Commit Graph

1048905 Commits

Author SHA1 Message Date
David Anderson
df1cc768a5 Revert "FROMLIST: overlayfs: handle XATTR_NOSECURITY flag for ge..."
Revert submission 1881578

Reason for revert: broken build in CI
Reverted Changes:
Id2c6fa6ee:FROMLIST: Add flags option to get xattr method pai...
Ifa966dabd:FROMLIST: overlayfs: inode_owner_or_capable called...
I46e6c74ff:FROMLIST: overlayfs: override_creds=off option byp...
I0b8fe9f1f:FROMLIST: overlayfs: handle XATTR_NOSECURITY flag ...

Change-Id: Ie59bb4f7ad86f64c320a3e6f328a4e6f4fa1d204
Signed-off-by: David Anderson <dvander@google.com>
2021-11-20 03:15:14 +00:00
David Anderson
650b7fa416 Revert "FROMLIST: overlayfs: override_creds=off option bypass cr..."
Revert submission 1881578

Reason for revert: broken build in CI
Reverted Changes:
Id2c6fa6ee:FROMLIST: Add flags option to get xattr method pai...
Ifa966dabd:FROMLIST: overlayfs: inode_owner_or_capable called...
I46e6c74ff:FROMLIST: overlayfs: override_creds=off option byp...
I0b8fe9f1f:FROMLIST: overlayfs: handle XATTR_NOSECURITY flag ...

Change-Id: Ib78cfc2cfb717a0c4a1997399aaa47d38c6f366d
Signed-off-by: David Anderson <dvander@google.com>
2021-11-20 03:15:07 +00:00
David Anderson
c100cf8c92 Revert "FROMLIST: overlayfs: inode_owner_or_capable called durin..."
Revert submission 1881578

Reason for revert: broken build in CI
Reverted Changes:
Id2c6fa6ee:FROMLIST: Add flags option to get xattr method pai...
Ifa966dabd:FROMLIST: overlayfs: inode_owner_or_capable called...
I46e6c74ff:FROMLIST: overlayfs: override_creds=off option byp...
I0b8fe9f1f:FROMLIST: overlayfs: handle XATTR_NOSECURITY flag ...

Change-Id: I7650b493f3b5e796f231280fe626312418190822
Signed-off-by: David Anderson <dvander@google.com>
2021-11-20 03:14:58 +00:00
Kalesh Singh
90342f7225 UPSTREAM: tracing/histogram: Fix UAF in destroy_hist_field()
Calling destroy_hist_field() on an expression will recursively free
any operands associated with the expression. If during expression
parsing the operands of the expression are already set when an error
is encountered, there is no need to explicity free the operands. Doing
so will result in destroy_hist_field() being called twice for the
operands and lead to a use-after-free (UAF) error.

If the operands are associated with the expression, only call
destroy_hist_field() on the expression since the operands will be
recursively freed.

Link: https://lore.kernel.org/all/CAHk-=wgcrEbFgkw9720H3tW-AhHOoEKhYwZinYJw4FpzSaJ6_Q@mail.gmail.com/
Link: https://lkml.kernel.org/r/20211118011542.1420131-1-kaleshsingh@google.com

Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Kalesh Singh <kaleshsingh@google.com>
Fixes: 8b5d46fd7a ("tracing/histogram: Optimize division by constants")
Reported-by: kernel test robot <oliver.sang@intel.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
(cherry picked from commit f86b0aaad7)

