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2022-05-11bpf: add bpf_map_lookup_percpu_elem for percpu mapFeng Zhou1-0/+9
Add new ebpf helpers bpf_map_lookup_percpu_elem. The implementation method is relatively simple, refer to the implementation method of map_lookup_elem of percpu map, increase the parameters of cpu, and obtain it according to the specified cpu. Signed-off-by: Feng Zhou <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Alexei Starovoitov <[email protected]>
2022-05-11Merge tag 'wireless-2022-05-11' of ↵Jakub Kicinski1-1/+1
git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless Kalle Valo says: ==================== wireless fixes for v5.18 Second set of fixes for v5.18 and hopefully the last one. We have a new iwlwifi maintainer, a fix to rfkill ioctl interface and important fixes to both stack and two drivers. * tag 'wireless-2022-05-11' of git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless: rfkill: uapi: fix RFKILL_IOCTL_MAX_SIZE ioctl request definition nl80211: fix locking in nl80211_set_tx_bitrate_mask() mac80211_hwsim: call ieee80211_tx_prepare_skb under RCU protection mac80211_hwsim: fix RCU protected chanctx access mailmap: update Kalle Valo's email mac80211: Reset MBSSID parameters upon connection cfg80211: retrieve S1G operating channel number nl80211: validate S1G channel width mac80211: fix rx reordering with non explicit / psmp ack policy ath11k: reduce the wait time of 11d scan and hw scan while add interface MAINTAINERS: update iwlwifi driver maintainer iwlwifi: iwl-dbg: Use del_timer_sync() before freeing ==================== Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Jakub Kicinski <[email protected]>
2022-05-11Merge branch 'v5.18-rc5'Peter Zijlstra6-3/+37
Obtain the new INTEL_FAM6 stuff required. Signed-off-by: Peter Zijlstra <[email protected]>
2022-05-11nvme: add vectored-io support for uring-cmdAnuj Gupta1-0/+1
wire up support for async passthru that takes an array of buffers (using iovec). Exposed via a new op NVME_URING_CMD_IO_VEC. Same 'struct nvme_uring_cmd' is to be used with - 1. cmd.addr as base address of user iovec array 2. cmd.data_len as count of iovec array elements Signed-off-by: Kanchan Joshi <[email protected]> Signed-off-by: Anuj Gupta <[email protected]> Reviewed-by: Christoph Hellwig <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Jens Axboe <[email protected]>
2022-05-11nvme: wire-up uring-cmd support for io-passthru on char-device.Kanchan Joshi1-0/+25
Introduce handler for fops->uring_cmd(), implementing async passthru on char device (/dev/ngX). The handler supports newly introduced operation NVME_URING_CMD_IO. This operates on a new structure nvme_uring_cmd, which is similar to struct nvme_passthru_cmd64 but without the embedded 8b result field. This field is not needed since uring-cmd allows to return additional result via big-CQE. Signed-off-by: Kanchan Joshi <[email protected]> Signed-off-by: Anuj Gupta <[email protected]> Reviewed-by: Christoph Hellwig <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Jens Axboe <[email protected]>
2022-05-11fs,io_uring: add infrastructure for uring-cmdJens Axboe1-8/+13
file_operations->uring_cmd is a file private handler. This is somewhat similar to ioctl but hopefully a lot more sane and useful as it can be used to enable many io_uring capabilities for the underlying operation. IORING_OP_URING_CMD is a file private kind of request. io_uring doesn't know what is in this command type, it's for the provider of ->uring_cmd() to deal with. Co-developed-by: Kanchan Joshi <[email protected]> Signed-off-by: Kanchan Joshi <[email protected]> Reviewed-by: Christoph Hellwig <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Jens Axboe <[email protected]>
2022-05-11HID: amd_sfh: Move bus declaration outside of amd-sfhBasavaraj Natikar1-0/+1
