possible to determine what the correct size should be.
This option provides an override for these situations.
+ carrier_timeout=
+ [NET] Specifies amount of time (in seconds) that
+ the kernel should wait for a network carrier. By default
+ it waits 120 seconds.
+
ca_keys= [KEYS] This parameter identifies a specific key(s) on
the system trusted keyring to be used for certificate
trust validation.
The filter can be disabled or changed to another
driver later using sysfs.
+ driver_async_probe= [KNL]
+ List of driver names to be probed asynchronously.
+ Format: <driver_name1>,<driver_name2>...
+
drm.edid_firmware=[<connector>:]<file>[,[<connector>:]<file>]
Broken monitors, graphic adapters, KVMs and EDIDless
panels may send no or incorrect EDID data sets.
specified address. The serial port must already be
setup and configured. Options are not yet supported.
+ efifb,[options]
+ Start an early, unaccelerated console on the EFI
+ memory mapped framebuffer (if available). On cache
+ coherent non-x86 systems that use system memory for
+ the framebuffer, pass the 'ram' option so that it is
+ mapped with the correct attributes.
+
earlyprintk= [X86,SH,ARM,M68k,S390]
earlyprintk=vga
- earlyprintk=efi
earlyprintk=sclp
earlyprintk=xen
earlyprintk=serial[,ttySn[,baudrate]]
arch/x86/kernel/cpu/cpufreq/elanfreq.c.
elevator= [IOSCHED]
- Format: {"cfq" | "deadline" | "noop"}
- See Documentation/block/cfq-iosched.txt and
- Documentation/block/deadline-iosched.txt for details.
+ Format: { "mq-deadline" | "kyber" | "bfq" }
+ See Documentation/block/deadline-iosched.txt,
+ Documentation/block/kyber-iosched.txt and
+ Documentation/block/bfq-iosched.txt for details.
elfcorehdr=[size[KMG]@]offset[KMG] [IA64,PPC,SH,X86,S390]
Specifies physical address of start of kernel core
By default, super page will be supported if Intel IOMMU
has the capability. With this option, super page will
not be supported.
- sm_off [Default Off]
- By default, scalable mode will be supported if the
+ sm_on [Default Off]
+ By default, scalable mode will be disabled even if the
hardware advertises that it has support for the scalable
mode translation. With this option set, scalable mode
- will not be used even on hardware which claims to support
- it.
+ will be used on hardware which claims to support it.
tboot_noforce [Default Off]
Do not force the Intel IOMMU enabled under tboot.
By default, tboot will force Intel IOMMU on, which
to let secondary kernels in charge of setting up
LPIs.
+ irqchip.gicv3_pseudo_nmi= [ARM64]
+ Enables support for pseudo-NMIs in the kernel. This
+ requires the kernel to be built with
+ CONFIG_ARM64_PSEUDO_NMI.
+
irqfixup [HW]
When an interrupt is not handled search all handlers
for it. Intended to get systems with badly broken
Built with CONFIG_DEBUG_KMEMLEAK_DEFAULT_OFF=y,
the default is off.
+ kpti= [ARM64] Control page table isolation of user
+ and kernel address spaces.
+ Default: enabled on cores which need mitigation.
+ 0: force disabled
+ 1: force enabled
+
kvm.ignore_msrs=[KVM] Ignore guest accesses to unhandled MSRs.
Default is 0 (don't ignore, but inject #GP)
lsm.debug [SECURITY] Enable LSM initialization debugging output.
+ lsm=lsm1,...,lsmN
+ [SECURITY] Choose order of LSM initialization. This
+ overrides CONFIG_LSM, and the "security=" parameter.
+
machvec= [IA-64] Force the use of a particular machine-vector
(machvec) in a generic kernel.
Example: machvec=hpzx1_swiotlb
latencies, which will choose a value aligned
with the appropriate hardware boundaries.
- rcutree.jiffies_till_sched_qs= [KNL]
- Set required age in jiffies for a
- given grace period before RCU starts
- soliciting quiescent-state help from
- rcu_note_context_switch(). If not specified, the
- kernel will calculate a value based on the most
- recent settings of rcutree.jiffies_till_first_fqs
- and rcutree.jiffies_till_next_fqs.
- This calculated value may be viewed in
- rcutree.jiffies_to_sched_qs. Any attempt to
- set rcutree.jiffies_to_sched_qs will be
- cheerfully overwritten.
-
rcutree.jiffies_till_first_fqs= [KNL]
Set delay from grace-period initialization to
first attempt to force quiescent states.
quiescent states. Units are jiffies, minimum
value is one, and maximum value is HZ.
+ rcutree.jiffies_till_sched_qs= [KNL]
+ Set required age in jiffies for a
+ given grace period before RCU starts
+ soliciting quiescent-state help from
+ rcu_note_context_switch() and cond_resched().
+ If not specified, the kernel will calculate
+ a value based on the most recent settings
+ of rcutree.jiffies_till_first_fqs
+ and rcutree.jiffies_till_next_fqs.
+ This calculated value may be viewed in
+ rcutree.jiffies_to_sched_qs. Any attempt to set
+ rcutree.jiffies_to_sched_qs will be cheerfully
+ overwritten.
+
rcutree.kthread_prio= [KNL,BOOT]
Set the SCHED_FIFO priority of the RCU per-CPU
kthreads (rcuc/N). This value is also used for
This wake_up() will be accompanied by a
WARN_ONCE() splat and an ftrace_dump().
+ rcutree.sysrq_rcu= [KNL]
+ Commandeer a sysrq key to dump out Tree RCU's
+ rcu_node tree with an eye towards determining
+ why a new grace period has not yet started.
+
rcuperf.gp_async= [KNL]
Measure performance of asynchronous
grace-period primitives such as call_rcu().
Note: increases power consumption, thus should only be
enabled if running jitter sensitive (HPC/RT) workloads.
- security= [SECURITY] Choose a security module to enable at boot.
- If this boot parameter is not specified, only the first
- security module asking for security registration will be
- loaded. An invalid security module name will be treated
- as if no module has been chosen.
+ security= [SECURITY] Choose a legacy "major" security module to
+ enable at boot. This has been deprecated by the
+ "lsm=" parameter.
selinux= [SELINUX] Disable or enable SELinux at boot time.
Format: { "0" | "1" }
usbcore.authorized_default=
[USB] Default USB device authorization:
(default -1 = authorized except for wireless USB,
- 0 = not authorized, 1 = authorized)
+ 0 = not authorized, 1 = authorized, 2 = authorized
+ if device connected to internal port)
usbcore.autosuspend=
[USB] The autosuspend time delay (in seconds) used
| Implementor | Component | Erratum ID | Kconfig |
+----------------+-----------------+-----------------+-----------------------------+
+| Allwinner | A64/R18 | UNKNOWN1 | SUN50I_ERRATUM_UNKNOWN1 |
+| | | | |
| ARM | Cortex-A53 | #826319 | ARM64_ERRATUM_826319 |
| ARM | Cortex-A53 | #827319 | ARM64_ERRATUM_827319 |
| ARM | Cortex-A53 | #824069 | ARM64_ERRATUM_824069 |
| Qualcomm Tech. | Falkor v1 | E1009 | QCOM_FALKOR_ERRATUM_1009 |
| Qualcomm Tech. | QDF2400 ITS | E0065 | QCOM_QDF2400_ERRATUM_0065 |
| Qualcomm Tech. | Falkor v{1,2} | E1041 | QCOM_FALKOR_ERRATUM_1041 |
+ | Fujitsu | A64FX | E#010001 | FUJITSU_ERRATUM_010001 |
M: "Rafael J. Wysocki" <rjw@rjwysocki.net>
M: Len Brown <lenb@kernel.org>
L: linux-acpi@vger.kernel.org
+R: James Morse <james.morse@arm.com>
R: Tony Luck <tony.luck@intel.com>
R: Borislav Petkov <bp@alien8.de>
F: drivers/acpi/apei/
M: Hanjun Guo <hanjun.guo@linaro.org>
M: Sudeep Holla <sudeep.holla@arm.com>
L: linux-acpi@vger.kernel.org
+ L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
S: Maintained
F: drivers/acpi/arm64
F: include/uapi/linux/wmi.h
AD1889 ALSA SOUND DRIVER
-M: Thibaut Varene <T-Bone@parisc-linux.org>
-W: http://wiki.parisc-linux.org/AD1889
+W: https://parisc.wiki.kernel.org/index.php/AD1889
L: linux-parisc@vger.kernel.org
S: Maintained
F: sound/pci/ad1889.*
F: Documentation/hwmon/fam15h_power
F: drivers/hwmon/fam15h_power.c
+AMD FCH GPIO DRIVER
+M: Enrico Weigelt, metux IT consult <info@metux.net>
+L: linux-gpio@vger.kernel.org
+S: Maintained
+F: drivers/gpio/gpio-amd-fch.c
+F: include/linux/platform_data/gpio/gpio-amd-fch.h
+
AMD GEODE CS5536 USB DEVICE CONTROLLER DRIVER
L: linux-geode@lists.infradead.org (moderated for non-subscribers)
S: Orphan
F: drivers/iio/adc/ad7124.c
F: Documentation/devicetree/bindings/iio/adc/adi,ad7124.txt
+ANALOG DEVICES INC AD7606 DRIVER
+M: Stefan Popa <stefan.popa@analog.com>
+L: linux-iio@vger.kernel.org
+W: http://ez.analog.com/community/linux-device-drivers
+S: Supported
+F: drivers/iio/adc/ad7606.c
+F: Documentation/devicetree/bindings/iio/adc/ad7606.txt
+
+ANALOG DEVICES INC AD7768-1 DRIVER
+M: Stefan Popa <stefan.popa@analog.com>
+L: linux-iio@vger.kernel.org
+W: http://ez.analog.com/community/linux-device-drivers
+S: Supported
+F: drivers/iio/adc/ad7768-1.c
+F: Documentation/devicetree/bindings/iio/adc/adi,ad7768-1.txt
+
ANALOG DEVICES INC AD9389B DRIVER
M: Hans Verkuil <hans.verkuil@cisco.com>
L: linux-media@vger.kernel.org
F: net/appletalk/
APPLIED MICRO (APM) X-GENE DEVICE TREE SUPPORT
-M: Duc Dang <dhdang@apm.com>
+M: Khuong Dinh <khuong@os.amperecomputing.com>
S: Supported
F: arch/arm64/boot/dts/apm/
APPLIED MICRO (APM) X-GENE SOC EDAC
-M: Loc Ho <lho@apm.com>
+M: Khuong Dinh <khuong@os.amperecomputing.com>
S: Supported
F: drivers/edac/xgene_edac.c
F: Documentation/devicetree/bindings/edac/apm-xgene-edac.txt
APPLIED MICRO (APM) X-GENE SOC ETHERNET (V2) DRIVER
-M: Iyappan Subramanian <isubramanian@apm.com>
-M: Keyur Chudgar <kchudgar@apm.com>
+M: Iyappan Subramanian <iyappan@os.amperecomputing.com>
+M: Keyur Chudgar <keyur@os.amperecomputing.com>
S: Supported
F: drivers/net/ethernet/apm/xgene-v2/
APPLIED MICRO (APM) X-GENE SOC ETHERNET DRIVER
-M: Iyappan Subramanian <isubramanian@apm.com>
-M: Keyur Chudgar <kchudgar@apm.com>
-M: Quan Nguyen <qnguyen@apm.com>
+M: Iyappan Subramanian <iyappan@os.amperecomputing.com>
+M: Keyur Chudgar <keyur@os.amperecomputing.com>
+M: Quan Nguyen <quan@os.amperecomputing.com>
S: Supported
F: drivers/net/ethernet/apm/xgene/
F: drivers/net/phy/mdio-xgene.c
F: Documentation/devicetree/bindings/net/apm-xgene-mdio.txt
APPLIED MICRO (APM) X-GENE SOC PMU
-M: Tai Nguyen <ttnguyen@apm.com>
+M: Khuong Dinh <khuong@os.amperecomputing.com>
S: Supported
F: drivers/perf/xgene_pmu.c
F: Documentation/perf/xgene-pmu.txt
F: drivers/gpu/drm/arm/hdlcd_*
F: Documentation/devicetree/bindings/display/arm,hdlcd.txt
+ARM KOMEDA DRM-KMS DRIVER
+M: James (Qian) Wang <james.qian.wang@arm.com>
+M: Liviu Dudau <liviu.dudau@arm.com>
+L: Mali DP Maintainers <malidp@foss.arm.com>
+S: Supported
+T: git git://linux-arm.org/linux-ld.git for-upstream/mali-dp
+F: drivers/gpu/drm/arm/display/include/
+F: drivers/gpu/drm/arm/display/komeda/
+F: Documentation/devicetree/bindings/display/arm/arm,komeda.txt
+F: Documentation/gpu/komeda-kms.rst
