Mark Gross b65105dc42 x86/speculation: Add Special Register Buffer Data Sampling (SRBDS) mitigation ... commit 7e5b3c267d upstream SRBDS is an MDS-like speculative side channel that can leak bits from the random number generator (RNG) across cores and threads. New microcode serializes the processor access during the execution of RDRAND and RDSEED. This ensures that the shared buffer is overwritten before it is released for reuse. While it is present on all affected CPU models, the microcode mitigation is not needed on models that enumerate ARCH_CAPABILITIES[MDS_NO] in the cases where TSX is not supported or has been disabled with TSX_CTRL. The mitigation is activated by default on affected processors and it increases latency for RDRAND and RDSEED instructions. Among other effects this will reduce throughput from /dev/urandom. * Enable administrator to configure the mitigation off when desired using either mitigations=off or srbds=off. * Export vulnerability status via sysfs * Rename file-scoped macros to apply for non-whitelist table initializations. [ bp: Massage, - s/VULNBL_INTEL_STEPPING/VULNBL_INTEL_STEPPINGS/g, - do not read arch cap MSR a second time in tsx_fused_off() - just pass it in, - flip check in cpu_set_bug_bits() to save an indentation level, - reflow comments. jpoimboe: s/Mitigated/Mitigation/ in user-visible strings tglx: Dropped the fused off magic for now ] Signed-off-by: Mark Gross <mgross@linux.intel.com> Signed-off-by: Borislav Petkov <bp@suse.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Tony Luck <tony.luck@intel.com> Reviewed-by: Pawan Gupta <pawan.kumar.gupta@linux.intel.com> Reviewed-by: Josh Poimboeuf <jpoimboe@redhat.com> Tested-by: Neelima Krishnan <neelima.krishnan@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2020-06-10 21:35:01 +02:00
..
accessibility
acpi	nfit: Add Hyper-V NVDIMM DSM command set to white list	2020-05-27 17:37:39 +02:00
amba
android	binder: take read mode of mmap_sem in binder_alloc_free_page()	2020-05-02 17:25:48 +02:00
ata	libata: Return correct status in sata_pmp_eh_recover_pm() when ATA_DFLAG_DETACH is set	2020-04-17 10:48:52 +02:00
atm	fore200e: Fix incorrect checks of NULL pointer dereference	2020-02-24 08:34:42 +01:00
auxdisplay
base	x86/speculation: Add Special Register Buffer Data Sampling (SRBDS) mitigation	2020-06-10 21:35:01 +02:00
bcma	bcma: fix incorrect update of BCMA_CORE_PCI_MDIO_DATA	2020-01-27 14:51:09 +01:00
block	null_blk: return error for invalid zone size	2020-06-07 13:17:56 +02:00
bluetooth	Bluetooth: btusb: fix PM leak in error case of setup	2020-01-09 10:19:04 +01:00
bus	bus: sunxi-rsb: Return correct data when mixing 16-bit and 8-bit reads	2020-04-17 10:48:37 +02:00
cdrom	cdrom: respect device capabilities during opening action	2020-01-04 19:13:12 +01:00
char	tpm: ibmvtpm: retry on H_CLOSED in tpm_ibmvtpm_send()	2020-04-29 16:31:29 +02:00
clk	clk: Unlink clock if failed to prepare or enable	2020-05-20 08:18:52 +02:00
clocksource	clocksource/drivers/bcm2835_timer: Fix memory leak of timer	2020-02-24 08:34:37 +01:00
connector
cpufreq	cpufreq: intel_pstate: Only mention the BIOS disabling turbo mode once	2020-05-20 08:18:40 +02:00
cpuidle	cpuidle: Do not unset the driver if it is there already	2019-12-17 20:35:00 +01:00
crypto	crypto: chelsio/chtls: properly set tp->lsndtime	2020-06-03 08:19:48 +02:00
dax
dca
devfreq	Revert "PM / devfreq: Modify the device name as devfreq(X) for sysfs"	2020-03-05 16:42:18 +01:00
dio