This should allow external drivers to reference this bus ID reservation and detect data coming from amd-sfh. Signed-off-by: Mario Limonciello <[email protected]> Signed-off-by: Basavaraj Natikar <[email protected]> Signed-off-by: Jiri Kosina <[email protected]>
2022-05-10bpf, x86: Attach a cookie to fentry/fexit/fmod_ret/lsm.Kui-Feng Lee1-0/+9
Pass a cookie along with BPF_LINK_CREATE requests. Add a bpf_cookie field to struct bpf_tracing_link to attach a cookie. The cookie of a bpf_tracing_link is available by calling bpf_get_attach_cookie when running the BPF program of the attached link. The value of a cookie will be set at bpf_tramp_run_ctx by the trampoline of the link. Signed-off-by: Kui-Feng Lee <[email protected]> Signed-off-by: Alexei Starovoitov <[email protected]> Signed-off-by: Andrii Nakryiko <[email protected]> Acked-by: Andrii Nakryiko <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2022-05-11Merge tag 'drm-msm-next-2022-05-09' of ↵Dave Airlie2-0/+29
https://gitlab.freedesktop.org/drm/msm into drm-next - Fourcc modifier for tiled but not compressed layouts - Support for userspace allocated IOVA (GPU virtual address) - Devfreq clamp_to_idle fix - DPU: DSC (Display Stream Compression) support - DPU: inline rotation support on SC7280 - DPU: update DP timings to follow vendor recommendations - DP, DPU: add support for wide bus (on newer chipsets) - DP: eDP support - Merge DPU1 and MDP5 MDSS driver, make dpu/mdp device the master component - MDSS: optionally reset the IP block at the bootup to drop bootloader state - Properly register and unregister internal bridges in the DRM framework - Complete DPU IRQ cleanup - DP: conversion to use drm_bridge and drm_bridge_connector - eDP: drop old eDP parts again - DPU: writeback support - Misc small fixes Signed-off-by: Dave Airlie <[email protected]> From: Rob Clark <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/CAF6AEGvJCr_1D8d0dgmyQC5HD4gmXeZw=bFV_CNCfceZbpMxRw@mail.gmail.com
2022-05-10bpf, x86: Generate trampolines from bpf_tramp_linksKui-Feng Lee1-0/+1
Replace struct bpf_tramp_progs with struct bpf_tramp_links to collect struct bpf_tramp_link(s) for a trampoline. struct bpf_tramp_link extends bpf_link to act as a linked list node. arch_prepare_bpf_trampoline() accepts a struct bpf_tramp_links to collects all bpf_tramp_link(s) that a trampoline should call. Change BPF trampoline and bpf_struct_ops to pass bpf_tramp_links instead of bpf_tramp_progs. Signed-off-by: Kui-Feng Lee <[email protected]> Signed-off-by: Alexei Starovoitov <[email protected]> Signed-off-by: Andrii Nakryiko <[email protected]> Acked-by: Andrii Nakryiko <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2022-05-10Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhostLinus Torvalds1-7/+7
Pull virtio fix from Michael Tsirkin: "A last minute fixup of the transitional ID numbers. Important to get these right - if users start to depend on the wrong ones they are very hard to fix" * tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost: virtio: fix virtio transitional ids
2022-05-10bpf: Add source ip in "struct bpf_tunnel_key"Kaixi Fan1-0/+4
Add tunnel source ip field in "struct bpf_tunnel_key". Add related code to set and get tunnel source field. Signed-off-by: Kaixi Fan <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Alexei Starovoitov <[email protected]>
2022-05-10ASoC: SOF: ipc: introduce cont_update_posn in sof_ipc_stream_params structYC Hung1-1/+1
The host stream position is updated when no_stream_position is set as 0. However current implementation updates host stream position only when report data is larger than or equal to host period size which is decided by the period size of host side. It maybe cause host stream position update not in time. Therefore this patch introduces another field "cont_update_posn", a boolean value aimed to update host stream position continuously and based on period size of pipeline. It can get better precise when need to update host stream position from firmware. Reviewed-by: Daniel Baluta <[email protected]> Reviewed-by: Ranjani Sridharan <[email protected]> Reviewed-by: Kai Vehmanen <[email protected]> Signed-off-by: YC Hung <[email protected]> Signed-off-by: Pierre-Louis Bossart <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Mark Brown <[email protected]>