+
ARM MALI-DP DRM DRIVER
M: Liviu Dudau <liviu.dudau@arm.com>
M: Brian Starkey <brian.starkey@arm.com>
-M: Mali DP Maintainers <malidp@foss.arm.com>
+L: Mali DP Maintainers <malidp@foss.arm.com>
S: Supported
+T: git git://linux-arm.org/linux-ld.git for-upstream/mali-dp
F: drivers/gpu/drm/arm/
F: Documentation/devicetree/bindings/display/arm,malidp.txt
+F: Documentation/gpu/afbc.rst
ARM MFM AND FLOPPY DRIVERS
M: Ian Molton <spyro@f2s.com>
F: arch/arm*/include/asm/perf_event.h
F: drivers/perf/*
F: include/linux/perf/arm_pmu.h
- F: Documentation/devicetree/bindings/arm/pmu.txt
+ F: Documentation/devicetree/bindings/arm/pmu.yaml
F: Documentation/devicetree/bindings/perf/
ARM PORT
F: arch/arm/boot/dts/aspeed-*
N: aspeed
+ARM/BITMAIN ARCHITECTURE
+M: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
+L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
+S: Maintained
+F: arch/arm64/boot/dts/bitmain/
+F: Documentation/devicetree/bindings/arm/bitmain.yaml
+
ARM/CALXEDA HIGHBANK ARCHITECTURE
M: Rob Herring <robh@kernel.org>
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
M: Shawn Guo <shawnguo@kernel.org>
M: Sascha Hauer <s.hauer@pengutronix.de>
R: Pengutronix Kernel Team <kernel@pengutronix.de>
-R: Fabio Estevam <fabio.estevam@nxp.com>
+R: Fabio Estevam <festevam@gmail.com>
R: NXP Linux Team <linux-imx@nxp.com>
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
S: Maintained
T: git git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux.git
-F: arch/arm/mach-imx/
-F: arch/arm/mach-mxs/
-F: arch/arm/boot/dts/imx*
-F: arch/arm/configs/imx*_defconfig
-F: arch/arm64/boot/dts/freescale/imx*
-F: drivers/clk/imx/
-F: drivers/firmware/imx/
-F: drivers/soc/imx/
-F: include/linux/firmware/imx/
-F: include/soc/imx/
+N: imx
+N: mxs
+X: drivers/media/i2c/
ARM/FREESCALE VYBRID ARM ARCHITECTURE
M: Shawn Guo <shawnguo@kernel.org>
F: arch/arm/mach-mvebu/
F: arch/arm64/boot/dts/marvell/armada*
F: drivers/cpufreq/armada-37xx-cpufreq.c
+F: drivers/cpufreq/armada-8k-cpufreq.c
F: drivers/cpufreq/mvebu-cpufreq.c
F: drivers/irqchip/irq-armada-370-xp.c
F: drivers/irqchip/irq-mvebu-*
F: drivers/video/fbdev/nuc900fb.c
ARM/OPENMOKO NEO FREERUNNER (GTA02) MACHINE SUPPORT
-M: Nelson Castillo <arhuaco@freaks-unidos.net>
L: openmoko-kernel@lists.openmoko.org (subscribers-only)
W: http://wiki.openmoko.org/wiki/Neo_FreeRunner
-S: Supported
+S: Orphan
+F: arch/arm/mach-s3c24xx/mach-gta02.c
+F: arch/arm/mach-s3c24xx/gta02.h
ARM/Orion SoC/Technologic Systems TS-78xx platform support
M: Alexander Clouter <alex@digriz.org.uk>
L: linux-arm-msm@vger.kernel.org
S: Maintained
F: Documentation/devicetree/bindings/soc/qcom/
+F: Documentation/devicetree/bindings/*/qcom*
F: arch/arm/boot/dts/qcom-*.dts
F: arch/arm/boot/dts/qcom-*.dtsi
F: arch/arm/mach-qcom/
-F: arch/arm64/boot/dts/qcom/*
+F: arch/arm64/boot/dts/qcom/
+F: drivers/*/qcom/
+F: drivers/*/qcom*
+F: drivers/*/*/qcom/
+F: drivers/*/*/qcom*
+F: drivers/*/pm8???-*
+F: drivers/bluetooth/btqcomsmd.c
+F: drivers/clocksource/timer-qcom.c
+F: drivers/extcon/extcon-qcom*
+F: drivers/iommu/msm*
F: drivers/i2c/busses/i2c-qup.c
-F: drivers/clk/qcom/
-F: drivers/dma/qcom/
-F: drivers/soc/qcom/
+F: drivers/i2c/busses/i2c-qcom-geni.c
+F: drivers/mfd/ssbi.c
+F: drivers/mmc/host/mmci_qcom*
+F: drivers/mmc/host/sdhci_msm.c
+F: drivers/pci/controller/dwc/pcie-qcom.c
+F: drivers/phy/qualcomm/
+F: drivers/power/*/msm*
+F: drivers/reset/reset-qcom-*
+F: drivers/scsi/ufs/ufs-qcom.*
F: drivers/spi/spi-qup.c
+F: drivers/spi/spi-geni-qcom.c
+F: drivers/spi/spi-qcom-qspi.c
F: drivers/tty/serial/msm_serial.c
-F: drivers/*/pm8???-*
-F: drivers/mfd/ssbi.c
-F: drivers/firmware/qcom_scm*
+F: drivers/usb/dwc3/dwc3-qcom.c
+F: include/dt-bindings/*/qcom*
+F: include/linux/*/qcom*
T: git git://git.kernel.org/pub/scm/linux/kernel/git/agross/linux.git
ARM/RADISYS ENP2611 MACHINE SUPPORT
T: git git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas.git next
S: Supported
F: arch/arm64/boot/dts/renesas/
-F: Documentation/devicetree/bindings/arm/shmobile.txt
+F: Documentation/devicetree/bindings/arm/renesas.yaml
F: drivers/soc/renesas/
F: include/linux/soc/renesas/
F: Documentation/devicetree/bindings/media/s5p-cec.txt
ARM/SAMSUNG S5P SERIES JPEG CODEC SUPPORT
-M: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
+M: Andrzej Pietrasiewicz <andrzejtp2010@gmail.com>
M: Jacek Anaszewski <jacek.anaszewski@gmail.com>
+M: Sylwester Nawrocki <s.nawrocki@samsung.com>
L: linux-arm-kernel@lists.infradead.org
L: linux-media@vger.kernel.org
S: Maintained
T: git git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas.git next
S: Supported
F: arch/arm/boot/dts/emev2*
+F: arch/arm/boot/dts/gr-peach*
+F: arch/arm/boot/dts/iwg20d-q7*
F: arch/arm/boot/dts/r7s*
F: arch/arm/boot/dts/r8a*
F: arch/arm/boot/dts/r9a*
F: arch/arm/configs/shmobile_defconfig
F: arch/arm/include/debug/renesas-scif.S
F: arch/arm/mach-shmobile/
-F: Documentation/devicetree/bindings/arm/shmobile.txt
+F: Documentation/devicetree/bindings/arm/renesas.yaml
F: drivers/soc/renesas/
F: include/linux/soc/renesas/
S: Maintained
F: Documentation/devicetree/bindings/eeprom/at24.txt
F: drivers/misc/eeprom/at24.c
-F: include/linux/platform_data/at24.h
ATA OVER ETHERNET (AOE) DRIVER
M: "Ed L. Cashin" <ed.cashin@acm.org>
S: Maintained
F: arch/*/include/asm/atomic*.h
F: include/*/atomic*.h
+F: scripts/atomic/
ATTO EXPRESSSAS SAS/SATA RAID SCSI DRIVER
M: Bradley Grove <linuxdrivers@attotech.com>
BPF (Safe dynamic programs and tools)
M: Alexei Starovoitov <ast@kernel.org>
M: Daniel Borkmann <daniel@iogearbox.net>
+R: Martin KaFai Lau <kafai@fb.com>
+R: Song Liu <songliubraving@fb.com>
+R: Yonghong Song <yhs@fb.com>
L: netdev@vger.kernel.org
-L: linux-kernel@vger.kernel.org
+L: bpf@vger.kernel.org
T: git git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf.git
T: git git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git
Q: https://patchwork.ozlabs.org/project/netdev/list/?delegate=77147
F: tools/bpf/
F: tools/lib/bpf/
F: tools/testing/selftests/bpf/
+K: bpf
+N: bpf
BPF JIT for ARM
M: Shubham Bansal <illusionist.neo@gmail.com>
L: netdev@vger.kernel.org
+L: bpf@vger.kernel.org
S: Maintained
F: arch/arm/net/
M: Alexei Starovoitov <ast@kernel.org>
M: Zi Shen Lim <zlim.lnx@gmail.com>
L: netdev@vger.kernel.org
+L: bpf@vger.kernel.org
S: Supported
F: arch/arm64/net/
BPF JIT for MIPS (32-BIT AND 64-BIT)
M: Paul Burton <paul.burton@mips.com>
L: netdev@vger.kernel.org
+L: bpf@vger.kernel.org
S: Maintained
F: arch/mips/net/
BPF JIT for NFP NICs
M: Jakub Kicinski <jakub.kicinski@netronome.com>
L: netdev@vger.kernel.org
+L: bpf@vger.kernel.org
S: Supported
F: drivers/net/ethernet/netronome/nfp/bpf/
M: Naveen N. Rao <naveen.n.rao@linux.ibm.com>
M: Sandipan Das <sandipan@linux.ibm.com>
L: netdev@vger.kernel.org
+L: bpf@vger.kernel.org
S: Maintained
F: arch/powerpc/net/
+BPF JIT for RISC-V (RV64G)
+M: Björn Töpel <bjorn.topel@gmail.com>
+L: netdev@vger.kernel.org
+S: Maintained
+F: arch/riscv/net/
+
BPF JIT for S390
M: Martin Schwidefsky <schwidefsky@de.ibm.com>
M: Heiko Carstens <heiko.carstens@de.ibm.com>
L: netdev@vger.kernel.org
+L: bpf@vger.kernel.org
S: Maintained
F: arch/s390/net/
X: arch/s390/net/pnet.c
BPF JIT for SPARC (32-BIT AND 64-BIT)
M: David S. Miller <davem@davemloft.net>
L: netdev@vger.kernel.org
+L: bpf@vger.kernel.org
S: Maintained
F: arch/sparc/net/
BPF JIT for X86 32-BIT
M: Wang YanQing <udknight@gmail.com>
L: netdev@vger.kernel.org
+L: bpf@vger.kernel.org
S: Maintained
F: arch/x86/net/bpf_jit_comp32.c
M: Alexei Starovoitov <ast@kernel.org>
M: Daniel Borkmann <daniel@iogearbox.net>
L: netdev@vger.kernel.org
+L: bpf@vger.kernel.org
S: Supported
F: arch/x86/net/
X: arch/x86/net/bpf_jit_comp32.c
F: include/linux/bcm963xx_tag.h
BROADCOM BNX2 GIGABIT ETHERNET DRIVER
-M: Rasesh Mody <rasesh.mody@cavium.com>
-M: Dept-GELinuxNICDev@cavium.com
+M: Rasesh Mody <rmody@marvell.com>
+M: GR-Linux-NIC-Dev@marvell.com
L: netdev@vger.kernel.org
S: Supported
F: drivers/net/ethernet/broadcom/bnx2.*
F: drivers/scsi/bnx2i/
BROADCOM BNX2X 10 GIGABIT ETHERNET DRIVER
-M: Ariel Elior <ariel.elior@cavium.com>
-M: Sudarsana Kalluru <sudarsana.kalluru@cavium.com>
-M: everest-linux-l2@cavium.com
+M: Ariel Elior <aelior@marvell.com>
+M: Sudarsana Kalluru <skalluru@marvell.com>
+M: GR-everest-linux-l2@marvell.com
L: netdev@vger.kernel.org
S: Supported
F: drivers/net/ethernet/broadcom/bnx2x/
F: drivers/scsi/bfa/
BROCADE BNA 10 GIGABIT ETHERNET DRIVER
-M: Rasesh Mody <rasesh.mody@cavium.com>
-M: Sudarsana Kalluru <sudarsana.kalluru@cavium.com>
-M: Dept-GELinuxNICDev@cavium.com
+M: Rasesh Mody <rmody@marvell.com>
+M: Sudarsana Kalluru <skalluru@marvell.com>
+M: GR-Linux-NIC-Dev@marvell.com
L: netdev@vger.kernel.org
S: Supported
F: drivers/net/ethernet/brocade/bna/
F: drivers/media/platform/marvell-ccic/
CAIF NETWORK LAYER
-M: Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>
L: netdev@vger.kernel.org
-S: Supported
+S: Orphan
F: Documentation/networking/caif/
F: drivers/net/caif/
F: include/uapi/linux/caif/
F: Documentation/devicetree/bindings/net/ieee802154/cc2520.txt
CCREE ARM TRUSTZONE CRYPTOCELL REE DRIVER
-M: Yael Chemla <yael.chemla@foss.arm.com>
M: Gilad Ben-Yossef <gilad@benyossef.com>
L: linux-crypto@vger.kernel.org
S: Supported
N: cros-ec
F: drivers/power/supply/cros_usbpd-charger.c
+CHROMEOS EC CODEC DRIVER
+M: Cheng-Yi Chiang <cychiang@chromium.org>
+S: Maintained
+R: Enric Balletbo i Serra <enric.balletbo@collabora.com>
+R: Guenter Roeck <groeck@chromium.org>
+F: Documentation/devicetree/bindings/sound/google,cros-ec-codec.txt
+F: sound/soc/codecs/cros_ec_codec.*
+
CIRRUS LOGIC AUDIO CODEC DRIVERS
M: Brian Austin <brian.austin@cirrus.com>
M: Paul Handrigan <Paul.Handrigan@cirrus.com>
S: Maintained
F: drivers/net/ethernet/cirrus/ep93xx_eth.c
+CIRRUS LOGIC LOCHNAGAR DRIVER
+M: Charles Keepax <ckeepax@opensource.cirrus.com>
+M: Richard Fitzgerald <rf@opensource.cirrus.com>
+L: patches@opensource.cirrus.com
+S: Supported
+F: drivers/clk/clk-lochnagar.c
+F: drivers/mfd/lochnagar-i2c.c
+F: drivers/pinctrl/cirrus/pinctrl-lochnagar.c
+F: drivers/regulator/lochnagar-regulator.c
+F: include/dt-bindings/clk/lochnagar.h
+F: include/dt-bindings/pinctrl/lochnagar.h
+F: include/linux/mfd/lochnagar*
+F: Documentation/devicetree/bindings/mfd/cirrus,lochnagar.txt
+F: Documentation/devicetree/bindings/clock/cirrus,lochnagar.txt
+F: Documentation/devicetree/bindings/pinctrl/cirrus,lochnagar.txt
+F: Documentation/devicetree/bindings/regulator/cirrus,lochnagar.txt
