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In order to be able to use only vma_flags_t in vm_area_desc we must adjust
shmem file setup functions to operate in terms of vma_flags_t rather than
vm_flags_t.
This patch makes this change and updates all callers to use the new
functions.
No functional changes intended.
[akpm@linux-foundation.org: comment fixes, per Baolin]
Link: https://lkml.kernel.org/r/736febd280eb484d79cef5cf55b8a6f79ad832d2.1769097829.git.lorenzo.stoakes@oracle.com
Signed-off-by: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Reviewed-by: Baolin Wang <baolin.wang@linux.alibaba.com>
Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org>
Reviewed-by: Liam R. Howlett <Liam.Howlett@oracle.com>
Cc: Barry Song <baohua@kernel.org>
Cc: David Hildenbrand <david@kernel.org>
Cc: Dev Jain <dev.jain@arm.com>
Cc: Jason Gunthorpe <jgg@nvidia.com>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Zi Yan <ziy@nvidia.com>
Cc: "Darrick J. Wong" <djwong@kernel.org>
Cc: Damien Le Moal <dlemoal@kernel.org>
Cc: Yury Norov <ynorov@nvidia.com>
Cc: Chris Mason <clm@fb.com>
Cc: Pedro Falcato <pfalcato@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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Pull OpenRISC updates from Stafford Horne:
"The main focus for this series has been to improve OpenRISC kernel
out-of-the-box support for FPGA dev boards.
- Add device tree configurations for De0 Nano single and multicore
configurations
- Fix bug in OpenRISC SMP preventing the kernel from running on FPGA
boards, due to IPIs not being unmasked on secondary CPUs in some
configurations
- Pick up a fix from Brian Masney defining the nop() macro to fix
build failures on OpenRISC for drivers using it"
* tag 'for-linus' of https://github.com/openrisc/linux:
openrisc: define arch-specific version of nop()
openrisc: dts: Add de0 nano multicore config and devicetree
openrisc: dts: Split simple smp dts to dts and dtsi
openrisc: Fix IPIs on simple multicore systems
openrisc: dts: Add de0 nano config and devicetree
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git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull non-MM updates from Andrew Morton:
- "ocfs2: give ocfs2 the ability to reclaim suballocator free bg" saves
disk space by teaching ocfs2 to reclaim suballocator block group
space (Heming Zhao)
- "Add ARRAY_END(), and use it to fix off-by-one bugs" adds the
ARRAY_END() macro and uses it in various places (Alejandro Colomar)
- "vmcoreinfo: support VMCOREINFO_BYTES larger than PAGE_SIZE" makes
the vmcore code future-safe, if VMCOREINFO_BYTES ever exceeds the
page size (Pnina Feder)
- "kallsyms: Prevent invalid access when showing module buildid" cleans
up kallsyms code related to module buildid and fixes an invalid
access crash when printing backtraces (Petr Mladek)
- "Address page fault in ima_restore_measurement_list()" fixes a
kexec-related crash that can occur when booting the second-stage
kernel on x86 (Harshit Mogalapalli)
- "kho: ABI headers and Documentation updates" updates the kexec
handover ABI documentation (Mike Rapoport)
- "Align atomic storage" adds the __aligned attribute to atomic_t and
atomic64_t definitions to get natural alignment of both types on
csky, m68k, microblaze, nios2, openrisc and sh (Finn Thain)
- "kho: clean up page initialization logic" simplifies the page
initialization logic in kho_restore_page() (Pratyush Yadav)
- "Unload linux/kernel.h" moves several things out of kernel.h and into
more appropriate places (Yury Norov)
- "don't abuse task_struct.group_leader" removes the usage of
->group_leader when it is "obviously unnecessary" (Oleg Nesterov)
- "list private v2 & luo flb" adds some infrastructure improvements to
the live update orchestrator (Pasha Tatashin)
* tag 'mm-nonmm-stable-2026-02-12-10-48' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (107 commits)
watchdog/hardlockup: simplify perf event probe and remove per-cpu dependency
procfs: fix missing RCU protection when reading real_parent in do_task_stat()
watchdog/softlockup: fix sample ring index wrap in need_counting_irqs()
kcsan, compiler_types: avoid duplicate type issues in BPF Type Format
kho: fix doc for kho_restore_pages()
tests/liveupdate: add in-kernel liveupdate test
liveupdate: luo_flb: introduce File-Lifecycle-Bound global state
liveupdate: luo_file: Use private list
list: add kunit test for private list primitives
list: add primitives for private list manipulations
delayacct: fix uapi timespec64 definition
panic: add panic_force_cpu= parameter to redirect panic to a specific CPU
netclassid: use thread_group_leader(p) in update_classid_task()
RDMA/umem: don't abuse current->group_leader
drm/pan*: don't abuse current->group_leader
drm/amd: kill the outdated "Only the pthreads threading model is supported" checks
drm/amdgpu: don't abuse current->group_leader
android/binder: use same_thread_group(proc->tsk, current) in binder_mmap()
android/binder: don't abuse current->group_leader
kho: skip memoryless NUMA nodes when reserving scratch areas
...
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git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull MM updates from Andrew Morton:
- "powerpc/64s: do not re-activate batched TLB flush" makes
arch_{enter|leave}_lazy_mmu_mode() nest properly (Alexander Gordeev)
It adds a generic enter/leave layer and switches architectures to use
it. Various hacks were removed in the process.
- "zram: introduce compressed data writeback" implements data
compression for zram writeback (Richard Chang and Sergey Senozhatsky)
- "mm: folio_zero_user: clear page ranges" adds clearing of contiguous
page ranges for hugepages. Large improvements during demand faulting
are demonstrated (David Hildenbrand)
- "memcg cleanups" tidies up some memcg code (Chen Ridong)
- "mm/damon: introduce {,max_}nr_snapshots and tracepoint for damos
stats" improves DAMOS stat's provided information, deterministic
control, and readability (SeongJae Park)
- "selftests/mm: hugetlb cgroup charging: robustness fixes" fixes a few
issues in the hugetlb cgroup charging selftests (Li Wang)
- "Fix va_high_addr_switch.sh test failure - again" addresses several
issues in the va_high_addr_switch test (Chunyu Hu)
- "mm/damon/tests/core-kunit: extend existing test scenarios" improves
the KUnit test coverage for DAMON (Shu Anzai)
- "mm/khugepaged: fix dirty page handling for MADV_COLLAPSE" fixes a
glitch in khugepaged which was causing madvise(MADV_COLLAPSE) to
transiently return -EAGAIN (Shivank Garg)
- "arch, mm: consolidate hugetlb early reservation" reworks and
consolidates a pile of straggly code related to reservation of
hugetlb memory from bootmem and creation of CMA areas for hugetlb
(Mike Rapoport)
- "mm: clean up anon_vma implementation" cleans up the anon_vma
implementation in various ways (Lorenzo Stoakes)
- "tweaks for __alloc_pages_slowpath()" does a little streamlining of
the page allocator's slowpath code (Vlastimil Babka)
- "memcg: separate private and public ID namespaces" cleans up the
memcg ID code and prevents the internal-only private IDs from being
exposed to userspace (Shakeel Butt)
- "mm: hugetlb: allocate frozen gigantic folio" cleans up the
allocation of frozen folios and avoids some atomic refcount
operations (Kefeng Wang)
- "mm/damon: advance DAMOS-based LRU sorting" improves DAMOS's movement
of memory betewwn the active and inactive LRUs and adds auto-tuning
of the ratio-based quotas and of monitoring intervals (SeongJae Park)
- "Support page table check on PowerPC" makes
CONFIG_PAGE_TABLE_CHECK_ENFORCED work on powerpc (Andrew Donnellan)
- "nodemask: align nodes_and{,not} with underlying bitmap ops" makes
nodes_and() and nodes_andnot() propagate the return values from the
underlying bit operations, enabling some cleanup in calling code
(Yury Norov)
- "mm/damon: hide kdamond and kdamond_lock from API callers" cleans up
some DAMON internal interfaces (SeongJae Park)
- "mm/khugepaged: cleanups and scan limit fix" does some cleanup work
in khupaged and fixes a scan limit accounting issue (Shivank Garg)
- "mm: balloon infrastructure cleanups" goes to town on the balloon
infrastructure and its page migration function. Mainly cleanups, also
some locking simplification (David Hildenbrand)
- "mm/vmscan: add tracepoint and reason for kswapd_failures reset" adds
additional tracepoints to the page reclaim code (Jiayuan Chen)
- "Replace wq users and add WQ_PERCPU to alloc_workqueue() users" is
part of Marco's kernel-wide migration from the legacy workqueue APIs
over to the preferred unbound workqueues (Marco Crivellari)
- "Various mm kselftests improvements/fixes" provides various unrelated
improvements/fixes for the mm kselftests (Kevin Brodsky)
- "mm: accelerate gigantic folio allocation" greatly speeds up gigantic
folio allocation, mainly by avoiding unnecessary work in
pfn_range_valid_contig() (Kefeng Wang)
- "selftests/damon: improve leak detection and wss estimation
reliability" improves the reliability of two of the DAMON selftests
(SeongJae Park)
- "mm/damon: cleanup kdamond, damon_call(), damos filter and
DAMON_MIN_REGION" does some cleanup work in the core DAMON code
(SeongJae Park)
- "Docs/mm/damon: update intro, modules, maintainer profile, and misc"
performs maintenance work on the DAMON documentation (SeongJae Park)
- "mm: add and use vma_assert_stabilised() helper" refactors and cleans
up the core VMA code. The main aim here is to be able to use the mmap
write lock's lockdep state to perform various assertions regarding
the locking which the VMA code requires (Lorenzo Stoakes)
- "mm, swap: swap table phase II: unify swapin use" removes some old
swap code (swap cache bypassing and swap synchronization) which
wasn't working very well. Various other cleanups and simplifications
were made. The end result is a 20% speedup in one benchmark (Kairui
Song)
- "enable PT_RECLAIM on more 64-bit architectures" makes PT_RECLAIM
available on 64-bit alpha, loongarch, mips, parisc, and um. Various
cleanups were performed along the way (Qi Zheng)
* tag 'mm-stable-2026-02-11-19-22' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (325 commits)
mm/memory: handle non-split locks correctly in zap_empty_pte_table()
mm: move pte table reclaim code to memory.c
mm: make PT_RECLAIM depends on MMU_GATHER_RCU_TABLE_FREE
mm: convert __HAVE_ARCH_TLB_REMOVE_TABLE to CONFIG_HAVE_ARCH_TLB_REMOVE_TABLE config
um: mm: enable MMU_GATHER_RCU_TABLE_FREE
parisc: mm: enable MMU_GATHER_RCU_TABLE_FREE
mips: mm: enable MMU_GATHER_RCU_TABLE_FREE
LoongArch: mm: enable MMU_GATHER_RCU_TABLE_FREE
alpha: mm: enable MMU_GATHER_RCU_TABLE_FREE
mm: change mm/pt_reclaim.c to use asm/tlb.h instead of asm-generic/tlb.h
mm/damon/stat: remove __read_mostly from memory_idle_ms_percentiles
zsmalloc: make common caches global
mm: add SPDX id lines to some mm source files
mm/zswap: use %pe to print error pointers
mm/vmscan: use %pe to print error pointers
mm/readahead: fix typo in comment
mm: khugepaged: fix NR_FILE_PAGES and NR_SHMEM in collapse_file()
mm: refactor vma_map_pages to use vm_insert_pages
mm/damon: unify address range representation with damon_addr_range
mm/cma: replace snprintf with strscpy in cma_new_area
...
