Commit Graph

326 Commits

Author SHA1 Message Date
Reiji Watanabe
e97e339a68 UPSTREAM: arm64: arm64_ftr_reg->name may not be a human-readable string
The id argument of ARM64_FTR_REG_OVERRIDE() is used for two purposes:
one as the system register encoding (used for the sys_id field of
__ftr_reg_entry), and the other as the register name (stringified
and used for the name field of arm64_ftr_reg), which is debug
information. The id argument is supposed to be a macro that
indicates an encoding of the register (eg. SYS_ID_AA64PFR0_EL1, etc).

ARM64_FTR_REG(), which also has the same id argument,
uses ARM64_FTR_REG_OVERRIDE() and passes the id to the macro.
Since the id argument is completely macro-expanded before it is
substituted into a macro body of ARM64_FTR_REG_OVERRIDE(),
the stringified id in the body of ARM64_FTR_REG_OVERRIDE is not
a human-readable register name, but a string of numeric bitwise
operations.

Fix this so that human-readable register names are available as
debug information.

Fixes: 8f266a5d878a ("arm64: cpufeature: Add global feature override facility")
Signed-off-by: Reiji Watanabe <reijiw@google.com>
Reviewed-by: Oliver Upton <oupton@google.com>
Acked-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211101045421.2215822-1-reijiw@google.com
Signed-off-by: Will Deacon <will@kernel.org>
(cherry picked from commit 9dc232a8ab18bb20f1dcb03c8e049e3607f3ed15)
Bug: 187129171
Signed-off-by: Connor O'Brien <connoro@google.com>
Change-Id: I53c28eabd5a7e5499cf62a17e4d4d826130c2562
2022-02-11 17:30:25 -08:00
James Morse
2aba795b31 FROMLIST: arm64: cpufeature: List early Cortex-A510 parts as having broken dbm
Versions of Cortex-A510 before r0p3 are affected by a hardware erratum
where the hardware update of the dirty bit is not correctly ordered.

Add these cpus to the cpu_has_broken_dbm list.

Cc: stable@vger.kernel.org
Signed-off-by: James Morse <james.morse@arm.com>

Bug: 208481398
Link: https://lore.kernel.org/all/20220125154040.549272-3-james.morse@arm.com/
Change-Id: I6ad53c88c034f49f43e61aa2ff3547990583c654
Signed-off-by: Elliot Berman <quic_eberman@quicinc.com>
2022-01-27 17:50:33 +00:00
Yee Lee
58f1839adc FROMGIT: arm64/cpufeature: Optionally disable MTE via command-line
MTE support needs to be optionally disabled in runtime
for HW issue workaround, FW development and some
evaluation works on system resource and performance.

This patch makes two changes:
(1) moves init of tag-allocation bits(ATA/ATA0) to
cpu_enable_mte() as not cached in TLB.

(2) allows ID_AA64PFR1_EL1.MTE to be overridden on
its shadow value by giving "arm64.nomte" on cmdline.

When the feature value is off, ATA and TCF will not set
and the related functionalities are accordingly suppressed.

Change-Id: Ic9cf6d3a12a33b312643d96101c72a657cb714af
Link: https://lore.kernel.org/lkml/20210803070824.7586-2-yee.lee@mediatek.com/
(cherry picked from commit 7a062ce31807eb402c38edbec50c1b848b4298f3 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git next)
Bug: 195507092
Suggested-by: Catalin Marinas <catalin.marinas@arm.com>
Suggested-by: Marc Zyngier <maz@kernel.org>
Suggested-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Yee Lee <yee.lee@mediatek.com>
2021-08-05 07:21:22 +00:00
Will Deacon
73599c263e ANDROID: Fix compat hwcap reporting on asymmetric 32-bit SoCs
When support for asymmetric 32-bit SoCs is enabled on the kernel
command-line, system_supports_32bit_el0() will always return true since
a late-onlined CPU could introduce the need for 32-bit support.

In order to avoid checking for the presence of compat hwcaps on
64-bit-only CPUs, adjust the verification of compat hwcaps for
late-onlined CPUs so that it is only performed for CPUs which actually
have 32-bit support. This allows late CPU hotplug of 64-bit-only CPUs on
a mismatched system. When mismatched support is not enabled,
incompatible CPUs are preventing from coming online by the CPU
capability.

Bug: 186482502
Change-Id: I22c285a54dbf9abb1a35e2bb608e5a41517f0ad0
Signed-off-by: Will Deacon <willdeacon@google.com>
2021-05-17 13:24:12 +00:00
Will Deacon
ea2c091f13 ANDROID: arm64: Initialise mismatched compat hwcaps from CPU notifier
When CPUs with mismatched support for 32-bit EL0 are detected early,
before the system capabilities are finalised, then initialisation of
the compat hwcaps is left to the boot CPU to configure as it would do
for a system without a mismatch.

Unfortunately, this initialisation is only carried out if
system_supports_32bit_el0(), which isn't initialised until later in the
boot process via a CPU hotplug notifier. Consequently, the compat hwcaps
reported do not necessarily indicate all of the CPU features available.

Move the initialisation of compat hwcaps to the CPU hotplug notifier
itself so that we can ensure that they are configured as soon as we have
detected a mismatch.

Bug: 186482502
Cc: Quentin Perret <qperret@google.com>
Cc: Huang Yiwei <hyiwei@codeaurora.org>
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: I54edcc34f96be9dec15aa44407441c0227c17753
2021-04-29 08:13:45 +00:00
Park Bumgyu
6f6d8bb444 ANDROID: arm64: declare system_32bit_el0_cpumask as export
To know whether CPU supports 32bit el0 or not at module, declare
system_32bit_el0_cpumask as EXPORT_SYMBOL_GPL.

Bug: 184233663

Signed-off-by: Park Bumgyu <bumgyu.park@samsung.com>
Change-Id: Ia329a5cf35c0f2a40b8088b0c1facad2532b5a0b
2021-04-13 12:28:44 +00:00
Marc Zyngier
2b123e3f30 FROMGIT: KVM: arm64: Drop the CPU_FTR_REG_HYP_COPY infrastructure
Now that the read_ctr macro has been specialised for nVHE,
the whole CPU_FTR_REG_HYP_COPY infrastrcture looks completely
overengineered.

Simplify it by populating the two u64 quantities (MMFR0 and 1)
that the hypervisor need.

Bug: 178098380
Reviewed-by: Quentin Perret <qperret@google.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
(cherry picked from commit 7c4199375ae347449fbde43cc8bf174ae6383d8e
 git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm.git next)
Signed-off-by: Quentin Perret <qperret@google.com>
Change-Id: Iaec199ce66316933922fa02660a7216f6420f35c
2021-03-31 08:23:28 +00:00
Quentin Perret
37b5552dfb FROMLIST: KVM: arm64: Enable access to sanitized CPU features at EL2
Introduce the infrastructure in KVM enabling to copy CPU feature
registers into EL2-owned data-structures, to allow reading sanitised
values directly at EL2 in nVHE.

Given that only a subset of these features are being read by the
hypervisor, the ones that need to be copied are to be listed under
<asm/kvm_cpufeature.h> together with the name of the nVHE variable that
will hold the copy. This introduces only the infrastructure enabling
this copy. The first users will follow shortly.