+
CISCO FCOE HBA DRIVER
M: Satish Kharat <satishkh@cisco.com>
M: Sesidhar Baddela <sebaddel@cisco.com>
L: cgroups@vger.kernel.org
T: git git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup.git
S: Maintained
-F: Documentation/cgroup*
+F: Documentation/admin-guide/cgroup-v2.rst
+F: Documentation/cgroup-v1/
F: include/linux/cgroup*
-F: kernel/cgroup*
+F: kernel/cgroup/
CONTROL GROUP - CPUSET
M: Li Zefan <lizefan@huawei.com>
L: linux-pm@vger.kernel.org
S: Maintained
T: git git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm.git
-T: git git://git.linaro.org/people/vireshk/linux.git (For ARM Updates)
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/pm.git (For ARM Updates)
B: https://bugzilla.kernel.org
F: Documentation/admin-guide/pm/cpufreq.rst
F: Documentation/admin-guide/pm/intel_pstate.rst
CPU POWER MONITORING SUBSYSTEM
M: Thomas Renninger <trenn@suse.com>
M: Shuah Khan <shuah@kernel.org>
+M: Shuah Khan <skhan@linuxfoundation.org>
L: linux-pm@vger.kernel.org
S: Maintained
F: tools/power/cpupower/
T: git git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm.git
B: https://bugzilla.kernel.org
F: Documentation/admin-guide/pm/cpuidle.rst
+F: Documentation/driver-api/pm/cpuidle.rst
F: drivers/cpuidle/*
F: include/linux/cpuidle.h
F: drivers/media/dvb-frontends/cxd2820r*
CXGB3 ETHERNET DRIVER (CXGB3)
-M: Arjun Vynipadath <arjun@chelsio.com>
+M: Vishal Kulkarni <vishal@chelsio.com>
L: netdev@vger.kernel.org
W: http://www.chelsio.com
S: Supported
F: drivers/crypto/chelsio
CXGB4 ETHERNET DRIVER (CXGB4)
-M: Arjun Vynipadath <arjun@chelsio.com>
+M: Vishal Kulkarni <vishal@chelsio.com>
L: netdev@vger.kernel.org
W: http://www.chelsio.com
S: Supported
DRM DRIVER FOR MSM ADRENO GPU
M: Rob Clark <robdclark@gmail.com>
+M: Sean Paul <sean@poorly.run>
L: linux-arm-msm@vger.kernel.org
L: dri-devel@lists.freedesktop.org
L: freedreno@lists.freedesktop.org
-T: git git://people.freedesktop.org/~robclark/linux
+T: git https://gitlab.freedesktop.org/drm/msm.git
S: Maintained
F: drivers/gpu/drm/msm/
F: include/uapi/drm/msm_drm.h
M: Dave Airlie <airlied@redhat.com>
M: Gerd Hoffmann <kraxel@redhat.com>
L: virtualization@lists.linux-foundation.org
+L: spice-devel@lists.freedesktop.org
T: git git://anongit.freedesktop.org/drm/drm-misc
S: Maintained
F: drivers/gpu/drm/qxl/
F: drivers/gpu/drm/sis/
F: include/uapi/drm/sis_drm.h
+DRM DRIVER FOR SITRONIX ST7701 PANELS
+M: Jagan Teki <jagan@amarulasolutions.com>
+S: Maintained
+F: drivers/gpu/drm/panel/panel-sitronix-st7701.c
+F: Documentation/devicetree/bindings/display/panel/sitronix,st7701.txt
+
DRM DRIVER FOR SITRONIX ST7586 PANELS
M: David Lechner <david@lechnology.com>
S: Maintained
S: Orphan / Obsolete
F: drivers/gpu/drm/tdfx/
+DRM DRIVER FOR TPO TPG110 PANELS
+M: Linus Walleij <linus.walleij@linaro.org>
+T: git git://anongit.freedesktop.org/drm/drm-misc
+S: Maintained
+F: drivers/gpu/drm/panel/panel-tpo-tpg110.c
+F: Documentation/devicetree/bindings/display/panel/tpo,tpg110.txt
+
DRM DRIVER FOR USB DISPLAYLINK VIDEO ADAPTERS
M: Dave Airlie <airlied@redhat.com>
R: Sean Paul <sean@poorly.run>
F: drivers/gpu/drm/udl/
T: git git://anongit.freedesktop.org/drm/drm-misc
+DRM DRIVER FOR VIRTUAL KERNEL MODESETTING (VKMS)
+M: Rodrigo Siqueira <rodrigosiqueiramelo@gmail.com>
+R: Haneen Mohammed <hamohammed.sa@gmail.com>
+R: Daniel Vetter <daniel@ffwll.ch>
+T: git git://anongit.freedesktop.org/drm/drm-misc
+S: Maintained
+L: dri-devel@lists.freedesktop.org
+F: drivers/gpu/drm/vkms/
+F: Documentation/gpu/vkms.rst
+
DRM DRIVER FOR VMWARE VIRTUAL GPU
M: "VMware Graphics" <linux-graphics-maintainer@vmware.com>
M: Thomas Hellstrom <thellstrom@vmware.com>
T: git git://anongit.freedesktop.org/drm/drm-misc
DRM DRIVERS FOR BRIDGE CHIPS
-M: Archit Taneja <architt@codeaurora.org>
M: Andrzej Hajda <a.hajda@samsung.com>
R: Laurent Pinchart <Laurent.pinchart@ideasonboard.com>
S: Maintained
M: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com>
T: git git://anongit.freedesktop.org/drm/drm-misc
L: dri-devel@lists.freedesktop.org
-L: xen-devel@lists.xen.org
+L: xen-devel@lists.xenproject.org (moderated for non-subscribers)
S: Supported
F: drivers/gpu/drm/xen/
F: Documentation/gpu/xen-front.rst
S: Maintained
F: drivers/edac/amd64_edac*
+EDAC-AST2500
+M: Stefan Schaeckeler <sschaeck@cisco.com>
+S: Supported
+F: drivers/edac/aspeed_edac.c
+F: Documentation/devicetree/bindings/edac/aspeed-sdram-edac.txt
+
EDAC-CALXEDA
M: Robert Richter <rric@kernel.org>
L: linux-edac@vger.kernel.org
EDAC-CORE
M: Borislav Petkov <bp@alien8.de>
M: Mauro Carvalho Chehab <mchehab@kernel.org>
+R: James Morse <james.morse@arm.com>
L: linux-edac@vger.kernel.org
T: git git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp.git for-next
T: git git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-edac.git linux_next
F: drivers/media/tuners/fc2580*
FCOE SUBSYSTEM (libfc, libfcoe, fcoe)
-M: Johannes Thumshirn <jth@kernel.org>
+M: Hannes Reinecke <hare@suse.de>
L: linux-scsi@vger.kernel.org
W: www.Open-FCoE.org
S: Supported
S: Maintained
F: fs/*
F: include/linux/fs.h
+F: include/linux/fs_types.h
F: include/uapi/linux/fs.h
FINTEK F75375S HARDWARE MONITOR AND FAN CONTROLLER DRIVER
S: Maintained
F: drivers/dma/fsldma.*
+FREESCALE ENETC ETHERNET DRIVERS
+M: Claudiu Manoil <claudiu.manoil@nxp.com>
+L: netdev@vger.kernel.org
+S: Maintained
+F: drivers/net/ethernet/freescale/enetc/
+
FREESCALE eTSEC ETHERNET DRIVER (GIANFAR)
M: Claudiu Manoil <claudiu.manoil@nxp.com>
L: netdev@vger.kernel.org
M: Yangbo Lu <yangbo.lu@nxp.com>
L: netdev@vger.kernel.org
S: Maintained
+F: drivers/net/ethernet/freescale/enetc/enetc_ptp.c
F: drivers/ptp/ptp_qoriq.c
+F: drivers/ptp/ptp_qoriq_debugfs.c
F: include/linux/fsl/ptp_qoriq.h
F: Documentation/devicetree/bindings/ptp/ptp-qoriq.txt
FREESCALE QUAD SPI DRIVER
M: Han Xu <han.xu@nxp.com>
-L: linux-mtd@lists.infradead.org
+L: linux-spi@vger.kernel.org
S: Maintained
-F: drivers/mtd/spi-nor/fsl-quadspi.c
+F: drivers/spi/spi-fsl-qspi.c
FREESCALE QUICC ENGINE LIBRARY
M: Qiang Zhao <qiang.zhao@nxp.com>
M: Timur Tabi <timur@kernel.org>
M: Nicolin Chen <nicoleotsuka@gmail.com>
M: Xiubo Li <Xiubo.Lee@gmail.com>
-R: Fabio Estevam <fabio.estevam@nxp.com>
+R: Fabio Estevam <festevam@gmail.com>
L: alsa-devel@alsa-project.org (moderated for non-subscribers)
L: linuxppc-dev@lists.ozlabs.org
S: Maintained
FSCRYPT: FILE SYSTEM LEVEL ENCRYPTION SUPPORT
M: Theodore Y. Ts'o <tytso@mit.edu>
M: Jaegeuk Kim <jaegeuk@kernel.org>
+M: Eric Biggers <ebiggers@kernel.org>
L: linux-fscrypt@vger.kernel.org
Q: https://patchwork.kernel.org/project/linux-fscrypt/list/
-T: git git://git.kernel.org/pub/scm/linux/kernel/git/tytso/fscrypt.git
+T: git git://git.kernel.org/pub/scm/fs/fscrypt/fscrypt.git
S: Supported
F: fs/crypto/
F: include/linux/fscrypt*.h
F: drivers/clk/h8300/
F: drivers/irqchip/irq-renesas-h8*.c
+HABANALABS PCI DRIVER
+M: Oded Gabbay <oded.gabbay@gmail.com>
+T: git https://github.com/HabanaAI/linux.git
+S: Supported
+F: drivers/misc/habanalabs/
+F: include/uapi/misc/habanalabs.h
+F: Documentation/ABI/testing/sysfs-driver-habanalabs
+F: Documentation/ABI/testing/debugfs-driver-habanalabs
+
HACKRF MEDIA DRIVER
M: Antti Palosaari <crope@iki.fi>
L: linux-media@vger.kernel.org
M: Stephen Hemminger <sthemmin@microsoft.com>
M: Sasha Levin <sashal@kernel.org>
T: git git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux.git
-L: devel@linuxdriverproject.org
+L: linux-hyperv@vger.kernel.org
S: Supported
F: Documentation/networking/device_drivers/microsoft/netvsc.txt
F: arch/x86/include/asm/mshyperv.h
I3C SUBSYSTEM
M: Boris Brezillon <bbrezillon@kernel.org>
L: linux-i3c@lists.infradead.org
+C: irc://chat.freenode.net/linux-i3c
T: git git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linux.git
S: Maintained
F: Documentation/ABI/testing/sysfs-bus-i3c
M: Sakari Ailus <sakari.ailus@linux.intel.com>
M: Bingbu Cao <bingbu.cao@intel.com>
R: Tian Shu Qiu <tian.shu.qiu@intel.com>
-R: Jian Xu Zheng <jian.xu.zheng@intel.com>
L: linux-media@vger.kernel.org
S: Maintained
F: drivers/media/pci/intel/ipu3/
S: Maintained
F: drivers/gpio/gpio-intel-mid.c
+INTERCONNECT API
+M: Georgi Djakov <georgi.djakov@linaro.org>
+S: Maintained
+F: Documentation/interconnect/
+F: Documentation/devicetree/bindings/interconnect/
+F: drivers/interconnect/
+F: include/dt-bindings/interconnect/
+F: include/linux/interconnect-provider.h
+F: include/linux/interconnect.h
+
INVENSENSE MPU-3050 GYROSCOPE DRIVER
M: Linus Walleij <linus.walleij@linaro.org>
L: linux-iio@vger.kernel.org
KERNEL SELFTEST FRAMEWORK
M: Shuah Khan <shuah@kernel.org>
+M: Shuah Khan <skhan@linuxfoundation.org>
L: linux-kselftest@vger.kernel.org
T: git git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest.git
Q: https://patchwork.kernel.org/project/linux-kselftest/list/
KEYS-TRUSTED
M: James Bottomley <jejb@linux.ibm.com>
M: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
-M: Mimi Zohar <zohar@linuxibm.com>
+M: Mimi Zohar <zohar@linux.ibm.com>
L: linux-integrity@vger.kernel.org
L: keyrings@vger.kernel.org
S: Supported
M: John Fastabend <john.fastabend@gmail.com>
M: Daniel Borkmann <daniel@iogearbox.net>
L: netdev@vger.kernel.org
+L: bpf@vger.kernel.org
S: Maintained
F: include/linux/skmsg.h
F: net/core/skmsg.c
LIVE PATCHING
M: Josh Poimboeuf <jpoimboe@redhat.com>
-M: Jessica Yu <jeyu@kernel.org>
M: Jiri Kosina <jikos@kernel.org>
M: Miroslav Benes <mbenes@suse.cz>
-R: Petr Mladek <pmladek@suse.com>
+M: Petr Mladek <pmladek@suse.com>
+R: Joe Lawrence <joe.lawrence@redhat.com>
S: Maintained
F: kernel/livepatch/
F: include/linux/livepatch.h
F: Documentation/livepatch/
F: Documentation/ABI/testing/sysfs-kernel-livepatch
F: samples/livepatch/
+F: tools/testing/selftests/livepatch/
L: live-patching@vger.kernel.org
-T: git git://git.kernel.org/pub/scm/linux/kernel/git/jikos/livepatching.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/livepatching/livepatching.git
LLC (802.2)
L: netdev@vger.kernel.org
F: include/uapi/drm/armada_drm.h
F: Documentation/devicetree/bindings/display/armada/
+MARVELL ARMADA 3700 PHY DRIVERS
+M: Miquel Raynal <miquel.raynal@bootlin.com>
+S: Maintained
+F: drivers/phy/marvell/phy-mvebu-a3700-comphy.c
+F: drivers/phy/marvell/phy-mvebu-a3700-utmi.c
+F: Documentation/devicetree/bindings/phy/phy-mvebu-comphy.txt
+F: Documentation/devicetree/bindings/phy/phy-mvebu-utmi.txt
+
MARVELL CRYPTO DRIVER
M: Boris Brezillon <bbrezillon@kernel.org>
M: Arnaud Ebalard <arno@natisbad.org>