dma	dmaengine: owl: Use correct lock in owl_dma_get_pchan()	2020-05-27 17:37:38 +02:00
dma-buf	dma-buf: Fix memory leak in sync_file_merge()	2019-12-21 10:57:38 +01:00
edac	EDAC/amd64: Set grain per DIMM	2020-03-11 14:14:45 +01:00
eisa
extcon	extcon: axp288: Add wakeup support	2020-04-13 10:45:03 +02:00
firewire	net: add annotations on hh->hh_len lockless accesses	2020-01-09 10:19:09 +01:00
firmware	efi/x86: Ignore the memory attributes table on i386	2020-04-17 10:48:41 +02:00
fmc
fpga
fsi	fsi: sbefifo: Don't fail operations when in SBE IPL state	2020-01-27 14:51:00 +01:00
gnss
gpio	gpio: exar: Fix bad handling for ida_simple_get error path	2020-06-03 08:19:35 +02:00
gpu	drm/edid: Add Oculus Rift S to non-desktop list	2020-06-07 13:17:56 +02:00
hid	HID: i2c-hid: add Schneider SCL142ALM to descriptor override	2020-06-07 13:17:53 +02:00
hsi
hv	x86/Hyper-V: Report crash data in die() when panic_on_oops is set	2020-04-23 10:30:17 +02:00
hwmon	hwmon: (da9052) Synchronize access with mfd	2020-05-20 08:18:44 +02:00
hwspinlock
hwtracing	intel_th: pci: Add Elkhart Lake CPU support	2020-03-25 08:06:11 +01:00
i2c	i2c: altera: Fix race between xfer_msg and isr thread	2020-06-07 13:17:56 +02:00
ide	ide: serverworks: potential overflow in svwks_set_pio_mode()	2020-02-24 08:34:49 +01:00
idle
iio	iio: vcnl4000: Fix i2c swapped word reading.	2020-06-10 21:35:00 +02:00
infiniband	RDMA/core: Fix double destruction of uobject	2020-06-03 08:19:43 +02:00
input	Input: synaptics-rmi4 - fix error return code in rmi_driver_probe()	2020-06-03 08:19:33 +02:00
iommu	iommu: Fix reference count leak in iommu_group_alloc.	2020-06-03 08:19:41 +02:00
ipack	ipack: tpci200: fix error return code in tpci200_register()	2020-05-27 17:37:43 +02:00
irqchip	irqchip/mbigen: Free msi_desc on device teardown	2020-04-23 10:30:13 +02:00
isdn	staging: gigaset: add endpoint-type sanity check	2019-12-17 20:34:33 +01:00
leds	leds: pca963x: Fix open-drain initialization	2020-02-24 08:34:35 +01:00
lightnvm	lightnvm: pblk: fix lock order in pblk_rb_tear_down_check	2020-01-27 14:50:45 +01:00
macintosh	macintosh: windfarm: fix MODINFO regression	2020-03-18 07:14:21 +01:00
mailbox	mailbox: qcom-apcs: fix max_register value	2020-01-27 14:51:14 +01:00
mcb
md	dm multipath: use updated MPATHF_QUEUE_IO on mapping for bio-based mpath	2020-05-06 08:13:29 +02:00
media	media: fdp1: Fix R-Car M3-N naming in debug message	2020-05-27 17:37:40 +02:00
memory	memory: tegra: Don't invoke Tegra30+ specific memory timing setup on Tegra20	2020-01-27 14:50:13 +01:00
memstick
message	scsi: mptfusion: Fix double fetch bug in ioctl	2020-01-23 08:21:28 +01:00
mfd	mfd: intel-lpss: Use devm_ioremap_uc for MMIO	2020-05-10 10:30:11 +02:00
misc	mei: release me_cl object reference	2020-05-27 17:37:43 +02:00
mmc	mmc: core: Fix recursive locking issue in CQE recovery path	2020-06-03 08:19:42 +02:00
mtd	ubi: Fix seq_file usage in detailed_erase_block_info debugfs file	2020-05-27 17:37:30 +02:00
mux
net	net: usb: qmi_wwan: add Telit LE910C1-EUX composition	2020-06-10 21:34:59 +02:00
nfc	NFC: st21nfca: add missed kfree_skb() in an error path	2020-06-10 21:34:59 +02:00
ntb	ntb_hw_switchtec: potential shift wrapping bug in switchtec_ntb_init_sndev()	2020-01-27 14:50:55 +01:00
nubus
nvdimm	libnvdimm: Fix endian conversion issues	2020-06-07 13:17:53 +02:00
nvme	nvme: fix deadlock caused by ANA update wrong locking	2020-04-29 16:31:12 +02:00
nvmem	nvmem: qfprom: remove incorrect write support	2020-06-10 21:35:00 +02:00
