From 5b7c4cabbb65f5c469464da6c5f614cbd7f730f2 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Tue, 21 Feb 2023 18:24:12 -0800 Subject: Merge tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next Pull networking updates from Jakub Kicinski: "Core: - Add dedicated kmem_cache for typical/small skb->head, avoid having to access struct page at kfree time, and improve memory use. - Introduce sysctl to set default RPS configuration for new netdevs. - Define Netlink protocol specification format which can be used to describe messages used by each family and auto-generate parsers. Add tools for generating kernel data structures and uAPI headers. - Expose all net/core sysctls inside netns. - Remove 4s sleep in netpoll if carrier is instantly detected on boot. - Add configurable limit of MDB entries per port, and port-vlan. - Continue populating drop reasons throughout the stack. - Retire a handful of legacy Qdiscs and classifiers. Protocols: - Support IPv4 big TCP (TSO frames larger than 64kB). - Add IP_LOCAL_PORT_RANGE socket option, to control local port range on socket by socket basis. - Track and report in procfs number of MPTCP sockets used. - Support mixing IPv4 and IPv6 flows in the in-kernel MPTCP path manager. - IPv6: don't check net.ipv6.route.max_size and rely on garbage collection to free memory (similarly to IPv4). - Support Penultimate Segment Pop (PSP) flavor in SRv6 (RFC8986). - ICMP: add per-rate limit counters. - Add support for user scanning requests in ieee802154. - Remove static WEP support. - Support minimal Wi-Fi 7 Extremely High Throughput (EHT) rate reporting. - WiFi 7 EHT channel puncturing support (client & AP). BPF: - Add a rbtree data structure following the "next-gen data structure" precedent set by recently added linked list, that is, by using kfunc + kptr instead of adding a new BPF map type. - Expose XDP hints via kfuncs with initial support for RX hash and timestamp metadata. - Add BPF_F_NO_TUNNEL_KEY extension to bpf_skb_set_tunnel_key to better support decap on GRE tunnel devices not operating in collect metadata. - Improve x86 JIT's codegen for PROBE_MEM runtime error checks. - Remove the need for trace_printk_lock for bpf_trace_printk and bpf_trace_vprintk helpers. - Extend libbpf's bpf_tracing.h support for tracing arguments of kprobes/uprobes and syscall as a special case. - Significantly reduce the search time for module symbols by livepatch and BPF. - Enable cpumasks to be used as kptrs, which is useful for tracing programs tracking which tasks end up running on which CPUs in different time intervals. - Add support for BPF trampoline on s390x and riscv64. - Add capability to export the XDP features supported by the NIC. - Add __bpf_kfunc tag for marking kernel functions as kfuncs. - Add cgroup.memory=nobpf kernel parameter option to disable BPF memory accounting for container environments. Netfilter: - Remove the CLUSTERIP target. It has been marked as obsolete for years, and we still have WARN splats wrt races of the out-of-band /proc interface installed by this target. - Add 'destroy' commands to nf_tables. They are identical to the existing 'delete' commands, but do not return an error if the referenced object (set, chain, rule...) did not exist. Driver API: - Improve cpumask_local_spread() locality to help NICs set the right IRQ affinity on AMD platforms. - Separate C22 and C45 MDIO bus transactions more clearly. - Introduce new DCB table to control DSCP rewrite on egress. - Support configuration of Physical Layer Collision Avoidance (PLCA) Reconciliation Sublayer (RS) (802.3cg-2019). Modern version of shared medium Ethernet. - Support for MAC Merge layer (IEEE 802.3-2018 clause 99). Allowing preemption of low priority frames by high priority frames. - Add support for controlling MACSec offload using netlink SET. - Rework devlink instance refcounts to allow registration and de-registration under the instance lock. Split the code into multiple files, drop some of the