Signed-off-by: Quentin Perret <qperret@google.com>
Link: https://lore.kernel.org/r/20210315143536.214621-14-qperret@google.com
Bug: 178098380
Change-Id: I20b08439434b1f6f1c48230b60ce113063c0757f
2021-03-17 18:48:49 +00:00
Greg Kroah-Hartman
d8c7f0a3cd Merge 5.10.20 into android12-5.10
Changes in 5.10.20
	vmlinux.lds.h: add DWARF v5 sections
	vdpa/mlx5: fix param validation in mlx5_vdpa_get_config()
	debugfs: be more robust at handling improper input in debugfs_lookup()
	debugfs: do not attempt to create a new file before the filesystem is initalized
	scsi: libsas: docs: Remove notify_ha_event()
	scsi: qla2xxx: Fix mailbox Ch erroneous error
	kdb: Make memory allocations more robust
	w1: w1_therm: Fix conversion result for negative temperatures
	PCI: qcom: Use PHY_REFCLK_USE_PAD only for ipq8064
	PCI: Decline to resize resources if boot config must be preserved
	virt: vbox: Do not use wait_event_interruptible when called from kernel context
	bfq: Avoid false bfq queue merging
	ALSA: usb-audio: Fix PCM buffer allocation in non-vmalloc mode
	MIPS: vmlinux.lds.S: add missing PAGE_ALIGNED_DATA() section
	vmlinux.lds.h: Define SANTIZER_DISCARDS with CONFIG_GCOV_KERNEL=y
	random: fix the RNDRESEEDCRNG ioctl
	ALSA: pcm: Call sync_stop at disconnection
	ALSA: pcm: Assure sync with the pending stop operation at suspend
	ALSA: pcm: Don't call sync_stop if it hasn't been stopped
	drm/i915/gt: One more flush for Baytrail clear residuals
	ath10k: Fix error handling in case of CE pipe init failure
	Bluetooth: btqcomsmd: Fix a resource leak in error handling paths in the probe function
	Bluetooth: hci_uart: Fix a race for write_work scheduling
	Bluetooth: Fix initializing response id after clearing struct
	arm64: dts: renesas: beacon kit: Fix choppy Bluetooth Audio
	arm64: dts: renesas: beacon: Fix audio-1.8V pin enable
	ARM: dts: exynos: correct PMIC interrupt trigger level on Artik 5
	ARM: dts: exynos: correct PMIC interrupt trigger level on Monk
	ARM: dts: exynos: correct PMIC interrupt trigger level on Rinato
	ARM: dts: exynos: correct PMIC interrupt trigger level on Spring
	ARM: dts: exynos: correct PMIC interrupt trigger level on Arndale Octa
	ARM: dts: exynos: correct PMIC interrupt trigger level on Odroid XU3 family
	arm64: dts: exynos: correct PMIC interrupt trigger level on TM2
	arm64: dts: exynos: correct PMIC interrupt trigger level on Espresso
	memory: mtk-smi: Fix PM usage counter unbalance in mtk_smi ops
	Bluetooth: hci_qca: Fix memleak in qca_controller_memdump
	staging: vchiq: Fix bulk userdata handling
	staging: vchiq: Fix bulk transfers on 64-bit builds
	arm64: dts: qcom: msm8916-samsung-a5u: Fix iris compatible
	net: stmmac: dwmac-meson8b: fix enabling the timing-adjustment clock
	bpf: Add bpf_patch_call_args prototype to include/linux/bpf.h
	bpf: Avoid warning when re-casting __bpf_call_base into __bpf_call_base_args
	firmware: arm_scmi: Fix call site of scmi_notification_exit
	arm64: dts: allwinner: A64: properly connect USB PHY to port 0
	arm64: dts: allwinner: H6: properly connect USB PHY to port 0
	arm64: dts: allwinner: Drop non-removable from SoPine/LTS SD card
	arm64: dts: allwinner: H6: Allow up to 150 MHz MMC bus frequency
	arm64: dts: allwinner: A64: Limit MMC2 bus frequency to 150 MHz
	arm64: dts: qcom: msm8916-samsung-a2015: Fix sensors
	cpufreq: brcmstb-avs-cpufreq: Free resources in error path
	cpufreq: brcmstb-avs-cpufreq: Fix resource leaks in ->remove()
	arm64: dts: rockchip: rk3328: Add clock_in_out property to gmac2phy node
	ACPICA: Fix exception code class checks
	usb: gadget: u_audio: Free requests only after callback
	arm64: dts: qcom: sdm845-db845c: Fix reset-pin of ov8856 node
	soc: qcom: socinfo: Fix an off by one in qcom_show_pmic_model()
	soc: ti: pm33xx: Fix some resource leak in the error handling paths of the probe function
	staging: media: atomisp: Fix size_t format specifier in hmm_alloc() debug statemenet
	Bluetooth: drop HCI device reference before return
	Bluetooth: Put HCI device if inquiry procedure interrupts
	memory: ti-aemif: Drop child node when jumping out loop
	ARM: dts: Configure missing thermal interrupt for 4430
	usb: dwc2: Do not update data length if it is 0 on inbound transfers
	usb: dwc2: Abort transaction after errors with unknown reason
	usb: dwc2: Make "trimming xfer length" a debug message
	staging: rtl8723bs: wifi_regd.c: Fix incorrect number of regulatory rules
	x86/MSR: Filter MSR writes through X86_IOC_WRMSR_REGS ioctl too
	arm64: dts: renesas: beacon: Fix EEPROM compatible value
	can: mcp251xfd: mcp251xfd_probe(): fix errata reference
	ARM: dts: armada388-helios4: assign pinctrl to LEDs
	ARM: dts: armada388-helios4: assign pinctrl to each fan
	arm64: dts: armada-3720-turris-mox: rename u-boot mtd partition to a53-firmware
	opp: Correct debug message in _opp_add_static_v2()
	Bluetooth: btusb: Fix memory leak in btusb_mtk_wmt_recv
	soc: qcom: ocmem: don't return NULL in of_get_ocmem
	arm64: dts: msm8916: Fix reserved and rfsa nodes unit address
	arm64: dts: meson: fix broken wifi node for Khadas VIM3L
	iwlwifi: mvm: set enabled in the PPAG command properly
	ARM: s3c: fix fiq for clang IAS
	optee: simplify i2c access
	staging: wfx: fix possible panic with re-queued frames
	ARM: at91: use proper asm syntax in pm_suspend
	ath10k: Fix suspicious RCU usage warning in ath10k_wmi_tlv_parse_peer_stats_info()
	ath10k: Fix lockdep assertion warning in ath10k_sta_statistics
	ath11k: fix a locking bug in ath11k_mac_op_start()
	soc: aspeed: snoop: Add clock control logic
	iwlwifi: mvm: fix the type we use in the PPAG table validity checks
	iwlwifi: mvm: store PPAG enabled/disabled flag properly
	iwlwifi: mvm: send stored PPAG command instead of local
	iwlwifi: mvm: assign SAR table revision to the command later
	iwlwifi: mvm: don't check if CSA event is running before removing
	bpf_lru_list: Read double-checked variable once without lock
	iwlwifi: pnvm: set the PNVM again if it was already loaded
	iwlwifi: pnvm: increment the pointer before checking the TLV
	ath9k: fix data bus crash when setting nf_override via debugfs
	selftests/bpf: Convert test_xdp_redirect.sh to bash
	ibmvnic: Set to CLOSED state even on error
	bnxt_en: reverse order of TX disable and carrier off
	bnxt_en: Fix devlink info's stored fw.psid version format.
	xen/netback: fix spurious event detection for common event case
	dpaa2-eth: fix memory leak in XDP_REDIRECT
	net: phy: consider that suspend2ram may cut off PHY power
	net/mlx5e: Don't change interrupt moderation params when DIM is enabled
	net/mlx5e: Change interrupt moderation channel params also when channels are closed
	net/mlx5: Fix health error state handling
	net/mlx5e: Replace synchronize_rcu with synchronize_net
	net/mlx5e: kTLS, Use refcounts to free kTLS RX priv context
	net/mlx5: Disable devlink reload for multi port slave device
	net/mlx5: Disallow RoCE on multi port slave device
	net/mlx5: Disallow RoCE on lag device
	net/mlx5: Disable devlink reload for lag devices
	net/mlx5e: CT: manage the lifetime of the ct entry object
	net/mlx5e: Check tunnel offload is required before setting SWP
	mac80211: fix potential overflow when multiplying to u32 integers
	libbpf: Ignore non function pointer member in struct_ops
	bpf: Fix an unitialized value in bpf_iter
	bpf, devmap: Use GFP_KERNEL for xdp bulk queue allocation
	bpf: Fix bpf_fib_lookup helper MTU check for SKB ctx
	selftests: mptcp: fix ACKRX debug message
	tcp: fix SO_RCVLOWAT related hangs under mem pressure
	net: axienet: Handle deferred probe on clock properly
	cxgb4/chtls/cxgbit: Keeping the max ofld immediate data size same in cxgb4 and ulds
	b43: N-PHY: Fix the update of coef for the PHY revision >= 3case
	bpf: Clear subreg_def for global function return values
	ibmvnic: add memory barrier to protect long term buffer
	ibmvnic: skip send_request_unmap for timeout reset
	net: dsa: felix: perform teardown in reverse order of setup
	net: dsa: felix: don't deinitialize unused ports
	net: phy: mscc: adding LCPLL reset to VSC8514
	net: amd-xgbe: Reset the PHY rx data path when mailbox command timeout
	net: amd-xgbe: Fix NETDEV WATCHDOG transmit queue timeout warning
	net: amd-xgbe: Reset link when the link never comes back
	net: amd-xgbe: Fix network fluctuations when using 1G BELFUSE SFP
	net: mvneta: Remove per-cpu queue mapping for Armada 3700
	net: enetc: fix destroyed phylink dereference during unbind
	tty: convert tty_ldisc_ops 'read()' function to take a kernel pointer
	tty: implement read_iter
	fbdev: aty: SPARC64 requires FB_ATY_CT
	drm/gma500: Fix error return code in psb_driver_load()
	gma500: clean up error handling in init
	drm/fb-helper: Add missed unlocks in setcmap_legacy()
	drm/panel: mantix: Tweak init sequence
	drm/vc4: hdmi: Take into account the clock doubling flag in atomic_check
	crypto: sun4i-ss - linearize buffers content must be kept
	crypto: sun4i-ss - fix kmap usage
	crypto: arm64/aes-ce - really hide slower algos when faster ones are enabled
	hwrng: ingenic - Fix a resource leak in an error handling path
	media: allegro: Fix use after free on error
	kcsan: Rewrite kcsan_prandom_u32_max() without prandom_u32_state()
	drm: rcar-du: Fix PM reference leak in rcar_cmm_enable()
	drm: rcar-du: Fix crash when using LVDS1 clock for CRTC
	drm: rcar-du: Fix the return check of of_parse_phandle and of_find_device_by_node
	drm/amdgpu: Fix macro name _AMDGPU_TRACE_H_ in preprocessor if condition
	MIPS: c-r4k: Fix section mismatch for loongson2_sc_init
	MIPS: lantiq: Explicitly compare LTQ_EBU_PCC_ISTAT against 0
	drm/virtio: make sure context is created in gem open
	drm/fourcc: fix Amlogic format modifier masks
	media: ipu3-cio2: Build only for x86
	media: i2c: ov5670: Fix PIXEL_RATE minimum value
	media: imx: Unregister csc/scaler only if registered
	media: imx: Fix csc/scaler unregister
	media: mtk-vcodec: fix error return code in vdec_vp9_decode()
	media: camss: missing error code in msm_video_register()
	media: vsp1: Fix an error handling path in the probe function
	media: em28xx: Fix use-after-free in em28xx_alloc_urbs
	media: media/pci: Fix memleak in empress_init
	media: tm6000: Fix memleak in tm6000_start_stream
	media: aspeed: fix error return code in aspeed_video_setup_video()
	ASoC: cs42l56: fix up error handling in probe
	ASoC: qcom: qdsp6: Move frontend AIFs to q6asm-dai
	evm: Fix memleak in init_desc
	crypto: bcm - Rename struct device_private to bcm_device_private
	sched/fair: Avoid stale CPU util_est value for schedutil in task dequeue
	drm/sun4i: tcon: fix inverted DCLK polarity
	media: imx7: csi: Fix regression for parallel cameras on i.MX6UL
	media: imx7: csi: Fix pad link validation
	media: ti-vpe: cal: fix write to unallocated memory
	MIPS: properly stop .eh_frame generation
	MIPS: Compare __SYNC_loongson3_war against 0
	drm/tegra: Fix reference leak when pm_runtime_get_sync() fails
	drm/amdgpu: toggle on DF Cstate after finishing xgmi injection
	bsg: free the request before return error code
	macintosh/adb-iop: Use big-endian autopoll mask
	drm/amd/display: Fix 10/12 bpc setup in DCE output bit depth reduction.
	drm/amd/display: Fix HDMI deep color output for DCE 6-11.
	media: software_node: Fix refcounts in software_node_get_next_child()
	media: lmedm04: Fix misuse of comma
	media: vidtv: psi: fix missing crc for PMT
	media: atomisp: Fix a buffer overflow in debug code
	media: qm1d1c0042: fix error return code in qm1d1c0042_init()
	media: cx25821: Fix a bug when reallocating some dma memory
	media: mtk-vcodec: fix argument used when DEBUG is defined
	media: pxa_camera: declare variable when DEBUG is defined
	media: uvcvideo: Accept invalid bFormatIndex and bFrameIndex values
	sched/eas: Don't update misfit status if the task is pinned
	f2fs: compress: fix potential deadlock
	ASoC: qcom: lpass-cpu: Remove bit clock state check
	ASoC: SOF: Intel: hda: cancel D0i3 work during runtime suspend
	perf/arm-cmn: Fix PMU instance naming
	perf/arm-cmn: Move IRQs when migrating context
	mtd: parser: imagetag: fix error codes in bcm963xx_parse_imagetag_partitions()
	crypto: talitos - Work around SEC6 ERRATA (AES-CTR mode data size error)
	crypto: talitos - Fix ctr(aes) on SEC1
	drm/nouveau: bail out of nouveau_channel_new if channel init fails
	mm: proc: Invalidate TLB after clearing soft-dirty page state
	ata: ahci_brcm: Add back regulators management
	ASoC: cpcap: fix microphone timeslot mask
	ASoC: codecs: add missing max_register in regmap config
	mtd: parsers: afs: Fix freeing the part name memory in failure
	f2fs: fix to avoid inconsistent quota data
	drm/amdgpu: Prevent shift wrapping in amdgpu_read_mask()
	f2fs: fix a wrong condition in __submit_bio
	ASoC: qcom: Fix typo error in HDMI regmap config callbacks
	KVM: nSVM: Don't strip host's C-bit from guest's CR3 when reading PDPTRs
	drm/mediatek: Check if fb is null
	Drivers: hv: vmbus: Avoid use-after-free in vmbus_onoffer_rescind()
	ASoC: Intel: sof_sdw: add missing TGL_HDMI quirk for Dell SKU 0A5E
	ASoC: Intel: sof_sdw: add missing TGL_HDMI quirk for Dell SKU 0A3E
	locking/lockdep: Avoid unmatched unlock
	ASoC: qcom: lpass: Fix i2s ctl register bit map
	ASoC: rt5682: Fix panic in rt5682_jack_detect_handler happening during system shutdown
	ASoC: SOF: debug: Fix a potential issue on string buffer termination
	btrfs: clarify error returns values in __load_free_space_cache
	btrfs: fix double accounting of ordered extent for subpage case in btrfs_invalidapge
	KVM: x86: Restore all 64 bits of DR6 and DR7 during RSM on x86-64
	s390/zcrypt: return EIO when msg retry limit reached
	drm/vc4: hdmi: Move hdmi reset to bind
	drm/vc4: hdmi: Fix register offset with longer CEC messages
	drm/vc4: hdmi: Fix up CEC registers
	drm/vc4: hdmi: Restore cec physical address on reconnect
	drm/vc4: hdmi: Compute the CEC clock divider from the clock rate
	drm/vc4: hdmi: Update the CEC clock divider on HSM rate change
	drm/lima: fix reference leak in lima_pm_busy
	drm/dp_mst: Don't cache EDIDs for physical ports
	hwrng: timeriomem - Fix cooldown period calculation
	crypto: ecdh_helper - Ensure 'len >= secret.len' in decode_key()
	io_uring: fix possible deadlock in io_uring_poll
	nvmet-tcp: fix receive data digest calculation for multiple h2cdata PDUs
	nvmet-tcp: fix potential race of tcp socket closing accept_work
	nvme-multipath: set nr_zones for zoned namespaces
	nvmet: remove extra variable in identify ns
	nvmet: set status to 0 in case for invalid nsid
	ASoC: SOF: sof-pci-dev: add missing Up-Extreme quirk
	ima: Free IMA measurement buffer on error
	ima: Free IMA measurement buffer after kexec syscall
	ASoC: simple-card-utils: Fix device module clock
	fs/jfs: fix potential integer overflow on shift of a int
	jffs2: fix use after free in jffs2_sum_write_data()
	ubifs: Fix memleak in ubifs_init_authentication
	ubifs: replay: Fix high stack usage, again
	ubifs: Fix error return code in alloc_wbufs()
	irqchip/imx: IMX_INTMUX should not default to y, unconditionally
	smp: Process pending softirqs in flush_smp_call_function_from_idle()
	drm/amdgpu/display: remove hdcp_srm sysfs on device removal
	capabilities: Don't allow writing ambiguous v3 file capabilities
	HSI: Fix PM usage counter unbalance in ssi_hw_init
	power: supply: cpcap: Add missing IRQF_ONESHOT to fix regression
	clk: meson: clk-pll: fix initializing the old rate (fallback) for a PLL
	clk: meson: clk-pll: make "ret" a signed integer
	clk: meson: clk-pll: propagate the error from meson_clk_pll_set_rate()
	selftests/powerpc: Make the test check in eeh-basic.sh posix compliant
	regulator: qcom-rpmh-regulator: add pm8009-1 chip revision
	arm64: dts: qcom: qrb5165-rb5: fix pm8009 regulators
	quota: Fix memory leak when handling corrupted quota file
	i2c: iproc: handle only slave interrupts which are enabled
	i2c: iproc: update slave isr mask (ISR_MASK_SLAVE)
	i2c: iproc: handle master read request
	spi: cadence-quadspi: Abort read if dummy cycles required are too many
	clk: sunxi-ng: h6: Fix CEC clock
	clk: renesas: r8a779a0: Remove non-existent S2 clock
	clk: renesas: r8a779a0: Fix parent of CBFUSA clock
	HID: core: detect and skip invalid inputs to snto32()
	RDMA/siw: Fix handling of zero-sized Read and Receive Queues.
	dmaengine: fsldma: Fix a resource leak in the remove function
	dmaengine: fsldma: Fix a resource leak in an error handling path of the probe function
	dmaengine: owl-dma: Fix a resource leak in the remove function
	dmaengine: hsu: disable spurious interrupt
	mfd: bd9571mwv: Use devm_mfd_add_devices()
	power: supply: cpcap-charger: Fix missing power_supply_put()
	power: supply: cpcap-battery: Fix missing power_supply_put()
	power: supply: cpcap-charger: Fix power_supply_put on null battery pointer
	fdt: Properly handle "no-map" field in the memory region
	of/fdt: Make sure no-map does not remove already reserved regions
	RDMA/rtrs: Extend ibtrs_cq_qp_create
	RDMA/rtrs-srv: Release lock before call into close_sess
	RDMA/rtrs-srv: Use sysfs_remove_file_self for disconnect
	RDMA/rtrs-clt: Set mininum limit when create QP
	RDMA/rtrs: Call kobject_put in the failure path
	RDMA/rtrs-srv: Fix missing wr_cqe
	RDMA/rtrs-clt: Refactor the failure cases in alloc_clt
	RDMA/rtrs-srv: Init wr_cnt as 1
	power: reset: at91-sama5d2_shdwc: fix wkupdbc mask
	rtc: s5m: select REGMAP_I2C
	dmaengine: idxd: set DMA channel to be private
	power: supply: fix sbs-charger build, needs REGMAP_I2C
	clocksource/drivers/ixp4xx: Select TIMER_OF when needed
	clocksource/drivers/mxs_timer: Add missing semicolon when DEBUG is defined
	spi: imx: Don't print error on -EPROBEDEFER
	RDMA/mlx5: Use the correct obj_id upon DEVX TIR creation
	IB/mlx5: Add mutex destroy call to cap_mask_mutex mutex
	clk: sunxi-ng: h6: Fix clock divider range on some clocks
	platform/chrome: cros_ec_proto: Use EC_HOST_EVENT_MASK not BIT
	platform/chrome: cros_ec_proto: Add LID and BATTERY to default mask
	regulator: axp20x: Fix reference cout leak
	watch_queue: Drop references to /dev/watch_queue
	certs: Fix blacklist flag type confusion
	regulator: s5m8767: Fix reference count leak
	spi: atmel: Put allocated master before return
	regulator: s5m8767: Drop regulators OF node reference
	power: supply: axp20x_usb_power: Init work before enabling IRQs
	power: supply: smb347-charger: Fix interrupt usage if interrupt is unavailable
	regulator: core: Avoid debugfs: Directory ... already present! error
	isofs: release buffer head before return
	watchdog: intel-mid_wdt: Postpone IRQ handler registration till SCU is ready
	auxdisplay: ht16k33: Fix refresh rate handling
	objtool: Fix error handling for STD/CLD warnings
	objtool: Fix retpoline detection in asm code
	objtool: Fix ".cold" section suffix check for newer versions of GCC
	scsi: lpfc: Fix ancient double free
	iommu: Switch gather->end to the inclusive end
	IB/umad: Return EIO in case of when device disassociated
