Vineela Tummalapalli
12ceedb760
x86/bugs: Add ITLB_MULTIHIT bug infrastructure ...
commit db4d30fbb71b47e4ecb11c4efa5d8aad4b03dfae upstream.
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>
[bwh: Backported to 4.9:
- No support for X86_VENDOR_HYGON, ATOM_AIRMONT_NP
- Adjust context, indentation]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-11-16 10:29:54 +01:00
ACPI / PCI: fix acpi_pci_irq_enable() memory leak
2019-10-05 12:30:26 +02:00
ANDROID: binder: synchronize_rcu() when using POLLFREE.
2019-10-07 18:53:19 +02:00
libata: add SG safety checks in SFF pio transfers
2019-09-06 10:19:35 +02:00
Kconfig: Fix the reference to the IDT77105 Phy driver in the description of ATM_NICSTAR_USE_IDT77105
2019-09-21 07:14:13 +02:00
x86/bugs: Add ITLB_MULTIHIT bug infrastructure
2019-11-16 10:29:54 +01:00
loop: Add LOOP_SET_DIRECT_IO to compat ioctl
2019-10-29 09:15:09 +01:00
Bluetooth: hci_ldisc: Postpone HCI_UART_PROTO_READY bit set in hci_uart_set_proto()
2019-11-16 10:29:34 +01:00
bus: arm-cci: remove unnecessary unreachable()
2018-12-05 19:42:41 +01:00
cdrom: Fix race condition in cdrom_sysctl_register
2019-04-05 22:29:12 +02:00
ipmi_si: Only schedule continuously in the thread in maintenance mode
2019-10-07 18:53:10 +02:00
clk: at91: select parent if main oscillator or bypass is enabled
2019-10-07 18:53:14 +02:00
clocksource/drivers/exynos_mct: Increase priority over ARM arch timer
2019-08-04 09:33:22 +02:00
cpufreq: Avoid cpufreq_suspend() deadlock on system shutdown
2019-10-29 09:15:25 +01:00
cpuidle: big.LITTLE: fix refcount leak
2019-02-12 19:44:55 +01:00
crypto: caam - fix concurrency issue in givencrypt descriptor
2019-10-17 13:42:19 -07:00
PM / devfreq: passive: fix compiler warning
2019-10-05 12:30:29 +02:00
dmaengine: xilinx_dma: Fix control reg update in vdma_channel_set_config
2019-11-12 19:15:54 +01:00
EDAC/altera: Use the proper type for the IRQ status bits
2019-10-05 12:30:20 +02:00
extcon: arizona: Disable mic detect if running when driver is removed
2019-05-31 06:48:26 -07:00
efi/cper: Fix endianness of PCIe class code
2019-11-06 12:18:09 +01:00
gpio: max77620: Use correct unit for debounce times
2019-11-06 12:18:07 +01:00
drm/i915/cmdparser: Fix jump whitelist clearing
2019-11-12 19:16:24 +01:00
HID: intel-ish-hid: fix wrong error handling in ishtp_cl_alloc_tx_ring()
2019-11-12 19:15:55 +01:00
Drivers: hv: vmbus: Return -EINVAL for the sys files for unopened channels
2018-12-29 13:40:15 +01:00
hwmon: (acpi_power_meter) Change log level for 'unsafe software power cap'
2019-10-05 12:30:26 +02:00
coresight: etm4x: Use explicit barriers on enable/disable
2019-10-17 13:42:20 -07:00
i2c: riic: Clear NACK in tend isr
2019-10-05 12:30:36 +02:00
ide: pmac: add of_node_put()
2018-12-21 14:11:37 +01:00
x86/cpu: Sanitize FAM6_ATOM naming
2019-05-14 19:19:34 +02:00
iio: imu: adis16480: make sure provided frequency is positive
2019-11-12 19:15:45 +01:00
RDMA/iw_cxgb4: Avoid freeing skb twice in arp failure case
2019-11-12 19:16:03 +01:00
Input: da9063 - fix capability and drop KEY_SLEEP
2019-10-29 09:15:20 +01:00
iommu/amd: Silence warnings under memory pressure
2019-10-05 12:30:25 +02:00
irqchip/gic-v3-its: Fix LPI release for Multi-MSI devices
2019-10-05 12:30:10 +02:00
mISDN: enforce CAP_NET_RAW for raw sockets
2019-10-05 12:30:14 +02:00
leds: leds-lp5562 allow firmware files up to the maximum length
2019-10-05 12:30:17 +02:00
macintosh/rack-meter: Convert cputime64_t use to u64
2018-10-20 09:51:32 +02:00
mailbox: handle failed named mailbox channel request
2019-08-04 09:33:41 +02:00
dm: Use kzalloc for all structs with embedded biosets/mempools
2019-11-06 12:18:01 +01:00
media: stkwebcam: fix runtime PM after driver unbind
2019-10-17 13:42:46 -07:00
memory: tegra: Fix integer overflow on tick value calculation
2019-05-25 18:26:49 +02:00
memstick: jmb38x_ms: Fix an error handling path in 'jmb38x_ms_probe()'
2019-10-29 09:15:25 +01:00
mfd: intel-lpss: Remove D3cold delay
2019-10-07 18:53:16 +02:00