2022-05-10loop: remove most the top-of-file boilerplate comment from the UAPI headerChristoph Hellwig1-6/+1
Just leave the SPDX marker and the copyright notice and remove the irrelevant rest. Signed-off-by: Christoph Hellwig <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Jens Axboe <[email protected]>
2022-05-10virtio: fix virtio transitional idsShunsuke Mie1-7/+7
This commit fixes the transitional PCI device ID. Fixes: d61914ea6ada ("virtio: update virtio id table, add transitional ids") Signed-off-by: Shunsuke Mie <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Michael S. Tsirkin <[email protected]>
2022-05-09binder: add BINDER_GET_EXTENDED_ERROR ioctlCarlos Llamas1-0/+16
Provide a userspace mechanism to pull precise error information upon failed operations. Extending the current error codes returned by the interfaces allows userspace to better determine the course of action. This could be for instance, retrying a failed transaction at a later point and thus offloading the error handling from the driver. Acked-by: Christian Brauner (Microsoft) <[email protected]> Acked-by: Todd Kjos <[email protected]> Signed-off-by: Carlos Llamas <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2022-05-09io_uring: support CQE32 in io_uring_cqeStefan Roesch1-0/+7
This adds the big_cqe array to the struct io_uring_cqe to support large CQE's. Co-developed-by: Jens Axboe <[email protected]> Signed-off-by: Stefan Roesch <[email protected]> Reviewed-by: Kanchan Joshi <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Jens Axboe <[email protected]>
2022-05-09io_uring: add support for 128-byte SQEsJens Axboe1-0/+8
Normal SQEs are 64-bytes in length, which is fine for all the commands we support. However, in preparation for supporting passthrough IO, provide an option for setting up a ring with 128-byte SQEs. We continue to use the same type for io_uring_sqe, it's marked and commented with a zero sized array pad at the end. This provides up to 80 bytes of data for a passthrough command - 64 bytes for the extra added data, and 16 bytes available at the end of the existing SQE. Signed-off-by: Jens Axboe <[email protected]>
2022-05-09Merge branch 'for-5.19/io_uring-socket' into for-5.19/io_uring-passthroughJens Axboe1-2/+9
* for-5.19/io_uring-socket: 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() 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
2022-05-09Merge branch 'for-5.19/io_uring' into for-5.19/io_uring-passthroughJens Axboe1-0/+37
* for-5.19/io_uring: (85 commits) io_uring: don't clear req->kbuf when buffer selection is done io_uring: eliminate the need to track provided buffer ID separately io_uring: move provided buffer state closer to submit state io_uring: move provided and fixed buffers into the same io_kiocb area io_uring: abstract out provided buffer list selection io_uring: never call io_buffer_select() for a buffer re-select io_uring: get rid of hashed provided buffer groups io_uring: always use req->buf_index for the provided buffer group io_uring: ignore ->buf_index if REQ_F_BUFFER_SELECT isn't set io_uring: kill io_rw_buffer_select() wrapper io_uring: make io_buffer_select() return the user address directly io_uring: kill io_recv_buffer_select() wrapper io_uring: use 'sr' vs 'req->sr_msg' consistently io_uring: add POLL_FIRST support for send/sendmsg and recv/recvmsg io_uring: check IOPOLL/ioprio support upfront io_uring: replace smp_mb() with smp_mb__after_atomic() in io_sq_thread() io_uring: add IORING_SETUP_TASKRUN_FLAG io_uring: use TWA_SIGNAL_NO_IPI if IORING_SETUP_COOP_TASKRUN is used io_uring: set task_work notify method at init time io-wq: use __set_notify_signal() to wake workers ...
