Fix alignment of the new HYP sections
- Fix GICR_TYPER access from userspace
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git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux into arm/fixes
arm64: tegra: Device tree fixes for v5.10-rc6
This contains a couple of fixes to device trees. Among other things,
this restores suspend/resume on Jetson TX2 and makes USB OTG work on
Jetson TX1.
* tag 'tegra-for-5.10-arm64-dt-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux:
arm64: tegra: Fix Tegra234 VDK node names
arm64: tegra: Wrong AON HSP reg property size
arm64: tegra: Fix USB_VBUS_EN0 regulator on Jetson TX1
arm64: tegra: Correct the UART for Jetson Xavier NX
arm64: tegra: Disable the ACONNECT for Jetson TX2
Link: https://lore.kernel.org/r/20201125170306.1095734-1-thierry.reding@gmail.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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https://github.com/Xilinx/linux-xlnx into arm/fixes
arm64: soc: ZynqMP SoC fixes for v5.10-rc6
- Fix SD dll reset issue by using proper macro
- Fix PM feature checking for Xilinx Versal SoC
* tag 'zynqmp-soc-fixes-for-v5.10-rc6' of https://github.com/Xilinx/linux-xlnx: (337 commits)
firmware: xilinx: Use hash-table for api feature check
firmware: xilinx: Fix SD DLL node reset issue
Linux 5.10-rc4
kvm: mmu: fix is_tdp_mmu_check when the TDP MMU is not in use
afs: Fix afs_write_end() when called with copied == 0 [ver #3]
ocfs2: initialize ip_next_orphan
panic: don't dump stack twice on warn
hugetlbfs: fix anon huge page migration race
mm: memcontrol: fix missing wakeup polling thread
kernel/watchdog: fix watchdog_allowed_mask not used warning
reboot: fix overflow parsing reboot cpu number
Revert "kernel/reboot.c: convert simple_strtoul to kstrtoint"
compiler.h: fix barrier_data() on clang
mm/gup: use unpin_user_pages() in __gup_longterm_locked()
mm/slub: fix panic in slab_alloc_node()
mailmap: fix entry for Dmitry Baryshkov/Eremin-Solenikov
mm/vmscan: fix NR_ISOLATED_FILE corruption on 64-bit
mm/compaction: stop isolation if too many pages are isolated and we have pages to migrate
mm/compaction: count pages and stop correctly during page isolation
drm/nouveau/kms/nv50-: Use atomic encoder callbacks everywhere
...
Link: https://lore.kernel.org/r/fd5ab967-f3cf-95fb-7947-5477ff85f97e@monstr.eu
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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When the device-tree board file was added for the Tegra234 VDK simulator
it incorrectly used the names 'cbb' and 'sdhci' instead of 'bus' and
'mmc', respectively. The names 'bus' and 'mmc' are required by the
device-tree json-schema validation tools. Therefore, fix this by
renaming these nodes accordingly.
Fixes: 639448912ba1 ("arm64: tegra: Initial Tegra234 VDK support")
Reported-by: Ashish Singhal <ashishsingha@nvidia.com>
Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
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The AON HSP node's "reg" property size 0xa0000 will overlap with other
resources. This patch fixes that wrong value with correct size 0x90000.
Reviewed-by: Mikko Perttunen <mperttunen@nvidia.com>
Signed-off-by: Dipen Patel <dipenp@nvidia.com>
Fixes: a38570c22e9d ("arm64: tegra: Add nodes for TCU on Tegra194")
Signed-off-by: Thierry Reding <treding@nvidia.com>
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USB host mode is broken on the OTG port of Jetson TX1 platform because
the USB_VBUS_EN0 regulator (regulator@11) is being overwritten by the
vdd-cam-1v2 regulator. This commit rearranges USB_VBUS_EN0 to be
regulator@14.
Fixes: 257c8047be44 ("arm64: tegra: jetson-tx1: Add camera supplies")
Cc: stable@vger.kernel.org
Signed-off-by: JC Kuo <jckuo@nvidia.com>
Reviewed-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
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The Jetson Xavier NX board routes UARTA to the 40-pin header and UARTC
to a 12-pin debug header. The UARTs can be used by either the Tegra
Combined UART (TCU) driver or the Tegra 8250 driver. By default, the
TCU will use UARTC on Jetson Xavier NX. Currently, device-tree for
Xavier NX enables the TCU and the Tegra 8250 node for UARTC. Fix this
by disabling the Tegra 8250 node for UARTC and enabling the Tegra 8250
node for UARTA.
Fixes: 3f9efbbe57bc ("arm64: tegra: Add support for Jetson Xavier NX")
Cc: stable@vger.kernel.org
Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
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Commit ff4c371d2bc0 ("arm64: defconfig: Build ADMA and ACONNECT driver")
enable the Tegra ADMA and ACONNECT drivers and this is causing resume
from system suspend to fail on Jetson TX2. Resume is failing because the
ACONNECT driver is being resumed before the BPMP driver, and the ACONNECT
driver is attempting to power on a power-domain that is provided by the
BPMP. While a proper fix for the resume sequencing problem is identified,
disable the ACONNECT for Jetson TX2 temporarily to avoid breaking system
suspend.
