- Oct 24, 2020
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git://git.lwn.net/linuxLinus Torvalds authored
Pull documentation fixes from Jonathan Corbet: "A handful of late-arriving documentation fixes" * tag 'docs-5.10-2' of git://git.lwn.net/linux: docs: Add two missing entries in vm sysctl index docs/vm: trivial fixes to several spelling mistakes docs: submitting-patches: describe preserving review/test tags Documentation: Chinese translation of Documentation/arm64/hugetlbpage.rst Documentation: x86: fix a missing word in x86_64/mm.rst. docs: driver-api: remove a duplicated index entry docs: lkdtm: Modernize and improve details docs: deprecated.rst: Expand str*cpy() replacement notes docs/cpu-load: format the example code.
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git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-traceLinus Torvalds authored
Pull tracing ring-buffer fix from Steven Rostedt: "The success return value of ring_buffer_resize() is stated to be zero and checked that way. But it was incorrectly returning the size allocated. Also, a fix to a comment" * tag 'trace-v5.10-3' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: ring-buffer: Update the description for ring_buffer_wait ring-buffer: Return 0 on success from ring_buffer_resize()
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pmLinus Torvalds authored
Pull more ACPI updates from Rafael Wysocki: "These include an ACPICA code build fix related to recent GPE register access changes, a Kconfig cleanup related to the Dynamic Platform and Thremal Framework (DPTF) support, a reboot issue workaround, a debug module fix and a couple of janitorial changes. Specifics: - Fix ACPICA code build after recent changes related to accessing GPE registers (Rafael Wysocki). - Clean up DPTF part of the ACPI Kconfig (Rafael Wysocki). - Work around a reboot issue related to RESET_REG (Zhang Rui). - Prevent ACPI debug module from attemtping to run (and crashing) when ACPI is disabled (Jamie Iles). - Drop confusing comment from the ACPI processor driver (Alex Hung). - Drop a few unreachable break statements (Tom Rix)" * tag 'acpi-5.10-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: ACPI: utils: remove unreachable breaks ACPICA: Add missing type casts in GPE register access code ACPI: DPTF: Add ACPI_DPTF Kconfig menu ACPI: DPTF: Fix participant driver names ACPI: processor: remove comment regarding string _UID support ACPI: reboot: Avoid racing after writing to ACPI RESET_REG ACPI: debug: don't allow debugging when ACPI is disabled
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pmLinus Torvalds authored
Pull more power management updates from Rafael Wysocki: "First of all, the adaptive voltage scaling (AVS) drivers go to new platform-specific locations as planned (this part was reported to have merge conflicts against the new arm-soc updates in linux-next). In addition to that, there are some fixes (intel_idle, intel_pstate, RAPL, acpi_cpufreq), the addition of on/off notifiers and idle state accounting support to the generic power domains (genpd) code and some janitorial changes all over. Specifics: - Move the AVS drivers to new platform-specific locations and get rid of the drivers/power/avs directory (Ulf Hansson). - Add on/off notifiers and idle state accounting support to the generic power domains (genpd) framework (Ulf Hansson, Lina Iyer). - Ulf will maintain the PM domain part of cpuidle-psci (Ulf Hansson). - Make intel_idle disregard ACPI _CST if it cannot use the data returned by that method (Mel Gorman). - Modify intel_pstate to avoid leaving useless sysfs directory structure behind if it cannot be registered (Chen Yu). - Fix domain detection in the RAPL power capping driver and prevent it from failing to enumerate the Psys RAPL domain (Zhang Rui). - Allow acpi-cpufreq to use ACPI _PSD information with Family 19 and later AMD chips (Wei Huang). - Update the driver assumptions comment in intel_idle and fix a kerneldoc comment in the runtime PM framework (Alexander Monakov, Bean Huo). - Avoid unnecessary resets of the cached frequency in the schedutil cpufreq governor to reduce overhead (Wei Wang). - Clean up the cpufreq core a bit (Viresh Kumar). - Make assorted minor janitorial changes (Daniel Lezcano, Geert Uytterhoeven, Hubert Jasudowicz, Tom Rix). - Clean up and optimize the cpupower utility somewhat (Colin Ian King, Martin Kaistra)" * tag 'pm-5.10-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (23 commits) PM: sleep: remove unreachable break PM: AVS: Drop the avs directory and the corresponding Kconfig PM: AVS: qcom-cpr: Move the driver to the qcom specific drivers PM: runtime: Fix typo in pm_runtime_set_active() helper comment PM: domains: Fix build error for genpd notifiers powercap: Fix typo in Kconfig "Plance" -> "Plane" cpufreq: schedutil: restore cached freq when next_f is not changed acpi-cpufreq: Honor _PSD table setting on new AMD CPUs PM: AVS: smartreflex Move driver to soc specific drivers PM: AVS: rockchip-io: Move the driver to the rockchip specific drivers PM: domains: enable domain idle state accounting PM: domains: Add curly braces to delimit comment + statement block PM: domains: Add support for PM domain on/off notifiers for genpd powercap/intel_rapl: enumerate Psys RAPL domain together with package RAPL domain powercap/intel_rapl: Fix domain detection intel_idle: Ignore _CST if control cannot be taken from the platform cpuidle: Remove pointless stub intel_idle: mention assumption that WBINVD is not needed MAINTAINERS: Add section for cpuidle-psci PM domain cpufreq: intel_pstate: Delete intel_pstate sysfs if failed to register the driver ...