Bug: 146055070
Bug: 145972256
Signed-off-by: Kalesh Singh <kaleshsingh@google.com>
Change-Id: I007b17b31e56a1571f91c97993a7fd1fe1140f43
2021-11-19 14:09:34 -08:00
Greg Kroah-Hartman
36de88a855 Merge 5.15.3 into android13-5.15
Changes in 5.15.3
	xhci: Fix USB 3.1 enumeration issues by increasing roothub power-on-good delay
	usb: xhci: Enable runtime-pm by default on AMD Yellow Carp platform
	Input: iforce - fix control-message timeout
	Input: elantench - fix misreporting trackpoint coordinates
	Input: i8042 - Add quirk for Fujitsu Lifebook T725
	libata: fix read log timeout value
	ocfs2: fix data corruption on truncate
	scsi: scsi_ioctl: Validate command size
	scsi: core: Avoid leaving shost->last_reset with stale value if EH does not run
	scsi: core: Remove command size deduction from scsi_setup_scsi_cmnd()
	scsi: lpfc: Don't release final kref on Fport node while ABTS outstanding
	scsi: lpfc: Fix FCP I/O flush functionality for TMF routines
	scsi: qla2xxx: Fix crash in NVMe abort path
	scsi: qla2xxx: Fix kernel crash when accessing port_speed sysfs file
	scsi: qla2xxx: Fix use after free in eh_abort path
	ce/gf100: fix incorrect CE0 address calculation on some GPUs
	char: xillybus: fix msg_ep UAF in xillyusb_probe()
	mmc: mtk-sd: Add wait dma stop done flow
	mmc: dw_mmc: Dont wait for DRTO on Write RSP error
	exfat: fix incorrect loading of i_blocks for large files
	io-wq: remove worker to owner tw dependency
	parisc: Fix set_fixmap() on PA1.x CPUs
	parisc: Fix ptrace check on syscall return
	tpm: Check for integer overflow in tpm2_map_response_body()
	firmware/psci: fix application of sizeof to pointer
	crypto: s5p-sss - Add error handling in s5p_aes_probe()
	media: rkvdec: Do not override sizeimage for output format
	media: ite-cir: IR receiver stop working after receive overflow
	media: rkvdec: Support dynamic resolution changes
	media: ir-kbd-i2c: improve responsiveness of hauppauge zilog receivers
	media: v4l2-ioctl: Fix check_ext_ctrls
	ALSA: hda/realtek: Fix mic mute LED for the HP Spectre x360 14
	ALSA: hda/realtek: Add a quirk for HP OMEN 15 mute LED
	ALSA: hda/realtek: Add quirk for Clevo PC70HS
	ALSA: hda/realtek: Headset fixup for Clevo NH77HJQ
	ALSA: hda/realtek: Add a quirk for Acer Spin SP513-54N
	ALSA: hda/realtek: Add quirk for ASUS UX550VE
	ALSA: hda/realtek: Add quirk for HP EliteBook 840 G7 mute LED
	ALSA: ua101: fix division by zero at probe
	ALSA: 6fire: fix control and bulk message timeouts
	ALSA: line6: fix control and interrupt message timeouts
	ALSA: mixer: oss: Fix racy access to slots
	ALSA: mixer: fix deadlock in snd_mixer_oss_set_volume
	ALSA: usb-audio: Line6 HX-Stomp XL USB_ID for 48k-fixed quirk
	ALSA: usb-audio: Add registration quirk for JBL Quantum 400
	ALSA: hda: Free card instance properly at probe errors
	ALSA: synth: missing check for possible NULL after the call to kstrdup
	ALSA: pci: rme: Fix unaligned buffer addresses
	ALSA: PCM: Fix NULL dereference at mmap checks
	ALSA: timer: Fix use-after-free problem
	ALSA: timer: Unconditionally unlink slave instances, too
	Revert "ext4: enforce buffer head state assertion in ext4_da_map_blocks"
	ext4: fix lazy initialization next schedule time computation in more granular unit
	ext4: ensure enough credits in ext4_ext_shift_path_extents
	ext4: refresh the ext4_ext_path struct after dropping i_data_sem.
	fuse: fix page stealing
	x86/sme: Use #define USE_EARLY_PGTABLE_L5 in mem_encrypt_identity.c
	x86/cpu: Fix migration safety with X86_BUG_NULL_SEL
	x86/irq: Ensure PI wakeup handler is unregistered before module unload
	x86/iopl: Fake iopl(3) CLI/STI usage
	btrfs: clear MISSING device status bit in btrfs_close_one_device
	btrfs: fix lost error handling when replaying directory deletes
	btrfs: call btrfs_check_rw_degradable only if there is a missing device
	KVM: x86/mmu: Drop a redundant, broken remote TLB flush
	KVM: VMX: Unregister posted interrupt wakeup handler on hardware unsetup
	KVM: PPC: Tick accounting should defer vtime accounting 'til after IRQ handling
	ia64: kprobes: Fix to pass correct trampoline address to the handler
	selinux: fix race condition when computing ocontext SIDs
	ipmi:watchdog: Set panic count to proper value on a panic
	md/raid1: only allocate write behind bio for WriteMostly device
	hwmon: (pmbus/lm25066) Add offset coefficients
	regulator: s5m8767: do not use reset value as DVS voltage if GPIO DVS is disabled
	regulator: dt-bindings: samsung,s5m8767: correct s5m8767,pmic-buck-default-dvs-idx property
	EDAC/sb_edac: Fix top-of-high-memory value for Broadwell/Haswell
	mwifiex: fix division by zero in fw download path
	ath6kl: fix division by zero in send path
	ath6kl: fix control-message timeout
	ath10k: fix control-message timeout
	ath10k: fix division by zero in send path
	PCI: Mark Atheros QCA6174 to avoid bus reset
	rtl8187: fix control-message timeouts
	evm: mark evm_fixmode as __ro_after_init
	ifb: Depend on netfilter alternatively to tc
	platform/surface: aggregator_registry: Add support for Surface Laptop Studio
	mt76: mt7615: fix skb use-after-free on mac reset
	HID: surface-hid: Use correct event registry for managing HID events
	HID: surface-hid: Allow driver matching for target ID 1 devices
	wcn36xx: Fix HT40 capability for 2Ghz band
	wcn36xx: Fix tx_status mechanism
	wcn36xx: Fix (QoS) null data frame bitrate/modulation
	PM: sleep: Do not let "syscore" devices runtime-suspend during system transitions
	mwifiex: Read a PCI register after writing the TX ring write pointer
	mwifiex: Try waking the firmware until we get an interrupt
	libata: fix checking of DMA state
	dma-buf: fix and rework dma_buf_poll v7
	wcn36xx: handle connection loss indication
	rsi: fix occasional initialisation failure with BT coex
	rsi: fix key enabled check causing unwanted encryption for vap_id > 0
	rsi: fix rate mask set leading to P2P failure
	rsi: Fix module dev_oper_mode parameter description
	perf/x86/intel/uncore: Support extra IMC channel on Ice Lake server
	perf/x86/intel/uncore: Fix invalid unit check
	perf/x86/intel/uncore: Fix Intel ICX IIO event constraints
	RDMA/qedr: Fix NULL deref for query_qp on the GSI QP
	ASoC: tegra: Set default card name for Trimslice
	ASoC: tegra: Restore AC97 support
	signal: Remove the bogus sigkill_pending in ptrace_stop
	memory: renesas-rpc-if: Correct QSPI data transfer in Manual mode
	signal/mips: Update (_save|_restore)_fp_context to fail with -EFAULT
	signal: Add SA_IMMUTABLE to ensure forced siganls do not get changed
	soc: samsung: exynos-pmu: Fix compilation when nothing selects CONFIG_MFD_CORE
	soc: fsl: dpio: replace smp_processor_id with raw_smp_processor_id
	soc: fsl: dpio: use the combined functions to protect critical zone
	mtd: rawnand: socrates: Keep the driver compatible with on-die ECC engines
	mctp: handle the struct sockaddr_mctp padding fields
	power: supply: max17042_battery: Prevent int underflow in set_soc_threshold
	power: supply: max17042_battery: use VFSOC for capacity when no rsns
	iio: core: fix double free in iio_device_unregister_sysfs()
	iio: core: check return value when calling dev_set_name()
	KVM: arm64: Extract ESR_ELx.EC only
	KVM: x86: Fix recording of guest steal time / preempted status
	KVM: x86: Add helper to consolidate core logic of SET_CPUID{2} flows
	KVM: nVMX: Query current VMCS when determining if MSR bitmaps are in use
	KVM: nVMX: Handle dynamic MSR intercept toggling
	can: peak_usb: always ask for BERR reporting for PCAN-USB devices
	can: mcp251xfd: mcp251xfd_irq(): add missing can_rx_offload_threaded_irq_finish() in case of bus off
	can: j1939: j1939_tp_cmd_recv(): ignore abort message in the BAM transport
	can: j1939: j1939_can_recv(): ignore messages with invalid source address
	can: j1939: j1939_tp_cmd_recv(): check the dst address of TP.CM_BAM
	iio: adc: tsc2046: fix scan interval warning
	powerpc/85xx: Fix oops when mpc85xx_smp_guts_ids node cannot be found
	io_uring: honour zeroes as io-wq worker limits
	ring-buffer: Protect ring_buffer_reset() from reentrancy
	serial: core: Fix initializing and restoring termios speed
	ifb: fix building without CONFIG_NET_CLS_ACT
	xen/balloon: add late_initcall_sync() for initial ballooning done
	ovl: fix use after free in struct ovl_aio_req
	ovl: fix filattr copy-up failure
	PCI: pci-bridge-emul: Fix emulation of W1C bits
	PCI: cadence: Add cdns_plat_pcie_probe() missing return
	cxl/pci: Fix NULL vs ERR_PTR confusion
	PCI: aardvark: Do not clear status bits of masked interrupts
	PCI: aardvark: Fix checking for link up via LTSSM state
	PCI: aardvark: Do not unmask unused interrupts
	PCI: aardvark: Fix reporting Data Link Layer Link Active
	PCI: aardvark: Fix configuring Reference clock
	PCI: aardvark: Fix return value of MSI domain .alloc() method
	PCI: aardvark: Read all 16-bits from PCIE_MSI_PAYLOAD_REG
	PCI: aardvark: Fix support for bus mastering and PCI_COMMAND on emulated bridge
	PCI: aardvark: Fix support for PCI_BRIDGE_CTL_BUS_RESET on emulated bridge
	PCI: aardvark: Set PCI Bridge Class Code to PCI Bridge
	PCI: aardvark: Fix support for PCI_ROM_ADDRESS1 on emulated bridge
	quota: check block number when reading the block in quota file
	quota: correct error number in free_dqentry()
	cifs: To match file servers, make sure the server hostname matches
	cifs: set a minimum of 120s for next dns resolution
	mfd: simple-mfd-i2c: Select MFD_CORE to fix build error
	pinctrl: core: fix possible memory leak in pinctrl_enable()
	coresight: cti: Correct the parameter for pm_runtime_put
	coresight: trbe: Fix incorrect access of the sink specific data
	coresight: trbe: Defer the probe on offline CPUs
	iio: buffer: check return value of kstrdup_const()
	iio: buffer: Fix memory leak in iio_buffers_alloc_sysfs_and_mask()
	iio: buffer: Fix memory leak in __iio_buffer_alloc_sysfs_and_mask()
	iio: buffer: Fix memory leak in iio_buffer_register_legacy_sysfs_groups()
	drivers: iio: dac: ad5766: Fix dt property name
	iio: dac: ad5446: Fix ad5622_write() return value
	iio: ad5770r: make devicetree property reading consistent
	Documentation:devicetree:bindings:iio:dac: Fix val
	USB: serial: keyspan: fix memleak on probe errors
	serial: 8250: fix racy uartclk update
	ksmbd: set unique value to volume serial field in FS_VOLUME_INFORMATION
	io-wq: serialize hash clear with wakeup
	serial: 8250: Fix reporting real baudrate value in c_ospeed field
	Revert "serial: 8250: Fix reporting real baudrate value in c_ospeed field"
	most: fix control-message timeouts
	USB: iowarrior: fix control-message timeouts
	USB: chipidea: fix interrupt deadlock
	power: supply: max17042_battery: Clear status bits in interrupt handler
	component: do not leave master devres group open after bind
	dma-buf: WARN on dmabuf release with pending attachments
	drm: panel-orientation-quirks: Update the Lenovo Ideapad D330 quirk (v2)
	drm: panel-orientation-quirks: Add quirk for KD Kurio Smart C15200 2-in-1
	drm: panel-orientation-quirks: Add quirk for the Samsung Galaxy Book 10.6
	Bluetooth: sco: Fix lock_sock() blockage by memcpy_from_msg()
	Bluetooth: fix use-after-free error in lock_sock_nested()
	Bluetooth: call sock_hold earlier in sco_conn_del
	drm/panel-orientation-quirks: add Valve Steam Deck
	rcutorture: Avoid problematic critical section nesting on PREEMPT_RT
	platform/x86: wmi: do not fail if disabling fails
	drm/amdgpu: move iommu_resume before ip init/resume
	MIPS: lantiq: dma: add small delay after reset
	MIPS: lantiq: dma: reset correct number of channel
	locking/lockdep: Avoid RCU-induced noinstr fail
	net: sched: update default qdisc visibility after Tx queue cnt changes
	ACPI: resources: Add DMI-based legacy IRQ override quirk
	rcu-tasks: Move RTGS_WAIT_CBS to beginning of rcu_tasks_kthread() loop
	smackfs: Fix use-after-free in netlbl_catmap_walk()
	ath11k: Align bss_chan_info structure with firmware
	crypto: aesni - check walk.nbytes instead of err
	x86/mm/64: Improve stack overflow warnings
	x86: Increase exception stack sizes
	mwifiex: Run SET_BSS_MODE when changing from P2P to STATION vif-type
	mwifiex: Properly initialize private structure on interface type changes
	spi: Check we have a spi_device_id for each DT compatible
	fscrypt: allow 256-bit master keys with AES-256-XTS
	drm/amdgpu: Fix MMIO access page fault
	drm/amd/display: Fix null pointer dereference for encoders
	selftests: net: fib_nexthops: Wait before checking reported idle time
	ath11k: Avoid reg rules update during firmware recovery
	ath11k: add handler for scan event WMI_SCAN_EVENT_DEQUEUED
	ath11k: Change DMA_FROM_DEVICE to DMA_TO_DEVICE when map reinjected packets
	ath10k: high latency fixes for beacon buffer
	octeontx2-pf: Enable promisc/allmulti match MCAM entries.
	media: mt9p031: Fix corrupted frame after restarting stream
	media: netup_unidvb: handle interrupt properly according to the firmware
	media: atomisp: Fix error handling in probe
	media: stm32: Potential NULL pointer dereference in dcmi_irq_thread()
	media: uvcvideo: Set capability in s_param
	media: uvcvideo: Return -EIO for control errors
	media: uvcvideo: Set unique vdev name based in type
	media: vidtv: Fix memory leak in remove
	media: s5p-mfc: fix possible null-pointer dereference in s5p_mfc_probe()
	media: s5p-mfc: Add checking to s5p_mfc_probe().
	media: videobuf2: rework vb2_mem_ops API
	media: imx: set a media_device bus_info string
	media: rcar-vin: Use user provided buffers when starting
	media: mceusb: return without resubmitting URB in case of -EPROTO error.
	ia64: don't do IA64_CMPXCHG_DEBUG without CONFIG_PRINTK
	rtw88: fix RX clock gate setting while fifo dump
	brcmfmac: Add DMI nvram filename quirk for Cyberbook T116 tablet
	media: rcar-csi2: Add checking to rcsi2_start_receiver()
	ipmi: Disable some operations during a panic
	fs/proc/uptime.c: Fix idle time reporting in /proc/uptime
	kselftests/sched: cleanup the child processes
	ACPICA: Avoid evaluating methods too early during system resume
	cpufreq: Make policy min/max hard requirements
	ice: Move devlink port to PF/VF struct
	media: imx-jpeg: Fix possible null pointer dereference
	media: ipu3-imgu: imgu_fmt: Handle properly try
	media: ipu3-imgu: VIDIOC_QUERYCAP: Fix bus_info
	media: usb: dvd-usb: fix uninit-value bug in dibusb_read_eeprom_byte()
	net-sysfs: try not to restart the syscall if it will fail eventually
	drm/amdkfd: rm BO resv on validation to avoid deadlock
	tracefs: Have tracefs directories not set OTH permission bits by default
	tracing: Disable "other" permission bits in the tracefs files
	ath: dfs_pattern_detector: Fix possible null-pointer dereference in channel_detector_create()
	KVM: arm64: Propagate errors from __pkvm_prot_finalize hypercall
	mmc: moxart: Fix reference count leaks in moxart_probe
	iov_iter: Fix iov_iter_get_pages{,_alloc} page fault return value
	ACPI: battery: Accept charges over the design capacity as full
	ACPI: scan: Release PM resources blocked by unused objects
	drm/amd/display: fix null pointer deref when plugging in display
	drm/amdkfd: fix resume error when iommu disabled in Picasso
	net: phy: micrel: make *-skew-ps check more lenient
	leaking_addresses: Always print a trailing newline
	thermal/core: Fix null pointer dereference in thermal_release()
	drm/msm: prevent NULL dereference in msm_gpu_crashstate_capture()
	thermal/drivers/tsens: Add timeout to get_temp_tsens_valid
	block: bump max plugged deferred size from 16 to 32
	floppy: fix calling platform_device_unregister() on invalid drives
	md: update superblock after changing rdev flags in state_store
	memstick: r592: Fix a UAF bug when removing the driver
	locking/rwsem: Disable preemption for spinning region
	lib/xz: Avoid overlapping memcpy() with invalid input with in-place decompression
	lib/xz: Validate the value before assigning it to an enum variable
	workqueue: make sysfs of unbound kworker cpumask more clever
	tracing/cfi: Fix cmp_entries_* functions signature mismatch
	mt76: mt7915: fix an off-by-one bound check
	mwl8k: Fix use-after-free in mwl8k_fw_state_machine()
	iwlwifi: change all JnP to NO-160 configuration
	block: remove inaccurate requeue check
	media: allegro: ignore interrupt if mailbox is not initialized
	drm/amdgpu/pm: properly handle sclk for profiling modes on vangogh
	nvmet: fix use-after-free when a port is removed
	nvmet-rdma: fix use-after-free when a port is removed
	nvmet-tcp: fix use-after-free when a port is removed
	nvme: drop scan_lock and always kick requeue list when removing namespaces
	samples/bpf: Fix application of sizeof to pointer
	arm64: vdso32: suppress error message for 'make mrproper'
	PM: hibernate: Get block device exclusively in swsusp_check()
	selftests: kvm: fix mismatched fclose() after popen()
	selftests/bpf: Fix perf_buffer test on system with offline cpus
	iwlwifi: mvm: disable RX-diversity in powersave
	smackfs: use __GFP_NOFAIL for smk_cipso_doi()
	ARM: clang: Do not rely on lr register for stacktrace
	gre/sit: Don't generate link-local addr if addr_gen_mode is IN6_ADDR_GEN_MODE_NONE
	can: bittiming: can_fixup_bittiming(): change type of tseg1 and alltseg to unsigned int
	gfs2: Cancel remote delete work asynchronously
	gfs2: Fix glock_hash_walk bugs
	ARM: 9136/1: ARMv7-M uses BE-8, not BE-32
	tools/latency-collector: Use correct size when writing queue_full_warning
	vrf: run conntrack only in context of lower/physdev for locally generated packets
	net: annotate data-race in neigh_output()
	ACPI: AC: Quirk GK45 to skip reading _PSR
	ACPI: resources: Add one more Medion model in IRQ override quirk
	btrfs: reflink: initialize return value to 0 in btrfs_extent_same()
	btrfs: do not take the uuid_mutex in btrfs_rm_device
	spi: bcm-qspi: Fix missing clk_disable_unprepare() on error in bcm_qspi_probe()
	wcn36xx: Correct band/freq reporting on RX
	wcn36xx: Fix packet drop on resume