2022-05-09rfkill: uapi: fix RFKILL_IOCTL_MAX_SIZE ioctl request definitionGleb Fotengauer-Malinovskiy1-1/+1
The definition of RFKILL_IOCTL_MAX_SIZE introduced by commit 54f586a91532 ("rfkill: make new event layout opt-in") is unusable since it is based on RFKILL_IOC_EXT_SIZE which has not been defined. Fix that by replacing the undefined constant with the constant which is intended to be used in this definition. Fixes: 54f586a91532 ("rfkill: make new event layout opt-in") Cc: [email protected] # 5.11+ Signed-off-by: Gleb Fotengauer-Malinovskiy <[email protected]> Signed-off-by: Dmitry V. Levin <[email protected]> Link: https://lore.kernel.org/r/[email protected] [add commit message provided later by Dmitry] Signed-off-by: Johannes Berg <[email protected]>
2022-05-09landlock: Add clang-format exceptionsMickaël Salaün1-0/+4
In preparation to a following commit, add clang-format on and clang-format off stanzas around constant definitions. This enables to keep aligned values, which is much more readable than packed definitions. Link: https://lore.kernel.org/r/[email protected] Cc: [email protected] Signed-off-by: Mickaël Salaün <[email protected]>
2022-05-06Merge tag 'tee-cleanup-for-v5.19' of ↵Arnd Bergmann1-4/+0
https://git.linaro.org/people/jens.wiklander/linux-tee into arm/drivers TEE cleanup Removes the old and unused TEE_IOCTL_SHM_* flags Removes unused the unused tee_shm_va2pa() and tee_shm_pa2va() functions * tag 'tee-cleanup-for-v5.19' of https://git.linaro.org/people/jens.wiklander/linux-tee: tee: remove flags TEE_IOCTL_SHM_MAPPED and TEE_IOCTL_SHM_DMA_BUF tee: remove tee_shm_va2pa() and tee_shm_pa2va() Link: https://lore.kernel.org/r/20220506070328.GA1344495@jade Signed-off-by: Arnd Bergmann <[email protected]>
2022-05-06drm/amdgpu: add GC 11.0.1 family idHuang Rui1-0/+1
Add a flag to define GC 11.0.1. Signed-off-by: Huang Rui <[email protected]> Reviewed-by: Aaron Liu <[email protected]> Signed-off-by: Alex Deucher <[email protected]>
2022-05-06Merge tag 'drm-intel-gt-next-2022-05-05' of ↵Dave Airlie1-6/+56
git://anongit.freedesktop.org/drm/drm-intel into drm-next UAPI Changes: - Add kerneldoc for engine class enum (Matt Roper) - Add compute engine ABI (Matt Roper) Driver Changes: - Define GuC firmware version for DG2 (John Harrison) - Clear SET_PREDICATE_RESULT prior to executing the ring (Chris Wilson) - Fix race in __i915_vma_remove_closed (Karol Herbst) - Add register for compute engine's MMIO-based TLB invalidation (Matt Roper) - Xe_HP SDV and DG2 have up to 4 CCS engines (Daniele Ceraolo Spurio) - Add initial Ponte Vecchio definitions (Stuart Summers) - Document the eviction of the Flat-CCS objects (Ramalingam C) - Use existing uncore helper to read gpm_timestamp (Umesh Nerlige Ramappa) - Fix issue with LRI relative addressing (Akeem G Abodunrin) - Skip poisoning SET_PREDICATE_RESULT on dg2 (Chris Wilson) - Optimize the ccs_sz calculation per chunk (Ramalingam C) - Remove superfluous string helper include (Jani Nikula) - Fix assert in i915_ggtt_pin (Tvrtko Ursulin) - Use IOMEM_ERR_PTR() directly (Kefeng Wang) Signed-off-by: Dave Airlie <[email protected]> From: Tvrtko Ursulin <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/YnNxCm1pyflu3taj@tursulin-mobl2
2022-05-05io_uring: add POLL_FIRST support for send/sendmsg and recv/recvmsgJens Axboe1-0/+10
If IORING_RECVSEND_POLL_FIRST is set for recv/recvmsg or send/sendmsg, then we arm poll first rather than attempt a receive or send upfront. This can be useful if we expect there to be no data (or space) available for the request, as we can then avoid wasting time on the initial issue attempt. Reviewed-by: Hao Xu <[email protected]> Signed-off-by: Jens Axboe <[email protected]>
2022-05-05Revert "Merge branch 'mlxsw-line-card-model'"Jakub Kicinski1-5/+0