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git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsiLinus Torvalds authored
Pull more SCSI updates from James Bottomley: "The set of core changes here is Christoph's submission path cleanups. These introduced a couple of regressions when first proposed so they got held over from the initial merge window pull request to give more testing time, which they've now had and Syzbot has confirmed the regression it detected is fixed. The other main changes are two driver updates (arcmsr, pm80xx) and assorted minor clean ups" * tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (38 commits) scsi: qla2xxx: Fix return of uninitialized value in rval scsi: core: Set sc_data_direction to DMA_NONE for no-transfer commands scsi: sr: Initialize ->cmd_len scsi: arcmsr: Update driver version to v1.50.00.02-20200819 scsi: arcmsr: Add support for ARC-1886 series RAID controllers scsi: arcmsr: Fix device hot-plug monitoring timer stop scsi: arcmsr: Remove unnecessary syntax scsi: pm80xx: Driver version update scsi: pm80xx: Increase the number of outstanding I/O supported to 1024 scsi: pm80xx: Remove DMA memory allocation for ccb and device structures scsi: pm80xx: Increase number of supported queues scsi: sym53c8xx_2: Fix sizeof() mismatch scsi: isci: Fix a typo in a comment scsi: qla4xxx: Fix inconsistent format argument type scsi: myrb: Fix inconsistent format argument types scsi: myrb: Remove redundant assignment to variable timeout scsi: bfa: Fix error return in bfad_pci_init() scsi: fcoe: Simplify the return expression of fcoe_sysfs_setup() scsi: snic: Simplify the return expression of svnic_cq_alloc() scsi: fnic: Simplify the return expression of vnic_wq_copy_alloc() ...
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git://git.kernel.org/pub/scm/linux/kernel/git/dtor/inputLinus Torvalds authored
Pull input updates from Dmitry Torokhov: - a new driver for ADC driven joysticks - a new Zintix touchscreen driver - enhancements to Intel SoC button array driver - support for F3A "function" in Synaptics RMI4 driver - assorted driver fixups * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (29 commits) Input: Add MAINTAINERS entry for SiS i2c touch input driver Input: evdev - per-client waitgroups Input: synaptics - enable InterTouch for ThinkPad T14 Gen 1 Input: synaptics - enable InterTouch for ThinkPad P1/X1E gen 2 Input: synaptics-rmi4 - support bootloader v8 in f34v7 Input: synaptics-rmi4 - add support for F3A Input: synaptics-rmi4 - rename f30_data to gpio_data Input: add zinitix touchscreen driver dt-bindings: input/touchscreen: add bindings for zinitix Input: joystick - add ADC attached joystick driver. dt-bindings: input: Add docs for ADC driven joystick Input: sun4i-ps2 - fix handling of platform_get_irq() error Input: twl4030_keypad - fix handling of platform_get_irq() error Input: omap4-keypad - fix handling of platform_get_irq() error Input: ep93xx_keypad - fix handling of platform_get_irq() error Input: stmfts - fix a & vs && typo Input: imx6ul_tsc - unify open/close and PM paths Input: imx6ul_tsc - clean up some errors in imx6ul_tsc_resume() Input: elants_i2c - fix typo for an attribute to show calibration count Input: elants_i2c - report resolution of ABS_MT_TOUCH_MAJOR by FW information. ...
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git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/soundLinus Torvalds authored
Pull sound fixes from Takashi Iwai: "Just a few additional small and trivial fixes" * tag 'sound-fix-5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: ALSA: hda - Fix the return value if cb func is already registered ALSA: usb-audio: Line6 Pod Go interface requires static clock rate quirk ALSA: hda/ca0132: make some const arrays static, makes object smaller ALSA: sparc: dbri: fix repeated word 'the'
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git://anongit.freedesktop.org/drm/drmLinus Torvalds authored
Pull more drm fixes from Dave Airlie: "This should be the last round of things for rc1, a bunch of i915 fixes, some amdgpu, more font OOB fixes and one ttm fix just found reading code: fbcon/fonts: - Two patches to prevent OOB access ttm: - fix for evicition value range check amdgpu: - Sienna Cichlid fixes - MST manager resource leak fix - GPU reset fix amdkfd: - Luxmark fix for Navi1x i915: - Tweak initial DPCD backlight.enabled value (Sean) - Initialize reserved MOCS indices (Ayaz) - Mark initial fb obj as WT on eLLC machines to avoid rcu lockup (Ville) - Support parsing of oversize batches (Chris) - Delay execlists processing for TGL (Chris) - Use the active reference on the vma during error capture (Chris) - Widen CSB pointer (Chris) - Wait for CSB entries on TGL (Chris) - Fix unwind for scratch page allocation (Chris) - Exclude low patches of stolen memory (Chris) - Force VT'd workarounds when running as a guest OS (Chris) - Drop runtime-pm assert from vpgu io accessors (Chris)" * tag 'drm-next-2020-10-23' of git://anongit.freedesktop.org/drm/drm: (31 commits) drm/amdgpu: correct the cu and rb info for sienna cichlid drm/amd/pm: remove the average clock value in sysfs drm/amd/pm: fix pp_dpm_fclk Revert drm/amdgpu: disable sienna chichlid UMC RAS drm/amd/pm: fix pcie information for sienna cichlid drm/amdkfd: Use same SQ prefetch setting as amdgpu drm/amd/swsmu: correct wrong feature bit mapping drm/amd/psp: Fix sysfs: cannot create duplicate filename drm/amd/display: Avoid MST manager resource leak. drm/amd/display: Revert "drm/amd/display: Fix a list corruption" drm/amdgpu: update golden setting for sienna_cichlid drm/amd/swsmu: add missing feature map for sienna_cichlid drm/amdgpu: correct the gpu reset handling for job != NULL case drm/amdgpu: add rlc iram and dram firmware support drm/amdgpu: add function to program pbb mode for sienna cichlid drm/i915: Drop runtime-pm assert from vgpu io accessors drm/i915: Force VT'd workarounds when running as a guest OS drm/i915: Exclude low pages (128KiB) of stolen from use drm/i915/gt: Onion unwind for scratch page allocation failure drm/ttm: fix eviction valuable range check. ...
