Linus Torvalds [Tue, 24 May 2022 00:38:01 +0000 (17:38 -0700)]
Merge tag 'x86_sev_for_v5.19_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull AMD SEV-SNP support from Borislav Petkov:
"The third AMD confidential computing feature called Secure Nested
Paging.
Add to confidential guests the necessary memory integrity protection
against malicious hypervisor-based attacks like data replay, memory
remapping and others, thus achieving a stronger isolation from the
hypervisor.
At the core of the functionality is a new structure called a reverse
map table (RMP) with which the guest has a say in which pages get
assigned to it and gets notified when a page which it owns, gets
accessed/modified under the covers so that the guest can take an
appropriate action.
In addition, add support for the whole machinery needed to launch a
SNP guest, details of which is properly explained in each patch.
And last but not least, the series refactors and improves parts of the
previous SEV support so that the new code is accomodated properly and
not just bolted on"
* tag 'x86_sev_for_v5.19_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (60 commits)
x86/entry: Fixup objtool/ibt validation
x86/sev: Mark the code returning to user space as syscall gap
x86/sev: Annotate stack change in the #VC handler
x86/sev: Remove duplicated assignment to variable info
x86/sev: Fix address space sparse warning
x86/sev: Get the AP jump table address from secrets page
x86/sev: Add missing __init annotations to SEV init routines
virt: sevguest: Rename the sevguest dir and files to sev-guest
virt: sevguest: Change driver name to reflect generic SEV support
x86/boot: Put globals that are accessed early into the .data section
x86/boot: Add an efi.h header for the decompressor
virt: sevguest: Fix bool function returning negative value
virt: sevguest: Fix return value check in alloc_shared_pages()
x86/sev-es: Replace open-coded hlt-loop with sev_es_terminate()
virt: sevguest: Add documentation for SEV-SNP CPUID Enforcement
virt: sevguest: Add support to get extended report
virt: sevguest: Add support to derive key
virt: Add SEV-SNP guest driver
x86/sev: Register SEV-SNP guest request platform device
x86/sev: Provide support for SNP guest request NAEs
...
Linus Torvalds [Tue, 24 May 2022 00:34:20 +0000 (17:34 -0700)]
Merge tag 'edac_updates_for_v5.19_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/ras/ras
Pull EDAC updates from Borislav Petkov:
- Switch ghes_edac to use the CPER error reporting routines and
simplify the code considerably this way
- Rip out the silly edac_align_ptr() contraption which was computing
the size of the private structures of each driver and thus allowing
for a one-shot memory allocation. This was clearly unnecessary and
confusing so switch to simple and boring kmalloc* calls.
- Last but not least, the usual garden variety of fixes, cleanups and
improvements all over EDAC land
* tag 'edac_updates_for_v5.19_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/ras/ras:
EDAC/xgene: Fix typo processsors -> processors
EDAC/i5100: Remove unused inline function i5100_nrecmema_dm_buf_id()
EDAC: Use kcalloc()
EDAC/ghes: Change ghes_hw from global to static
EDAC/armada_xp: Use devm_platform_ioremap_resource()
EDAC/synopsys: Add a SPDX identifier
EDAC/synopsys: Add driver support for i.MX platforms
EDAC/dmc520: Don't print an error for each unconfigured interrupt line
EDAC/mc: Get rid of edac_align_ptr()
EDAC/device: Sanitize edac_device_alloc_ctl_info() definition
EDAC/device: Get rid of the silly one-shot memory allocation in edac_device_alloc_ctl_info()
EDAC/pci: Get rid of the silly one-shot memory allocation in edac_pci_alloc_ctl_info()
EDAC/mc: Get rid of silly one-shot struct allocation in edac_mc_alloc()
efi/cper: Reformat CPER memory error location to more readable
EDAC/ghes: Unify CPER memory error location reporting
efi/cper: Add a cper_mem_err_status_str() to decode error description
powerpc/85xx: Remove fsl,85... bindings
Linus Torvalds [Tue, 24 May 2022 00:18:25 +0000 (17:18 -0700)]
Merge tag 'x86-irq-2022-05-23' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 PCI irq routing updates from Thomas Gleixner:
- Cleanup and robustify the PCI interrupt routing table handling
including proper range checks
- Add support for Intel 82378ZB/82379AB, SiS85C497 PIRQ routers
- Fix the ALi M1487 router handling
- Handle the IRT routing table format in AMI BIOSes correctly
* tag 'x86-irq-2022-05-23' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/PCI: Fix coding style in PIRQ table verification
x86/PCI: Fix ALi M1487 (IBC) PIRQ router link value interpretation
x86/PCI: Add $IRT PIRQ routing table support
x86/PCI: Handle PIRQ routing tables with no router device given
x86/PCI: Add PIRQ routing table range checks
x86/PCI: Add support for the SiS85C497 PIRQ router
x86/PCI: Disambiguate SiS85C503 PIRQ router code entities
x86/PCI: Handle IRQ swizzling with PIRQ routers
x86/PCI: Also match function number in $PIR table
x86/PCI: Include function number in $PIR table dump
x86/PCI: Show the physical address of the $PIR table
Linus Torvalds [Tue, 24 May 2022 00:05:55 +0000 (17:05 -0700)]
Merge tag 'timers-core-2022-05-23' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull timer and timekeeping updates from Thomas Gleixner:
- Expose CLOCK_TAI to instrumentation to aid with TSN debugging.
- Ensure that the clockevent is stopped when there is no timer armed to
avoid pointless wakeups.
- Make the sched clock frequency handling and rounding consistent.
- Provide a better debugobject hint for delayed works. The timer
callback is always the same, which makes it difficult to identify the
underlying work. Use the work function as a hint instead.
- Move the timer specific sysctl code into the timer subsystem.
- The usual set of improvements and cleanups
* tag 'timers-core-2022-05-23' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
timers: Provide a better debugobjects hint for delayed works
time/sched_clock: Fix formatting of frequency reporting code
time/sched_clock: Use Hz as the unit for clock rate reporting below 4kHz
time/sched_clock: Round the frequency reported to nearest rather than down
timekeeping: Consolidate fast timekeeper
timekeeping: Annotate ktime_get_boot_fast_ns() with data_race()
timers/nohz: Switch to ONESHOT_STOPPED in the low-res handler when the tick is stopped
timekeeping: Introduce fast accessor to clock tai
tracing/timer: Add missing argument documentation of trace points
clocksource: Replace cpumask_weight() with cpumask_empty()
timers: Move timer sysctl into the timer code
clockevents: Use dedicated list iterator variable
timers: Simplify calc_index()
timers: Initialize base::next_expiry_recalc in timers_prepare_cpu()
Linus Torvalds [Mon, 23 May 2022 23:58:49 +0000 (16:58 -0700)]
Merge tag 'irq-core-2022-05-23' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull interrupt handling updates from Thomas Gleixner:
"Core code:
- Make the managed interrupts more robust by shutting them down in
the core code when the assigned affinity mask does not contain
online CPUs.
- Make the irq simulator chip work on RT
- A small set of cpumask and power manageent cleanups
Drivers:
- A set of changes which mark GPIO interrupt chips immutable to
prevent the GPIO subsystem from modifying it under the hood. This
provides the necessary infrastructure and converts a set of GPIO
and pinctrl drivers over.
- A set of changes to make the pseudo-NMI handling for GICv3 more
robust: a missing barrier and consistent handling of the priority
mask.
- Another set of GICv3 improvements and fixes, but nothing
outstanding
- The usual set of improvements and cleanups all over the place
- No new irqchip drivers and not even a new device tree binding!
100+ interrupt chips are truly enough"
* tag 'irq-core-2022-05-23' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (39 commits)
irqchip: Add Kconfig symbols for sunxi drivers
irqchip/gic-v3: Fix priority mask handling
irqchip/gic-v3: Refactor ISB + EOIR at ack time
irqchip/gic-v3: Ensure pseudo-NMIs have an ISB between ack and handling
genirq/irq_sim: Make the irq_work always run in hard irq context
irqchip/armada-370-xp: Do not touch Performance Counter Overflow on A375, A38x, A39x
irqchip/gic: Improved warning about incorrect type
irqchip/csky: Return true/false (not 1/0) from bool functions
irqchip/imx-irqsteer: Add runtime PM support
irqchip/imx-irqsteer: Constify irq_chip struct
irqchip/armada-370-xp: Enable MSI affinity configuration
irqchip/aspeed-scu-ic: Fix irq_of_parse_and_map() return value
irqchip/aspeed-i2c-ic: Fix irq_of_parse_and_map() return value
irqchip/sun6i-r: Use NULL for chip_data
irqchip/xtensa-mx: Fix initial IRQ affinity in non-SMP setup
irqchip/exiu: Fix acknowledgment of edge triggered interrupts
irqchip/gic-v3: Claim iomem resources
dt-bindings: interrupt-controller: arm,gic-v3: Make the v2 compat requirements explicit
irqchip/gic-v3: Relax polling of GIC{R,D}_CTLR.RWP
irqchip/gic-v3: Detect LPI invalidation MMIO registers
...
Linus Torvalds [Mon, 23 May 2022 23:55:36 +0000 (16:55 -0700)]
Merge tag 'smp-core-2022-05-23' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull CPU hotplug updates from Thomas Gleixner:
- Initialize the per-CPU structures during early boot so that the state
is consistent from the very beginning.
- Make the virtualization hotplug state handling more robust and let
the core bringup CPUs which timed out in an earlier attempt again.
- Make the x86/xen CPU state tracking consistent on a failed online
attempt, so a consecutive bringup does not fall over the inconsistent
state.
* tag 'smp-core-2022-05-23' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
cpu/hotplug: Initialise all cpuhp_cpu_state structs earlier
cpu/hotplug: Allow the CPU in CPU_UP_PREPARE state to be brought up again.
x86/xen: Allow to retry if cpu_initialize_context() failed.
