MDSv6
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- v6 Latest43 patches 24 repliesIn review
Patches in v6 No applies recorded yet
| # | Subject and files | Size | Replies | Applied |
|---|---|---|---|---|
| 1/43 | MDSv6arch/ arch/ arch/ | +15 | 0 replies | |
| 2/43 | MDSv6arch/ arch/ arch/ +1 more | +31 | 0 replies | |
| 3/43 | MDSv6arch/ arch/ arch/ +5 more | +41 | 0 replies | |
| 4/43 | MDSv6Documentation/ arch/ arch/ +1 more | +44 | 0 replies | |
| 5/43 | MDSv6Documentation/ arch/ drivers/ | +33 | 0 replies | |
| 6/43 | MDSv6Documentation/ | +95 | 0 replies | |
| 7/43 | MDSv6arch/ | +2 | 0 replies | |
| 8/43 | MDSv6arch/ arch/ arch/ +1 more | +9 | 0 replies | |
| 9/43 | MDSv6arch/ arch/ arch/ +1 more | +35 | 0 replies | |
| 10/43 | MDSv6Documentation/ | +261 | 6 replies | |
| 11/43 | MDSv6arch/ arch/ arch/ +2 more | +53 | 0 replies | |
| 12/43 | MDSv6arch/ arch/ arch/ +1 more | +14 | 0 replies | |
| 13/43 | MDSv6arch/ | +5 | 0 replies | |
| 14/43 | MDSv6arch/ arch/ arch/ | +78 | 0 replies | |
| 15/43 | MDSv6arch/ arch/ | +15 | 0 replies | |
| 16/43 | MDSv6kernel/ | +9 | 0 replies | |
| 17/43 | MDSv6lib/ mm/ | +10 | 0 replies | |
| 18/43 | MDSv6include/ kernel/ kernel/ | +7 | 0 replies | |
| 19/43 | MDSv6include/ kernel/ | +34 | 0 replies | |
| 20/43 | MDSv6include/ include/ kernel/ +1 more | +28 | 0 replies | |
| 21/43 | MDSv6arch/ include/ | +6 | 0 replies | |
| 22/43 | MDSv6kernel/ | +2 | 0 replies | |
| 23/43 | MDSv6include/ net/ | +34 | 0 replies | |
| 24/43 | MDSv6arch/ include/ | +5 | 0 replies | |
| 25/43 | MDSv6arch/ include/ kernel/ +1 more | +53 | 0 replies | |
| 26/43 | MDSv6lib/ | +2 | 0 replies | |
| 27/43 | MDSv6sound/ sound/ sound/ | +9 | 0 replies | |
| 28/43 | MDSv6sound/ | +2 | 0 replies | |
| 29/43 | MDSv6drivers/ drivers/ | +6 | 0 replies | |
| 30/43 | MDSv6drivers/ include/ | +8 | 0 replies | |
| 31/43 | MDSv6include/ | +4 | 9 replies | |
| 32/43 | MDSv6drivers/ drivers/ drivers/ | +6 | 0 replies | |
| 33/43 | MDSv6drivers/ | +3 | 0 replies | |
| 34/43 | MDSv6drivers/ | +2 | 0 replies | |
| 35/43 | MDSv6drivers/ | +2 | 0 replies | |
| 36/43 | MDSv6drivers/ drivers/ | +4 | 0 replies | |
| 37/43 | MDSv6drivers/ | +1 | 0 replies | |
| 38/43 | MDSv6drivers/ | +5 | 0 replies | |
| 39/43 | MDSv6drivers/ | +3 | 9 replies | |
| 40/43 | MDSv6arch/ | +1 | 0 replies | |
| 41/43 | MDSv6arch/ drivers/ drivers/ +475 more | +1084 | 0 replies | |
| 42/43 | MDSv6arch/ drivers/ drivers/ +87 more | +180 | 0 replies | |
| 43/43 | MDSv6drivers/ drivers/ drivers/ +76 more | +232 | 0 replies |
Reviews trailers per patch
None of the 43 patches has a Reviewed-by or Acked-by.
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Trailers given in replies are filled; those carried in the patches from earlier versions are outlined with dashes.
Cover letter [MODERATED] [PATCH v6 00/43] MDSv6
Here's a new version of flushing CPU buffers for group 4 for single thread.