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git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
Pull networking updates from Paolo Abeni:
"Core & protocols:
- A significant effort all around the stack to guide the compiler to
make the right choice when inlining code, to avoid unneeded calls
for small helper and stack canary overhead in the fast-path.
This generates better and faster code with very small or no text
size increases, as in many cases the call generated more code than
the actual inlined helper.
- Extend AccECN implementation so that is now functionally complete,
also allow the user-space enabling it on a per network namespace
basis.
- Add support for memory providers with large (above 4K) rx buffer.
Paired with hw-gro, larger rx buffer sizes reduce the number of
buffers traversing the stack, dincreasing single stream CPU usage
by up to ~30%.
- Do not add HBH header to Big TCP GSO packets. This simplifies the
RX path, the TX path and the NIC drivers, and is possible because
user-space taps can now interpret correctly such packets without
the HBH hint.
- Allow IPv6 routes to be configured with a gateway address that is
resolved out of a different interface than the one specified,
aligning IPv6 to IPv4 behavior.
- Multi-queue aware sch_cake. This makes it possible to scale the
rate shaper of sch_cake across multiple CPUs, while still enforcing
a single global rate on the interface.
- Add support for the nbcon (new buffer console) infrastructure to
netconsole, enabling lock-free, priority-based console operations
that are safer in crash scenarios.
- Improve the TCP ipv6 output path to cache the flow information,
saving cpu cycles, reducing cache line misses and stack use.
- Improve netfilter packet tracker to resolve clashes for most
protocols, avoiding unneeded drops on rare occasions.
- Add IP6IP6 tunneling acceleration to the flowtable infrastructure.
- Reduce tcp socket size by one cache line.
- Notify neighbour changes atomically, avoiding inconsistencies
between the notification sequence and the actual states sequence.
- Add vsock namespace support, allowing complete isolation of vsocks
across different network namespaces.
- Improve xsk generic performances with cache-alignment-oriented
optimizations.
- Support netconsole automatic target recovery, allowing netconsole
to reestablish targets when underlying low-level interface comes
back online.
Driver API:
- Support for switching the working mode (automatic vs manual) of a
DPLL device via netlink.
- Introduce PHY ports representation to expose multiple front-facing
media ports over a single MAC.
- Introduce "rx-polarity" and "tx-polarity" device tree properties,
to generalize polarity inversion requirements for differential
signaling.
- Add helper to create, prepare and enable managed clocks.
Device drivers:
- Add Huawei hinic3 PF etherner driver.
- Add DWMAC glue driver for Motorcomm YT6801 PCIe ethernet
controller.
- Add ethernet driver for MaxLinear MxL862xx switches
- Remove parallel-port Ethernet driver.
- Convert existing driver timestamp configuration reporting to
hwtstamp_get and remove legacy ioctl().
- Convert existing drivers to .get_rx_ring_count(), simplifing the RX
ring count retrieval. Also remove the legacy fallback path.
- Ethernet high-speed NICs:
- Broadcom (bnxt, bng):
- bnxt: add FW interface update to support FEC stats histogram
and NVRAM defragmentation
- bng: add TSO and H/W GRO support
- nVidia/Mellanox (mlx5):
- improve latency of channel restart operations, reducing the
used H/W resources
- add TSO support for UDP over GRE over VLAN
- add flow counters support for hardware steering (HWS) rules
- use a static memory area to store headers for H/W GRO,
leading to 12% RX tput improvement
- Intel (100G, ice, idpf):
- ice: reorganizes layout of Tx and Rx rings for cacheline
locality and utilizes __cacheline_group* macros on the new
layouts
- ice: introduces Synchronous Ethernet (SyncE) support
- Meta (fbnic):
- adds debugfs for firmware mailbox and tx/rx rings vectors
- Ethernet virtual:
- geneve: introduce GRO/GSO support for double UDP encapsulation
- Ethernet NICs consumer, and embedded:
- Synopsys (stmmac):
- some code refactoring and cleanups
- RealTek (r8169):
- add support for RTL8127ATF (10G Fiber SFP)
- add dash and LTR support
- Airoha:
- AN8811HB 2.5 Gbps phy support
- Freescale (fec):
- add XDP zero-copy support
- Thunderbolt:
- add get link setting support to allow bonding
- Renesas:
- add support for RZ/G3L GBETH SoC
- Ethernet switches:
- Maxlinear:
- support R(G)MII slow rate configuration
- add support for Intel GSW150
- Motorcomm (yt921x):
- add DCB/QoS support
- TI:
- icssm-prueth: support bridging (STP/RSTP) via the switchdev
framework
- Ethernet PHYs:
- Realtek:
- enable SGMII and 2500Base-X in-band auto-negotiation
- simplify and reunify C22/C45 drivers
- Micrel: convert bindings to DT schema
- CAN:
- move skb headroom content into skb extensions, making CAN
metadata access more robust
- CAN drivers:
- rcar_canfd:
- add support for FD-only mode
- add support for the RZ/T2H SoC
- sja1000: cleanup the CAN state handling
- WiFi:
- implement EPPKE/802.1X over auth frames support
- split up drop reasons better, removing generic RX_DROP
- additional FTM capabilities: 6 GHz support, supported number of
spatial streams and supported number of LTF repetitions
- better mac80211 iterators to enumerate resources
- initial UHR (Wi-Fi 8) support for cfg80211/mac80211
- WiFi drivers:
- Qualcomm/Atheros:
- ath11k: support for Channel Frequency Response measurement
- ath12k: a significant driver refactor to support multi-wiphy
devices and and pave the way for future device support in the
same driver (rather than splitting to ath13k)
- ath12k: support for the QCC2072 chipset
- Intel:
- iwlwifi: partial Neighbor Awareness Networking (NAN) support
- iwlwifi: initial support for U-NII-9 and IEEE 802.11bn
- RealTek (rtw89):
- preparations for RTL8922DE support
- Bluetooth:
- implement setsockopt(BT_PHY) to set the connection packet type/PHY
- set link_policy on incoming ACL connections
- Bluetooth drivers:
- btusb: add support for MediaTek7920, Realtek RTL8761BU and 8851BE
- btqca: add WCN6855 firmware priority selection feature"
* tag 'net-next-7.0' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1254 commits)
bnge/bng_re: Add a new HSI
net: macb: Fix tx/rx malfunction after phy link down and up
af_unix: Fix memleak of newsk in unix_stream_connect().
net: ti: icssg-prueth: Add optional dependency on HSR
net: dsa: add basic initial driver for MxL862xx switches
net: mdio: add unlocked mdiodev C45 bus accessors
net: dsa: add tag format for MxL862xx switches
dt-bindings: net: dsa: add MaxLinear MxL862xx
selftests: drivers: net: hw: Modify toeplitz.c to poll for packets
octeontx2-pf: Unregister devlink on probe failure
net: renesas: rswitch: fix forwarding offload statemachine
ionic: Rate limit unknown xcvr type messages
tcp: inet6_csk_xmit() optimization
tcp: populate inet->cork.fl.u.ip6 in tcp_v6_syn_recv_sock()
tcp: populate inet->cork.fl.u.ip6 in tcp_v6_connect()
ipv6: inet6_csk_xmit() and inet6_csk_update_pmtu() use inet->cork.fl.u.ip6
ipv6: use inet->cork.fl.u.ip6 and np->final in ip6_datagram_dst_update()
ipv6: use np->final in inet6_sk_rebuild_header()
ipv6: add daddr/final storage in struct ipv6_pinfo
net: stmmac: qcom-ethqos: fix qcom_ethqos_serdes_powerup()
...
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git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux
Pull devicetree updates from Rob Herring:
"DT core:
- Sync dtc/libfdt with upstream v1.7.2-62-ga26ef6400bd8
- Add a for_each_compatible_node_scoped() loop and convert users in
cpufreq, dmaengine, clk, cdx, powerpc and Arm
- Simplify of/platform.c with scoped loop helpers
- Add fw_devlink tracking for "mmc-pwrseq"
- Optimize fw_devlink callback code size for pinctrl-N properties
- Replace strcmp_suffix() with strends()
DT bindings:
- Support building single binding targets
- Convert google,goldfish-fb, cznic,turris-mox-rwtm, ti,prm-inst
- Add bindings for Freescale AVIC, Realtek RTD1xxx system
controllers, Microchip 25AA010A EEPROM, OnSemi FIN3385, IEI
WT61P803 PUZZLE, Delta Electronics DPS-800-AB power supply,
Infineon IR35221 Digital Multi-phase Controller, Infineon PXE1610
Digital Dual Output 6+1 VR12.5 & VR13 CPU Controller,
socionext,uniphier-smpctrl, and xlnx,zynqmp-firmware
- Lots of trivial binding fixes to address warnings in DTS files.
These are mostly for arm64 platforms which is getting closer to be
warning free. Some public shaming has helped.
- Fix I2C bus node names in examples
- Drop obsolete brcm,vulcan-soc binding
- Drop unreferenced binding headers"
* tag 'devicetree-for-7.0' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (60 commits)
dt-bindings: interrupt-controller: Add compatiblie string fsl,imx(1|25|27|31|35)-avic
dt-bindings: soc: imx: add fsl,aips and fsl,emi compatible strings
dt-bindings: display: bridge: lt8912b: Drop reset gpio requirement
dt-bindings: firmware: fsl,scu: Mark multi-channel MU layouts as deprecated
cpufreq: s5pv210: Simplify with scoped for each OF child loop
dmaengine: fsl_raid: Simplify with scoped for each OF child loop
clk: imx: imx31: Simplify with scoped for each OF child loop
clk: imx: imx27: Simplify with scoped for each OF child loop
cdx: Use mutex guard to simplify error handling
cdx: Simplify with scoped for each OF child loop
powerpc/wii: Simplify with scoped for each OF child loop
powerpc/fsp2: Simplify with scoped for each OF child loop
ARM: exynos: Simplify with scoped for each OF child loop
ARM: at91: Simplify with scoped for each OF child loop
of: Add for_each_compatible_node_scoped() helper
dt-bindings: Fix emails with spaces or missing brackets
scripts/dtc: Update to upstream version v1.7.2-62-ga26ef6400bd8
dt-bindings: crypto: inside-secure,safexcel: Mandate only ring IRQs
dt-bindings: crypto: inside-secure,safexcel: Add SoC compatibles
of: reserved_mem: Fix placement of __free() annotation
...