Linus Torvalds [Mon, 23 May 2022 23:37:35 +0000 (16:37 -0700)]
Merge tag 'core-core-2022-05-23' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull irqpoll update from Thomas Gleixner:
"A single update for irqpoll:
Ensure that a raised soft interrupt is handled after pulling the
blk_cpu_iopoll backlog from a unplugged CPU. This prevents that the
CPU which runs that code reaches idle with soft interrupts pending"
* tag 'core-core-2022-05-23' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
lib/irq_poll: Prevent softirq pending leak in irq_poll_cpu_dead()
Linus Torvalds [Mon, 23 May 2022 21:36:45 +0000 (14:36 -0700)]
Merge tag 'zonefs-5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/zonefs
Pull zonefs updates from Damien Le Moal:
"This improves zonefs open sequential file accounting and adds
accounting for active sequential files to allow the user to handle the
maximum number of active zones of an NVMe ZNS drive.
sysfs attributes for both open and active sequential files are also
added to facilitate access to this information from applications
without resorting to inspecting the block device limits"
* tag 'zonefs-5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/zonefs:
documentation: zonefs: Document sysfs attributes
documentation: zonefs: Cleanup the mount options section
zonefs: Add active seq file accounting
zonefs: Export open zone resource information through sysfs
zonefs: Always do seq file write open accounting
zonefs: Rename super block information fields
zonefs: Fix management of open zones
zonefs: Clear inode information flags on inode creation
Linus Torvalds [Mon, 23 May 2022 21:14:50 +0000 (14:14 -0700)]
Merge tag 'ata-5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/libata
Pull ata updates from Damien Le Moal:
"For this cycle, the libata.force kernel parameter changes stand out.
Beside that, some small cleanups in various drivers. In more detail:
- Changes to the pata_mpc52xx driver in preparation for powerpc's
asm/prom.h cleanup, from Christophe.
- Improved ATA command allocation, from John.
- Various small cleanups to the pata_via, pata_sil680, pata_ftide010,
sata_gemini, ahci_brcm drivers and to libata-core, from Sergey,
Diego, Ruyi, Mighao and Jiabing.
- Add support for the RZ/G2H SoC to the rcar-sata driver, from Lad.
- AHCI RAID ID cleanup, from Dan.
- Improvement to the libata.force kernel parameter to allow most
horkage flags to be manually forced for debugging drive issues in
the field without needing recompiling a kernel, from me"
* tag 'ata-5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/libata:
ata: pata_ftide010: Remove unneeded ERROR check before clk_disable_unprepare
doc: admin-guide: Update libata kernel parameters
ata: libata-core: Allow forcing most horkage flags
ata: libata-core: Improve link flags forced settings
ata: libata-core: Refactor force_tbl definition
ata: libata-core: cleanup ata_device_blacklist
ata: simplify the return expression of brcm_ahci_remove
ata: Make use of the helper function devm_platform_ioremap_resource()
ata: libata-core: replace "its" with "it is"
ahci: Add a generic 'controller2' RAID id
dt-bindings: ata: renesas,rcar-sata: Add r8a774e1 support
ata: pata_via: fix sloppy typing in via_do_set_mode()
ata: pata_sil680: fix result type of sil680_sel{dev|reg}()
ata: libata-core: fix parameter type in ata_xfer_mode2shift()
libata: Improve ATA queued command allocation
ata: pata_mpc52xx: Prepare cleanup of powerpc's asm/prom.h
Linus Torvalds [Mon, 23 May 2022 21:04:14 +0000 (14:04 -0700)]
Merge tag 'for-5.19/drivers-2022-05-22' of git://git.kernel.dk/linux-block
Pull block driver updates from Jens Axboe:
"Here are the driver updates queued up for 5.19. This contains:
- NVMe pull requests via Christoph:
- tighten the PCI presence check (Stefan Roese)
- fix a potential NULL pointer dereference in an error path (Kyle
Miller Smith)
- fix interpretation of the DMRSL field (Tom Yan)
- relax the data transfer alignment (Keith Busch)
- verbose error logging improvements (Max Gurtovoy, Chaitanya
Kulkarni)
- misc cleanups (Chaitanya Kulkarni, Christoph)
- set non-mdts limits in nvme_scan_work (Chaitanya Kulkarni)
- add support for TP4084 - Time-to-Ready Enhancements (Christoph)
- MD pull request via Song:
- Improve annotation in raid5 code, by Logan Gunthorpe
- Support MD_BROKEN flag in raid-1/5/10, by Mariusz Tkaczyk
- Other small fixes/cleanups
- null_blk series making the configfs side much saner (Damien)
- Various minor drbd cleanups and fixes (Haowen, Uladzislau, Jiapeng,
Arnd, Cai)
- Avoid using the system workqueue (and hence flushing it) in rnbd
(Jack)
- Avoid using the system workqueue (and hence flushing it) in aoe
(Tetsuo)
- Series fixing discard_alignment issues in drivers (Christoph)
- Small series fixing drivers poking at disk->part0 for openers
information (Christoph)
- Series fixing deadlocks in loop (Christoph, Tetsuo)
- Remove loop.h and add SPDX headers (Christoph)
- Various fixes and cleanups (Julia, Xie, Yu)"
* tag 'for-5.19/drivers-2022-05-22' of git://git.kernel.dk/linux-block: (72 commits)
mtip32xx: fix typo in comment
nvme: set non-mdts limits in nvme_scan_work
nvme: add support for TP4084 - Time-to-Ready Enhancements
nvme: split the enum used for various register constants
nbd: Fix hung on disconnect request if socket is closed before
nvme-fabrics: add a request timeout helper
nvme-pci: harden drive presence detect in nvme_dev_disable()
nvme-pci: fix a NULL pointer dereference in nvme_alloc_admin_tags
nvme: mark internal passthru request RQF_QUIET
nvme: remove unneeded include from constants file
nvme: add missing status values to verbose logging
nvme: set dma alignment to dword
nvme: fix interpretation of DMRSL
loop: remove most the top-of-file boilerplate comment from the UAPI header
loop: remove most the top-of-file boilerplate comment
loop: add a SPDX header
loop: remove loop.h
block: null_blk: Improve device creation with configfs
block: null_blk: Cleanup messages
block: null_blk: Cleanup device creation and deletion
...
Linus Torvalds [Mon, 23 May 2022 20:56:39 +0000 (13:56 -0700)]
Merge tag 'for-5.19/block-2022-05-22' of git://git.kernel.dk/linux-block
Pull block updates from Jens Axboe:
"Here are the core block changes for 5.19. This contains:
- blk-throttle accounting fix (Laibin)
- Series removing redundant assignments (Michal)
- Expose bio cache via the bio_set, so that DM can use it (Mike)
- Finish off the bio allocation interface cleanups by dealing with
the weirdest member of the family. bio_kmalloc combines a kmalloc
for the bio and bio_vecs with a hidden bio_init call and magic
cleanup semantics (Christoph)
- Clean up the block layer API so that APIs consumed by file systems
are (almost) only struct block_device based, so that file systems
don't have to poke into block layer internals like the
request_queue (Christoph)
- Clean up the blk_execute_rq* API (Christoph)
- Clean up various lose end in the blk-cgroup code to make it easier
to follow in preparation of reworking the blkcg assignment for bios
(Christoph)
- Fix use-after-free issues in BFQ when processes with merged queues
get moved to different cgroups (Jan)
- BFQ fixes (Jan)
- Various fixes and cleanups (Bart, Chengming, Fanjun, Julia, Ming,
Wolfgang, me)"
* tag 'for-5.19/block-2022-05-22' of git://git.kernel.dk/linux-block: (83 commits)
blk-mq: fix typo in comment
bfq: Remove bfq_requeue_request_body()
bfq: Remove superfluous conversion from RQ_BIC()
bfq: Allow current waker to defend against a tentative one
bfq: Relax waker detection for shared queues
blk-cgroup: delete rcu_read_lock_held() WARN_ON_ONCE()
blk-throttle: Set BIO_THROTTLED when bio has been throttled
blk-cgroup: Remove unnecessary rcu_read_lock/unlock()
blk-cgroup: always terminate io.stat lines
block, bfq: make bfq_has_work() more accurate
block, bfq: protect 'bfqd->queued' by 'bfqd->lock'
block: cleanup the VM accounting in submit_bio
block: Fix the bio.bi_opf comment
block: reorder the REQ_ flags
blk-iocost: combine local_stat and desc_stat to stat
block: improve the error message from bio_check_eod
block: allow passing a NULL bdev to bio_alloc_clone/bio_init_clone
block: remove superfluous calls to blkcg_bio_issue_init
kthread: unexport kthread_blkcg
blk-cgroup: cleanup blkcg_maybe_throttle_current
...
Linus Torvalds [Mon, 23 May 2022 20:52:14 +0000 (13:52 -0700)]
Merge tag 'for-5.19/cdrom-2022-05-22' of git://git.kernel.dk/linux-block
Pull cdrom updates from Jens Axboe:
"Removal of unused code and documentation updates"
* tag 'for-5.19/cdrom-2022-05-22' of git://git.kernel.dk/linux-block:
cdrom: remove obsolete TODO list
block: remove last remaining traces of IDE documentation
cdrom: mark CDROMGETSPINDOWN/CDROMSETSPINDOWN obsolete
cdrom: remove the unused driver specific disc change ioctl
cdrom: make EXPORT_SYMBOL follow exported function
Linus Torvalds [Mon, 23 May 2022 20:48:23 +0000 (13:48 -0700)]
Merge tag 'for-5.19/writeback-2022-05-22' of git://git.kernel.dk/linux-block
Pull writeback fix from Jens Axboe:
"A single writeback fix that didn't belong in any other branch,
correcting the number of skipped pages"
* tag 'for-5.19/writeback-2022-05-22' of git://git.kernel.dk/linux-block:
fs-writeback: writeback_sb_inodes：Recalculate 'wrote' according skipped pages
Linus Torvalds [Mon, 23 May 2022 20:06:15 +0000 (13:06 -0700)]
Merge tag 'for-5.19/io_uring-passthrough-2022-05-22' of git://git.kernel.dk/linux-block
Pull io_uring NVMe command passthrough from Jens Axboe:
"On top of everything else, this adds support for passthrough for
io_uring.
The initial feature for this is NVMe passthrough support, which allows
non-filesystem based IO commands and admin commands.
To support this, io_uring grows support for SQE and CQE members that
are twice as big, allowing to pass in a full NVMe command without
having to copy data around. And to complete with more than just a
single 32-bit value as the output"
* tag 'for-5.19/io_uring-passthrough-2022-05-22' of git://git.kernel.dk/linux-block: (22 commits)
io_uring: cleanup handling of the two task_work lists
nvme: enable uring-passthrough for admin commands
nvme: helper for uring-passthrough checks
blk-mq: fix passthrough plugging
nvme: add vectored-io support for uring-cmd
nvme: wire-up uring-cmd support for io-passthru on char-device.
nvme: refactor nvme_submit_user_cmd()
block: wire-up support for passthrough plugging
fs,io_uring: add infrastructure for uring-cmd
io_uring: support CQE32 for nop operation
io_uring: enable CQE32
io_uring: support CQE32 in /proc info
io_uring: add tracing for additional CQE32 fields
io_uring: overflow processing for CQE32
io_uring: flush completions for CQE32
io_uring: modify io_get_cqe for CQE32
io_uring: add CQE32 completion processing
io_uring: add CQE32 setup processing
io_uring: change ring size calculation for CQE32
io_uring: store add. return values for CQE32
...
