linux_dsm_epyc7002/Documentation/ABI/testing
Vineela Tummalapalli db4d30fbb7 x86/bugs: Add ITLB_MULTIHIT bug infrastructure
Some processors may incur a machine check error possibly resulting in an
unrecoverable CPU lockup when an instruction fetch encounters a TLB
multi-hit in the instruction TLB. This can occur when the page size is
changed along with either the physical address or cache type. The relevant
erratum can be found here:

   https://bugzilla.kernel.org/show_bug.cgi?id=205195

There are other processors affected for which the erratum does not fully
disclose the impact.

This issue affects both bare-metal x86 page tables and EPT.

It can be mitigated by either eliminating the use of large pages or by
using careful TLB invalidations when changing the page size in the page
tables.

Just like Spectre, Meltdown, L1TF and MDS, a new bit has been allocated in
MSR_IA32_ARCH_CAPABILITIES (PSCHANGE_MC_NO) and will be set on CPUs which
are mitigated against this issue.

Signed-off-by: Vineela Tummalapalli <vineela.tummalapalli@intel.com>
Co-developed-by: Pawan Gupta <pawan.kumar.gupta@linux.intel.com>
Signed-off-by: Pawan Gupta <pawan.kumar.gupta@linux.intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2019-11-04 12:22:01 +01:00
..
configfs-acpi
configfs-iio
configfs-rdma_cm
configfs-spear-pcie-gadget
configfs-stp-policy
configfs-stp-policy-p_sys-t
configfs-usb-gadget
configfs-usb-gadget-acm
configfs-usb-gadget-ecm
configfs-usb-gadget-eem
configfs-usb-gadget-ffs
configfs-usb-gadget-hid
configfs-usb-gadget-loopback
configfs-usb-gadget-mass-storage
configfs-usb-gadget-midi
configfs-usb-gadget-ncm
configfs-usb-gadget-obex
configfs-usb-gadget-phonet
configfs-usb-gadget-printer
configfs-usb-gadget-rndis
configfs-usb-gadget-serial
configfs-usb-gadget-sourcesink
configfs-usb-gadget-subset
configfs-usb-gadget-tcm
configfs-usb-gadget-uac1
configfs-usb-gadget-uac1_legacy
configfs-usb-gadget-uac2
configfs-usb-gadget-uvc
debugfs-cec-error-inj
debugfs-cros-ec
debugfs-driver-genwqe
debugfs-driver-habanalabs
debugfs-ec
debugfs-hisi-zip Documentation: Add debugfs doc for hisi_zip 2019-08-09 15:11:56 +10:00
debugfs-ideapad
debugfs-moxtet bus: moxtet: Add sysfs and debugfs documentation 2019-08-14 15:30:49 +02:00
debugfs-olpc
debugfs-pfo-nx-crypto
debugfs-pktcdvd
debugfs-wilco-ec
dell-smbios-wmi
dev-kmsg ABI: Update dev-kmsg documentation to match current kernel behaviour 2019-09-06 16:26:36 +02:00
devlink-resource-mlxsw
evm
gpio-cdev
ima_policy ima: Add modsig appraise_type option for module-style appended signatures 2019-08-05 18:40:21 -04:00
ppc-memtrace
procfs-diskstats docs: admin-guide: add a series of orphaned documents 2019-07-15 11:03:02 -03:00
procfs-smaps_rollup mm: smaps: split PSS into components 2019-07-12 11:05:47 -07:00
pstore
rtc-cdev
sysfs-ata
sysfs-block docs: admin-guide: add a series of orphaned documents 2019-07-15 11:03:02 -03:00
sysfs-block-aoe
sysfs-block-bcache
sysfs-block-device docs: admin-guide: add laptops documentation 2019-07-15 11:03:01 -03:00
sysfs-block-dm
sysfs-block-loop
sysfs-block-rssd
sysfs-block-zram
sysfs-bus-acpi
sysfs-bus-amba