	Revert "wcn36xx: Enable firmware link monitoring"
	ftrace: do CPU checking after preemption disabled
	inet: remove races in inet{6}_getname()
	x86/hyperv: Protect set_hv_tscchange_cb() against getting preempted
	drm/amd/display: dcn20_resource_construct reduce scope of FPU enabled
	selftests/core: fix conflicting types compile error for close_range()
	perf/x86/intel: Fix ICL/SPR INST_RETIRED.PREC_DIST encodings
	parisc: fix warning in flush_tlb_all
	task_stack: Fix end_of_stack() for architectures with upwards-growing stack
	erofs: don't trigger WARN() when decompression fails
	parisc/unwind: fix unwinder when CONFIG_64BIT is enabled
	parisc/kgdb: add kgdb_roundup() to make kgdb work with idle polling
	netfilter: conntrack: set on IPS_ASSURED if flows enters internal stream state
	selftests/bpf: Fix strobemeta selftest regression
	fbdev/efifb: Release PCI device's runtime PM ref during FB destroy
	drm/bridge: anx7625: Propagate errors from sp_tx_rst_aux()
	perf/x86/intel/uncore: Fix Intel SPR CHA event constraints
	perf/x86/intel/uncore: Fix Intel SPR IIO event constraints
	perf/x86/intel/uncore: Fix Intel SPR M2PCIE event constraints
	perf/x86/intel/uncore: Fix Intel SPR M3UPI event constraints
	drm/bridge: it66121: Initialize {device,vendor}_ids
	drm/bridge: it66121: Wait for next bridge to be probed
	Bluetooth: fix init and cleanup of sco_conn.timeout_work
	libbpf: Don't crash on object files with no symbol tables
	Bluetooth: hci_uart: fix GPF in h5_recv
	rcu: Fix existing exp request check in sync_sched_exp_online_cleanup()
	MIPS: lantiq: dma: fix burst length for DEU
	x86/xen: Mark cpu_bringup_and_idle() as dead_end_function
	objtool: Handle __sanitize_cov*() tail calls
	net/mlx5: Publish and unpublish all devlink parameters at once
	drm/v3d: fix wait for TMU write combiner flush
	crypto: sm4 - Do not change section of ck and sbox
	virtio-gpu: fix possible memory allocation failure
	lockdep: Let lock_is_held_type() detect recursive read as read
	net: net_namespace: Fix undefined member in key_remove_domain()
	net: phylink: don't call netif_carrier_off() with NULL netdev
	drm: bridge: it66121: Fix return value it66121_probe
	spi: Fixed division by zero warning
	cgroup: Make rebind_subsystems() disable v2 controllers all at once
	wcn36xx: Fix Antenna Diversity Switching
	wilc1000: fix possible memory leak in cfg_scan_result()
	Bluetooth: btmtkuart: fix a memleak in mtk_hci_wmt_sync
	drm/amdgpu: Fix crash on device remove/driver unload
	drm/amd/display: Pass display_pipe_params_st as const in DML
	drm/amdgpu: move amdgpu_virt_release_full_gpu to fini_early stage
	crypto: caam - disable pkc for non-E SoCs
	crypto: qat - power up 4xxx device
	Bluetooth: hci_h5: Fix (runtime)suspend issues on RTL8723BS HCIs
	bnxt_en: Check devlink allocation and registration status
	qed: Don't ignore devlink allocation failures
	rxrpc: Fix _usecs_to_jiffies() by using usecs_to_jiffies()
	mptcp: do not shrink snd_nxt when recovering
	fortify: Fix dropped strcpy() compile-time write overflow check
	mac80211: twt: don't use potentially unaligned pointer
	cfg80211: always free wiphy specific regdomain
	net/mlx5: Accept devlink user input after driver initialization complete
	net: dsa: rtl8366rb: Fix off-by-one bug
	net: dsa: rtl8366: Fix a bug in deleting VLANs
	bpf/tests: Fix error in tail call limit tests
	ath11k: fix some sleeping in atomic bugs
	ath11k: Avoid race during regd updates
	ath11k: fix packet drops due to incorrect 6 GHz freq value in rx status
	ath11k: Fix memory leak in ath11k_qmi_driver_event_work
	gve: DQO: avoid unused variable warnings
	ath10k: Fix missing frame timestamp for beacon/probe-resp
	ath10k: sdio: Add missing BH locking around napi_schdule()
	drm/ttm: stop calling tt_swapin in vm_access
	arm64: mm: update max_pfn after memory hotplug
	drm/amdgpu: fix warning for overflow check
	libbpf: Fix skel_internal.h to set errno on loader retval < 0
	media: em28xx: add missing em28xx_close_extension
	media: meson-ge2d: Fix rotation parameter changes detection in 'ge2d_s_ctrl()'
	media: cxd2880-spi: Fix a null pointer dereference on error handling path
	media: ttusb-dec: avoid release of non-acquired mutex
	media: dvb-usb: fix ununit-value in az6027_rc_query
	media: imx258: Fix getting clock frequency
	media: v4l2-ioctl: S_CTRL output the right value
	media: mtk-vcodec: venc: fix return value when start_streaming fails
	media: TDA1997x: handle short reads of hdmi info frame.
	media: mtk-vpu: Fix a resource leak in the error handling path of 'mtk_vpu_probe()'
	media: imx-jpeg: Fix the error handling path of 'mxc_jpeg_probe()'
	media: i2c: ths8200 needs V4L2_ASYNC
	media: sun6i-csi: Allow the video device to be open multiple times
	media: radio-wl1273: Avoid card name truncation
	media: si470x: Avoid card name truncation
	media: tm6000: Avoid card name truncation
	media: cx23885: Fix snd_card_free call on null card pointer
	media: atmel: fix the ispck initialization
	scs: Release kasan vmalloc poison in scs_free process
	kprobes: Do not use local variable when creating debugfs file
	crypto: ecc - fix CRYPTO_DEFAULT_RNG dependency
	drm: fb_helper: fix CONFIG_FB dependency
	cpuidle: Fix kobject memory leaks in error paths
	media: em28xx: Don't use ops->suspend if it is NULL
	ath10k: Don't always treat modem stop events as crashes
	ath9k: Fix potential interrupt storm on queue reset
	PM: EM: Fix inefficient states detection
	x86/insn: Use get_unaligned() instead of memcpy()
	EDAC/amd64: Handle three rank interleaving mode
	rcu: Always inline rcu_dynticks_task*_{enter,exit}()
	rcu: Fix rcu_dynticks_curr_cpu_in_eqs() vs noinstr
	netfilter: nft_dynset: relax superfluous check on set updates
	media: venus: fix vpp frequency calculation for decoder
	media: dvb-frontends: mn88443x: Handle errors of clk_prepare_enable()
	crypto: ccree - avoid out-of-range warnings from clang
	crypto: qat - detect PFVF collision after ACK
	crypto: qat - disregard spurious PFVF interrupts
	hwrng: mtk - Force runtime pm ops for sleep ops
	ima: fix deadlock when traversing "ima_default_rules".
	b43legacy: fix a lower bounds test
	b43: fix a lower bounds test
	gve: Recover from queue stall due to missed IRQ
	gve: Track RX buffer allocation failures
	mmc: sdhci-omap: Fix NULL pointer exception if regulator is not configured
	mmc: sdhci-omap: Fix context restore
	memstick: avoid out-of-range warning
	memstick: jmb38x_ms: use appropriate free function in jmb38x_ms_alloc_host()
	net, neigh: Fix NTF_EXT_LEARNED in combination with NTF_USE
	hwmon: Fix possible memleak in __hwmon_device_register()
	hwmon: (pmbus/lm25066) Let compiler determine outer dimension of lm25066_coeff
	ath10k: fix max antenna gain unit
	kernel/sched: Fix sched_fork() access an invalid sched_task_group
	net: fealnx: fix build for UML
	net: intel: igc_ptp: fix build for UML
	net: tulip: winbond-840: fix build for UML
	tcp: switch orphan_count to bare per-cpu counters
	crypto: octeontx2 - set assoclen in aead_do_fallback()
	thermal/core: fix a UAF bug in __thermal_cooling_device_register()
	drm/msm/dsi: do not enable irq handler before powering up the host
	drm/msm: Fix potential Oops in a6xx_gmu_rpmh_init()
	drm/msm: potential error pointer dereference in init()
	drm/msm: unlock on error in get_sched_entity()
	drm/msm: fix potential NULL dereference in cleanup
	drm/msm: uninitialized variable in msm_gem_import()
	net: stream: don't purge sk_error_queue in sk_stream_kill_queues()
	thermal/drivers/qcom/lmh: make QCOM_LMH depends on QCOM_SCM
	mailbox: Remove WARN_ON for async_cb.cb in cmdq_exec_done
	media: ivtv: fix build for UML
	media: ir_toy: assignment to be16 should be of correct type
	mmc: mxs-mmc: disable regulator on error and in the remove function
	io-wq: Remove duplicate code in io_workqueue_create()
	block: ataflop: fix breakage introduced at blk-mq refactoring
	blk-wbt: prevent NULL pointer dereference in wb_timer_fn
	platform/x86: thinkpad_acpi: Fix bitwise vs. logical warning
	mailbox: mtk-cmdq: Validate alias_id on probe
	mailbox: mtk-cmdq: Fix local clock ID usage
	ACPI: PM: Turn off unused wakeup power resources
	ACPI: PM: Fix sharing of wakeup power resources
	drm/amdkfd: Fix an inappropriate error handling in allloc memory of gpu
	mt76: mt7921: fix endianness in mt7921_mcu_tx_done_event
	mt76: mt7915: fix endianness warning in mt7915_mac_add_txs_skb
	mt76: mt7921: fix endianness warning in mt7921_update_txs
	mt76: mt7615: fix endianness warning in mt7615_mac_write_txwi
	mt76: mt7915: fix info leak in mt7915_mcu_set_pre_cal()
	mt76: connac: fix mt76_connac_gtk_rekey_tlv usage
	mt76: fix build error implicit enumeration conversion
	mt76: mt7921: fix survey-dump reporting
	mt76: mt76x02: fix endianness warnings in mt76x02_mac.c
	mt76: mt7921: Fix out of order process by invalid event pkt
	mt76: mt7915: fix potential overflow of eeprom page index
	mt76: mt7915: fix bit fields for HT rate idx
	mt76: mt7921: fix dma hang in rmmod
	mt76: connac: fix GTK rekey offload failure on WPA mixed mode
	mt76: overwrite default reg_ops if necessary
	mt76: mt7921: report HE MU radiotap
	mt76: mt7921: fix firmware usage of RA info using legacy rates
	mt76: mt7921: fix kernel warning from cfg80211_calculate_bitrate
	mt76: mt7921: always wake device if necessary in debugfs
	mt76: mt7915: fix hwmon temp sensor mem use-after-free
	mt76: mt7615: fix hwmon temp sensor mem use-after-free
	mt76: mt7915: fix possible infinite loop release semaphore
	mt76: mt7921: fix retrying release semaphore without end
	mt76: mt7615: fix monitor mode tear down crash
	mt76: connac: fix possible NULL pointer dereference in mt76_connac_get_phy_mode_v2
	mt76: mt7915: fix sta_rec_wtbl tag len
	mt76: mt7915: fix muar_idx in mt7915_mcu_alloc_sta_req()
	rsi: stop thread firstly in rsi_91x_init() error handling
	mwifiex: Send DELBA requests according to spec
	iwlwifi: mvm: reset PM state on unsuccessful resume
	iwlwifi: pnvm: don't kmemdup() more than we have
	iwlwifi: pnvm: read EFI data only if long enough
	net: enetc: unmap DMA in enetc_send_cmd()
	phy: micrel: ksz8041nl: do not use power down mode
	nbd: Fix use-after-free in pid_show
	nvme-rdma: fix error code in nvme_rdma_setup_ctrl
	PM: hibernate: fix sparse warnings
	clocksource/drivers/timer-ti-dm: Select TIMER_OF
	x86/sev: Fix stack type check in vc_switch_off_ist()
	drm/msm: Fix potential NULL dereference in DPU SSPP
	drm/msm/dsi: fix wrong type in msm_dsi_host
	crypto: tcrypt - fix skcipher multi-buffer tests for 1420B blocks
	smackfs: use netlbl_cfg_cipsov4_del() for deleting cipso_v4_doi
	KVM: selftests: Fix nested SVM tests when built with clang
	libbpf: Fix memory leak in btf__dedup()
	bpftool: Avoid leaking the JSON writer prepared for program metadata
	libbpf: Fix overflow in BTF sanity checks
	libbpf: Fix BTF header parsing checks
	mt76: mt7615: mt7622: fix ibss and meshpoint
	s390/gmap: validate VMA in __gmap_zap()
	s390/gmap: don't unconditionally call pte_unmap_unlock() in __gmap_zap()
	s390/mm: validate VMA in PGSTE manipulation functions
	s390/mm: fix VMA and page table handling code in storage key handling functions
	s390/uv: fully validate the VMA before calling follow_page()
	KVM: s390: pv: avoid double free of sida page
	KVM: s390: pv: avoid stalls for kvm_s390_pv_init_vm
	irq: mips: avoid nested irq_enter()
	net: dsa: avoid refcount warnings when ->port_{fdb,mdb}_del returns error
	ARM: 9142/1: kasan: work around LPAE build warning
	ath10k: fix module load regression with iram-recovery feature
	block: ataflop: more blk-mq refactoring fixes
	blk-cgroup: synchronize blkg creation against policy deactivation
	libbpf: Fix off-by-one bug in bpf_core_apply_relo()
	tpm: fix Atmel TPM crash caused by too frequent queries
	tpm_tis_spi: Add missing SPI ID
	libbpf: Fix endianness detection in BPF_CORE_READ_BITFIELD_PROBED()
	tcp: don't free a FIN sk_buff in tcp_remove_empty_skb()
	tracing: Fix missing trace_boot_init_histograms kstrdup NULL checks
	cpufreq: intel_pstate: Fix cpu->pstate.turbo_freq initialization
	spi: spi-rpc-if: Check return value of rpcif_sw_init()
	samples/kretprobes: Fix return value if register_kretprobe() failed
	KVM: s390: Fix handle_sske page fault handling
	libertas_tf: Fix possible memory leak in probe and disconnect
	libertas: Fix possible memory leak in probe and disconnect
	wcn36xx: add proper DMA memory barriers in rx path
	wcn36xx: Fix discarded frames due to wrong sequence number
	bpf: Avoid races in __bpf_prog_run() for 32bit arches
	bpf: Fixes possible race in update_prog_stats() for 32bit arches
	wcn36xx: Channel list update before hardware scan
	drm/amdgpu: fix a potential memory leak in amdgpu_device_fini_sw()
	drm/amdgpu/gmc6: fix DMA mask from 44 to 40 bits
	selftests/bpf: Fix fd cleanup in sk_lookup test
	selftests/bpf: Fix memory leak in test_ima
	sctp: allow IP fragmentation when PLPMTUD enters Error state
	sctp: reset probe_timer in sctp_transport_pl_update
	sctp: subtract sctphdr len in sctp_transport_pl_hlen
	sctp: return true only for pathmtu update in sctp_transport_pl_toobig
	net: amd-xgbe: Toggle PLL settings during rate change
	ipmi: kcs_bmc: Fix a memory leak in the error handling path of 'kcs_bmc_serio_add_device()'
	nfp: fix NULL pointer access when scheduling dim work
	nfp: fix potential deadlock when canceling dim work
	net: phylink: avoid mvneta warning when setting pause parameters
	net: bridge: fix uninitialized variables when BRIDGE_CFM is disabled
	selftests: net: bridge: update IGMP/MLD membership interval value
	crypto: pcrypt - Delay write to padata->info
	selftests/bpf: Fix fclose/pclose mismatch in test_progs
	udp6: allow SO_MARK ctrl msg to affect routing
	ibmvnic: don't stop queue in xmit
	ibmvnic: Process crqs after enabling interrupts
	ibmvnic: delay complete()
	selftests: mptcp: fix proto type in link_failure tests
	skmsg: Lose offset info in sk_psock_skb_ingress
	cgroup: Fix rootcg cpu.stat guest double counting
	bpf: Fix propagation of bounds from 64-bit min/max into 32-bit and var_off.
	bpf: Fix propagation of signed bounds from 64-bit min/max into 32-bit.
	of: unittest: fix EXPECT text for gpio hog errors
	cpufreq: Fix parameter in parse_perf_domain()
	staging: r8188eu: fix memory leak in rtw_set_key
	arm64: dts: meson: sm1: add Ethernet PHY reset line for ODROID-C4/HC4
	iio: st_sensors: disable regulators after device unregistration
	RDMA/rxe: Fix wrong port_cap_flags
	ARM: dts: BCM5301X: Fix memory nodes names
	arm64: dts: broadcom: bcm4908: Fix UART clock name
	clk: mvebu: ap-cpu-clk: Fix a memory leak in error handling paths
	scsi: pm80xx: Fix lockup in outbound queue management
	scsi: qla2xxx: edif: Use link event to wake up app
	scsi: lpfc: Fix NVMe I/O failover to non-optimized path
	ARM: s3c: irq-s3c24xx: Fix return value check for s3c24xx_init_intc()
	arm64: dts: rockchip: Fix GPU register width for RK3328
	ARM: dts: qcom: msm8974: Add xo_board reference clock to DSI0 PHY
	RDMA/bnxt_re: Fix query SRQ failure
	arm64: dts: ti: k3-j721e-main: Fix "max-virtual-functions" in PCIe EP nodes
	arm64: dts: ti: k3-j721e-main: Fix "bus-range" upto 256 bus number for PCIe
	arm64: dts: ti: j7200-main: Fix "vendor-id"/"device-id" properties of pcie node
	arm64: dts: ti: j7200-main: Fix "bus-range" upto 256 bus number for PCIe
	arm64: dts: meson-g12a: Fix the pwm regulator supply properties
	arm64: dts: meson-g12b: Fix the pwm regulator supply properties
	arm64: dts: meson-sm1: Fix the pwm regulator supply properties
	bus: ti-sysc: Fix timekeeping_suspended warning on resume
	ARM: dts: at91: tse850: the emac<->phy interface is rmii
	arm64: dts: qcom: sc7180: Base dynamic CPU power coefficients in reality
	soc: qcom: llcc: Disable MMUHWT retention
	arm64: dts: qcom: sc7280: fix display port phy reg property
	scsi: dc395: Fix error case unwinding
	MIPS: loongson64: make CPU_LOONGSON64 depends on MIPS_FP_SUPPORT
	JFS: fix memleak in jfs_mount
	pinctrl: renesas: rzg2l: Fix missing port register 21h
	ASoC: wcd9335: Use correct version to initialize Class H
	arm64: dts: qcom: msm8916: Fix Secondary MI2S bit clock
	arm64: dts: renesas: beacon: Fix Ethernet PHY mode
	iommu/mediatek: Fix out-of-range warning with clang
	arm64: dts: qcom: pm8916: Remove wrong reg-names for rtc@6000
	iommu/dma: Fix sync_sg with swiotlb
	iommu/dma: Fix arch_sync_dma for map
	ALSA: hda: Reduce udelay() at SKL+ position reporting
	ALSA: hda: Use position buffer for SKL+ again
	ALSA: usb-audio: Fix possible race at sync of urb completions
	soundwire: debugfs: use controller id and link_id for debugfs
	power: reset: at91-reset: check properly the return value of devm_of_iomap
	scsi: ufs: core: Fix ufshcd_probe_hba() prototype to match the definition
	scsi: ufs: core: Stop clearing UNIT ATTENTIONS
	scsi: megaraid_sas: Fix concurrent access to ISR between IRQ polling and real interrupt
	scsi: pm80xx: Fix misleading log statement in pm8001_mpi_get_nvmd_resp()
	driver core: Fix possible memory leak in device_link_add()
	arm: dts: omap3-gta04a4: accelerometer irq fix
	ASoC: SOF: topology: do not power down primary core during topology removal
	iio: st_pressure_spi: Add missing entries SPI to device ID table
	soc/tegra: Fix an error handling path in tegra_powergate_power_up()
	memory: fsl_ifc: fix leak of irq and nand_irq in fsl_ifc_ctrl_probe
	clk: at91: check pmc node status before registering syscore ops
	powerpc/mem: Fix arch/powerpc/mm/mem.c:53:12: error: no previous prototype for 'create_section_mapping'
	video: fbdev: chipsfb: use memset_io() instead of memset()
	powerpc: fix unbalanced node refcount in check_kvm_guest()
	powerpc/paravirt: correct preempt debug splat in vcpu_is_preempted()
	serial: 8250_dw: Drop wrong use of ACPI_PTR()
	usb: gadget: hid: fix error code in do_config()
	power: supply: rt5033_battery: Change voltage values to µV