Linus Torvalds [Mon, 23 May 2022 19:51:04 +0000 (12:51 -0700)]
Merge tag 'for-5.19/io_uring-net-2022-05-22' of git://git.kernel.dk/linux-block
Pull io_uring 'more data in socket' support from Jens Axboe:
"To be able to fully utilize the 'poll first' support in the core
io_uring branch, it's advantageous knowing if the socket was empty
after a receive. This adds support for that"
* tag 'for-5.19/io_uring-net-2022-05-22' of git://git.kernel.dk/linux-block:
io_uring: return hint on whether more data is available after receive
tcp: pass back data left in socket after receive
Linus Torvalds [Mon, 23 May 2022 19:42:33 +0000 (12:42 -0700)]
Merge tag 'for-5.19/io_uring-socket-2022-05-22' of git://git.kernel.dk/linux-block
Pull io_uring socket() support from Jens Axboe:
"This adds support for socket(2) for io_uring. This is handy when using
direct / registered file descriptors with io_uring.
Outside of those two patches, a small series from Dylan on top that
improves the tracing by providing a text representation of the opcode
rather than needing to decode this by reading the header file every
time.
That sits in this branch as it was the last opcode added (until it
wasn't...)"
* tag 'for-5.19/io_uring-socket-2022-05-22' of git://git.kernel.dk/linux-block:
io_uring: use the text representation of ops in trace
io_uring: rename op -> opcode
io_uring: add io_uring_get_opcode
io_uring: add type to op enum
io_uring: add socket(2) support
net: add __sys_socket_file()
Linus Torvalds [Mon, 23 May 2022 19:30:30 +0000 (12:30 -0700)]
Merge tag 'for-5.19/io_uring-xattr-2022-05-22' of git://git.kernel.dk/linux-block
Pull io_uring xattr support from Jens Axboe:
"Support for the xattr variants"
* tag 'for-5.19/io_uring-xattr-2022-05-22' of git://git.kernel.dk/linux-block:
io_uring: cleanup error-handling around io_req_complete
io_uring: fix trace for reduced sqe padding
io_uring: add fgetxattr and getxattr support
io_uring: add fsetxattr and setxattr support
fs: split off do_getxattr from getxattr
fs: split off setxattr_copy and do_setxattr function from setxattr
Linus Torvalds [Mon, 23 May 2022 19:22:49 +0000 (12:22 -0700)]
Merge tag 'for-5.19/io_uring-2022-05-22' of git://git.kernel.dk/linux-block
Pull io_uring updates from Jens Axboe:
"Here are the main io_uring changes for 5.19. This contains:
- Fixes for sparse type warnings (Christoph, Vasily)
- Support for multi-shot accept (Hao)
- Support for io_uring managed fixed files, rather than always
needing the applicationt o manage the indices (me)
- Fix for a spurious poll wakeup (Dylan)
- CQE overflow fixes (Dylan)
- Support more types of cancelations (me)
- Support for co-operative task_work signaling, rather than always
forcing an IPI (me)
- Support for doing poll first when appropriate, rather than always
attempting a transfer first (me)
- Provided buffer cleanups and support for mapped buffers (me)
- Improve how io_uring handles inflight SCM files (Pavel)
- Speedups for registered files (Pavel, me)
- Organize the completion data in a struct in io_kiocb rather than
keep it in separate spots (Pavel)
- task_work improvements (Pavel)
- Cleanup and optimize the submission path, in general and for
handling links (Pavel)
- Speedups for registered resource handling (Pavel)
- Support sparse buffers and file maps (Pavel, me)
- Various fixes and cleanups (Almog, Pavel, me)"
* tag 'for-5.19/io_uring-2022-05-22' of git://git.kernel.dk/linux-block: (111 commits)
io_uring: fix incorrect __kernel_rwf_t cast
io_uring: disallow mixed provided buffer group registrations
io_uring: initialize io_buffer_list head when shared ring is unregistered
io_uring: add fully sparse buffer registration
io_uring: use rcu_dereference in io_close
io_uring: consistently use the EPOLL* defines
io_uring: make apoll_events a __poll_t
io_uring: drop a spurious inline on a forward declaration
io_uring: don't use ERR_PTR for user pointers
io_uring: use a rwf_t for io_rw.flags
io_uring: add support for ring mapped supplied buffers
io_uring: add io_pin_pages() helper
io_uring: add buffer selection support to IORING_OP_NOP
io_uring: fix locking state for empty buffer group
io_uring: implement multishot mode for accept
io_uring: let fast poll support multishot
io_uring: add REQ_F_APOLL_MULTISHOT for requests
io_uring: add IORING_ACCEPT_MULTISHOT for accept
io_uring: only wake when the correct events are set
io_uring: avoid io-wq -EAGAIN looping for !IOPOLL
...
- RCU-tasks updates, including some -rt fixups, handling of systems
with sparse CPU numbering, and a fix for a boot-time race-condition
failure
- Put SRCU on a memory diet in order to reduce the size of the
srcu_struct structure
- Torture-test updates fixing some bugs in tests and closing some
testing holes
- Torture-test updates for the RCU tasks flavors, most notably ensuring
that building rcutorture and friends does not change the
RCU-tasks-related Kconfig options
- Torture-test scripting updates
- Expedited grace-period updates, most notably providing
milliseconds-scale (not all that) soft real-time response from
synchronize_rcu_expedited().
This is also the first time in almost 30 years of RCU that someone
other than me has pushed for a reduction in the RCU CPU stall-warning
timeout, in this case by more than three orders of magnitude from 21
seconds to 20 milliseconds. This tighter timeout applies only to
expedited grace periods
* tag 'rcu.2022.05.19a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu: (80 commits)
rcu: Move expedited grace period (GP) work to RT kthread_worker
rcu: Introduce CONFIG_RCU_EXP_CPU_STALL_TIMEOUT
srcu: Drop needless initialization of sdp in srcu_gp_start()
srcu: Prevent expedited GPs and blocking readers from consuming CPU
srcu: Add contention check to call_srcu() srcu_data ->lock acquisition
srcu: Automatically determine size-transition strategy at boot
rcutorture: Make torture.sh allow for --kasan
rcutorture: Make torture.sh refscale and rcuscale specify Tasks Trace RCU
rcutorture: Make kvm.sh allow more memory for --kasan runs
torture: Save "make allmodconfig" .config file
scftorture: Remove extraneous "scf" from per_version_boot_params
rcutorture: Adjust scenarios' Kconfig options for CONFIG_PREEMPT_DYNAMIC
torture: Enable CSD-lock stall reports for scftorture
torture: Skip vmlinux check for kvm-again.sh runs
scftorture: Adjust for TASKS_RCU Kconfig option being selected
rcuscale: Allow rcuscale without RCU Tasks Rude/Trace
rcuscale: Allow rcuscale without RCU Tasks
refscale: Allow refscale without RCU Tasks Rude/Trace
refscale: Allow refscale without RCU Tasks
rcutorture: Allow specifying per-scenario stat_interval
...
Linus Torvalds [Mon, 23 May 2022 18:43:44 +0000 (11:43 -0700)]
Merge tag 'lkmm.2022.05.20a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu
Pull LKMM update from Paul McKenney:
"This updates the klitmus7 compatibility table to indicate that
herdtools7 7.56.1 or better is required for Linux kernel v5.17 or
later"
* tag 'lkmm.2022.05.20a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu:
tools/memory-model/README: Update klitmus7 compat table
Linus Torvalds [Mon, 23 May 2022 18:33:25 +0000 (11:33 -0700)]
Merge tag 'nolibc.2022.05.20a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu
Pull nolibc library updates from Paul McKenney:
"This adds a number of library functions and splits this library into
multiple files"
* tag 'nolibc.2022.05.20a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu: (61 commits)
tools/nolibc/string: Implement `strdup()` and `strndup()`
tools/nolibc/string: Implement `strnlen()`
tools/nolibc/stdlib: Implement `malloc()`, `calloc()`, `realloc()` and `free()`
tools/nolibc/types: Implement `offsetof()` and `container_of()` macro
tools/nolibc/sys: Implement `mmap()` and `munmap()`
tools/nolibc: i386: Implement syscall with 6 arguments
tools/nolibc: Remove .global _start from the entry point code
tools/nolibc: Replace `asm` with `__asm__`
tools/nolibc: x86-64: Update System V ABI document link
tools/nolibc/stdlib: only reference the external environ when inlined
tools/nolibc/string: do not use __builtin_strlen() at -O0
tools/nolibc: add the nolibc subdir to the common Makefile
tools/nolibc: add a makefile to install headers
tools/nolibc/types: add poll() and waitpid() flag definitions
tools/nolibc/sys: add syscall definition for getppid()
tools/nolibc/string: add strcmp() and strncmp()
tools/nolibc/stdio: add support for '%p' to vfprintf()
tools/nolibc/stdlib: add a simple getenv() implementation
tools/nolibc/stdio: make printf(%s) accept NULL
tools/nolibc/stdlib: implement abort()
...
Linus Torvalds [Mon, 23 May 2022 18:27:24 +0000 (11:27 -0700)]
Merge tag 'efi-next-for-v5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi
Pull EFI updates from Ard Biesheuvel:
- Allow runtime services to be re-enabled at boot on RT kernels.
- Provide access to secrets injected into the boot image by CoCo
hypervisors (COnfidential COmputing)
- Use DXE services on x86 to make the boot image executable after
relocation, if needed.
- Prefer mirrored memory for randomized allocations.
- Only randomize the placement of the kernel image on arm64 if the
loader has not already done so.
- Add support for obtaining the boot hartid from EFI on RISC-V.