sysfs-bus-bcma
sysfs-bus-coresight-devices-etb10
sysfs-bus-coresight-devices-etm3x
sysfs-bus-coresight-devices-etm4x
sysfs-bus-coresight-devices-funnel
sysfs-bus-coresight-devices-stm
sysfs-bus-coresight-devices-tmc
sysfs-bus-counter
sysfs-bus-counter-104-quad-8
sysfs-bus-counter-ftm-quaddec
sysfs-bus-css
sysfs-bus-event_source-devices-events
sysfs-bus-event_source-devices-format
sysfs-bus-event_source-devices-hv_24x7
sysfs-bus-event_source-devices-hv_gpci
sysfs-bus-fcoe
sysfs-bus-fsi
sysfs-bus-fsl-mc
sysfs-bus-hsi
sysfs-bus-i2c-devices-bq32k
sysfs-bus-i2c-devices-fsa9480
sysfs-bus-i2c-devices-hm6352
sysfs-bus-i2c-devices-lm3533
sysfs-bus-i2c-devices-pca954x
sysfs-bus-i3c
sysfs-bus-iio
sysfs-bus-iio-accel-bmc150
sysfs-bus-iio-adc-envelope-detector
sysfs-bus-iio-adc-hi8435
sysfs-bus-iio-adc-max9611
sysfs-bus-iio-adc-stm32
sysfs-bus-iio-chemical-vz89x
sysfs-bus-iio-counter-104-quad-8
sysfs-bus-iio-cros-ec
sysfs-bus-iio-dac-dpot-dac
sysfs-bus-iio-dfsdm-adc-stm32 Documentation: ABI: iio: Add missing newline at end of file 2019-07-27 20:11:16 +01:00
sysfs-bus-iio-distance-srf08
sysfs-bus-iio-frequency-ad9523
sysfs-bus-iio-frequency-adf4350
sysfs-bus-iio-frequency-adf4371
sysfs-bus-iio-gyro-bmg160
sysfs-bus-iio-health-afe440x
sysfs-bus-iio-humidity-hdc100x
sysfs-bus-iio-impedance-analyzer-ad5933
sysfs-bus-iio-ina2xx-adc
sysfs-bus-iio-isl29501
sysfs-bus-iio-light-isl29018
sysfs-bus-iio-light-lm3533-als
sysfs-bus-iio-light-si1133
sysfs-bus-iio-light-tsl2583
sysfs-bus-iio-lptimer-stm32
sysfs-bus-iio-magnetometer-hmc5843
sysfs-bus-iio-meas-spec
sysfs-bus-iio-mpu6050
sysfs-bus-iio-potentiometer-mcp4531
sysfs-bus-iio-proximity-as3935
sysfs-bus-iio-sps30
sysfs-bus-iio-temperature-max31856
sysfs-bus-iio-timer-stm32 IIO: stm32: Remove quadrature related functions from trigger driver 2019-07-27 20:11:18 +01:00
sysfs-bus-iio-trigger-sysfs
sysfs-bus-iio-vf610
sysfs-bus-intel_th-devices-gth
sysfs-bus-intel_th-devices-msc intel_th: msu: Introduce buffer interface 2019-07-25 13:03:18 +02:00
sysfs-bus-intel_th-devices-pti
sysfs-bus-intel_th-output-devices
sysfs-bus-mcb
sysfs-bus-media
sysfs-bus-mei
sysfs-bus-mmc
sysfs-bus-moxtet-devices bus: moxtet: Add sysfs and debugfs documentation 2019-08-14 15:30:49 +02:00
sysfs-bus-nfit
sysfs-bus-pci
sysfs-bus-pci-devices-aer_stats
sysfs-bus-pci-devices-cciss
sysfs-bus-pci-drivers-ehci_hcd
sysfs-bus-pci-drivers-janz-cmodio
sysfs-bus-pci-drivers-xhci_hcd
sysfs-bus-platform
sysfs-bus-rapidio
sysfs-bus-rbd
sysfs-bus-rpmsg
sysfs-bus-siox
sysfs-bus-thunderbolt
sysfs-bus-typec
sysfs-bus-umc
sysfs-bus-usb
sysfs-bus-usb-devices-usbsevseg
sysfs-bus-usb-lvstest
sysfs-bus-vfio-mdev
sysfs-bus-vmbus
sysfs-c2port
sysfs-cfq-target-latency
sysfs-class
sysfs-class-backlight backlight: Expose brightness curve type through sysfs 2019-09-02 15:55:03 +01:00
sysfs-class-backlight-adp5520
sysfs-class-backlight-adp8860
sysfs-class-backlight-driver-adp8870
sysfs-class-backlight-driver-lm3533
sysfs-class-backlight-lm3639
sysfs-class-bdi
sysfs-class-bsr
sysfs-class-chromeos
sysfs-class-chromeos-driver-cros-ec-lightbar
sysfs-class-chromeos-driver-cros-ec-vbc
sysfs-class-cxl