I would be mainly interested in feedback on the lazy approach, so please focus on the later patches.
There didn't seem to be much interest in it, so I wonder if it still makes sense to continue with it? Or could we just stay with the full approach?
The lazy approach is faster, but not by that much and may not be worth the short and long term impact all over the tree.
This version is based on my earlier base patches, with the mds=full implementation being at the beginning, and a lazy implementation building on top of it. The patch can be rebased on the rewrite once it matures.
Even the base has some features not in Thomas' version which would need to be ported (e.g. more complete virtualization support and EBPF mitigation)
This patch implements the "full tree audit" approach that was suggested by several reviewers. We (me and Mark Gross) went through most asynchronous code in the kernel and marked the functions that touch user or IO data. This leaves most asynchronous interrupts etc. to not schedule a clear. However this would need to be continuously enforced for new code too.
It also implements various other review suggestions and improvements. clearcpu.txt is now clarified in many ways.
Before reviewing please read Documentation/clearcpu.txt
Some performance data for lazy:
Kernel build: ~+1% (slightly faster, but that's within noise)
loopback apache -1% (within noise)
ebizzy -0.3% (within noise)
aim7 -5.0%
netperf rr -0.7%
netperf stream 0.0%
In comparison an older version of mds=full showed:
kernel build -2.4%
ebizzy -3.3%
apache loopback -10.0%
For networking workloads there is practically no regression now. AIM7 is showing some regression. I assume this is due to the context switch overhead.
mds=full is a bit slower, but not that much. The only real outlier is apache loopback, which is probably not too realistic a workload because it mainly does tight loops over some syscalls.
No changelog against previous versions, too many changes.
Andi Kleen (42):
x86/speculation/mds: Add basic bug infrastructure for MDS x86/speculation/mds: Clear CPU on every kernel exit x86/speculation/mds: Clear CPU buffers on entering idle x86/speculation/mds: Add command line options to control mds x86/speculation/mds: Add sysfs reporting
mds: Add some administrator documentation x86/speculation/mds: Export MD_CLEAR CPUID to KVM guests. x86/cpufeatures: Add word 20 for additional features x86/speculation/mds: Handle VMENTRY clear for CPUs without l1tf
mds: Add documentation for clear cpu usage x86/speculation/mds: Introduce lazy_clear_cpu x86/speculation/mds: Add basic implementation of mds=full x86/speculation/mds: Check lazy clear in kernel exit x86/speculation/mds: Add tracing for clear_cpu x86/speculation/mds: Schedule cpu clear on context switch
mds: Force clear cpu on kernel preemption
mds: Clear cpu in memzero_explicit and kzfree
mds: Support cpu clear in interrupts