Please note that ACONNECT driver is used by the Audio Processing Engine
(APE) on Tegra, but because there is no mainline support for APE on
Jetson TX2 currently, disabling the ACONNECT does not disable any useful
feature at the moment.
Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
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We call arch_cpu_idle() with RCU disabled, but then use
local_irq_{en,dis}able(), which invokes tracing, which relies on RCU.
Switch all arch_cpu_idle() implementations to use
raw_local_irq_{en,dis}able() and carefully manage the
lockdep,rcu,tracing state like we do in entry.
(XXX: we really should change arch_cpu_idle() to not return with
interrupts enabled)
Reported-by: Sven Schnelle <svens@linux.ibm.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Mark Rutland <mark.rutland@arm.com>
Tested-by: Mark Rutland <mark.rutland@arm.com>
Link: https://lkml.kernel.org/r/20201120114925.594122626@infradead.org
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git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip into arm/fixes
Fixed ordering for MMC devices on rk3399, due to a mmc change jumbling
all ordering, a fix to make the Odroig Go Advance actually power down
and using the correct clock name on the NanoPi R2S.
* tag 'v5.10-rockchip-dtsfixes1' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip:
arm64: dts: rockchip: Reorder LED triggers from mmc devices on rk3399-roc-pc.
arm64: dts: rockchip: Assign a fixed index to mmc devices on rk3399 boards.
arm64: dts: rockchip: Remove system-power-controller from pmic on Odroid Go Advance
arm64: dts: rockchip: fix NanoPi R2S GMAC clock name
Link: https://lore.kernel.org/r/11641389.O9o76ZdvQC@phil
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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With hardware dirty bit management, calling pte_wrprotect() on a writable,
dirty PTE will lose the dirty state and return a read-only, clean entry.
Move the logic from ptep_set_wrprotect() into pte_wrprotect() to ensure that
the dirty bit is preserved for writable entries, as this is required for
soft-dirty bit management if we enable it in the future.
Cc: <stable@vger.kernel.org>
Fixes: 2f4b829c625e ("arm64: Add support for hardware updates of the access and dirty pte bits")
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Link: https://lore.kernel.org/r/20201120143557.6715-3-will@kernel.org
Signed-off-by: Will Deacon <will@kernel.org>
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pte_accessible() is used by ptep_clear_flush() to figure out whether TLB
invalidation is necessary when unmapping pages for reclaim. Although our
implementation is correct according to the architecture, returning true
only for valid, young ptes in the absence of racing page-table
modifications, this is in fact flawed due to lazy invalidation of old
ptes in ptep_clear_flush_young() where we elide the expensive DSB
instruction for completing the TLB invalidation.
Rather than penalise the aging path, adjust pte_accessible() to return
true for any valid pte, even if the access flag is cleared.
Cc: <stable@vger.kernel.org>
Fixes: 76c714be0e5e ("arm64: pgtable: implement pte_accessible()")
Reported-by: Yu Zhao <yuzhao@google.com>
Acked-by: Yu Zhao <yuzhao@google.com>
Reviewed-by: Minchan Kim <minchan@kernel.org>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Link: https://lore.kernel.org/r/20201120143557.6715-2-will@kernel.org
Signed-off-by: Will Deacon <will@kernel.org>
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Adding <asm/exception.h> brought in <asm/kprobes.h> which uses
<asm/probes.h>, which uses 'pstate_check_t' so the latter needs to
#include <asm/insn.h> for this typedef.
Fixes this build error:
In file included from arch/arm64/include/asm/kprobes.h:24,
from arch/arm64/include/asm/exception.h:11,
from arch/arm64/kernel/fpsimd.c:35:
arch/arm64/include/asm/probes.h:16:2: error: unknown type name 'pstate_check_t'
16 | pstate_check_t *pstate_cc;
Fixes: c6b90d5cf637 ("arm64/fpsimd: Fix missing-prototypes in fpsimd.c")
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Will Deacon <will@kernel.org>
Cc: Tian Tao <tiantao6@hisilicon.com>
Link: https://lore.kernel.org/r/20201123044510.9942-1-rdunlap@infradead.org
Signed-off-by: Will Deacon <will@kernel.org>
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It was recently reported that if GICR_TYPER is accessed before the RD base
address is set, we'll suffer from the unset @rdreg dereferencing. Oops...
gpa_t last_rdist_typer = rdreg->base + GICR_TYPER +
(rdreg->free_index - 1) * KVM_VGIC_V3_REDIST_SIZE;
It's "expected" that users will access registers in the redistributor if
the RD has been properly configured (e.g., the RD base address is set). But
it hasn't yet been covered by the existing documentation.