unnecessarily granular locks and factor out common parts of netlink operation handling. - Add TX frame aggregation parameters (for USB drivers). - Add a new attr TCA_EXT_WARN_MSG to report TC (offload) warning messages with notifications for debug. - Allow offloading of UDP NEW connections via act_ct. - Add support for per action HW stats in TC. - Support hardware miss to TC action (continue processing in SW from a specific point in the action chain). - Warn if old Wireless Extension user space interface is used with modern cfg80211/mac80211 drivers. Do not support Wireless Extensions for Wi-Fi 7 devices at all. Everyone should switch to using nl80211 interface instead. - Improve the CAN bit timing configuration. Use extack to return error messages directly to user space, update the SJW handling, including the definition of a new default value that will benefit CAN-FD controllers, by increasing their oscillator tolerance. New hardware / drivers: - Ethernet: - nVidia BlueField-3 support (control traffic driver) - Ethernet support for imx93 SoCs - Motorcomm yt8531 gigabit Ethernet PHY - onsemi NCN26000 10BASE-T1S PHY (with support for PLCA) - Microchip LAN8841 PHY (incl. cable diagnostics and PTP) - Amlogic gxl MDIO mux - WiFi: - RealTek RTL8188EU (rtl8xxxu) - Qualcomm Wi-Fi 7 devices (ath12k) - CAN: - Renesas R-Car V4H Drivers: - Bluetooth: - Set Per Platform Antenna Gain (PPAG) for Intel controllers. - Ethernet NICs: - Intel (1G, igc): - support TSN / Qbv / packet scheduling features of i226 model - Intel (100G, ice): - use GNSS subsystem instead of TTY - multi-buffer XDP support - extend support for GPIO pins to E823 devices - nVidia/Mellanox: - update the shared buffer configuration on PFC commands - implement PTP adjphase function for HW offset control - TC support for Geneve and GRE with VF tunnel offload - more efficient crypto key management method - multi-port eswitch support - Netronome/Corigine: - add DCB IEEE support - support IPsec offloading for NFP3800 - Freescale/NXP (enetc): - support XDP_REDIRECT for XDP non-linear buffers - improve reconfig, avoid link flap and waiting for idle - support MAC Merge layer - Other NICs: - sfc/ef100: add basic devlink support for ef100 - ionic: rx_push mode operation (writing descriptors via MMIO) - bnxt: use the auxiliary bus abstraction for RDMA - r8169: disable ASPM and reset bus in case of tx timeout - cpsw: support QSGMII mode for J721e CPSW9G - cpts: support pulse-per-second output - ngbe: add an mdio bus driver - usbnet: optimize usbnet_bh() by avoiding unnecessary queuing - r8152: handle devices with FW with NCM support - amd-xgbe: support 10Mbps, 2.5GbE speeds and rx-adaptation - virtio-net: support multi buffer XDP - virtio/vsock: replace virtio_vsock_pkt with sk_buff - tsnep: XDP support - Ethernet high-speed switches: - nVidia/Mellanox (mlxsw): - add support for latency TLV (in FW control messages) - Microchip (sparx5): - separate explicit and implicit traffic forwarding rules, make the implicit rules always active - add support for egress DSCP rewrite - IS0 VCAP support (Ingress Classification) - IS2 VCAP filters (protos, L3 addrs, L4 ports, flags, ToS etc.) - ES2 VCAP support (Egress Access Control) - support for Per-Stream Filtering and Policing (802.1Q, 8.6.5.1) - Ethernet embedded switches: - Marvell (mv88e6xxx): - add MAB (port auth) offload support - enable PTP receive for mv88e6390 - NXP (ocelot): - support MAC Merge layer - support for the the vsc7512 internal copper phys - Microchip: - lan9303: convert to PHYLINK - lan966x: support TC flower filter statistics - lan937x: PTP support for KSZ9563/KSZ8563 and LAN937x - lan937x: support Credit Based Shaper configuration - ksz9477: support Energy Efficient Ethernet - other: - qca8k: convert to regmap read/write API, use bulk operations - rswitch: Improve TX timestamp accuracy - Intel WiFi (iwlwifi): - EHT (Wi-Fi 7) rate reporting - STEP equalizer support: transfer some STEP (connection to radio on platforms with