	IB/umad: Return EPOLLERR in case of when device disassociated
	KVM: PPC: Make the VMX instruction emulation routines static
	powerpc/47x: Disable 256k page size
	powerpc/time: Enable sched clock for irqtime
	mmc: owl-mmc: Fix a resource leak in an error handling path and in the remove function
	mmc: sdhci-sprd: Fix some resource leaks in the remove function
	mmc: usdhi6rol0: Fix a resource leak in the error handling path of the probe
	mmc: renesas_sdhi_internal_dmac: Fix DMA buffer alignment from 8 to 128-bytes
	ARM: 9046/1: decompressor: Do not clear SCTLR.nTLSMD for ARMv7+ cores
	i2c: qcom-geni: Store DMA mapping data in geni_i2c_dev struct
	amba: Fix resource leak for drivers without .remove
	iommu: Move iotlb_sync_map out from __iommu_map
	iommu: Properly pass gfp_t in _iommu_map() to avoid atomic sleeping
	IB/mlx5: Return appropriate error code instead of ENOMEM
	IB/cm: Avoid a loop when device has 255 ports
	tracepoint: Do not fail unregistering a probe due to memory failure
	rtc: zynqmp: depend on HAS_IOMEM
	perf tools: Fix DSO filtering when not finding a map for a sampled address
	perf vendor events arm64: Fix Ampere eMag event typo
	RDMA/rxe: Fix coding error in rxe_recv.c
	RDMA/rxe: Fix coding error in rxe_rcv_mcast_pkt
	RDMA/rxe: Correct skb on loopback path
	spi: stm32: properly handle 0 byte transfer
	mfd: altera-sysmgr: Fix physical address storing more
	mfd: wm831x-auxadc: Prevent use after free in wm831x_auxadc_read_irq()
	powerpc/pseries/dlpar: handle ibm, configure-connector delay status
	powerpc/8xx: Fix software emulation interrupt
	clk: qcom: gcc-msm8998: Fix Alpha PLL type for all GPLLs
	kunit: tool: fix unit test cleanup handling
	kselftests: dmabuf-heaps: Fix Makefile's inclusion of the kernel's usr/include dir
	RDMA/hns: Fixed wrong judgments in the goto branch
	RDMA/siw: Fix calculation of tx_valid_cpus size
	RDMA/hns: Fix type of sq_signal_bits
	RDMA/hns: Disable RQ inline by default
	clk: divider: fix initialization with parent_hw
	spi: pxa2xx: Fix the controller numbering for Wildcat Point
	powerpc/uaccess: Avoid might_fault() when user access is enabled
	powerpc/kuap: Restore AMR after replaying soft interrupts
	regulator: qcom-rpmh: fix pm8009 ldo7
	clk: aspeed: Fix APLL calculate formula from ast2600-A2
	selftests/ftrace: Update synthetic event syntax errors
	perf symbols: Use (long) for iterator for bfd symbols
	regulator: bd718x7, bd71828, Fix dvs voltage levels
	spi: dw: Avoid stack content exposure
	spi: Skip zero-length transfers in spi_transfer_one_message()
	printk: avoid prb_first_valid_seq() where possible
	perf symbols: Fix return value when loading PE DSO
	nfsd: register pernet ops last, unregister first
	svcrdma: Hold private mutex while invoking rdma_accept()
	ceph: fix flush_snap logic after putting caps
	RDMA/hns: Fixes missing error code of CMDQ
	RDMA/ucma: Fix use-after-free bug in ucma_create_uevent
	RDMA/rtrs-srv: Fix stack-out-of-bounds
	RDMA/rtrs: Only allow addition of path to an already established session
	RDMA/rtrs-srv: fix memory leak by missing kobject free
	RDMA/rtrs-srv-sysfs: fix missing put_device
	RDMA/rtrs-srv: Do not pass a valid pointer to PTR_ERR()
	Input: sur40 - fix an error code in sur40_probe()
	perf record: Fix continue profiling after draining the buffer
	perf intel-pt: Fix missing CYC processing in PSB
	perf intel-pt: Fix premature IPC
	perf intel-pt: Fix IPC with CYC threshold
	perf test: Fix unaligned access in sample parsing test
	Input: elo - fix an error code in elo_connect()
	sparc64: only select COMPAT_BINFMT_ELF if BINFMT_ELF is set
	sparc: fix led.c driver when PROC_FS is not enabled
	Input: zinitix - fix return type of zinitix_init_touch()
	ARM: 9065/1: OABI compat: fix build when EPOLL is not enabled
	misc: eeprom_93xx46: Fix module alias to enable module autoprobe
	phy: rockchip-emmc: emmc_phy_init() always return 0
	phy: cadence-torrent: Fix error code in cdns_torrent_phy_probe()
	misc: eeprom_93xx46: Add module alias to avoid breaking support for non device tree users
	PCI: rcar: Always allocate MSI addresses in 32bit space
	soundwire: cadence: fix ACK/NAK handling
	pwm: rockchip: Enable APB clock during register access while probing
	pwm: rockchip: rockchip_pwm_probe(): Remove superfluous clk_unprepare()
	pwm: rockchip: Eliminate potential race condition when probing
	PCI: xilinx-cpm: Fix reference count leak on error path
	VMCI: Use set_page_dirty_lock() when unregistering guest memory
	PCI: Align checking of syscall user config accessors
	mei: hbm: call mei_set_devstate() on hbm stop response
	drm/msm: Fix MSM_INFO_GET_IOVA with carveout
	drm/msm/dsi: Correct io_start for MSM8994 (20nm PHY)
	drm/msm/mdp5: Fix wait-for-commit for cmd panels
	drm/msm: Fix race of GPU init vs timestamp power management.
	drm/msm: Fix races managing the OOB state for timestamp vs timestamps.
	drm/msm/dp: trigger unplug event in msm_dp_display_disable
	vfio/iommu_type1: Populate full dirty when detach non-pinned group
	vfio/iommu_type1: Fix some sanity checks in detach group
	vfio-pci/zdev: fix possible segmentation fault issue
	ext4: fix potential htree index checksum corruption
	phy: USB_LGM_PHY should depend on X86
	coresight: etm4x: Skip accessing TRCPDCR in save/restore
	nvmem: core: Fix a resource leak on error in nvmem_add_cells_from_of()
	nvmem: core: skip child nodes not matching binding
	soundwire: bus: use sdw_update_no_pm when initializing a device
	soundwire: bus: use sdw_write_no_pm when setting the bus scale registers
	soundwire: export sdw_write/read_no_pm functions
	soundwire: bus: fix confusion on device used by pm_runtime
	misc: fastrpc: fix incorrect usage of dma_map_sgtable
	remoteproc/mediatek: acknowledge watchdog IRQ after handled
	regmap: sdw: use _no_pm functions in regmap_read/write
	ext: EXT4_KUNIT_TESTS should depend on EXT4_FS instead of selecting it
	mailbox: sprd: correct definition of SPRD_OUTBOX_FIFO_FULL
	device-dax: Fix default return code of range_parse()
	PCI: pci-bridge-emul: Fix array overruns, improve safety
	PCI: cadence: Fix DMA range mapping early return error
	i40e: Fix flow for IPv6 next header (extension header)
	i40e: Add zero-initialization of AQ command structures
	i40e: Fix overwriting flow control settings during driver loading
	i40e: Fix addition of RX filters after enabling FW LLDP agent
	i40e: Fix VFs not created
	Take mmap lock in cacheflush syscall
	nios2: fixed broken sys_clone syscall
	i40e: Fix add TC filter for IPv6
	octeontx2-af: Fix an off by one in rvu_dbg_qsize_write()
	pwm: iqs620a: Fix overflow and optimize calculations
	vfio/type1: Use follow_pte()
	ice: report correct max number of TCs
	ice: Account for port VLAN in VF max packet size calculation
	ice: Fix state bits on LLDP mode switch
	ice: update the number of available RSS queues
	net: stmmac: fix CBS idleslope and sendslope calculation
	net/mlx4_core: Add missed mlx4_free_cmd_mailbox()
	PCI: rockchip: Make 'ep-gpios' DT property optional
	vxlan: move debug check after netdev unregister
	wireguard: device: do not generate ICMP for non-IP packets
	wireguard: kconfig: use arm chacha even with no neon
	ocfs2: fix a use after free on error
	mm: memcontrol: fix NR_ANON_THPS accounting in charge moving
	mm: memcontrol: fix slub memory accounting
	mm/memory.c: fix potential pte_unmap_unlock pte error
	mm/hugetlb: fix potential double free in hugetlb_register_node() error path
	mm/hugetlb: suppress wrong warning info when alloc gigantic page
	mm/compaction: fix misbehaviors of fast_find_migrateblock()
	r8169: fix jumbo packet handling on RTL8168e
	NFSv4: Fixes for nfs4_bitmask_adjust()
	KVM: SVM: Intercept INVPCID when it's disabled to inject #UD
	KVM: x86/mmu: Expand collapsible SPTE zap for TDP MMU to ZONE_DEVICE and HugeTLB pages
	arm64: Add missing ISB after invalidating TLB in __primary_switch
	i2c: brcmstb: Fix brcmstd_send_i2c_cmd condition
	i2c: exynos5: Preserve high speed master code
	mm,thp,shmem: make khugepaged obey tmpfs mount flags
	mm: fix memory_failure() handling of dax-namespace metadata
	mm/rmap: fix potential pte_unmap on an not mapped pte
	proc: use kvzalloc for our kernel buffer
	csky: Fix a size determination in gpr_get()
	scsi: bnx2fc: Fix Kconfig warning & CNIC build errors
	scsi: sd: sd_zbc: Don't pass GFP_NOIO to kvcalloc
	block: reopen the device in blkdev_reread_part
	ide/falconide: Fix module unload
	scsi: sd: Fix Opal support
	blk-settings: align max_sectors on "logical_block_size" boundary
	soundwire: intel: fix possible crash when no device is detected
	ACPI: property: Fix fwnode string properties matching
	ACPI: configfs: add missing check after configfs_register_default_group()
	cpufreq: ACPI: Set cpuinfo.max_freq directly if max boost is known
	HID: logitech-dj: add support for keyboard events in eQUAD step 4 Gaming
	HID: wacom: Ignore attempts to overwrite the touch_max value from HID
	Input: raydium_ts_i2c - do not send zero length
	Input: xpad - add support for PowerA Enhanced Wired Controller for Xbox Series X|S
	Input: joydev - prevent potential read overflow in ioctl
	Input: i8042 - add ASUS Zenbook Flip to noselftest list
	media: mceusb: Fix potential out-of-bounds shift
	USB: serial: option: update interface mapping for ZTE P685M
	usb: musb: Fix runtime PM race in musb_queue_resume_work
	usb: dwc3: gadget: Fix setting of DEPCFG.bInterval_m1
	usb: dwc3: gadget: Fix dep->interval for fullspeed interrupt
	USB: serial: ftdi_sio: fix FTX sub-integer prescaler
	USB: serial: pl2303: fix line-speed handling on newer chips
	USB: serial: mos7840: fix error code in mos7840_write()
	USB: serial: mos7720: fix error code in mos7720_write()
	phy: lantiq: rcu-usb2: wait after clock enable
	ALSA: fireface: fix to parse sync status register of latter protocol
	ALSA: hda: Add another CometLake-H PCI ID
	ALSA: hda/hdmi: Drop bogus check at closing a stream
	ALSA: hda/realtek: modify EAPD in the ALC886
	ALSA: hda/realtek: Quirk for HP Spectre x360 14 amp setup
	MIPS: Ingenic: Disable HPTLB for D0 XBurst CPUs too
	MIPS: Support binutils configured with --enable-mips-fix-loongson3-llsc=yes
	MIPS: VDSO: Use CLANG_FLAGS instead of filtering out '--target='
	Revert "MIPS: Octeon: Remove special handling of CONFIG_MIPS_ELF_APPENDED_DTB=y"
	Revert "bcache: Kill btree_io_wq"
	bcache: Give btree_io_wq correct semantics again
	bcache: Move journal work to new flush wq
	Revert "drm/amd/display: Update NV1x SR latency values"
	drm/amd/display: Add FPU wrappers to dcn21_validate_bandwidth()
	drm/amd/display: Remove Assert from dcn10_get_dig_frontend
	drm/amd/display: Add vupdate_no_lock interrupts for DCN2.1
	drm/amdkfd: Fix recursive lock warnings
	drm/amdgpu: Set reference clock to 100Mhz on Renoir (v2)
	drm/nouveau/kms: handle mDP connectors
	drm/modes: Switch to 64bit maths to avoid integer overflow
	drm/sched: Cancel and flush all outstanding jobs before finish.
	drm/panel: kd35t133: allow using non-continuous dsi clock
	drm/rockchip: Require the YTR modifier for AFBC
	ASoC: siu: Fix build error by a wrong const prefix
	selinux: fix inconsistency between inode_getxattr and inode_listsecurity
	erofs: initialized fields can only be observed after bit is set
	tpm_tis: Fix check_locality for correct locality acquisition
	tpm_tis: Clean up locality release
	KEYS: trusted: Fix incorrect handling of tpm_get_random()
	KEYS: trusted: Fix migratable=1 failing
	KEYS: trusted: Reserve TPM for seal and unseal operations
	btrfs: do not cleanup upper nodes in btrfs_backref_cleanup_node
	btrfs: do not warn if we can't find the reloc root when looking up backref
	btrfs: add asserts for deleting backref cache nodes
	btrfs: abort the transaction if we fail to inc ref in btrfs_copy_root
	btrfs: fix reloc root leak with 0 ref reloc roots on recovery
	btrfs: splice remaining dirty_bg's onto the transaction dirty bg list
	btrfs: handle space_info::total_bytes_pinned inside the delayed ref itself
	btrfs: account for new extents being deleted in total_bytes_pinned
	btrfs: fix extent buffer leak on failure to copy root
	drm/i915/gt: Flush before changing register state
	drm/i915/gt: Correct surface base address for renderclear
	crypto: arm64/sha - add missing module aliases
	crypto: aesni - prevent misaligned buffers on the stack
	crypto: michael_mic - fix broken misalignment handling
	crypto: sun4i-ss - checking sg length is not sufficient
	crypto: sun4i-ss - IV register does not work on A10 and A13
	crypto: sun4i-ss - handle BigEndian for cipher
	crypto: sun4i-ss - initialize need_fallback
	soc: samsung: exynos-asv: don't defer early on not-supported SoCs
	soc: samsung: exynos-asv: handle reading revision register error
	seccomp: Add missing return in non-void function
	arm64: ptrace: Fix seccomp of traced syscall -1 (NO_SYSCALL)
	misc: rtsx: init of rts522a add OCP power off when no card is present
	drivers/misc/vmw_vmci: restrict too big queue size in qp_host_alloc_queue
	pstore: Fix typo in compression option name
	dts64: mt7622: fix slow sd card access
	arm64: dts: agilex: fix phy interface bit shift for gmac1 and gmac2
	staging/mt7621-dma: mtk-hsdma.c->hsdma-mt7621.c
	staging: gdm724x: Fix DMA from stack
	staging: rtl8188eu: Add Edimax EW-7811UN V2 to device table
	floppy: reintroduce O_NDELAY fix
	media: i2c: max9286: fix access to unallocated memory
	media: ir_toy: add another IR Droid device
	media: ipu3-cio2: Fix mbus_code processing in cio2_subdev_set_fmt()
	media: marvell-ccic: power up the device on mclk enable
	media: smipcie: fix interrupt handling and IR timeout
	x86/virt: Eat faults on VMXOFF in reboot flows
	x86/reboot: Force all cpus to exit VMX root if VMX is supported
	x86/fault: Fix AMD erratum #91 errata fixup for user code
	x86/entry: Fix instrumentation annotation
	powerpc/prom: Fix "ibm,arch-vec-5-platform-support" scan
	rcu: Pull deferred rcuog wake up to rcu_eqs_enter() callers
	rcu/nocb: Perform deferred wake up before last idle's need_resched() check
	kprobes: Fix to delay the kprobes jump optimization
	arm64: Extend workaround for erratum 1024718 to all versions of Cortex-A55
	iommu/arm-smmu-qcom: Fix mask extraction for bootloader programmed SMRs
	arm64: kexec_file: fix memory leakage in create_dtb() when fdt_open_into() fails
	arm64: uprobe: Return EOPNOTSUPP for AARCH32 instruction probing
	arm64 module: set plt* section addresses to 0x0
	arm64: spectre: Prevent lockdep splat on v4 mitigation enable path
	riscv: Disable KSAN_SANITIZE for vDSO
	watchdog: qcom: Remove incorrect usage of QCOM_WDT_ENABLE_IRQ
	watchdog: mei_wdt: request stop on unregister
	coresight: etm4x: Handle accesses to TRCSTALLCTLR
	mtd: spi-nor: sfdp: Fix last erase region marking
	mtd: spi-nor: sfdp: Fix wrong erase type bitmask for overlaid region
	mtd: spi-nor: core: Fix erase type discovery for overlaid region
	mtd: spi-nor: core: Add erase size check for erase command initialization
	mtd: spi-nor: hisi-sfc: Put child node np on error path
	fs/affs: release old buffer head on error path
	seq_file: document how per-entry resources are managed.
	x86: fix seq_file iteration for pat/memtype.c
	mm: memcontrol: fix swap undercounting in cgroup2
	mm: memcontrol: fix get_active_memcg return value
	hugetlb: fix update_and_free_page contig page struct assumption
	hugetlb: fix copy_huge_page_from_user contig page struct assumption
	mm/vmscan: restore zone_reclaim_mode ABI
	mm, compaction: make fast_isolate_freepages() stay within zone
	KVM: nSVM: fix running nested guests when npt=0
	nvmem: qcom-spmi-sdam: Fix uninitialized pdev pointer
	module: Ignore _GLOBAL_OFFSET_TABLE_ when warning for undefined symbols
	mmc: sdhci-esdhc-imx: fix kernel panic when remove module
	mmc: sdhci-pci-o2micro: Bug fix for SDR104 HW tuning failure
	powerpc/32: Preserve cr1 in exception prolog stack check to fix build error
	powerpc/kexec_file: fix FDT size estimation for kdump kernel
	powerpc/32s: Add missing call to kuep_lock on syscall entry
	spmi: spmi-pmic-arb: Fix hw_irq overflow
	mei: fix transfer over dma with extended header
	mei: me: emmitsburg workstation DID
	mei: me: add adler lake point S DID
	mei: me: add adler lake point LP DID
	gpio: pcf857x: Fix missing first interrupt
	mfd: gateworks-gsc: Fix interrupt type
	printk: fix deadlock when kernel panic
	exfat: fix shift-out-of-bounds in exfat_fill_super()
	zonefs: Fix file size of zones in full condition
	kcmp: Support selection of SYS_kcmp without CHECKPOINT_RESTORE
	thermal: cpufreq_cooling: freq_qos_update_request() returns < 0 on error
	cpufreq: qcom-hw: drop devm_xxx() calls from init/exit hooks
	cpufreq: intel_pstate: Change intel_pstate_get_hwp_max() argument
	cpufreq: intel_pstate: Get per-CPU max freq via MSR_HWP_CAPABILITIES if available
	proc: don't allow async path resolution of /proc/thread-self components
	s390/vtime: fix inline assembly clobber list
	virtio/s390: implement virtio-ccw revision 2 correctly
	um: mm: check more comprehensively for stub changes
	um: defer killing userspace on page table update failures
	irqchip/loongson-pch-msi: Use bitmap_zalloc() to allocate bitmap
	f2fs: fix out-of-repair __setattr_copy()
	f2fs: enforce the immutable flag on open files
	f2fs: flush data when enabling checkpoint back
	sparc32: fix a user-triggerable oops in clear_user()
	spi: fsl: invert spisel_boot signal on MPC8309
	spi: spi-synquacer: fix set_cs handling
	gfs2: fix glock confusion in function signal_our_withdraw
	gfs2: Don't skip dlm unlock if glock has an lvb
	gfs2: Lock imbalance on error path in gfs2_recover_one
	gfs2: Recursive gfs2_quota_hold in gfs2_iomap_end
	dm: fix deadlock when swapping to encrypted device
	dm table: fix iterate_devices based device capability checks
	dm table: fix DAX iterate_devices based device capability checks
	dm table: fix zoned iterate_devices based device capability checks
	dm writecache: fix performance degradation in ssd mode
	dm writecache: return the exact table values that were set
	dm writecache: fix writing beyond end of underlying device when shrinking
	dm era: Recover committed writeset after crash
	dm era: Update in-core bitset after committing the metadata
	dm era: Verify the data block size hasn't changed
	dm era: Fix bitset memory leaks
	dm era: Use correct value size in equality function of writeset tree
	dm era: Reinitialize bitset cache before digesting a new writeset
	dm era: only resize metadata in preresume
	drm/i915: Reject 446-480MHz HDMI clock on GLK
	kgdb: fix to kill breakpoints on initmem after boot
	ipv6: silence compilation warning for non-IPV6 builds
	net: icmp: pass zeroed opts from icmp{,v6}_ndo_send before sending
	wireguard: selftests: test multiple parallel streams
	wireguard: queueing: get rid of per-peer ring buffers
	net: sched: fix police ext initialization
	net: qrtr: Fix memory leak in qrtr_tun_open
	net_sched: fix RTNL deadlock again caused by request_module()
	ARM: dts: aspeed: Add LCLK to lpc-snoop
	Linux 5.10.20