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git://git.kernel.org/pub/scm/linux/kernel/git/kbuild/linux
Pull Kbuild/Kconfig updates from Nathan Chancellor:
"Kbuild:
- Drop '*_probe' pattern from modpost section check allowlist, which
hid legitimate warnings (Johan Hovold)
- Disable -Wtype-limits altogether, instead of enabling at W=2
(Vincent Mailhol)
- Improve UAPI testing to skip testing headers that require a libc
when CONFIG_CC_CAN_LINK is not set, opening up testing of headers
with no libc dependencies to more environments (Thomas Weißschuh)
- Update gendwarfksyms documentation with required dependencies
(Jihan LIN)
- Reject invalid LLVM= values to avoid unintentionally falling back
to system toolchain (Thomas Weißschuh)
- Add a script to help run the kernel build process in a container
for consistent environments and testing (Guillaume Tucker)
- Simplify kallsyms by getting rid of the relative base (Ard
Biesheuvel)
- Performance and usability improvements to scripts/make_fit.py
(Simon Glass)
- Minor various clean ups and fixes
Kconfig:
- Move XPM icons to individual files, clearing up GTK deprecation
warnings (Rostislav Krasny)
- Support
depends on FOO if BAR
as syntactic sugar for
depends on FOO || !BAR
(Nicolas Pitre, Graham Roff)
- Refactor merge_config.sh to use awk over shell/sed/grep,
dramatically speeding up processing large number of config
fragments (Anders Roxell, Mikko Rapeli)"
* tag 'kbuild-7.0-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kbuild/linux: (39 commits)
kbuild: remove dependency of run-command on config
scripts/make_fit: Compress dtbs in parallel
scripts/make_fit: Support a few more parallel compressors
kbuild: Support a FIT_EXTRA_ARGS environment variable
scripts/make_fit: Move dtb processing into a function
scripts/make_fit: Support an initial ramdisk
scripts/make_fit: Speed up operation
rust: kconfig: Don't require RUST_IS_AVAILABLE for rustc-option
MAINTAINERS: Add scripts/install.sh into Kbuild entry
modpost: Amend ppc64 save/restfpr symnames for -Os build
MIPS: tools: relocs: Ship a definition of R_MIPS_PC32
streamline_config.pl: remove superfluous exclamation mark
kbuild: dummy-tools: Add python3
scripts: kconfig: merge_config.sh: warn on duplicate input files
scripts: kconfig: merge_config.sh: use awk in checks too
scripts: kconfig: merge_config.sh: refactor from shell/sed/grep to awk
kallsyms: Get rid of kallsyms relative base
mips: Add support for PC32 relocations in vmlinux
Documentation: dev-tools: add container.rst page
scripts: add tool to run containerized builds
...
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https://git.kernel.org/pub/scm/linux/kernel/git/kvms390/linux into HEAD
- gmap rewrite: completely new memory management for kvm/s390
- vSIE improvement
- maintainership change for s390 vfio-pci
- small quality of life improvement for protected guests
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KVM mediated PMU support for 6.20
Add support for mediated PMUs, where KVM gives the guest full ownership of PMU
hardware (contexted switched around the fastpath run loop) and allows direct
access to data MSRs and PMCs (restricted by the vPMU model), but intercepts
access to control registers, e.g. to enforce event filtering and to prevent the
guest from profiling sensitive host state.
To keep overall complexity reasonable, mediated PMU usage is all or nothing
for a given instance of KVM (controlled via module param). The Mediated PMU
is disabled default, partly to maintain backwards compatilibity for existing
setup, partly because there are tradeoffs when running with a mediated PMU that
may be non-starters for some use cases, e.g. the host loses the ability to
profile guests with mediated PMUs, the fastpath run loop is also a blind spot,
entry/exit transitions are more expensive, etc.
Versus the emulated PMU, where KVM is "just another perf user", the mediated
PMU delivers more accurate profiling and monitoring (no risk of contention and
thus dropped events), with significantly less overhead (fewer exits and faster
emulation/programming of event selectors) E.g. when running Specint-2017 on
a single-socket Sapphire Rapids with 56 cores and no-SMT, and using perf from
within the guest:
Perf command:
a. basic-sampling: perf record -F 1000 -e 6-instructions -a --overwrite
b. multiplex-sampling: perf record -F 1000 -e 10-instructions -a --overwrite
Guest performance overhead:
---------------------------------------------------------------------------
| Test case | emulated vPMU | all passthrough | passthrough with |
| | | | event filters |
---------------------------------------------------------------------------
| basic-sampling | 33.62% | 4.24% | 6.21% |
---------------------------------------------------------------------------
| multiplex-sampling | 79.32% | 7.34% | 10.45% |
---------------------------------------------------------------------------
|
|
KVM x86 APIC-ish changes for 6.20
- Fix a benign bug where KVM could use the wrong memslots (ignored SMM) when
creating a vCPU-specific mapping of guest memory.
- Clean up KVM's handling of marking mapped vCPU pages dirty.
- Drop a pile of *ancient* sanity checks hidden behind in KVM's unused
ASSERT() macro, most of which could be trivially triggered by the guest
and/or user, and all of which were useless.
- Fold "struct dest_map" into its sole user, "struct rtc_status", to make it
more obvious what the weird parameter is used for, and to allow burying the
RTC shenanigans behind CONFIG_KVM_IOAPIC=y.
- Bury all of ioapic.h and KVM_IRQCHIP_KERNEL behind CONFIG_KVM_IOAPIC=y.
- Add a regression test for recent APICv update fixes.
- Rework KVM's handling of VMCS updates while L2 is active to temporarily
switch to vmcs01 instead of deferring the update until the next nested
VM-Exit. The deferred updates approach directly contributed to several
bugs, was proving to be a maintenance burden due to the difficulty in
auditing the correctness of deferred updates, and was polluting
"struct nested_vmx" with a growing pile of booleans.
- Handle "hardware APIC ISR", a.k.a. SVI, updates in kvm_apic_update_apicv()
to consolidate the updates, and to co-locate SVI updates with the updates
for KVM's own cache of ISR information.
- Drop a dead function declaration.
|
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KVM guest_memfd changes for 6.20
- Remove kvm_gmem_populate()'s preparation tracking and half-baked hugepage
handling, and instead rely on SNP (the only user of the tracking) to do its
own tracking via the RMP.
- Retroactively document and enforce (for SNP) that KVM_SEV_SNP_LAUNCH_UPDATE
and KVM_TDX_INIT_MEM_REGION require the source page to be 4KiB aligned, to
avoid non-trivial complexity for a non-existent usecase (and because
in-place conversion simply can't support unaligned sources).
- When populating guest_memfd memory, GUP the source page in common code and
pass the refcounted page to the vendor callback, instead of letting vendor
code do the heavy lifting. Doing so avoids a looming deadlock bug with
in-place due an AB-BA conflict betwee mmap_lock and guest_memfd's filemap
invalidate lock.
|
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KVM/riscv changes for 6.20
- Fixes for issues discoverd by KVM API fuzzing in
kvm_riscv_aia_imsic_has_attr(), kvm_riscv_aia_imsic_rw_attr(),
and kvm_riscv_vcpu_aia_imsic_update()
- Allow Zalasr, Zilsd and Zclsd extensions for Guest/VM
- Add riscv vm satp modes in KVM selftests
- Transparent huge page support for G-stage
- Adjust the number of available guest irq files based on
MMIO register sizes in DeviceTree or ACPI
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git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc updates for 7.0
- Implement masked user access
- Add bpf support for internal only per-CPU instructions and inline the
bpf_get_smp_processor_id() and bpf_get_current_task() functions
- Fix pSeries MSI-X allocation failure when quota is exceeded
- Fix recursive pci_lock_rescan_remove locking in EEH event handling
- Support tailcalls with subprogs & BPF exceptions on 64bit
- Extend "trusted" keys to support the PowerVM Key Wrapping Module
(PKWM)
Thanks to Abhishek Dubey, Christophe Leroy, Gaurav Batra, Guangshuo Li,
Jarkko Sakkinen, Mahesh Salgaonkar, Mimi Zohar, Miquel Sabaté Solà, Nam
Cao, Narayana Murty N, Nayna Jain, Nilay Shroff, Puranjay Mohan, Saket
Kumar Bhaskar, Sourabh Jain, Srish Srinivasan, and Venkat Rao Bagalkote.
* tag 'powerpc-7.0-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (27 commits)
powerpc/pseries: plpks: export plpks_wrapping_is_supported
docs: trusted-encryped: add PKWM as a new trust source
keys/trusted_keys: establish PKWM as a trusted source
pseries/plpks: add HCALLs for PowerVM Key Wrapping Module
pseries/plpks: expose PowerVM wrapping features via the sysfs
powerpc/pseries: move the PLPKS config inside its own sysfs directory
pseries/plpks: fix kernel-doc comment inconsistencies
powerpc/smp: Add check for kcalloc() failure in parse_thread_groups()
powerpc: kgdb: Remove OUTBUFMAX constant
powerpc64/bpf: Additional NVR handling for bpf_throw
powerpc64/bpf: Support exceptions
powerpc64/bpf: Add arch_bpf_stack_walk() for BPF JIT
powerpc64/bpf: Avoid tailcall restore from trampoline
powerpc64/bpf: Support tailcalls with subprogs
powerpc64/bpf: Moving tail_call_cnt to bottom of frame
powerpc/eeh: fix recursive pci_lock_rescan_remove locking in EEH event handling
powerpc/pseries: Fix MSI-X allocation failure when quota is exceeded
powerpc/iommu: bypass DMA APIs for coherent allocations for pre-mapped memory
powerpc64/bpf: Inline bpf_get_smp_processor_id() and bpf_get_current_task/_btf()
powerpc64/bpf: Support internal-only MOV instruction to resolve per-CPU addrs
...
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git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux
Pull parisc updates from Helge Deller:
- Fix device reference leak in error path
- Check if system provides a 64-bit free running platform counter
- Minor fixes in debug code
* tag 'parisc-for-7.0-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux:
parisc: lba_pci: Add debug code to show IO and PA ranges
parisc: Detect 64-bit free running platform counter
parisc: Fix minor printk issues in iosapic debug code
parisc: Enhance debug code for PAT firmware
parisc: Add PDC PAT call to get free running 64-bit counter
parisc: Fix module path output in qemu tables
parisc: Export model name for MPE/ix
parisc: Prevent interrupts during reboot
parisc: Print hardware IDs as 4 digit hex strings
parisc: kernel: replace kfree() with put_device() in create_tree_node()
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Pull SoC devicetree updates from Arnd Bergmann:
"There are a handful of new SoCs this time, all of these are more or
less related to chips in a wider family:
- SpacemiT Key Stone K3 is an 8-core risc-v chip, and the first
widely available RVA23 implementation. Note that this is entirely
unrelated with the similarly named Texas Instruments K3 chip family
that follwed the TI Keystone2 SoC.
- The Realtek Kent family of SoCs contains three chip models
rtd1501s, rtd1861b and rtd1920s, and is related to their earlier
Set-top-box and NAS products such as rtd1619, but is built on newer
Arm Cortex-A78 cores.
- The Qualcomm Milos family includes the Snapdragon 7s Gen 3 (SM7635)
mobile phone SoC built around Armv9 Kryo cores of the Arm
Cortex-A720 generation. This one is used in the Fairphone Gen 6
- Qualcomm Kaanapali is a new SoC based around eight high performance
Oryon CPU cores
- NXP i.MX8QP and i.MX952 are both feature reduced versions of chips
we already support, i.e. the i.MX8QM and i.MX952, with fewer CPU
cores and I/O interfaces.