S: Maintained
F: drivers/media/platform/imx-pxp.[ch]
+MEDIA DRIVERS FOR FREESCALE IMX7
+M: Rui Miguel Silva <rmfrfs@gmail.com>
+L: linux-media@vger.kernel.org
+T: git git://linuxtv.org/media_tree.git
+S: Maintained
+F: Documentation/devicetree/bindings/media/imx7-csi.txt
+F: Documentation/devicetree/bindings/media/imx7-mipi-csi2.txt
+F: Documentation/media/v4l-drivers/imx7.rst
+F: drivers/staging/media/imx/imx7-media-csi.c
+F: drivers/staging/media/imx/imx7-mipi-csis.c
+
MEDIA DRIVERS FOR HELENE
M: Abylay Ospan <aospan@netup.ru>
L: linux-media@vger.kernel.org
F: include/uapi/linux/membarrier.h
F: arch/powerpc/include/asm/membarrier.h
+MEMBLOCK
+M: Mike Rapoport <rppt@linux.ibm.com>
+L: linux-mm@kvack.org
+S: Maintained
+F: include/linux/memblock.h
+F: mm/memblock.c
+F: Documentation/core-api/boot-time-mm.rst
+
MEMORY MANAGEMENT
L: linux-mm@kvack.org
W: http://www.linux-mm.org
F: Documentation/devicetree/bindings/media/meson-ao-cec.txt
T: git git://linuxtv.org/media_tree.git
+MESON NAND CONTROLLER DRIVER FOR AMLOGIC SOCS
+M: Liang Yang <liang.yang@amlogic.com>
+L: linux-mtd@lists.infradead.org
+S: Maintained
+F: drivers/mtd/nand/raw/meson_*
+F: Documentation/devicetree/bindings/mtd/amlogic,meson-nand.txt
+
+METHODE UDPU SUPPORT
+M: Vladimir Vid <vladimir.vid@sartura.hr>
+S: Maintained
+F: arch/arm64/boot/dts/marvell/armada-3720-uDPU.dts
+
MICROBLAZE ARCHITECTURE
M: Michal Simek <monstr@monstr.eu>
W: http://www.monstr.eu/fdt/
F: net/dsa/
F: include/net/dsa.h
F: include/linux/dsa/
+F: include/linux/platform_data/dsa.h
F: drivers/net/dsa/
NETWORKING [GENERAL]
F: drivers/net/netdevsim/*
NETXEN (1/10) GbE SUPPORT
-M: Manish Chopra <manish.chopra@cavium.com>
-M: Rahul Verma <rahul.verma@cavium.com>
-M: Dept-GELinuxNICDev@cavium.com
+M: Manish Chopra <manishc@marvell.com>
+M: Rahul Verma <rahulv@marvell.com>
+M: GR-Linux-NIC-Dev@marvell.com
L: netdev@vger.kernel.org
S: Supported
F: drivers/net/ethernet/qlogic/netxen/
F: drivers/power/supply/isp1704_charger.c
F: drivers/power/supply/rx51_battery.c
+NOLIBC HEADER FILE
+M: Willy Tarreau <w@1wt.eu>
+S: Maintained
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/wtarreau/nolibc.git
+F: tools/include/nolibc/
+
NTB AMD DRIVER
M: Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
L: linux-ntb@googlegroups.com
F: include/linux/nvmem-provider.h
NXP SGTL5000 DRIVER
-M: Fabio Estevam <fabio.estevam@nxp.com>
+M: Fabio Estevam <festevam@gmail.com>
L: alsa-devel@alsa-project.org (moderated for non-subscribers)
S: Maintained
F: Documentation/devicetree/bindings/sound/sgtl5000.txt
F: lib/test_objagg.c
F: include/linux/objagg.h
+NXP FSPI DRIVER
+R: Yogesh Gaur <yogeshgaur.83@gmail.com>
+M: Ashish Kumar <ashish.kumar@nxp.com>
+L: linux-spi@vger.kernel.org
+S: Maintained
+F: drivers/spi/spi-nxp-fspi.c
+F: Documentation/devicetree/bindings/spi/spi-nxp-fspi.txt
+
OBJTOOL
M: Josh Poimboeuf <jpoimboe@redhat.com>
M: Peter Zijlstra <peterz@infradead.org>
F: drivers/media/i2c/ov7740.c
F: Documentation/devicetree/bindings/media/i2c/ov7740.txt
+OMNIVISION OV9640 SENSOR DRIVER
+M: Petr Cvek <petrcvekcz@gmail.com>
+L: linux-media@vger.kernel.org
+S: Maintained
+F: drivers/media/i2c/ov9640.*
+
+OMNIVISION OV8856 SENSOR DRIVER
+M: Ben Kao <ben.kao@intel.com>
+L: linux-media@vger.kernel.org
+T: git git://linuxtv.org/media_tree.git
+S: Maintained
+F: drivers/media/i2c/ov8856.c
+
OMNIVISION OV9650 SENSOR DRIVER
M: Sakari Ailus <sakari.ailus@linux.intel.com>
R: Akinobu Mita <akinobu.mita@gmail.com>
S: Maintained
F: drivers/tee/optee/
+OP-TEE RANDOM NUMBER GENERATOR (RNG) DRIVER
+M: Sumit Garg <sumit.garg@linaro.org>
+S: Maintained
+F: drivers/char/hw_random/optee-rng.c
+
OPA-VNIC DRIVER
M: Dennis Dalessandro <dennis.dalessandro@intel.com>
M: Niranjana Vishwanathapura <niranjana.vishwanathapura@intel.com>
OPENCORES I2C BUS DRIVER
M: Peter Korsgaard <peter@korsgaard.com>
+M: Andrew Lunn <andrew@lunn.ch>
L: linux-i2c@vger.kernel.org
S: Maintained
F: Documentation/i2c/busses/i2c-ocores
F: drivers/i2c/busses/i2c-ocores.c
+F: include/linux/platform_data/i2c-ocores.h
OPENRISC ARCHITECTURE
M: Jonas Bonn <jonas@southpole.se>
S: Orphan
F: drivers/net/wireless/intersil/orinoco/
-OSD LIBRARY and FILESYSTEM
-M: Boaz Harrosh <ooo@electrozaur.com>
-S: Maintained
-F: drivers/scsi/osd/
-F: include/scsi/osd_*
-F: fs/exofs/
-
OV2659 OMNIVISION SENSOR DRIVER
M: "Lad, Prabhakar" <prabhakar.csengg@gmail.com>
L: linux-media@vger.kernel.org
F: drivers/block/paride/
PARISC ARCHITECTURE
-M: "James E.J. Bottomley" <jejb@parisc-linux.org>
+M: "James E.J. Bottomley" <James.Bottomley@HansenPartnership.com>
M: Helge Deller <deller@gmx.de>
L: linux-parisc@vger.kernel.org
W: http://www.parisc-linux.org/
F: lib/test_parman.c
F: include/linux/parman.h
+PC ENGINES APU BOARD DRIVER
+M: Enrico Weigelt, metux IT consult <info@metux.net>
+S: Maintained
+F: drivers/platform/x86/pcengines-apuv2.c
+
PC87360 HARDWARE MONITORING DRIVER
M: Jim Cromie <jim.cromie@gmail.com>
L: linux-hwmon@vger.kernel.org
F: drivers/pci/controller/pcie-altera.c
PCI DRIVER FOR APPLIEDMICRO XGENE
-M: Tanmay Inamdar <tinamdar@apm.com>
+M: Toan Le <toan@os.amperecomputing.com>
L: linux-pci@vger.kernel.org
L: linux-arm-kernel@lists.infradead.org
S: Maintained
F: drivers/pci/controller/dwc/pcie-armada8k.c
PCI DRIVER FOR CADENCE PCIE IP
-M: Alan Douglas <adouglas@cadence.com>
+M: Tom Joseph <tjoseph@cadence.com>
L: linux-pci@vger.kernel.org
S: Maintained
F: Documentation/devicetree/bindings/pci/cdns,*.txt
F: drivers/pci/controller/pcie-altera-msi.c
PCI MSI DRIVER FOR APPLIEDMICRO XGENE
-M: Duc Dang <dhdang@apm.com>
+M: Toan Le <toan@os.amperecomputing.com>
L: linux-pci@vger.kernel.org
L: linux-arm-kernel@lists.infradead.org
S: Maintained
F: drivers/net/ppp/pptp.c
W: http://sourceforge.net/projects/accel-pptp
-PREEMPTIBLE KERNEL
-M: Robert Love <rml@tech9.net>
-L: kpreempt-tech@lists.sourceforge.net
-W: https://www.kernel.org/pub/linux/kernel/people/rml/preempt-kernel
-S: Supported
-F: Documentation/preempt-locking.txt
-F: include/linux/preempt.h
-
PRINTK
M: Petr Mladek <pmladek@suse.com>
M: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
T: git git://linuxtv.org/media_tree.git
S: Odd Fixes
F: drivers/media/usb/pwc/*
+F: include/trace/events/pwc.h
PWM FAN DRIVER
M: Kamil Debski <kamil@wypas.org>
F: drivers/scsi/qedi/
QLOGIC QL4xxx ETHERNET DRIVER
-M: Ariel Elior <Ariel.Elior@cavium.com>
-M: everest-linux-l2@cavium.com
+M: Ariel Elior <aelior@marvell.com>
+M: GR-everest-linux-l2@marvell.com
L: netdev@vger.kernel.org
S: Supported
F: drivers/net/ethernet/qlogic/qed/
F: drivers/net/ethernet/qlogic/qede/
QLOGIC QL4xxx RDMA DRIVER
-M: Michal Kalderon <Michal.Kalderon@cavium.com>
-M: Ariel Elior <Ariel.Elior@cavium.com>
+M: Michal Kalderon <mkalderon@marvell.com>
+M: Ariel Elior <aelior@marvell.com>
L: linux-rdma@vger.kernel.org
S: Supported
F: drivers/infiniband/hw/qedr/
F: drivers/scsi/qla2xxx/
QLOGIC QLA3XXX NETWORK DRIVER
-M: Dept-GELinuxNICDev@cavium.com
+M: GR-Linux-NIC-Dev@marvell.com
L: netdev@vger.kernel.org
S: Supported
F: Documentation/networking/device_drivers/qlogic/LICENSE.qla3xxx
F: drivers/scsi/qla4xxx/
QLOGIC QLCNIC (1/10)Gb ETHERNET DRIVER
-M: Shahed Shaikh <Shahed.Shaikh@cavium.com>
-M: Manish Chopra <manish.chopra@cavium.com>
-M: Dept-GELinuxNICDev@cavium.com
+M: Shahed Shaikh <shshaikh@marvell.com>
+M: Manish Chopra <manishc@marvell.com>
+M: GR-Linux-NIC-Dev@marvell.com
L: netdev@vger.kernel.org
S: Supported
F: drivers/net/ethernet/qlogic/qlcnic/
QLOGIC QLGE 10Gb ETHERNET DRIVER
-M: Manish Chopra <manish.chopra@cavium.com>
-M: Dept-GELinuxNICDev@cavium.com
+M: Manish Chopra <manishc@marvell.com>
+M: GR-Linux-NIC-Dev@marvell.com
L: netdev@vger.kernel.org
S: Supported
F: drivers/net/ethernet/qlogic/qlge/
F: drivers/media/platform/qcom/camss/
QUALCOMM CPUFREQ DRIVER MSM8996/APQ8096
-M: Ilia Lin <ilia.lin@gmail.com>
-L: linux-pm@vger.kernel.org
-S: Maintained
-F: Documentation/devicetree/bindings/opp/kryo-cpufreq.txt
-F: drivers/cpufreq/qcom-cpufreq-kryo.c
+M: Ilia Lin <ilia.lin@kernel.org>
+L: linux-pm@vger.kernel.org
+S: Maintained
+F: Documentation/devicetree/bindings/opp/kryo-cpufreq.txt
+F: drivers/cpufreq/qcom-cpufreq-kryo.c
QUALCOMM EMAC GIGABIT ETHERNET DRIVER
M: Timur Tabi <timur@kernel.org>
S: Maintained
F: drivers/net/ethernet/qualcomm/emac/
+QUALCOMM ETHQOS ETHERNET DRIVER
+M: Vinod Koul <vkoul@kernel.org>
+M: Niklas Cassel <niklas.cassel@linaro.org>
+L: netdev@vger.kernel.org
+S: Maintained
+F: drivers/net/ethernet/stmicro/stmmac/dwmac-qcom-ethqos.c
+F: Documentation/devicetree/bindings/net/qcom,dwmac.txt
+
QUALCOMM GENERIC INTERFACE I2C DRIVER
M: Alok Chauhan <alokc@codeaurora.org>
M: Karthikeyan Ramasubramanian <kramasub@codeaurora.org>
S: Maintained
F: drivers/rapidio/
+RAS INFRASTRUCTURE
+M: Tony Luck <tony.luck@intel.com>
+M: Borislav Petkov <bp@alien8.de>
+L: linux-edac@vger.kernel.org
+S: Maintained
+F: drivers/ras/
+F: include/linux/ras.h
+F: include/ras/ras_event.h
+F: Documentation/admin-guide/ras.rst
+
RAYLINK/WEBGEAR 802.11 WIRELESS LAN DRIVER
L: linux-wireless@vger.kernel.org
S: Orphan
F: drivers/net/dsa/realtek-smi*
F: drivers/net/dsa/rtl83*
+REDPINE WIRELESS DRIVER
+M: Amitkumar Karwar <amitkarwar@gmail.com>
+M: Siva Rebbagondla <siva8118@gmail.com>
+L: linux-wireless@vger.kernel.org
+S: Maintained
+F: drivers/net/wireless/rsi/
+
REGISTER MAP ABSTRACTION
M: Mark Brown <broonie@kernel.org>
L: linux-kernel@vger.kernel.org
F: Documentation/devicetree/bindings/reset/
F: include/dt-bindings/reset/
F: include/linux/reset.h
+F: include/linux/reset/
F: include/linux/reset-controller.h
RESTARTABLE SEQUENCES SUPPORT
F: include/linux/sched.h
F: include/uapi/linux/sched.h
F: include/linux/wait.h
+F: include/linux/preempt.h
SCR24X CHIP CARD INTERFACE DRIVER
M: Lubomir Rintel <lkundrak@v3.sk>
T: git git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi.git
M: "Martin K. Petersen" <martin.petersen@oracle.com>
T: git git://git.kernel.org/pub/scm/linux/kernel/git/mkp/scsi.git
+Q: https://patchwork.kernel.org/project/linux-scsi/list/
L: linux-scsi@vger.kernel.org
S: Maintained
F: Documentation/devicetree/bindings/scsi/
F: drivers/scsi/st.*
F: drivers/scsi/st_*.h
+SCSI TARGET SUBSYSTEM
+M: "Martin K. Petersen" <martin.petersen@oracle.com>
+L: linux-scsi@vger.kernel.org
+L: target-devel@vger.kernel.org
+W: http://www.linux-iscsi.org
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/mkp/scsi.git
+Q: https://patchwork.kernel.org/project/target-devel/list/