	power: supply: max17040: fix null-ptr-deref in max17040_probe()
	scsi: csiostor: Uninitialized data in csio_ln_vnp_read_cbfn()
	RDMA/mlx4: Return missed an error if device doesn't support steering
	usb: musb: select GENERIC_PHY instead of depending on it
	staging: most: dim2: do not double-register the same device
	staging: ks7010: select CRYPTO_HASH/CRYPTO_MICHAEL_MIC
	RDMA/core: Set sgtable nents when using ib_dma_virt_map_sg()
	dyndbg: make dyndbg a known cli param
	powerpc/perf: Fix cycles/instructions as PM_CYC/PM_INST_CMPL in power10
	pinctrl: renesas: checker: Fix off-by-one bug in drive register check
	ARM: dts: stm32: Reduce DHCOR SPI NOR frequency to 50 MHz
	ARM: dts: stm32: fix STUSB1600 Type-C irq level on stm32mp15xx-dkx
	ARM: dts: stm32: fix SAI sub nodes register range
	ARM: dts: stm32: fix AV96 board SAI2 pin muxing on stm32mp15
	ASoC: cs42l42: Always configure both ASP TX channels
	ASoC: cs42l42: Correct some register default values
	ASoC: cs42l42: Defer probe if request_threaded_irq() returns EPROBE_DEFER
	soc: qcom: rpmhpd: Make power_on actually enable the domain
	soc: qcom: socinfo: add two missing PMIC IDs
	iio: buffer: Fix double-free in iio_buffers_alloc_sysfs_and_mask()
	usb: typec: STUSB160X should select REGMAP_I2C
	iio: adis: do not disabe IRQs in 'adis_init()'
	soundwire: bus: stop dereferencing invalid slave pointer
	scsi: ufs: ufshcd-pltfrm: Fix memory leak due to probe defer
	scsi: lpfc: Wait for successful restart of SLI3 adapter during host sg_reset
	serial: imx: fix detach/attach of serial console
	usb: dwc2: drd: fix dwc2_force_mode call in dwc2_ovr_init
	usb: dwc2: drd: fix dwc2_drd_role_sw_set when clock could be disabled
	usb: dwc2: drd: reset current session before setting the new one
	powerpc/booke: Disable STRICT_KERNEL_RWX, DEBUG_PAGEALLOC and KFENCE
	usb: dwc3: gadget: Skip resizing EP's TX FIFO if already resized
	firmware: qcom_scm: Fix error retval in __qcom_scm_is_call_available()
	soc: qcom: rpmhpd: fix sm8350_mxc's peer domain
	soc: qcom: apr: Add of_node_put() before return
	arm64: dts: qcom: pmi8994: Fix "eternal"->"external" typo in WLED node
	arm64: dts: qcom: sdm845: Use RPMH_CE_CLK macro directly
	arm64: dts: qcom: sdm845: Fix Qualcomm crypto engine bus clock
	pinctrl: equilibrium: Fix function addition in multiple groups
	ASoC: topology: Fix stub for snd_soc_tplg_component_remove()
	phy: qcom-qusb2: Fix a memory leak on probe
	phy: ti: gmii-sel: check of_get_address() for failure
	phy: qcom-qmp: another fix for the sc8180x PCIe definition
	phy: qcom-snps: Correct the FSEL_MASK
	phy: Sparx5 Eth SerDes: Fix return value check in sparx5_serdes_probe()
	serial: xilinx_uartps: Fix race condition causing stuck TX
	clk: at91: sam9x60-pll: use DIV_ROUND_CLOSEST_ULL
	clk: at91: clk-master: check if div or pres is zero
	clk: at91: clk-master: fix prescaler logic
	HID: u2fzero: clarify error check and length calculations
	HID: u2fzero: properly handle timeouts in usb_submit_urb
	powerpc/nohash: Fix __ptep_set_access_flags() and ptep_set_wrprotect()
	powerpc/book3e: Fix set_memory_x() and set_memory_nx()
	powerpc/44x/fsp2: add missing of_node_put
	powerpc/xmon: fix task state output
	ALSA: oxfw: fix functional regression for Mackie Onyx 1640i in v5.14 or later
	iommu/dma: Fix incorrect error return on iommu deferred attach
	powerpc: Don't provide __kernel_map_pages() without ARCH_SUPPORTS_DEBUG_PAGEALLOC
	ASoC: cs42l42: Correct configuring of switch inversion from ts-inv
	RDMA/hns: Fix initial arm_st of CQ
	RDMA/hns: Modify the value of MAX_LP_MSG_LEN to meet hardware compatibility
	ASoC: rsnd: Fix an error handling path in 'rsnd_node_count()'
	serial: cpm_uart: Protect udbg definitions by CONFIG_SERIAL_CPM_CONSOLE
	virtio_ring: check desc == NULL when using indirect with packed
	vdpa/mlx5: Fix clearing of VIRTIO_NET_F_MAC feature bit
	mips: cm: Convert to bitfield API to fix out-of-bounds access
	power: supply: bq27xxx: Fix kernel crash on IRQ handler register error
	RDMA/core: Require the driver to set the IOVA correctly during rereg_mr
	apparmor: fix error check
	rpmsg: Fix rpmsg_create_ept return when RPMSG config is not defined
	mtd: rawnand: intel: Fix potential buffer overflow in probe
	nfsd: don't alloc under spinlock in rpc_parse_scope_id
	rtc: ds1302: Add SPI ID table
	rtc: ds1390: Add SPI ID table
	rtc: pcf2123: Add SPI ID table
	remoteproc: imx_rproc: Fix TCM io memory type
	i2c: i801: Use PCI bus rescan mutex to protect P2SB access
	dmaengine: idxd: move out percpu_ref_exit() to ensure it's outside submission
	rtc: mcp795: Add SPI ID table
	Input: ariel-pwrbutton - add SPI device ID table
	i2c: mediatek: fixing the incorrect register offset
	NFS: Default change_attr_type to NFS4_CHANGE_TYPE_IS_UNDEFINED
	NFS: Don't set NFS_INO_DATA_INVAL_DEFER and NFS_INO_INVALID_DATA
	NFS: Ignore the directory size when marking for revalidation
	NFS: Fix dentry verifier races
	pnfs/flexfiles: Fix misplaced barrier in nfs4_ff_layout_prepare_ds
	drm/bridge/lontium-lt9611uxc: fix provided connector suport
	drm/plane-helper: fix uninitialized variable reference
	PCI: aardvark: Don't spam about PIO Response Status
	PCI: aardvark: Fix preserving PCI_EXP_RTCTL_CRSSVE flag on emulated bridge
	opp: Fix return in _opp_add_static_v2()
	NFS: Fix deadlocks in nfs_scan_commit_list()
	sparc: Add missing "FORCE" target when using if_changed
	fs: orangefs: fix error return code of orangefs_revalidate_lookup()
	Input: st1232 - increase "wait ready" timeout
	drm/bridge: nwl-dsi: Add atomic_get_input_bus_fmts
	mtd: spi-nor: hisi-sfc: Remove excessive clk_disable_unprepare()
	PCI: uniphier: Serialize INTx masking/unmasking and fix the bit operation
	mtd: rawnand: arasan: Prevent an unsupported configuration
	mtd: core: don't remove debugfs directory if device is in use
	remoteproc: Fix a memory leak in an error handling path in 'rproc_handle_vdev()'
	rtc: rv3032: fix error handling in rv3032_clkout_set_rate()
	dmaengine: at_xdmac: call at_xdmac_axi_config() on resume path
	dmaengine: at_xdmac: fix AT_XDMAC_CC_PERID() macro
	dmaengine: stm32-dma: fix stm32_dma_get_max_width
	NFS: Fix up commit deadlocks
	NFS: Fix an Oops in pnfs_mark_request_commit()
	Fix user namespace leak
	auxdisplay: img-ascii-lcd: Fix lock-up when displaying empty string
	auxdisplay: ht16k33: Connect backlight to fbdev
	auxdisplay: ht16k33: Fix frame buffer device blanking
	soc: fsl: dpaa2-console: free buffer before returning from dpaa2_console_read
	netfilter: nfnetlink_queue: fix OOB when mac header was cleared
	dmaengine: dmaengine_desc_callback_valid(): Check for `callback_result`
	dmaengine: tegra210-adma: fix pm runtime unbalance
	dmanegine: idxd: fix resource free ordering on driver removal
	dmaengine: idxd: reconfig device after device reset command
	signal/sh: Use force_sig(SIGKILL) instead of do_group_exit(SIGKILL)
	m68k: set a default value for MEMORY_RESERVE
	watchdog: f71808e_wdt: fix inaccurate report in WDIOC_GETTIMEOUT
	ar7: fix kernel builds for compiler test
	scsi: target: core: Remove from tmr_list during LUN unlink
	scsi: qla2xxx: Relogin during fabric disturbance
	scsi: qla2xxx: Fix gnl list corruption
	scsi: qla2xxx: Turn off target reset during issue_lip
	scsi: qla2xxx: edif: Fix app start fail
	scsi: qla2xxx: edif: Fix app start delay
	scsi: qla2xxx: edif: Flush stale events and msgs on session down
	scsi: qla2xxx: edif: Increase ELS payload
	scsi: qla2xxx: edif: Fix EDIF bsg
	NFSv4: Fix a regression in nfs_set_open_stateid_locked()
	dmaengine: idxd: fix resource leak on dmaengine driver disable
	i2c: xlr: Fix a resource leak in the error handling path of 'xlr_i2c_probe()'
	gpio: realtek-otto: fix GPIO line IRQ offset
	xen-pciback: Fix return in pm_ctrl_init()
	nbd: fix max value for 'first_minor'
	nbd: fix possible overflow for 'first_minor' in nbd_dev_add()
	io-wq: fix max-workers not correctly set on multi-node system
	net: davinci_emac: Fix interrupt pacing disable
	kselftests/net: add missed icmp.sh test to Makefile
	kselftests/net: add missed setup_loopback.sh/setup_veth.sh to Makefile
	kselftests/net: add missed SRv6 tests
	kselftests/net: add missed vrf_strict_mode_test.sh test to Makefile
	kselftests/net: add missed toeplitz.sh/toeplitz_client.sh to Makefile
	ethtool: fix ethtool msg len calculation for pause stats
	openrisc: fix SMP tlb flush NULL pointer dereference
	net: vlan: fix a UAF in vlan_dev_real_dev()
	net: dsa: felix: fix broken VLAN-tagged PTP under VLAN-aware bridge
	ice: Fix replacing VF hardware MAC to existing MAC filter
	ice: Fix not stopping Tx queues for VFs
	kdb: Adopt scheduler's task classification
	ACPI: PMIC: Fix intel_pmic_regs_handler() read accesses
	PCI: j721e: Fix j721e_pcie_probe() error path
	nvdimm/btt: do not call del_gendisk() if not needed
	scsi: bsg: Fix errno when scsi_bsg_register_queue() fails
	scsi: ufs: ufshpb: Use proper power management API
	scsi: ufs: core: Fix NULL pointer dereference
	scsi: ufs: ufshpb: Properly handle max-single-cmd
	selftests: net: properly support IPv6 in GSO GRE test
	drm/nouveau/svm: Fix refcount leak bug and missing check against null bug
	nvdimm/pmem: cleanup the disk if pmem_release_disk() is yet assigned
	block/ataflop: use the blk_cleanup_disk() helper
	block/ataflop: add registration bool before calling del_gendisk()
	block/ataflop: provide a helper for cleanup up an atari disk
	ataflop: remove ataflop_probe_lock mutex
	PCI: Do not enable AtomicOps on VFs
	cpufreq: intel_pstate: Clear HWP desired on suspend/shutdown and offline
	net: phy: fix duplex out of sync problem while changing settings
	block: fix device_add_disk() kobject_create_and_add() error handling
	drm/ttm: remove ttm_bo_vm_insert_huge()
	bonding: Fix a use-after-free problem when bond_sysfs_slave_add() failed
	octeontx2-pf: select CONFIG_NET_DEVLINK
	ALSA: memalloc: Catch call with NULL snd_dma_buffer pointer
	mfd: core: Add missing of_node_put for loop iteration
	mfd: cpcap: Add SPI device ID table
	mfd: sprd: Add SPI device ID table
	mfd: altera-sysmgr: Fix a mistake caused by resource_size conversion
	ACPI: PM: Fix device wakeup power reference counting error
	libbpf: Fix lookup_and_delete_elem_flags error reporting
	selftests/bpf/xdp_redirect_multi: Put the logs to tmp folder
	selftests/bpf/xdp_redirect_multi: Use arping to accurate the arp number
	selftests/bpf/xdp_redirect_multi: Give tcpdump a chance to terminate cleanly
	selftests/bpf/xdp_redirect_multi: Limit the tests in netns
	drm: fb_helper: improve CONFIG_FB dependency
	Revert "drm/imx: Annotate dma-fence critical section in commit path"
	drm/amdgpu/powerplay: fix sysfs_emit/sysfs_emit_at handling
	can: etas_es58x: es58x_rx_err_msg(): fix memory leak in error path
	can: mcp251xfd: mcp251xfd_chip_start(): fix error handling for mcp251xfd_chip_rx_int_enable()
	mm/zsmalloc.c: close race window between zs_pool_dec_isolated() and zs_unregister_migration()
	zram: off by one in read_block_state()
	perf bpf: Add missing free to bpf_event__print_bpf_prog_info()
	llc: fix out-of-bound array index in llc_sk_dev_hash()
	nfc: pn533: Fix double free when pn533_fill_fragment_skbs() fails
	litex_liteeth: Fix a double free in the remove function
	arm64: arm64_ftr_reg->name may not be a human-readable string
	arm64: pgtable: make __pte_to_phys/__phys_to_pte_val inline functions
	bpf, sockmap: Remove unhash handler for BPF sockmap usage
	bpf, sockmap: Fix race in ingress receive verdict with redirect to self
	bpf: sockmap, strparser, and tls are reusing qdisc_skb_cb and colliding
	bpf, sockmap: sk_skb data_end access incorrect when src_reg = dst_reg
	dmaengine: stm32-dma: fix burst in case of unaligned memory address
	dmaengine: stm32-dma: avoid 64-bit division in stm32_dma_get_max_width
	gve: Fix off by one in gve_tx_timeout()
	drm/i915/fb: Fix rounding error in subsampled plane size calculation
	init: make unknown command line param message clearer
	seq_file: fix passing wrong private data
	drm/amdgpu: fix uvd crash on Polaris12 during driver unloading
	net: dsa: mv88e6xxx: Don't support >1G speeds on 6191X on ports other than 10
	net/sched: sch_taprio: fix undefined behavior in ktime_mono_to_any
	net: hns3: fix ROCE base interrupt vector initialization bug
	net: hns3: fix pfc packet number incorrect after querying pfc parameters
	net: hns3: fix kernel crash when unload VF while it is being reset
	net: hns3: allow configure ETS bandwidth of all TCs
	net: stmmac: allow a tc-taprio base-time of zero
	net: ethernet: ti: cpsw_ale: Fix access to un-initialized memory
	net: marvell: mvpp2: Fix wrong SerDes reconfiguration order
	vsock: prevent unnecessary refcnt inc for nonblocking connect
	net/smc: fix sk_refcnt underflow on linkdown and fallback
	cxgb4: fix eeprom len when diagnostics not implemented
	selftests/net: udpgso_bench_rx: fix port argument
	thermal: int340x: fix build on 32-bit targets
	smb3: do not error on fsync when readonly
	ARM: 9155/1: fix early early_iounmap()
	ARM: 9156/1: drop cc-option fallbacks for architecture selection
	parisc: Fix backtrace to always include init funtion names
	parisc: Flush kernel data mapping in set_pte_at() when installing pte for user page
	MIPS: fix duplicated slashes for Platform file path
	MIPS: fix *-pkg builds for loongson2ef platform
	MIPS: Fix assembly error from MIPSr2 code used within MIPS_ISA_ARCH_LEVEL
	x86/mce: Add errata workaround for Skylake SKX37
	PCI/MSI: Move non-mask check back into low level accessors
	PCI/MSI: Destroy sysfs before freeing entries
	KVM: x86: move guest_pv_has out of user_access section
	posix-cpu-timers: Clear task::posix_cputimers_work in copy_process()
	irqchip/sifive-plic: Fixup EOI failed when masked
	f2fs: should use GFP_NOFS for directory inodes
	f2fs: include non-compressed blocks in compr_written_block
	f2fs: fix UAF in f2fs_available_free_memory
	ceph: fix mdsmap decode when there are MDS's beyond max_mds
	erofs: fix unsafe pagevec reuse of hooked pclusters
	drm/i915/guc: Fix blocked context accounting
	block: Hold invalidate_lock in BLKDISCARD ioctl
	block: Hold invalidate_lock in BLKZEROOUT ioctl
	block: Hold invalidate_lock in BLKRESETZONE ioctl
	ksmbd: Fix buffer length check in fsctl_validate_negotiate_info()
	ksmbd: don't need 8byte alignment for request length in ksmbd_check_message
	dmaengine: ti: k3-udma: Set bchan to NULL if a channel request fail
	dmaengine: ti: k3-udma: Set r/tchan or rflow to NULL if request fail
	dmaengine: bestcomm: fix system boot lockups
	net, neigh: Enable state migration between NUD_PERMANENT and NTF_USE
	9p/net: fix missing error check in p9_check_errors
	mm/filemap.c: remove bogus VM_BUG_ON
	memcg: prohibit unconditional exceeding the limit of dying tasks
	mm, oom: pagefault_out_of_memory: don't force global OOM for dying tasks
	mm, oom: do not trigger out_of_memory from the #PF
	mm, thp: lock filemap when truncating page cache
	mm, thp: fix incorrect unmap behavior for private pages
	mfd: dln2: Add cell for initializing DLN2 ADC
	video: backlight: Drop maximum brightness override for brightness zero
	bcache: fix use-after-free problem in bcache_device_free()
	bcache: Revert "bcache: use bvec_virt"
	PM: sleep: Avoid calling put_device() under dpm_list_mtx
	s390/cpumf: cpum_cf PMU displays invalid value after hotplug remove
	s390/cio: check the subchannel validity for dev_busid
	s390/tape: fix timer initialization in tape_std_assign()
	s390/ap: Fix hanging ioctl caused by orphaned replies
	s390/cio: make ccw_device_dma_* more robust
	remoteproc: elf_loader: Fix loading segment when is_iomem true
	remoteproc: Fix the wrong default value of is_iomem
	remoteproc: imx_rproc: Fix ignoring mapping vdev regions
	remoteproc: imx_rproc: Fix rsc-table name
	mtd: rawnand: fsmc: Fix use of SM ORDER
	mtd: rawnand: ams-delta: Keep the driver compatible with on-die ECC engines
	mtd: rawnand: xway: Keep the driver compatible with on-die ECC engines
	mtd: rawnand: mpc5121: Keep the driver compatible with on-die ECC engines
	mtd: rawnand: gpio: Keep the driver compatible with on-die ECC engines
	mtd: rawnand: pasemi: Keep the driver compatible with on-die ECC engines
	mtd: rawnand: orion: Keep the driver compatible with on-die ECC engines
	mtd: rawnand: plat_nand: Keep the driver compatible with on-die ECC engines
	mtd: rawnand: au1550nd: Keep the driver compatible with on-die ECC engines
	powerpc/vas: Fix potential NULL pointer dereference
	powerpc/bpf: Fix write protecting JIT code
	powerpc/32e: Ignore ESR in instruction storage interrupt handler
	powerpc/powernv/prd: Unregister OPAL_MSG_PRD2 notifier during module unload
	powerpc/security: Use a mutex for interrupt exit code patching
	powerpc/64s/interrupt: Fix check_return_regs_valid() false positive
	powerpc/pseries/mobility: ignore ibm, platform-facilities updates
	powerpc/85xx: fix timebase sync issue when CONFIG_HOTPLUG_CPU=n
	drm/sun4i: Fix macros in sun8i_csc.h
	PCI: Add PCI_EXP_DEVCTL_PAYLOAD_* macros
	PCI: aardvark: Fix PCIe Max Payload Size setting
	SUNRPC: Partial revert of commit 6f9f17287e
	drm/amd/display: Look at firmware version to determine using dmub on dcn21
	media: vidtv: move kfree(dvb) to vidtv_bridge_dev_release()
	cifs: fix memory leak of smb3_fs_context_dup::server_hostname
	ath10k: fix invalid dma_addr_t token assignment
	mmc: moxart: Fix null pointer dereference on pointer host
	selftests/x86/iopl: Adjust to the faked iopl CLI/STI usage
	selftests/bpf: Fix also no-alu32 strobemeta selftest
	arch/cc: Introduce a function to check for confidential computing features
	x86/sev: Add an x86 version of cc_platform_has()
	x86/sev: Make the #VC exception stacks part of the default stacks storage
	media: videobuf2: always set buffer vb2 pointer
	media: videobuf2-dma-sg: Fix buf->vb NULL pointer dereference
	Linux 5.15.3