As part of a cleanup, a number of SoC specific devicetree files got
removed because they did not have a single board using the .dtsi files
and they were never compile tested as a result: Samsung s3c6400, ST
spear320s, ST stm32mp21xc/stm32mp23xc/stm32mp25xc, Renesas
r8a779m0/r8a779m2/r8a779m4/r8a779m6/r8a779m7/r8a779m8/r8a779mb/
r9a07g044c1/r9a07g044l1/r9a07g054l1/r9a09g047e37, and TI
am3703/am3715. All of these could be restored easily if a new board
gets merged.
Broadcom/Cavium/Marvell ThunderX2 gets removed along with its only
machine, as all remaining users are assumed to be using ACPI based
firmware.
A relatively small number of 43 boards get added this time, and almost
all of them for arm64. Aside from the reference boards for the newly
added SoCs, this includes:
- Three server boards use 32-bit ASpeed BMCs
- One more reference board for 32-bit Microchip LAN9668
- 64-bit Arm single-board computers based on Amlogic s905y4, CIX
sky1, NXP ls1028a/imx8mn/imx8mp/imx91/imx93/imx95, Qualcomm
qcs6490/qrb2210 and Rockchip rk3568/rk3588s
- Carrier board for SOMs using Intel agilex5, Marvell Armada 7020,
NXP iMX8QP, Mediatek mt8370/mt8390 and rockchip rk3588
- Two mobile phones using Snapdragon 845
- A gaming device and a NAS box, both based on Rockchips rk356x
On top of the newly added boards and SoCs, there is a lot of
background activity going into cleanups, in particular towards getting
a warning-free dtc build, and the usual work on adding support for
more hardware on the previously added machines"
* tag 'soc-dt-7.0' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (757 commits)
dt-bindings: intel: Add Agilex eMMC support
arm64: dts: socfpga: agilex: add emmc support
arm64: dts: intel: agilex5: Add simple-bus node on top of dma controller node
ARM: dts: socfpga: fix dtbs_check warning for fpga-region
ARM: dts: socfpga: add #address-cells and #size-cells for sram node
dt-bindings: altera: document syscon as fallback for sys-mgr
arm64: dts: altera: Use lowercase hex
dt-bindings: arm: altera: combine Intel's SoCFPGA into altera.yaml
arm64: dts: socfpga: agilex5: Add IOMMUS property for ethernet nodes
arm64: dts: socfpga: agilex5: add support for modular board
dt-bindings: intel: Add Agilex5 SoCFPGA modular board
arm64: dts: socfpga: agilex5: Add dma-coherent property
arm64: dts: realtek: Add Kent SoC and EVB device trees
dt-bindings: arm: realtek: Add Kent Soc family compatibles
ARM: dts: samsung: Drop s3c6400.dtsi
ARM: dts: nuvoton: Minor whitespace cleanup
MAINTAINERS: Add Falcon DB
arm64: dts: a7k: add COM Express boards
ARM: dts: microchip: Drop usb_a9g20-dab-mmx.dtsi
arm64: dts: rockchip: Fix rk3588 PCIe range mappings
...
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Pull arm platform SoC code updates from Arnd Bergmann:
"These are mainly code cleanups, dropping some unneeded code, plus a
reference counting leak fix"
* tag 'soc-arm-7.0' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc:
ARM: at91: remove unnecessary of_platform_default_populate calls
ARM: at91: Move PM init functions to .init_late hook
ARM: omap1: drop unused Kconfig symbol
ARM: omap2: Fix reference count leaks in omap_control_init()
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git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull SoC defconfig updates from Arnd Bergmann:
"These are the usual updates, enabling mode newly merged device drivers
for various Arm and RISC-V based platforms in the defconfig files.
The Renesas and NXP defconfig files also get a refresh for modified
Kconfig options"
* tag 'soc-defconfig-7.0' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc:
riscv: defconfig: spacemit: k3: enable clock support
ARM: defconfig: turn off CONFIG_EXPERT
ARM: defconfig: move entries
arm64: defconfig: Enable configurations for Kontron SMARC-sAM67
ARM: imx_v4_v5_defconfig: update for v6.19-rc1
arm64: defconfig: Enable Apple Silicon drivers
arm64: select APPLE_PMGR_PWRSTATE for ARCH_APPLE
arm64: defconfig: Enable Mediatek HDMIv2 driver
ARM: shmobile: defconfig: Refresh for v6.19-rc1
arm64: defconfig: Enable PCIe for the Renesas RZ/G3S SoC
arm64: defconfig: Enable RZ/G3E USB3 PHY driver
arm64: defconfig: Enable EC drivers for Qualcomm-based laptops
arm64: defconfig: Enable options for Qualcomm Milos SoC
ARM: imx_v6_v7_defconfig: enable EPD regulator needed for Kobo Clara 2e
ARM: imx_v6_v7_defconfig: Configure CONFIG_SND_SOC_FSL_ASOC_CARD as module
ARM: multi_v7_defconfig: enable DA9052 and MC13XXX
arm64: defconfig: enable clocks, interconnect and pinctrl for Qualcomm Kaanapali
arm64: defconfig: Drop duplicate CONFIG_OMAP_USB2 entry
arm64: defconfig: Enable missing AMD/Xilinx drivers
|
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git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic
Pull asm-generic header updates from Arnd Bergmann:
"A series from Thomas Weißschuh cleans up the UAPI header files to no
longer contain any references to Kconfig symbols, as these make no
sense in userspace.
The build-time check for these was originally added by Sam Ravnborg in
linux-2.6.28, and a later version started warning for all newly added
CONFIG_* checks here but kept a list of known exceptions. With the
last exceptions gone from that list, the warning is now unconditional
in 'make headers_install'.
John Garry contributed a cleanup of cpumask_of_node()"
* tag 'asm-generic-7.0' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic:
scripts: headers_install.sh: Remove config leak ignore machinery
x86/uapi: Stop leaking kconfig references to userspace
nios2: uapi: Remove custom asm/swab.h from UAPI
ARM: uapi: Drop PSR_ENDSTATE
ARC: Always use SWAPE instructions for __arch_swab32()
include/asm-generic/topology.h: Remove unused definition of cpumask_of_node()
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Commit 93d73005bff4 ("x86/entry/vdso: Rename vdso_image_* to
vdso*_image") updated the vdso .gitignore file with the new filenames,
which is certainly not incorrect.
However, while adding new generated names is obviously the right thing
to do, you should *not* immediately remove the old filenames from the
.gitignore file when things move around or get renamed, because people
still have those old generated files in their build trees - and they
haven't suddenly become valid files to commit to the repository just
because they were moved or renamed.
While it's mostly just a slight visual nuisance for 'git status' that
can be fixed up with a clean build tree, it can become more serious than
that: see for example commit 04a3389b3535 ("Remove stale generated
'genheaders' file").
That commit removed up a stale generated file that had been carelessly
committed by a kernel developer because it wasn't properly ignored any
more and thus showed up as a new file in their tree.
Fixes: 93d73005bff4 ("x86/entry/vdso: Rename vdso_image_* to vdso*_image")
Cc: Peter Anvin <hpa@zytor.com>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull misc x86 updates from Dave Hansen:
"The usual smattering of x86/misc changes.
The IPv6 patch in here surprised me in a couple of ways. First, the
function it inlines is able to eat a lot more CPU time than I would
have expected. Second, the inlining does not seem to bloat the kernel,
at least in the configs folks have tested.
- Inline x86-specific IPv6 checksum helper
- Update IOMMU docs to use stable identifiers
- Print unhashed pointers on fatal stack overflows"
* tag 'x86_misc_for_7.0-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/traps: Print unhashed pointers on stack overflow
Documentation/x86: Update IOMMU spec references to use stable identifiers
x86/lib: Inline csum_ipv6_magic()
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 entry code updates from Dave Hansen:
"This is entirely composed of a set of long overdue VDSO cleanups. They
makes the VDSO build much more logical and zap quite a bit of old
cruft.
It also results in a coveted net-code-removal diffstat"
* tag 'x86_entry_for_7.0-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/entry/vdso: Add vdso2c to .gitignore
x86/entry/vdso32: Omit '.cfi_offset eflags' for LLVM < 16
MAINTAINERS: Adjust vdso file entry in INTEL SGX
x86/entry/vdso/selftest: Update location of vgetrandom-chacha.S
x86/entry/vdso: Fix filtering of vdso compiler flags
x86/entry/vdso: Update the object paths for "make vdso_install"
x86/entry/vdso32: When using int $0x80, use it directly
x86/cpufeature: Replace X86_FEATURE_SYSENTER32 with X86_FEATURE_SYSFAST32
x86/vdso: Abstract out vdso system call internals
x86/entry/vdso: Include GNU_PROPERTY and GNU_STACK PHDRs
x86/entry/vdso32: Remove open-coded DWARF in sigreturn.S
x86/entry/vdso32: Remove SYSCALL_ENTER_KERNEL macro in sigreturn.S
x86/entry/vdso32: Don't rely on int80_landing_pad for adjusting ip
x86/entry/vdso: Refactor the vdso build
x86/entry/vdso: Move vdso2c to arch/x86/tools
x86/entry/vdso: Rename vdso_image_* to vdso*_image
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|
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 SEV updates from Borislav Petkov:
- Make the SEV internal header really internal and carve out the
SVSM-specific code into a separate compilation unit, along with other
cleanups and fixups
[ TLA translation service: 'SEV' is AMD's 'Secure Encrypted
Virtualization' and SVSM is an ETLA ('Enhanced TLA') for 'Secure
VM Service Module'.
Some of us have trouble keeping track of this all and need all the
help we can get ]
* tag 'x86_sev_for_v7.0_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/sev: Don't emit BSS_DECRYPTED section unless it is in use
x86/sev: Use kfree_sensitive() when freeing a SNP message descriptor
x86/sev: Rename sev_es_ghcb_handle_msr() to __vc_handle_msr()
x86/sev: Carve out the SVSM code into a separate compilation unit
x86/sev: Add internal header guards
x86/sev: Move the internal header
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|
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 paravirt updates from Borislav Petkov:
- A nice cleanup to the paravirt code containing a unification of the
paravirt clock interface, taming the include hell by splitting the
pv_ops structure and removing of a bunch of obsolete code (Juergen
Gross)
* tag 'x86_paravirt_for_v7.0_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (23 commits)
x86/paravirt: Use XOR r32,r32 to clear register in pv_vcpu_is_preempted()
x86/paravirt: Remove trailing semicolons from alternative asm templates
x86/pvlocks: Move paravirt spinlock functions into own header
x86/paravirt: Specify pv_ops array in paravirt macros
x86/paravirt: Allow pv-calls outside paravirt.h
objtool: Allow multiple pv_ops arrays
x86/xen: Drop xen_mmu_ops
x86/xen: Drop xen_cpu_ops
x86/xen: Drop xen_irq_ops
x86/paravirt: Move pv_native_*() prototypes to paravirt.c
x86/paravirt: Introduce new paravirt-base.h header
x86/paravirt: Move paravirt_sched_clock() related code into tsc.c
x86/paravirt: Use common code for paravirt_steal_clock()
riscv/paravirt: Use common code for paravirt_steal_clock()
loongarch/paravirt: Use common code for paravirt_steal_clock()
arm64/paravirt: Use common code for paravirt_steal_clock()
arm/paravirt: Use common code for paravirt_steal_clock()
sched: Move clock related paravirt code to kernel/sched
paravirt: Remove asm/paravirt_api_clock.h
x86/paravirt: Move thunk macros to paravirt_types.h
...