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I3fbcecd9413ce212dac68d5cc800c9457feba56a
2021-03-07 12:33:33 +01:00
Suzuki K Poulose
32009c5d17 arm64: Extend workaround for erratum 1024718 to all versions of Cortex-A55
commit c0b15c25d25171db4b70cc0b7dbc1130ee94017d upstream.

The erratum 1024718 affects Cortex-A55 r0p0 to r2p0. However
we apply the work around for r0p0 - r1p0. Unfortunately this
won't be fixed for the future revisions for the CPU. Thus
extend the work around for all versions of A55, to cover
for r2p0 and any future revisions.

Cc: stable@vger.kernel.org
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will@kernel.org>
Cc: James Morse <james.morse@arm.com>
Cc: Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Link: https://lore.kernel.org/r/20210203230057.3961239-1-suzuki.poulose@arm.com
[will: Update Kconfig help text]
Signed-off-by: Will Deacon <will@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-03-04 11:38:35 +01:00
Suzuki K Poulose
1b6c720a64 FROMLIST: kvm: arm64: Hide system instruction access to Trace registers
Currently we advertise the ID_AA6DFR0_EL1.TRACEVER for the guest,
when the trace register accesses are trapped (CPTR_EL2.TTA == 1).
So, the guest will get an undefined instruction, if trusts the
ID registers and access one of the trace registers.
Lets be nice to the guest and hide the feature to avoid
unexpected behavior.

Even though this can be done at KVM sysreg emulation layer,
we do this by removing the TRACEVER from the sanitised feature
register field. This is fine as long as the ETM drivers
can handle the individual trace units separately, even
when there are differences among the CPUs.

Bug: 174685394
Cc: Marc Zyngier <maz@kernel.org>
Cc: Will Deacon <will@kernel.org>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Link: https://lore.kernel.org/linux-arm-kernel/20210225193543.2920532-4-suzuki.poulose@arm.com/
Signed-off-by: Qais Yousef <qais.yousef@arm.com>
Change-Id: I0f29e6cf959d8de9249272114e7a8f952f8c686c
2021-03-01 12:52:13 -08:00
Greg Kroah-Hartman
b129c98dc6 Merge 5.10.17 into android12-5.10
Changes in 5.10.17
	objtool: Fix seg fault with Clang non-section symbols
	Revert "dts: phy: add GPIO number and active state used for phy reset"
	gpio: mxs: GPIO_MXS should not default to y unconditionally
	gpio: ep93xx: fix BUG_ON port F usage
	gpio: ep93xx: Fix single irqchip with multi gpiochips
	tracing: Do not count ftrace events in top level enable output
	tracing: Check length before giving out the filter buffer
	drm/i915: Fix overlay frontbuffer tracking
	arm/xen: Don't probe xenbus as part of an early initcall
	cgroup: fix psi monitor for root cgroup
	Revert "drm/amd/display: Update NV1x SR latency values"
	drm/i915/tgl+: Make sure TypeC FIA is powered up when initializing it
	drm/dp_mst: Don't report ports connected if nothing is attached to them
	dmaengine: move channel device_node deletion to driver
	tmpfs: disallow CONFIG_TMPFS_INODE64 on s390
	tmpfs: disallow CONFIG_TMPFS_INODE64 on alpha
	soc: ti: omap-prm: Fix boot time errors for rst_map_012 bits 0 and 1
	arm64: dts: rockchip: Fix PCIe DT properties on rk3399
	arm64: dts: qcom: sdm845: Reserve LPASS clocks in gcc
	ARM: OMAP2+: Fix suspcious RCU usage splats for omap_enter_idle_coupled
	arm64: dts: rockchip: remove interrupt-names property from rk3399 vdec node
	platform/x86: hp-wmi: Disable tablet-mode reporting by default
	arm64: dts: rockchip: Disable display for NanoPi R2S
	ovl: perform vfs_getxattr() with mounter creds
	cap: fix conversions on getxattr
	ovl: skip getxattr of security labels
	scsi: lpfc: Fix EEH encountering oops with NVMe traffic
	x86/split_lock: Enable the split lock feature on another Alder Lake CPU
	nvme-pci: ignore the subsysem NQN on Phison E16
	drm/amd/display: Fix DPCD translation for LTTPR AUX_RD_INTERVAL
	drm/amd/display: Add more Clock Sources to DCN2.1
	drm/amd/display: Release DSC before acquiring
	drm/amd/display: Fix dc_sink kref count in emulated_link_detect
	drm/amd/display: Free atomic state after drm_atomic_commit
	drm/amd/display: Decrement refcount of dc_sink before reassignment
	riscv: virt_addr_valid must check the address belongs to linear mapping
	bfq-iosched: Revert "bfq: Fix computation of shallow depth"
	ARM: dts: lpc32xx: Revert set default clock rate of HCLK PLL
	kallsyms: fix nonconverging kallsyms table with lld
	ARM: ensure the signal page contains defined contents
	ARM: kexec: fix oops after TLB are invalidated
	ubsan: implement __ubsan_handle_alignment_assumption
	Revert "lib: Restrict cpumask_local_spread to houskeeping CPUs"
	x86/efi: Remove EFI PGD build time checks
	lkdtm: don't move ctors to .rodata
	KVM: x86: cleanup CR3 reserved bits checks
	cgroup-v1: add disabled controller check in cgroup1_parse_param()
	dmaengine: idxd: fix misc interrupt completion
	ath9k: fix build error with LEDS_CLASS=m
	mt76: dma: fix a possible memory leak in mt76_add_fragment()
	drm/vc4: hvs: Fix buffer overflow with the dlist handling
	dmaengine: idxd: check device state before issue command
	bpf: Unbreak BPF_PROG_TYPE_KPROBE when kprobe is called via do_int3
	bpf: Check for integer overflow when using roundup_pow_of_two()
	netfilter: xt_recent: Fix attempt to update deleted entry
	selftests: netfilter: fix current year
	netfilter: nftables: fix possible UAF over chains from packet path in netns
	netfilter: flowtable: fix tcp and udp header checksum update
	xen/netback: avoid race in xenvif_rx_ring_slots_available()
	net: hdlc_x25: Return meaningful error code in x25_open
	net: ipa: set error code in gsi_channel_setup()
	hv_netvsc: Reset the RSC count if NVSP_STAT_FAIL in netvsc_receive()
	net: enetc: initialize the RFS and RSS memories
	selftests: txtimestamp: fix compilation issue
	net: stmmac: set TxQ mode back to DCB after disabling CBS
	ibmvnic: Clear failover_pending if unable to schedule
	netfilter: conntrack: skip identical origin tuple in same zone only
	scsi: scsi_debug: Fix a memory leak
	x86/build: Disable CET instrumentation in the kernel for 32-bit too
	net: dsa: felix: implement port flushing on .phylink_mac_link_down
	net: hns3: add a check for queue_id in hclge_reset_vf_queue()
	net: hns3: add a check for tqp_index in hclge_get_ring_chain_from_mbx()
	net: hns3: add a check for index in hclge_get_rss_key()
	firmware_loader: align .builtin_fw to 8
	drm/sun4i: tcon: set sync polarity for tcon1 channel
	drm/sun4i: dw-hdmi: always set clock rate
	drm/sun4i: Fix H6 HDMI PHY configuration
	drm/sun4i: dw-hdmi: Fix max. frequency for H6
	clk: sunxi-ng: mp: fix parent rate change flag check
	i2c: stm32f7: fix configuration of the digital filter
	h8300: fix PREEMPTION build, TI_PRE_COUNT undefined
	scripts: set proper OpenSSL include dir also for sign-file
	x86/pci: Create PCI/MSI irqdomain after x86_init.pci.arch_init()
	arm64: mte: Allow PTRACE_PEEKMTETAGS access to the zero page
	rxrpc: Fix clearance of Tx/Rx ring when releasing a call
	udp: fix skb_copy_and_csum_datagram with odd segment sizes
	net: dsa: call teardown method on probe failure
	cpufreq: ACPI: Extend frequency tables to cover boost frequencies
	cpufreq: ACPI: Update arch scale-invariance max perf ratio if CPPC is not there
	net: gro: do not keep too many GRO packets in napi->rx_list
	net: fix iteration for sctp transport seq_files
	net/vmw_vsock: fix NULL pointer dereference
	net/vmw_vsock: improve locking in vsock_connect_timeout()
	net: watchdog: hold device global xmit lock during tx disable
	bridge: mrp: Fix the usage of br_mrp_port_switchdev_set_state
	switchdev: mrp: Remove SWITCHDEV_ATTR_ID_MRP_PORT_STAT
	vsock/virtio: update credit only if socket is not closed
	vsock: fix locking in vsock_shutdown()
	net/rds: restrict iovecs length for RDS_CMSG_RDMA_ARGS
	net/qrtr: restrict user-controlled length in qrtr_tun_write_iter()
	ovl: expand warning in ovl_d_real()
	kcov, usb: only collect coverage from __usb_hcd_giveback_urb in softirq
	Linux 5.10.17