This reverts commit 5e927a9f4b9f29d78a7c7d66ea717bb5c8bbad8e, reversing changes made to cfc1d91a7d78cf9de25b043d81efcc16966d55b3. The discussion is still ongoing so let's remove the uAPI until the discussion settles. Link: https://lore.kernel.org/all/[email protected]/ Reviewed-by: Ido Schimmel <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Jakub Kicinski <[email protected]>
2022-05-05termbits: Convert octal defines to hexIlpo Järvinen1-110/+110
Many archs have termbits.h as octal numbers. It makes hard for humans to parse the magnitude of large numbers correctly and to compare with hex ones of the same define. Convert octal values to hex. First step is an automated conversion with: for i in $(git ls-files | grep 'termbits\.h'); do awk --non-decimal-data '/^#define\s+[A-Z][A-Z0-9]*\s+0[0-9]/ { l=int(((length($3) - 1) * 3 + 3) / 4); repl = sprintf("0x%0" l "x", $3); print gensub(/[^[:blank:]]+/, repl, 3); next} {print}' $i > $i~; mv $i~ $i; done On top of that, some manual processing on alignment and number of zeros. In addition, small tweaks to formatting of a few comments on the same lines. Signed-off-by: Ilpo Järvinen <[email protected]> Acked-by: Arnd Bergmann <[email protected]> Acked-by: Michael Ellerman <[email protected]> (powerpc) Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2022-05-05Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netJakub Kicinski2-2/+10
tools/testing/selftests/net/forwarding/Makefile f62c5acc800e ("selftests/net/forwarding: add missing tests to Makefile") 50fe062c806e ("selftests: forwarding: new test, verify host mdb entries") https://lore.kernel.org/all/[email protected]/ Signed-off-by: Jakub Kicinski <[email protected]>
2022-05-04cfg80211: support disabling EHT modeMuna Sinada1-0/+2
Allow userspace to disable EHT mode during association. Signed-off-by: Muna Sinada <[email protected]> Signed-off-by: Aloka Dixit <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Johannes Berg <[email protected]>
2022-05-04drm/amdgpu: add GC v11_0_0 family idHawking Zhang1-0/+1
Add GC v11_0_0 family id Signed-off-by: Hawking Zhang <[email protected]> Reviewed-by: Likun Gao <[email protected]> Signed-off-by: Alex Deucher <[email protected]>
2022-05-04mptcp: netlink: allow userspace-driven subflow establishmentFlorian Westphal1-0/+3
This allows userspace to tell kernel to add a new subflow to an existing mptcp connection. Userspace provides the token to identify the mptcp-level connection that needs a change in active subflows and the local and remote addresses of the new or the to-be-removed subflow. MPTCP_PM_CMD_SUBFLOW_CREATE requires the following parameters: { token, { loc_id, family, loc_addr4 | loc_addr6 }, { family, rem_addr4 | rem_addr6, rem_port } MPTCP_PM_CMD_SUBFLOW_DESTROY requires the following parameters: { token, { family, loc_addr4 | loc_addr6, loc_port }, { family, rem_addr4 | rem_addr6, rem_port } Acked-by: Paolo Abeni <[email protected]> Co-developed-by: Kishen Maloor <[email protected]> Signed-off-by: Kishen Maloor <[email protected]> Signed-off-by: Florian Westphal <[email protected]> Signed-off-by: Mat Martineau <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2022-05-04mptcp: netlink: Add MPTCP_PM_CMD_REMOVEKishen Maloor1-0/+2
This change adds a MPTCP netlink command for issuing a REMOVE_ADDR signal for an address over the chosen MPTCP connection from a userspace path manager. The command requires the following parameters: {token, loc_id}. Acked-by: Paolo Abeni <[email protected]> Signed-off-by: Kishen Maloor <[email protected]> Signed-off-by: Mat Martineau <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2022-05-04mptcp: netlink: Add MPTCP_PM_CMD_ANNOUNCEKishen Maloor1-0/+2