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 microcode loader update from Borislav Petkov:
- Since debugging the microcode loader makes sense on baremetal too (it
was used in a guest only until now), extend it to be able to do that
too
* tag 'x86_microcode_for_v7.0_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/microcode/AMD: Allow loader debugging to be enabled on baremetal too
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 cleanups from Borislav Petkov:
- The usual set of cleanups and simplifications all over the tree
* tag 'x86_cleanups_for_v7.0_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/segment: Use MOVL when reading segment registers
selftests/x86: Clean up sysret_rip coding style
x86/mm: Hide mm_free_global_asid() definition under CONFIG_BROADCAST_TLB_FLUSH
x86/crash: Use set_memory_p() instead of __set_memory_prot()
x86/CPU/AMD: Simplify the spectral chicken fix
x86/platform/olpc: Replace strcpy() with strscpy() in xo15_sci_add()
x86/split_lock: Remove dead string when split_lock_detect=fatal
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 resource control updates from Borislav Petkov:
- Extend the resctrl machinery to support telemetry monitoring on
Intel (Tony Luck)
The practical usage of this is being able to tell how much energy or
how much work can be attributed to a group of tasks tracked under a
single idenitifier. Prepend this work with proper refactoring of
resctrl domains handling code.
* tag 'x86_cache_for_v7.0_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (30 commits)
x86,fs/resctrl: Update documentation for telemetry events
x86/resctrl: Enable RDT_RESOURCE_PERF_PKG
fs/resctrl: Move RMID initialization to first mount
x86,fs/resctrl: Compute number of RMIDs as minimum across resources
fs/resctrl: Move allocation/free of closid_num_dirty_rmid[]
x86/resctrl: Handle number of RMIDs supported by RDT_RESOURCE_PERF_PKG
x86/resctrl: Add energy/perf choices to rdt boot option
x86,fs/resctrl: Handle domain creation/deletion for RDT_RESOURCE_PERF_PKG
fs/resctrl: Refactor rmdir_mondata_subdir_allrdtgrp()
fs/resctrl: Refactor mkdir_mondata_subdir()
x86/resctrl: Read telemetry events
x86/resctrl: Find and enable usable telemetry events
x86,fs/resctrl: Add architectural event pointer
x86,fs/resctrl: Fill in details of events for performance and energy GUIDs
x86/resctrl: Discover hardware telemetry events
fs/resctrl: Emphasize that L3 monitoring resource is required for summing domains
x86,fs/resctrl: Add and initialize a resource for package scope monitoring
x86,fs/resctrl: Add an architectural hook called for first mount
x86,fs/resctrl: Support binary fixed point event counters
x86,fs/resctrl: Handle events that can be read from any CPU
...
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Building trusted-keys as a module fails modpost with:
ERROR: modpost: "plpks_wrapping_is_supported" [security/keys/trusted-keys/
trusted.ko] undefined!
Export plpks_wrapping_is_supported() so trusted-keys links cleanly
This patch is intended to be applied on top of the earlier "Extend "trusted
" keys to support a new trust source named the PowerVM Key Wrapping Module
(PKWM)" series (v5).
Link: https://lore.kernel.org/all/20260127145228.48320-1-ssrish@linux.ibm.com/
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202602010724.1g9hbLKv-lkp@intel.com/
Signed-off-by: Srish Srinivasan <ssrish@linux.ibm.com>
Tested-by: Venkat Rao Bagalkote <venkat88@linux.ibm.com>
Signed-off-by: Madhavan Srinivasan <maddy@linux.ibm.com>
Link: https://patch.msgid.link/20260201165344.950870-1-ssrish@linux.ibm.com
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 alternatives update from Borislav Petkov:
- Reorganize the alternatives patching mechanism to patch a single
location only once instead of multiple times as it was the case with
the two or three alternative options macros
* tag 'x86_alternatives_for_v7.0_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/alternative: Patch a single alternative location only once
x86/alternative: Use helper functions for patching alternatives
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 irq updates from Thomas Gleixner:
"Trivial cleanups for the posted MSI interrupt handling"
* tag 'x86-irq-2026-02-09' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/irq_remapping: Sanitize posted_msi_supported()
x86/irq: Cleanup posted MSI code
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull VDSO updates from Thomas Gleixner:
- Provide the missing 64-bit variant of clock_getres()
This allows the extension of CONFIG_COMPAT_32BIT_TIME to the vDSO and
finally the removal of 32-bit time types from the kernel and UAPI.
- Remove the useless and broken getcpu_cache from the VDSO
The intention was to provide a trivial way to retrieve the CPU number
from the VDSO, but as the VDSO data is per process there is no way to
make it work.
- Switch get/put_unaligned() from packed struct to memcpy()
The packed struct violates strict aliasing rules which requires to
pass -fno-strict-aliasing to the compiler. As this are scalar values
__builtin_memcpy() turns them into simple loads and stores
- Use __typeof_unqual__() for __unqual_scalar_typeof()
The get/put_unaligned() changes triggered a new sparse warning when
__beNN types are used with get/put_unaligned() as sparse builds add a
special 'bitwise' attribute to them which prevents sparse to evaluate
the Generic in __unqual_scalar_typeof().
Newer sparse versions support __typeof_unqual__() which avoids the
problem, but requires a recent sparse install. So this adds a sanity
check to sparse builds, which validates that sparse is available and
capable of handling it.
- Force inline __cvdso_clock_getres_common()
Compilers sometimes un-inline agressively, which results in function
call overhead and problems with automatic stack variable
initialization.
Interestingly enough the force inlining results in smaller code than
the un-inlined variant produced by GCC when optimizing for size.
* tag 'timers-vdso-2026-02-09' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
vdso/gettimeofday: Force inlining of __cvdso_clock_getres_common()
x86/percpu: Make CONFIG_USE_X86_SEG_SUPPORT work with sparse
compiler: Use __typeof_unqual__() for __unqual_scalar_typeof()
powerpc/vdso: Provide clock_getres_time64()
tools headers: Remove unneeded ignoring of warnings in unaligned.h
tools headers: Update the linux/unaligned.h copy with the kernel sources
vdso: Switch get/put_unaligned() from packed struct to memcpy()
parisc: Inline a type punning version of get_unaligned_le32()
vdso: Remove struct getcpu_cache
MIPS: vdso: Provide getres_time64() for 32-bit ABIs
arm64: vdso32: Provide clock_getres_time64()
ARM: VDSO: Provide clock_getres_time64()
ARM: VDSO: Patch out __vdso_clock_getres() if unavailable
x86/vdso: Provide clock_getres_time64() for x86-32
selftests: vDSO: vdso_test_abi: Add test for clock_getres_time64()
selftests: vDSO: vdso_test_abi: Use UAPI system call numbers
selftests: vDSO: vdso_config: Add configurations for clock_getres_time64()
vdso: Add prototype for __vdso_clock_getres_time64()
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull MSI updates from Thomas Gleixner:
"Updates for the [PCI] MSI subsystem:
- Add interrupt redirection infrastructure
Some PCI controllers use a single demultiplexing interrupt for the
MSI interrupts of subordinate devices.
This prevents setting the interrupt affinity of device interrupts,
which causes device interrupts to be delivered to a single CPU.
That obviously is counterproductive for multi-queue devices and
interrupt balancing.
To work around this limitation the new infrastructure installs a
dummy irq_set_affinity() callback which captures the affinity mask
and picks a redirection target CPU out of the mask.
When the PCI controller demultiplexes the interrupts it invokes a
new handling function in the core, which either runs the interrupt
handler in the context of the target CPU or delegates it to
irq_work on the target CPU.
- Utilize the interrupt redirection mechanism in the PCI DWC host
controller driver.
This allows affinity control for the subordinate device MSI
interrupts instead of being randomly executed on the CPU which runs
the demultiplex handler.
- Replace the binary 64-bit MSI flag with a DMA mask
Some PCI devices have PCI_MSI_FLAGS_64BIT in the MSI capability,
but implement less than 64 address bits. This breaks on platforms
where such a device is assigned an MSI address higher than what's
supported.
With the binary 64-bit flag there is no other choice than disabling
64-bit MSI support which leaves the device disfunctional.
By using a DMA mask the address limit of a device can be described
correctly which provides support for the above scenario.
- Make use of the DMA mask based address limit in the hda/intel and
radeon drivers to enable them on affected platforms
- The usual small cleanups and improvements"
* tag 'irq-msi-2026-02-09' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
ALSA: hda/intel: Make MSI address limit based on the device DMA limit
drm/radeon: Make MSI address limit based on the device DMA limit
PCI/MSI: Check the device specific address mask in msi_verify_entries()
PCI/MSI: Convert the boolean no_64bit_msi flag to a DMA address mask
genirq/redirect: Prevent writing MSI message on affinity change
PCI/MSI: Unmap MSI-X region on error
genirq: Update effective affinity for redirected interrupts
PCI: dwc: Enable MSI affinity support
PCI: dwc: Code cleanup
genirq: Add interrupt redirection infrastructure
genirq/msi: Correct kernel-doc in <linux/msi.h>
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull irq chip driver updates from Thomas Gleixner:
- Add support for the Renesas RZ/V2N SoC
- Add a new driver for the Renesas RZ/[TN]2H SoCs
- Preserve the register state of the RISCV APLIC interrupt controller
accross suspend/resume
- Reinitialize the RISCV IMSIC registers after suspend/resume
- Make the various Loongson interrupt chip drivers 32/64-bit aware
- Handle the number of hardware interrupts in the SIFIVE PLIC driver
correctly
The hardware interrupt 0 is reserved which resulted in inconsistent
accounting. That went unnoticed as the off by one is only noticable
when the number of device interrupts is a multiple of 32
- The usual device tree updates, cleanups and improvements all over the
place
* tag 'irq-drivers-2026-02-09' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (24 commits)
irqchip/gic-v5: Fix spelling mistake "ouside" -> "outside"
dt-bindings: interrupt-controller: sifive,plic: Clarify the riscv,ndev meaning in PLIC
irqchip/sifive-plic: Handle number of hardware interrupts correctly
irqchip/aspeed-scu-ic: Remove unused variable mask
irqchip/ti-sci-intr: Allow parsing interrupt-types per-line
dt-bindings: interrupt-controller: ti,sci-intr: Per-line interrupt-types
irqchip/renesas-rzv2h: Add suspend/resume support
irqchip/aslint-sswi: Fix error check of of_io_request_and_map() result
irqchip: Allow LoongArch irqchip drivers on both 32BIT/64BIT
irqchip/loongson-pch-pic: Adjust irqchip driver for 32BIT/64BIT
irqchip/loongson-pch-msi: Adjust irqchip driver for 32BIT/64BIT
irqchip/loongson-htvec: Adjust irqchip driver for 32BIT/64BIT
irqchip/loongson-eiointc: Adjust irqchip driver for 32BIT/64BIT
irqchip/loongson-liointc: Adjust irqchip driver for 32BIT/64BIT
irqchip/loongarch-avec: Adjust irqchip driver for 32BIT/64BIT
irqchip/riscv-aplic: Preserve APLIC states across suspend/resume
irqchip/riscv-imsic: Add a CPU pm notifier to restore the IMSIC on exit
arm64: dts: renesas: r9a09g087: Add ICU support
arm64: dts: renesas: r9a09g077: Add ICU support
irqchip: Add RZ/{T2H,N2H} Interrupt Controller (ICU) driver
...