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: Id0300681f52b51d3f466f1e66ec3a6c25f65f4d3
2021-02-18 11:21:01 +01:00
Catalin Marinas
975a2396e3 arm64: mte: Allow PTRACE_PEEKMTETAGS access to the zero page
commit 68d54ceeec0e5fee4fb8048e6a04c193f32525ca upstream.

The ptrace(PTRACE_PEEKMTETAGS) implementation checks whether the user
page has valid tags (mapped with PROT_MTE) by testing the PG_mte_tagged
page flag. If this bit is cleared, ptrace(PTRACE_PEEKMTETAGS) returns
-EIO.

A newly created (PROT_MTE) mapping points to the zero page which had its
tags zeroed during cpu_enable_mte(). If there were no prior writes to
this mapping, ptrace(PTRACE_PEEKMTETAGS) fails with -EIO since the zero
page does not have the PG_mte_tagged flag set.

Set PG_mte_tagged on the zero page when its tags are cleared during
boot. In addition, to avoid ptrace(PTRACE_PEEKMTETAGS) succeeding on
!PROT_MTE mappings pointing to the zero page, change the
__access_remote_tags() check to (vm_flags & VM_MTE) instead of
PG_mte_tagged.

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Fixes: 34bfeea4a9 ("arm64: mte: Clear the tags when a page is mapped in user-space with PROT_MTE")
Cc: <stable@vger.kernel.org> # 5.10.x
Cc: Will Deacon <will@kernel.org>
Reported-by: Luis Machado <luis.machado@linaro.org>
Tested-by: Luis Machado <luis.machado@linaro.org>
Reviewed-by: Vincenzo Frascino <vincenzo.frascino@arm.com>
Link: https://lore.kernel.org/r/20210210180316.23654-1-catalin.marinas@arm.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-02-17 11:02:28 +01:00
Marc Zyngier
5ea1ff037e FROMGIT: arm64: cpufeatures: Allow disabling of Pointer Auth from the command-line
In order to be able to disable Pointer Authentication  at runtime,
whether it is for testing purposes, or to work around HW issues,
let's add support for overriding the ID_AA64ISAR1_EL1.{GPI,GPA,API,APA}
fields.

This is further mapped on the arm64.nopauth command-line alias.

Signed-off-by: Marc Zyngier <maz@kernel.org>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: David Brazdil <dbrazdil@google.com>
Tested-by: Srinivas Ramana <sramana@codeaurora.org>
Link: https://lore.kernel.org/r/20210208095732.3267263-23-maz@kernel.org
Signed-off-by: Will Deacon <will@kernel.org>
(cherry picked from commit f8da5752fd1b25f1ecf78a79013e2dfd2b860589
 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-next/cpufeature)
Signed-off-by: Will Deacon <willdeacon@google.com>
Bug: 175544340
Change-Id: I0913dff5ed1c5ee731ad6705e8b6cbde8b3e9a81
2021-02-12 15:27:48 +00:00
Marc Zyngier
f0a30f9617 FROMGIT: arm64: cpufeatures: Allow disabling of BTI from the command-line
In order to be able to disable BTI at runtime, whether it is
for testing purposes, or to work around HW issues, let's add
support for overriding the ID_AA64PFR1_EL1.BTI field.

This is further mapped on the arm64.nobti command-line alias.

Signed-off-by: Marc Zyngier <maz@kernel.org>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: David Brazdil <dbrazdil@google.com>
Tested-by: Srinivas Ramana <sramana@codeaurora.org>
Link: https://lore.kernel.org/r/20210208095732.3267263-21-maz@kernel.org
Signed-off-by: Will Deacon <will@kernel.org>
(cherry picked from commit 93ad55b7852b324a3fd7d46910b88c81deb62357
 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-next/cpufeature)
Signed-off-by: Will Deacon <willdeacon@google.com>
Bug: 175544340
Change-Id: Ib6a3e923a97120d6a438a7b46cb182a175d434bf
2021-02-12 15:27:47 +00:00
Marc Zyngier
91071a3574 FROMGIT: arm64: Allow ID_AA64MMFR1_EL1.VH to be overridden from the command line
As we want to be able to disable VHE at runtime, let's match
"id_aa64mmfr1.vh=" from the command line as an override.
This doesn't have much effect yet as our boot code doesn't look
at the cpufeature, but only at the HW registers.

Signed-off-by: Marc Zyngier <maz@kernel.org>
Acked-by: David Brazdil <dbrazdil@google.com>
Acked-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Link: https://lore.kernel.org/r/20210208095732.3267263-15-maz@kernel.org
Signed-off-by: Will Deacon <will@kernel.org>
(cherry picked from commit 361db0fca7affafa920f7d91bf93b9d9da44712f
 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-next/cpufeature)
Signed-off-by: Will Deacon <willdeacon@google.com>
Bug: 175544340
Change-Id: I997bac244601e0750a714ef37dfcafc99bf668a9
2021-02-12 15:27:46 +00:00
Marc Zyngier
a31f6cf381 FROMGIT: arm64: cpufeature: Use IDreg override in __read_sysreg_by_encoding()
__read_sysreg_by_encoding() is used by a bunch of cpufeature helpers,
which should take the feature override into account. Let's do that.

For a good measure (and because we are likely to need to further
down the line), make this helper available to the rest of the
non-modular kernel.

Code that needs to know the *real* features of a CPU can still
use read_sysreg_s(), and find the bare, ugly truth.

Signed-off-by: Marc Zyngier <maz@kernel.org>
Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Acked-by: David Brazdil <dbrazdil@google.com>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Link: https://lore.kernel.org/r/20210208095732.3267263-12-maz@kernel.org
Signed-off-by: Will Deacon <will@kernel.org>
(cherry picked from commit b3341ae0efa235726ad69e53ce83c6a3c445bda8
 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-next/cpufeature)
Signed-off-by: Will Deacon <willdeacon@google.com>
Bug: 175544340
Change-Id: Iac1fc235a5611efcd2c45dd6ec813e535e7deac9
2021-02-12 15:27:46 +00:00
Marc Zyngier
b424fe642b FROMGIT: arm64: cpufeature: Add global feature override facility
Add a facility to globally override a feature, no matter what
the HW says. Yes, this sounds dangerous, but we do respect the
"safe" value for a given feature. This doesn't mean the user
doesn't need to know what they are doing.

Nothing uses this yet, so we are pretty safe. For now.

Signed-off-by: Marc Zyngier <maz@kernel.org>
Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Acked-by: David Brazdil <dbrazdil@google.com>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Link: https://lore.kernel.org/r/20210208095732.3267263-11-maz@kernel.org
Signed-off-by: Will Deacon <will@kernel.org>
(cherry picked from commit 8f266a5d878ad38fbd43e41e22847650f51d4734
 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-next/cpufeature)
Signed-off-by: Will Deacon <willdeacon@google.com>
Bug: 175544340
Change-Id: I16342064f707c80134dcd4eadd0af757bc30c6d2
2021-02-12 15:27:46 +00:00
Will Deacon
7896d24144 FROMLIST: arm64: Hook up cmdline parameter to allow mismatched 32-bit EL0
Allow systems with mismatched 32-bit support at EL0 to run 32-bit
applications based on a new kernel parameter.

Signed-off-by: Will Deacon <will@kernel.org>
Bug: 178507149
Link: https://lore.kernel.org/linux-arch/20201208132835.6151-15-will@kernel.org/
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: I20c886efdb40c4d5abcf82c2c35a380fc10ae609
2021-02-05 09:20:54 +00:00
Will Deacon
e0c1be11f3 FROMLIST: arm64: Prevent offlining first CPU with 32-bit EL0 on mismatched system
If we want to support 32-bit applications, then when we identify a CPU
with mismatched 32-bit EL0 support we must ensure that we will always
have an active 32-bit CPU available to us from then on. This is important
for the scheduler, because is_cpu_allowed() will be constrained to 32-bit
CPUs for compat tasks and forced migration due to a hotplug event will
hang if no 32-bit CPUs are available.

On detecting a mismatch, prevent offlining of either the mismatching CPU
if it is 32-bit capable, or find the first active 32-bit capable CPU
otherwise.

Signed-off-by: Will Deacon <will@kernel.org>
Bug: 178507149
Link: https://lore.kernel.org/linux-arch/20201208132835.6151-14-will@kernel.org/
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: I330859dfd7b10082e1a3dd5341d76f2a90b1f124
2021-02-05 09:20:54 +00:00
Will Deacon
5ed7a93116 FROMLIST: arm64: Advertise CPUs capable of running 32-bit applications in sysfs
Since 32-bit applications will be killed if they are caught trying to
execute on a 64-bit-only CPU in a mismatched system, advertise the set
of 32-bit capable CPUs to userspace in sysfs.

Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Will Deacon <will@kernel.org>
Bug: 178507149
Link: https://lore.kernel.org/linux-arch/20201208132835.6151-6-will@kernel.org/
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: I32991983eab382ccf727f88dc681463950f1c9d3
2021-02-05 09:20:52 +00:00
Will Deacon
4fb1564406 BACKPORT: FROMLIST: arm64: Allow mismatched 32-bit EL0 support
When confronted with a mixture of CPUs, some of which support 32-bit
applications and others which don't, we quite sensibly treat the system
as 64-bit only for userspace and prevent execve() of 32-bit binaries.

Unfortunately, some crazy folks have decided to build systems like this
with the intention of running 32-bit applications, so relax our
sanitisation logic to continue to advertise 32-bit support to userspace
on these systems and track the real 32-bit capable cores in a cpumask
instead. For now, the default behaviour remains but will be tied to
a command-line option in a later patch.

Signed-off-by: Will Deacon <will@kernel.org>
Bug: 178507149
Link: https://lore.kernel.org/linux-arch/20201208132835.6151-3-will@kernel.org/
[will: Fix conflict in cpucaps definition, as ARM64_HARDEN_EL2_VECTORS renamed]
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: Ib8d2b8df2f4ce370a518685ee81789be9b2dd6f5
2021-02-05 09:20:52 +00:00
Will Deacon
6bce5e8bf3 FROMLIST: arm64: cpuinfo: Split AArch32 registers out into a separate struct
In preparation for late initialisation of the "sanitised" AArch32 register
state, move the AArch32 registers out of 'struct cpuinfo' and into their
own struct definition.