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Rasmus Villemoes authored
Quoting https://gcc.gnu.org/onlinedocs/gcc/Local-Register-Variables.html: You can define a local register variable and associate it with a specified register... The only supported use for this feature is to specify registers for input and output operands when calling Extended asm (see Extended Asm). This may be necessary if the constraints for a particular machine don't provide sufficient control to select the desired register. On 32-bit x86, this is used to ensure that gcc will put an 8-byte value into the %edx:%eax pair, while all other cases will just use the single register %eax (%rax on x86-64). While the _ASM_AX actually just expands to "%eax", note this comment next to get_user() which does something very similar: * The use of _ASM_DX as the register specifier is a bit of a * simplification, as gcc only cares about it as the starting point * and not size: for a 64-bit value it will use %ecx:%edx on 32 bits * (%ecx being the next register in gcc's x86 register sequence), and * %rdx on 64 bits. However, getting this to work requires that there is no code between the assignment to the local register variable and its use as an input to the asm() which can possibly clobber any of the registers involved - including evaluation of the expressions making up other inputs. In the current code, the ptr expression used directly as an input may cause such code to be emitted. For example, Sean Christopherson observed that with KASAN enabled and ptr being current->set_child_tid (from chedule_tail()), the load of current->set_child_tid causes a call to __asan_load8() to be emitted immediately prior to the __put_user_4 call, and Naresh Kamboju reports that various mmstress tests fail on KASAN-enabled builds. It's also possible to synthesize a broken case without KASAN if one uses "foo()" as the ptr argument, with foo being some "extern u64 __user *foo(void);" (though I don't know if that appears in real code). Fix it by making sure ptr gets evaluated before the assignment to __val_pu, and add a comment that __val_pu must be the last thing computed before the asm() is entered. Cc: Sean Christopherson <sean.j.christopherson@intel.com> Reported-by:
Naresh Kamboju <naresh.kamboju@linaro.org> Tested-by:
Naresh Kamboju <naresh.kamboju@linaro.org> Fixes: d55564cf ("x86: Make __put_user() generate an out-of-line call") Signed-off-by:
Rasmus Villemoes <linux@rasmusvillemoes.dk> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netLinus Torvalds authored
Pull networking fixes from Jakub Kicinski: "Cross-tree/merge window issues: - rtl8150: don't incorrectly assign random MAC addresses; fix late in the 5.9 cycle started depending on a return code from a function which changed with the 5.10 PR from the usb subsystem Current release regressions: - Revert "virtio-net: ethtool configurable RXCSUM", it was causing crashes at probe when control vq was not negotiated/available Previous release regressions: - ixgbe: fix probing of multi-port 10 Gigabit Intel NICs with an MDIO bus, only first device would be probed correctly - nexthop: Fix performance regression in nexthop deletion by effectively switching from recently added synchronize_rcu() to synchronize_rcu_expedited() - netsec: ignore 'phy-mode' device property on ACPI systems; the property is not populated correctly by the firmware, but firmware configures the PHY so just keep boot settings Previous releases - always broken: - tcp: fix to update snd_wl1 in bulk receiver fast path, addressing bulk transfers getting "stuck" - icmp: randomize the global rate limiter to prevent attackers from getting useful signal - r8169: fix operation under forced interrupt threading, make the driver always use hard irqs, even on RT, given the handler is light and only wants to schedule napi (and do so through a _irqoff() variant, preferably) - bpf: Enforce pointer id generation for all may-be-null register type to avoid pointers erroneously getting marked as null-checked - tipc: re-configure queue limit for broadcast link - net/sched: act_tunnel_key: fix OOB write in case of IPv6 ERSPAN tunnels - fix various issues in chelsio inline tls driver Misc: - bpf: improve just-added bpf_redirect_neigh() helper api to support supplying nexthop by the caller - in case BPF program has already done a lookup we can avoid doing another one - remove unnecessary break statements - make MCTCP not select IPV6, but rather depend on it" * tag 'net-5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (62 commits) tcp: fix to update snd_wl1 in bulk receiver fast path net: Properly typecast int values to set sk_max_pacing_rate netfilter: nf_fwd_netdev: clear timestamp in forwarding path ibmvnic: save changed mac address to adapter->mac_addr selftests: mptcp: depends on built-in IPv6 Revert "virtio-net: ethtool configurable RXCSUM" rtnetlink: fix data overflow in rtnl_calcit() net: ethernet: mtk-star-emac: select REGMAP_MMIO net: hdlc_raw_eth: Clear the IFF_TX_SKB_SHARING flag after calling ether_setup net: hdlc: In hdlc_rcv, check to make sure dev is an HDLC device bpf, libbpf: Guard bpf inline asm from bpf_tail_call_static bpf, selftests: Extend test_tc_redirect to use modified bpf_redirect_neigh() bpf: Fix bpf_redirect_neigh helper api to support supplying nexthop mptcp: depends on IPV6 but not as a module sfc: move initialisation of efx->filter_sem to efx_init_struct() mpls: load mpls_gso after mpls_iptunnel net/sched: act_tunnel_key: fix OOB write in case of IPv6 ERSPAN tunnels net/sched: act_gate: Unlock ->tcfa_lock in tc_setup_flow_action() net: dsa: bcm_sf2: make const array static, makes object smaller mptcp: MPTCP_IPV6 should depend on IPV6 instead of selecting it ...