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|
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull irq core updates from Thomas Gleixner:
"Updates for the interrupt core subsystem:
- Remove the interrupt timing infrastructure
This was added seven years ago to be used for power management
purposes, but that integration never happened.
- Clean up the remaining setup_percpu_irq() users
The memory allocator is available when interrupts can be requested
so there is not need for static irq_action. Move the remaining
users to request_percpu_irq() and delete the historical cruft.
- Warn when interrupt flag inconsistencies are detected in
request*_irq().
Inconsistent flags can lead to hard to diagnose malfunction. The
fallout of this new warning has been addressed in next and the
fixes are coming in via the maintainer trees and the tip
irq/cleanup pull requests.
- Invoke affinity notifier when CPU hotplug breaks affinity
Otherwise the code using the notifier misses the affinity change
and operates on stale information.
- The usual cleanups and improvements"
* tag 'irq-core-2026-02-09' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
genirq/proc: Replace snprintf with strscpy in register_handler_proc
genirq/cpuhotplug: Notify about affinity changes breaking the affinity mask
genirq: Move clear of kstat_irqs to free_desc()
genirq: Warn about using IRQF_ONESHOT without a threaded handler
irqdomain: Fix up const problem in irq_domain_set_name()
genirq: Remove setup_percpu_irq()
clocksource/drivers/mips-gic-timer: Move GIC timer to request_percpu_irq()
MIPS: Move IP27 timer to request_percpu_irq()
MIPS: Move IP30 timer to request_percpu_irq()
genirq: Remove __request_percpu_irq() helper
genirq: Remove IRQ timing tracking infrastructure
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull irq cleanups from Thomas Gleixner:
"A series of treewide cleanups to ensure interrupt request consistency.
- Add the missing IRQF_COND_ONESHOT flag to devm_request_irq()
This is inconsistent vs request_irq() and causes the same issues
which where addressed with the introduction of this flag
- Cleanup IRQF_ONESHOT and IRQF_NO_THREAD usage
Quite some drivers have inconsistent interrupt request flags
related to interrupt threading namely IRQF_ONESHOT and
IRQF_NO_THREAD. This leads to warnings and/or malfunction when
forced interrupt threading is enabled.
- Remove stub primary (hard interrupt) handlers
A bunch of drivers implement a stub primary (hard interrupt)
handler which just returns IRQ_WAKE_THREAD. The same functionality
is provided by the core code when the primary handler argument of
request_thread_irq() is set to NULL"
* tag 'irq-cleanups-2026-02-09' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
media: pci: mg4b: Use IRQF_NO_THREAD
mfd: wm8350-core: Use IRQF_ONESHOT
thermal/qcom/lmh: Replace IRQF_ONESHOT with IRQF_NO_THREAD
rtc: amlogic-a4: Remove IRQF_ONESHOT
usb: typec: fusb302: Remove IRQF_ONESHOT
EDAC/altera: Remove IRQF_ONESHOT
char: tpm: cr50: Remove IRQF_ONESHOT
ARM: versatile: Remove IRQF_ONESHOT
scsi: efct: Use IRQF_ONESHOT and default primary handler
Bluetooth: btintel_pcie: Use IRQF_ONESHOT and default primary handler
bus: fsl-mc: Use default primary handler
mailbox: bcm-ferxrm-mailbox: Use default primary handler
iommu/amd: Use core's primary handler and set IRQF_ONESHOT
platform/x86: int0002: Remove IRQF_ONESHOT from request_irq()
genirq: Set IRQF_COND_ONESHOT in devm_request_irq().
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 platform update from Ingo MolnarL
- x86/hyperv: Fix smp_ops build failure on UP kernels (Ingo Molnar)
* tag 'x86-platform-2026-02-09' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/hyperv: Fix smp_ops build failure on UP kernels
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 cpu updates from Ingo Molnar:
- CPU model updates (Andrew Cooper):
- amd: Correct the microcode table for Zenbleed
- amd: Use ZEN_MODEL_STEP_UCODE() for erratum_1386_microcode[]
- Drop vestigial PBE logic in AMD/Hygon/Centaur/Cyrix
- tsx: Set default TSX mode to auto (Nikolay Borisov)
- Drop unused Kconfig symbol X86_P6_NOP (Randy Dunlap)
* tag 'x86-cpu-2026-02-09' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/tsx: Set default TSX mode to auto
x86/cpu: Drop unused Kconfig symbol X86_P6_NOP
x86/cpu: Drop vestigial PBE logic in AMD/Hygon/Centaur/Cyrix
x86/cpu/amd: Use ZEN_MODEL_STEP_UCODE() for erratum_1386_microcode[]
x86/cpu/amd: Correct the microcode table for Zenbleed
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 APIC update from Ingo Molnar:
- Inline __x2apic_send_IPI_dest() (Eric Dumazet)
* tag 'x86-apic-2026-02-09' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/apic: Inline __x2apic_send_IPI_dest()
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86/boot updates from Ingo Molnar:
- x86/acpi: Add acpi=spcr to use SPCR-provided default console
(Shenghao Yang)
- x86/acpi/boot: Correct the acpi_is_processor_usable() check again
(Yazen Ghannam)
- Refresh the x86 memory map (e820 table) handling code, and make the
printouts a bit more informative (Ingo Molnar)
* tag 'x86-boot-2026-02-09' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (30 commits)
x86/acpi: Add acpi=spcr to use SPCR-provided default console
x86/boot/e820: Use <linux/sizes.h> symbols for literals
x86/boot/e820: Make sure e820_search_gap() finds all gaps
x86/boot/e820: Simplify the e820__range_remove() API
x86/boot/e820: Remove e820__range_remove()'s unused return parameter
x86/boot/e820: Simplify append_e820_table() and remove restriction on single-entry tables
x86/boot/e820: Standardize __init/__initdata tag placement
x86/boot/e820: Simplify & clarify __e820__range_add() a bit
x86/boot/e820: Rename gap_start/gap_size to max_gap_start/max_gap_start in e820_search_gap() et al
x86/boot/e820: Change e820_search_gap() to search for the highest-address PCI gap
x86/boot/e820: Clean up e820__setup_pci_gap()/e820_search_gap() a bit
x86/boot/e820: Change struct e820_table::nr_entries type from __u32 to u32
x86/boot/e820: Standardize e820 table index variable types under 'u32'
x86/boot/e820: Standardize e820 table index variable names under 'idx'
x86/boot/e820: Remove unnecessary header inclusions
x86/boot/e820: Clean up __refdata use a bit
x86/boot/e820: Clean up __e820__range_add() a bit
x86/boot/e820: Improve e820_print_type() messages
x86/boot/e820: Clean up confusing and self-contradictory verbiage around E820 related resource allocations
x86/boot/e820: Remove pointless early_panic() indirection
...
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull scheduler updates from Ingo Molnar:
"Scheduler Kconfig space updates:
- Further consolidate configurable preemption modes (Peter Zijlstra)
Reduce the number of architectures that are allowed to offer
PREEMPT_NONE and PREEMPT_VOLUNTARY, reducing the number of
preemption models from four to just two: 'full' and 'lazy' on
up-to-date architectures (arm64, loongarch, powerpc, riscv, s390,
x86).
None and voluntary are only available as legacy features on
platforms that don't implement lazy preemption yet, or which don't
even support preemption.
The goal is to eventually remove cond_resched() and voluntary
preemption altogether.
RSEQ based 'scheduler time slice extension' support (Thomas Gleixner
and Peter Zijlstra):
This allows a thread to request a time slice extension when it enters
a critical section to avoid contention on a resource when the thread
is scheduled out inside of the critical section.
- Add fields and constants for time slice extension
- Provide static branch for time slice extensions
- Add statistics for time slice extensions
- Add prctl() to enable time slice extensions
- Implement sys_rseq_slice_yield()
- Implement syscall entry work for time slice extensions
- Implement time slice extension enforcement timer
- Reset slice extension when scheduled
- Implement rseq_grant_slice_extension()
- entry: Hook up rseq time slice extension
- selftests: Implement time slice extension test
- Allow registering RSEQ with slice extension
- Move slice_ext_nsec to debugfs
- Lower default slice extension
- selftests/rseq: Add rseq slice histogram script
Scheduler performance/scalability improvements:
- Update rq->avg_idle when a task is moved to an idle CPU, which
improves the scalability of various workloads (Shubhang Kaushik)
- Reorder fields in 'struct rq' for better caching (Blake Jones)
- Fair scheduler SMP NOHZ balancing code speedups (Shrikanth Hegde):
- Move checking for nohz cpus after time check
- Change likelyhood of nohz.nr_cpus
- Remove nohz.nr_cpus and use weight of cpumask instead
- Avoid false sharing for sched_clock_irqtime (Wangyang Guo)
- Cleanups (Yury Norov):
- Drop useless cpumask_empty() in find_energy_efficient_cpu()
- Simplify task_numa_find_cpu()
- Use cpumask_weight_and() in sched_balance_find_dst_group()
DL scheduler updates:
- Add a deadline server for sched_ext tasks (by Andrea Righi and Joel
Fernandes, with fixes by Peter Zijlstra)
RT scheduler updates:
- Skip currently executing CPU in rto_next_cpu() (Chen Jinghuang)
Entry code updates and performance improvements (Jinjie Ruan)
This is part of the scheduler tree in this cycle due to inter-
dependencies with the RSEQ based time slice extension work:
- Remove unused syscall argument from syscall_trace_enter()
- Rework syscall_exit_to_user_mode_work() for architecture reuse
- Add arch_ptrace_report_syscall_entry/exit()
- Inline syscall_exit_work() and syscall_trace_enter()
Scheduler core updates (Peter Zijlstra):
- Rework sched_class::wakeup_preempt() and rq_modified_*()
- Avoid rq->lock bouncing in sched_balance_newidle()
- Rename rcu_dereference_check_sched_domain() =>
rcu_dereference_sched_domain()
- <linux/compiler_types.h>: Add the __signed_scalar_typeof() helper
Fair scheduler updates/refactoring (Peter Zijlstra and Ingo Molnar):
- Fold the sched_avg update
- Change rcu_dereference_check_sched_domain() to rcu-sched
- Switch to rcu_dereference_all()
- Remove superfluous rcu_read_lock()
- Limit hrtick work
- Join two #ifdef CONFIG_FAIR_GROUP_SCHED blocks
- Clean up comments in 'struct cfs_rq'
- Separate se->vlag from se->vprot
- Rename cfs_rq::avg_load to cfs_rq::sum_weight
- Rename cfs_rq::avg_vruntime to ::sum_w_vruntime & helper functions
- Introduce and use the vruntime_cmp() and vruntime_op() wrappers for
wrapped-signed aritmetics
- Sort out 'blocked_load*' namespace noise
Scheduler debugging code updates:
- Export hidden tracepoints to modules (Gabriele Monaco)
- Convert copy_from_user() + kstrtouint() to kstrtouint_from_user()
(Fushuai Wang)
- Add assertions to QUEUE_CLASS (Peter Zijlstra)
- hrtimer: Fix tracing oddity (Thomas Gleixner)
Misc fixes and cleanups:
- Re-evaluate scheduling when migrating queued tasks out of throttled
cgroups (Zicheng Qu)
- Remove task_struct->faults_disabled_mapping (Christoph Hellwig)
- Fix math notation errors in avg_vruntime comment (Zhan Xusheng)
- sched/cpufreq: Use %pe format for PTR_ERR() printing
(zenghongling)"
* tag 'sched-core-2026-02-09' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (64 commits)
sched: Re-evaluate scheduling when migrating queued tasks out of throttled cgroups
sched/cpufreq: Use %pe format for PTR_ERR() printing
sched/rt: Skip currently executing CPU in rto_next_cpu()
sched/clock: Avoid false sharing for sched_clock_irqtime
selftests/sched_ext: Add test for DL server total_bw consistency
selftests/sched_ext: Add test for sched_ext dl_server
sched/debug: Fix dl_server (re)start conditions
sched/debug: Add support to change sched_ext server params
sched_ext: Add a DL server for sched_ext tasks
sched/debug: Stop and start server based on if it was active
sched/debug: Fix updating of ppos on server write ops
sched/deadline: Clear the defer params
entry: Inline syscall_exit_work() and syscall_trace_enter()
entry: Add arch_ptrace_report_syscall_entry/exit()
entry: Rework syscall_exit_to_user_mode_work() for architecture reuse
entry: Remove unused syscall argument from syscall_trace_enter()
sched: remove task_struct->faults_disabled_mapping
sched: Update rq->avg_idle when a task is moved to an idle CPU
selftests/rseq: Add rseq slice histogram script
hrtimer: Fix trace oddity
...