Per discussion on the list [1], the reporting of the GICR_TYPER.Last bit
for userspace never actually worked. And it's difficult for us to emulate
it correctly given that userspace has the flexibility to access it any
time. Let's just drop the reporting of the Last bit for userspace for now
(userspace should have full knowledge about it anyway) and it at least
prevents kernel from panic ;-)
[1] https://lore.kernel.org/kvmarm/c20865a267e44d1e2c0d52ce4e012263@kernel.org/
Fixes: ba7b3f1275fd ("KVM: arm/arm64: Revisit Redistributor TYPER last bit computation")
Reported-by: Keqian Zhu <zhukeqian1@huawei.com>
Signed-off-by: Zenghui Yu <yuzenghui@huawei.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Link: https://lore.kernel.org/r/20201117151629.1738-1-yuzenghui@huawei.com
Cc: stable@vger.kernel.org
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The scripts/dtc/checks.c requires that the node have empty "dma-ranges"
property must have the same "#address-cells" and "#size-cells" values as
the parent node. Otherwise, the following warnings is reported:
arch/arm64/boot/dts/qcom/ipq6018.dtsi:185.3-14: Warning \
(dma_ranges_format): /soc:dma-ranges: empty "dma-ranges" property but \
its #address-cells (1) differs from / (2)
arch/arm64/boot/dts/qcom/ipq6018.dtsi:185.3-14: Warning \
(dma_ranges_format): /soc:dma-ranges: empty "dma-ranges" property but \
its #size-cells (1) differs from / (2)
Arnd Bergmann figured out why it's necessary:
Also note that the #address-cells=<1> means that any device under
this bus is assumed to only support 32-bit addressing, and DMA will
have to go through a slow swiotlb in the absence of an IOMMU.
Suggested-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20201016090833.1892-3-thunder.leizhen@huawei.com'
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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The scripts/dtc/checks.c requires that the node have empty "dma-ranges"
property must have the same "#address-cells" and "#size-cells" values as
the parent node. Otherwise, the following warnings is reported:
arch/arm64/boot/dts/broadcom/stingray/stingray-usb.dtsi:7.3-14: Warning \
(dma_ranges_format): /usb:dma-ranges: empty "dma-ranges" property but \
its #address-cells (1) differs from / (2)
arch/arm64/boot/dts/broadcom/stingray/stingray-usb.dtsi:7.3-14: Warning \
(dma_ranges_format): /usb:dma-ranges: empty "dma-ranges" property but \
its #size-cells (1) differs from / (2)
Arnd Bergmann figured out why it's necessary:
Also note that the #address-cells=<1> means that any device under
this bus is assumed to only support 32-bit addressing, and DMA will
have to go through a slow swiotlb in the absence of an IOMMU.
Suggested-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com>
Link: https://lore.kernel.org/r/20201016090833.1892-2-thunder.leizhen@huawei.com'
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull ARM SoC fixes from Arnd Bergmann:
"Around one third of the fixes this time are for dts files that list
their ethernet controller as using 'phy-mode="rgmii"' but are changed
to 'phy-mode="rgmii-id"' now, because the PHY drivers (realtek,
ksz9031, dp83867, ...) now configure the internal delay based on that
when they used to stay on the hardware default.
The long story is archived at
https://lore.kernel.org/netdev/CAMj1kXEEF_Un-4NTaD5iUN0NoZYaJQn-rPediX0S6oRiuVuW-A@mail.gmail.com/
I was trying to hold off on the bugfixes until there was a solution
that would avoid breaking all boards, but that does not seem to be
happening any time soon, so I am now sending the correct version of
the dts files to ensure that at least these machines can use their
network devices again.
The other changes this time are:
- Updating the MAINTAINER lists for Allwinner and Samsung SoCs
- Multiple i.MX8MN machines get updates for their CPU operating
points to match the data sheet
- A revert for a dts patch that caused a regression in USB support on
Odroid U3
- Two fixes for the AMD Tee driver, addressing a memory leak and
missing locking
- Mark the network subsystem on qoriq-fman3 as cache coherent for
correctness as better performance.