integrated wifi) related parameters from the BIOS to the firmware. - Qualcomm 802.11ax WiFi (ath11k): - IPQ5018 support - Fine Timing Measurement (FTM) responder role support - channel 177 support - MediaTek WiFi (mt76): - per-PHY LED support - mt7996: EHT (Wi-Fi 7) support - Wireless Ethernet Dispatch (WED) reset support - switch to using page pool allocator - RealTek WiFi (rtw89): - support new version of Bluetooth co-existance - Mobile: - rmnet: support TX aggregation" * tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1872 commits) page_pool: add a comment explaining the fragment counter usage net: ethtool: fix __ethtool_dev_mm_supported() implementation ethtool: pse-pd: Fix double word in comments xsk: add linux/vmalloc.h to xsk.c sefltests: netdevsim: wait for devlink instance after netns removal selftest: fib_tests: Always cleanup before exit net/mlx5e: Align IPsec ASO result memory to be as required by hardware net/mlx5e: TC, Set CT miss to the specific ct action instance net/mlx5e: Rename CHAIN_TO_REG to MAPPED_OBJ_TO_REG net/mlx5: Refactor tc miss handling to a single function net/mlx5: Kconfig: Make tc offload depend on tc skb extension net/sched: flower: Support hardware miss to tc action net/sched: flower: Move filter handle initialization earlier net/sched: cls_api: Support hardware miss to tc action net/sched: Rename user cookie and act cookie sfc: fix builds without CONFIG_RTC_LIB sfc: clean up some inconsistent indentings net/mlx4_en: Introduce flexible array to silence overflow warning net: lan966x: Fix possible deadlock inside PTP net/ulp: Remove redundant ->clone() test in inet_clone_ulp(). ... --- drivers/char/hw_random/Kconfig | 577 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 577 insertions(+) create mode 100644 drivers/char/hw_random/Kconfig (limited to 'drivers/char/hw_random/Kconfig') diff --git a/drivers/char/hw_random/Kconfig b/drivers/char/hw_random/Kconfig new file mode 100644 index 000000000..4fdf07ae3 --- /dev/null +++ b/drivers/char/hw_random/Kconfig @@ -0,0 +1,577 @@ +# SPDX-License-Identifier: GPL-2.0-only +# +# Hardware Random Number Generator (RNG) configuration +# + +menuconfig HW_RANDOM + tristate "Hardware Random Number Generator Core support" + default m + help + Hardware Random Number Generator Core infrastructure. + + To compile this driver as a module, choose M here: the + module will be called rng-core. This provides a device + that's usually called /dev/hwrng, and which exposes one + of possibly several hardware random number generators. + + These hardware random number generators do feed into the + kernel's random number generator entropy pool. + + If unsure, say Y. + +if HW_RANDOM + +config HW_RANDOM_TIMERIOMEM + tristate "Timer IOMEM HW Random Number Generator support" + depends on HAS_IOMEM + help + This driver provides kernel-side support for a generic Random + Number Generator used by reading a 'dumb' iomem address that + is to be read no faster than, for example, once a second; + the default FPGA bitstream on the TS-7800 has such functionality. + + To compile this driver as a module, choose M here: the + module will be called timeriomem-rng. + + If unsure, say Y. + +config HW_RANDOM_INTEL + tristate "Intel HW Random Number Generator support" + depends on (X86 || IA64) && PCI + default HW_RANDOM + help + This driver provides kernel-side support for the Random Number + Generator hardware found on Intel i8xx-based motherboards. + + To compile this driver as a module, choose M here: the + module will be called intel-rng. + + If unsure, say Y. + +config HW_RANDOM_AMD + tristate "AMD HW Random Number Generator support" + depends on (X86 || PPC_MAPLE) && PCI + default HW_RANDOM + help + This driver provides kernel-side support for the Random Number + Generator hardware found on AMD 76x-based motherboards. + + To compile this driver as a module, choose M here: the + module will be called amd-rng. + + If unsure, say Y. + +config HW_RANDOM_ATMEL + tristate "Atmel Random Number Generator support" + depends on (ARCH_AT91 || COMPILE_TEST) && HAVE_CLK && OF + default HW_RANDOM + help + This driver provides kernel-side support for the Random Number + Generator hardware found on Atmel AT91 devices. + + To compile this driver as a module, choose M here: the + module will be called atmel-rng. + + If unsure, say Y. + +config HW_RANDOM_BA431 + tristate "Silex Insight BA431 Random Number Generator support" + depends on HAS_IOMEM + help + This driver provides kernel-side support for the Random Number + Generator hardware based on Silex Insight BA431 IP. + + To compile this driver as a module, choose M here: the + module will be called ba431-rng. + +config HW_RANDOM_BCM2835 + tristate "Broadcom BCM2835/BCM63xx Random Number Generator support" + depends on ARCH_BCM2835 || ARCH_BCM_NSP || ARCH_BCM_5301X || \ + ARCH_BCMBCA || BCM63XX || BMIPS_GENERIC || COMPILE_TEST + default HW_RANDOM + help + This driver provides kernel-side support for the Random Number + Generator hardware found on the Broadcom BCM2835 and BCM63xx SoCs. + + To compile this driver as a module, choose M here: the + module will be called bcm2835-rng + + If unsure, say Y. + +config HW_RANDOM_IPROC_RNG200 + tristate "Broadcom iProc/STB RNG200 support" + depends on ARCH_BCM_IPROC || ARCH_BCM2835 || ARCH_BRCMSTB || COMPILE_TEST + default HW_RANDOM + help + This driver provides kernel-side support for the RNG200 + hardware found on the Broadcom iProc and STB SoCs. + + To compile this driver as a module, choose M here: the + module will be called iproc-rng200 + + If unsure, say Y. + +config HW_RANDOM_GEODE + tristate "AMD Geode HW Random Number Generator support" + depends on X86_32 && PCI + default HW_RANDOM + help + This driver provides kernel-side support for the Random Number + Generator hardware found on the AMD Geode LX. + + To compile this driver as a module, choose M here: the + module will be called geode-rng. + + If unsure, say Y. + +config HW_RANDOM_N2RNG + tristate "Niagara2 Random Number Generator support" + depends on SPARC64 + default HW_RANDOM + help + This driver provides kernel-side support for the Random Number + Generator hardware found on Niagara2 cpus. + + To compile this driver as a module, choose M here: the + module will be called n2-rng. + + If unsure, say Y. + +config HW_RANDOM_VIA + tristate "VIA HW Random Number Generator support" + depends on X86 + default HW_RANDOM + help + This driver provides kernel-side support for the Random Number + Generator hardware found on VIA based motherboards. + + To compile this driver as a module, choose M here: the + module will be called via-rng. + + If unsure, say Y. + +config HW_RANDOM_IXP4XX + tristate "Intel IXP4xx NPU HW Pseudo-Random Number Generator support" + depends on ARCH_IXP4XX || COMPILE_TEST + default HW_RANDOM + help + This driver provides kernel-side support for the Pseudo-Random + Number Generator hardware found on the Intel IXP45x/46x NPU. + + To compile this driver as a module, choose M here: the + module will be called ixp4xx-rng. + + If unsure, say Y. + +config HW_RANDOM_OMAP + tristate "OMAP Random Number Generator support" + depends on ARCH_OMAP16XX || ARCH_OMAP2PLUS || ARCH_MVEBU || ARCH_K3 || COMPILE_TEST + default HW_RANDOM + help + This driver provides kernel-side support for the Random Number + Generator hardware found on OMAP16xx, OMAP2/3/4/5, AM33xx/AM43xx + multimedia processors, and Marvell Armada 7k/8k SoCs. + + To compile this driver as a module, choose M here: the + module will be called omap-rng. + + If unsure, say Y. + +config HW_RANDOM_OMAP3_ROM + tristate "OMAP3 ROM Random Number Generator support" + depends on ARCH_OMAP3 || COMPILE_TEST + default HW_RANDOM + help + This driver provides kernel-side support for the Random Number + Generator hardware found on OMAP34xx processors. + + To compile this driver as a module, choose M here: the + module will be called omap3-rom-rng. + + If unsure, say Y. + +config HW_RANDOM_OCTEON + tristate "Octeon Random Number Generator support" + depends on CAVIUM_OCTEON_SOC + default HW_RANDOM + help + This driver provides kernel-side support for the Random Number + Generator hardware found on Octeon processors. + + To compile this driver as a module, choose M here: the + module will be called octeon-rng. + + If unsure, say Y. + +config HW_RANDOM_PASEMI + tristate "PA Semi HW Random Number Generator support" + depends on PPC_PASEMI + default HW_RANDOM + help + This driver provides kernel-side support for the Random Number + Generator hardware found on PA Semi PWRficient SoCs. + + To compile this driver as a module, choose M here: the + module will be called pasemi-rng. + + If unsure, say Y. + +config HW_RANDOM_VIRTIO + tristate "VirtIO Random Number Generator support" + depends on VIRTIO + help + This driver provides kernel-side support for the virtual Random Number + Generator hardware. + + To compile this driver as a module, choose M here: the + module will be called virtio-rng. If unsure, say N. + +config HW_RANDOM_MXC_RNGA + tristate "Freescale i.MX RNGA Random Number Generator" + depends on SOC_IMX31 + default HW_RANDOM + help + This driver provides kernel-side support for the Random Number + Generator hardware found on Freescale i.MX processors. + + To compile this driver as a module, choose M here: the + module will be called mxc-rnga. + + If unsure, say Y. + +config HW_RANDOM_IMX_RNGC + tristate "Freescale i.MX RNGC Random Number Generator" + depends on HAS_IOMEM && HAVE_CLK + depends on SOC_IMX25 || SOC_IMX6SL || SOC_IMX6SLL || SOC_IMX6UL || COMPILE_TEST + default HW_RANDOM + help + This driver provides kernel-side support for the Random Number + Generator Version C hardware found on some Freescale i.MX + processors. Version B is also supported by this driver. + + To compile this driver as a module, choose M here: the + module will be called imx-rngc. + + If unsure, say Y. + +config HW_RANDOM_INGENIC_RNG + tristate "Ingenic Random Number Generator support" + depends on HW_RANDOM + depends on MACH_JZ4780 || MACH_X1000 + default HW_RANDOM + help + This driver provides kernel-side support for the Random Number Generator + hardware found in ingenic JZ4780 and X1000 SoC. MIPS Creator CI20 uses + JZ4780 SoC, YSH & ATIL CU1000-Neo uses X1000 SoC. + + To compile this driver as a module, choose M here: the + module will be called ingenic-rng. + + If unsure, say Y. + +config HW_RANDOM_INGENIC_TRNG + tristate "Ingenic True Random Number Generator support" + depends on HW_RANDOM + depends on MACH_X1830 + default HW_RANDOM + help + This driver provides kernel-side support for the True Random Number Generator + hardware found in ingenic X1830 SoC. YSH & ATIL CU1830-Neo uses X1830 SoC. + + To compile this driver as a module, choose M here: the + module will be called ingenic-trng. + + If unsure, say Y. + +config HW_RANDOM_NOMADIK + tristate "ST-Ericsson Nomadik Random Number Generator support" + depends on ARCH_NOMADIK || COMPILE_TEST + default HW_RANDOM + help + This driver provides kernel-side support for the Random Number + Generator hardware found on ST-Ericsson SoCs (8815 and 8500). + + To compile this driver as a module, choose M here: the + module will be called nomadik-rng. + + If unsure, say Y. + +config HW_RANDOM_PSERIES + tristate "pSeries HW Random Number Generator support" + depends on PPC64 && IBMVIO + default HW_RANDOM + help + This driver provides kernel-side support for the Random Number + Generator hardware found on POWER7+ machines and above + + To compile this driver as a module, choose M here: the + module will be called pseries-rng. + + If unsure, say Y. + +config HW_RANDOM_POWERNV + tristate "PowerNV Random Number Generator support" + depends on PPC_POWERNV + default HW_RANDOM + help + This is the driver for Random Number Generator hardware found + in POWER7+ and above machines for PowerNV platform. + + To compile this driver as a module, choose M here: the + module will be called