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull locking updates from Ingo Molnar:
"Lock debugging:
- Implement compiler-driven static analysis locking context checking,
using the upcoming Clang 22 compiler's context analysis features
(Marco Elver)
We removed Sparse context analysis support, because prior to
removal even a defconfig kernel produced 1,700+ context tracking
Sparse warnings, the overwhelming majority of which are false
positives. On an allmodconfig kernel the number of false positive
context tracking Sparse warnings grows to over 5,200... On the plus
side of the balance actual locking bugs found by Sparse context
analysis is also rather ... sparse: I found only 3 such commits in
the last 3 years. So the rate of false positives and the
maintenance overhead is rather high and there appears to be no
active policy in place to achieve a zero-warnings baseline to move
the annotations & fixers to developers who introduce new code.
Clang context analysis is more complete and more aggressive in
trying to find bugs, at least in principle. Plus it has a different
model to enabling it: it's enabled subsystem by subsystem, which
results in zero warnings on all relevant kernel builds (as far as
our testing managed to cover it). Which allowed us to enable it by
default, similar to other compiler warnings, with the expectation
that there are no warnings going forward. This enforces a
zero-warnings baseline on clang-22+ builds (Which are still limited
in distribution, admittedly)
Hopefully the Clang approach can lead to a more maintainable
zero-warnings status quo and policy, with more and more subsystems
and drivers enabling the feature. Context tracking can be enabled
for all kernel code via WARN_CONTEXT_ANALYSIS_ALL=y (default
disabled), but this will generate a lot of false positives.
( Having said that, Sparse support could still be added back,
if anyone is interested - the removal patch is still
relatively straightforward to revert at this stage. )
Rust integration updates: (Alice Ryhl, Fujita Tomonori, Boqun Feng)
- Add support for Atomic<i8/i16/bool> and replace most Rust native
AtomicBool usages with Atomic<bool>
- Clean up LockClassKey and improve its documentation
- Add missing Send and Sync trait implementation for SetOnce
- Make ARef Unpin as it is supposed to be
- Add __rust_helper to a few Rust helpers as a preparation for
helper LTO
- Inline various lock related functions to avoid additional function
calls
WW mutexes:
- Extend ww_mutex tests and other test-ww_mutex updates (John
Stultz)
Misc fixes and cleanups:
- rcu: Mark lockdep_assert_rcu_helper() __always_inline (Arnd
Bergmann)
- locking/local_lock: Include more missing headers (Peter Zijlstra)
- seqlock: fix scoped_seqlock_read kernel-doc (Randy Dunlap)
- rust: sync: Replace `kernel::c_str!` with C-Strings (Tamir
Duberstein)"
* tag 'locking-core-2026-02-08' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (90 commits)
locking/rwlock: Fix write_trylock_irqsave() with CONFIG_INLINE_WRITE_TRYLOCK
rcu: Mark lockdep_assert_rcu_helper() __always_inline
compiler-context-analysis: Remove __assume_ctx_lock from initializers
tomoyo: Use scoped init guard
crypto: Use scoped init guard
kcov: Use scoped init guard
compiler-context-analysis: Introduce scoped init guards
cleanup: Make __DEFINE_LOCK_GUARD handle commas in initializers
seqlock: fix scoped_seqlock_read kernel-doc
tools: Update context analysis macros in compiler_types.h
rust: sync: Replace `kernel::c_str!` with C-Strings
rust: sync: Inline various lock related methods
rust: helpers: Move #define __rust_helper out of atomic.c
rust: wait: Add __rust_helper to helpers
rust: time: Add __rust_helper to helpers
rust: task: Add __rust_helper to helpers
rust: sync: Add __rust_helper to helpers
rust: refcount: Add __rust_helper to helpers
rust: rcu: Add __rust_helper to helpers
rust: processor: Add __rust_helper to helpers
...
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull performance event updates from Ingo Molnar:
"x86 PMU driver updates:
- Add support for the core PMU for Intel Diamond Rapids (DMR) CPUs
(Dapeng Mi)
Compared to previous iterations of the Intel PMU code, there's been
a lot of changes, which center around three main areas:
- Introduce the OFF-MODULE RESPONSE (OMR) facility to replace the
Off-Core Response (OCR) facility
- New PEBS data source encoding layout
- Support the new "RDPMC user disable" feature
- Likewise, a large series adds uncore PMU support for Intel Diamond
Rapids (DMR) CPUs (Zide Chen)
This centers around these four main areas:
- DMR may have two Integrated I/O and Memory Hub (IMH) dies,
separate from the compute tile (CBB) dies. Each CBB and each IMH
die has its own discovery domain.
- Unlike prior CPUs that retrieve the global discovery table
portal exclusively via PCI or MSR, DMR uses PCI for IMH PMON
discovery and MSR for CBB PMON discovery.
- DMR introduces several new PMON types: SCA, HAMVF, D2D_ULA, UBR,
PCIE4, CRS, CPC, ITC, OTC, CMS, and PCIE6.
- IIO free-running counters in DMR are MMIO-based, unlike SPR.
- Also add support for Add missing PMON units for Intel Panther Lake,
and support Nova Lake (NVL), which largely maps to Panther Lake.
(Zide Chen)
- KVM integration: Add support for mediated vPMUs (by Kan Liang and
Sean Christopherson, with fixes and cleanups by Peter Zijlstra,
Sandipan Das and Mingwei Zhang)
- Add Intel cstate driver to support for Wildcat Lake (WCL) CPUs,
which are a low-power variant of Panther Lake (Zide Chen)
- Add core, cstate and MSR PMU support for the Airmont NP Intel CPU
(aka MaxLinear Lightning Mountain), which maps to the existing
Airmont code (Martin Schiller)
Performance enhancements:
- Speed up kexec shutdown by avoiding unnecessary cross CPU calls
(Jan H. Schönherr)
- Fix slow perf_event_task_exit() with LBR callstacks (Namhyung Kim)
User-space stack unwinding support:
- Various cleanups and refactorings in preparation to generalize the
unwinding code for other architectures (Jens Remus)
Uprobes updates:
- Transition from kmap_atomic to kmap_local_page (Keke Ming)
- Fix incorrect lockdep condition in filter_chain() (Breno Leitao)
- Fix XOL allocation failure for 32-bit tasks (Oleg Nesterov)
Misc fixes and cleanups:
- s390: Remove kvm_types.h from Kbuild (Randy Dunlap)
- x86/intel/uncore: Convert comma to semicolon (Chen Ni)
- x86/uncore: Clean up const mismatch (Greg Kroah-Hartman)
- x86/ibs: Fix typo in dc_l2tlb_miss comment (Xiang-Bin Shi)"
* tag 'perf-core-2026-02-09' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (58 commits)
s390: remove kvm_types.h from Kbuild
uprobes: Fix incorrect lockdep condition in filter_chain()
x86/ibs: Fix typo in dc_l2tlb_miss comment
x86/uprobes: Fix XOL allocation failure for 32-bit tasks
perf/x86/intel/uncore: Convert comma to semicolon
perf/x86/intel: Add support for rdpmc user disable feature
perf/x86: Use macros to replace magic numbers in attr_rdpmc
perf/x86/intel: Add core PMU support for Novalake
perf/x86/intel: Add support for PEBS memory auxiliary info field in NVL
perf/x86/intel: Add core PMU support for DMR
perf/x86/intel: Add support for PEBS memory auxiliary info field in DMR
perf/x86/intel: Support the 4 new OMR MSRs introduced in DMR and NVL
perf/core: Fix slow perf_event_task_exit() with LBR callstacks
perf/core: Speed up kexec shutdown by avoiding unnecessary cross CPU calls
uprobes: use kmap_local_page() for temporary page mappings
arm/uprobes: use kmap_local_page() in arch_uprobe_copy_ixol()
mips/uprobes: use kmap_local_page() in arch_uprobe_copy_ixol()
arm64/uprobes: use kmap_local_page() in arch_uprobe_copy_ixol()
riscv/uprobes: use kmap_local_page() in arch_uprobe_copy_ixol()
perf/x86/intel/uncore: Add Nova Lake support
...