+S: Supported
+F: drivers/target/
+F: include/target/
+F: Documentation/target/
+
SCTP PROTOCOL
M: Vlad Yasevich <vyasevich@gmail.com>
M: Neil Horman <nhorman@tuxdriver.com>
SECURE DIGITAL HOST CONTROLLER INTERFACE (SDHCI) DRIVER
M: Adrian Hunter <adrian.hunter@intel.com>
L: linux-mmc@vger.kernel.org
-T: git git://git.infradead.org/users/ahunter/linux-sdhci.git
S: Maintained
F: drivers/mmc/host/sdhci*
F: include/linux/mmc/sdhci*
+EMMC CMDQ HOST CONTROLLER INTERFACE (CQHCI) DRIVER
+M: Adrian Hunter <adrian.hunter@intel.com>
+M: Ritesh Harjani <riteshh@codeaurora.org>
+M: Asutosh Das <asutoshd@codeaurora.org>
+L: linux-mmc@vger.kernel.org
+S: Maintained
+F: drivers/mmc/host/cqhci*
+
SYNOPSYS SDHCI COMPLIANT DWC MSHC DRIVER
M: Prabu Thangamuthu <prabu.t@synopsys.com>
M: Manjunath M B <manjumb@synopsys.com>
S: Supported
F: drivers/net/ethernet/sfc/
+SFF/SFP/SFP+ MODULE SUPPORT
+M: Russell King <linux@armlinux.org.uk>
+L: netdev@vger.kernel.org
+S: Maintained
+F: drivers/net/phy/phylink.c
+F: drivers/net/phy/sfp*
+F: include/linux/phylink.h
+F: include/linux/sfp.h
+
SGI GRU DRIVER
M: Dimitri Sivanich <sivanich@sgi.com>
S: Maintained
SHARED MEMORY COMMUNICATIONS (SMC) SOCKETS
M: Ursula Braun <ubraun@linux.ibm.com>
+M: Karsten Graul <kgraul@linux.ibm.com>
L: linux-s390@vger.kernel.org
W: http://www.ibm.com/developerworks/linux/linux390/
S: Supported
SPI NOR SUBSYSTEM
M: Marek Vasut <marek.vasut@gmail.com>
+M: Tudor Ambarus <tudor.ambarus@microchip.com>
L: linux-mtd@lists.infradead.org
W: http://www.linux-mtd.infradead.org/
Q: http://patchwork.ozlabs.org/project/linux-mtd/list/
S: Supported
F: drivers/staging/wilc1000/
-STAGING - XGI Z7,Z9,Z11 PCI DISPLAY DRIVER
-M: Arnaud Patard <arnaud.patard@rtp-net.org>
-S: Odd Fixes
-F: drivers/staging/xgifb/
-
STAGING SUBSYSTEM
M: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
T: git git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging.git
F: drivers/tty/serial/8250/8250_dw.c
SYNOPSYS DESIGNWARE APB GPIO DRIVER
-M: Hoan Tran <hotran@apm.com>
+M: Hoan Tran <hoan@os.amperecomputing.com>
L: linux-gpio@vger.kernel.org
S: Maintained
F: drivers/gpio/gpio-dwapb.c
F: fs/sysv/
F: include/linux/sysv_fs.h
-TARGET SUBSYSTEM
-M: "Nicholas A. Bellinger" <nab@linux-iscsi.org>
-L: linux-scsi@vger.kernel.org
-L: target-devel@vger.kernel.org
-W: http://www.linux-iscsi.org
-W: http://groups.google.com/group/linux-iscsi-target-dev
-T: git git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending.git master
-S: Supported
-F: drivers/target/
-F: include/target/
-F: Documentation/target/
-
TASKSTATS STATISTICS INTERFACE
M: Balbir Singh <bsingharora@gmail.com>
S: Maintained
S: Maintained
F: sound/soc/ti/
+Texas Instruments' DAC7612 DAC Driver
+M: Ricardo Ribalda <ricardo@ribalda.com>
+L: linux-iio@vger.kernel.org
+S: Supported
+F: drivers/iio/dac/ti-dac7612.c
+F: Documentation/devicetree/bindings/iio/dac/ti,dac7612.txt
+
THANKO'S RAREMONO AM/FM/SW RADIO RECEIVER USB DRIVER
M: Hans Verkuil <hverkuil@xs4all.nl>
L: linux-media@vger.kernel.org
TOMOYO SECURITY MODULE
M: Kentaro Takeda <takedakn@nttdata.co.jp>
M: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
-L: tomoyo-dev-en@lists.sourceforge.jp (subscribers-only, for developers in English)
-L: tomoyo-users-en@lists.sourceforge.jp (subscribers-only, for users in English)
-L: tomoyo-dev@lists.sourceforge.jp (subscribers-only, for developers in Japanese)
-L: tomoyo-users@lists.sourceforge.jp (subscribers-only, for users in Japanese)
-W: http://tomoyo.sourceforge.jp/
-T: quilt http://svn.sourceforge.jp/svnroot/tomoyo/trunk/2.5.x/tomoyo-lsm/patches/
+L: tomoyo-dev-en@lists.osdn.me (subscribers-only, for developers in English)
+L: tomoyo-users-en@lists.osdn.me (subscribers-only, for users in English)
+L: tomoyo-dev@lists.osdn.me (subscribers-only, for developers in Japanese)
+L: tomoyo-users@lists.osdn.me (subscribers-only, for users in Japanese)
+W: https://tomoyo.osdn.jp/
S: Maintained
F: security/tomoyo/
F: drivers/staging/unisys/
UNIVERSAL FLASH STORAGE HOST CONTROLLER DRIVER
-M: Vinayak Holikatti <vinholikatti@gmail.com>
+R: Alim Akhtar <alim.akhtar@samsung.com>
+R: Avri Altman <avri.altman@wdc.com>
+R: Pedro Sousa <pedrom.sousa@synopsys.com>
L: linux-scsi@vger.kernel.org
S: Supported
F: Documentation/scsi/ufs.txt
F: drivers/scsi/ufs/
UNIVERSAL FLASH STORAGE HOST CONTROLLER DRIVER DWC HOOKS
-M: Joao Pinto <jpinto@synopsys.com>
+M: Pedro Sousa <pedrom.sousa@synopsys.com>
L: linux-scsi@vger.kernel.org
S: Supported
F: drivers/scsi/ufs/*dwc*
USB OVER IP DRIVER
M: Valentina Manea <valentina.manea.m@gmail.com>
M: Shuah Khan <shuah@kernel.org>
+M: Shuah Khan <skhan@linuxfoundation.org>
L: linux-usb@vger.kernel.org
S: Maintained
F: Documentation/usb/usbip_protocol.txt
S: Maintained
F: drivers/gpio/gpio-wcove.c
+WHWAVE RTC DRIVER
+M: Dianlong Li <long17.cool@163.com>
+L: linux-rtc@vger.kernel.org
+S: Maintained
+F: drivers/rtc/rtc-sd3078.c
+
WIIMOTE HID DRIVER
M: David Herrmann <dh.herrmann@googlemail.com>
L: linux-input@vger.kernel.org
S: Maintained
F: drivers/media/rc/winbond-cir.c
+RCMM REMOTE CONTROLS DECODER
+M: Patrick Lerda <patrick9876@free.fr>
+S: Maintained
+F: drivers/media/rc/ir-rcmm-decoder.c
+
WINSYSTEMS EBC-C384 WATCHDOG DRIVER
M: William Breathitt Gray <vilhelm.gray@gmail.com>
L: linux-watchdog@vger.kernel.org
F: drivers/platform/x86/
F: drivers/platform/olpc/
+X86 PLATFORM DRIVERS - ARCH
+R: Darren Hart <dvhart@infradead.org>
+R: Andy Shevchenko <andy@infradead.org>
+L: platform-driver-x86@vger.kernel.org
+L: x86@kernel.org
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git x86/core
+S: Maintained
+F: arch/x86/platform
+
X86 VDSO
M: Andy Lutomirski <luto@kernel.org>
L: linux-kernel@vger.kernel.org
S: Maintained
F: drivers/media/tuners/tuner-xc2028.*
+XDP (eXpress Data Path)
+M: Alexei Starovoitov <ast@kernel.org>
+M: Daniel Borkmann <daniel@iogearbox.net>
+M: David S. Miller <davem@davemloft.net>
+M: Jakub Kicinski <jakub.kicinski@netronome.com>
+M: Jesper Dangaard Brouer <hawk@kernel.org>
+M: John Fastabend <john.fastabend@gmail.com>
+L: netdev@vger.kernel.org
+L: xdp-newbies@vger.kernel.org
+L: bpf@vger.kernel.org
+S: Supported
+F: net/core/xdp.c
+F: include/net/xdp.h
+F: kernel/bpf/devmap.c
+F: kernel/bpf/cpumap.c
+F: include/trace/events/xdp.h
+K: xdp
+N: xdp
+
XDP SOCKETS (AF_XDP)
M: Björn Töpel <bjorn.topel@intel.com>
M: Magnus Karlsson <magnus.karlsson@intel.com>
L: netdev@vger.kernel.org
+L: bpf@vger.kernel.org
S: Maintained
F: kernel/bpf/xskmap.c
F: net/xdp/
If unsure, say Y.
+ config FUJITSU_ERRATUM_010001
+ bool "Fujitsu-A64FX erratum E#010001: Undefined fault may occur wrongly"
+ default y
+ help
+ This option adds workaround for Fujitsu-A64FX erratum E#010001.
+ On some variants of the Fujitsu-A64FX cores ver(1.0, 1.1), memory
+ accesses may cause undefined fault (Data abort, DFSC=0b111111).
+ This fault occurs under a specific hardware condition when a
+ load/store instruction performs an address translation using:
+ case-1 TTBR0_EL1 with TCR_EL1.NFD0 == 1.
+ case-2 TTBR0_EL2 with TCR_EL2.NFD0 == 1.
+ case-3 TTBR1_EL1 with TCR_EL1.NFD1 == 1.
+ case-4 TTBR1_EL2 with TCR_EL2.NFD1 == 1.
+
+ The workaround is to ensure these bits are clear in TCR_ELx.
+ The workaround only affect the Fujitsu-A64FX.
+
+ If unsure, say Y.
+
endmenu
config NR_CPUS
int "Maximum number of CPUs (2-4096)"
range 2 4096
- # These have to remain sorted largest to smallest
- default "64"
+ default "256"
config HOTPLUG_CPU
bool "Support for hot-pluggable CPUs"
bool
select HAVE_MOD_ARCH_SPECIFIC
+ config ARM64_PSEUDO_NMI
+ bool "Support for NMI-like interrupts"
+ select CONFIG_ARM_GIC_V3
+ help
+ Adds support for mimicking Non-Maskable Interrupts through the use of
+ GIC interrupt priority. This support requires version 3 or later of
+ Arm GIC.
+
+ This high priority configuration for interrupts needs to be
+ explicitly enabled by setting the kernel parameter
+ "irqchip.gicv3_pseudo_nmi" to 1.
+
+ If unsure, say N
+
config RELOCATABLE
bool
help
def_bool y
depends on COMPAT && SYSVIPC
+config ARCH_ENABLE_HUGEPAGE_MIGRATION
+ def_bool y
+ depends on HUGETLB_PAGE && MIGRATION
+
menu "Power management options"
source "kernel/power/Kconfig"
help
This enables support for Marvell Berlin SoC Family
+config ARCH_BITMAIN
+ bool "Bitmain SoC Platforms"
+ help
+ This enables support for the Bitmain SoC Family.
+
config ARCH_BRCMSTB
bool "Broadcom Set-Top-Box SoCs"
select BRCMSTB_L2_IRQ
bool "Amlogic Platforms"
select PINCTRL
select PINCTRL_MESON
- select COMMON_CLK_AMLOGIC
select COMMON_CLK_GXBB
select COMMON_CLK_AXG
+ select COMMON_CLK_G12A
select MESON_IRQ_GPIO
help
- This enables support for the Amlogic S905 SoCs.
+ This enables support for the arm64 based Amlogic SoCs
+ such as the s905, S905X/D, S912, A113X/D or S905X/D2
config ARCH_MVEBU
bool "Marvell EBU SoC Family"
config ARCH_MXC
bool "ARMv8 based NXP i.MX SoC family"
select ARM64_ERRATUM_843419
- select ARM64_ERRATUM_845719
+ select ARM64_ERRATUM_845719 if COMPAT
+ select IMX_GPCV2
+ select IMX_GPCV2_PM_DOMAINS
+ select PM
+ select PM_GENERIC_DOMAINS
help
This enables support for the ARMv8 based SoCs in the
NXP i.MX family.
#include <linux/irqflags.h>
+ #include <asm/cpufeature.h>
+
#define DAIF_PROCCTX 0
#define DAIF_PROCCTX_NOIRQ PSR_I_BIT
+#define DAIF_ERRCTX (PSR_I_BIT | PSR_A_BIT)
/* mask/save/unmask/restore all exceptions, including interrupts. */
static inline void local_daif_mask(void)
{
unsigned long flags;
- flags = arch_local_save_flags();
+ flags = read_sysreg(daif);
+
+ if (system_uses_irq_prio_masking()) {
+ /* If IRQs are masked with PMR, reflect it in the flags */
+ if (read_sysreg_s(SYS_ICC_PMR_EL1) <= GIC_PRIO_IRQOFF)
+ flags |= PSR_I_BIT;
+ }
local_daif_mask();
return flags;
}
- static inline void local_daif_unmask(void)
- {
- trace_hardirqs_on();
- asm volatile(
- "msr daifclr, #0xf // local_daif_unmask"
- :
- :
- : "memory");
- }
-
static inline void local_daif_restore(unsigned long flags)
{
- if (!arch_irqs_disabled_flags(flags))
+ bool irq_disabled = flags & PSR_I_BIT;
+
+ if (!irq_disabled) {
trace_hardirqs_on();
- arch_local_irq_restore(flags);
+ if (system_uses_irq_prio_masking())
+ arch_local_irq_enable();
+ } else if (!(flags & PSR_A_BIT)) {
+ /*
+ * If interrupts are disabled but we can take
+ * asynchronous errors, we can take NMIs
+ */
+ if (system_uses_irq_prio_masking()) {
+ flags &= ~PSR_I_BIT;
+ /*
+ * There has been concern that the write to daif
+ * might be reordered before this write to PMR.