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git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2Linus Torvalds authored
Pull gfs2 updates from Andreas Gruenbacher: - Use iomap for non-journaled buffered I/O. This largely eliminates buffer heads on filesystems where the block size matches the page size. Many thanks to Christoph Hellwig for this patch! - Fixes for some more journaled data filesystem bugs, found by running xfstests with data journaling on for all files (chattr +j $MNT) (Bob Peterson) - gfs2_evict_inode refactoring (Bob Peterson) - Use the statfs data in the journal during recovery instead of reading it in from the local statfs inodes (Abhi Das) - Several other minor fixes by various people * tag 'gfs2-for-5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2: (30 commits) gfs2: Recover statfs info in journal head gfs2: lookup local statfs inodes prior to journal recovery gfs2: Add fields for statfs info in struct gfs2_log_header_host gfs2: Ignore subsequent errors after withdraw in rgrp_go_sync gfs2: Eliminate gl_vm gfs2: Only access gl_delete for iopen glocks gfs2: Fix comments to glock_hash_walk gfs2: eliminate GLF_QUEUED flag in favor of list_empty(gl_holders) gfs2: Ignore journal log writes for jdata holes gfs2: simplify gfs2_block_map gfs2: Only set PageChecked if we have a transaction gfs2: don't lock sd_ail_lock in gfs2_releasepage gfs2: make gfs2_ail1_empty_one return the count of active items gfs2: Wipe jdata and ail1 in gfs2_journal_wipe, formerly gfs2_meta_wipe gfs2: enhance log_blocks trace point to show log blocks free gfs2: add missing log_blocks trace points in gfs2_write_revokes gfs2: rename gfs2_write_full_page to gfs2_write_jdata_page, remove parm gfs2: add validation checks for size of superblock gfs2: use-after-free in sysfs deregistration gfs2: Fix NULL pointer dereference in gfs2_rgrp_dump ...
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git://git.samba.org/sfrench/cifs-2.6Linus Torvalds authored
Pull cifs updates from Steve French: - add support for recognizing special file types (char/block/fifo/ symlink) for files created by Linux on WSL (a format we plan to move to as the default for creating special files on Linux, as it has advantages over the other current option, the SFU format) in readdir. - fix double queries to root directory when directory leases not supported (e.g. Samba) - fix querying mode bits (modefromsid mount option) for special file types - stronger encryption (gcm256), disabled by default until tested more broadly - allow querying owner when server reports 'well known SID' on query dir with SMB3.1.1 POSIX extensions * tag '5.10-rc-smb3-fixes-part1' of git://git.samba.org/sfrench/cifs-2.6: (30 commits) SMB3: add support for recognizing WSL reparse tags cifs: remove bogus debug code smb3.1.1: fix typo in compression flag cifs: move smb version mount options into fs_context.c cifs: move cache mount options to fs_context.ch cifs: move security mount options into fs_context.ch cifs: add files to host new mount api smb3: do not try to cache root directory if dir leases not supported smb3: fix stat when special device file and mounted with modefromsid cifs: Print the address and port we are connecting to in generic_ip_connect() SMB3: Resolve data corruption of TCP server info fields cifs: make const array static, makes object smaller SMB3.1.1: Fix ids returned in POSIX query dir smb3: add dynamic trace point to trace when credits obtained smb3.1.1: do not fail if no encryption required but server doesn't support it cifs: Return the error from crypt_message when enc/dec key not found. smb3.1.1: set gcm256 when requested smb3.1.1: rename nonces used for GCM and CCM encryption smb3.1.1: print warning if server does not support requested encryption type smb3.1.1: add new module load parm enable_gcm_256 ...