sysfs-class-devfreq
sysfs-class-devfreq-event
sysfs-class-extcon
sysfs-class-fpga-bridge
sysfs-class-fpga-manager
sysfs-class-fpga-region
sysfs-class-gnss
sysfs-class-iommu
sysfs-class-iommu-amd-iommu
sysfs-class-iommu-intel-iommu
sysfs-class-lcd
sysfs-class-led
sysfs-class-led-driver-lm3533
sysfs-class-led-driver-sc27xx
sysfs-class-led-flash
sysfs-class-led-trigger-netdev
sysfs-class-led-trigger-oneshot
sysfs-class-led-trigger-pattern
sysfs-class-led-trigger-usbport
sysfs-class-leds-gt683r
sysfs-class-mei
sysfs-class-mic docs: ABI: remove extension from sysfs-class-mic.txt 2019-07-25 14:38:38 +02:00
sysfs-class-mtd
sysfs-class-mux
sysfs-class-net
sysfs-class-net-cdc_ncm
sysfs-class-net-dsa
sysfs-class-net-grcan
sysfs-class-net-janz-ican3
sysfs-class-net-phydev
sysfs-class-net-qmi
sysfs-class-net-queues
sysfs-class-net-statistics
sysfs-class-ocxl
sysfs-class-pktcdvd
sysfs-class-power
sysfs-class-power-twl4030
sysfs-class-power-wilco
sysfs-class-powercap pci-v5.3-changes 2019-07-15 20:44:49 -07:00
sysfs-class-pwm
sysfs-class-rapidio
sysfs-class-rc
sysfs-class-rc-nuvoton
sysfs-class-regulator
sysfs-class-remoteproc remoteproc: Add a sysfs interface for name 2019-08-26 14:50:16 -07:00
sysfs-class-rtc
sysfs-class-rtc-rtc0-device-rtc_calibration
sysfs-class-scsi_host
sysfs-class-scsi_tape
sysfs-class-stm
sysfs-class-stm_source
sysfs-class-switchtec docs: driver-api: add a series of orphaned documents 2019-07-15 11:03:02 -03:00
sysfs-class-typec
sysfs-class-usb_role
sysfs-class-uwb_rc
sysfs-class-uwb_rc-wusbhc
sysfs-class-wakeup PM / wakeup: Show wakeup sources stats in sysfs 2019-08-21 00:20:40 +02:00
sysfs-class-watchdog watchdog: apseed: Add access_cs0 option for alt-boot 2019-09-17 08:59:13 +02:00
sysfs-class-zram
sysfs-dev
sysfs-devices
sysfs-devices-coredump
sysfs-devices-edac
sysfs-devices-firmware_node
sysfs-devices-lpss_ltr
sysfs-devices-memory
sysfs-devices-mmc
sysfs-devices-online
sysfs-devices-platform-_UDC_-gadget
sysfs-devices-platform-ACPI-TAD
sysfs-devices-platform-docg3
sysfs-devices-platform-dock
sysfs-devices-platform-ipmi
sysfs-devices-platform-sh_mobile_lcdc_fb
sysfs-devices-platform-stratix10-rsu firmware: rsu: document sysfs interface 2019-09-04 13:31:28 +02:00
sysfs-devices-platform-trackpoint
sysfs-devices-power PM: runtime: Documentation: add runtime_status ABI document 2019-09-06 14:11:13 +02:00
sysfs-devices-power_resources_D0
sysfs-devices-power_resources_D1
sysfs-devices-power_resources_D2
sysfs-devices-power_resources_D3hot
sysfs-devices-power_resources_wakeup
sysfs-devices-power_state
sysfs-devices-real_power_state
sysfs-devices-resource_in_use
sysfs-devices-soc base: soc: Add serial_number attribute to soc 2019-08-05 14:56:30 -07:00
sysfs-devices-software_node
sysfs-devices-sun
sysfs-devices-system-cpu x86/bugs: Add ITLB_MULTIHIT bug infrastructure 2019-11-04 12:22:01 +01:00
sysfs-devices-system-ibm-rtl
sysfs-devices-system-xen_cpu
sysfs-driver-altera-cvp
sysfs-driver-bd9571mwv-regulator
sysfs-driver-fsi-master-gpio
sysfs-driver-genwqe
sysfs-driver-habanalabs habanalabs: power management through sysfs is only for GOYA 2019-09-05 14:55:26 +03:00