+ * From the ARM ARM DDI 0487D.a, section D1.7.1
+ * "Accessing PSTATE fields":
+ * Writes to the PSTATE fields have side-effects on
+ * various aspects of the PE operation. All of these
+ * side-effects are guaranteed:
+ * - Not to be visible to earlier instructions in
+ * the execution stream.
+ * - To be visible to later instructions in the
+ * execution stream
+ *
+ * Also, writes to PMR are self-synchronizing, so no
+ * interrupts with a lower priority than PMR is signaled
+ * to the PE after the write.
+ *
+ * So we don't need additional synchronization here.
+ */
+ arch_local_irq_disable();
+ }
+ }
+
+ write_sysreg(flags, daif);
- if (arch_irqs_disabled_flags(flags))
+ if (irq_disabled)
trace_hardirqs_off();
}
#include <linux/types.h>
#include <linux/kvm_types.h>
+ #include <asm/arch_gicv3.h>
#include <asm/cpufeature.h>
#include <asm/daifflags.h>
#include <asm/fpsimd.h>
#define KVM_REQ_SLEEP \
KVM_ARCH_REQ_FLAGS(0, KVM_REQUEST_WAIT | KVM_REQUEST_NO_WAKEUP)
#define KVM_REQ_IRQ_PENDING KVM_ARCH_REQ(1)
+#define KVM_REQ_VCPU_RESET KVM_ARCH_REQ(2)
DECLARE_STATIC_KEY_FALSE(userspace_irqchip_in_use);
typedef struct kvm_cpu_context kvm_cpu_context_t;
+struct vcpu_reset_state {
+ unsigned long pc;
+ unsigned long r0;
+ bool be;
+ bool reset;
+};
+
struct kvm_vcpu_arch {
struct kvm_cpu_context ctxt;
/* Virtual SError ESR to restore when HCR_EL2.VSE is set */
u64 vsesr_el2;
+ /* Additional reset state */
+ struct vcpu_reset_state reset_state;
+
/* True when deferrable sysregs are loaded on the physical CPU,
* see kvm_vcpu_load_sysregs and kvm_vcpu_put_sysregs. */
bool sysregs_loaded_on_cpu;
static inline void kvm_arm_vhe_guest_enter(void)
{
local_daif_mask();
+
+ /*
+ * Having IRQs masked via PMR when entering the guest means the GIC
+ * will not signal the CPU of interrupts of lower priority, and the
+ * only way to get out will be via guest exceptions.
+ * Naturally, we want to avoid this.
+ */
+ if (system_uses_irq_prio_masking()) {
+ gic_write_pmr(GIC_PRIO_IRQON);
+ dsb(sy);
+ }
}
static inline void kvm_arm_vhe_guest_exit(void)
{
+ /*
+ * local_daif_restore() takes care to properly restore PSTATE.DAIF
+ * and the GIC PMR if the host is using IRQ priorities.
+ */
local_daif_restore(DAIF_PROCCTX_NOIRQ);
/*
*/
#ifdef CONFIG_KASAN
#define KASAN_SHADOW_SIZE (UL(1) << (VA_BITS - KASAN_SHADOW_SCALE_SHIFT))
-#ifdef CONFIG_KASAN_EXTRA
-#define KASAN_THREAD_SHIFT 2
-#else
#define KASAN_THREAD_SHIFT 1
-#endif /* CONFIG_KASAN_EXTRA */
#else
#define KASAN_SHADOW_SIZE (0)
#define KASAN_THREAD_SHIFT 0
#define page_to_virt(page) ({ \
unsigned long __addr = \
((__page_to_voff(page)) | PAGE_OFFSET); \
- __addr = __tag_set(__addr, page_kasan_tag(page)); \
- ((void *)__addr); \
+ unsigned long __addr_tag = \
+ __tag_set(__addr, page_kasan_tag(page)); \
+ ((void *)__addr_tag); \
})
#define virt_to_page(vaddr) ((struct page *)((__virt_to_pgoff(vaddr)) | VMEMMAP_START))
#define virt_addr_valid(kaddr) \
(_virt_addr_is_linear(kaddr) && _virt_addr_valid(kaddr))
+/*
+ * Given that the GIC architecture permits ITS implementations that can only be
+ * configured with a LPI table address once, GICv3 systems with many CPUs may
+ * end up reserving a lot of different regions after a kexec for their LPI
+ * tables (one per CPU), as we are forced to reuse the same memory after kexec
+ * (and thus reserve it persistently with EFI beforehand)
+ */
+#if defined(CONFIG_EFI) && defined(CONFIG_ARM_GIC_V3_ITS)
+# define INIT_MEMBLOCK_RESERVED_REGIONS (INIT_MEMBLOCK_REGIONS + NR_CPUS + 1)
+#endif
+
#include <asm-generic/memory_model.h>
#endif
#include <asm/memory.h>
#include <asm/extable.h>
-#define get_ds() (KERNEL_DS)
#define get_fs() (current_thread_info()->addr_limit)
static inline void set_fs(mm_segment_t fs)
: "+r" (err), "=&r" (x) \
: "r" (addr), "i" (-EFAULT))
- #define __get_user_err(x, ptr, err) \
+ #define __raw_get_user(x, ptr, err) \
do { \
unsigned long __gu_val; \
__chk_user_ptr(ptr); \
(x) = (__force __typeof__(*(ptr)))__gu_val; \
} while (0)
- #define __get_user_check(x, ptr, err) \
- ({ \
+ #define __get_user_error(x, ptr, err) \
+ do { \
__typeof__(*(ptr)) __user *__p = (ptr); \
might_fault(); \
if (access_ok(__p, sizeof(*__p))) { \
__p = uaccess_mask_ptr(__p); \
- __get_user_err((x), __p, (err)); \
+ __raw_get_user((x), __p, (err)); \
} else { \
(x) = 0; (err) = -EFAULT; \
} \
- })
-
- #define __get_user_error(x, ptr, err) \
- ({ \
- __get_user_check((x), (ptr), (err)); \
- (void)0; \
- })
+ } while (0)
#define __get_user(x, ptr) \
({ \
int __gu_err = 0; \
- __get_user_check((x), (ptr), __gu_err); \
+ __get_user_error((x), (ptr), __gu_err); \
__gu_err; \
})
: "+r" (err) \
: "r" (x), "r" (addr), "i" (-EFAULT))
- #define __put_user_err(x, ptr, err) \
+ #define __raw_put_user(x, ptr, err) \
do { \
__typeof__(*(ptr)) __pu_val = (x); \
__chk_user_ptr(ptr); \
uaccess_disable_not_uao(); \
} while (0)
- #define __put_user_check(x, ptr, err) \
- ({ \
+ #define __put_user_error(x, ptr, err) \
+ do { \
__typeof__(*(ptr)) __user *__p = (ptr); \
might_fault(); \
if (access_ok(__p, sizeof(*__p))) { \
__p = uaccess_mask_ptr(__p); \
- __put_user_err((x), __p, (err)); \
+ __raw_put_user((x), __p, (err)); \
} else { \
(err) = -EFAULT; \
} \
- })
-
- #define __put_user_error(x, ptr, err) \
- ({ \
- __put_user_check((x), (ptr), (err)); \
- (void)0; \
- })
+ } while (0)
#define __put_user(x, ptr) \
({ \
int __pu_err = 0; \
- __put_user_check((x), (ptr), __pu_err); \
+ __put_user_error((x), (ptr), __pu_err); \
__pu_err; \
})
struct kprobe_ctlblk *kcb = get_kprobe_ctlblk();
int retval;
+ if (user_mode(regs))
+ return DBG_HOOK_ERROR;
+
/* return error if this is not our step */
retval = kprobe_ss_hit(kcb, instruction_pointer(regs));
int __kprobes
kprobe_breakpoint_handler(struct pt_regs *regs, unsigned int esr)
{
+ if (user_mode(regs))
+ return DBG_HOOK_ERROR;
+
kprobe_handler(regs);
return DBG_HOOK_HANDLED;
}
addr < (unsigned long)__entry_text_end) ||
(addr >= (unsigned long)__idmap_text_start &&
addr < (unsigned long)__idmap_text_end) ||
+ (addr >= (unsigned long)__hyp_text_start &&
+ addr < (unsigned long)__hyp_text_end) ||
!!search_exception_tables(addr))
return true;
if (!is_kernel_in_hyp_mode()) {
- if ((addr >= (unsigned long)__hyp_text_start &&
- addr < (unsigned long)__hyp_text_end) ||
- (addr >= (unsigned long)__hyp_idmap_text_start &&
+ if ((addr >= (unsigned long)__hyp_idmap_text_start &&
addr < (unsigned long)__hyp_idmap_text_end))
return true;
}
return user_regset_copyout(&pos, &count, &kbuf, &ubuf, &uregs, 0, -1);
}
+
+ #ifdef CONFIG_CHECKPOINT_RESTORE
+ static __uint128_t pac_key_to_user(const struct ptrauth_key *key)
+ {
+ return (__uint128_t)key->hi << 64 | key->lo;
+ }
+
+ static struct ptrauth_key pac_key_from_user(__uint128_t ukey)
+ {
+ struct ptrauth_key key = {
+ .lo = (unsigned long)ukey,
+ .hi = (unsigned long)(ukey >> 64),
+ };
+
+ return key;
+ }
+
+ static void pac_address_keys_to_user(struct user_pac_address_keys *ukeys,
+ const struct ptrauth_keys *keys)
+ {
+ ukeys->apiakey = pac_key_to_user(&keys->apia);
+ ukeys->apibkey = pac_key_to_user(&keys->apib);
+ ukeys->apdakey = pac_key_to_user(&keys->apda);
+ ukeys->apdbkey = pac_key_to_user(&keys->apdb);
+ }
+
+ static void pac_address_keys_from_user(struct ptrauth_keys *keys,
+ const struct user_pac_address_keys *ukeys)
+ {
+ keys->apia = pac_key_from_user(ukeys->apiakey);
+ keys->apib = pac_key_from_user(ukeys->apibkey);
+ keys->apda = pac_key_from_user(ukeys->apdakey);
+ keys->apdb = pac_key_from_user(ukeys->apdbkey);
+ }
+
+ static int pac_address_keys_get(struct task_struct *target,
+ const struct user_regset *regset,
+ unsigned int pos, unsigned int count,
+ void *kbuf, void __user *ubuf)
+ {
+ struct ptrauth_keys *keys = &target->thread.keys_user;
+ struct user_pac_address_keys user_keys;
+
+ if (!system_supports_address_auth())
+ return -EINVAL;
+
+ pac_address_keys_to_user(&user_keys, keys);
+
+ return user_regset_copyout(&pos, &count, &kbuf, &ubuf,
+ &user_keys, 0, -1);
+ }
+
+ static int pac_address_keys_set(struct task_struct *target,
+ const struct user_regset *regset,
+ unsigned int pos, unsigned int count,
+ const void *kbuf, const void __user *ubuf)
+ {
+ struct ptrauth_keys *keys = &target->thread.keys_user;
+ struct user_pac_address_keys user_keys;
+ int ret;
+
+ if (!system_supports_address_auth())
+ return -EINVAL;
+
+ pac_address_keys_to_user(&user_keys, keys);
+ ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf,
+ &user_keys, 0, -1);
+ if (ret)
+ return ret;
+ pac_address_keys_from_user(keys, &user_keys);
+
+ return 0;
+ }
+
+ static void pac_generic_keys_to_user(struct user_pac_generic_keys *ukeys,
+ const struct ptrauth_keys *keys)
+ {
+ ukeys->apgakey = pac_key_to_user(&keys->apga);
+ }
+
+ static void pac_generic_keys_from_user(struct ptrauth_keys *keys,
+ const struct user_pac_generic_keys *ukeys)
+ {
+ keys->apga = pac_key_from_user(ukeys->apgakey);
+ }
+
+ static int pac_generic_keys_get(struct task_struct *target,
+ const struct user_regset *regset,
+ unsigned int pos, unsigned int count,
+ void *kbuf, void __user *ubuf)
+ {
+ struct ptrauth_keys *keys = &target->thread.keys_user;
+ struct user_pac_generic_keys user_keys;
+
+ if (!system_supports_generic_auth())
+ return -EINVAL;
+
+ pac_generic_keys_to_user(&user_keys, keys);
+
+ return user_regset_copyout(&pos, &count, &kbuf, &ubuf,
+ &user_keys, 0, -1);
+ }
+
+ static int pac_generic_keys_set(struct task_struct *target,
+ const struct user_regset *regset,
+ unsigned int pos, unsigned int count,
+ const void *kbuf, const void __user *ubuf)
+ {
+ struct ptrauth_keys *keys = &target->thread.keys_user;
+ struct user_pac_generic_keys user_keys;
+ int ret;
+
+ if (!system_supports_generic_auth())
+ return -EINVAL;
+
+ pac_generic_keys_to_user(&user_keys, keys);
+ ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf,
+ &user_keys, 0, -1);
+ if (ret)
+ return ret;
+ pac_generic_keys_from_user(keys, &user_keys);
+
+ return 0;
+ }
+ #endif /* CONFIG_CHECKPOINT_RESTORE */
#endif /* CONFIG_ARM64_PTR_AUTH */
enum aarch64_regset {
#endif
#ifdef CONFIG_ARM64_PTR_AUTH
REGSET_PAC_MASK,
+ #ifdef CONFIG_CHECKPOINT_RESTORE
+ REGSET_PACA_KEYS,
+ REGSET_PACG_KEYS,
+ #endif
#endif
};
.get = pac_mask_get,
/* this cannot be set dynamically */
},
+ #ifdef CONFIG_CHECKPOINT_RESTORE
+ [REGSET_PACA_KEYS] = {
+ .core_note_type = NT_ARM_PACA_KEYS,
+ .n = sizeof(struct user_pac_address_keys) / sizeof(__uint128_t),
+ .size = sizeof(__uint128_t),
+ .align = sizeof(__uint128_t),
+ .get = pac_address_keys_get,
+ .set = pac_address_keys_set,
+ },
+ [REGSET_PACG_KEYS] = {
+ .core_note_type = NT_ARM_PACG_KEYS,
+ .n = sizeof(struct user_pac_generic_keys) / sizeof(__uint128_t),
+ .size = sizeof(__uint128_t),
+ .align = sizeof(__uint128_t),
+ .get = pac_generic_keys_get,
+ .set = pac_generic_keys_set,
+ },
+ #endif
#endif
};
}
/*
- * SPSR_ELx bits which are always architecturally RES0 per ARM DDI 0487C.a
- * We also take into account DIT (bit 24), which is not yet documented, and
- * treat PAN and UAO as RES0 bits, as they are meaningless at EL0, and may be
- * allocated an EL0 meaning in future.