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git://git.kernel.org/pub/scm/fs/xfs/xfs-linuxLinus Torvalds authored
Pull clone/dedupe/remap code refactoring from Darrick Wong: "Move the generic file range remap (aka reflink and dedupe) functions out of mm/filemap.c and fs/read_write.c and into fs/remap_range.c to reduce clutter in the first two files" * tag 'vfs-5.10-merge-1' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux: vfs: move the generic write and copy checks out of mm vfs: move the remap range helpers to remap_range.c vfs: move generic_remap_checks out of mm
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git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds authored
Pull KVM updates from Paolo Bonzini: "For x86, there is a new alternative and (in the future) more scalable implementation of extended page tables that does not need a reverse map from guest physical addresses to host physical addresses. For now it is disabled by default because it is still lacking a few of the existing MMU's bells and whistles. However it is a very solid piece of work and it is already available for people to hammer on it. Other updates: ARM: - New page table code for both hypervisor and guest stage-2 - Introduction of a new EL2-private host context - Allow EL2 to have its own private per-CPU variables - Support of PMU event filtering - Complete rework of the Spectre mitigation PPC: - Fix for running nested guests with in-kernel IRQ chip - Fix race condition causing occasional host hard lockup - Minor cleanups and bugfixes x86: - allow trapping unknown MSRs to userspace - allow userspace to force #GP on specific MSRs - INVPCID support on AMD - nested AMD cleanup, on demand allocation of nested SVM state - hide PV MSRs and hypercalls for features not enabled in CPUID - new test for MSR_IA32_TSC writes from host and guest - cleanups: MMU, CPUID, shared MSRs - LAPIC latency optimizations ad bugfixes" * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (232 commits) kvm: x86/mmu: NX largepage recovery for TDP MMU kvm: x86/mmu: Don't clear write flooding count for direct roots kvm: x86/mmu: Support MMIO in the TDP MMU kvm: x86/mmu: Support write protection for nesting in tdp MMU kvm: x86/mmu: Support disabling dirty logging for the tdp MMU kvm: x86/mmu: Support dirty logging for the TDP MMU kvm: x86/mmu: Support changed pte notifier in tdp MMU kvm: x86/mmu: Add access tracking for tdp_mmu kvm: x86/mmu: Support invalidate range MMU notifier for TDP MMU kvm: x86/mmu: Allocate struct kvm_mmu_pages for all pages in TDP MMU kvm: x86/mmu: Add TDP MMU PF handler kvm: x86/mmu: Remove disallowed_hugepage_adjust shadow_walk_iterator arg kvm: x86/mmu: Support zapping SPTEs in the TDP MMU KVM: Cache as_id in kvm_memory_slot kvm: x86/mmu: Add functions to handle changed TDP SPTEs kvm: x86/mmu: Allocate and free TDP MMU roots kvm: x86/mmu: Init / Uninit the TDP MMU kvm: x86/mmu: Introduce tdp_iter KVM: mmu: extract spte.h and spte.c KVM: mmu: Separate updating a PTE from kvm_set_pte_rmapp ...
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git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhostLinus Torvalds authored
Pull virtio updates from Michael Tsirkin: "vhost, vdpa, and virtio cleanups and fixes A very quiet cycle, no new features" * tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost: MAINTAINERS: add URL for virtio-mem vhost_vdpa: remove unnecessary spin_lock in vhost_vring_call vringh: fix __vringh_iov() when riov and wiov are different vdpa/mlx5: Setup driver only if VIRTIO_CONFIG_S_DRIVER_OK s390: virtio: PV needs VIRTIO I/O device protection virtio: let arch advertise guest's memory access restrictions vhost_vdpa: Fix duplicate included kernel.h vhost: reduce stack usage in log_used virtio-mem: Constify mem_id_table virtio_input: Constify id_table virtio-balloon: Constify id_table vdpa/mlx5: Fix failure to bring link up vdpa/mlx5: Make use of a specific 16 bit endianness API
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Linus Torvalds authored
Merge tag 'tag-chrome-platform-for-v5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/chrome-platform/linux Pull chrome platform updates from Benson Leung: "cros-ec: - Error code cleanup across cros-ec by Guenter - Remove cros_ec_cmd_xfer in favor of cros_ec_cmd_xfer_status cros_ec_typec: - Landed initial USB4 support in typec connector class driver for cros_ec - Role switch bugfix on disconnect, and reordering configuration steps cros_ec_lightbar: - Fix buffer outsize and result for get_lightbar_version misc: - Remove config MFD_CROS_EC, now that transition from MFD is complete - Enable KEY_LEFTMETA in new location on arm based cros-ec-keyboard keymap" * tag 'tag-chrome-platform-for-v5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/chrome-platform/linux: ARM: dts: cros-ec-keyboard: Add alternate keymap for KEY_LEFTMETA platform/chrome: Use kobj_to_dev() instead of container_of() platform/chrome: cros_ec_proto: Drop cros_ec_cmd_xfer() platform/chrome: cros_ec_proto: Update cros_ec_cmd_xfer() call-sites platform/chrome: Kconfig: Remove the transitional MFD_CROS_EC config platform/chrome: cros_ec_lightbar: Reduce ligthbar get version command platform/chrome: cros_ec_trace: Add fields to command traces platform/chrome: cros_ec_typec: Re-order connector configuration steps platform/chrome: cros_ec_typec: Avoid setting usb role twice during disconnect platform/chrome: cros_ec_typec: Send enum values to usb_role_switch_set_role() platform/chrome: cros_ec_typec: USB4 support pwm: cros-ec: Simplify EC error handling platform/chrome: cros_ec_proto: Convert EC error codes to Linux error codes platform/input: cros_ec: Replace -ENOTSUPP with -ENOPROTOOPT pwm: cros-ec: Accept more error codes from cros_ec_cmd_xfer_status platform/chrome: cros_ec_sysfs: Report range of error codes from EC cros_ec_lightbar: Accept more error codes from cros_ec_cmd_xfer_status iio: cros_ec: Accept -EOPNOTSUPP as 'not supported' error code