This change adds a MPTCP netlink interface for issuing ADD_ADDR advertisements over the chosen MPTCP connection from a userspace path manager. The command requires the following parameters: { token, { loc_id, family, daddr4 | daddr6 [, dport] } [, if_idx], flags[signal] }. Acked-by: Paolo Abeni <[email protected]> Signed-off-by: Kishen Maloor <[email protected]> Signed-off-by: Mat Martineau <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2022-05-04gpiolib: cdev: Add hardware timestamp clock typeDipen Patel1-0/+3
This patch adds new clock type for the GPIO controller which can timestamp gpio lines in using hardware means. To expose such functionalities to the userspace, code has been added where during line create or set config API calls, it checks for new clock type and if requested, calls HTE API. During line change event, the HTE subsystem pushes timestamp data to userspace through gpiolib-cdev. Signed-off-by: Dipen Patel <[email protected]> Acked-by: Linus Walleij <[email protected]> Reported-by: kernel test robot <[email protected]> Reported-by: Dan Carpenter <[email protected]> Signed-off-by: Thierry Reding <[email protected]>
2022-05-04Merge remote-tracking branch 'arm64/for-next/sme' into kvmarm-master/nextMarc Zyngier2-0/+11
Merge arm64's SME branch to resolve conflicts with the WFxT branch. Signed-off-by: Marc Zyngier <[email protected]>
2022-05-04KVM: arm64: Implement PSCI SYSTEM_SUSPENDOliver Upton1-0/+2
ARM DEN0022D.b 5.19 "SYSTEM_SUSPEND" describes a PSCI call that allows software to request that a system be placed in the deepest possible low-power state. Effectively, software can use this to suspend itself to RAM. Unfortunately, there really is no good way to implement a system-wide PSCI call in KVM. Any precondition checks done in the kernel will need to be repeated by userspace since there is no good way to protect a critical section that spans an exit to userspace. SYSTEM_RESET and SYSTEM_OFF are equally plagued by this issue, although no users have seemingly cared for the relatively long time these calls have been supported. The solution is to just make the whole implementation userspace's problem. Introduce a new system event, KVM_SYSTEM_EVENT_SUSPEND, that indicates to userspace a calling vCPU has invoked PSCI SYSTEM_SUSPEND. Additionally, add a CAP to get buy-in from userspace for this new exit type. Only advertise the SYSTEM_SUSPEND PSCI call if userspace has opted in. If a vCPU calls SYSTEM_SUSPEND, punt straight to userspace. Provide explicit documentation of userspace's responsibilites for the exit and point to the PSCI specification to describe the actual PSCI call. Reviewed-by: Reiji Watanabe <[email protected]> Signed-off-by: Oliver Upton <[email protected]> Signed-off-by: Marc Zyngier <[email protected]> Link: https://lore.kernel.org/r/[email protected]
2022-05-04KVM: arm64: Add support for userspace to suspend a vCPUOliver Upton1-0/+2
Introduce a new MP state, KVM_MP_STATE_SUSPENDED, which indicates a vCPU is in a suspended state. In the suspended state the vCPU will block until a wakeup event (pending interrupt) is recognized. Add a new system event type, KVM_SYSTEM_EVENT_WAKEUP, to indicate to userspace that KVM has recognized one such wakeup event. It is the responsibility of userspace to then make the vCPU runnable, or leave it suspended until the next wakeup event. Signed-off-by: Oliver Upton <[email protected]> Signed-off-by: Marc Zyngier <[email protected]> Link: https://lore.kernel.org/r/[email protected]
2022-05-03mptcp: expose server_side attribute in MPTCP netlink eventsKishen Maloor1-0/+1
This change records the 'server_side' attribute of MPTCP_EVENT_CREATED and MPTCP_EVENT_ESTABLISHED events to inform their recipient about the Client/Server role of the running MPTCP application. Closes: https://github.com/multipath-tcp/mptcp_net-next/issues/246 Acked-by: Paolo Abeni <[email protected]> Signed-off-by: Kishen Maloor <[email protected]> Signed-off-by: Mat Martineau <[email protected]> Signed-off-by: Jakub Kicinski <[email protected]>