VMCI: Release resource if the work is already queued
2019-09-06 10:19:52 +02:00
mmc: sdhci: Fix incorrect switch to HS mode
2019-10-05 12:30:27 +02:00
mtd: cfi_cmdset_0002: Use chip_good() to retry in do_write_oneword()
2019-10-05 12:30:07 +02:00
can: flexcan: disable completely the ECC mechanism
2019-11-12 19:16:10 +01:00
NFC: st21nfca: fix double free
2019-11-12 19:15:40 +01:00
libnvdimm/pfn: fix fsdax-mode namespace info-block zero-fields
2019-08-04 09:33:29 +02:00
nvmet: fix data units read and written counters in SMART log
2019-10-05 12:30:25 +02:00
nvmem: Use the same permissions for eeprom as for nvmem
2019-09-21 07:14:08 +02:00
of: unittest: fix memory leak in unittest_data_add
2019-11-10 11:23:19 +01:00
parisc: Disable HP HSC-PCI Cards to prevent kernel crash
2019-10-05 12:30:31 +02:00
parport: Fix mem leak in parport_register_dev_model
2019-07-10 09:55:29 +02:00
PCI: tegra: Enable Relaxed Ordering only for Tegra20 & Tegra30
2019-11-12 19:15:54 +01:00
pcmcia: Implement CLKRUN protocol disabling for Ricoh bridges
2018-11-13 11:16:46 -08:00
drivers/perf: arm_pmu: Fix failure path in PM notifier
2019-08-06 18:29:41 +02:00
phy: renesas: rcar-gen2: Fix memory leak at error paths
2019-08-04 09:33:37 +02:00
pinctrl: ns2: Fix off by one bugs in ns2_pinmux_enable()
2019-11-10 11:23:12 +01:00
platform/x86: intel_pmc_ipc: adding error handling
2019-06-22 08:17:16 +02:00
power: supply: sysfs: ratelimit property read error message
2019-10-05 12:30:09 +02:00
x86/cpu: Sanitize FAM6_ATOM naming
2019-05-14 19:19:34 +02:00
drivers/pps/pps.c: clear offset flags in PPS_SETPARAMS ioctl
2019-08-04 09:33:45 +02:00
ptp: check gettime64 return code in PTP_SYS_OFFSET ioctl
2019-02-12 19:44:52 +01:00
pwm: Fix deadlock warning when removing PWM device
2019-06-22 08:17:17 +02:00
drivers/rapidio/devices/rio_mport_cdev.c: NUL terminate some strings
2019-08-06 18:29:38 +02:00
regulator: pfuze100-regulator: Variable "val" in pfuze100_regulator_probe() could be uninitialized
2019-11-10 11:23:09 +01:00
reset: make device_reset_optional() really optional
2018-12-08 13:05:08 +01:00
rpmsg: smd: fix memory leak on channel create
2018-11-13 11:17:03 -08:00
rtc: pcf8523: set xtal load capacitance from DT
2019-11-06 12:18:04 +01:00
scsi: zfcp: fix reaction on bit error threshold notification
2019-10-29 09:15:23 +01:00
drivers/sbus/char: add of_node_put()
2018-12-21 14:11:36 +01:00
scsi: qla2xxx: stop timer in shutdown path
2019-11-12 19:16:03 +01:00
soc: mediatek: pwrap: Zero initialize rdata in pwrap_init_cipher
2019-06-22 08:17:15 +02:00
spi: bcm2835aux: fix corruptions for longer spi transfers
2019-09-10 10:31:03 +01:00
ssb: Fix possible NULL pointer dereference in ssb_host_pcmcia_exit
2019-05-31 06:48:12 -07:00
staging: rtl8188eu: fix null dereference when kzalloc fails
2019-11-06 12:18:06 +01:00
scsi: target: core: Do not overwrite CDB byte 1
2019-11-10 11:23:18 +01:00
TC: Set DMA masks for devices
2018-11-13 11:17:02 -08:00
thermal: Fix use-after-free when unregistering thermal zone device
2019-10-17 13:42:12 -07:00
thunderbolt: Use 32-bit writes when writing ring producer/consumer
2019-11-06 12:18:14 +01:00
serial: mctrl_gpio: Check for NULL pointer
2019-11-06 12:18:08 +01:00
uio: Fix an Oops on load
2018-11-27 16:09:41 +01:00
usb: gadget: core: unmap request from DMA only if previously mapped
2019-11-16 10:29:37 +01:00
uwb: hwa-rc: fix memory leak at probe
2018-10-03 17:01:42 -07:00
vfio_pci: Restore original state on release
2019-10-07 18:53:12 +02:00
vhost: make sure log_num < in_num
2019-09-16 08:19:34 +02:00
video: ssd1307fb: Start page range at page_offset
2019-10-07 18:53:09 +02:00
drivers/virt/fsl_hypervisor.c: prevent integer overflow in ioctl
2019-05-16 19:43:47 +02:00
virtio: Honour 'may_reduce_num' in vring_create_virtqueue
2019-04-17 08:36:47 +02:00
w1: fix the resume command API
2019-05-31 06:48:15 -07:00
watchdog: imx2_wdt: fix min() calculation in imx2_wdt_set_timeout
2019-10-17 13:42:07 -07:00
xen/pci: reserve MCFG areas earlier
2019-10-17 13:42:10 -07:00
12ceedb760