* tag 'efi-next-for-v5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi:
riscv/efi_stub: Add support for RISCV_EFI_BOOT_PROTOCOL
efi: stub: prefer mirrored memory for randomized allocations
efi/arm64: libstub: run image in place if randomized by the loader
efi: libstub: pass image handle to handle_kernel_image()
efi: x86: Set the NX-compatibility flag in the PE header
efi: libstub: ensure allocated memory to be executable
efi: libstub: declare DXE services table
efi: Add missing prototype for efi_capsule_setup_info
docs: security: Add secrets/coco documentation
efi: Register efi_secret platform device if EFI secret area is declared
virt: Add efi_secret module to expose confidential computing secrets
efi: Save location of EFI confidential computing area
efi: Allow to enable EFI runtime services by default on RT
Borislav Petkov [Mon, 23 May 2022 08:19:30 +0000 (10:19 +0200)]
Merge branches 'edac-misc' and 'edac-alloc-cleanup' into edac-updates-for-v5.19
Combine all collected EDAC changes for submission into v5.19:
* edac-misc:
EDAC/xgene: Fix typo processsors -> processors
EDAC/i5100: Remove unused inline function i5100_nrecmema_dm_buf_id()
EDAC/ghes: Change ghes_hw from global to static
EDAC/armada_xp: Use devm_platform_ioremap_resource()
EDAC/synopsys: Add a SPDX identifier
EDAC/synopsys: Add driver support for i.MX platforms
EDAC/dmc520: Don't print an error for each unconfigured interrupt line
efi/cper: Reformat CPER memory error location to more readable
EDAC/ghes: Unify CPER memory error location reporting
efi/cper: Add a cper_mem_err_status_str() to decode error description
powerpc/85xx: Remove fsl,85... bindings
* edac-alloc-cleanup:
EDAC: Use kcalloc()
EDAC/mc: Get rid of edac_align_ptr()
EDAC/device: Sanitize edac_device_alloc_ctl_info() definition
EDAC/device: Get rid of the silly one-shot memory allocation in edac_device_alloc_ctl_info()
EDAC/pci: Get rid of the silly one-shot memory allocation in edac_pci_alloc_ctl_info()
EDAC/mc: Get rid of silly one-shot struct allocation in edac_mc_alloc()
David Howells [Sat, 21 May 2022 07:18:28 +0000 (08:18 +0100)]
afs: Fix afs_getattr() to refetch file status if callback break occurred
If a callback break occurs (change notification), afs_getattr() needs to
issue an FS.FetchStatus RPC operation to update the status of the file
being examined by the stat-family of system calls.
Fix afs_getattr() to do this if AFS_VNODE_CB_PROMISED has been cleared
on a vnode by a callback break. Skip this if AT_STATX_DONT_SYNC is set.
This can be tested by appending to a file on one AFS client and then
using "stat -L" to examine its length on a machine running kafs. This
can also be watched through tracing on the kafs machine. The callback
break is seen:
Linus Torvalds [Sun, 22 May 2022 18:04:38 +0000 (08:04 -1000)]
Merge branch 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
Pull i2c fixes from Wolfram Sang:
"Some I2C driver bugfixes for 5.18. Nothing spectacular but worth
fixing"
* 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
drivers: i2c: thunderx: Allow driver to work with ACPI defined TWSI controllers
i2c: ismt: Provide a DMA buffer for Interrupt Cause Logging
i2c: mt7621: fix missing clk_disable_unprepare() on error in mtk_i2c_probe()
Linus Torvalds [Sun, 22 May 2022 00:14:02 +0000 (14:14 -1000)]
Merge tag 'perf-tools-fixes-for-v5.18-2022-05-21' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux
Pull perf tools fixes from Arnaldo Carvalho de Melo:
- Fix and validate CPU map inputs in synthetic PERF_RECORD_STAT events
in 'perf stat'.
- Fix x86's arch__intr_reg_mask() for the hybrid platform.
- Address 'perf bench numa' compiler error on s390.
- Fix check for btf__load_from_kernel_by_id() in libbpf.
- Fix "all PMU test" 'perf test' to skip hv_24x7/hv_gpci tests on
powerpc.
- Fix session topology test to skip the test in guest environment.
- Skip BPF 'perf test' if clang is not present.
- Avoid shell test description infinite loop in 'perf test'.
- Fix Intel LBR callstack entries and nr print message.
* tag 'perf-tools-fixes-for-v5.18-2022-05-21' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux:
perf session: Fix Intel LBR callstack entries and nr print message
perf test bpf: Skip test if clang is not present
perf test session topology: Fix test to skip the test in guest environment
perf bench numa: Address compiler error on s390
perf test: Avoid shell test description infinite loop
perf regs x86: Fix arch__intr_reg_mask() for the hybrid platform
perf test: Fix "all PMU test" to skip hv_24x7/hv_gpci tests on powerpc
perf stat: Fix and validate CPU map inputs in synthetic PERF_RECORD_STAT events
perf build: Fix check for btf__load_from_kernel_by_id() in libbpf
Linus Torvalds [Sat, 21 May 2022 23:58:43 +0000 (13:58 -1000)]
Merge tag 'input-for-v5.18-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input fixes from Dmitry Torokhov:
"A small fixup to ili210x touchscreen driver, and updated maintainer
entry for the device tree binding of Mediatek 6779 keypad:
- fix reset timing of Ilitek touchscreens
- update maintainer entry of DT binding of Mediatek 6779 keypad"
* tag 'input-for-v5.18-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: ili210x - use one common reset implementation
Input: ili210x - fix reset timing
dt-bindings: input: mediatek,mt6779-keypad: update maintainer
Linus Torvalds [Sat, 21 May 2022 23:31:50 +0000 (13:31 -1000)]
Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
"Two patches, both in drivers.
The iscsi one is fixing the cpumask issue you commented on and the ufs
one is a late arriving fix for conditions that can occur in Host
Performance Booster reads"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
scsi: ufs: core: Fix referencing invalid rsp field
scsi: target: Fix incorrect use of cpumask_t
Chengdong Li [Tue, 17 May 2022 01:57:26 +0000 (09:57 +0800)]
perf session: Fix Intel LBR callstack entries and nr print message
When generating callstack information from branch_stack(Intel LBR), the
actual number of callstack entry should be bigger than the number of
branch_stack, for example:
branch_stack records:
B() -> C()
A() -> B()
converted callstack records should be:
C()
B()
A()
though, the number of callstack equals
to the number of branch stack plus 1.
This patch fixes above issue in branch_stack__printf(). For example,
# echo 'scale=2000; 4*a(1)' > cmd
# perf record --call-graph lbr bc -l < cmd
Before applying this patch, `perf script -D` output:
Enabling verbose option provided debug logs which says clang/llvm needs
to be installed. Snippet of verbose logs:
<<>>
42.2: BPF pinning :
--- start ---
test child forked, pid 61423
ERROR: unable to find clang.
Hint: Try to install latest clang/llvm to support BPF.
Check your $PATH
<<logs_here>>
Failed to compile test case: 'Basic BPF llvm compile'
Unable to get BPF object, fix kbuild first
test child finished with -1
---- end ----
BPF filter subtest 2: FAILED!
<<>>
Here subtests, "BPF pinning" and "BPF prologue generation" failed and
logs shows clang/llvm is needed. After installing clang, testcase
passes.
Reason on why subtest failure happens though logs has proper debug
information:
Main function __test__bpf calls test_llvm__fetch_bpf_obj by
passing 4th argument as true ( 4th arguments maps to parameter
"force" in test_llvm__fetch_bpf_obj ). But this will cause
test_llvm__fetch_bpf_obj to skip the check for clang/llvm.
Snippet of code part which checks for clang based on
parameter "force" in test_llvm__fetch_bpf_obj:
<<>>
if (!force && (!llvm_param.user_set_param &&
<<>>
Since force is set to "false", test won't get skipped and fails to
compile test case. The BPF code compilation needs clang, So pass the
fourth argument as "false" and also skip the test if reason for return
is "TEST_SKIP"
Athira Rajeev [Wed, 11 May 2022 11:49:59 +0000 (17:19 +0530)]
perf test session topology: Fix test to skip the test in guest environment
The session topology test fails in powerpc pSeries platform.
Test logs:
<<>>
Session topology : FAILED!
<<>>
This testcases tests cpu topology by checking the core_id and socket_id
stored in perf_env from perf session. The data from perf session is
compared with the cpu topology information from
"/sys/devices/system/cpu/cpuX/topology" like core_id,
physical_package_id.
In case of virtual environment, detail like physical_package_id is
restricted to be exposed. Hence physical_package_id is set to -1. The
testcase fails on such platforms since socket_id can't be fetched from
topology info.
Skip the testcase in powerpc if physical_package_id returns -1.
Reviewed-by: Kajol Jain <kjain@linux.ibm.com> Signed-off-by: Athira Rajeev <atrajeev@linux.vnet.ibm.com>--- Tested-by: Disha Goel <disgoel@linux.vnet.ibm.com> Acked-by: Ian Rogers <irogers@google.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Madhavan Srinivasan <maddy@linux.vnet.ibm.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Nageswara R Sastry <rnsastry@linux.ibm.com> Cc: linuxppc-dev@lists.ozlabs.org Link: https://lore.kernel.org/r/20220511114959.84002-1-atrajeev@linux.vnet.ibm.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Thomas Richter [Fri, 20 May 2022 08:11:58 +0000 (10:11 +0200)]
perf bench numa: Address compiler error on s390
The compilation on s390 results in this error:
# make DEBUG=y bench/numa.o
...
bench/numa.c: In function ‘__bench_numa’:
bench/numa.c:1749:81: error: ‘%d’ directive output may be truncated
writing between 1 and 11 bytes into a region of size between
10 and 20 [-Werror=format-truncation=]
1749 | snprintf(tname, sizeof(tname), "process%d:thread%d", p, t);
^~
...
bench/numa.c:1749:64: note: directive argument in the range
[-2147483647, 2147483646]
...
#
The maximum length of the %d replacement is 11 characters because of the
negative sign. Therefore extend the array by two more characters.
Output after:
# make DEBUG=y bench/numa.o > /dev/null 2>&1; ll bench/numa.o
-rw-r--r-- 1 root root 418320 May 19 09:11 bench/numa.o
#
Fixes: 7ee6c3936fc83404 ("perf bench numa: Avoid possible truncation when using snprintf()") Suggested-by: Namhyung Kim <namhyung@gmail.com> Signed-off-by: Thomas Richter <tmricht@linux.ibm.com> Cc: Heiko Carstens <hca@linux.ibm.com> Cc: Sumanth Korikkar <sumanthk@linux.ibm.com> Cc: Sven Schnelle <svens@linux.ibm.com> Cc: Vasily Gorbik <gor@linux.ibm.com> Link: https://lore.kernel.org/r/20220520081158.2990006-1-tmricht@linux.ibm.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Ian Rogers [Tue, 17 May 2022 20:41:44 +0000 (13:41 -0700)]
perf test: Avoid shell test description infinite loop
for_each_shell_test() is already strict in expecting tests to be files
and executable. It is sometimes possible when it iterates over all files
that it finds one that is executable and lacks a newline character. When
this happens the loop never terminates as it doesn't check for EOF.