Signed-off-by: Will Deacon <will@kernel.org>
Bug: 178507149
Link: https://lore.kernel.org/linux-arch/20201208132835.6151-2-will@kernel.org/
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: I863cc7925af63d4984b3372c29d5051e51c1febf
2021-02-05 09:20:52 +00:00
Will Deacon
4622129e40 Revert "ANDROID: arm64: Add support for asymmetric AArch32 EL0 configurations"
This reverts commit 8a2a23717d.

Bug: 178507149
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: I281024956da915ead240be37d66268ce862d4031
2021-02-05 09:20:51 +00:00
Will Deacon
975ebc7b68 BACKPORT: arm64: cpufeatures: Add capability for LDAPR instruction
Armv8.3 introduced the LDAPR instruction, which provides weaker memory
ordering semantics than LDARi (RCpc vs RCsc). Generally, we provide an
RCsc implementation when implementing the Linux memory model, but LDAPR
can be used as a useful alternative to dependency ordering, particularly
when the compiler is capable of breaking the dependencies.

Since LDAPR is not available on all CPUs, add a cpufeature to detect it at
runtime and allow the instruction to be used with alternative code
patching.

Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Will Deacon <will@kernel.org>
(cherry picked from commit 364a5a8ae8dc2dd457e2fefb4da3f3fd2c0ba8b1)
Signed-off-by: Will Deacon <willdeacon@google.com>
[will: Fixed trivial cpucaps conflict with ARM64_KVM_PROTECTED_MODE]
Bug: 145210207
Change-Id: Ie0c9515dae382c8de49f793b8d40fef2f40dfeda
2021-01-29 08:41:03 +00:00
David Brazdil
4180fe45dd UPSTREAM: KVM: arm64: Add ARM64_KVM_PROTECTED_MODE CPU capability
Expose the boolean value whether the system is running with KVM in
protected mode (nVHE + kernel param). CPU capability was selected over
a global variable to allow use in alternatives.

Signed-off-by: David Brazdil <dbrazdil@google.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20201202184122.26046-3-dbrazdil@google.com
(cherry picked from commit 3eb681fba2bf8b67b65ce92d0ebfd7cbfc263da9)
[will: Fix conflict in cpucaps definition, as ARM64_HAS_LDAPR is not present]
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: I8bc16ffe7c024855ad1ae282749d660c7d48de90
Bug: 178098380
Test: atest VirtualizationHostTestCases on an EL2-enabled device
2021-01-28 17:57:12 +00:00
Mark Rutland
24d44b8743 UPSTREAM: arm64: add C wrappers for SET_PSTATE_*()
To make callsites easier to read, add trivial C wrappers for the
SET_PSTATE_*() helpers, and convert trivial uses over to these. The new
wrappers will be used further in subsequent patches.

There should be no functional change as a result of this patch.

Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: James Morse <james.morse@arm.com>
Cc: Will Deacon <will@kernel.org>
Link: https://lore.kernel.org/r/20201113124937.20574-3-mark.rutland@arm.com
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
(cherry picked from commit 515d5c8a1374b307225e41b3e66b0aad08585f53)
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: I0b45ca0bab8610eaf9b649d04fdb101e05ce3ada
Bug: 178098380
Test: atest VirtualizationHostTestCases on an EL2-enabled device
2021-01-28 17:57:11 +00:00
Marc Zyngier
7a42edb4fc UPSTREAM: arm64: Make the Meltdown mitigation state available
Our Meltdown mitigation state isn't exposed outside of cpufeature.c,
contrary to the rest of the Spectre mitigation state. As we are going
to use it in KVM, expose a arm64_get_meltdown_state() helper which
returns the same possible values as arm64_get_spectre_v?_state().

Signed-off-by: Marc Zyngier <maz@kernel.org>
(cherry picked from commit 7f43c2014fa03bb8718569ae628acf2089683bff)
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: If31ecb6978a131696dd1cb1aaf8dfbb4b2cf93f9
Bug: 178098380
Test: atest VirtualizationHostTestCases on an EL2-enabled device
2021-01-28 17:57:10 +00:00
Andrey Konovalov
11167161e5 UPSTREAM: kasan, arm64: implement HW_TAGS runtime
[ Upstream commit 2e903b91479782b7dedd869603423d77e079d3de ]

Provide implementation of KASAN functions required for the hardware
tag-based mode.  Those include core functions for memory and pointer
tagging (tags_hw.c) and bug reporting (report_tags_hw.c).  Also adapt
common KASAN code to support the new mode.

Link: https://lkml.kernel.org/r/cfd0fbede579a6b66755c98c88c108e54f9c56bf.1606161801.git.andreyknvl@google.com
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Signed-off-by: Vincenzo Frascino <vincenzo.frascino@arm.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Reviewed-by: Alexander Potapenko <glider@google.com>
Tested-by: Vincenzo Frascino <vincenzo.frascino@arm.com>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Branislav Rankov <Branislav.Rankov@arm.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Evgenii Stepanov <eugenis@google.com>
Cc: Kevin Brodsky <kevin.brodsky@arm.com>
Cc: Marco Elver <elver@google.com>
Cc: Vasily Gorbik <gor@linux.ibm.com>
Cc: Will Deacon <will.deacon@arm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Bug: 172318110
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Change-Id: I01f73c7dad50345aa95272fa93eb26cbb1d6bf83
2021-01-19 21:47:30 -08:00
Greg Kroah-Hartman
f11e1751ad Merge 5.10.8 into android12-5.10
Changes in 5.10.8
	powerpc/32s: Fix RTAS machine check with VMAP stack
	io_uring: synchronise IOPOLL on task_submit fail
	io_uring: limit {io|sq}poll submit locking scope
	io_uring: patch up IOPOLL overflow_flush sync
	RDMA/hns: Avoid filling sl in high 3 bits of vlan_id
	iommu/arm-smmu-qcom: Initialize SCTLR of the bypass context
	drm/panfrost: Don't corrupt the queue mutex on open/close
	io_uring: Fix return value from alloc_fixed_file_ref_node
	scsi: ufs: Fix -Wsometimes-uninitialized warning
	btrfs: skip unnecessary searches for xattrs when logging an inode
	btrfs: fix deadlock when cloning inline extent and low on free metadata space
	btrfs: shrink delalloc pages instead of full inodes
	net: cdc_ncm: correct overhead in delayed_ndp_size
	net: hns3: fix incorrect handling of sctp6 rss tuple
	net: hns3: fix the number of queues actually used by ARQ
	net: hns3: fix a phy loopback fail issue
	net: stmmac: dwmac-sun8i: Fix probe error handling
	net: stmmac: dwmac-sun8i: Balance internal PHY resource references
	net: stmmac: dwmac-sun8i: Balance internal PHY power
	net: stmmac: dwmac-sun8i: Balance syscon (de)initialization
	net: vlan: avoid leaks on register_vlan_dev() failures
	net/sonic: Fix some resource leaks in error handling paths
	net: bareudp: add missing error handling for bareudp_link_config()
	ptp: ptp_ines: prevent build when HAS_IOMEM is not set
	net: ipv6: fib: flush exceptions when purging route
	tools: selftests: add test for changing routes with PTMU exceptions
	net: fix pmtu check in nopmtudisc mode
	net: ip: always refragment ip defragmented packets
	chtls: Fix hardware tid leak
	chtls: Remove invalid set_tcb call
	chtls: Fix panic when route to peer not configured
	chtls: Avoid unnecessary freeing of oreq pointer
	chtls: Replace skb_dequeue with skb_peek
	chtls: Added a check to avoid NULL pointer dereference
	chtls: Fix chtls resources release sequence
	octeontx2-af: fix memory leak of lmac and lmac->name
	nexthop: Fix off-by-one error in error path
	nexthop: Unlink nexthop group entry in error path
	nexthop: Bounce NHA_GATEWAY in FDB nexthop groups
	s390/qeth: fix deadlock during recovery
	s390/qeth: fix locking for discipline setup / removal
	s390/qeth: fix L2 header access in qeth_l3_osa_features_check()
	net: dsa: lantiq_gswip: Exclude RMII from modes that report 1 GbE
	net/mlx5: Use port_num 1 instead of 0 when delete a RoCE address
	net/mlx5e: ethtool, Fix restriction of autoneg with 56G
	net/mlx5e: In skb build skip setting mark in switchdev mode
	net/mlx5: Check if lag is supported before creating one
	scsi: lpfc: Fix variable 'vport' set but not used in lpfc_sli4_abts_err_handler()
	ionic: start queues before announcing link up
	HID: wacom: Fix memory leakage caused by kfifo_alloc
	fanotify: Fix sys_fanotify_mark() on native x86-32
	ARM: OMAP2+: omap_device: fix idling of devices during probe
	i2c: sprd: use a specific timeout to avoid system hang up issue
	dmaengine: dw-edma: Fix use after free in dw_edma_alloc_chunk()
	selftests/bpf: Clarify build error if no vmlinux
	can: tcan4x5x: fix bittiming const, use common bittiming from m_can driver
	can: m_can: m_can_class_unregister(): remove erroneous m_can_clk_stop()
	can: kvaser_pciefd: select CONFIG_CRC32
	spi: spi-geni-qcom: Fail new xfers if xfer/cancel/abort pending
	cpufreq: powernow-k8: pass policy rather than use cpufreq_cpu_get()
	spi: spi-geni-qcom: Fix geni_spi_isr() NULL dereference in timeout case
	spi: stm32: FIFO threshold level - fix align packet size
	i2c: i801: Fix the i2c-mux gpiod_lookup_table not being properly terminated
	i2c: mediatek: Fix apdma and i2c hand-shake timeout
	bcache: set bcache device into read-only mode for BCH_FEATURE_INCOMPAT_OBSO_LARGE_BUCKET
	interconnect: imx: Add a missing of_node_put after of_device_is_available
	interconnect: qcom: fix rpmh link failures
	dmaengine: mediatek: mtk-hsdma: Fix a resource leak in the error handling path of the probe function
	dmaengine: milbeaut-xdmac: Fix a resource leak in the error handling path of the probe function
	dmaengine: xilinx_dma: check dma_async_device_register return value
	dmaengine: xilinx_dma: fix incompatible param warning in _child_probe()
	dmaengine: xilinx_dma: fix mixed_enum_type coverity warning
	arm64: mm: Fix ARCH_LOW_ADDRESS_LIMIT when !CONFIG_ZONE_DMA
	qed: select CONFIG_CRC32
	phy: dp83640: select CONFIG_CRC32
	wil6210: select CONFIG_CRC32
	block: rsxx: select CONFIG_CRC32
	lightnvm: select CONFIG_CRC32
	zonefs: select CONFIG_CRC32
	iommu/vt-d: Fix misuse of ALIGN in qi_flush_piotlb()
	iommu/intel: Fix memleak in intel_irq_remapping_alloc
	bpftool: Fix compilation failure for net.o with older glibc
	nvme-tcp: Fix possible race of io_work and direct send
	net/mlx5e: Fix memleak in mlx5e_create_l2_table_groups
	net/mlx5e: Fix two double free cases
	regmap: debugfs: Fix a memory leak when calling regmap_attach_dev
	wan: ds26522: select CONFIG_BITREVERSE
	arm64: cpufeature: remove non-exist CONFIG_KVM_ARM_HOST
	regulator: qcom-rpmh-regulator: correct hfsmps515 definition
	net: mvpp2: disable force link UP during port init procedure
	drm/i915/dp: Track pm_qos per connector
	net: mvneta: fix error message when MTU too large for XDP
	selftests: fib_nexthops: Fix wrong mausezahn invocation
	KVM: arm64: Don't access PMCR_EL0 when no PMU is available
	xsk: Fix race in SKB mode transmit with shared cq
	xsk: Rollback reservation at NETDEV_TX_BUSY
	block/rnbd-clt: avoid module unload race with close confirmation
	can: isotp: isotp_getname(): fix kernel information leak
	block: fix use-after-free in disk_part_iter_next
	net: drop bogus skb with CHECKSUM_PARTIAL and offset beyond end of trimmed packet
	regmap: debugfs: Fix a reversed if statement in regmap_debugfs_init()
	drm/panfrost: Remove unused variables in panfrost_job_close()
	tools headers UAPI: Sync linux/fscrypt.h with the kernel sources
	Linux 5.10.8

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: Ib8272ec9f47a3c3813509bcacece3b16137332e1
2021-01-19 09:33:21 +01:00
Shannon Zhao
ae4db0bc5c arm64: cpufeature: remove non-exist CONFIG_KVM_ARM_HOST
commit 45ba7b195a369f35cb39094fdb32efe5908b34ad upstream.

Commit d82755b2e7 ("KVM: arm64: Kill off CONFIG_KVM_ARM_HOST") deletes
CONFIG_KVM_ARM_HOST option, it should use CONFIG_KVM instead.

Just remove CONFIG_KVM_ARM_HOST here.

Fixes: d82755b2e7 ("KVM: arm64: Kill off CONFIG_KVM_ARM_HOST")
Signed-off-by: Shannon Zhao <shannon.zhao@linux.alibaba.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/1609760324-92271-1-git-send-email-shannon.zhao@linux.alibaba.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-01-17 14:17:04 +01:00
Sami Tolvanen
b1debb369c ANDROID: arm64: add __va_function and __pa_function
We use non-canonical CFI jump tables with CONFIG_CFI_CLANG, which
means the compiler replaces function address references with the
address of the function's CFI jump table entry. This results in
__pa_symbol(function), for example, returning the physical address
of the jump table entry, which can lead to address space confusion
since the jump table itself points to a virtual address. The same
issue happens when passing function pointers to hypervisor code
running at EL2.

This change adds __va_function and __pa_function macros, which use
inline assembly to take the actual function address instead, and
changes the relevant code to use these macros.

Bug: 145210207
Change-Id: Ie3079c10427bde705a2244cfb3cb5fb954e5e065
Signed-off-by: Sami Tolvanen <samitolvanen@google.com>
2021-01-14 16:33:37 +00:00
Sami Tolvanen
58f2ba8ac1 ANDROID: arm64: add __nocfi to functions that jump to a physical address
Disable CFI checking for functions that switch to linear mapping and
make an indirect call to a physical address, since the compiler only
understands virtual addresses.