- Minor dts fixes elsewhere, addressing dtc warnings and similar
problems"
* tag 'arm-soc-fixes-v5.10-2' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (48 commits)
ARM: dts: exynos: revert "add input clock to CMU in Exynos4412 Odroid"
ARM: dts: imx50-evk: Fix the chip select 1 IOMUX
arm64: dts: imx8mm: fix voltage for 1.6GHz CPU operating point
ARM: dts: stm32: Keep VDDA LDO1 always on on DHCOM
ARM: dts: stm32: Enable thermal sensor support on stm32mp15xx-dhcor
ARM: dts: stm32: Define VIO regulator supply on DHCOM
ARM: dts: stm32: Fix LED5 on STM32MP1 DHCOM PDK2
ARM: dts: stm32: Fix TA3-GPIO-C key on STM32MP1 DHCOM PDK2
arm64: dts: renesas: r8a774e1: Add missing audio_clk_b
tee: amdtee: synchronize access to shm list
tee: amdtee: fix memory leak due to reset of global shm list
arm64: dts: agilex/stratix10: Fix qspi node compatible
ARM: dts: imx6q-prti6q: fix PHY address
ARM: dts: vf610-zii-dev-rev-b: Fix MDIO over clocking
arm: dts: imx6qdl-udoo: fix rgmii phy-mode for ksz9031 phy
arm64: dts imx8mn: Remove non-existent USB OTG2
arm64: dts: imx8mm-beacon-som: Fix Choppy BT audio
arm64: dts: fsl: DPAA FMan DMA operations are coherent
arm64: dts: fsl: fix endianness issue of rcpm
arm64: dts: imx8mn-evk: fix missing PMIC's interrupt line pull-up
...
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git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into arm/fixes
i.MX fixes for 5.10, round 4:
- Fix MDIO over clocking on vf610-zii-dev-rev-b board to get switch
device work reliably.
- Fix imx50-evk IOMUX for the chip select 1 to use GPIO4_13 instead of
the native CSPI_SSI function.
- Fix voltage for 1.6GHz CPU operating point on i.MX8MM to match
hardware datasheet.
- Fix phy-mode for KSZ9031 PHY on imx6qdl-udoo board.
* tag 'imx-fixes-5.10-4' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
ARM: dts: imx50-evk: Fix the chip select 1 IOMUX
arm64: dts: imx8mm: fix voltage for 1.6GHz CPU operating point
ARM: dts: vf610-zii-dev-rev-b: Fix MDIO over clocking
arm: dts: imx6qdl-udoo: fix rgmii phy-mode for ksz9031 phy
Link: https://lore.kernel.org/r/20201116090702.GM5849@dragon
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-devel into arm/fixes
Renesas fixes for v5.10
- Add missing audio clock on RZ/G2H.
* tag 'renesas-fixes-for-v5.10-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-devel:
arm64: dts: renesas: r8a774e1: Add missing audio_clk_b
Link: https://lore.kernel.org/r/20201113151229.3924165-1-geert+renesas@glider.be
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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The nVHE percpu data is partially linked but the nVHE linker script did
not align the percpu section. The PERCPU_INPUT macro would then align
the data to a page boundary:
#define PERCPU_INPUT(cacheline) \
__per_cpu_start = .; \
*(.data..percpu..first) \
. = ALIGN(PAGE_SIZE); \
*(.data..percpu..page_aligned) \
. = ALIGN(cacheline); \
*(.data..percpu..read_mostly) \
. = ALIGN(cacheline); \
*(.data..percpu) \
*(.data..percpu..shared_aligned) \
PERCPU_DECRYPTED_SECTION \
__per_cpu_end = .;
but then when the final vmlinux linking happens the hypervisor percpu
data is included after page alignment and so the offsets potentially
don't match. On my build I saw that the .hyp.data..percpu section was
at address 0x20 and then the percpu data would begin at 0x1000 (because
of the page alignment in PERCPU_INPUT), but when linked into vmlinux,
everything would be shifted down by 0x20 bytes.
This manifests as one of the CPUs getting lost when running
kvm-unit-tests or starting any VM and subsequent soft lockup on a Cortex
A72 device.
Fixes: 30c953911c43 ("kvm: arm64: Set up hyp percpu data for nVHE")
Signed-off-by: Jamie Iles <jamie@nuviainc.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Acked-by: David Brazdil <dbrazdil@google.com>
Cc: David Brazdil <dbrazdil@google.com>
Cc: Marc Zyngier <maz@kernel.org>
Cc: Will Deacon <will@kernel.org>
Link: https://lore.kernel.org/r/20201113150406.14314-1-jamie@nuviainc.com
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Pull kvm fixes from Paolo Bonzini:
"Fixes for ARM and x86, the latter especially for old processors
without two-dimensional paging (EPT/NPT)"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
kvm: mmu: fix is_tdp_mmu_check when the TDP MMU is not in use
KVM: SVM: Update cr3_lm_rsvd_bits for AMD SEV guests
KVM: x86: Introduce cr3_lm_rsvd_bits in kvm_vcpu_arch
KVM: x86: clflushopt should be treated as a no-op by emulation
KVM: arm64: Handle SCXTNUM_ELx traps
KVM: arm64: Unify trap handlers injecting an UNDEF
KVM: arm64: Allow setting of ID_AA64PFR0_EL1.CSV2 from userspace
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf fixes from Thomas Gleixner:
"A set of fixes for perf:
- A set of commits which reduce the stack usage of various perf
event handling functions which allocated large data structs on
stack causing stack overflows in the worst case
- Use the proper mechanism for detecting soft interrupts in the
recursion protection
- Make the resursion protection simpler and more robust
- Simplify the scheduling of event groups to make the code more
robust and prepare for fixing the issues vs. scheduling of
exclusive event groups
- Prevent event multiplexing and rotation for exclusive event groups
- Correct the perf event attribute exclusive semantics to take
pinned events, e.g. the PMU watchdog, into account
- Make the anythread filtering conditional for Intel's generic PMU
counters as it is not longer guaranteed to be supported on newer
CPUs. Check the corresponding CPUID leaf to make sure
- Fixup a duplicate initialization in an array which was probably
caused by the usual 'copy & paste - forgot to edit' mishap"
* tag 'perf-urgent-2020-11-15' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
perf/x86/intel/uncore: Fix Add BW copypasta
perf/x86/intel: Make anythread filter support conditional
perf: Tweak perf_event_attr::exclusive semantics
perf: Fix event multiplexing for exclusive groups
perf: Simplify group_sched_in()
perf: Simplify group_sched_out()
perf/x86: Make dummy_iregs static
perf/arch: Remove perf_sample_data::regs_user_copy
perf: Optimize get_recursion_context()
perf: Fix get_recursion_context()
perf/x86: Reduce stack usage for x86_pmu::drain_pebs()
perf: Reduce stack usage of perf_output_begin()
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git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 fixes from Will Deacon:
- Spectre/Meltdown safelisting for some Qualcomm KRYO cores
- Fix RCU splat when failing to online a CPU due to a feature mismatch
- Fix a recently introduced sparse warning in kexec()
- Fix handling of CPU erratum 1418040 for late CPUs
- Ensure hot-added memory falls within linear-mapped region
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
arm64: cpu_errata: Apply Erratum 845719 to KRYO2XX Silver
arm64: proton-pack: Add KRYO2XX silver CPUs to spectre-v2 safe-list
arm64: kpti: Add KRYO2XX gold/silver CPU cores to kpti safelist
arm64: Add MIDR value for KRYO2XX gold/silver CPU cores
arm64/mm: Validate hotplug range before creating linear mapping
arm64: smp: Tell RCU about CPUs that fail to come online
arm64: psci: Avoid printing in cpu_psci_cpu_die()
arm64: kexec_file: Fix sparse warning
arm64: errata: Fix handling of 1418040 with late CPU onlining
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git://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux into arm/fixes
Mostly some fixes for a fallout in a PHY driver that pointed out errors
in our DTs. Along with that, Jernej agreed to be a reviewer!
* tag 'sunxi-fixes-for-5.10-1' of git://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux:
arm64: dts: allwinner: h5: OrangePi Prime: Fix ethernet node
arm64: dts: allwinner: a64: bananapi-m64: Enable RGMII RX/TX delay on PHY
arm64: dts: allwinner: h5: libretech-all-h5-cc: Enable RGMII RX/TX delay on PHY
ARM: dts: sunxi: bananapi-m2-plus: Enable RGMII RX/TX delay on Ethernet PHY
ARM: dts: sun9i: Enable both RGMII RX/TX delay on Ethernet PHY
ARM: dts: sun8i: a83t: Enable both RGMII RX/TX delay on Ethernet PHY
ARM: dts: sun8i: h3: orangepi-plus2e: Enable RGMII RX/TX delay on Ethernet PHY
ARM: dts: sun7i: bananapi-m1-plus: Enable RGMII RX/TX delay on Ethernet PHY
ARM: dts: sun7i: cubietruck: Enable RGMII RX/TX delay on Ethernet PHY
ARM: dts: sun6i: a31-hummingbird: Enable RGMII RX/TX delay on Ethernet PHY
Revert "arm: sun8i: orangepi-pc-plus: Set EMAC activity LEDs to active high"
ARM: dts: sun8i: r40: bananapi-m2-ultra: Fix ethernet node
arm64: dts: allwinner: h5: OrangePi PC2: Fix ethernet node
arm64: dts: allwinner: a64: Pine64 Plus: Fix ethernet node
arm64: dts: allwinner: a64: OrangePi Win: Fix ethernet node
arm64: dts: allwinner: Pine H64: Enable both RGMII RX/TX delay
arm64: dts: allwinner: beelink-gs1: Enable both RGMII RX/TX delay
arm64: dts: allwinner: pinetab: Drop unnecessary address/size-cells information
MAINTAINERS: Add Jernej Škrabec as a reviewer for Allwinner SoCs support
Link: https://lore.kernel.org/r/d1a1a6a6-fca4-4f1b-93b3-f2f6963b4e04.lettre@localhost
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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git://git.kernel.org/pub/scm/linux/kernel/git/dinguyen/linux into arm/fixes
arm64: dts: fix for v5.10
- Fix the qspi node to have the required "jedec,spi-nor"
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into arm/fixes
i.MX fixes for 5.10, 3rd round:
- A series from Krzysztof Kozlowski to fix missing PMIC's interrupt
line pull-up for i.MX8MM and i.MX8MN boards.