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I09574eb6b4fbe930bd13f932cc618846972fcc27
2021-11-19 15:38:07 +01:00
Quentin Perret
a008d05d84 UPSTREAM: KVM: arm64: Fix host stage-2 finalization
We currently walk the hypervisor stage-1 page-table towards the end of
hyp init in nVHE protected mode and adjust the host page ownership
attributes in its stage-2 in order to get a consistent state from both
point of views. The walk is done on the entire hyp VA space, and expects
to only ever find page-level mappings. While this expectation is
reasonable in the half of hyp VA space that maps memory with a fixed
offset (see the loop in pkvm_create_mappings_locked()), it can be
incorrect in the other half where nothing prevents the usage of block
mappings. For instance, on systems where memory is physically aligned at
an address that happens to maps to a PMD aligned VA in the hyp_vmemmap,
kvm_pgtable_hyp_map() will install block mappings when backing the
hyp_vmemmap, which will later cause finalize_host_mappings() to fail.
Furthermore, it should be noted that all pages backing the hyp_vmemmap
are also mapped in the 'fixed offset range' of the hypervisor, which
implies that finalize_host_mappings() will walk both aliases and update
the host stage-2 attributes twice. The order in which this happens is
unpredictable, though, since the hyp VA layout is highly dependent on
the position of the idmap page, hence resulting in a fragile mess at
best.