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git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next
Pull bpf updates from Alexei Starovoitov:
- Support associating BPF program with struct_ops (Amery Hung)
- Switch BPF local storage to rqspinlock and remove recursion detection
counters which were causing false positives (Amery Hung)
- Fix live registers marking for indirect jumps (Anton Protopopov)
- Introduce execution context detection BPF helpers (Changwoo Min)
- Improve verifier precision for 32bit sign extension pattern
(Cupertino Miranda)
- Optimize BTF type lookup by sorting vmlinux BTF and doing binary
search (Donglin Peng)
- Allow states pruning for misc/invalid slots in iterator loops (Eduard
Zingerman)
- In preparation for ASAN support in BPF arenas teach libbpf to move
global BPF variables to the end of the region and enable arena kfuncs
while holding locks (Emil Tsalapatis)
- Introduce support for implicit arguments in kfuncs and migrate a
number of them to new API. This is a prerequisite for cgroup
sub-schedulers in sched-ext (Ihor Solodrai)
- Fix incorrect copied_seq calculation in sockmap (Jiayuan Chen)
- Fix ORC stack unwind from kprobe_multi (Jiri Olsa)
- Speed up fentry attach by using single ftrace direct ops in BPF
trampolines (Jiri Olsa)
- Require frozen map for calculating map hash (KP Singh)
- Fix lock entry creation in TAS fallback in rqspinlock (Kumar
Kartikeya Dwivedi)
- Allow user space to select cpu in lookup/update operations on per-cpu
array and hash maps (Leon Hwang)
- Make kfuncs return trusted pointers by default (Matt Bobrowski)
- Introduce "fsession" support where single BPF program is executed
upon entry and exit from traced kernel function (Menglong Dong)
- Allow bpf_timer and bpf_wq use in all programs types (Mykyta
Yatsenko, Andrii Nakryiko, Kumar Kartikeya Dwivedi, Alexei
Starovoitov)
- Make KF_TRUSTED_ARGS the default for all kfuncs and clean up their
definition across the tree (Puranjay Mohan)
- Allow BPF arena calls from non-sleepable context (Puranjay Mohan)
- Improve register id comparison logic in the verifier and extend
linked registers with negative offsets (Puranjay Mohan)
- In preparation for BPF-OOM introduce kfuncs to access memcg events
(Roman Gushchin)
- Use CFI compatible destructor kfunc type (Sami Tolvanen)
- Add bitwise tracking for BPF_END in the verifier (Tianci Cao)
- Add range tracking for BPF_DIV and BPF_MOD in the verifier (Yazhou
Tang)
- Make BPF selftests work with 64k page size (Yonghong Song)
* tag 'bpf-next-7.0' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next: (268 commits)
selftests/bpf: Fix outdated test on storage->smap
selftests/bpf: Choose another percpu variable in bpf for btf_dump test
selftests/bpf: Remove test_task_storage_map_stress_lookup
selftests/bpf: Update task_local_storage/task_storage_nodeadlock test
selftests/bpf: Update task_local_storage/recursion test
selftests/bpf: Update sk_storage_omem_uncharge test
bpf: Switch to bpf_selem_unlink_nofail in bpf_local_storage_{map_free, destroy}
bpf: Support lockless unlink when freeing map or local storage
bpf: Prepare for bpf_selem_unlink_nofail()
bpf: Remove unused percpu counter from bpf_local_storage_map_free
bpf: Remove cgroup local storage percpu counter
bpf: Remove task local storage percpu counter
bpf: Change local_storage->lock and b->lock to rqspinlock
bpf: Convert bpf_selem_unlink to failable
bpf: Convert bpf_selem_link_map to failable
bpf: Convert bpf_selem_unlink_map to failable
bpf: Select bpf_local_storage_map_bucket based on bpf_local_storage
selftests/xsk: fix number of Tx frags in invalid packet
selftests/xsk: properly handle batch ending in the middle of a packet
bpf: Prevent reentrance into call_rcu_tasks_trace()
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git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Pull crypto update from Herbert Xu:
"API:
- Fix race condition in hwrng core by using RCU
Algorithms:
- Allow authenc(sha224,rfc3686) in fips mode
- Add test vectors for authenc(hmac(sha384),cbc(aes))
- Add test vectors for authenc(hmac(sha224),cbc(aes))
- Add test vectors for authenc(hmac(md5),cbc(des3_ede))
- Add lz4 support in hisi_zip
- Only allow clear key use during self-test in s390/{phmac,paes}
Drivers:
- Set rng quality to 900 in airoha
- Add gcm(aes) support for AMD/Xilinx Versal device
- Allow tfms to share device in hisilicon/trng"
* tag 'v7.0-p1' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (100 commits)
crypto: img-hash - Use unregister_ahashes in img_{un}register_algs
crypto: testmgr - Add test vectors for authenc(hmac(md5),cbc(des3_ede))
crypto: cesa - Simplify return statement in mv_cesa_dequeue_req_locked
crypto: testmgr - Add test vectors for authenc(hmac(sha224),cbc(aes))
crypto: testmgr - Add test vectors for authenc(hmac(sha384),cbc(aes))
hwrng: core - use RCU and work_struct to fix race condition
crypto: starfive - Fix memory leak in starfive_aes_aead_do_one_req()
crypto: xilinx - Fix inconsistant indentation
crypto: rng - Use unregister_rngs in register_rngs
crypto: atmel - Use unregister_{aeads,ahashes,skciphers}
hwrng: optee - simplify OP-TEE context match
crypto: ccp - Add sysfs attribute for boot integrity
dt-bindings: crypto: atmel,at91sam9g46-sha: add microchip,lan9691-sha
dt-bindings: crypto: atmel,at91sam9g46-aes: add microchip,lan9691-aes
dt-bindings: crypto: qcom,inline-crypto-engine: document the Milos ICE
crypto: caam - fix netdev memory leak in dpaa2_caam_probe
crypto: hisilicon/qm - increase wait time for mailbox
crypto: hisilicon/qm - obtain the mailbox configuration at one time
crypto: hisilicon/qm - remove unnecessary code in qm_mb_write()
crypto: hisilicon/qm - move the barrier before writing to the mailbox register
...
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git://git.kernel.org/pub/scm/linux/kernel/git/ebiggers/linux
Pull crypto library updates from Eric Biggers:
- Add support for verifying ML-DSA signatures.
ML-DSA (Module-Lattice-Based Digital Signature Algorithm) is a
recently-standardized post-quantum (quantum-resistant) signature
algorithm. It was known as Dilithium pre-standardization.
The first use case in the kernel will be module signing. But there
are also other users of RSA and ECDSA signatures in the kernel that
might want to upgrade to ML-DSA eventually.
- Improve the AES library:
- Make the AES key expansion and single block encryption and
decryption functions use the architecture-optimized AES code.
Enable these optimizations by default.
- Support preparing an AES key for encryption-only, using about
half as much memory as a bidirectional key.
- Replace the existing two generic implementations of AES with a
single one.
- Simplify how Adiantum message hashing is implemented. Remove the
"nhpoly1305" crypto_shash in favor of direct lib/crypto/ support for
NH hashing, and enable optimizations by default.
* tag 'libcrypto-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiggers/linux: (53 commits)
lib/crypto: mldsa: Clarify the documentation for mldsa_verify() slightly
lib/crypto: aes: Drop 'volatile' from aes_sbox and aes_inv_sbox
lib/crypto: aes: Remove old AES en/decryption functions
lib/crypto: aesgcm: Use new AES library API
lib/crypto: aescfb: Use new AES library API
crypto: omap - Use new AES library API
crypto: inside-secure - Use new AES library API
crypto: drbg - Use new AES library API
crypto: crypto4xx - Use new AES library API
crypto: chelsio - Use new AES library API
crypto: ccp - Use new AES library API
crypto: x86/aes-gcm - Use new AES library API
crypto: arm64/ghash - Use new AES library API
crypto: arm/ghash - Use new AES library API
staging: rtl8723bs: core: Use new AES library API
net: phy: mscc: macsec: Use new AES library API
chelsio: Use new AES library API
Bluetooth: SMP: Use new AES library API
crypto: x86/aes - Remove the superseded AES-NI crypto_cipher
lib/crypto: x86/aes: Add AES-NI optimization
...
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The module is supported, enable it.
Signed-off-by: Binbin Zhou <zhoubinbin@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
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The module is supported, enable it.
Signed-off-by: Binbin Zhou <zhoubinbin@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
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LLVM generates bpf_addr_space_cast instruction while translating pointers
between native (zero) address space and __attribute__((address_space(N))).
The addr_space=0 is reserved as bpf_arena address space.
rY = addr_space_cast(rX, 0, 1) is processed by the verifier and converted
to normal 32-bit move: wX = wY
rY = addr_space_cast(rX, 1, 0) has to be converted by JIT.
With this, the following test cases passed:
$ ./test_progs -a arena_htab,arena_list,arena_strsearch,verifier_arena,verifier_arena_large
#4/1 arena_htab/arena_htab_llvm:OK
#4/2 arena_htab/arena_htab_asm:OK
#4 arena_htab:OK
#5/1 arena_list/arena_list_1:OK
#5/2 arena_list/arena_list_1000:OK
#5 arena_list:OK
#7/1 arena_strsearch/arena_strsearch:OK
#7 arena_strsearch:OK
#507/1 verifier_arena/basic_alloc1:OK
#507/2 verifier_arena/basic_alloc2:OK
#507/3 verifier_arena/basic_alloc3:OK
#507/4 verifier_arena/basic_reserve1:OK
#507/5 verifier_arena/basic_reserve2:OK
#507/6 verifier_arena/reserve_twice:OK
#507/7 verifier_arena/reserve_invalid_region:OK
#507/8 verifier_arena/iter_maps1:OK
#507/9 verifier_arena/iter_maps2:OK
#507/10 verifier_arena/iter_maps3:OK
#507 verifier_arena:OK
#508/1 verifier_arena_large/big_alloc1:OK
#508/2 verifier_arena_large/access_reserved:OK
#508/3 verifier_arena_large/request_partially_reserved:OK
#508/4 verifier_arena_large/free_reserved:OK
#508/5 verifier_arena_large/big_alloc2:OK
#508 verifier_arena_large:OK
Summary: 5/20 PASSED, 0 SKIPPED, 0 FAILED
Acked-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Tested-by: Vincent Li <vincent.mc.li@gmail.com>
Signed-off-by: Hengqi Chen <hengqi.chen@gmail.com>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
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Add support for `{LDX,STX,ST} | PROBE_MEM32 | {B,H,W,DW}` instructions.
They are similar to PROBE_MEM instructions with the following differences:
* PROBE_MEM32 supports store.
* PROBE_MEM32 relies on the verifier to clear upper 32-bit of the
src/dst register
* PROBE_MEM32 adds 64-bit kern_vm_start address (which is stored in S6
in the prologue). Due to bpf_arena constructions such S6 + reg +
off16 access is guaranteed to be within arena virtual range, so no
address check at run-time.
* S6 is a free callee-saved register, so it is used to store arena_vm_start
* PROBE_MEM32 allows ST and STX. If they fault the store is a nop. When
LDX faults the destination register is zeroed.
To support these on LoongArch, we employ the t2/t3 registers to store the
intermediate results of reg_arena + src/dst reg and use the t2/t3 registers
as the new src/dst reg. This allows us to reuse most of the existing code.
Acked-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Tested-by: Vincent Li <vincent.mc.li@gmail.com>
Signed-off-by: Hengqi Chen <hengqi.chen@gmail.com>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
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Use bpf_jit_binary_pack_alloc() for BPF JIT binaries. The BPF prog pack
allocator creates a pair of RW and RX buffers. The BPF JIT writes the
program into the RW buffer. When the JIT is done, the program is copied
to the final RX buffer with bpf_jit_binary_pack_finalize().
Acked-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Tested-by: Vincent Li <vincent.mc.li@gmail.com>
Signed-off-by: Hengqi Chen <hengqi.chen@gmail.com>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
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In commit a759e37fb467 ("err.h: add ERR_PTR_PCPU(), PTR_ERR_PCPU() and
IS_ERR_PCPU() macros"), specialized macros were added to check an error
within a __percpu pointer, so use them instead of manually casting with
__force, like all other users of register_wide_hw_breakpoint().
Signed-off-by: Carlos López <clopez@suse.de>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
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