- Set Bluetooth chip max-speed to 4000000 on imx8mm-beacon-som board
to fix the choppy Bluetooth audio sound.
- Remove non-existent OTG2, usbphynop2, and the usbmisc2 from i.MX8MN
device tree.
- Fix the endianness setting of RCPM node on Layerscape SoCs.
- Add the missing dma-coherent property for qoriq-fman device to improve
the performance.
- Fix the Ethernet PHY address on imx6q-prti6q board.
* tag 'imx-fixes-5.10-3' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
ARM: dts: imx6q-prti6q: fix PHY address
arm64: dts imx8mn: Remove non-existent USB OTG2
arm64: dts: imx8mm-beacon-som: Fix Choppy BT audio
arm64: dts: fsl: DPAA FMan DMA operations are coherent
arm64: dts: fsl: fix endianness issue of rcpm
arm64: dts: imx8mn-evk: fix missing PMIC's interrupt line pull-up
arm64: dts: imx8mn-ddr4-evk: fix missing PMIC's interrupt line pull-up
arm64: dts: imx8mn-var-som: fix missing PMIC's interrupt line pull-up
arm64: dts: imx8mm-evk: fix missing PMIC's interrupt line pull-up
arm64: dts: imx8mm-beacon-som: fix missing PMIC's interrupt line pull-up
arm64: dts: imx8mm-var-som: fix missing PMIC's interrupt line pull-up
Link: https://lore.kernel.org/r/20201030151821.GA28266@dragon
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD
KVM/arm64 fixes for v5.10, take #3
- Allow userspace to downgrade ID_AA64PFR0_EL1.CSV2
- Inject UNDEF on SCXTNUM_ELx access
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QCOM KRYO2XX Silver cores are Cortex-A53 based and are
susceptible to the 845719 erratum. Add them to the lookup
list to apply the erratum.
Signed-off-by: Konrad Dybcio <konrad.dybcio@somainline.org>
Link: https://lore.kernel.org/r/20201104232218.198800-5-konrad.dybcio@somainline.org
Signed-off-by: Will Deacon <will@kernel.org>
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KRYO2XX silver (LITTLE) CPUs are based on Cortex-A53
and they are not affected by spectre-v2.
Signed-off-by: Konrad Dybcio <konrad.dybcio@somainline.org>
Link: https://lore.kernel.org/r/20201104232218.198800-4-konrad.dybcio@somainline.org
Signed-off-by: Will Deacon <will@kernel.org>
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QCOM KRYO2XX gold (big) silver (LITTLE) CPU cores are based on
Cortex-A73 and Cortex-A53 respectively and are meltdown safe,
hence add them to kpti_safe_list[].
Signed-off-by: Konrad Dybcio <konrad.dybcio@somainline.org>
Link: https://lore.kernel.org/r/20201104232218.198800-3-konrad.dybcio@somainline.org
Signed-off-by: Will Deacon <will@kernel.org>
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Add MIDR value for KRYO2XX gold (big) and silver (LITTLE)
CPU cores which are used in Qualcomm Technologies, Inc.
SoCs. This will be used to identify and apply errata
which are applicable for these CPU cores.
Signed-off-by: Konrad Dybcio <konrad.dybcio@somainline.org>
Link: https://lore.kernel.org/r/20201104232218.198800-2-konrad.dybcio@somainline.org
Signed-off-by: Will Deacon <will@kernel.org>
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During memory hotplug process, the linear mapping should not be created for
a given memory range if that would fall outside the maximum allowed linear
range. Else it might cause memory corruption in the kernel virtual space.
Maximum linear mapping region is [PAGE_OFFSET..(PAGE_END -1)] accommodating
both its ends but excluding PAGE_END. Max physical range that can be mapped
inside this linear mapping range, must also be derived from its end points.