In order to fix all of this, let's restrict the finalization walk to
only cover memory regions in the 'fixed-offset range' of the hyp VA
space and nothing else. This not only fixes a correctness issue, but
will also result in a slighlty faster hyp initialization overall.

Fixes: 2c50166c62 ("KVM: arm64: Mark host bss and rodata section as shared")
Signed-off-by: Quentin Perret <qperret@google.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211108154636.393384-1-qperret@google.com
(cherry picked from commit 50a8d33159)
Bug: 204960018
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: Iaee2451a22cd174b49498aa5f97ddeafa2670f57
2021-11-19 09:49:28 +00:00
YueHaibing
3ed022fd1b UPSTREAM: KVM: arm64: Change the return type of kvm_vcpu_preferred_target()
kvm_vcpu_preferred_target() always return 0 because kvm_target_cpu()
never returns a negative error code.

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Reviewed-by: Alexandru Elisei <alexandru.elisei@arm.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211105011500.16280-1-yuehaibing@huawei.com
(cherry picked from commit 08e873cb70)
Bug: 204960018
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: I39e83529eff560f692853be9e9aba8d6200a824c
2021-11-19 09:49:28 +00:00
Randy Dunlap
d9ab1c08c9 UPSTREAM: KVM: arm64: nvhe: Fix a non-kernel-doc comment
Do not use kernel-doc "/**" notation when the comment is not in
kernel-doc format.

Fixes this docs build warning:

arch/arm64/kvm/hyp/nvhe/sys_regs.c:478: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst
    * Handler for protected VM restricted exceptions.

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Reported-by: kernel test robot <lkp@intel.com>
Cc: Fuad Tabba <tabba@google.com>
Cc: Marc Zyngier <maz@kernel.org>
Cc: linux-arm-kernel@lists.infradead.org
Cc: kvmarm@lists.cs.columbia.edu
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211106032529.15057-1-rdunlap@infradead.org
(cherry picked from commit deacd669e1)
Bug: 204960018
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: Ie5f39f8417faae235f005824d71c4e25274c529c
2021-11-19 09:49:28 +00:00
Mark Rutland
f4a7c134df UPSTREAM: KVM: arm64: Extract ESR_ELx.EC only
Since ARMv8.0 the upper 32 bits of ESR_ELx have been RES0, and recently
some of the upper bits gained a meaning and can be non-zero. For
example, when FEAT_LS64 is implemented, ESR_ELx[36:32] contain ISS2,
which for an ST64BV or ST64BV0 can be non-zero. This can be seen in ARM
DDI 0487G.b, page D13-3145, section D13.2.37.

Generally, we must not rely on RES0 bit remaining zero in future, and
when extracting ESR_ELx.EC we must mask out all other bits.

All C code uses the ESR_ELx_EC() macro, which masks out the irrelevant
bits, and therefore no alterations are required to C code to avoid
consuming irrelevant bits.

In a couple of places the KVM assembly extracts ESR_ELx.EC using LSR on
an X register, and so could in theory consume previously RES0 bits. In
both cases this is for comparison with EC values ESR_ELx_EC_HVC32 and
ESR_ELx_EC_HVC64, for which the upper bits of ESR_ELx must currently be
zero, but this could change in future.

This patch adjusts the KVM vectors to use UBFX rather than LSR to
extract ESR_ELx.EC, ensuring these are robust to future additions to
ESR_ELx.

Cc: stable@vger.kernel.org
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Cc: Alexandru Elisei <alexandru.elisei@arm.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: James Morse <james.morse@arm.com>
Cc: Marc Zyngier <maz@kernel.org>
Cc: Suzuki K Poulose <suzuki.poulose@arm.com>
Cc: Will Deacon <will@kernel.org>
Acked-by: Will Deacon <will@kernel.org>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211103110545.4613-1-mark.rutland@arm.com
(cherry picked from commit 8bb084119f)
Bug: 204960018
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: I0534f9965de8b9cc657927a13944792719ff1a87
2021-11-19 09:49:28 +00:00
Marc Zyngier
1f222ed7d1 UPSTREAM: KVM: arm64: pkvm: Give priority to standard traps over pvm handling
Checking for pvm handling first means that we cannot handle ptrauth
traps or apply any of the workarounds (GICv3 or TX2 #219).

Flip the order around.

Signed-off-by: Marc Zyngier <maz@kernel.org>
Reviewed-by: Fuad Tabba <tabba@google.com>
Tested-by: Fuad Tabba <tabba@google.com>
Link: https://lore.kernel.org/r/20211013120346.2926621-12-maz@kernel.org
(cherry picked from commit 0730559011)
Bug: 204960018
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: I89b2cf3dd330ddcde01c8da3dc42aac83be05c0b
2021-11-19 09:49:28 +00:00
Marc Zyngier
29243d4128 UPSTREAM: KVM: arm64: pkvm: Pass vpcu instead of kvm to kvm_get_exit_handler_array()
Passing a VM pointer around is odd, and results in extra work on
VHE. Follow the rest of the design that uses the vcpu instead, and
let the nVHE code look into the struct kvm as required.

Signed-off-by: Marc Zyngier <maz@kernel.org>
Reviewed-by: Fuad Tabba <tabba@google.com>
Tested-by: Fuad Tabba <tabba@google.com>
Link: https://lore.kernel.org/r/20211013120346.2926621-11-maz@kernel.org
(cherry picked from commit 0c7639cc83)
Bug: 204960018
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: I729249b737cdfa9044a062623ebc38a151b65be9
2021-11-19 09:49:28 +00:00
Marc Zyngier
120100bc7a UPSTREAM: KVM: arm64: pkvm: Move kvm_handle_pvm_restricted around
Place kvm_handle_pvm_restricted() next to its little friends such
as kvm_handle_pvm_sysreg().

This allows to make inject_undef64() static.

Signed-off-by: Marc Zyngier <maz@kernel.org>
Reviewed-by: Fuad Tabba <tabba@google.com>
Tested-by: Fuad Tabba <tabba@google.com>
Link: https://lore.kernel.org/r/20211013120346.2926621-10-maz@kernel.org
(cherry picked from commit 746bdeadc5)
Bug: 204960018
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: I685939f25878d46c954233763ee5c040b793ab8b
2021-11-19 09:49:28 +00:00
Marc Zyngier
8e55be5ce7 UPSTREAM: KVM: arm64: pkvm: Consolidate include files
kvm_fixed_config.h is pkvm specific, and would be better placed
near its users. At the same time, include/nvhe/sys_regs.h is now
almost empty.

Merge the two into arch/arm64/kvm/hyp/include/nvhe/fixed_config.h.

Signed-off-by: Marc Zyngier <maz@kernel.org>
Reviewed-by: Fuad Tabba <tabba@google.com>
Tested-by: Fuad Tabba <tabba@google.com>
Link: https://lore.kernel.org/r/20211013120346.2926621-9-maz@kernel.org
(cherry picked from commit 3061725d16)
Bug: 204960018
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: Ic49cfff8fd36a7b3b59d398ff1a17d32ccef9966
2021-11-19 09:49:27 +00:00
Marc Zyngier
81030382f3 UPSTREAM: KVM: arm64: pkvm: Preserve pending SError on exit from AArch32
Don't drop a potential SError when a guest gets caught red-handed
running AArch32 code.

Signed-off-by: Marc Zyngier <maz@kernel.org>
Reviewed-by: Fuad Tabba <tabba@google.com>
Tested-by: Fuad Tabba <tabba@google.com>
Link: https://lore.kernel.org/r/20211013120346.2926621-8-maz@kernel.org
(cherry picked from commit 271b728605)
Bug: 204960018
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: I088567169eed5d1fc3083e9356bebaa9cef8b120
2021-11-19 09:49:27 +00:00
Marc Zyngier
b9220c350c UPSTREAM: KVM: arm64: pkvm: Handle GICv3 traps as required
Forward accesses to the ICV_*SGI*_EL1 registers to EL1, and
emulate ICV_SRE_EL1 by returning a fixed value.

This should be enough to support GICv3 in a protected guest.

Signed-off-by: Marc Zyngier <maz@kernel.org>
Reviewed-by: Fuad Tabba <tabba@google.com>
Tested-by: Fuad Tabba <tabba@google.com>
Link: https://lore.kernel.org/r/20211013120346.2926621-7-maz@kernel.org
(cherry picked from commit cbca197384)
Bug: 204960018
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: I558b29e59e2eeb2a5f67ec195a11e938688aaf77
2021-11-19 09:49:27 +00:00
Marc Zyngier
2a586031f7 UPSTREAM: KVM: arm64: pkvm: Drop sysregs that should never be routed to the host
A bunch of system registers (most of them MM related) should never
trap to the host under any circumstance. Keep them close to our chest.

Signed-off-by: Marc Zyngier <maz@kernel.org>
Reviewed-by: Fuad Tabba <tabba@google.com>
Tested-by: Fuad Tabba <tabba@google.com>
Link: https://lore.kernel.org/r/20211013120346.2926621-6-maz@kernel.org
(cherry picked from commit f3d5ccabab)
Bug: 204960018
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: If57c2ad25f496e74fdee2e81369e4c430ca78410
2021-11-19 09:49:27 +00:00
Marc Zyngier
066e103c51 UPSTREAM: KVM: arm64: pkvm: Drop AArch32-specific registers
All the SYS_*32_EL2 registers are AArch32-specific. Since we forbid
AArch32, there is no need to handle those in any way.

Signed-off-by: Marc Zyngier <maz@kernel.org>
Reviewed-by: Andrew Jones <drjones@redhat.com>
Reviewed-by: Fuad Tabba <tabba@google.com>
Tested-by: Fuad Tabba <tabba@google.com>
Link: https://lore.kernel.org/r/20211013120346.2926621-5-maz@kernel.org
(cherry picked from commit 3c90cb15e2)
Bug: 204960018
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: I21b0eeb7d9558ccb1711db540988ba45df83a19f
2021-11-19 09:49:27 +00:00
Marc Zyngier
738dfc430c UPSTREAM: KVM: arm64: pkvm: Make the ERR/ERX*_EL1 registers RAZ/WI
The ERR*/ERX* registers should be handled as RAZ/WI, and there
should be no need to involve EL1 for that.

Add a helper that handles such registers, and repaint the sysreg
table to declare these registers as RAZ/WI.

Signed-off-by: Marc Zyngier <maz@kernel.org>
Reviewed-by: Andrew Jones <drjones@redhat.com>
Reviewed-by: Fuad Tabba <tabba@google.com>
Tested-by: Fuad Tabba <tabba@google.com>
Link: https://lore.kernel.org/r/20211013120346.2926621-4-maz@kernel.org
(cherry picked from commit 8ffb418883)
Bug: 204960018
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: I05e1542f2f6f4aa4fb4f7f273503ddd1799488c2
2021-11-19 09:49:27 +00:00
Marc Zyngier
6f27c7ee45 UPSTREAM: KVM: arm64: pkvm: Use a single function to expose all id-regs
Rather than exposing a whole set of helper functions to retrieve
individual ID registers, use the existing decoding tree and expose
a single helper instead.

This allow a number of functions to be made static, and we now
have a single entry point to maintain.

Signed-off-by: Marc Zyngier <maz@kernel.org>
Reviewed-by: Andrew Jones <drjones@redhat.com>
Reviewed-by: Fuad Tabba <tabba@google.com>
Tested-by: Fuad Tabba <tabba@google.com>
Link: https://lore.kernel.org/r/20211013120346.2926621-3-maz@kernel.org
(cherry picked from commit ce75916749)
Bug: 204960018
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: I157fad2bc3ed6153f8adf88c99fcc0970fdff449
2021-11-19 09:49:27 +00:00
Marc Zyngier
77146fb45c UPSTREAM: KVM: arm64: Fix early exit ptrauth handling
The previous rework of the early exit code to provide an EC-based
decoding tree missed the fact that we have two trap paths for
ptrauth: the instructions (EC_PAC) and the sysregs (EC_SYS64).

Rework the handlers to call the ptrauth handling code on both
paths.

Signed-off-by: Marc Zyngier <maz@kernel.org>
Reviewed-by: Fuad Tabba <tabba@google.com>
Tested-by: Fuad Tabba <tabba@google.com>
Link: https://lore.kernel.org/r/20211013120346.2926621-2-maz@kernel.org
(cherry picked from commit 8a049862c3)
Bug: 204960018
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: I4c0637e413db9a5798e7739289b246553b1c1c52
2021-11-19 09:49:27 +00:00
Jia He
e1fad7c425 UPSTREAM: KVM: arm64: Add memcg accounting to KVM allocations
Inspired by commit 254272ce65 ("kvm: x86: Add memcg accounting to KVM
allocations"), it would be better to make arm64 KVM consistent with
common kvm codes.