2022-05-03seccomp: Add wait_killable semantic to seccomp user notifierSargun Dhillon1-0/+2
This introduces a per-filter flag (SECCOMP_FILTER_FLAG_WAIT_KILLABLE_RECV) that makes it so that when notifications are received by the supervisor the notifying process will transition to wait killable semantics. Although wait killable isn't a set of semantics formally exposed to userspace, the concept is searchable. If the notifying process is signaled prior to the notification being received by the userspace agent, it will be handled as normal. One quirk about how this is handled is that the notifying process only switches to TASK_KILLABLE if it receives a wakeup from either an addfd or a signal. This is to avoid an unnecessary wakeup of the notifying task. The reasons behind switching into wait_killable only after userspace receives the notification are: * Avoiding unncessary work - Often, workloads will perform work that they may abort (request racing comes to mind). This allows for syscalls to be aborted safely prior to the notification being received by the supervisor. In this, the supervisor doesn't end up doing work that the workload does not want to complete anyways. * Avoiding side effects - We don't want the syscall to be interruptible once the supervisor starts doing work because it may not be trivial to reverse the operation. For example, unmounting a file system may take a long time, and it's hard to rollback, or treat that as reentrant. * Avoid breaking runtimes - Various runtimes do not GC when they are during a syscall (or while running native code that subsequently calls a syscall). If many notifications are blocked, and not picked up by the supervisor, this can get the application into a bad state. Signed-off-by: Sargun Dhillon <[email protected]> Signed-off-by: Kees Cook <[email protected]> Link: https://lore.kernel.org/r/[email protected]
2022-05-03Backmerge tag 'v5.18-rc5' of ↵Dave Airlie6-3/+37
git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux into drm-next Linux 5.18-rc5 There was a build fix for arm I wanted in drm-next, so backmerge rather then cherry-pick. Signed-off-by: Dave Airlie <[email protected]>
2022-05-02scsi: mpi3mr: Add support for NVMe passthroughSumit Saxena1-0/+8
Add support for management applications to send an MPI3 Encapsulated NVMe passthru command to the NVMe devices attached to an Avenger controller. Since the NVMe drives are exposed as SCSI devices by the controller, the standard NVMe applications cannot be used to interact with the drives and the command sets supported are also limited by the controller firmware. Special handling is required for MPI3 Encapsulated NVMe passthru commands for PRP/SGL setup in the commands. Link: https://lore.kernel.org/r/[email protected] Reviewed-by: Himanshu Madhani <[email protected]> Signed-off-by: Sumit Saxena <[email protected]> Signed-off-by: Martin K. Petersen <[email protected]>
2022-05-02scsi: mpi3mr: Move data structures/definitions from MPI headers to uapi headerSumit Saxena1-0/+117
This patch moves the data structures/definitions which are used by userspace applications from MPI headers to uapi/scsi/scsi_bsg_mpi3mr.h Link: https://lore.kernel.org/r/[email protected] Reported by: Stephen Rothwell <[email protected]> Reviewed-by: Himanshu Madhani <[email protected]> Signed-off-by: Sumit Saxena <[email protected]> Signed-off-by: Martin K. Petersen <[email protected]>
2022-05-02scsi: mpi3mr: Add support for driver commandsSumit Saxena1-0/+457
There are certain bsg commands which need to be completed by the driver without involving firmware. These requests are termed driver commands. Add support for these. Link: https://lore.kernel.org/r/[email protected] Reported by: Stephen Rothwell <[email protected]> Reported-by: kernel test robot <[email protected]> Reviewed-by: Himanshu Madhani <[email protected]> Signed-off-by: Sumit Saxena <[email protected]> Signed-off-by: Martin K. Petersen <[email protected]>