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git://git.kernel.dk/linux-blockLinus Torvalds authored
Pull arch task_work cleanups from Jens Axboe: "Two cleanups that don't fit other categories: - Finally get the task_work_add() cleanup done properly, so we don't have random 0/1/false/true/TWA_SIGNAL confusing use cases. Updates all callers, and also fixes up the documentation for task_work_add(). - While working on some TIF related changes for 5.11, this TIF_NOTIFY_RESUME cleanup fell out of that. Remove some arch duplication for how that is handled" * tag 'arch-cleanup-2020-10-22' of git://git.kernel.dk/linux-block: task_work: cleanup notification modes tracehook: clear TIF_NOTIFY_RESUME in tracehook_notify_resume()
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git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arcLinus Torvalds authored
Pull ARC fix from Vineet Gupta: "I found a snafu in perf driver which made it into 5.9-rc4 and the fix should go in now than wait" * tag 'arc-5.10-rc1-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc: ARC: perf: redo the pct irq missing in device-tree handling
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git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linuxLinus Torvalds authored
Pull more arm64 updates from Will Deacon: "A small selection of further arm64 fixes and updates. Most of these are fixes that came in during the merge window, with the exception of the HAVE_MOVE_PMD mremap() speed-up which we discussed back in 2018 and somehow forgot to enable upstream. - Improve performance of Spectre-v2 mitigation on Falkor CPUs (if you're lucky enough to have one) - Select HAVE_MOVE_PMD. This has been shown to improve mremap() performance, which is used heavily by the Android runtime GC, and it seems we forgot to enable this upstream back in 2018. - Ensure linker flags are consistent between LLVM and BFD - Fix stale comment in Spectre mitigation rework - Fix broken copyright header - Fix KASLR randomisation of the linear map - Prevent arm64-specific prctl()s from compat tasks (return -EINVAL)" Link: https://lore.kernel.org/kvmarm/20181108181201.88826-3-joelaf@google.com/ * tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: arm64: proton-pack: Update comment to reflect new function name arm64: spectre-v2: Favour CPU-specific mitigation at EL2 arm64: link with -z norelro regardless of CONFIG_RELOCATABLE arm64: Fix a broken copyright header in gen_vdso_offsets.sh arm64: mremap speedup - Enable HAVE_MOVE_PMD arm64: mm: use single quantity to represent the PA to VA translation arm64: reject prctl(PR_PAC_RESET_KEYS) on compat tasks
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Rafael J. Wysocki authored
* acpi-debug: ACPI: debug: don't allow debugging when ACPI is disabled * acpi-reboot: ACPI: reboot: Avoid racing after writing to ACPI RESET_REG * acpi-processor: ACPI: processor: remove comment regarding string _UID support * acpi-dptf: ACPI: DPTF: Add ACPI_DPTF Kconfig menu ACPI: DPTF: Fix participant driver names * acpi-utils: ACPI: utils: remove unreachable breaks
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Rafael J. Wysocki authored
* pm-avs: PM: AVS: Drop the avs directory and the corresponding Kconfig PM: AVS: qcom-cpr: Move the driver to the qcom specific drivers PM: AVS: smartreflex Move driver to soc specific drivers PM: AVS: rockchip-io: Move the driver to the rockchip specific drivers
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Rafael J. Wysocki authored
* pm-core: PM: runtime: Fix typo in pm_runtime_set_active() helper comment * pm-sleep: PM: sleep: remove unreachable break * pm-tools: cpupower: speed up generating git version string cpupowerutils: fix spelling mistake "dependant" -> "dependent" * powercap: powercap: Fix typo in Kconfig "Plance" -> "Plane" powercap/intel_rapl: enumerate Psys RAPL domain together with package RAPL domain powercap/intel_rapl: Fix domain detection
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Rafael J. Wysocki authored
* pm-cpufreq: cpufreq: schedutil: restore cached freq when next_f is not changed acpi-cpufreq: Honor _PSD table setting on new AMD CPUs cpufreq: intel_pstate: Delete intel_pstate sysfs if failed to register the driver cpufreq: Improve code around unlisted freq check * pm-cpuidle: intel_idle: Ignore _CST if control cannot be taken from the platform cpuidle: Remove pointless stub intel_idle: mention assumption that WBINVD is not needed MAINTAINERS: Add section for cpuidle-psci PM domain
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- Oct 23, 2020
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Abhi Das authored
Apply the outstanding statfs changes in the journal head to the master statfs file. Zero out the local statfs file for good measure. Previously, statfs updates would be read in from the local statfs inode and synced to the master statfs inode during recovery. We now use the statfs updates in the journal head to update the master statfs inode instead of reading in from the local statfs inode. To preserve backward compatibility with kernels that can't do this, we still need to keep the local statfs inode up to date by writing changes to it. At some point in the future, we can do away with the local statfs inodes altogether and keep the statfs changes solely in the journal. Signed-off-by:
Abhi Das <adas@redhat.com> Signed-off-by:
Andreas Gruenbacher <agruenba@redhat.com>
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Abhi Das authored
We need to lookup the master statfs inode and the local statfs inodes earlier in the mount process (in init_journal) so journal recovery can use them when it attempts to recover the statfs info. We lookup all the local statfs inodes and store them in a linked list to allow a node to recover statfs info for other nodes in the cluster. Signed-off-by:
Abhi Das <adas@redhat.com> Signed-off-by:
Andreas Gruenbacher <agruenba@redhat.com>
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Ben Gardon authored
When KVM maps a largepage backed region at a lower level in order to make it executable (i.e. NX large page shattering), it reduces the TLB performance of that region. In order to avoid making this degradation permanent, KVM must periodically reclaim shattered NX largepages by zapping them and allowing them to be rebuilt in the page fault handler. With this patch, the TDP MMU does not respect KVM's rate limiting on reclaim. It traverses the entire TDP structure every time. This will be addressed in a future patch. Tested by running kvm-unit-tests and KVM selftests on an Intel Haswell machine. This series introduced no new failures. This series can be viewed in Gerrit at: https://linux-review.googlesource.com/c/virt/kvm/kvm/+/2538 Signed-off-by:
Ben Gardon <bgardon@google.com> Message-Id: <20201014182700.2888246-21-bgardon@google.com> Signed-off-by:
Paolo Bonzini <pbonzini@redhat.com>
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Ben Gardon authored
Direct roots don't have a write flooding count because the guest can't affect that paging structure. Thus there's no need to clear the write flooding count on a fast CR3 switch for direct roots. Tested by running kvm-unit-tests and KVM selftests on an Intel Haswell machine. This series introduced no new failures. This series can be viewed in Gerrit at: https://linux-review.googlesource.com/c/virt/kvm/kvm/+/2538 Signed-off-by:
Ben Gardon <bgardon@google.com> Message-Id: <20201014182700.2888246-20-bgardon@google.com> Signed-off-by:
Paolo Bonzini <pbonzini@redhat.com>
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Ben Gardon authored
In order to support MMIO, KVM must be able to walk the TDP paging structures to find mappings for a given GFN. Support this walk for the TDP MMU. Tested by running kvm-unit-tests and KVM selftests on an Intel Haswell machine. This series introduced no new failures. This series can be viewed in Gerrit at: https://linux-review.googlesource.com/c/virt/kvm/kvm/+/2538 v2: Thanks to Dan Carpenter and kernel test robot for finding that root was used uninitialized in get_mmio_spte. Signed-off-by:
Ben Gardon <bgardon@google.com> Reported-by:
kernel test robot <lkp@intel.com> Reported-by:
Dan Carpenter <dan.carpenter@oracle.com> Message-Id: <20201014182700.2888246-19-bgardon@google.com> Signed-off-by:
Paolo Bonzini <pbonzini@redhat.com>
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Ben Gardon authored
To support nested virtualization, KVM will sometimes need to write protect pages which are part of a shadowed paging structure or are not writable in the shadowed paging structure. Add a function to write protect GFN mappings for this purpose. Tested by running kvm-unit-tests and KVM selftests on an Intel Haswell machine. This series introduced no new failures. This series can be viewed in Gerrit at: https://linux-review.googlesource.com/c/virt/kvm/kvm/+/2538 Signed-off-by:
Ben Gardon <bgardon@google.com> Message-Id: <20201014182700.2888246-18-bgardon@google.com> Signed-off-by:
Paolo Bonzini <pbonzini@redhat.com>
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Ben Gardon authored
Dirty logging ultimately breaks down MMU mappings to 4k granularity. When dirty logging is no longer needed, these granaular mappings represent a useless performance penalty. When dirty logging is disabled, search the paging structure for mappings that could be re-constituted into a large page mapping. Zap those mappings so that they can be faulted in again at a higher mapping level. Tested by running kvm-unit-tests and KVM selftests on an Intel Haswell machine. This series introduced no new failures. This series can be viewed in Gerrit at: https://linux-review.googlesource.com/c/virt/kvm/kvm/+/2538 Signed-off-by:
Ben Gardon <bgardon@google.com> Message-Id: <20201014182700.2888246-17-bgardon@google.com> Signed-off-by:
Paolo Bonzini <pbonzini@redhat.com>
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Ben Gardon authored
Dirty logging is a key feature of the KVM MMU and must be supported by the TDP MMU. Add support for both the write protection and PML dirty logging modes. Tested by running kvm-unit-tests and KVM selftests on an Intel Haswell machine. This series introduced no new failures. This series can be viewed in Gerrit at: https://linux-review.googlesource.com/c/virt/kvm/kvm/+/2538 Signed-off-by:
Ben Gardon <bgardon@google.com> Message-Id: <20201014182700.2888246-16-bgardon@google.com> Signed-off-by:
Paolo Bonzini <pbonzini@redhat.com>
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Ben Gardon authored