Bug: 145210207
Change-Id: I2bd39c5891d4f2ce033e5ee515cf86d96eb0447f
Signed-off-by: Sami Tolvanen <samitolvanen@google.com>
2021-01-14 16:33:21 +00:00
Greg Kroah-Hartman
73936cf2dd Merge f01c30de86 ("Merge tag 'vfs-5.10-fixes-2' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux") into android-mainline
Steps on the way to 5.10-rc4

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: Iba36d2244c4229d44e3d391ed23dc25c6022f917
2020-11-14 10:29:08 +01:00
Konrad Dybcio
e3dd11a9f2 arm64: kpti: Add KRYO2XX gold/silver CPU cores to kpti safelist
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>
2020-11-13 09:47:08 +00:00
Catalin Marinas
8a2a23717d ANDROID: arm64: Add support for asymmetric AArch32 EL0 configurations
When the CONFIG_ASYMMETRIC_AARCH32 option is enabled (EXPERT), the type
of the ARM64_HAS_32BIT_EL0 capability becomes WEAK_LOCAL_CPU_FEATURE.
The kernel will now return true for system_supports_32bit_el0() and
checks 32-bit tasks are affined to AArch32 capable CPUs only in
do_notify_resume(). If the affinity contains a non-capable AArch32 CPU,
the tasks will get SIGKILLed. If the last CPU supporting 32-bit is
offlined, the kernel will SIGKILL any scheduled 32-bit tasks (the
alternative is to prevent offlining through a new .cpu_disable feature
entry).

In addition to the relaxation of the ARM64_HAS_32BIT_EL0 capability,
this patch factors out the 32-bit cpuinfo and features setting into
separate functions: __cpuinfo_store_cpu_32bit(),
init_cpu_32bit_features(). The cpuinfo of the booting CPU
(boot_cpu_data) is now updated on the first 32-bit capable CPU even if
it is a secondary one. The ID_AA64PFR0_EL0_64BIT_ONLY feature is relaxed
to FTR_NONSTRICT and FTR_HIGHER_SAFE when the asymmetric AArch32 support
is enabled. The compat_elf_hwcaps are only verified for the
AArch32-capable CPUs to still allow hotplugging AArch64-only CPUs.

Bug: 168847043
Reason: Needed for bringup. Revert when upstream patch is available
Nacked-for-upstream-by: Catalin Marinas <catalin.marinas@arm.com>
Cc: Suzuki K Poulose <Suzuki.Poulose@arm.com>
Cc: Morten Rasmussen <Morten.Rasmussen@arm.com>
Cc: Valentin Schneider <valentin.schneider@arm.com>
Cc: Qais Yousef <qais.yousef@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Qais Yousef <qais.yousef@arm.com>
[Qais: removed affinity handling to a separate patch and fixed up
docs/naming to match the change]
Change-Id: I1a9860a883f001ddebb4df9dee7504edf970d593
2020-10-29 20:34:07 +00:00
Will Deacon
baab853229 Merge branch 'for-next/mte' into for-next/core
Add userspace support for the Memory Tagging Extension introduced by
Armv8.5.

(Catalin Marinas and others)
* for-next/mte: (30 commits)
  arm64: mte: Fix typo in memory tagging ABI documentation
  arm64: mte: Add Memory Tagging Extension documentation
  arm64: mte: Kconfig entry
  arm64: mte: Save tags when hibernating
  arm64: mte: Enable swap of tagged pages
  mm: Add arch hooks for saving/restoring tags
  fs: Handle intra-page faults in copy_mount_options()
  arm64: mte: ptrace: Add NT_ARM_TAGGED_ADDR_CTRL regset
  arm64: mte: ptrace: Add PTRACE_{PEEK,POKE}MTETAGS support
  arm64: mte: Allow {set,get}_tagged_addr_ctrl() on non-current tasks
  arm64: mte: Restore the GCR_EL1 register after a suspend
  arm64: mte: Allow user control of the generated random tags via prctl()
  arm64: mte: Allow user control of the tag check mode via prctl()
  mm: Allow arm64 mmap(PROT_MTE) on RAM-based files
  arm64: mte: Validate the PROT_MTE request via arch_validate_flags()
  mm: Introduce arch_validate_flags()
  arm64: mte: Add PROT_MTE support to mmap() and mprotect()
  mm: Introduce arch_calc_vm_flag_bits()
  arm64: mte: Tags-aware aware memcmp_pages() implementation
  arm64: Avoid unnecessary clear_user_page() indirection
  ...
2020-10-02 12:16:11 +01:00
Will Deacon
0a21ac0d30 Merge branch 'for-next/ghostbusters' into for-next/core
Fix and subsequently rewrite Spectre mitigations, including the addition
of support for PR_SPEC_DISABLE_NOEXEC.

(Will Deacon and Marc Zyngier)
* for-next/ghostbusters: (22 commits)
  arm64: Add support for PR_SPEC_DISABLE_NOEXEC prctl() option
  arm64: Pull in task_stack_page() to Spectre-v4 mitigation code
  KVM: arm64: Allow patching EL2 vectors even with KASLR is not enabled
  arm64: Get rid of arm64_ssbd_state
  KVM: arm64: Convert ARCH_WORKAROUND_2 to arm64_get_spectre_v4_state()
  KVM: arm64: Get rid of kvm_arm_have_ssbd()
  KVM: arm64: Simplify handling of ARCH_WORKAROUND_2
  arm64: Rewrite Spectre-v4 mitigation code
  arm64: Move SSBD prctl() handler alongside other spectre mitigation code
  arm64: Rename ARM64_SSBD to ARM64_SPECTRE_V4
  arm64: Treat SSBS as a non-strict system feature
  arm64: Group start_thread() functions together
  KVM: arm64: Set CSV2 for guests on hardware unaffected by Spectre-v2
  arm64: Rewrite Spectre-v2 mitigation code
  arm64: Introduce separate file for spectre mitigations and reporting
  arm64: Rename ARM64_HARDEN_BRANCH_PREDICTOR to ARM64_SPECTRE_V2
  KVM: arm64: Simplify install_bp_hardening_cb()
  KVM: arm64: Replace CONFIG_KVM_INDIRECT_VECTORS with CONFIG_RANDOMIZE_BASE
  arm64: Remove Spectre-related CONFIG_* options
  arm64: Run ARCH_WORKAROUND_2 enabling code on all CPUs
  ...
2020-10-02 12:15:24 +01:00
Will Deacon
57b8b1b435 Merge branches 'for-next/acpi', 'for-next/boot', 'for-next/bpf', 'for-next/cpuinfo', 'for-next/fpsimd', 'for-next/misc', 'for-next/mm', 'for-next/pci', 'for-next/perf', 'for-next/ptrauth', 'for-next/sdei', 'for-next/selftests', 'for-next/stacktrace', 'for-next/svm', 'for-next/topology', 'for-next/tpyos' and 'for-next/vdso' into for-next/core
Remove unused functions and parameters from ACPI IORT code.
(Zenghui Yu via Lorenzo Pieralisi)
* for-next/acpi:
  ACPI/IORT: Remove the unused inline functions
  ACPI/IORT: Drop the unused @ops of iort_add_device_replay()

Remove redundant code and fix documentation of caching behaviour for the
HVC_SOFT_RESTART hypercall.
(Pingfan Liu)
* for-next/boot:
  Documentation/kvm/arm: improve description of HVC_SOFT_RESTART
  arm64/relocate_kernel: remove redundant code

Improve reporting of unexpected kernel traps due to BPF JIT failure.
(Will Deacon)
* for-next/bpf:
  arm64: Improve diagnostics when trapping BRK with FAULT_BRK_IMM

Improve robustness of user-visible HWCAP strings and their corresponding
numerical constants.
(Anshuman Khandual)
* for-next/cpuinfo:
  arm64/cpuinfo: Define HWCAP name arrays per their actual bit definitions

Cleanups to handling of SVE and FPSIMD register state in preparation
for potential future optimisation of handling across syscalls.
(Julien Grall)
* for-next/fpsimd:
  arm64/sve: Implement a helper to load SVE registers from FPSIMD state
  arm64/sve: Implement a helper to flush SVE registers
  arm64/fpsimdmacros: Allow the macro "for" to be used in more cases
  arm64/fpsimdmacros: Introduce a macro to update ZCR_EL1.LEN
  arm64/signal: Update the comment in preserve_sve_context
  arm64/fpsimd: Update documentation of do_sve_acc

Miscellaneous changes.
(Tian Tao and others)
* for-next/misc:
  arm64/mm: return cpu_all_mask when node is NUMA_NO_NODE
  arm64: mm: Fix missing-prototypes in pageattr.c
  arm64/fpsimd: Fix missing-prototypes in fpsimd.c
  arm64: hibernate: Remove unused including <linux/version.h>
  arm64/mm: Refactor {pgd, pud, pmd, pte}_ERROR()
  arm64: Remove the unused include statements
  arm64: get rid of TEXT_OFFSET
  arm64: traps: Add str of description to panic() in die()

Memory management updates and cleanups.
(Anshuman Khandual and others)
* for-next/mm:
  arm64: dbm: Invalidate local TLB when setting TCR_EL1.HD
  arm64: mm: Make flush_tlb_fix_spurious_fault() a no-op
  arm64/mm: Unify CONT_PMD_SHIFT
  arm64/mm: Unify CONT_PTE_SHIFT
  arm64/mm: Remove CONT_RANGE_OFFSET
  arm64/mm: Enable THP migration
  arm64/mm: Change THP helpers to comply with generic MM semantics
  arm64/mm/ptdump: Add address markers for BPF regions

Allow prefetchable PCI BARs to be exposed to userspace using normal
non-cacheable mappings.
(Clint Sbisa)
* for-next/pci:
  arm64: Enable PCI write-combine resources under sysfs

Perf/PMU driver updates.
(Julien Thierry and others)
* for-next/perf:
  perf: arm-cmn: Fix conversion specifiers for node type
  perf: arm-cmn: Fix unsigned comparison to less than zero
  arm_pmu: arm64: Use NMIs for PMU
  arm_pmu: Introduce pmu_irq_ops
  KVM: arm64: pmu: Make overflow handler NMI safe
  arm64: perf: Defer irq_work to IPI_IRQ_WORK
  arm64: perf: Remove PMU locking
  arm64: perf: Avoid PMXEV* indirection
  arm64: perf: Add missing ISB in armv8pmu_enable_counter()
  perf: Add Arm CMN-600 PMU driver
  perf: Add Arm CMN-600 DT binding
  arm64: perf: Add support caps under sysfs
  drivers/perf: thunderx2_pmu: Fix memory resource error handling
  drivers/perf: xgene_pmu: Fix uninitialized resource struct
  perf: arm_dsu: Support DSU ACPI devices
  arm64: perf: Remove unnecessary event_idx check
  drivers/perf: hisi: Add missing include of linux/module.h
  arm64: perf: Add general hardware LLC events for PMUv3

Support for the Armv8.3 Pointer Authentication enhancements.
(By Amit Daniel Kachhap)
* for-next/ptrauth:
  arm64: kprobe: clarify the comment of steppable hint instructions
  arm64: kprobe: disable probe of fault prone ptrauth instruction
  arm64: cpufeature: Modify address authentication cpufeature to exact
  arm64: ptrauth: Introduce Armv8.3 pointer authentication enhancements
  arm64: traps: Allow force_signal_inject to pass esr error code
  arm64: kprobe: add checks for ARMv8.3-PAuth combined instructions

Tonnes of cleanup to the SDEI driver.
(Gavin Shan)
* for-next/sdei:
  firmware: arm_sdei: Remove _sdei_event_unregister()
  firmware: arm_sdei: Remove _sdei_event_register()
  firmware: arm_sdei: Introduce sdei_do_local_call()
  firmware: arm_sdei: Cleanup on cross call function
  firmware: arm_sdei: Remove while loop in sdei_event_unregister()
  firmware: arm_sdei: Remove while loop in sdei_event_register()
  firmware: arm_sdei: Remove redundant error message in sdei_probe()
  firmware: arm_sdei: Remove duplicate check in sdei_get_conduit()
  firmware: arm_sdei: Unregister driver on error in sdei_init()
  firmware: arm_sdei: Avoid nested statements in sdei_init()
  firmware: arm_sdei: Retrieve event number from event instance
  firmware: arm_sdei: Common block for failing path in sdei_event_create()
  firmware: arm_sdei: Remove sdei_is_err()

Selftests for Pointer Authentication and FPSIMD/SVE context-switching.
(Mark Brown and Boyan Karatotev)
* for-next/selftests:
  selftests: arm64: Add build and documentation for FP tests
  selftests: arm64: Add wrapper scripts for stress tests
  selftests: arm64: Add utility to set SVE vector lengths
  selftests: arm64: Add stress tests for FPSMID and SVE context switching
  selftests: arm64: Add test for the SVE ptrace interface
  selftests: arm64: Test case for enumeration of SVE vector lengths
  kselftests/arm64: add PAuth tests for single threaded consistency and differently initialized keys
  kselftests/arm64: add PAuth test for whether exec() changes keys
  kselftests/arm64: add nop checks for PAuth tests
  kselftests/arm64: add a basic Pointer Authentication test

Implementation of ARCH_STACKWALK for unwinding.
(Mark Brown)
* for-next/stacktrace:
  arm64: Move console stack display code to stacktrace.c
  arm64: stacktrace: Convert to ARCH_STACKWALK
  arm64: stacktrace: Make stack walk callback consistent with generic code
  stacktrace: Remove reliable argument from arch_stack_walk() callback

Support for ASID pinning, which is required when sharing page-tables with
the SMMU.
(Jean-Philippe Brucker)
* for-next/svm:
  arm64: cpufeature: Export symbol read_sanitised_ftr_reg()
  arm64: mm: Pin down ASIDs for sharing mm with devices

Rely on firmware tables for establishing CPU topology.
(Valentin Schneider)
* for-next/topology:
  arm64: topology: Stop using MPIDR for topology information

Spelling fixes.
(Xiaoming Ni and Yanfei Xu)
* for-next/tpyos:
  arm64/numa: Fix a typo in comment of arm64_numa_init
  arm64: fix some spelling mistakes in the comments by codespell

vDSO cleanups.
(Will Deacon)
* for-next/vdso:
  arm64: vdso: Fix unusual formatting in *setup_additional_pages()
  arm64: vdso32: Remove a bunch of #ifdef CONFIG_COMPAT_VDSO guards
2020-10-02 12:01:41 +01:00
Will Deacon
80d6b46667 arm64: dbm: Invalidate local TLB when setting TCR_EL1.HD
TCR_EL1.HD is permitted to be cached in a TLB, so invalidate the local
TLB after setting the bit when detected support for the feature. Although
this isn't strictly necessary, since we can happily operate with the bit
effectively clear, the current code uses an ISB in a half-hearted attempt
to make the change effective, so let's just fix that up.