of	of: overlay: kmemleak in dup_and_fixup_symbol_prop()	2020-04-23 10:30:14 +02:00
opp	OPP: Fix missing debugfs supply directory for OPPs	2020-01-27 14:50:04 +01:00
oprofile
parisc
parport	parport: load lowlevel driver if ports not found	2019-12-31 16:36:01 +01:00
pci	PCI: Move Apex Edge TPU class quirk to fix BAR assignment	2020-05-02 17:25:52 +02:00
pcmcia
perf	drivers/perf: arm_pmu_acpi: Fix incorrect checking of gicc pointer	2020-03-25 08:06:07 +01:00
phy	phy: mapphone-mdm6600: Fix write timeouts with shorter GPIO toggle interval	2020-03-11 14:15:10 +01:00
pinctrl	pinctrl: cherryview: Add missing spinlock usage in chv_gpio_irq_handler	2020-05-20 08:18:41 +02:00
platform	platform/x86: asus-nb-wmi: Do not load on Asus T100TA and T200TA	2020-05-27 17:37:35 +02:00
pnp
power	power: supply: axp288_fuel_gauge: Broaden vendor check for Intel Compute Sticks.	2020-04-23 10:30:22 +02:00
powercap
pps
ps3
ptp	ptp: free ptp device pin descriptors properly	2020-01-23 08:21:35 +01:00
pwm	pwm: bcm2835: Dynamically allocate base	2020-04-29 16:31:14 +02:00
rapidio	rapidio: fix an error in get_user_pages_fast() error handling	2020-05-27 17:37:43 +02:00
ras
regulator	regulator: rk808: Lower log level on optional GPIOs being not available	2020-02-24 08:34:40 +01:00
remoteproc	remoteproc: Fix wrong rvring index computation	2020-05-02 17:25:47 +02:00
reset	reset: uniphier: Add SCSSI reset control for each channel	2020-02-24 08:34:44 +01:00
rpmsg	rpmsg: glink: Remove chunk size word align warning	2020-04-13 10:45:16 +02:00
rtc	rtc: 88pm860x: fix possible race condition	2020-04-23 10:30:18 +02:00
s390	s390/cio: avoid duplicated 'ADD' uevents	2020-04-29 16:31:13 +02:00
sbus
scsi	scsi: hisi_sas: Check sas_port before using it	2020-06-07 13:17:55 +02:00
sfi
sh
siox
slimbus
sn
soc	soc: imx: gpc: fix power up sequencing	2020-04-23 10:30:17 +02:00
soundwire	soundwire: intel: fix PDI/stream mapping for Bulk	2019-12-31 16:35:55 +01:00
spi	spi: dw: use "smp_mb()" to avoid sending spi data error	2020-06-07 13:17:55 +02:00
spmi
ssb
staging	staging: rtl8712: Fix IEEE80211_ADDBA_PARAM_BUF_SIZE_MASK	2020-06-10 21:35:00 +02:00
target	scsi: target/iblock: fix WRITE SAME zeroing	2020-05-06 08:13:31 +02:00
tc
tee	tee: optee: Fix compilation issue with nommu	2020-02-05 14:43:50 +00:00
thermal	thermal: brcmstb_thermal: Do not use DT coefficients	2020-03-05 16:42:22 +01:00
thunderbolt	thunderbolt: Drop duplicated get_switch_at_route()	2020-05-27 17:37:40 +02:00
tty	tty: hvc_console, fix crashes on parallel open/close	2020-06-10 21:35:00 +02:00
uio	uio: fix a sleep-in-atomic-context bug in uio_dmem_genirq_irqcontrol()	2020-02-24 08:34:37 +01:00
usb	CDC-ACM: heed quirk also in error handling	2020-06-10 21:35:00 +02:00
uwb
vfio	vfio/type1: Fix VA->PA translation for PFNMAP VMAs in vaddr_get_pfn()	2020-05-06 08:13:31 +02:00
vhost	vhost/vsock: fix packet delivery order to monitoring devices	2020-05-27 17:37:32 +02:00
video	fbdev: potential information leak in do_fb_ioctl()	2020-04-23 10:30:22 +02:00
virt
virtio	virtio_balloon: prevent pfn array overflow	2020-02-24 08:34:54 +01:00
visorbus	visorbus: fix uninitialized variable access	2020-02-24 08:34:47 +01:00
vlynq
vme	vme: bridges: reduce stack usage	2020-02-24 08:34:47 +01:00
w1
watchdog	watchdog: reset last_hw_keepalive time at start	2020-04-29 16:31:09 +02:00
xen	xen/xenbus: ensure xenbus_map_ring_valloc() returns proper grant status	2020-05-02 17:25:58 +02:00
zorro
Kconfig
Makefile