In order to interoperate correctly with the rest of KVM and other Linux subsystems, the TDP MMU must correctly handle various MMU notifiers. Add a hook and handle the change_pte MMU notifier. Tested by running kvm-unit-tests and KVM selftests on an Intel Haswell machine. This series introduced no new failures. This series can be viewed in Gerrit at: https://linux-review.googlesource.com/c/virt/kvm/kvm/+/2538 Signed-off-by:
Ben Gardon <bgardon@google.com> Message-Id: <20201014182700.2888246-15-bgardon@google.com> Signed-off-by:
Paolo Bonzini <pbonzini@redhat.com>
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Ben Gardon authored
In order to interoperate correctly with the rest of KVM and other Linux subsystems, the TDP MMU must correctly handle various MMU notifiers. The main Linux MM uses the access tracking MMU notifiers for swap and other features. Add hooks to handle the test/flush HVA (range) family of MMU notifiers. Tested by running kvm-unit-tests and KVM selftests on an Intel Haswell machine. This series introduced no new failures. This series can be viewed in Gerrit at: https://linux-review.googlesource.com/c/virt/kvm/kvm/+/2538 Signed-off-by:
Ben Gardon <bgardon@google.com> Message-Id: <20201014182700.2888246-14-bgardon@google.com> Signed-off-by:
Paolo Bonzini <pbonzini@redhat.com>
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Ben Gardon authored
In order to interoperate correctly with the rest of KVM and other Linux subsystems, the TDP MMU must correctly handle various MMU notifiers. Add hooks to handle the invalidate range family of MMU notifiers. Tested by running kvm-unit-tests and KVM selftests on an Intel Haswell machine. This series introduced no new failures. This series can be viewed in Gerrit at: https://linux-review.googlesource.com/c/virt/kvm/kvm/+/2538 Signed-off-by:
Ben Gardon <bgardon@google.com> Message-Id: <20201014182700.2888246-13-bgardon@google.com> Signed-off-by:
Paolo Bonzini <pbonzini@redhat.com>
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Ben Gardon authored
Attach struct kvm_mmu_pages to every page in the TDP MMU to track metadata, facilitate NX reclaim, and enable inproved parallelism of MMU operations in future patches. Tested by running kvm-unit-tests and KVM selftests on an Intel Haswell machine. This series introduced no new failures. This series can be viewed in Gerrit at: https://linux-review.googlesource.com/c/virt/kvm/kvm/+/2538 Signed-off-by:
Ben Gardon <bgardon@google.com> Message-Id: <20201014182700.2888246-12-bgardon@google.com> Signed-off-by:
Paolo Bonzini <pbonzini@redhat.com>
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Ben Gardon authored
Add functions to handle page faults in the TDP MMU. These page faults are currently handled in much the same way as the x86 shadow paging based MMU, however the ordering of some operations is slightly different. Future patches will add eager NX splitting, a fast page fault handler, and parallel page faults. Tested by running kvm-unit-tests and KVM selftests on an Intel Haswell machine. This series introduced no new failures. This series can be viewed in Gerrit at: https://linux-review.googlesource.com/c/virt/kvm/kvm/+/2538 Signed-off-by:
Ben Gardon <bgardon@google.com> Message-Id: <20201014182700.2888246-11-bgardon@google.com> Signed-off-by:
Paolo Bonzini <pbonzini@redhat.com>
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Dave Airlie authored
Merge tag 'drm-intel-next-fixes-2020-10-22' of git://anongit.freedesktop.org/drm/drm-intel into drm-next - Tweak initia DPCD backlight.enabled value (Sean) - Initialize reserved MOCS indices (Ayaz) - Mark initial fb obj as WT on eLLC machines to avoid rcu lockup (Ville) - Support parsing of oversize batches (Chris) - Delay execlists processing for TGL (Chris) - Use the active reference on the vma during error capture (Chris) - Widen CSB pointer (Chris) - Wait for CSB entries on TGL (Chris) - Fix unwind for scratch page allocation (Chris) - Exclude low patches of stolen memory (Chris) - Force VT'd workarounds when running as a guest OS (Chris) - Drop runtime-pm assert from vpgu io accessors (Chris) Signed-off-by:
Dave Airlie <airlied@redhat.com> From: Rodrigo Vivi <rodrigo.vivi@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20201022205613.GA3469192@intel.com
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Dave Airlie authored
Merge tag 'amd-drm-fixes-5.10-2020-10-21' of git://people.freedesktop.org/~agd5f/linux into drm-next amd-drm-fixes-5.10-2020-10-21: amdgpu: - Sienna Cichlid fixes - MST manager resource leak fix - GPU reset fix amdkfd: - Luxmark fix for Navi1x Signed-off-by:
Dave Airlie <airlied@redhat.com> From: Alex Deucher <alexdeucher@gmail.com> Link: https://patchwork.freedesktop.org/patch/msgid/20201022040322.4183-1-alexander.deucher@amd.com
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Fam Zheng authored
Both seem overlooked while adding the section in the main content. Signed-off-by:
Fam Zheng <famzheng@amazon.com> Link: https://lore.kernel.org/r/20201022065403.3936070-1-fam@euphon.net Signed-off-by:
Jonathan Corbet <corbet@lwn.net>
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Colin Ian King authored
Fix several spelling mistakes in vm documentation. Signed-off-by:
Colin Ian King <colin.king@canonical.com> Link: https://lore.kernel.org/r/20201022142653.254429-1-colin.king@canonical.com Signed-off-by:
Jonathan Corbet <corbet@lwn.net>
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