Add the EOF check to make this loop at least bounded by the file size.
If the description is returned as NULL then also skip the test.
Signed-off-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Marco Elver <elver@google.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Riccardo Mancini <rickyman7@gmail.com> Cc: Sohaib Mohamed <sohaib.amhmd@gmail.com> Cc: Stephane Eranian <eranian@google.com> Link: https://lore.kernel.org/r/20220517204144.645913-1-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Kan Liang [Wed, 18 May 2022 14:51:25 +0000 (07:51 -0700)]
perf regs x86: Fix arch__intr_reg_mask() for the hybrid platform
The X86 specific arch__intr_reg_mask() is to check whether the kernel
and hardware can collect XMM registers. But it doesn't work on some
hybrid platform.
Without the patch on ADL-N:
$ perf record -I?
available registers: AX BX CX DX SI DI BP SP IP FLAGS CS SS R8 R9 R10
R11 R12 R13 R14 R15
The config of the test event doesn't contain the PMU information. The
kernel may fail to initialize it on the correct hybrid PMU and return
the wrong non-supported information.
Add the PMU information into the config for the hybrid platform. The
same register set is supported among different hybrid PMUs. Checking
the first available one is good enough.
With the patch on ADL-N:
$ perf record -I?
available registers: AX BX CX DX SI DI BP SP IP FLAGS CS SS R8 R9 R10
R11 R12 R13 R14 R15 XMM0 XMM1 XMM2 XMM3 XMM4 XMM5 XMM6 XMM7 XMM8 XMM9
XMM10 XMM11 XMM12 XMM13 XMM14 XMM15
Fixes: ed064674df3ebb6c ("perf regs x86: Add X86 specific arch__intr_reg_mask()") Reported-by: Ammy Yi <ammy.yi@intel.com> Signed-off-by: Kan Liang <kan.liang@linux.intel.com> Acked-by: Ian Rogers <irogers@google.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com> Link: https://lore.kernel.org/r/20220518145125.1494156-1-kan.liang@linux.intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Athira Rajeev [Fri, 20 May 2022 10:12:36 +0000 (15:42 +0530)]
perf test: Fix "all PMU test" to skip hv_24x7/hv_gpci tests on powerpc
"perf all PMU test" picks the input events from "perf list --raw-dump
pmu" list and runs "perf stat -e" for each of the event in the list. In
case of powerpc, the PowerVM environment supports events from hv_24x7
and hv_gpci PMU which is of example format like below:
The value for "?" needs to be filled in depending on system and
respective event. CPM_ADJUNCT_INST needs have core value and domain
value. hv_gpci event needs partition_id. Similarly, there are other
events for hv_24x7 and hv_gpci having "?" in event format. Hence skip
these events on powerpc platform since values like partition_id, domain
is specific to system and event.
Fixes: e3a9299da2a1da74 ("perf test: Workload test of all PMUs") Signed-off-by: Athira Jajeev <atrajeev@linux.vnet.ibm.com> Acked-by: Ian Rogers <irogers@google.com> Cc: Disha Goel <disgoel@linux.vnet.ibm.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Kajol Jain <kjain@linux.ibm.com> Cc: linuxppc-dev@lists.ozlabs.org Cc: Madhavan Srinivasan <maddy@linux.vnet.ibm.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Nageswara R Sastry <rnsastry@linux.ibm.com> Link: https://lore.kernel.org/r/20220520101236.17249-1-atrajeev@linux.vnet.ibm.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Jens Axboe [Sat, 21 May 2022 15:17:05 +0000 (09:17 -0600)]
io_uring: cleanup handling of the two task_work lists
Rather than pass in a bool for whether or not this work item needs to go
into the priority list or not, provide separate helpers for it. For most
use cases, this also then gets rid of the branch for non-priority task
work.
While at it, rename the prior_task_list to prio_task_list. Prior is
a confusing name for it, as it would seem to indicate that this is the
previous task_work list. prio makes it clear that this is a priority
task_work list.
Mika Westerberg [Wed, 27 Apr 2022 10:19:10 +0000 (13:19 +0300)]
i2c: ismt: Provide a DMA buffer for Interrupt Cause Logging
Before sending a MSI the hardware writes information pertinent to the
interrupt cause to a memory location pointed by SMTICL register. This
memory holds three double words where the least significant bit tells
whether the interrupt cause of master/target/error is valid. The driver
does not use this but we need to set it up because otherwise it will
perform DMA write to the default address (0) and this will cause an
IOMMU fault such as below:
DMAR: DRHD: handling fault status reg 2
DMAR: [DMA Write] Request device [00:12.0] PASID ffffffff fault addr 0
[fault reason 05] PTE Write access is not set
To prevent this from happening, provide a proper DMA buffer for this
that then gets mapped by the IOMMU accordingly.
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com> Reviewed-by: From: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Wolfram Sang <wsa@kernel.org>
Linus Torvalds [Sat, 21 May 2022 06:34:59 +0000 (20:34 -1000)]
Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull kvm fixes from Paolo Bonzini:
"ARM:
- Correctly expose GICv3 support even if no irqchip is created so
that userspace doesn't observe it changing pointlessly (fixing a
regression with QEMU)
- Don't issue a hypercall to set the id-mapped vectors when protected
mode is enabled (fix for pKVM in combination with CPUs affected by
Spectre-v3a)
x86 (five oneliners, of which the most interesting two are):
- a NULL pointer dereference on INVPCID executed with paging
disabled, but only if KVM is using shadow paging
- an incorrect bsearch comparison function which could truncate the
result and apply PMU event filtering incorrectly. This one comes
with a selftests update too"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
KVM: x86/mmu: fix NULL pointer dereference on guest INVPCID
KVM: x86: hyper-v: fix type of valid_bank_mask
KVM: Free new dirty bitmap if creating a new memslot fails
KVM: eventfd: Fix false positive RCU usage warning
selftests: kvm/x86: Verify the pmu event filter matches the correct event
selftests: kvm/x86: Add the helper function create_pmu_event_filter
kvm: x86/pmu: Fix the compare function used by the pmu event filter
KVM: arm64: Don't hypercall before EL2 init
KVM: arm64: vgic-v3: Consistently populate ID_AA64PFR0_EL1.GIC
KVM: x86/mmu: Update number of zapped pages even if page list is stable
Linus Torvalds [Sat, 21 May 2022 05:07:28 +0000 (19:07 -1000)]
Merge tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux
Pull clk fixes from Stephen Boyd:
"Three clk driver fixes to close out the release
- Fix a divider calculation breaking boot on Broadcom bcm2835
- Fix HDMI output on Tanix TX6 mini board by reverting a patch
- Fix clk_set_rate_range() calls on at91 by considering the range
while calculating the divisor"
* tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux:
clk: at91: generated: consider range when calculating best rate
Revert "clk: sunxi-ng: sun6i-rtc: Add support for H6"
clk: bcm2835: fix bcm2835_clock_choose_div
Linus Torvalds [Sat, 21 May 2022 04:58:37 +0000 (18:58 -1000)]
Merge tag 'drm-fixes-2022-05-21' of git://anongit.freedesktop.org/drm/drm
Pull drm fixes from Dave Airlie:
"Few final fixes for 5.18, one amdgpu, core dp mst leak fix, dma-buf
two fixes, and i915 has a few fixes, one for a regression on older
GM45 chipsets,
dma-buf:
- ioctl userspace use fix
- fix dma-buf sysfs name generation
core:
- dp/mst leak fix
amdgpu:
- suspend/resume regression fix
i915:
- fix for #5806: GPU hangs and display artifacts on Intel GM45
- reject DMC with out-of-spec MMIO
- correctly mark guilty contexts on GuC reset"
* tag 'drm-fixes-2022-05-21' of git://anongit.freedesktop.org/drm/drm:
drm/i915: Use i915_gem_object_ggtt_pin_ww for reloc_iomap
drm/amd: Don't reset dGPUs if the system is going to s2idle
drm/dp/mst: fix a possible memory leak in fetch_monitor_name()
dma-buf: fix use of DMA_BUF_SET_NAME_{A,B} in userspace
i915/guc/reset: Make __guc_reset_context aware of guilty engines
drm/i915/dmc: Add MMIO range restrictions
dma-buf: ensure unique directory name for dmabuf stats
Dave Airlie [Fri, 20 May 2022 20:00:48 +0000 (06:00 +1000)]
Merge tag 'drm-intel-fixes-2022-05-20' of git://anongit.freedesktop.org/drm/drm-intel into drm-fixes
- fix for #5806: GPU hangs and display artifacts on 5.18-rc3 on Intel GM45
- reject DMC with out-of-spec MMIO (Cc: stable)
- correctly mark guilty contexts on GuC reset.
Peter Zijlstra [Fri, 20 May 2022 18:38:06 +0000 (20:38 +0200)]
perf: Fix sys_perf_event_open() race against self
Norbert reported that it's possible to race sys_perf_event_open() such
that the looser ends up in another context from the group leader,
triggering many WARNs.
The move_group case checks for races against itself, but the
!move_group case doesn't, seemingly relying on the previous
group_leader->ctx == ctx check. However, that check is racy due to not
holding any locks at that time.
Therefore, re-check the result after acquiring locks and bailing
if they no longer match.
Additionally, clarify the not_move_group case from the
move_group-vs-move_group race.
Linus Torvalds [Fri, 20 May 2022 18:26:28 +0000 (08:26 -1000)]
Merge tag 'gpio-fixes-for-v5.18' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux
Pull gpio fixes from Bartosz Golaszewski:
- fix bitops logic in gpio-vf610
- return an error if the user tries to use inverted polarity in
gpio-mvebu
* tag 'gpio-fixes-for-v5.18' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux:
gpio: mvebu/pwm: Refuse requests with inverted polarity
gpio: gpio-vf610: do not touch other bits when set the target bit
Linus Torvalds [Fri, 20 May 2022 18:15:40 +0000 (08:15 -1000)]
Merge tag 'ceph-for-5.18-rc8' of https://github.com/ceph/ceph-client
Pull ceph fix from Ilya Dryomov:
"A fix for a nasty use-after-free, marked for stable"
* tag 'ceph-for-5.18-rc8' of https://github.com/ceph/ceph-client:
libceph: fix misleading ceph_osdc_cancel_request() comment
libceph: fix potential use-after-free on linger ping and resends
Linus Torvalds [Fri, 20 May 2022 18:09:00 +0000 (08:09 -1000)]
Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 fixes from Will Deacon:
"Three arm64 fixes for -rc8/final.