sysfs-driver-hid
sysfs-driver-hid-corsair
sysfs-driver-hid-lenovo
sysfs-driver-hid-logitech-hidpp
sysfs-driver-hid-logitech-lg4ff
sysfs-driver-hid-multitouch
sysfs-driver-hid-ntrig
sysfs-driver-hid-picolcd
sysfs-driver-hid-prodikeys
sysfs-driver-hid-roccat-kone
sysfs-driver-hid-srws1
sysfs-driver-hid-wiimote
sysfs-driver-input-axp-pek
sysfs-driver-intel-rapid-start
sysfs-driver-pciback
sysfs-driver-ppi
sysfs-driver-samsung-laptop
sysfs-driver-st
sysfs-driver-tegra-fuse
sysfs-driver-toshiba_acpi
sysfs-driver-toshiba_haps
sysfs-driver-typec-displayport
sysfs-driver-ucsi-ccg
sysfs-driver-ufs
sysfs-driver-w1_ds28e17
sysfs-driver-wacom
sysfs-driver-xen-blkback
sysfs-driver-xen-blkfront
sysfs-firmware-acpi
sysfs-firmware-dmi-entries
sysfs-firmware-dmi-tables
sysfs-firmware-efi efi: Export Runtime Configuration Interface table to sysfs 2019-08-08 11:10:25 +03:00
sysfs-firmware-efi-esrt
sysfs-firmware-efi-runtime-map
sysfs-firmware-gsmi
sysfs-firmware-log
sysfs-firmware-memmap
sysfs-firmware-ofw
sysfs-firmware-opal-powercap
sysfs-firmware-opal-psr
sysfs-firmware-qemu_fw_cfg
sysfs-firmware-sfi
sysfs-firmware-sgi_uv
sysfs-firmware-turris-mox-rwtm firmware: turris-mox-rwtm: Add sysfs documentation 2019-09-04 17:32:28 +02:00
sysfs-fs-ext4
sysfs-fs-f2fs f2fs: include charset encoding information in the superblock 2019-08-23 07:57:13 -07:00
sysfs-fs-nilfs2
sysfs-fs-xfs
sysfs-hypervisor-xen
sysfs-ibft
sysfs-kernel-boot_params
sysfs-kernel-btf btf: rename /sys/kernel/btf/kernel into /sys/kernel/btf/vmlinux 2019-08-13 23:19:42 +02:00
sysfs-kernel-fscaps
sysfs-kernel-iommu_groups
sysfs-kernel-irq
sysfs-kernel-livepatch
sysfs-kernel-mm
sysfs-kernel-mm-hugepages
sysfs-kernel-mm-ksm
sysfs-kernel-mm-swap
sysfs-kernel-slab mm, slab: extend slab/shrink to shrink all memcg caches 2019-09-24 15:54:07 -07:00
sysfs-kernel-uids
sysfs-kernel-vmcoreinfo
sysfs-memory-page-offline
sysfs-module
sysfs-ocfs2
sysfs-platform-asus-laptop docs: admin-guide: add laptops documentation 2019-07-15 11:03:01 -03:00
sysfs-platform-asus-wmi platform/x86: asus: Rename "fan mode" to "fan boost mode" 2019-07-17 19:07:58 +03:00
sysfs-platform-at91
sysfs-platform-brcmstb-gisb-arb
sysfs-platform-chipidea-usb2
sysfs-platform-chipidea-usb-otg
sysfs-platform-dell-laptop
sysfs-platform-dell-smbios
sysfs-platform-dfl-fme fpga: dfl: fme: add global error reporting support 2019-09-03 19:35:41 -07:00
sysfs-platform-dfl-port fpga: dfl: afu: add error reporting support. 2019-09-03 19:35:41 -07:00
sysfs-platform-dptf
sysfs-platform-eeepc-laptop
sysfs-platform-hidma
sysfs-platform-hidma-mgmt
sysfs-platform-i2c-demux-pinctrl
sysfs-platform-ideapad-laptop
sysfs-platform-intel-wmi-thunderbolt
sysfs-platform-kim
sysfs-platform-lg-laptop
sysfs-platform-msi-laptop
sysfs-platform-phy-rcar-gen3-usb2
sysfs-platform-renesas_usb3
sysfs-platform-sst-atom
sysfs-platform-tahvo-usb
sysfs-platform-ts5500
sysfs-platform-twl4030-usb
sysfs-platform-usbip-vudc
sysfs-platform-wilco-ec
sysfs-power PM/sleep: Expose suspend stats in sysfs 2019-08-05 12:03:18 +02:00
sysfs-pps
sysfs-profiling
sysfs-ptp
sysfs-tty
sysfs-uevent
sysfs-wusb_cbaf
usb-uevent