+ * SPSR_ELx bits which are always architecturally RES0 per ARM DDI 0487D.a.
+ * We permit userspace to set SSBS (AArch64 bit 12, AArch32 bit 23) which is
+ * not described in ARM DDI 0487D.a.
+ * We treat PAN and UAO as RES0 bits, as they are meaningless at EL0, and may
+ * be allocated an EL0 meaning in future.
* Userspace cannot use these until they have an architectural meaning.
* Note that this follows the SPSR_ELx format, not the AArch32 PSR format.
* We also reserve IL for the kernel; SS is handled dynamically.
*/
#define SPSR_EL1_AARCH64_RES0_BITS \
- (GENMASK_ULL(63,32) | GENMASK_ULL(27, 25) | GENMASK_ULL(23, 22) | \
- GENMASK_ULL(20, 10) | GENMASK_ULL(5, 5))
+ (GENMASK_ULL(63, 32) | GENMASK_ULL(27, 25) | GENMASK_ULL(23, 22) | \
+ GENMASK_ULL(20, 13) | GENMASK_ULL(11, 10) | GENMASK_ULL(5, 5))
#define SPSR_EL1_AARCH32_RES0_BITS \
- (GENMASK_ULL(63,32) | GENMASK_ULL(23, 22) | GENMASK_ULL(20,20))
+ (GENMASK_ULL(63, 32) | GENMASK_ULL(22, 22) | GENMASK_ULL(20, 20))
static int valid_compat_regs(struct user_pt_regs *regs)
{
#include <asm/cacheflush.h>
#include <asm/tlbflush.h>
#include <asm/traps.h>
- #include <asm/memblock.h>
#include <asm/efi.h>
#include <asm/xen/hypervisor.h>
#include <asm/mmu_context.h>
arm64_memblock_init();
paging_init();
- efi_apply_persistent_mem_reservations();
acpi_table_upgrade();
smp_init_cpus();
smp_build_mpidr_hash();
+ /* Init percpu seeds for random tags after cpus are set up. */
+ kasan_init_tags();
+
#ifdef CONFIG_ARM64_SW_TTBR0_PAN
/*
* Make sure init_thread_info.ttbr0 always generates translation
#include <kvm/arm_psci.h>
+ #include <asm/arch_gicv3.h>
#include <asm/cpufeature.h>
+#include <asm/kprobes.h>
#include <asm/kvm_asm.h>
#include <asm/kvm_emulate.h>
#include <asm/kvm_host.h>
write_sysreg(kvm_get_hyp_vector(), vbar_el1);
}
+NOKPROBE_SYMBOL(activate_traps_vhe);
static void __hyp_text __activate_traps_nvhe(struct kvm_vcpu *vcpu)
{
write_sysreg(CPACR_EL1_DEFAULT, cpacr_el1);
write_sysreg(vectors, vbar_el1);
}
+NOKPROBE_SYMBOL(deactivate_traps_vhe);
static void __hyp_text __deactivate_traps_nvhe(void)
{
return exit_code;
}
+NOKPROBE_SYMBOL(kvm_vcpu_run_vhe);
/* Switch to the guest for legacy non-VHE systems */
int __hyp_text __kvm_vcpu_run_nvhe(struct kvm_vcpu *vcpu)
struct kvm_cpu_context *guest_ctxt;
u64 exit_code;
+ /*
+ * Having IRQs masked via PMR when entering the guest means the GIC
+ * will not signal the CPU of interrupts of lower priority, and the
+ * only way to get out will be via guest exceptions.
+ * Naturally, we want to avoid this.
+ */
+ if (system_uses_irq_prio_masking()) {
+ gic_write_pmr(GIC_PRIO_IRQON);
+ dsb(sy);
+ }
+
vcpu = kern_hyp_va(vcpu);
host_ctxt = kern_hyp_va(vcpu->arch.host_cpu_context);
*/
__debug_switch_to_host(vcpu);
+ /* Returning to host will clear PSR.I, remask PMR if needed */
+ if (system_uses_irq_prio_masking())
+ gic_write_pmr(GIC_PRIO_IRQOFF);
+
return exit_code;
}
read_sysreg_el2(esr), read_sysreg_el2(far),
read_sysreg(hpfar_el2), par, vcpu);
}
+NOKPROBE_SYMBOL(__hyp_call_panic_vhe);
void __hyp_text __noreturn hyp_panic(struct kvm_cpu_context *host_ctxt)
{
}
-static void walk_pte(struct pg_state *st, pmd_t *pmdp, unsigned long start)
+static void walk_pte(struct pg_state *st, pmd_t *pmdp, unsigned long start,
+ unsigned long end)
{
- pte_t *ptep = pte_offset_kernel(pmdp, 0UL);
- unsigned long addr;
- unsigned i;
+ unsigned long addr = start;
+ pte_t *ptep = pte_offset_kernel(pmdp, start);
- for (i = 0; i < PTRS_PER_PTE; i++, ptep++) {
- addr = start + i * PAGE_SIZE;
+ do {
note_page(st, addr, 4, READ_ONCE(pte_val(*ptep)));
- }
+ } while (ptep++, addr += PAGE_SIZE, addr != end);
}
-static void walk_pmd(struct pg_state *st, pud_t *pudp, unsigned long start)
+static void walk_pmd(struct pg_state *st, pud_t *pudp, unsigned long start,
+ unsigned long end)
{
- pmd_t *pmdp = pmd_offset(pudp, 0UL);
- unsigned long addr;
- unsigned i;
+ unsigned long next, addr = start;
+ pmd_t *pmdp = pmd_offset(pudp, start);
- for (i = 0; i < PTRS_PER_PMD; i++, pmdp++) {
+ do {
pmd_t pmd = READ_ONCE(*pmdp);
+ next = pmd_addr_end(addr, end);
- addr = start + i * PMD_SIZE;
if (pmd_none(pmd) || pmd_sect(pmd)) {
note_page(st, addr, 3, pmd_val(pmd));
} else {
BUG_ON(pmd_bad(pmd));
- walk_pte(st, pmdp, addr);
+ walk_pte(st, pmdp, addr, next);
}
- }
+ } while (pmdp++, addr = next, addr != end);
}
-static void walk_pud(struct pg_state *st, pgd_t *pgdp, unsigned long start)
+static void walk_pud(struct pg_state *st, pgd_t *pgdp, unsigned long start,
+ unsigned long end)
{
- pud_t *pudp = pud_offset(pgdp, 0UL);
- unsigned long addr;
- unsigned i;
+ unsigned long next, addr = start;
+ pud_t *pudp = pud_offset(pgdp, start);
- for (i = 0; i < PTRS_PER_PUD; i++, pudp++) {
+ do {
pud_t pud = READ_ONCE(*pudp);
+ next = pud_addr_end(addr, end);
- addr = start + i * PUD_SIZE;
if (pud_none(pud) || pud_sect(pud)) {
note_page(st, addr, 2, pud_val(pud));
} else {
BUG_ON(pud_bad(pud));
- walk_pmd(st, pudp, addr);
+ walk_pmd(st, pudp, addr, next);
}
- }
+ } while (pudp++, addr = next, addr != end);
}
static void walk_pgd(struct pg_state *st, struct mm_struct *mm,
unsigned long start)
{
- pgd_t *pgdp = pgd_offset(mm, 0UL);
- unsigned i;
- unsigned long addr;
+ unsigned long end = (start < TASK_SIZE_64) ? TASK_SIZE_64 : 0;
+ unsigned long next, addr = start;
+ pgd_t *pgdp = pgd_offset(mm, start);
- for (i = 0; i < PTRS_PER_PGD; i++, pgdp++) {
+ do {
pgd_t pgd = READ_ONCE(*pgdp);
+ next = pgd_addr_end(addr, end);
- addr = start + i * PGDIR_SIZE;
if (pgd_none(pgd)) {
note_page(st, addr, 1, pgd_val(pgd));
} else {
BUG_ON(pgd_bad(pgd));
- walk_pud(st, pgdp, addr);
+ walk_pud(st, pgdp, addr, next);
}
- }
+ } while (pgdp++, addr = next, addr != end);
}
void ptdump_walk_pgd(struct seq_file *m, struct ptdump_info *info)
static int ptdump_init(void)
{
ptdump_initialize();
- return ptdump_debugfs_register(&kernel_ptdump_info,
- "kernel_page_tables");
+ ptdump_debugfs_register(&kernel_ptdump_info, "kernel_page_tables");
+ return 0;
}
device_initcall(ptdump_init);
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
+#include <linux/acpi.h>
#include <linux/extable.h>
#include <linux/signal.h>
#include <linux/mm.h>
#include <linux/preempt.h>
#include <linux/hugetlb.h>
+#include <asm/acpi.h>
#include <asm/bug.h>
#include <asm/cmpxchg.h>
#include <asm/cpufeature.h>
#include <asm/tlbflush.h>
#include <asm/traps.h>
-#include <acpi/ghes.h>
-
struct fault_info {
int (*fn)(unsigned long addr, unsigned int esr,
struct pt_regs *regs);
inf = esr_to_fault_info(esr);
/*
- * Synchronous aborts may interrupt code which had interrupts masked.
- * Before calling out into the wider kernel tell the interested
- * subsystems.
+ * Return value ignored as we rely on signal merging.
+ * Future patches will make this more robust.
*/
- if (IS_ENABLED(CONFIG_ACPI_APEI_SEA)) {
- if (interrupts_enabled(regs))
- nmi_enter();
-
- ghes_notify_sea();
-
- if (interrupts_enabled(regs))
- nmi_exit();
- }
+ apei_claim_sea(regs);
if (esr & ESR_ELx_FnV)
siaddr = NULL;
{ do_bad, SIGKILL, SI_KERNEL, "unknown 63" },
};
-int handle_guest_sea(phys_addr_t addr, unsigned int esr)
-{
- return ghes_notify_sea();
-}
-
asmlinkage void __exception do_mem_abort(unsigned long addr, unsigned int esr,
struct pt_regs *regs)
{
debug_fault_info[nr].name = name;
}
- asmlinkage int __exception do_debug_exception(unsigned long addr,
+ asmlinkage int __exception do_debug_exception(unsigned long addr_if_watchpoint,
unsigned int esr,
struct pt_regs *regs)
{
const struct fault_info *inf = esr_to_debug_fault_info(esr);
+ unsigned long pc = instruction_pointer(regs);
int rv;
/*
if (interrupts_enabled(regs))
trace_hardirqs_off();
- if (user_mode(regs) && !is_ttbr0_addr(instruction_pointer(regs)))
+ if (user_mode(regs) && !is_ttbr0_addr(pc))
arm64_apply_bp_hardening();
- if (!inf->fn(addr, esr, regs)) {
+ if (!inf->fn(addr_if_watchpoint, esr, regs)) {
rv = 1;
} else {
arm64_notify_die(inf->name, regs,
- inf->sig, inf->code, (void __user *)addr, esr);
+ inf->sig, inf->code, (void __user *)pc, esr);
rv = 0;
}
crashk_res.start = crash_base;
crashk_res.end = crash_base + crash_size - 1;
}
-
-static void __init kexec_reserve_crashkres_pages(void)
-{
-#ifdef CONFIG_HIBERNATION
- phys_addr_t addr;
- struct page *page;
-
- if (!crashk_res.end)
- return;
-
- /*
- * To reduce the size of hibernation image, all the pages are
- * marked as Reserved initially.
- */
- for (addr = crashk_res.start; addr < (crashk_res.end + 1);
- addr += PAGE_SIZE) {
- page = phys_to_page(addr);
- SetPageReserved(page);
- }
-#endif
-}
#else
static void __init reserve_crashkernel(void)
{
}
-
-static void __init kexec_reserve_crashkres_pages(void)
-{
-}
#endif /* CONFIG_KEXEC_CORE */
#ifdef CONFIG_CRASH_DUMP
}
EXPORT_SYMBOL(pfn_valid);
- #ifndef CONFIG_SPARSEMEM
- static void __init arm64_memory_present(void)
- {
- }
- #else
- static void __init arm64_memory_present(void)
- {
- struct memblock_region *reg;
-
- for_each_memblock(memory, reg) {
- int nid = memblock_get_region_node(reg);
-
- memory_present(nid, memblock_region_memory_base_pfn(reg),
- memblock_region_memory_end_pfn(reg));
- }
- }
- #endif
-
static phys_addr_t memory_limit = PHYS_ADDR_MAX;
/*
* Sparsemem tries to allocate bootmem in memory_present(), so must be
* done after the fixed reservations.