The MTE and stolen time fixes have been doing the rounds for a little
while, but review and testing feedback was ongoing until earlier this
week. The kexec fix showed up on Monday and addresses a failure
observed under Qemu.
Summary:
- Add missing write barrier to publish MTE tags before a pte update
- Fix kexec relocation clobbering its own data structures
- Fix stolen time crash if a timer IRQ fires during CPU hotplug"
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
arm64: mte: Ensure the cleared tags are visible before setting the PTE
arm64: kexec: load from kimage prior to clobbering
arm64: paravirt: Use RCU read locks to guard stolen_time
Paolo Bonzini [Fri, 20 May 2022 17:48:11 +0000 (13:48 -0400)]
KVM: x86/mmu: fix NULL pointer dereference on guest INVPCID
With shadow paging enabled, the INVPCID instruction results in a call
to kvm_mmu_invpcid_gva. If INVPCID is executed with CR0.PG=0, the
invlpg callback is not set and the result is a NULL pointer dereference.
Fix it trivially by checking for mmu->invlpg before every call.
There are other possibilities:
- check for CR0.PG, because KVM (like all Intel processors after P5)
flushes guest TLB on CR0.PG changes so that INVPCID/INVLPG are a
nop with paging disabled
- check for EFER.LMA, because KVM syncs and flushes when switching
MMU contexts outside of 64-bit mode
All of these are tricky, go for the simple solution. This is CVE-2022-1789.
Reported-by: Yongkang Jia <kangel@zju.edu.cn> Cc: stable@vger.kernel.org Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Yury Norov [Thu, 19 May 2022 17:15:04 +0000 (10:15 -0700)]
KVM: x86: hyper-v: fix type of valid_bank_mask
In kvm_hv_flush_tlb(), valid_bank_mask is declared as unsigned long,
but is used as u64, which is wrong for i386, and has been spotted by
LKP after applying "KVM: x86: hyper-v: replace bitmap_weight() with
hweight64()"
KVM: Free new dirty bitmap if creating a new memslot fails
Fix a goof in kvm_prepare_memory_region() where KVM fails to free the
new memslot's dirty bitmap during a CREATE action if
kvm_arch_prepare_memory_region() fails. The logic is supposed to detect
if the bitmap was allocated and thus needs to be freed, versus if the
bitmap was inherited from the old memslot and thus needs to be kept. If
there is no old memslot, then obviously the bitmap can't have been
inherited
The bug was exposed by commit 211018639af4 ("KVM: x86/mmu: Do not create
SPTEs for GFNs that exceed host.MAXPHYADDR"), which made it trivally easy
for syzkaller to trigger failure during kvm_arch_prepare_memory_region(),
but the bug can be hit other ways too, e.g. due to -ENOMEM when
allocating x86's memslot metadata.
Thomas Gleixner [Fri, 20 May 2022 16:48:54 +0000 (18:48 +0200)]
Merge tag 'irqchip-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms into irq/core
Pull irqchip updates from Marc Zyngier:
- Add new infrastructure to stop gpiolib from rewriting irq_chip
structures behind our back. Convert a few of them, but this will
obviously be a long effort.
- A bunch of GICv3 improvements, such as using MMIO-based invalidations
when possible, and reducing the amount of polling we perform when
reconfiguring interrupts.
- Another set of GICv3 improvements for the Pseudo-NMI functionality,
with a nice cleanup making it easy to reason about the various
states we can be in when an NMI fires.
- The usual bunch of misc fixes and minor improvements.
Haibo Chen [Wed, 11 May 2022 02:15:04 +0000 (10:15 +0800)]
gpio: gpio-vf610: do not touch other bits when set the target bit
For gpio controller contain register PDDR, when set one target bit,
current logic will clear all other bits, this is wrong. Use operator
'|=' to fix it.
Fixes: 967ea1b6fa577cfe ("perf evsel: Pass cpu not cpu map index to synthesize") Reported-by: Michael Petlan <mpetlan@redhat.com> Suggested-by: Michael Petlan <mpetlan@redhat.com> Signed-off-by: Ian Rogers <irogers@google.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Alexei Starovoitov <ast@kernel.org> Cc: Andrii Nakryiko <andrii@kernel.org> Cc: Daniel Borkmann <daniel@iogearbox.net> Cc: Dave Marchevsky <davemarchevsky@fb.com> Cc: Ian Rogers <irogers@google.com> Cc: James Clark <james.clark@arm.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: John Fastabend <john.fastabend@gmail.com> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: KP Singh <kpsingh@kernel.org> Cc: Lv Ruyi <lv.ruyi@zte.com.cn> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Martin KaFai Lau <kafai@fb.com> Cc: Michael Petlan <mpetlan@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: netdev@vger.kernel.org Cc: Peter Zijlstra <peterz@infradead.org> Cc: Quentin Monnet <quentin@isovalent.com> Cc: Song Liu <songliubraving@fb.com> Cc: Stephane Eranian <eranian@google.com> Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com> Cc: Yonghong Song <yhs@fb.com> Link: http://lore.kernel.org/lkml/20220519032005.1273691-2-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
resampler-list is protected by irq_srcu (see kvm_irqfd_assign), so fix
the false positive by using list_for_each_entry_srcu().
Signed-off-by: Wanpeng Li <wanpengli@tencent.com>
Message-Id: <1652950153-12489-1-git-send-email-wanpengli@tencent.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Jens Axboe [Fri, 20 May 2022 12:56:32 +0000 (06:56 -0600)]
Merge tag 'nvme-5.19-2022-05-19' of git://git.infradead.org/nvme into for-5.19/drivers
Pull NVMe updates from Christoph:
"nvme updates for Linux 5.19
- set non-mdts limits in nvme_scan_work (Chaitanya Kulkarni)
- add support for TP4084 - Time-to-Ready Enhancements (me)"
* tag 'nvme-5.19-2022-05-19' of git://git.infradead.org/nvme:
nvme: set non-mdts limits in nvme_scan_work
nvme: add support for TP4084 - Time-to-Ready Enhancements
perf build: Fix check for btf__load_from_kernel_by_id() in libbpf
Avi Kivity reported a problem where the __weak
btf__load_from_kernel_by_id() in tools/perf/util/bpf-event.c was being
used and it called btf__get_from_id() in tools/lib/bpf/btf.c that in
turn called back to btf__load_from_kernel_by_id(), resulting in an
endless loop.
Fix this by adding a feature test to check if
btf__load_from_kernel_by_id() is available when building perf with
LIBBPF_DYNAMIC=1, and if not then provide the fallback to the old
btf__get_from_id(), that doesn't call back to btf__load_from_kernel_by_id()
since at that time it didn't exist at all.
Tested on Fedora 35 where we have libbpf-devel 0.4.0 with LIBBPF_DYNAMIC
where we don't have btf__load_from_kernel_by_id() and thus its feature
test fail, not defining HAVE_LIBBPF_BTF__LOAD_FROM_KERNEL_BY_ID:
$ cat /tmp/build/perf-urgent/feature/test-libbpf-btf__load_from_kernel_by_id.make.output
test-libbpf-btf__load_from_kernel_by_id.c: In function ‘main’:
test-libbpf-btf__load_from_kernel_by_id.c:6:16: error: implicit declaration of function ‘btf__load_from_kernel_by_id’ [-Werror=implicit-function-declaration]
6 | return btf__load_from_kernel_by_id(20151128, NULL);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~
cc1: all warnings being treated as errors
$
$ nm /tmp/build/perf-urgent/perf | grep btf__load_from_kernel_by_id 00000000005ba180 T btf__load_from_kernel_by_id
$
Aaron Lewis [Tue, 17 May 2022 05:12:38 +0000 (05:12 +0000)]
selftests: kvm/x86: Verify the pmu event filter matches the correct event
Add a test to demonstrate that when the guest programs an event select
it is matched correctly in the pmu event filter and not inadvertently
filtered. This could happen on AMD if the high nybble[1] in the event
select gets truncated away only leaving the bottom byte[2] left for
matching.
This is a contrived example used for the convenience of demonstrating
this issue, however, this can be applied to event selects 0x28A (OC
Mode Switch) and 0x08A (L1 BTB Correction), where 0x08A could end up
being denied when the event select was only set up to deny 0x28A.
[1] bits 35:32 in the event select register and bits 11:8 in the event
select.
[2] bits 7:0 in the event select register and bits 7:0 in the event
select.
Signed-off-by: Aaron Lewis <aaronlewis@google.com>
Message-Id: <20220517051238.2566934-3-aaronlewis@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Aaron Lewis [Tue, 17 May 2022 05:12:37 +0000 (05:12 +0000)]
selftests: kvm/x86: Add the helper function create_pmu_event_filter
Add a helper function that creates a pmu event filter given an event
list. Currently, a pmu event filter can only be created with the same
hard coded event list. Add a way to create one given a different event
list.
Also, rename make_pmu_event_filter to alloc_pmu_event_filter to clarify
it's purpose given the introduction of create_pmu_event_filter.
No functional changes intended.
Signed-off-by: Aaron Lewis <aaronlewis@google.com>
Message-Id: <20220517051238.2566934-2-aaronlewis@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Aaron Lewis [Tue, 17 May 2022 05:12:36 +0000 (05:12 +0000)]
kvm: x86/pmu: Fix the compare function used by the pmu event filter
When returning from the compare function the u64 is truncated to an
int. This results in a loss of the high nybble[1] in the event select
and its sign if that nybble is in use. Switch from using a result that
can end up being truncated to a result that can only be: 1, 0, -1.
[1] bits 35:32 in the event select register and bits 11:8 in the event
select.