Link: https://lore.kernel.org/r/20201001110405.18617-1-will@kernel.org
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Reviewed-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Will Deacon <will@kernel.org>
2020-10-01 12:43:05 +01:00
Will Deacon
c28762070c arm64: Rewrite Spectre-v4 mitigation code
Rewrite the Spectre-v4 mitigation handling code to follow the same
approach as that taken by Spectre-v2.

For now, report to KVM that the system is vulnerable (by forcing
'ssbd_state' to ARM64_SSBD_UNKNOWN), as this will be cleared up in
subsequent steps.

Signed-off-by: Will Deacon <will@kernel.org>
2020-09-29 16:08:16 +01:00
Will Deacon
532d581583 arm64: Treat SSBS as a non-strict system feature
If all CPUs discovered during boot have SSBS, then spectre-v4 will be
considered to be "mitigated". However, we still allow late CPUs without
SSBS to be onlined, albeit with a "SANITY CHECK" warning. This is
problematic for userspace because it means that the system can quietly
transition to "Vulnerable" at runtime.

Avoid this by treating SSBS as a non-strict system feature: if all of
the CPUs discovered during boot have SSBS, then late arriving secondaries
better have it as well.

Signed-off-by: Will Deacon <will@kernel.org>
2020-09-29 16:08:16 +01:00
Will Deacon
6e5f092784 arm64: Remove Spectre-related CONFIG_* options
The spectre mitigations are too configurable for their own good, leading
to confusing logic trying to figure out when we should mitigate and when
we shouldn't. Although the plethora of command-line options need to stick
around for backwards compatibility, the default-on CONFIG options that
depend on EXPERT can be dropped, as the mitigations only do anything if
the system is vulnerable, a mitigation is available and the command-line
hasn't disabled it.

Remove CONFIG_HARDEN_BRANCH_PREDICTOR and CONFIG_ARM64_SSBD in favour of
enabling this code unconditionally.

Signed-off-by: Will Deacon <will@kernel.org>
2020-09-29 16:08:15 +01:00
Jean-Philippe Brucker
6f3c4afae9 arm64: cpufeature: Export symbol read_sanitised_ftr_reg()
The SMMUv3 driver would like to read the MMFR0 PARANGE field in order to
share CPU page tables with devices. Allow the driver to be built as
module by exporting the read_sanitized_ftr_reg() cpufeature symbol.

Signed-off-by: Jean-Philippe Brucker <jean-philippe@linaro.org>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Acked-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Link: https://lore.kernel.org/r/20200918101852.582559-7-jean-philippe@linaro.org
Signed-off-by: Will Deacon <will@kernel.org>
2020-09-28 22:22:37 +01:00
Amit Daniel Kachhap
ba9d1d3e3e arm64: cpufeature: Modify address authentication cpufeature to exact
The current address authentication cpufeature levels are set as LOWER_SAFE
which is not compatible with the different configurations added for Armv8.3
ptrauth enhancements as the different levels have different behaviour and
there is no tunable to enable the lower safe versions. This is rectified
by setting those cpufeature type as EXACT.

The current cpufeature framework also does not interfere in the booting of
non-exact secondary cpus but rather marks them as tainted. As a workaround
this is fixed by replacing the generic match handler with a new handler
specific to ptrauth.

After this change, if there is any variation in ptrauth configurations in
secondary cpus from boot cpu then those mismatched cpus are parked in an
infinite loop.

Following ptrauth crash log is observed in Arm fastmodel with simulated
mismatched cpus without this fix,

 CPU features: SANITY CHECK: Unexpected variation in SYS_ID_AA64ISAR1_EL1. Boot CPU: 0x11111110211402, CPU4: 0x11111110211102
 CPU features: Unsupported CPU feature variation detected.
 GICv3: CPU4: found redistributor 100 region 0:0x000000002f180000
 CPU4: Booted secondary processor 0x0000000100 [0x410fd0f0]
 Unable to handle kernel paging request at virtual address bfff800010dadf3c
 Mem abort info:
   ESR = 0x86000004
   EC = 0x21: IABT (current EL), IL = 32 bits
   SET = 0, FnV = 0
   EA = 0, S1PTW = 0
 [bfff800010dadf3c] address between user and kernel address ranges
 Internal error: Oops: 86000004 [#1] PREEMPT SMP
 Modules linked in:
 CPU: 4 PID: 29 Comm: migration/4 Tainted: G S                5.8.0-rc4-00005-ge658591d66d1-dirty #158
 Hardware name: Foundation-v8A (DT)
 pstate: 60000089 (nZCv daIf -PAN -UAO BTYPE=--)
 pc : 0xbfff800010dadf3c
 lr : __schedule+0x2b4/0x5a8
 sp : ffff800012043d70
 x29: ffff800012043d70 x28: 0080000000000000
 x27: ffff800011cbe000 x26: ffff00087ad37580
 x25: ffff00087ad37000 x24: ffff800010de7d50
 x23: ffff800011674018 x22: 0784800010dae2a8
 x21: ffff00087ad37000 x20: ffff00087acb8000
 x19: ffff00087f742100 x18: 0000000000000030
 x17: 0000000000000000 x16: 0000000000000000
 x15: ffff800011ac1000 x14: 00000000000001bd
 x13: 0000000000000000 x12: 0000000000000000
 x11: 0000000000000000 x10: 71519a147ddfeb82
 x9 : 825d5ec0fb246314 x8 : ffff00087ad37dd8
 x7 : 0000000000000000 x6 : 00000000fffedb0e
 x5 : 00000000ffffffff x4 : 0000000000000000
 x3 : 0000000000000028 x2 : ffff80086e11e000
 x1 : ffff00087ad37000 x0 : ffff00087acdc600
 Call trace:
  0xbfff800010dadf3c
  schedule+0x78/0x110
  schedule_preempt_disabled+0x24/0x40
  __kthread_parkme+0x68/0xd0
  kthread+0x138/0x160
  ret_from_fork+0x10/0x34
 Code: bad PC value

After this fix, the mismatched CPU4 is parked as,
 CPU features: CPU4: Detected conflict for capability 39 (Address authentication (IMP DEF algorithm)), System: 1, CPU: 0
 CPU4: will not boot
 CPU4: failed to come online
 CPU4: died during early boot

[Suzuki: Introduce new matching function for address authentication]

Suggested-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Amit Daniel Kachhap <amit.kachhap@arm.com>
Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Link: https://lore.kernel.org/r/20200914083656.21428-5-amit.kachhap@arm.com
Signed-off-by: Will Deacon <will@kernel.org>
2020-09-14 12:07:02 +01:00
Catalin Marinas
34bfeea4a9 arm64: mte: Clear the tags when a page is mapped in user-space with PROT_MTE
Pages allocated by the kernel are not guaranteed to have the tags
zeroed, especially as the kernel does not (yet) use MTE itself. To
ensure the user can still access such pages when mapped into its address
space, clear the tags via set_pte_at(). A new page flag - PG_mte_tagged
(PG_arch_2) - is used to track pages with valid allocation tags.

Since the zero page is mapped as pte_special(), it won't be covered by
the above set_pte_at() mechanism. Clear its tags during early MTE
initialisation.

Co-developed-by: Steven Price <steven.price@arm.com>
Signed-off-by: Steven Price <steven.price@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will@kernel.org>
2020-09-04 12:46:06 +01:00
Vincenzo Frascino
3b714d24ef arm64: mte: CPU feature detection and initial sysreg configuration
Add the cpufeature and hwcap entries to detect the presence of MTE. Any
secondary CPU not supporting the feature, if detected on the boot CPU,
will be parked.

Add the minimum SCTLR_EL1 and HCR_EL2 bits for enabling MTE. The Normal
Tagged memory type is configured in MAIR_EL1 before the MMU is enabled
in order to avoid disrupting other CPUs in the CnP domain.

Signed-off-by: Vincenzo Frascino <vincenzo.frascino@arm.com>
Co-developed-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will@kernel.org>
Cc: Suzuki K Poulose <Suzuki.Poulose@arm.com>
2020-09-03 17:26:32 +01:00
Gustavo A. R. Silva
df561f6688 treewide: Use fallthrough pseudo-keyword
Replace the existing /* fall through */ comments and its variants with
the new pseudo-keyword macro fallthrough[1]. Also, remove unnecessary
fall-through markings when it is the case.

[1] https://www.kernel.org/doc/html/v5.7/process/deprecated.html?highlight=fallthrough#implicit-switch-case-fall-through

Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
2020-08-23 17:36:59 -05:00
Linus Torvalds
145ff1ec09 Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 and cross-arch updates from Catalin Marinas:
 "Here's a slightly wider-spread set of updates for 5.9.

  Going outside the usual arch/arm64/ area is the removal of
  read_barrier_depends() series from Will and the MSI/IOMMU ID
  translation series from Lorenzo.

  The notable arm64 updates include ARMv8.4 TLBI range operations and
  translation level hint, time namespace support, and perf.

  Summary:

   - Removal of the tremendously unpopular read_barrier_depends()
     barrier, which is a NOP on all architectures apart from Alpha, in
     favour of allowing architectures to override READ_ONCE() and do
     whatever dance they need to do to ensure address dependencies
     provide LOAD -> LOAD/STORE ordering.

     This work also offers a potential solution if compilers are shown
     to convert LOAD -> LOAD address dependencies into control
     dependencies (e.g. under LTO), as weakly ordered architectures will
     effectively be able to upgrade READ_ONCE() to smp_load_acquire().
     The latter case is not used yet, but will be discussed further at
     LPC.

   - Make the MSI/IOMMU input/output ID translation PCI agnostic,
     augment the MSI/IOMMU ACPI/OF ID mapping APIs to accept an input ID
     bus-specific parameter and apply the resulting changes to the
     device ID space provided by the Freescale FSL bus.

   - arm64 support for TLBI range operations and translation table level
     hints (part of the ARMv8.4 architecture version).

   - Time namespace support for arm64.

   - Export the virtual and physical address sizes in vmcoreinfo for
     makedumpfile and crash utilities.

   - CPU feature handling cleanups and checks for programmer errors
     (overlapping bit-fields).

   - ACPI updates for arm64: disallow AML accesses to EFI code regions
     and kernel memory.

   - perf updates for arm64.

   - Miscellaneous fixes and cleanups, most notably PLT counting
     optimisation for module loading, recordmcount fix to ignore
     relocations other than R_AARCH64_CALL26, CMA areas reserved for
     gigantic pages on 16K and 64K configurations.

   - Trivial typos, duplicate words"

Link: http://lkml.kernel.org/r/20200710165203.31284-1-will@kernel.org
Link: http://lkml.kernel.org/r/20200619082013.13661-1-lorenzo.pieralisi@arm.com

* tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (82 commits)
  arm64: use IRQ_STACK_SIZE instead of THREAD_SIZE for irq stack
  arm64/mm: save memory access in check_and_switch_context() fast switch path
  arm64: sigcontext.h: delete duplicated word
  arm64: ptrace.h: delete duplicated word
  arm64: pgtable-hwdef.h: delete duplicated words
  bus: fsl-mc: Add ACPI support for fsl-mc
  bus/fsl-mc: Refactor the MSI domain creation in the DPRC driver
  of/irq: Make of_msi_map_rid() PCI bus agnostic
  of/irq: make of_msi_map_get_device_domain() bus agnostic
  dt-bindings: arm: fsl: Add msi-map device-tree binding for fsl-mc bus
  of/device: Add input id to of_dma_configure()
  of/iommu: Make of_map_rid() PCI agnostic
  ACPI/IORT: Add an input ID to acpi_dma_configure()
  ACPI/IORT: Remove useless PCI bus walk
  ACPI/IORT: Make iort_msi_map_rid() PCI agnostic
  ACPI/IORT: Make iort_get_device_domain IRQ domain agnostic
  ACPI/IORT: Make iort_match_node_callback walk the ACPI namespace for NC
  arm64: enable time namespace support
  arm64/vdso: Restrict splitting VVAR VMA
  arm64/vdso: Handle faults on timens page
  ...
2020-08-03 14:11:08 -07:00
Catalin Marinas
18aa3bd58b Merge branch 'for-next/tlbi' into for-next/core
* for-next/tlbi:
  : Support for TTL (translation table level) hint in the TLB operations
  arm64: tlb: Use the TLBI RANGE feature in arm64
  arm64: enable tlbi range instructions
  arm64: tlb: Detect the ARMv8.4 TLBI RANGE feature
  arm64: tlb: don't set the ttl value in flush_tlb_page_nosync
  arm64: Shift the __tlbi_level() indentation left
  arm64: tlb: Set the TTL field in flush_*_tlb_range
  arm64: tlb: Set the TTL field in flush_tlb_range
  tlb: mmu_gather: add tlb_flush_*_range APIs
  arm64: Add tlbi_user_level TLB invalidation helper
  arm64: Add level-hinted TLB invalidation helper
  arm64: Document SW reserved PTE/PMD bits in Stage-2 descriptors
  arm64: Detect the ARMv8.4 TTL feature
2020-07-31 18:09:50 +01:00