*/
- arm64_memory_present();
+ memblocks_present();
sparse_init();
zone_sizes_init(min, max);
/* this will put all unused low memory onto the freelists */
memblock_free_all();
- kexec_reserve_crashkres_pages();
-
mem_init_print_info(NULL);
/*
+// SPDX-License-Identifier: GPL-2.0
/*
* Extensible Firmware Interface
*
* Based on Extensible Firmware Interface Specification version 2.4
*
* Copyright (C) 2013, 2014 Linaro Ltd.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
*/
#include <linux/dmi.h>
static struct ptdump_info efi_ptdump_info = {
.mm = &efi_mm,
.markers = (struct addr_marker[]){
- { 0, "UEFI runtime start" },
- { DEFAULT_MAP_WINDOW_64, "UEFI runtime end" }
+ { 0, "UEFI runtime start" },
+ { DEFAULT_MAP_WINDOW_64, "UEFI runtime end" },
+ { -1, NULL }
},
.base_addr = 0,
};
static int __init ptdump_init(void)
{
- if (!efi_enabled(EFI_RUNTIME_SERVICES))
- return 0;
+ if (efi_enabled(EFI_RUNTIME_SERVICES))
+ ptdump_debugfs_register(&efi_ptdump_info, "efi_page_tables");
- return ptdump_debugfs_register(&efi_ptdump_info, "efi_page_tables");
+ return 0;
}
device_initcall(ptdump_init);
pr_err("Failed to queue work to efi_rts_wq.\n"); \
\
exit: \
- efi_rts_work.efi_rts_id = NONE; \
+ efi_rts_work.efi_rts_id = EFI_NONE; \
efi_rts_work.status; \
})
+ #ifndef arch_efi_save_flags
+ #define arch_efi_save_flags(state_flags) local_save_flags(state_flags)
+ #define arch_efi_restore_flags(state_flags) local_irq_restore(state_flags)
+ #endif
+
+ unsigned long efi_call_virt_save_flags(void)
+ {
+ unsigned long flags;
+
+ arch_efi_save_flags(flags);
+ return flags;
+ }
+
void efi_call_virt_check_flags(unsigned long flags, const char *call)
{
unsigned long cur_flags, mismatch;
- local_save_flags(cur_flags);
+ cur_flags = efi_call_virt_save_flags();
mismatch = flags ^ cur_flags;
if (!WARN_ON_ONCE(mismatch & ARCH_EFI_IRQ_FLAGS_MASK))
add_taint(TAINT_FIRMWARE_WORKAROUND, LOCKDEP_NOW_UNRELIABLE);
pr_err_ratelimited(FW_BUG "IRQ flags corrupted (0x%08lx=>0x%08lx) by EFI %s\n",
flags, cur_flags, call);
- local_irq_restore(flags);
+ arch_efi_restore_flags(flags);
}
/*
*/
static DEFINE_SEMAPHORE(efi_runtime_lock);
+/*
+ * Expose the EFI runtime lock to the UV platform
+ */
+#ifdef CONFIG_X86_UV
+extern struct semaphore __efi_uv_runtime_lock __alias(efi_runtime_lock);
+#endif
+
/*
* Calls the appropriate efi_runtime_service() with the appropriate
* arguments.
arg5 = efi_rts_work.arg5;
switch (efi_rts_work.efi_rts_id) {
- case GET_TIME:
+ case EFI_GET_TIME:
status = efi_call_virt(get_time, (efi_time_t *)arg1,
(efi_time_cap_t *)arg2);
break;
- case SET_TIME:
+ case EFI_SET_TIME:
status = efi_call_virt(set_time, (efi_time_t *)arg1);
break;
- case GET_WAKEUP_TIME:
+ case EFI_GET_WAKEUP_TIME:
status = efi_call_virt(get_wakeup_time, (efi_bool_t *)arg1,
(efi_bool_t *)arg2, (efi_time_t *)arg3);
break;
- case SET_WAKEUP_TIME:
+ case EFI_SET_WAKEUP_TIME:
status = efi_call_virt(set_wakeup_time, *(efi_bool_t *)arg1,
(efi_time_t *)arg2);
break;
- case GET_VARIABLE:
+ case EFI_GET_VARIABLE:
status = efi_call_virt(get_variable, (efi_char16_t *)arg1,
(efi_guid_t *)arg2, (u32 *)arg3,
(unsigned long *)arg4, (void *)arg5);
break;
- case GET_NEXT_VARIABLE:
+ case EFI_GET_NEXT_VARIABLE:
status = efi_call_virt(get_next_variable, (unsigned long *)arg1,
(efi_char16_t *)arg2,
(efi_guid_t *)arg3);
break;
- case SET_VARIABLE:
+ case EFI_SET_VARIABLE:
status = efi_call_virt(set_variable, (efi_char16_t *)arg1,
(efi_guid_t *)arg2, *(u32 *)arg3,
*(unsigned long *)arg4, (void *)arg5);
break;
- case QUERY_VARIABLE_INFO:
+ case EFI_QUERY_VARIABLE_INFO:
status = efi_call_virt(query_variable_info, *(u32 *)arg1,
(u64 *)arg2, (u64 *)arg3, (u64 *)arg4);
break;
- case GET_NEXT_HIGH_MONO_COUNT:
+ case EFI_GET_NEXT_HIGH_MONO_COUNT:
status = efi_call_virt(get_next_high_mono_count, (u32 *)arg1);
break;
- case UPDATE_CAPSULE:
+ case EFI_UPDATE_CAPSULE:
status = efi_call_virt(update_capsule,
(efi_capsule_header_t **)arg1,
*(unsigned long *)arg2,
*(unsigned long *)arg3);
break;
- case QUERY_CAPSULE_CAPS:
+ case EFI_QUERY_CAPSULE_CAPS:
status = efi_call_virt(query_capsule_caps,
(efi_capsule_header_t **)arg1,
*(unsigned long *)arg2, (u64 *)arg3,
if (down_interruptible(&efi_runtime_lock))
return EFI_ABORTED;
- status = efi_queue_work(GET_TIME, tm, tc, NULL, NULL, NULL);
+ status = efi_queue_work(EFI_GET_TIME, tm, tc, NULL, NULL, NULL);
up(&efi_runtime_lock);
return status;
}
if (down_interruptible(&efi_runtime_lock))
return EFI_ABORTED;
- status = efi_queue_work(SET_TIME, tm, NULL, NULL, NULL, NULL);
+ status = efi_queue_work(EFI_SET_TIME, tm, NULL, NULL, NULL, NULL);
up(&efi_runtime_lock);
return status;
}
if (down_interruptible(&efi_runtime_lock))
return EFI_ABORTED;
- status = efi_queue_work(GET_WAKEUP_TIME, enabled, pending, tm, NULL,
+ status = efi_queue_work(EFI_GET_WAKEUP_TIME, enabled, pending, tm, NULL,
NULL);
up(&efi_runtime_lock);
return status;
if (down_interruptible(&efi_runtime_lock))
return EFI_ABORTED;
- status = efi_queue_work(SET_WAKEUP_TIME, &enabled, tm, NULL, NULL,
+ status = efi_queue_work(EFI_SET_WAKEUP_TIME, &enabled, tm, NULL, NULL,
NULL);
up(&efi_runtime_lock);
return status;
if (down_interruptible(&efi_runtime_lock))
return EFI_ABORTED;
- status = efi_queue_work(GET_VARIABLE, name, vendor, attr, data_size,
+ status = efi_queue_work(EFI_GET_VARIABLE, name, vendor, attr, data_size,
data);
up(&efi_runtime_lock);
return status;
if (down_interruptible(&efi_runtime_lock))
return EFI_ABORTED;
- status = efi_queue_work(GET_NEXT_VARIABLE, name_size, name, vendor,
+ status = efi_queue_work(EFI_GET_NEXT_VARIABLE, name_size, name, vendor,
NULL, NULL);
up(&efi_runtime_lock);
return status;
if (down_interruptible(&efi_runtime_lock))
return EFI_ABORTED;
- status = efi_queue_work(SET_VARIABLE, name, vendor, &attr, &data_size,
+ status = efi_queue_work(EFI_SET_VARIABLE, name, vendor, &attr, &data_size,
data);
up(&efi_runtime_lock);
return status;
if (down_interruptible(&efi_runtime_lock))
return EFI_ABORTED;
- status = efi_queue_work(QUERY_VARIABLE_INFO, &attr, storage_space,
+ status = efi_queue_work(EFI_QUERY_VARIABLE_INFO, &attr, storage_space,
remaining_space, max_variable_size, NULL);
up(&efi_runtime_lock);
return status;
if (down_interruptible(&efi_runtime_lock))
return EFI_ABORTED;
- status = efi_queue_work(GET_NEXT_HIGH_MONO_COUNT, count, NULL, NULL,
+ status = efi_queue_work(EFI_GET_NEXT_HIGH_MONO_COUNT, count, NULL, NULL,
NULL, NULL);
up(&efi_runtime_lock);
return status;
"could not get exclusive access to the firmware\n");
return;
}
- efi_rts_work.efi_rts_id = RESET_SYSTEM;
+ efi_rts_work.efi_rts_id = EFI_RESET_SYSTEM;
__efi_call_virt(reset_system, reset_type, status, data_size, data);
up(&efi_runtime_lock);
}
if (down_interruptible(&efi_runtime_lock))
return EFI_ABORTED;
- status = efi_queue_work(UPDATE_CAPSULE, capsules, &count, &sg_list,
+ status = efi_queue_work(EFI_UPDATE_CAPSULE, capsules, &count, &sg_list,
NULL, NULL);
up(&efi_runtime_lock);
return status;
if (down_interruptible(&efi_runtime_lock))
return EFI_ABORTED;
- status = efi_queue_work(QUERY_CAPSULE_CAPS, capsules, &count,
+ status = efi_queue_work(EFI_QUERY_CAPSULE_CAPS, capsules, &count,
max_size, reset_type, NULL);
up(&efi_runtime_lock);
return status;
if (is_sampling_event(event) || event->attach_state & PERF_ATTACH_TASK)
return -EINVAL;
- /* SOC counters do not have usr/os/guest/host bits */
- if (event->attr.exclude_user || event->attr.exclude_kernel ||
- event->attr.exclude_host || event->attr.exclude_guest)
- return -EINVAL;
-
if (event->cpu < 0)
return -EINVAL;
/*
static void xgene_perf_stop(struct perf_event *event, int flags)
{
struct hw_perf_event *hw = &event->hw;
- u64 config;
if (hw->state & PERF_HES_UPTODATE)
return;
if (hw->state & PERF_HES_UPTODATE)
return;
- config = hw->config;
xgene_perf_read(event);
hw->state |= PERF_HES_UPTODATE;
}
.start = xgene_perf_start,
.stop = xgene_perf_stop,
.read = xgene_perf_read,
+ .capabilities = PERF_PMU_CAP_NO_EXCLUDE,
};
/* Hardware counter init */
typedef u64 efi_physical_addr_t;
typedef void *efi_handle_t;
-typedef guid_t efi_guid_t;
+/*
+ * The UEFI spec and EDK2 reference implementation both define EFI_GUID as
+ * struct { u32 a; u16; b; u16 c; u8 d[8]; }; and so the implied alignment
+ * is 32 bits not 8 bits like our guid_t. In some cases (i.e., on 32-bit ARM),
+ * this means that firmware services invoked by the kernel may assume that
+ * efi_guid_t* arguments are 32-bit aligned, and use memory accessors that
+ * do not tolerate misalignment. So let's set the minimum alignment to 32 bits.
+ *
+ * Note that the UEFI spec as well as some comments in the EDK2 code base
+ * suggest that EFI_GUID should be 64-bit aligned, but this appears to be
+ * a mistake, given that no code seems to exist that actually enforces that
+ * or relies on it.
+ */
+typedef guid_t efi_guid_t __aligned(__alignof__(u32));
#define EFI_GUID(a,b,c,d0,d1,d2,d3,d4,d5,d6,d7) \
GUID_INIT(a, b, c, d0, d1, d2, d3, d4, d5, d6, d7)
extern void efi_reboot(enum reboot_mode reboot_mode, const char *__unused);
extern bool efi_is_table_address(unsigned long phys_addr);
-
-extern int efi_apply_persistent_mem_reservations(void);
#else
static inline bool efi_enabled(int feature)
{
{
return false;
}
-
-static inline int efi_apply_persistent_mem_reservations(void)
-{
- return 0;
-}
#endif
extern int efi_status_to_err(efi_status_t status);
bool efi_runtime_disabled(void);
extern void efi_call_virt_check_flags(unsigned long flags, const char *call);
+ extern unsigned long efi_call_virt_save_flags(void);
enum efi_secureboot_mode {
efi_secureboot_mode_unset,
\
arch_efi_call_virt_setup(); \
\
- local_save_flags(__flags); \
+ __flags = efi_call_virt_save_flags(); \
__s = arch_efi_call_virt(p, f, args); \
efi_call_virt_check_flags(__flags, __stringify(f)); \
\
\
arch_efi_call_virt_setup(); \
\
- local_save_flags(__flags); \
+ __flags = efi_call_virt_save_flags(); \
arch_efi_call_virt(p, f, args); \
efi_call_virt_check_flags(__flags, __stringify(f)); \
\
* fault happened while executing an efi runtime service.
*/
enum efi_rts_ids {
- NONE,
- GET_TIME,
- SET_TIME,
- GET_WAKEUP_TIME,
- SET_WAKEUP_TIME,
- GET_VARIABLE,
- GET_NEXT_VARIABLE,
- SET_VARIABLE,
- QUERY_VARIABLE_INFO,
- GET_NEXT_HIGH_MONO_COUNT,
- RESET_SYSTEM,
- UPDATE_CAPSULE,
- QUERY_CAPSULE_CAPS,
+ EFI_NONE,
+ EFI_GET_TIME,
+ EFI_SET_TIME,
+ EFI_GET_WAKEUP_TIME,
+ EFI_SET_WAKEUP_TIME,
+ EFI_GET_VARIABLE,
+ EFI_GET_NEXT_VARIABLE,
+ EFI_SET_VARIABLE,
+ EFI_QUERY_VARIABLE_INFO,
+ EFI_GET_NEXT_HIGH_MONO_COUNT,
+ EFI_RESET_SYSTEM,
+ EFI_UPDATE_CAPSULE,
+ EFI_QUERY_CAPSULE_CAPS,
};
/*
projects / linux-2.6-block.git / commitdiff