Fixes: 4db5fc874f645 ("KVM: x86/pmu: Use binary search to check filtered events") Signed-off-by: Aaron Lewis <aaronlewis@google.com> Reviewed-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20220517051238.2566934-1-aaronlewis@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Peter Zijlstra [Fri, 20 May 2022 08:26:04 +0000 (10:26 +0200)]
x86/entry: Fixup objtool/ibt validation
Commit
629736fd7ad1 ("x86/sev: Mark the code returning to user space as syscall gap")
added a bunch of text references without annotating them, resulting in a
spree of objtool complaints:
vmlinux.o: warning: objtool: vc_switch_off_ist+0x77: relocation to !ENDBR: entry_SYSCALL_64+0x15c
vmlinux.o: warning: objtool: vc_switch_off_ist+0x8f: relocation to !ENDBR: entry_SYSCALL_compat+0xa5
vmlinux.o: warning: objtool: vc_switch_off_ist+0x97: relocation to !ENDBR: .entry.text+0x21ea
vmlinux.o: warning: objtool: vc_switch_off_ist+0xef: relocation to !ENDBR: .entry.text+0x162
vmlinux.o: warning: objtool: __sev_es_ist_enter+0x60: relocation to !ENDBR: entry_SYSCALL_64+0x15c
vmlinux.o: warning: objtool: __sev_es_ist_enter+0x6c: relocation to !ENDBR: .entry.text+0x162
vmlinux.o: warning: objtool: __sev_es_ist_enter+0x8a: relocation to !ENDBR: entry_SYSCALL_compat+0xa5
vmlinux.o: warning: objtool: __sev_es_ist_enter+0xc1: relocation to !ENDBR: .entry.text+0x21ea
Since these text references are used to compare against IP, and are not
an indirect call target, they don't need ENDBR so annotate them away.
Fixes: 629736fd7ad1 ("x86/sev: Mark the code returning to user space as syscall gap") Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Signed-off-by: Borislav Petkov <bp@suse.de> Link: https://lore.kernel.org/r/20220520082604.GQ2578@worktop.programming.kicks-ass.net
Linus Torvalds [Fri, 20 May 2022 06:04:17 +0000 (20:04 -1000)]
Merge tag 'v5.18-p2' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Pull crypto fix from Herbert Xu:
"Fix a regression in a recent fix to qcom-rng"
* tag 'v5.18-p2' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
crypto: qcom-rng - fix infinite loop on requests not multiple of WORD_SZ
Daejun Park [Thu, 19 May 2022 06:05:29 +0000 (15:05 +0900)]
scsi: ufs: core: Fix referencing invalid rsp field
Fix referencing sense data when it is invalid. When the length of the data
segment is 0, there is no valid information in the rsp field, so
ufshpb_rsp_upiu() is returned without additional operation.
Link: https://lore.kernel.org/r/252651381.41652940482659.JavaMail.epsvc@epcpadp4 Fixes: 1f1a68bf9c8b ("scsi: ufs: ufshpb: L2P map management for HPB read") Acked-by: Avri Altman <avri.altman@wdc.com> Signed-off-by: Daejun Park <daejun7.park@samsung.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
In current implementation we set the non-mdts limits by calling
nvme_init_non_mdts_limits() from nvme_init_ctrl_finish().
This also tries to set the limits for the discovery controller which
has no I/O queues resulting in the warning message reported by the
nvme_log_error() when running blktest nvme/002: -
[ 2005.155946] run blktests nvme/002 at 2022-04-09 16:57:47
[ 2005.192223] loop: module loaded
[ 2005.196429] nvmet: adding nsid 1 to subsystem blktests-subsystem-0
[ 2005.200334] nvmet: adding nsid 1 to subsystem blktests-subsystem-1
[ 2008.958108] nvmet: adding nsid 1 to subsystem blktests-subsystem-997
[ 2008.962082] nvmet: adding nsid 1 to subsystem blktests-subsystem-998
[ 2008.966102] nvmet: adding nsid 1 to subsystem blktests-subsystem-999
[ 2008.973132] nvmet: creating discovery controller 1 for subsystem nqn.2014-08.org.nvmexpress.discovery for NQN testhostnqn.
*[ 2008.973196] nvme1: Identify(0x6), Invalid Field in Command (sct 0x0 / sc 0x2) MORE DNR*
[ 2008.974595] nvme nvme1: new ctrl: "nqn.2014-08.org.nvmexpress.discovery"
[ 2009.103248] nvme nvme1: Removing ctrl: NQN "nqn.2014-08.org.nvmexpress.discovery"
Move the call of nvme_init_non_mdts_limits() to nvme_scan_work() after
we verify that I/O queues are created since that is a converging point
for each transport where these limits are actually used.
1. FC :
nvme_fc_create_association()
...
nvme_fc_create_io_queues(ctrl);
...
nvme_start_ctrl()
nvme_scan_queue()
nvme_scan_work()
Vasily Averin [Thu, 19 May 2022 14:30:49 +0000 (17:30 +0300)]
io_uring: fix incorrect __kernel_rwf_t cast
Currently 'make C=1 fs/io_uring.o' generates sparse warning:
CHECK fs/io_uring.c
fs/io_uring.c: note: in included file (through
include/trace/trace_events.h, include/trace/define_trace.h, i
nclude/trace/events/io_uring.h):
./include/trace/events/io_uring.h:488:1:
warning: incorrect type in assignment (different base types)
expected unsigned int [usertype] op_flags
got restricted __kernel_rwf_t const [usertype] rw_flags
This happen on cast of sqe->rw_flags which is defined as __kernel_rwf_t,
this type is bitwise and requires __force attribute for any casts.
However rw_flags is a member of the union, and its access can be safely
replaced by using of its neighbours, so let's use poll32_events to fix
the sparse warning.
Linus Torvalds [Thu, 19 May 2022 16:10:09 +0000 (06:10 -1000)]
Merge tag 'for-5.18/parisc-4' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux
Pull parisc architecture fixes from Helge Deller:
"We had two big outstanding issues after v5.18-rc6:
a) 32-bit kernels on 64-bit machines (e.g. on a C3700 which is able
to run 32- and 64-bit kernels) failed early in userspace.
b) 64-bit kernels on PA8800/PA8900 CPUs (e.g. in a C8000) showed
random userspace segfaults. We assumed that those problems were
caused by the tmpalias flushes.
Dave did a lot of testing and reorganization of the current flush code
and fixed the 32-bit cache flushing. For PA8800/PA8900 CPUs he
switched the code to flush using the virtual address of user and
kernel pages instead of using tmpalias flushes. The tmpalias flushes
don't seem to work reliable on such CPUs.
We tested the patches on a wide range machines (715/64, B160L, C3000,
C3700, C8000, rp3440) and they have been in for-next without any
conflicts.
Summary:
- Rewrite the cache flush code for PA8800/PA8900 CPUs to flush using
the virtual address of user and kernel pages instead of using
tmpalias flushes. Testing showed, that tmpalias flushes don't work
reliably on PA8800/PA8900 CPUs
- Fix flush code to allow 32-bit kernels to run on 64-bit capable
machines, e.g. a 32-bit kernel on C3700 machines"
* tag 'for-5.18/parisc-4' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux:
parisc: Fix patch code locking and flushing
parisc: Rewrite cache flush code for PA8800/PA8900
parisc: Disable debug code regarding cache flushes in handle_nadtlb_fault()
Linus Torvalds [Thu, 19 May 2022 16:08:29 +0000 (06:08 -1000)]
Merge tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm
Pull ARM fixes from Russell King:
"Two further fixes for Spectre-BHB from Ard for Cortex A15 and to use
the wide branch instruction for Thumb2"
* tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm:
ARM: 9197/1: spectre-bhb: fix loop8 sequence for Thumb2
ARM: 9196/1: spectre-bhb: enable for Cortex-A15
Linus Torvalds [Thu, 19 May 2022 16:02:41 +0000 (06:02 -1000)]
Merge tag 'pinctrl-v5.18-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl
Pull pin control fixes from Linus Walleij:
- Fix an altmode in the Ocelot driver
- Fix the IES control pins in the Mediatek MT8365 driver
- Sunxi (AMLogic) driver:
- Fix the UART2 function pin assignments
- Fix the signal name of the PA2 SPI pin
* tag 'pinctrl-v5.18-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl:
pinctrl: sunxi: f1c100s: Fix signal name comment for PA2 SPI pin
pinctrl: sunxi: fix f1c100s uart2 function
pinctrl: mediatek: mt8365: fix IES control pins
pinctrl: ocelot: Fix for lan966x alt mode
Ulf Hansson [Tue, 17 May 2022 10:10:46 +0000 (12:10 +0200)]
mmc: core: Fix busy polling for MMC_SEND_OP_COND again
It turned out that polling period for MMC_SEND_OP_COND, that currently is
set to 1ms, still isn't sufficient. In particular a Micron eMMC on a
Beaglebone platform, is reported to sometimes fail to initialize.
Additional test, shows that extending the period to 4ms is working fine, so
let's make that change.
Reported-by: Jean Rene Dawin <jdawin@math.uni-bielefeld.de> Tested-by: Jean Rene Dawin <jdawin@math.uni-bielefeld.de> Fixes: 1aa0d7d2e8ee (mmc: core: Restore (almost) the busy polling for MMC_SEND_OP_COND") Fixes: 8b3cac84c8c1 ("mmc: core: adjust polling interval for CMD1") Cc: stable@vger.kernel.org Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Link: https://lore.kernel.org/r/20220517101046.27512-1-ulf.hansson@linaro.org
Jan Kara [Thu, 19 May 2022 10:52:31 +0000 (12:52 +0200)]
bfq: Remove superfluous conversion from RQ_BIC()
We store struct bfq_io_cq pointer in rq->elv.priv[0] in bfq_init_rq().
Thus a call to icq_to_bic() in RQ_BIC() is wrong. Luckily it does no
harm currently because struct io_iq is the first one in struct
bfq_io_cq.
Jan Kara [Thu, 19 May 2022 10:52:30 +0000 (12:52 +0200)]
bfq: Allow current waker to defend against a tentative one
The code in bfq_check_waker() ignores wake up events from the current
waker. This makes it more likely we select a new tentative waker
although the current one is generating more wake up events. Treat
current waker the same way as any other process and allow it to reset
the waker detection logic.
Jan Kara [Thu, 19 May 2022 10:52:29 +0000 (12:52 +0200)]
bfq: Relax waker detection for shared queues
Currently we look for waker only if current queue has no requests. This
makes sense for bfq queues with a single process however for shared
queues when there is a larger number of processes the condition that
queue has no requests is difficult to meet because often at least one
process has some request in flight although all the others are waiting
for the waker to do the work and this harms throughput. Relax the "no
queued request for bfq queue" condition to "the current task has no
queued requests yet". For this, we also need to start tracking number of
requests in flight for each task.
This patch (together with the following one) restores the performance
for dbench with 128 clients that regressed with commit 4cce546b7eed
("bfq: Do not let waker requests skip proper accounting") because
this commit makes requests of wakers properly enter BFQ queues and thus
these queues become ineligible for the old waker detection logic.