The memory allocations of VM scope should be charged into VM process
cgroup, hence change GFP_KERNEL to GFP_KERNEL_ACCOUNT.

There remain a few cases since these allocations are global, not in VM
scope.

Signed-off-by: Jia He <justin.he@arm.com>
Reviewed-by: Oliver Upton <oupton@google.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20210907123112.10232-3-justin.he@arm.com
(cherry picked from commit 115bae923a)
Bug: 204960018
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: I54f9a681446a07e0f0319ed8a07fb641ce1c7dcc
2021-11-19 09:49:26 +00:00
Jia He
da5b0ba023 UPSTREAM: KVM: arm64: vgic: Add memcg accounting to vgic allocations
Inspired by commit 254272ce65 ("kvm: x86: Add memcg accounting to KVM
allocations"), it would be better to make arm64 vgic consistent with
common kvm codes.

The memory allocations of VM scope should be charged into VM process
cgroup, hence change GFP_KERNEL to GFP_KERNEL_ACCOUNT.

There remain a few cases since these allocations are global, not in VM
scope.

Signed-off-by: Jia He <justin.he@arm.com>
Reviewed-by: Oliver Upton <oupton@google.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20210907123112.10232-2-justin.he@arm.com
(cherry picked from commit 3ef231670b)
Bug: 204960018
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: Id635a38791f61c7c04a9a1d255f0418e7da2bac8
2021-11-19 09:49:26 +00:00
Marc Zyngier
b351a76cf0 UPSTREAM: KVM: arm64: vgic-v3: Align emulated cpuif LPI state machine with the pseudocode
Having realised that a virtual LPI does transition through an active
state that does not exist on bare metal, align the CPU interface
emulation with the behaviour specified in the architecture pseudocode.

The LPIs now transition to active on IAR read, and to inactive on
EOI write. Special care is taken not to increment the EOIcount for
an LPI that isn't present in the LRs.

Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211010150910.2911495-6-maz@kernel.org
(cherry picked from commit 9d449c71bd)
Bug: 204960018
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: I93a517888cbcd56560920cb2cb9d671542591d7e
2021-11-19 09:49:26 +00:00
Marc Zyngier
1cb157aaf0 UPSTREAM: KVM: arm64: vgic-v3: Don't advertise ICC_CTLR_EL1.SEIS
Since we are trapping all sysreg accesses when ICH_VTR_EL2.SEIS
is set, and that we never deliver an SError when emulating
any of the GICv3 sysregs, don't advertise ICC_CTLR_EL1.SEIS.

Reviewed-by: Alexandru Elisei <alexandru.elisei@arm.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211010150910.2911495-5-maz@kernel.org
(cherry picked from commit f87ab68272)
Bug: 204960018
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: I6b4876d925b148a36b492fc23243d8f36a529fbb
2021-11-19 09:49:26 +00:00
Marc Zyngier
cafc5bbbd3 UPSTREAM: KVM: arm64: vgic-v3: Reduce common group trapping to ICV_DIR_EL1 when possible
On systems that advertise ICH_VTR_EL2.SEIS, we trap all GICv3 sysreg
accesses from the guest. From a performance perspective, this is OK
as long as the guest doesn't hammer the GICv3 CPU interface.

In most cases, this is fine, unless the guest actively uses
priorities and switches PMR_EL1 very often. Which is exactly what
happens when a Linux guest runs with irqchip.gicv3_pseudo_nmi=1.
In these condition, the performance plumets as we hit PMR each time
we mask/unmask interrupts. Not good.

There is however an opportunity for improvement. Careful reading
of the architecture specification indicates that the only GICv3
sysreg belonging to the common group (which contains the SGI
registers, PMR, DIR, CTLR and RPR) that is allowed to generate
a SError is DIR. Everything else is safe.

It is thus possible to substitute the trapping of all the common
group with just that of DIR if it supported by the implementation.
Yes, that's yet another optional bit of the architecture.
So let's just do that, as it leads to some impressive result on
the M1:

Without this change:
	bash-5.1# /host/home/maz/hackbench 100 process 1000
	Running with 100*40 (== 4000) tasks.
	Time: 56.596

With this change:
	bash-5.1# /host/home/maz/hackbench 100 process 1000
	Running with 100*40 (== 4000) tasks.
	Time: 8.649

which is a pretty convincing result.

Signed-off-by: Marc Zyngier <maz@kernel.org>
Reviewed-by: Alexandru Elisei <alexandru.elisei@arm.com>
Link: https://lore.kernel.org/r/20211010150910.2911495-4-maz@kernel.org
(cherry picked from commit 0924729b21)
Bug: 204960018
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: I93eeac29ea47f1f03d0dc4dd97efe9e2ec18db58
2021-11-19 09:49:26 +00:00
Marc Zyngier
c7734acd77 UPSTREAM: KVM: arm64: vgic-v3: Work around GICv3 locally generated SErrors
The infamous M1 has a feature nobody else ever implemented,
in the form of the "GIC locally generated SError interrupts",
also known as SEIS for short.

These SErrors are generated when a guest does something that violates
the GIC state machine. It would have been simpler to just *ignore*
the damned thing, but that's not what this HW does. Oh well.

This part of of the architecture is also amazingly under-specified.
There is a whole 10 lines that describe the feature in a spec that
is 930 pages long, and some of these lines are factually wrong.
Oh, and it is deprecated, so the insentive to clarify it is low.

Now, the spec says that this should be a *virtual* SError when
HCR_EL2.AMO is set. As it turns out, that's not always the case
on this CPU, and the SError sometimes fires on the host as a
physical SError. Goodbye, cruel world. This clearly is a HW bug,
and it means that a guest can easily take the host down, on demand.

Thankfully, we have seen systems that were just as broken in the
past, and we have the perfect vaccine for it.

Apple M1, please meet the Cavium ThunderX workaround. All your
GIC accesses will be trapped, sanitised, and emulated. Only the
signalling aspect of the HW will be used. It won't be super speedy,
but it will at least be safe. You're most welcome.

Given that this has only ever been seen on this single implementation,
that the spec is unclear at best and that we cannot trust it to ever
be implemented correctly, gate the workaround solely on ICH_VTR_EL2.SEIS
being set.

Tested-by: Joey Gouly <joey.gouly@arm.com>
Reviewed-by: Alexandru Elisei <alexandru.elisei@arm.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211010150910.2911495-3-maz@kernel.org
(cherry picked from commit df652bcf11)
Bug: 204960018
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: Icee1ac199b1e6850d6d487d386f2e6e6929c19ca
2021-11-19 09:49:26 +00:00
Marc Zyngier
9994edf143 UPSTREAM: KVM: arm64: Force ID_AA64PFR0_EL1.GIC=1 when exposing a virtual GICv3
Until now, we always let ID_AA64PFR0_EL1.GIC reflect the value
visible on the host, even if we were running a GICv2-enabled VM
on a GICv3+compat host.

That's fine, but we also now have the case of a host that does not
expose ID_AA64PFR0_EL1.GIC==1 despite having a vGIC. Yes, this is
confusing. Thank you M1.

Let's go back to first principles and expose ID_AA64PFR0_EL1.GIC=1
when a GICv3 is exposed to the guest. This also hides a GICv4.1
CPU interface from the guest which has no business knowing about
the v4.1 extension.

Reviewed-by: Alexandru Elisei <alexandru.elisei@arm.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211010150910.2911495-2-maz@kernel.org
(cherry picked from commit 562e530fd7)
Bug: 204960018
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: Iffb0a1fcd962413e7048f48efb5129c723ebaddc
2021-11-19 09:49:26 +00:00
Marc Zyngier
e58bd00b4c UPSTREAM: KVM: arm64: Fix reporting of endianess when the access originates at EL0
We currently check SCTLR_EL1.EE when computing the address of
a faulting guest access. However, the fault could have occured at
EL0, in which case the right bit to check would be SCTLR_EL1.E0E.

This is pretty unlikely to cause any issue in practice: You'd have
to have a guest with a LE EL1 and a BE EL0 (or the other way around),
and have mapped a device into the EL0 page tables.

Good luck with that!

Signed-off-by: Marc Zyngier <maz@kernel.org>
Reviewed-by: Andrew Jones <drjones@redhat.com>
Link: https://lore.kernel.org/r/20211012112312.1247467-1-maz@kernel.org
(cherry picked from commit 69adec18e9)
Bug: 204960018
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: I63c040ceb6aeabb9bc70a51f43f2136ebf381a41
2021-11-19 09:49:25 +00:00
Alexandru Elisei
54e3c184e4 UPSTREAM: Documentation: admin-guide: Document side effects when pKVM is enabled
Recent changes to KVM for arm64 has made it impossible for the host to
hibernate or use kexec when protected mode is enabled via the kernel
command line.

There are people who rely on kexec (for example, developers who use kexec
as a quick way to test a new kernel), let's document this change in
behaviour, so it doesn't catch them by surprise and we have a place to
point people to if it does.

Signed-off-by: Alexandru Elisei <alexandru.elisei@arm.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211011153835.291147-1-alexandru.elisei@arm.com
(cherry picked from commit 53e8ce137f)
Bug: 204960018
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: I674520b73423e9a7c705788853ad7d9e8f1be2e2
2021-11-19 09:49:25 +00:00
Fuad Tabba
785107d23e UPSTREAM: KVM: arm64: Handle protected guests at 32 bits
Protected KVM does not support protected AArch32 guests. However,
it is possible for the guest to force run AArch32, potentially
causing problems. Add an extra check so that if the hypervisor
catches the guest doing that, it can prevent the guest from
running again by resetting vcpu->arch.target and returning
ARM_EXCEPTION_IL.

If this were to happen, The VMM can try and fix it by re-
initializing the vcpu with KVM_ARM_VCPU_INIT, however, this is
likely not possible for protected VMs.

Adapted from commit 22f553842b ("KVM: arm64: Handle Asymmetric
AArch32 systems")

Signed-off-by: Fuad Tabba <tabba@google.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211010145636.1950948-12-tabba@google.com
(cherry picked from commit 5f39efc420)
Bug: 204960018
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: I0bf557b32ef0a6bae510e4a97fbdb2ed0359355d
2021-11-19 09:49:25 +00:00
Fuad Tabba
96d1022552 UPSTREAM: KVM: arm64: Trap access to pVM restricted features
Trap accesses to restricted features for VMs running in protected
mode.

Access to feature registers are emulated, and only supported
features are exposed to protected VMs.

Accesses to restricted registers as well as restricted
instructions are trapped, and an undefined exception is injected
into the protected guests, i.e., with EC = 0x0 (unknown reason).
This EC is the one used, according to the Arm Architecture
Reference Manual, for unallocated or undefined system registers
or instructions.

Only affects the functionality of protected VMs. Otherwise,
should not affect non-protected VMs when KVM is running in
protected mode.

Signed-off-by: Fuad Tabba <tabba@google.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211010145636.1950948-11-tabba@google.com
(cherry picked from commit 1423afcb41)
Bug: 204960018
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: I380d0b748414254a2ae25eb3a10a5c2a34a7c6a9
2021-11-19 09:49:25 +00:00
Fuad Tabba
a27c55e656 UPSTREAM: KVM: arm64: Move sanitized copies of CPU features
Move the sanitized copies of the CPU feature registers to the
recently created sys_regs.c. This consolidates all copies in a
more relevant file.

No functional change intended.

Acked-by: Will Deacon <will@kernel.org>
Signed-off-by: Fuad Tabba <tabba@google.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211010145636.1950948-10-tabba@google.com
(cherry picked from commit 72e1be120e)
Bug: 204960018
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: I4138d2c02c7f10427dea8c50b4e205a26d88b99b
2021-11-19 09:49:25 +00:00
Fuad Tabba
c46d0a44ac BACKPORT: KVM: arm64: Initialize trap registers for protected VMs
Protected VMs have more restricted features that need to be
trapped. Moreover, the host should not be trusted to set the
appropriate trapping registers and their values.

Initialize the trapping registers, i.e., hcr_el2, mdcr_el2, and
cptr_el2 at EL2 for protected guests, based on the values of the
guest's feature id registers.

No functional change intended as trap handlers introduced in the
previous patch are still not hooked in to the guest exit
handlers.

Reviewed-by: Andrew Jones <drjones@redhat.com>
Signed-off-by: Fuad Tabba <tabba@google.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211010145636.1950948-9-tabba@google.com
(cherry picked from commit 2a0c343386)
[willdeacon@: Resolve conflict with hypercall definitions moving to an enum]
Bug: 204960018
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: I16390fa00dbbd8c08e4c84a6a718f8b743212b95
2021-11-19 09:49:25 +00:00
Fuad Tabba
77cc37c709 UPSTREAM: KVM: arm64: Add handlers for protected VM System Registers
Add system register handlers for protected VMs. These cover Sys64
registers (including feature id registers), and debug.

No functional change intended as these are not hooked in yet to
the guest exit handlers introduced earlier. So when trapping is
triggered, the exit handlers let the host handle it, as before.