mds: Support cpu clear after tasklets
mds: Support cpu clearing in timers
mds: Clear cpu for string io/memcpy_*io in interrupts
mds: Schedule clear cpu in swiotlb
mds: Instrument skb functions to clear cpu automatically
mds: Clear cpu for kmap_atomic in interrupts
mds: Support cpu clearing for BPF
mds sweep: Schedule clear cpus in sound core
mds sweep: Make MPU401 interrupts clear cpu
mds sweep: Clear cpu on processing input layer data mds sweep: Clear cpu for tty input
mds sweep: Clear cpu for usbmon intercepts
mds sweep: Clear cpu in some Xen drivers
mds sweep: Clear cpu in DVB software filters
mds sweep: Mark all DRM interrupts to clear cpu
mds sweep: Make all old style IDE driver interrupts clear cpu mds sweep: Make Amazon ena driver management interrupt clear cpu mds sweep: Make all PCMCIA interrupts clear cpu
mds sweep: Mark common functions in comedi as clear cpu mds sweep: Make usb hcd poll clear cpu x86/speculation/mds: Switch mds=auto to lazy
mds sweep: Mark interrupts that touch user data
mds sweep: Mark timer handlers that touch user data mds sweep: Mark tasklets that touch user data
Mark Gross (1):
mds sweep: Clear cpu in sg_copy_from_buffer for SCSI
.../ABI/testing/sysfs-devices-system-cpu | 1 + .../admin-guide/kernel-parameters.txt | 11 + Documentation/admin-guide/mds.rst | 95 +++++++ Documentation/clearcpu.txt | 261 ++++++++++++++++++ arch/Kconfig | 3 + arch/x86/Kconfig | 1 + arch/x86/entry/common.c | 8 + arch/x86/events/intel/uncore.c | 3 +- arch/x86/include/asm/clearbpf.h | 29 ++ arch/x86/include/asm/clearcpu.h | 83 ++++++ arch/x86/include/asm/cpufeature.h | 6 +- arch/x86/include/asm/cpufeatures.h | 9 +- arch/x86/include/asm/disabled-features.h | 3 +- arch/x86/include/asm/floppy.h | 6 +- arch/x86/include/asm/io.h | 3 + arch/x86/include/asm/msr-index.h | 1 + arch/x86/include/asm/required-features.h | 3 +- arch/x86/include/asm/trace/clearcpu.h | 27 ++ arch/x86/kernel/acpi/cstate.c | 2 + arch/x86/kernel/cpu/bugs.c | 82 ++++++ arch/x86/kernel/cpu/common.c | 25 ++ arch/x86/kernel/kvm.c | 3 + arch/x86/kernel/nmi.c | 6 +- arch/x86/kernel/process.c | 5 + arch/x86/kernel/process.h | 1 + arch/x86/kernel/smpboot.c | 3 + arch/x86/kvm/cpuid.c | 3 +- arch/x86/kvm/vmx/vmx.c | 20 +- arch/x86/mm/highmem_32.c | 3 + arch/x86/mm/tlb.c | 14 + drivers/acpi/acpi_pad.c | 2 + drivers/acpi/processor_idle.c | 3 + drivers/atm/eni.c | 3 +- drivers/atm/he.c | 3 +- drivers/atm/lanai.c | 4 +- drivers/atm/nicstar.c | 4 +- drivers/auxdisplay/img-ascii-lcd.c | 2 +- drivers/base/cpu.c | 8 + drivers/block/xsysace.c | 5 +- drivers/char/ipmi/ipmi_si_intf.c | 6 +- drivers/char/sonypi.c | 3 +- drivers/crypto/ixp4xx_crypto.c | 3 +- drivers/crypto/qat/qat_common/adf_isr.c | 7 +- drivers/crypto/qat/qat_common/adf_sriov.c | 6 +- drivers/crypto/qat/qat_common/adf_vf_isr.c | 10 +- drivers/dma/dw/core.c | 3 +- drivers/dma/ioat/init.c | 3 +- drivers/dma/virt-dma.c | 3 +- drivers/firewire/core-transaction.c | 5 +- drivers/firewire/nosy.c | 3 +- drivers/gpu/drm/drm_irq.c | 3 +- drivers/gpu/drm/gma500/oaktrail_hdmi_i2c.c | 3 +- drivers/gpu/drm/i915/i915_pmu.c | 3 +- drivers/gpu/drm/i915/intel_lrc.c | 5 +- .../gpu/drm/nouveau/nvkm/subdev/pci/base.c | 3 +- drivers/hv/channel_mgmt.c | 4 +- drivers/hv/hv.c | 4 +- drivers/i2c/busses/i2c-emev2.c | 5 +- drivers/i2c/busses/i2c-i801.c | 2 +- drivers/i2c/busses/i2c-pxa.c | 4 +- drivers/i2c/busses/i2c-rk3x.c | 3 +- drivers/ide/ide-probe.c | 5 +- drivers/idle/intel_idle.c | 5 + drivers/iio/trigger/iio-trig-hrtimer.c | 3 +- drivers/infiniband/hw/bnxt_re/qplib_fp.c | 4 +- drivers/infiniband/hw/bnxt_re/qplib_rcfw.c | 4 +- drivers/infiniband/hw/i40iw/i40iw_main.c | 9 +- drivers/infiniband/hw/mthca/mthca_eq.c | 14 +- drivers/infiniband/hw/qib/qib_sdma.c | 4 +- drivers/infiniband/sw/rxe/rxe_cq.c | 3 +- drivers/input/ff-memless.c | 2 +- drivers/input/input.c | 5 +- drivers/input/misc/xen-kbdfront.c | 3 +- drivers/input/serio/hil_mlc.c | 2 +- drivers/input/serio/i8042.c | 13 +- drivers/input/serio/serio.c | 3 + drivers/ipack/carriers/tpci200.c | 6 +- drivers/isdn/capi/capidrv.c | 2 +- drivers/isdn/gigaset/bas-gigaset.c | 8 +- drivers/isdn/gigaset/common.c | 4 +- drivers/isdn/gigaset/ser-gigaset.c | 4 +- drivers/isdn/gigaset/usb-gigaset.c | 4 +- drivers/isdn/hardware/avm/b1isa.c | 4 +- drivers/isdn/hardware/avm/b1pci.c | 6 +- drivers/isdn/hardware/avm/b1pcmcia.c | 3 +- drivers/isdn/hardware/avm/c4.c | 3 +- drivers/isdn/hardware/avm/t1isa.c | 4 +- drivers/isdn/hardware/avm/t1pci.c | 3 +- drivers/isdn/hardware/mISDN/avmfritz.c | 4 +- drivers/isdn/hardware/mISDN/hfcmulti.c | 3 +- drivers/isdn/hardware/mISDN/hfcpci.c | 2 +- drivers/isdn/hardware/mISDN/mISDNinfineon.c | 3 +- drivers/isdn/hardware/mISDN/netjet.c | 2 +- drivers/isdn/hardware/mISDN/speedfax.c | 3 +- drivers/isdn/hardware/mISDN/w6692.c | 2 +- drivers/isdn/hisax/config.c | 2 +- drivers/isdn/hisax/hfc4s8s_l1.c | 3 +- drivers/isdn/hisax/hisax_fcpcipnp.c | 13 +- drivers/isdn/i4l/isdn_common.c | 2 +- drivers/media/cec/cec-pin.c | 3 +- drivers/media/common/saa7146/saa7146_core.c | 4 +- drivers/media/dvb-core/dvb_demux.c | 3 + drivers/media/pci/b2c2/flexcop-pci.c | 3 +- drivers/media/pci/bt8xx/bttv-driver.c | 2 +- drivers/media/pci/bt8xx/bttv-input.c | 5 +- drivers/media/pci/bt8xx/dvb-bt8xx.c | 3 +- drivers/media/pci/cobalt/cobalt-driver.c | 3 +- drivers/media/pci/cx18/cx18-driver.c | 3 +- drivers/media/pci/cx25821/cx25821-core.c | 2 +- drivers/media/pci/cx88/cx88-alsa.c | 3 +- drivers/media/pci/cx88/cx88-mpeg.c | 2 +- drivers/media/pci/cx88/cx88-video.c | 2 +- drivers/media/pci/dt3155/dt3155.c | 2 +- drivers/media/pci/intel/ipu3/ipu3-cio2.c | 2 +- drivers/media/pci/ivtv/ivtv-driver.c | 3 +- drivers/media/pci/mantis/mantis_dvb.c | 3 +- drivers/media/pci/meye/meye.c | 3 +- .../pci/netup_unidvb/netup_unidvb_core.c | 3 +- drivers/media/pci/ngene/ngene-core.c | 5 +- drivers/media/pci/pluto2/pluto2.c | 3 +- drivers/media/pci/saa7134/saa7134-alsa.c | 4 +- drivers/media/pci/saa7134/saa7134-core.c | 2 +- drivers/media/pci/saa7134/saa7134-input.c | 3 +- drivers/media/pci/saa7134/saa7134-ts.c | 3 +- drivers/media/pci/saa7134/saa7134-vbi.c | 3 +- drivers/media/pci/saa7134/saa7134-video.c | 3 +- drivers/media/pci/saa7164/saa7164-core.c | 7 +- drivers/media/pci/smipcie/smipcie-main.c | 3 +- drivers/media/pci/solo6x10/solo6x10-core.c | 4 +- drivers/media/pci/sta2x11/sta2x11_vip.c | 5 +- drivers/media/pci/ttpci/av7110.c | 12 +- drivers/media/pci/ttpci/av7110_ir.c | 3 +- drivers/media/pci/ttpci/budget-ci.c | 9 +- drivers/media/pci/ttpci/budget-core.c | 3 +- drivers/media/pci/tw5864/tw5864-video.c | 4 +- drivers/media/pci/tw68/tw68-core.c | 2 +- drivers/media/pci/tw686x/tw686x-core.c | 4 +- drivers/media/platform/aspeed-video.c | 5 +- .../media/platform/marvell-ccic/cafe-driver.c | 3 +- .../media/platform/marvell-ccic/mcam-core.c | 4 +- drivers/media/radio/radio-cadet.c | 2 +- drivers/media/radio/wl128x/fmdrv_common.c | 9 +- drivers/media/rc/fintek-cir.c | 3 +- drivers/media/rc/gpio-ir-recv.c | 2 +- drivers/media/rc/img-ir/img-ir-raw.c | 2 +- drivers/media/rc/ir-hix5hd2.c | 3 +- drivers/media/rc/ir-rx51.c | 3 +- drivers/media/rc/ite-cir.c | 3 +- drivers/media/rc/nuvoton-cir.c | 3 +- drivers/media/rc/serial_ir.c | 2 +- drivers/media/rc/sir_ir.c | 3 +- drivers/media/rc/winbond-cir.c | 2 +- drivers/media/usb/au0828/au0828-video.c | 6 +- drivers/media/usb/ttusb-dec/ttusb_dec.c | 5 +- drivers/memstick/host/jmb38x_ms.c | 6 +- drivers/message/fusion/mptbase.c | 3 +- drivers/mfd/ezx-pcap.c | 4 +- drivers/misc/ibmasm/module.c | 4 +- drivers/misc/sgi-gru/grufile.c | 7 +- drivers/misc/sgi-xp/xpc_uv.c | 3 +- drivers/misc/vmw_vmci/vmci_guest.c | 8 +- drivers/mmc/host/mtk-sd.c | 3 +- drivers/mmc/host/wbsd.c | 20 +- drivers/net/appletalk/cops.c | 2 +- drivers/net/arcnet/arc-rimi.c | 2 +- drivers/net/arcnet/com20020.c | 3 +- drivers/net/arcnet/com90io.c | 3 +- drivers/net/arcnet/com90xx.c | 2 +- drivers/net/caif/caif_hsi.c | 9 +- drivers/net/can/cc770/cc770.c | 4 +- drivers/net/can/peak_canfd/peak_pciefd_main.c | 8 +- drivers/net/can/sja1000/ems_pcmcia.c | 4 +- drivers/net/can/sja1000/peak_pcmcia.c | 3 +- drivers/net/can/sja1000/sja1000.c | 5 +- drivers/net/ethernet/3com/3c509.c | 3 +- drivers/net/ethernet/3com/3c515.c | 6 +- drivers/net/ethernet/8390/axnet_cs.c | 3 +- drivers/net/ethernet/8390/ne.c | 3 +- drivers/net/ethernet/8390/ne2k-pci.c | 3 +- drivers/net/ethernet/8390/pcnet_cs.c | 3 +- drivers/net/ethernet/8390/smc-ultra.c | 3 +- drivers/net/ethernet/8390/wd.c | 3 +- drivers/net/ethernet/agere/et131x.c | 4 +- drivers/net/ethernet/amazon/ena/ena_netdev.c | 5 +- drivers/net/ethernet/amazon/ena/ena_netdev.h | 1 + drivers/net/ethernet/amd/lance.c | 2 +- drivers/net/ethernet/amd/ni65.c | 5 +- drivers/net/ethernet/atheros/atlx/atl1.c | 4 +- drivers/net/ethernet/atheros/atlx/atl2.c | 4 +- drivers/net/ethernet/broadcom/cnic.c | 8 +- drivers/net/ethernet/cadence/macb_main.c | 4 +- .../net/ethernet/chelsio/cxgb3/cxgb3_main.c | 16 +- drivers/net/ethernet/micrel/ks8842.c | 7 +- drivers/net/ethernet/micrel/ks8851_mll.c | 3 +- drivers/net/ethernet/microchip/lan743x_main.c | 7 +- drivers/net/ethernet/realtek/atp.c | 3 +- drivers/net/fddi/skfp/skfddi.c | 4 +- drivers/net/hamradio/6pack.c | 4 +- drivers/net/hamradio/baycom_ser_fdx.c | 3 +- drivers/net/hamradio/baycom_ser_hdx.c | 3 +- drivers/net/hamradio/scc.c | 8 +- drivers/net/hamradio/yam.c | 6 +- drivers/net/hippi/rrunner.c | 2 +- drivers/net/ieee802154/at86rf230.c | 6 +- drivers/net/ieee802154/ca8210.c | 10 +- drivers/net/ieee802154/mcr20a.c | 3 +- drivers/net/ieee802154/mrf24j40.c | 3 +- drivers/net/ppp/ppp_async.c | 3 +- drivers/net/ppp/ppp_synctty.c | 3 +- drivers/net/slip/slip.c | 4 +- drivers/net/usb/cdc_ncm.c | 3 +- drivers/net/usb/hso.c | 6 +- drivers/net/wan/cosa.c | 2 +- drivers/net/wan/farsync.c | 6 +- drivers/net/wan/hostess_sv11.c | 3 +- drivers/net/wan/sbni.c | 2 +- drivers/net/wan/sdla.c | 4 +- drivers/net/wan/sealevel.c | 3 +- drivers/net/wireless/ath/ath9k/init.c | 5 +- drivers/net/wireless/ath/carl9170/usb.c | 4 +- .../net/wireless/broadcom/b43legacy/main.c | 8 +- drivers/net/wireless/broadcom/b43legacy/pio.c | 4 +- .../broadcom/brcm80211/brcmfmac/bcmsdh.c | 7 +- .../broadcom/brcm80211/brcmsmac/mac80211_if.c | 3 +- drivers/net/wireless/cisco/airo.c | 4 +- drivers/net/wireless/intel/ipw2x00/ipw2100.c | 9 +- drivers/net/wireless/intel/ipw2x00/ipw2200.c | 8 +- .../net/wireless/intel/iwlegacy/3945-mac.c | 9 +- .../net/wireless/intel/iwlegacy/4965-mac.c | 9 +- .../net/wireless/intersil/hostap/hostap_ap.c | 2 +- .../net/wireless/intersil/hostap/hostap_pci.c | 3 +- .../net/wireless/intersil/hostap/hostap_plx.c | 3 +- drivers/net/wireless/intersil/orinoco/main.c | 4 +- .../intersil/orinoco/orinoco_nortel.c | 4 +- .../wireless/intersil/orinoco/orinoco_pci.c | 4 +- .../wireless/intersil/orinoco/orinoco_plx.c | 4 +- .../wireless/intersil/orinoco/orinoco_tmd.c | 4 +- drivers/net/wireless/intersil/p54/p54pci.c | 2 +- drivers/net/wireless/intersil/p54/p54spi.c | 4 +- .../intersil/prism54/islpci_hotplug.c | 2 +- drivers/net/wireless/mac80211_hwsim.c | 6 +- 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drivers/pci/controller/pcie-xilinx.c | 2 +- drivers/pci/controller/vmd.c | 11 +- drivers/pci/hotplug/cpci_hotplug_core.c | 6 +- drivers/pci/hotplug/cpqphp_core.c | 3 +- drivers/pci/hotplug/shpchp_hpc.c | 5 +- drivers/pci/pcie/pme.c | 3 +- drivers/pci/switch/switchtec.c | 10 +- drivers/pcmcia/i82092.c | 2 +- drivers/pcmcia/i82365.c | 9 +- drivers/pcmcia/pcmcia_resource.c | 9 +- drivers/pcmcia/pd6729.c | 8 +- drivers/pcmcia/tcic.c | 7 +- drivers/pcmcia/yenta_socket.c | 7 +- drivers/pinctrl/intel/pinctrl-intel.c | 2 +- drivers/pinctrl/pinctrl-amd.c | 3 +- drivers/pinctrl/pinctrl-single.c | 3 +- drivers/platform/goldfish/goldfish_pipe.c | 6 +- drivers/platform/mellanox/mlxreg-hotplug.c | 5 +- drivers/platform/x86/fujitsu-tablet.c | 3 +- drivers/platform/x86/intel_int0002_vgpio.c | 2 +- drivers/platform/x86/intel_ips.c | 3 +- drivers/platform/x86/intel_pmc_ipc.c | 8 +- drivers/platform/x86/intel_punit_ipc.c | 4 +- drivers/platform/x86/intel_scu_ipc.c | 5 +- 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drivers/tty/vcc.c | 4 +- drivers/tty/vt/keyboard.c | 2 +- drivers/uio/uio.c | 3 +- drivers/usb/atm/usbatm.c | 6 +- drivers/usb/c67x00/c67x00-drv.c | 3 +- drivers/usb/chipidea/core.c | 5 +- drivers/usb/chipidea/otg_fsm.c | 3 +- drivers/usb/core/hcd.c | 8 +- drivers/usb/dwc2/gadget.c | 3 +- drivers/usb/dwc2/hcd_queue.c | 6 +- drivers/usb/dwc2/platform.c | 3 +- drivers/usb/gadget/function/f_midi.c | 3 +- drivers/usb/gadget/function/f_ncm.c | 3 +- drivers/usb/gadget/udc/amd5536udc_pci.c | 2 +- drivers/usb/gadget/udc/bdc/bdc_udc.c | 3 +- drivers/usb/gadget/udc/dummy_hcd.c | 4 +- drivers/usb/gadget/udc/fotg210-udc.c | 4 +- drivers/usb/gadget/udc/fusb300_udc.c | 6 +- drivers/usb/gadget/udc/goku_udc.c | 3 +- drivers/usb/gadget/udc/m66592-udc.c | 6 +- drivers/usb/gadget/udc/mv_u3d_core.c | 3 +- drivers/usb/gadget/udc/mv_udc_core.c | 3 +- drivers/usb/gadget/udc/net2272.c | 3 +- drivers/usb/gadget/udc/net2280.c | 3 +- drivers/usb/gadget/udc/pch_udc.c | 8 +- drivers/usb/gadget/udc/pxa27x_udc.c | 3 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drivers/vme/bridges/vme_ca91cx42.c | 5 +- drivers/vme/bridges/vme_tsi148.c | 7 +- drivers/w1/masters/ds1wm.c | 3 +- drivers/xen/events/events_base.c | 12 +- drivers/xen/platform-pci.c | 4 +- drivers/xen/pvcalls-front.c | 2 + drivers/xen/xen-pciback/pciback_ops.c | 6 +- include/asm-generic/io.h | 3 + include/linux/clearcpu.h | 36 +++ include/linux/filter.h | 21 +- include/linux/highmem.h | 2 + include/linux/hrtimer.h | 4 + include/linux/interrupt.h | 18 +- include/linux/skbuff.h | 2 + include/linux/timer.h | 14 +- include/linux/tty_flip.h | 4 + include/linux/usb/hcd.h | 5 +- kernel/bpf/core.c | 2 + kernel/bpf/cpumap.c | 3 + kernel/dma/swiotlb.c | 2 + kernel/irq/handle.c | 4 + kernel/irq/manage.c | 1 + kernel/sched/core.c | 9 + kernel/softirq.c | 25 +- kernel/time/alarmtimer.c | 2 +- kernel/time/hrtimer.c | 5 + kernel/time/timer.c | 8 + lib/random32.c | 2 +- lib/scatterlist.c | 2 + lib/string.c | 6 + mm/slab_common.c | 5 +- net/atm/pppoatm.c | 2 +- net/core/skbuff.c | 32 +++ net/mac80211/main.c | 14 +- net/rds/ib_cm.c | 8 +- net/wireless/lib80211.c | 2 +- net/xfrm/xfrm_state.c | 3 +- samples/v4l/v4l2-pci-skeleton.c | 5 +- security/keys/gc.c | 2 +- sound/core/hrtimer.c | 3 +- sound/core/pcm_lib.c | 3 + sound/core/rawmidi.c | 3 + sound/core/timer.c | 7 +- sound/drivers/mpu401/mpu401_uart.c | 8 +- sound/drivers/mtpav.c | 5 +- sound/drivers/pcsp/pcsp.c | 3 +- sound/drivers/serial-u16550.c | 6 +- sound/isa/ad1816a/ad1816a_lib.c | 2 +- sound/isa/es1688/es1688_lib.c | 4 +- sound/isa/es18xx.c | 3 +- sound/isa/gus/gus_main.c | 2 +- sound/isa/gus/gusmax.c | 2 +- sound/isa/gus/interwave.c | 3 +- sound/isa/msnd/msnd_pinnacle.c | 3 +- sound/isa/opl3sa2.c | 4 +- sound/isa/opti9xx/opti92x-ad1848.c | 3 +- sound/isa/sb/emu8000_pcm.c | 2 +- sound/isa/sb/sb8_midi.c | 3 +- sound/isa/sb/sb_common.c | 6 +- sound/isa/wavefront/wavefront.c | 3 +- sound/isa/wavefront/wavefront_midi.c | 4 +- sound/isa/wss/wss_lib.c | 3 +- sound/pci/ad1889.c | 3 +- sound/pci/ali5451/ali5451.c | 3 +- sound/pci/als300.c | 3 +- sound/pci/asihpi/asihpi.c | 4 +- sound/pci/asihpi/hpioctl.c | 3 +- sound/pci/atiixp.c | 3 +- sound/pci/atiixp_modem.c | 3 +- sound/pci/aw2/aw2-alsa.c | 3 +- sound/pci/azt3328.c | 3 +- sound/pci/bt87x.c | 4 +- sound/pci/ca0106/ca0106_main.c | 3 +- sound/pci/cmipci.c | 3 +- sound/pci/cs4281.c | 3 +- sound/pci/cs46xx/cs46xx_lib.c | 3 +- sound/pci/cs5535audio/cs5535audio.c | 3 +- sound/pci/ctxfi/cthw20k1.c | 3 +- sound/pci/ctxfi/cthw20k2.c | 3 +- sound/pci/echoaudio/midi.c | 2 +- sound/pci/emu10k1/emu10k1_main.c | 3 +- sound/pci/emu10k1/emu10k1x.c | 3 +- sound/pci/ens1370.c | 3 +- sound/pci/es1938.c | 6 +- sound/pci/es1968.c | 3 +- sound/pci/fm801.c | 3 +- sound/pci/hda/hda_intel.c | 4 +- sound/pci/ice1712/ice1712.c | 3 +- sound/pci/ice1712/ice1724.c | 3 +- sound/pci/intel8x0.c | 6 +- sound/pci/intel8x0m.c | 6 +- sound/pci/korg1212/korg1212.c | 4 +- sound/pci/lola/lola.c | 3 +- sound/pci/maestro3.c | 3 +- sound/pci/nm256/nm256.c | 3 +- sound/pci/oxygen/oxygen_lib.c | 4 +- sound/pci/riptide/riptide.c | 3 +- sound/pci/rme32.c | 3 +- sound/pci/rme96.c | 3 +- sound/pci/rme9652/hdsp.c | 8 +- sound/pci/rme9652/hdspm.c | 10 +- sound/pci/rme9652/rme9652.c | 3 +- sound/pci/sis7019.c | 7 +- sound/pci/sonicvibes.c | 3 +- sound/pci/trident/trident_main.c | 3 +- sound/pci/via82xx.c | 6 +- sound/pci/via82xx_modem.c | 3 +- sound/pci/ymfpci/ymfpci_main.c | 3 +- sound/soc/amd/acp-pcm-dma.c | 3 +- sound/soc/amd/raven/acp3x-pcm-dma.c | 3 +- sound/soc/codecs/rt5640.c | 4 +- sound/soc/codecs/rt5651.c | 4 +- sound/soc/codecs/rt5663.c | 4 +- sound/soc/dwc/dwc-i2s.c | 5 +- sound/soc/fsl/fsl_asrc.c | 3 +- sound/soc/fsl/fsl_esai.c | 3 +- sound/soc/fsl/fsl_sai.c | 3 +- sound/soc/fsl/fsl_spdif.c | 3 +- sound/soc/fsl/fsl_ssi.c | 3 +- sound/usb/midi.c | 6 +- sound/usb/misc/ua101.c | 4 +- sound/x86/intel_hdmi_audio.c | 5 +- 681 files changed, 2457 insertions(+), 1308 deletions(-) create mode 100644 Documentation/admin-guide/mds.rst create mode 100644 Documentation/clearcpu.txt create mode 100644 arch/x86/include/asm/clearbpf.h create mode 100644 arch/x86/include/asm/clearcpu.h create mode 100644 arch/x86/include/asm/trace/clearcpu.h create mode 100644 include/linux/clearcpu.h
Signature · 1 line
2.17.2