2022-05-01Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds1-1/+9
Pull kvm fixes from Paolo Bonzini: "ARM: - Take care of faults occuring between the PARange and IPA range by injecting an exception - Fix S2 faults taken from a host EL0 in protected mode - Work around Oops caused by a PMU access from a 32bit guest when PMU has been created. This is a temporary bodge until we fix it for good. x86: - Fix potential races when walking host page table - Fix shadow page table leak when KVM runs nested - Work around bug in userspace when KVM synthesizes leaf 0x80000021 on older (pre-EPYC) or Intel processors Generic (but affects only RISC-V): - Fix bad user ABI for KVM_EXIT_SYSTEM_EVENT" * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: KVM: x86: work around QEMU issue with synthetic CPUID leaves Revert "x86/mm: Introduce lookup_address_in_mm()" KVM: x86/mmu: fix potential races when walking host page table KVM: fix bad user ABI for KVM_EXIT_SYSTEM_EVENT KVM: x86/mmu: Do not create SPTEs for GFNs that exceed host.MAXPHYADDR KVM: arm64: Inject exception on out-of-IPA-range translation fault KVM/arm64: Don't emulate a PMU for 32-bit guests if feature not set KVM: arm64: Handle host stage-2 faults from 32-bit EL0
2022-05-01net: phy: Add 10BASE-T1L support in phy-c45Alexandru Tachici1-0/+10
This patch is needed because the BASE-T1 uses different registers for status, control and advertisement to those already employed in the existing phy-c45 functions. Where required, genphy_c45 functions will now check whether the device supports BASE-T1 and use the specific registers instead: 45.2.7.19 BASE-T1 AN control register, 45.2.7.20 BASE-T1 AN status, 45.2.7.21 BASE-T1 AN advertisement register, 45.2.7.22 BASE-T1 AN LP Base Page ability register, 45.2.1.185 BASE-T1 PMA/PMD control register. Tested-by: Oleksij Rempel <[email protected]> Signed-off-by: Alexandru Tachici <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2022-05-01net: phy: Add BaseT1 auto-negotiation registersAlexandru Tachici1-0/+40
Added BASE-T1 AN advertisement register (Registers 7.514, 7.515, and 7.516) and BASE-T1 AN LP Base Page ability register (Registers 7.517, 7.518, and 7.519). Reviewed-by: Andrew Lunn <[email protected]> Signed-off-by: Alexandru Tachici <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2022-05-01net: phy: Add 10-BaseT1L registersAlexandru Tachici1-0/+25
The 802.3gc specification defines the 10-BaseT1L link mode for ethernet trafic on twisted wire pair. PMA status register can be used to detect if the phy supports 2.4 V TX level and PCS control register can be used to enable/disable PCS level loopback. Reviewed-by: Andrew Lunn <[email protected]> Signed-off-by: Alexandru Tachici <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2022-05-01ethtool: Add 10base-T1L link mode entryAlexandru Tachici1-0/+1
Add entry for the 10base-T1L full duplex mode. Reviewed-by: Andrew Lunn <[email protected]> Reviewed-by: Oleksij Rempel <[email protected]> Signed-off-by: Alexandru Tachici <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2022-04-30io_uring: add IORING_SETUP_TASKRUN_FLAGJens Axboe1-0/+7
If IORING_SETUP_COOP_TASKRUN is set to use cooperative scheduling for running task_work, then IORING_SETUP_TASKRUN_FLAG can be set so the application can tell if task_work is pending in the kernel for this ring. This allows use cases like io_uring_peek_cqe() to still function appropriately, or for the task to know when it would be useful to call io_uring_wait_cqe() to run pending events. Reviewed-by: Pavel Begunkov <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Jens Axboe <[email protected]>
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