Reviewed-by: Andrew Jones <drjones@redhat.com>
Signed-off-by: Fuad Tabba <tabba@google.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211010145636.1950948-8-tabba@google.com
(cherry picked from commit 6c30bfb18d)
Bug: 204960018
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: I6b1f89f181739383c2354dab88f7f8044551febf
2021-11-19 09:49:25 +00:00
Fuad Tabba
ced18464a8 UPSTREAM: KVM: arm64: Simplify masking out MTE in feature id reg
Simplify code for hiding MTE support in feature id register when
MTE is not enabled/supported by KVM.

No functional change intended.

Signed-off-by: Fuad Tabba <tabba@google.com>
Reviewed-by: Andrew Jones <drjones@redhat.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211010145636.1950948-7-tabba@google.com
(cherry picked from commit 16dd1fbb12)
Bug: 204960018
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: Ida53f2393ec89e1f6bb89f6bdffdc6461fadbf5f
2021-11-19 09:49:24 +00:00
Fuad Tabba
4a31d4f906 UPSTREAM: KVM: arm64: Add missing field descriptor for MDCR_EL2
It's not currently used. Added for completeness.

No functional change intended.

Suggested-by: Marc Zyngier <maz@kernel.org>
Signed-off-by: Fuad Tabba <tabba@google.com>
Reviewed-by: Andrew Jones <drjones@redhat.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211010145636.1950948-6-tabba@google.com
(cherry picked from commit 5386839077)
Bug: 204960018
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: I5285c895d38977e85311f61d12085d7c04608707
2021-11-19 09:49:24 +00:00
Fuad Tabba
8ad0f67319 UPSTREAM: KVM: arm64: Pass struct kvm to per-EC handlers
We need struct kvm to check for protected VMs to be able to pick
the right handlers for them in subsequent patches.

Signed-off-by: Fuad Tabba <tabba@google.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211010145636.1950948-5-tabba@google.com
(cherry picked from commit 3b1a690eda)
Bug: 204960018
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: I806c6b96f894b22da284f3864cd1820c74a59275
2021-11-19 09:49:24 +00:00
Marc Zyngier
06801e6c69 UPSTREAM: KVM: arm64: Move early handlers to per-EC handlers
Simplify the early exception handling by slicing the gigantic decoding
tree into a more manageable set of functions, similar to what we have
in handle_exit.c.

This will also make the structure reusable for pKVM's own early exit
handling.

Signed-off-by: Marc Zyngier <maz@kernel.org>
Signed-off-by: Fuad Tabba <tabba@google.com>
Link: https://lore.kernel.org/r/20211010145636.1950948-4-tabba@google.com
(cherry picked from commit 8fb2046180)
Bug: 204960018
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: I73dea0f33208fa7ac41a945b46a09b5d4dfcf969
2021-11-19 09:49:24 +00:00
Marc Zyngier
562c61deb4 UPSTREAM: KVM: arm64: Don't include switch.h into nvhe/kvm-main.c
hyp-main.c includes switch.h while it only requires adjust-pc.h.
Fix it to remove an unnecessary dependency.

Signed-off-by: Marc Zyngier <maz@kernel.org>
Signed-off-by: Fuad Tabba <tabba@google.com>
Link: https://lore.kernel.org/r/20211010145636.1950948-3-tabba@google.com
(cherry picked from commit cc1e6fdfa9)
Bug: 204960018
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: I4ebb380d0938c9c52a28290600834ca564524ba5
2021-11-19 09:49:24 +00:00
Marc Zyngier
5e6725db6f UPSTREAM: KVM: arm64: Move __get_fault_info() and co into their own include file
In order to avoid including the whole of the switching helpers
in unrelated files, move the __get_fault_info() and related helpers
into their own include file.

Signed-off-by: Marc Zyngier <maz@kernel.org>
Signed-off-by: Fuad Tabba <tabba@google.com>
Link: https://lore.kernel.org/r/20211010145636.1950948-2-tabba@google.com
(cherry picked from commit 7dd9b5a157)
Bug: 204960018
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: Ibe44e3c8ad84233cbbd4c5d66f42f0e8578d7b86
2021-11-19 09:49:24 +00:00
Alexandru Elisei
f81bc95f27 UPSTREAM: KVM: arm64: Replace get_raz_id_reg() with get_raz_reg()
Reading a RAZ ID register isn't different from reading any other RAZ
register, so get rid of get_raz_id_reg() and replace it with get_raz_reg(),
which does the same thing, but does it without going through two layers of
indirection.

No functional change.

Suggested-by: Andrew Jones <drjones@redhat.com>
Signed-off-by: Alexandru Elisei <alexandru.elisei@arm.com>
Reviewed-by: Andrew Jones <drjones@redhat.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211011105840.155815-4-alexandru.elisei@arm.com
(cherry picked from commit ebf6aa8c04)
Bug: 204960018
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: Idd8725ff57571a1cb1c95a0ddcf35059e4a41ccc
2021-11-19 09:49:24 +00:00
Alexandru Elisei
c0b53ae7d3 UPSTREAM: KVM: arm64: Use get_raz_reg() for userspace reads of PMSWINC_EL0
PMSWINC_EL0 is a write-only register and was initially part of the VCPU
register state, but was later removed in commit 7a3ba3095a ("KVM:
arm64: Remove PMSWINC_EL0 shadow register"). To prevent regressions, the
register was kept accessible from userspace as Read-As-Zero (RAZ).

The read function that is used to handle userspace reads of this
register is get_raz_id_reg(), which, while technically correct, as it
returns 0, it is not semantically correct, as PMSWINC_EL0 is not an ID
register as the function name suggests.

Add a new function, get_raz_reg(), to use it as the accessor for
PMSWINC_EL0, as to not conflate get_raz_id_reg() to handle other types
of registers.

No functional change intended.

Signed-off-by: Alexandru Elisei <alexandru.elisei@arm.com>
Reviewed-by: Andrew Jones <drjones@redhat.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211011105840.155815-3-alexandru.elisei@arm.com
(cherry picked from commit 5a43097623)
Bug: 204960018
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: I6e64f10097c1f1e6094ea0c4c48b03c69fa7053b
2021-11-19 09:49:24 +00:00
Alexandru Elisei
367a7bc97a UPSTREAM: KVM: arm64: Return early from read_id_reg() if register is RAZ
If read_id_reg() is called for an ID register which is Read-As-Zero (RAZ),
it initializes the return value to zero, then goes through a list of
registers which require special handling before returning the final value.

By not returning as soon as it checks that the register should be RAZ, the
function creates the opportunity for bugs, if, for example, a patch changes
a register to RAZ (like has happened with PMSWINC_EL0 in commit
11663111cd), but doesn't remove the special handling from read_id_reg();
or if a register is RAZ in certain situations, but readable in others.

Return early to make it impossible for a RAZ register to be anything other
than zero.

Reviewed-by: Andrew Jones <drjones@redhat.com>
Signed-off-by: Alexandru Elisei <alexandru.elisei@arm.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211011105840.155815-2-alexandru.elisei@arm.com
(cherry picked from commit 00d5101b25)
Bug: 204960018
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: I048ae4c92f29e617326807536de760a4e3536f83
2021-11-19 09:49:23 +00:00
Sean Christopherson
13bb7faff2 UPSTREAM: KVM: arm64: Depend on HAVE_KVM instead of OF
Select HAVE_KVM at all times on arm64, as the OF requirement is
always there (even in the case of an ACPI system, we still depend
on some of the OF infrastructure), and won't fo away.

No functional change intended.

Signed-off-by: Sean Christopherson <seanjc@google.com>
Acked-by: Will Deacon <will@kernel.org>
[maz: Drop the "HAVE_KVM if OF" dependency, as OF is always there on arm64,
 new commit message]
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20210921222231.518092-3-seanjc@google.com
(cherry picked from commit e26bb75aa2)
Bug: 204960018
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: I64236d409454463bf0f2b0a2efb2e5a00d8f3deb
2021-11-19 09:49:23 +00:00
Sean Christopherson
7f5b8f586c UPSTREAM: KVM: arm64: Unconditionally include generic KVM's Kconfig
Unconditionally "source" the generic KVM Kconfig instead of wrapping it
with KVM=y.  A future patch will select HAVE_KVM so that referencing
HAVE_KVM in common kernel code doesn't break, and because KVM=y and
HAVE_KVM=n is weird.  Source the generic KVM Kconfig unconditionally so
that HAVE_KVM and KVM don't end up with a circular dependency.

Note, all but one of generic KVM's "configs" are of the HAVE_XYZ nature,
and the one outlier correctly takes a dependency on CONFIG_KVM, i.e. the
generic Kconfig is intended to be included unconditionally.

No functional change intended.

Signed-off-by: Sean Christopherson <seanjc@google.com>
[maz: made NVHE_EL2_DEBUG depend on KVM]
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20210921222231.518092-2-seanjc@google.com
(cherry picked from commit c8f1e96734)
Bug: 204960018
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: I94e4a0666f5da3ff17ebfa0068eec5a9358556f3
2021-11-19 09:49:23 +00:00
Marc Zyngier
03b391fd33 UPSTREAM: KVM: arm64: Allow KVM to be disabled from the command line
Although KVM can be compiled out of the kernel, it cannot be disabled
at runtime. Allow this possibility by introducing a new mode that
will prevent KVM from initialising.

This is useful in the (limited) circumstances where you don't want
KVM to be available (what is wrong with you?), or when you want
to install another hypervisor instead (good luck with that).

Reviewed-by: David Brazdil <dbrazdil@google.com>
Acked-by: Will Deacon <will@kernel.org>
Acked-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Reviewed-by: Andrew Scull <ascull@google.com>
Link: https://lore.kernel.org/r/20211001170553.3062988-1-maz@kernel.org
(cherry picked from commit b6a68b97af)
Bug: 204960018
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: Ie796c716fc7cece906a8cded0ae4652a828988bb
2021-11-19 09:49:23 +00:00
Ricardo Koller
ed0f76e844 UPSTREAM: KVM: arm64: vgic: Drop vgic_check_ioaddr()
There are no more users of vgic_check_ioaddr(). Move its checks to
vgic_check_iorange() and then remove it.

Signed-off-by: Ricardo Koller <ricarkol@google.com>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211005011921.437353-6-ricarkol@google.com
(cherry picked from commit 96e9038969)
Bug: 204960018
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: Ib6716c451f76bd80d7596f2c9837df4f2ecfcf7a
2021-11-19 09:49:23 +00:00
Ricardo Koller
3f1fe7fc1e UPSTREAM: KVM: arm64: vgic-v3: Check ITS region is not above the VM IPA size
Verify that the ITS region does not extend beyond the VM-specified IPA
range (phys_size).

  base + size > phys_size AND base < phys_size

Add the missing check into vgic_its_set_attr() which is called when
setting the region.

Reviewed-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Ricardo Koller <ricarkol@google.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211005011921.437353-5-ricarkol@google.com
(cherry picked from commit 2ec02f6c64)
Bug: 204960018
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: I859d3e9e702b84579e67f2e0e0b8e13e0759b921
2021-11-19 09:49:23 +00:00
Ricardo Koller
b75f76a88d UPSTREAM: KVM: arm64: vgic-v2: Check cpu interface region is not above the VM IPA size
Verify that the GICv2 CPU interface does not extend beyond the
VM-specified IPA range (phys_size).

  base + size > phys_size AND base < phys_size

Add the missing check into kvm_vgic_addr() which is called when setting
the region. This patch also enables some superfluous checks for the
distributor (vgic_check_ioaddr was enough as alignment == size for the
distributors).

Reviewed-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Ricardo Koller <ricarkol@google.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211005011921.437353-4-ricarkol@google.com
(cherry picked from commit c56a87da0a)
Bug: 204960018
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: Ib462da73c1f819152ee799507f037126db02ebbe
2021-11-19 09:49:23 +00:00
Ricardo Koller
23718d50ba UPSTREAM: KVM: arm64: vgic-v3: Check redist region is not above the VM IPA size
Verify that the redistributor regions do not extend beyond the
VM-specified IPA range (phys_size). This can happen when using
KVM_VGIC_V3_ADDR_TYPE_REDIST or KVM_VGIC_V3_ADDR_TYPE_REDIST_REGIONS
with:

  base + size > phys_size AND base < phys_size

Add the missing check into vgic_v3_alloc_redist_region() which is called
when setting the regions, and into vgic_v3_check_base() which is called
when attempting the first vcpu-run. The vcpu-run check does not apply to
KVM_VGIC_V3_ADDR_TYPE_REDIST_REGIONS because the regions size is known
before the first vcpu-run. Note that using the REDIST_REGIONS API
results in a different check, which already exists, at first vcpu run:
that the number of redist regions is enough for all vcpus.

Finally, this patch also enables some extra tests in
vgic_v3_alloc_redist_region() by calculating "size" early for the legacy
redist api: like checking that the REDIST region can fit all the already
created vcpus.

Reviewed-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Ricardo Koller <ricarkol@google.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211005011921.437353-3-ricarkol@google.com
(cherry picked from commit 4612d98f58)
Bug: 204960018
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: I9c5877cb305621d206e36250aa970a55926d4b5e
2021-11-19 09:49:22 +00:00