Dbench results:
Zhihao Cheng [Tue, 10 May 2022 13:38:05 +0000 (21:38 +0800)]
fs-writeback: writeback_sb_inodes：Recalculate 'wrote' according skipped pages
Commit 60d25f1aa25b ("writeback: plug writeback in wb_writeback() and
writeback_inodes_wb()") has us holding a plug during wb_writeback, which
may cause a potential ABBA dead lock:
wb_writeback fat_file_fsync
blk_start_plug(&plug)
for (;;) {
iter i-1: some reqs have been added into plug->mq_list // LOCK A
iter i:
progress = __writeback_inodes_wb(wb, work)
. writeback_sb_inodes // fat's bdev
. __writeback_single_inode
. . generic_writepages
. . __block_write_full_page
. . . . __generic_file_fsync
. . . . sync_inode_metadata
. . . . writeback_single_inode
. . . . __writeback_single_inode
. . . . fat_write_inode
. . . . __fat_write_inode
. . . . sync_dirty_buffer // fat's bdev
. . . . lock_buffer(bh) // LOCK B
. . . . submit_bh
. . . . blk_mq_get_tag // LOCK A
. . . trylock_buffer(bh) // LOCK B
. . . redirty_page_for_writepage
. . . wbc->pages_skipped++
. . --wbc->nr_to_write
. wrote += write_chunk - wbc.nr_to_write // wrote > 0
. requeue_inode
. redirty_tail_locked
if (progress) // progress > 0
continue;
iter i+1:
queue_io
// similar process with iter i, infinite for-loop !
}
blk_finish_plug(&plug) // flush plug won't be called
In my test, 'need_resched()' (which is imported by e19a164353 "fs-writeback:
unplug before cond_resched in writeback_sb_inodes") in function
'writeback_sb_inodes()' seldom comes true, unless cond_resched() is deleted
from write_cache_pages().
Fix it by correcting wrote number according number of skipped pages
in writeback_sb_inodes().
drm/i915: Use i915_gem_object_ggtt_pin_ww for reloc_iomap
When removing short term pins, I've changed the the batch buffer
pinning for relocation to use __i915_vma_pin, because
i915_gem_object_ggtt_pin_ww was destroying the old vma. This
caused regressions, because the functions are not identical.
Fix the regressions by calling i915_gem_object_ggtt_pin_ww() again
on ggtt-only platforms, but only if the batch can be pinned without
being moved.
Fixes: 655360fbbefd ("drm/i915: Remove short-term pins from execbuf, v6.") Cc: Matthew Auld <matthew.auld@intel.com> Reported-by: Mateusz Jończyk <mat.jonczyk@o2.pl> Tested-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Acked-by: Matthew Auld <matthew.auld@intel.com> Closes: https://gitlab.freedesktop.org/drm/intel/-/issues/5806 Link: https://patchwork.freedesktop.org/patch/msgid/20220511115219.46507-1-maarten.lankhorst@linux.intel.com
(cherry picked from commit 451374eef622fca6f00eeeda89aaccb45a30a149) Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Lai Jiangshan [Tue, 12 Apr 2022 12:49:08 +0000 (20:49 +0800)]
x86/sev: Mark the code returning to user space as syscall gap
When returning to user space, %rsp is user-controlled value.
If it is a SNP-guest and the hypervisor decides to mess with the
code-page for this path while a CPU is executing it, a potential #VC
could hit in the syscall return path and mislead the #VC handler.
So make ip_within_syscall_gap() return true in this case.
Sunil V L [Thu, 19 May 2022 05:15:12 +0000 (10:45 +0530)]
riscv/efi_stub: Add support for RISCV_EFI_BOOT_PROTOCOL
Add support for getting the boot hart ID from the Linux EFI stub using
RISCV_EFI_BOOT_PROTOCOL. This method is preferred over the existing DT
based approach since it works irrespective of DT or ACPI.
The specification of the protocol is hosted at:
https://github.com/riscv-non-isa/riscv-uefi
Signed-off-by: Sunil V L <sunilvl@ventanamicro.com> Acked-by: Palmer Dabbelt <palmer@rivosinc.com> Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com> Link: https://lore.kernel.org/r/20220519051512.136724-2-sunilvl@ventanamicro.com
[ardb: minor tweaks for coding style and whitespace] Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Andrew Lunn [Wed, 18 May 2022 00:58:40 +0000 (02:58 +0200)]
net: bridge: Clear offload_fwd_mark when passing frame up bridge interface.
It is possible to stack bridges on top of each other. Consider the
following which makes use of an Ethernet switch:
br1
/ \
/ \
/ \
br0.11 wlan0
|
br0
/ | \
p1 p2 p3
br0 is offloaded to the switch. Above br0 is a vlan interface, for
vlan 11. This vlan interface is then a slave of br1. br1 also has a
wireless interface as a slave. This setup trunks wireless lan traffic
over the copper network inside a VLAN.
A frame received on p1 which is passed up to the bridge has the
skb->offload_fwd_mark flag set to true, indicating that the switch has
dealt with forwarding the frame out ports p2 and p3 as needed. This
flag instructs the software bridge it does not need to pass the frame
back down again. However, the flag is not getting reset when the frame
is passed upwards. As a result br1 sees the flag, wrongly interprets
it, and fails to forward the frame to wlan0.
When passing a frame upwards, clear the flag. This is the Rx
equivalent of br_switchdev_frame_unmark() in br_dev_xmit().
Fixes: a962e7cfa4d9 ("bridge: switchdev: Use an helper to clear forward mark") Signed-off-by: Andrew Lunn <andrew@lunn.ch> Reviewed-by: Ido Schimmel <idosch@nvidia.com> Tested-by: Ido Schimmel <idosch@nvidia.com> Acked-by: Nikolay Aleksandrov <razor@blackwall.org> Link: https://lore.kernel.org/r/20220518005840.771575-1-andrew@lunn.ch Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Jonathan Lemon [Tue, 17 May 2022 21:46:00 +0000 (14:46 -0700)]
ptp: ocp: change sysfs attr group handling
In the detach path, the driver calls sysfs_remove_group() for the
groups it believes has been registered. However, if the group was
never previously registered, then this causes a splat.
Instead, compute the groups that should be registered in advance,
and then call sysfs_create_groups(), which registers them all at once.
Update the error handling appropriately.
Fixes: d0527066f191 ("ptp: ocp: Add firmware capability bits for feature gating") Reported-by: Zheyu Ma <zheyuma97@gmail.com> Signed-off-by: Jonathan Lemon <jonathan.lemon@gmail.com> Link: https://lore.kernel.org/r/20220517214600.10606-1-jonathan.lemon@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
1) Reduce number of hardware offload retries from flowtable datapath
which might hog system with retries, from Felix Fietkau.
2) Skip neighbour lookup for PPPoE device, fill_forward_path() already
provides this and set on destination address from fill_forward_path for
PPPoE device, also from Felix.
4) When combining PPPoE on top of a VLAN device, set info->outdev to the
PPPoE device so software offload works, from Felix.
5) Fix TCP teardown flowtable state, races with conntrack gc might result
in resetting the state to ESTABLISHED and the time to one day. Joint
work with Oz Shlomo and Sven Auhagen.
6) Call dst_check() from flowtable datapath to check if dst is stale
instead of doing it from garbage collector path.
7) Disable register tracking infrastructure, either user-space or
kernel need to pre-fetch keys inconditionally, otherwise register
tracking assumes data is already available in register that might
not well be there, leading to incorrect reductions.
* git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf:
netfilter: nf_tables: disable expression reduction infra
netfilter: flowtable: move dst_check to packet path
netfilter: flowtable: fix TCP flow teardown
netfilter: nft_flow_offload: fix offload with pppoe + vlan
net: fix dev_fill_forward_path with pppoe + bridge
netfilter: nft_flow_offload: skip dst neigh lookup for ppp devices
netfilter: flowtable: fix excessive hw offload attempts after failure
====================
Linus Torvalds [Thu, 19 May 2022 00:21:30 +0000 (14:21 -1000)]
Merge tag 'io_uring-5.18-2022-05-18' of git://git.kernel.dk/linux-block
Pull io_uring fixes from Jens Axboe:
"Two small changes fixing issues from the 5.18 merge window:
- Fix wrong ordering of a tracepoint (Dylan)
- Fix MSG_RING on IOPOLL rings (me)"
* tag 'io_uring-5.18-2022-05-18' of git://git.kernel.dk/linux-block:
io_uring: don't attempt to IOPOLL for MSG_RING requests
io_uring: fix ordering of args in io_uring_queue_async_work
Linus Torvalds [Thu, 19 May 2022 00:19:26 +0000 (14:19 -1000)]
Merge tag 'audit-pr-20220518' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/audit
Pull audit fix from Paul Moore:
"A single audit patch to fix a problem where a task's audit_context was
not being properly reset with io_uring"
* tag 'audit-pr-20220518' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/audit:
audit,io_uring,io-wq: call __audit_uring_exit for dummy contexts
Linus Torvalds [Thu, 19 May 2022 00:07:43 +0000 (14:07 -1000)]
Merge branch 'arm/fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull ARM SoC fixes from Arnd Bergmann:
"The SoC bug fixes have calmed down sufficiently, there is one minor
update for the MAINTAINERS file, and few bug fixes for dts
descriptions:
- Updates to the BananaPi R2-Pro (rk3568) dts to match production
hardware rather than the prototype version.
- Qualcomm sm8250 soundwire gets disabled on some machines to avoid
crashes
- A number of aspeed SoC specific fixes, addressing incorrect pin
cotrol settings, some values in the romed8hm board, and a revert
for an accidental removal of a DT node"
* 'arm/fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc:
MAINTAINERS: omap: remove me as a maintainer
ARM: dts: aspeed: Add video engine to g6
ARM: dts: aspeed: romed8hm3: Fix GPIOB0 name
ARM: dts: aspeed: romed8hm3: Add lm25066 sense resistor values
ARM: dts: aspeed-g6: fix SPI1/SPI2 quad pin group
ARM: dts: aspeed-g6: add FWQSPI group in pinctrl dtsi
dt-bindings: pinctrl: aspeed-g6: add FWQSPI function/group
pinctrl: pinctrl-aspeed-g6: add FWQSPI function-group
dt-bindings: pinctrl: aspeed-g6: remove FWQSPID group
pinctrl: pinctrl-aspeed-g6: remove FWQSPID group in pinctrl
ARM: dts: aspeed-g6: remove FWQSPID group in pinctrl dtsi
arm64: dts: qcom: sm8250: don't enable rx/tx macro by default
arm64: dts: rockchip: Add gmac1 and change network settings of bpi-r2-pro
arm64: dts: rockchip: Change io-domains of bpi-r2-pro
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