This ensures that arch_add_memory() validates memory hot add range for its
potential linear mapping requirements, before creating it with
__create_pgd_mapping().
Fixes: 4ab215061554 ("arm64: Add memory hotplug support")
Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com>
Reviewed-by: Ard Biesheuvel <ardb@kernel.org>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Ard Biesheuvel <ardb@kernel.org>
Cc: Steven Price <steven.price@arm.com>
Cc: Robin Murphy <robin.murphy@arm.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Link: https://lore.kernel.org/r/1605252614-761-1-git-send-email-anshuman.khandual@arm.com
Signed-off-by: Will Deacon <will@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Jakub Kicinski:
"Current release - regressions:
- arm64: dts: fsl-ls1028a-kontron-sl28: specify in-band mode for
ENETC
Current release - bugs in new features:
- mptcp: provide rmem[0] limit offset to fix oops
Previous release - regressions:
- IPv6: Set SIT tunnel hard_header_len to zero to fix path MTU
calculations
- lan743x: correctly handle chips with internal PHY
- bpf: Don't rely on GCC __attribute__((optimize)) to disable GCSE
- mlx5e: Fix VXLAN port table synchronization after function reload
Previous release - always broken:
- bpf: Zero-fill re-used per-cpu map element
- fix out-of-order UDP packets when forwarding with UDP GSO fraglists
turned on:
- fix UDP header access on Fast/frag0 UDP GRO
- fix IP header access and skb lookup on Fast/frag0 UDP GRO
- ethtool: netlink: add missing netdev_features_change() call
- net: Update window_clamp if SOCK_RCVBUF is set
- igc: Fix returning wrong statistics
- ch_ktls: fix multiple leaks and corner cases in Chelsio TLS offload
- tunnels: Fix off-by-one in lower MTU bounds for ICMP/ICMPv6 replies
- r8169: disable hw csum for short packets on all chip versions
- vrf: Fix fast path output packet handling with async Netfilter
rules"
* tag 'net-5.10-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (65 commits)
lan743x: fix use of uninitialized variable
net: udp: fix IP header access and skb lookup on Fast/frag0 UDP GRO
net: udp: fix UDP header access on Fast/frag0 UDP GRO
devlink: Avoid overwriting port attributes of registered port
vrf: Fix fast path output packet handling with async Netfilter rules
cosa: Add missing kfree in error path of cosa_write
net: switch to the kernel.org patchwork instance
ch_ktls: stop the txq if reaches threshold
ch_ktls: tcb update fails sometimes
ch_ktls/cxgb4: handle partial tag alone SKBs
ch_ktls: don't free skb before sending FIN
ch_ktls: packet handling prior to start marker
ch_ktls: Correction in middle record handling
ch_ktls: missing handling of header alone
ch_ktls: Correction in trimmed_len calculation
cxgb4/ch_ktls: creating skbs causes panic
ch_ktls: Update cheksum information
ch_ktls: Correction in finding correct length
cxgb4/ch_ktls: decrypted bit is not enough
net/x25: Fix null-ptr-deref in x25_connect
...
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As the kernel never sets HCR_EL2.EnSCXT, accesses to SCXTNUM_ELx
will trap to EL2. Let's handle that as gracefully as possible
by injecting an UNDEF exception into the guest. This is consistent
with the guest's view of ID_AA64PFR0_EL1.CSV2 being at most 1.
Signed-off-by: Marc Zyngier <maz@kernel.org>
Acked-by: Will Deacon <will@kernel.org>
Link: https://lore.kernel.org/r/20201110141308.451654-4-maz@kernel.org
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A large number of system register trap handlers only inject an
UNDEF exeption, and yet each class of sysreg seems to provide its
own, identical function.
Let's unify them all, saving us introducing yet another one later.
Signed-off-by: Marc Zyngier <maz@kernel.org>
Acked-by: Will Deacon <will@kernel.org>
Link: https://lore.kernel.org/r/20201110141308.451654-3-maz@kernel.org
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We now expose ID_AA64PFR0_EL1.CSV2=1 to guests running on hosts
that are immune to Spectre-v2, but that don't have this field set,
most likely because they predate the specification.
However, this prevents the migration of guests that have started on
a host the doesn't fake this CSV2 setting to one that does, as KVM
rejects the write to ID_AA64PFR0_EL2 on the grounds that it isn't
what is already there.
In order to fix this, allow userspace to set this field as long as
this doesn't result in a promising more than what is already there
(setting CSV2 to 0 is acceptable, but setting it to 1 when it is
already set to 0 isn't).
Fixes: e1026237f9067 ("KVM: arm64: Set CSV2 for guests on hardware unaffected by Spectre-v2")
Reported-by: Peng Liang <liangpeng10@huawei.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Acked-by: Will Deacon <will@kernel.org>
Link: https://lore.kernel.org/r/20201110141308.451654-2-maz@kernel.org
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Linux 5.10-rc1
Signed-off-by: Marc Zyngier <maz@kernel.org>
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Since commit 71b77a7a27a3 ("enetc: Migrate to PHYLINK and PCS_LYNX") the
network port of the Kontron sl28 board is broken. After the migration to
phylink the device tree has to specify the in-band-mode property. Add
it.
Fixes: 71b77a7a27a3 ("enetc: Migrate to PHYLINK and PCS_LYNX")
Suggested-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: Michael Walle <michael@walle.cc>
Reviewed-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Link: https://lore.kernel.org/r/20201109110436.5906-1-michael@walle.cc
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Commit ce3d31ad3cac ("arm64/smp: Move rcu_cpu_starting() earlier") ensured
that RCU is informed early about incoming CPUs that might end up calling
into printk() before they are online. However, if such a CPU fails the
early CPU feature compatibility checks in check_local_cpu_capabilities(),
then it will be powered off or parked without informing RCU, leading to
an endless stream of stalls:
| rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
| rcu: 2-O...: (0 ticks this GP) idle=002/1/0x4000000000000000 softirq=0/0 fqs=2593
| (detected by 0, t=5252 jiffies, g=9317, q=136)
| Task dump for CPU 2:
| task:swapper/2 state:R running task stack: 0 pid: 0 ppid: 1 flags:0x00000028
| Call trace:
| ret_from_fork+0x0/0x30
Ensure that the dying CPU invokes rcu_report_dead() prior to being powered
off or parked.