powernv-rng. + + If unsure, say Y. + +config HW_RANDOM_HISI + tristate "Hisilicon Random Number Generator support" + depends on HW_RANDOM && ARCH_HISI + default HW_RANDOM + help + This driver provides kernel-side support for the Random Number + Generator hardware found on Hisilicon Hip04 and Hip05 SoC. + + To compile this driver as a module, choose M here: the + module will be called hisi-rng. + + If unsure, say Y. + +config HW_RANDOM_ST + tristate "ST Microelectronics HW Random Number Generator support" + depends on HW_RANDOM && ARCH_STI + help + This driver provides kernel-side support for the Random Number + Generator hardware found on STi series of SoCs. + + To compile this driver as a module, choose M here: the + module will be called st-rng. + +config HW_RANDOM_XGENE + tristate "APM X-Gene True Random Number Generator (TRNG) support" + depends on HW_RANDOM && ARCH_XGENE + default HW_RANDOM + help + This driver provides kernel-side support for the Random Number + Generator hardware found on APM X-Gene SoC. + + To compile this driver as a module, choose M here: the + module will be called xgene_rng. + + If unsure, say Y. + +config HW_RANDOM_STM32 + tristate "STMicroelectronics STM32 random number generator" + depends on HW_RANDOM && (ARCH_STM32 || COMPILE_TEST) + depends on HAS_IOMEM + default HW_RANDOM + help + This driver provides kernel-side support for the Random Number + Generator hardware found on STM32 microcontrollers. + + To compile this driver as a module, choose M here: the + module will be called stm32-rng. + + If unsure, say N. + +config HW_RANDOM_PIC32 + tristate "Microchip PIC32 Random Number Generator support" + depends on HW_RANDOM && MACH_PIC32 + default y + help + This driver provides kernel-side support for the Random Number + Generator hardware found on a PIC32. + + To compile this driver as a module, choose M here. the + module will be called pic32-rng. + + If unsure, say Y. + +config HW_RANDOM_POLARFIRE_SOC + tristate "Microchip PolarFire SoC Random Number Generator support" + depends on HW_RANDOM && POLARFIRE_SOC_SYS_CTRL + help + This driver provides kernel-side support for the Random Number + Generator hardware found on PolarFire SoC (MPFS). + + To compile this driver as a module, choose M here. The + module will be called mfps_rng. + + If unsure, say N. + + +config HW_RANDOM_MESON + tristate "Amlogic Meson Random Number Generator support" + depends on HW_RANDOM + depends on ARCH_MESON || COMPILE_TEST + default y + help + This driver provides kernel-side support for the Random Number + Generator hardware found on Amlogic Meson SoCs. + + To compile this driver as a module, choose M here. the + module will be called meson-rng. + + If unsure, say Y. + +config HW_RANDOM_CAVIUM + tristate "Cavium ThunderX Random Number Generator support" + depends on HW_RANDOM && PCI && ARCH_THUNDER + default HW_RANDOM + help + This driver provides kernel-side support for the Random Number + Generator hardware found on Cavium SoCs. + + To compile this driver as a module, choose M here: the + module will be called cavium_rng. + + If unsure, say Y. + +config HW_RANDOM_MTK + tristate "Mediatek Random Number Generator support" + depends on HW_RANDOM + depends on ARCH_MEDIATEK || COMPILE_TEST + default y + help + This driver provides kernel-side support for the Random Number + Generator hardware found on Mediatek SoCs. + + To compile this driver as a module, choose M here. the + module will be called mtk-rng. + + If unsure, say Y. + +config HW_RANDOM_S390 + tristate "S390 True Random Number Generator support" + depends on S390 + default HW_RANDOM + help + This driver provides kernel-side support for the True + Random Number Generator available as CPACF extension + on modern s390 hardware platforms. + + To compile this driver as a module, choose M here: the + module will be called s390-trng. + + If unsure, say Y. + +config HW_RANDOM_EXYNOS + tristate "Samsung Exynos True Random Number Generator support" + depends on ARCH_EXYNOS || COMPILE_TEST + default HW_RANDOM + help + This driver provides support for the True Random Number + Generator available in Exynos SoCs. + + To compile this driver as a module, choose M here: the module + will be called exynos-trng. + + If unsure, say Y. + +config HW_RANDOM_OPTEE + tristate "OP-TEE based Random Number Generator support" + depends on OPTEE + default HW_RANDOM + help + This driver provides support for OP-TEE based Random Number + Generator on ARM SoCs where hardware entropy sources are not + accessible to normal world (Linux). + + To compile this driver as a module, choose M here: the module + will be called optee-rng. + + If unsure, say Y. + +config HW_RANDOM_NPCM + tristate "NPCM Random Number Generator support" + depends on ARCH_NPCM || COMPILE_TEST + default HW_RANDOM + help + This driver provides support for the Random Number + Generator hardware available in Nuvoton NPCM SoCs. + + To compile this driver as a module, choose M here: the + module will be called npcm-rng. + + If unsure, say Y. + +config HW_RANDOM_KEYSTONE + depends on ARCH_KEYSTONE || COMPILE_TEST + depends on HAS_IOMEM && OF + default HW_RANDOM + tristate "TI Keystone NETCP SA Hardware random number generator" + help + This option enables Keystone's hardware random generator. + +config HW_RANDOM_CCTRNG + tristate "Arm CryptoCell True Random Number Generator support" + depends on HAS_IOMEM && OF + help + Say 'Y' to enable the True Random Number Generator driver for the + Arm TrustZone CryptoCell family of processors. + Currently the CryptoCell 713 and 703 are supported. + The driver is supported only in SoC where Trusted Execution + Environment is not used. + Choose 'M' to compile this driver as a module. The module + will be called cctrng. + If unsure, say 'N'. + +config HW_RANDOM_XIPHERA + tristate "Xiphera FPGA based True Random Number Generator support" + depends on HAS_IOMEM + help + This driver provides kernel-side support for Xiphera True Random + Number Generator Intellectual Property Core. + + To compile this driver as a module, choose M here: the + module will be called xiphera-trng. + +config HW_RANDOM_ARM_SMCCC_TRNG + tristate "Arm SMCCC TRNG firmware interface support" + depends on HAVE_ARM_SMCCC_DISCOVERY + default HW_RANDOM + help + Say 'Y' to enable the True Random Number Generator driver using + the Arm SMCCC TRNG firmware interface. This reads entropy from + higher exception levels (firmware, hypervisor). Uses SMCCC for + communicating with the firmware: + https://developer.arm.com/documentation/den0098/latest/ + + To compile this driver as a module, choose M here: the + module will be called arm_smccc_trng. + +config HW_RANDOM_CN10K + tristate "Marvell CN10K Random Number Generator support" + depends on HW_RANDOM && PCI && (ARM64 || (64BIT && COMPILE_TEST)) + default HW_RANDOM + help + This driver provides support for the True Random Number + generator available in Marvell CN10K SoCs. + + To compile this driver as a module, choose M here. + The module will be called cn10k_rng. If unsure, say Y. + +config HW_RANDOM_JH7110 + tristate "StarFive JH7110 Random Number Generator support" + depends on SOC_STARFIVE || COMPILE_TEST + help + This driver provides support for the True Random Number + Generator in StarFive JH7110 SoCs. + + To compile this driver as a module, choose M here. + The module will be called jh7110-trng. + +endif # HW_RANDOM + +config UML_RANDOM + depends on UML + select HW_RANDOM + tristate "UML Random Number Generator support" + help + This option enables UML's "hardware" random number generator. It + attaches itself to the host's /dev/random, supplying as much entropy + as the host has, rather than the small amount the UML gets from its + own drivers. It registers itself as a rng-core driver thus providing + a device which is usually called /dev/hwrng. This hardware random + number generator does feed into the kernel's random number generator + entropy pool. + + If unsure, say Y. -- cgit v1.2.3