Cc: Qian Cai <cai@redhat.com>
Cc: "Paul E. McKenney" <paulmck@kernel.org>
Reviewed-by: Paul E. McKenney <paulmck@kernel.org>
Suggested-by: Qian Cai <cai@redhat.com>
Link: https://lore.kernel.org/r/20201105222242.GA8842@willie-the-truck
Link: https://lore.kernel.org/r/20201106103602.9849-3-will@kernel.org
Signed-off-by: Will Deacon <will@kernel.org>
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cpu_psci_cpu_die() is called in the context of the dying CPU, which
will no longer be online or tracked by RCU. It is therefore not generally
safe to call printk() if the PSCI "cpu off" request fails, so remove the
pr_crit() invocation.
Cc: Qian Cai <cai@redhat.com>
Cc: "Paul E. McKenney" <paulmck@kernel.org>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Link: https://lore.kernel.org/r/20201106103602.9849-2-will@kernel.org
Signed-off-by: Will Deacon <will@kernel.org>
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Sparse gets cross about us returning 0 from image_load(), which has a
return type of 'void *':
>> arch/arm64/kernel/kexec_image.c:130:16: sparse: sparse: Using plain integer as NULL pointer
Return NULL instead, as we don't use the return value for anything if it
does not indicate an error.
Cc: Benjamin Gwin <bgwin@google.com>
Reported-by: kernel test robot <lkp@intel.com>
Fixes: 108aa503657e ("arm64: kexec_file: try more regions if loading segments fails")
Link: https://lore.kernel.org/r/202011091736.T0zH8kaC-lkp@intel.com
Signed-off-by: Will Deacon <will@kernel.org>
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In a surprising turn of events, it transpires that CPU capabilities
configured as ARM64_CPUCAP_WEAK_LOCAL_CPU_FEATURE are never set as the
result of late-onlining. Therefore our handling of erratum 1418040 does
not get activated if it is not required by any of the boot CPUs, even
though we allow late-onlining of an affected CPU.
In order to get things working again, replace the cpus_have_const_cap()
invocation with an explicit check for the current CPU using
this_cpu_has_cap().
Cc: Sai Prakash Ranjan <saiprakash.ranjan@codeaurora.org>
Cc: Stephen Boyd <swboyd@chromium.org>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Acked-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20201106114952.10032-1-will@kernel.org
Signed-off-by: Will Deacon <will@kernel.org>
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The datasheet for both the industrial and consumer variant of the
SoC lists a typical voltage of 0.95V for the 1.6GHz CPU operating
point.
Fixes: e85c9d0faa75 (arm64: dts: imx8mm: Add cpufreq properties)
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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Pull kvm fixes from Paolo Bonzini:
"ARM:
- fix compilation error when PMD and PUD are folded
- fix regression in reads-as-zero behaviour of ID_AA64ZFR0_EL1
- add aarch64 get-reg-list test
x86:
- fix semantic conflict between two series merged for 5.10
- fix (and test) enforcement of paravirtual cpuid features
selftests:
- various cleanups to memory management selftests
- new selftests testcase for performance of dirty logging"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (30 commits)
KVM: selftests: allow two iterations of dirty_log_perf_test
KVM: selftests: Introduce the dirty log perf test
KVM: selftests: Make the number of vcpus global
KVM: selftests: Make the per vcpu memory size global
KVM: selftests: Drop pointless vm_create wrapper
KVM: selftests: Add wrfract to common guest code
KVM: selftests: Simplify demand_paging_test with timespec_diff_now
KVM: selftests: Remove address rounding in guest code
KVM: selftests: Factor code out of demand_paging_test
KVM: selftests: Use a single binary for dirty/clear log test
KVM: selftests: Always clear dirty bitmap after iteration
KVM: selftests: Add blessed SVE registers to get-reg-list
KVM: selftests: Add aarch64 get-reg-list test
selftests: kvm: test enforcement of paravirtual cpuid features
selftests: kvm: Add exception handling to selftests
selftests: kvm: Clear uc so UCALL_NONE is being properly reported
selftests: kvm: Fix the segment descriptor layout to match the actual layout
KVM: x86: handle MSR_IA32_DEBUGCTLMSR with report_ignored_msrs
kvm: x86: request masterclock update any time guest uses different msr
kvm: x86: ensure pv_cpuid.features is initialized when enabling cap
...
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struct perf_sample_data lives on-stack, we should be careful about it's
size. Furthermore, the pt_regs copy in there is only because x86_64 is a
trainwreck, solve it differently.
Reported-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Tested-by: Steven Rostedt <rostedt@goodmis.org>
Link: https://lkml.kernel.org/r/20201030151955.258178461@infradead.org
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