diff options
Diffstat (limited to 'drivers/char/hw_random/Kconfig')
| -rw-r--r-- | drivers/char/hw_random/Kconfig | 535 |
1 files changed, 426 insertions, 109 deletions
diff --git a/drivers/char/hw_random/Kconfig b/drivers/char/hw_random/Kconfig index 40a865449f35..492a2a61a65b 100644 --- a/drivers/char/hw_random/Kconfig +++ b/drivers/char/hw_random/Kconfig @@ -1,29 +1,30 @@ +# SPDX-License-Identifier: GPL-2.0-only # # Hardware Random Number Generator (RNG) configuration # -config HW_RANDOM +menuconfig HW_RANDOM tristate "Hardware Random Number Generator Core support" default m - ---help--- + 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/hw_random, and which exposes one + that's usually called /dev/hwrng, and which exposes one of possibly several hardware random number generators. - These hardware random number generators do not feed directly - into the kernel's random number generator. That is usually - handled by the "rngd" daemon. Documentation/hw_random.txt - has more information. + 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 HW_RANDOM && HAS_IOMEM - ---help--- + 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; @@ -36,9 +37,9 @@ config HW_RANDOM_TIMERIOMEM config HW_RANDOM_INTEL tristate "Intel HW Random Number Generator support" - depends on HW_RANDOM && (X86 || IA64) && PCI + depends on (X86 || COMPILE_TEST) && PCI default HW_RANDOM - ---help--- + help This driver provides kernel-side support for the Random Number Generator hardware found on Intel i8xx-based motherboards. @@ -49,9 +50,10 @@ config HW_RANDOM_INTEL config HW_RANDOM_AMD tristate "AMD HW Random Number Generator support" - depends on HW_RANDOM && (X86 || PPC_MAPLE) && PCI + depends on (X86 || COMPILE_TEST) + depends on PCI && HAS_IOPORT_MAP default HW_RANDOM - ---help--- + help This driver provides kernel-side support for the Random Number Generator hardware found on AMD 76x-based motherboards. @@ -60,11 +62,24 @@ config HW_RANDOM_AMD If unsure, say Y. +config HW_RANDOM_AIROHA + tristate "Airoha True HW Random Number Generator support" + depends on ARCH_AIROHA || COMPILE_TEST + default HW_RANDOM + help + This driver provides kernel-side support for the True Random Number + Generator hardware found on Airoha SoC. + + To compile this driver as a module, choose M here: the + module will be called airoha-rng. + + If unsure, say Y. + config HW_RANDOM_ATMEL tristate "Atmel Random Number Generator support" - depends on HW_RANDOM && HAVE_CLK - default (HW_RANDOM && ARCH_AT91) - ---help--- + depends on (ARCH_MICROCHIP || COMPILE_TEST) + default HW_RANDOM + help This driver provides kernel-side support for the Random Number Generator hardware found on Atmel AT91 devices. @@ -73,37 +88,62 @@ config HW_RANDOM_ATMEL If unsure, say Y. -config HW_RANDOM_BCM63XX - tristate "Broadcom BCM63xx Random Number Generator support" - depends on HW_RANDOM && BCM63XX - default HW_RANDOM - ---help--- +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 found on the Broadcom BCM63xx SoCs. + Generator hardware based on Silex Insight BA431 IP. To compile this driver as a module, choose M here: the - module will be called bcm63xx-rng - - If unusure, say Y. + module will be called ba431-rng. config HW_RANDOM_BCM2835 - tristate "Broadcom BCM2835 Random Number Generator support" - depends on HW_RANDOM && ARCH_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--- + help This driver provides kernel-side support for the Random Number - Generator hardware found on the Broadcom BCM2835 SoCs. + 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_BCM74110 + tristate "Broadcom BCM74110 Random Number Generator support" + depends on ARCH_BRCMSTB || COMPILE_TEST + default HW_RANDOM + help + This driver provides kernel-side support for the Random Number + Generator hardware found on the Broadcom BCM74110 SoCs. + + To compile this driver as a module, choose M here: the + module will be called bcm74110-rng + + If unsure, say Y. + +config HW_RANDOM_IPROC_RNG200 + tristate "Broadcom iProc/STB RNG200 support" + depends on ARCH_BCM_IPROC || ARCH_BCM2835 || ARCH_BCMBCA || 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 HW_RANDOM && X86_32 && PCI + depends on (X86_32 || COMPILE_TEST) + depends on PCI default HW_RANDOM - ---help--- + help This driver provides kernel-side support for the Random Number Generator hardware found on the AMD Geode LX. @@ -114,9 +154,9 @@ config HW_RANDOM_GEODE config HW_RANDOM_N2RNG tristate "Niagara2 Random Number Generator support" - depends on HW_RANDOM && SPARC64 + depends on SPARC64 default HW_RANDOM - ---help--- + help This driver provides kernel-side support for the Random Number Generator hardware found on Niagara2 cpus. @@ -127,9 +167,9 @@ config HW_RANDOM_N2RNG config HW_RANDOM_VIA tristate "VIA HW Random Number Generator support" - depends on HW_RANDOM && X86 + depends on X86 default HW_RANDOM - ---help--- + help This driver provides kernel-side support for the Random Number Generator hardware found on VIA based motherboards. @@ -140,9 +180,9 @@ config HW_RANDOM_VIA config HW_RANDOM_IXP4XX tristate "Intel IXP4xx NPU HW Pseudo-Random Number Generator support" - depends on HW_RANDOM && ARCH_IXP4XX + depends on ARCH_IXP4XX || COMPILE_TEST default HW_RANDOM - ---help--- + help This driver provides kernel-side support for the Pseudo-Random Number Generator hardware found on the Intel IXP45x/46x NPU. @@ -153,23 +193,36 @@ config HW_RANDOM_IXP4XX config HW_RANDOM_OMAP tristate "OMAP Random Number Generator support" - depends on HW_RANDOM && (ARCH_OMAP16XX || ARCH_OMAP2) + 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 and OMAP24xx multimedia - processors. + 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. + 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 HW_RANDOM && CAVIUM_OCTEON_SOC + depends on CAVIUM_OCTEON_SOC default HW_RANDOM - ---help--- + help This driver provides kernel-side support for the Random Number Generator hardware found on Octeon processors. @@ -180,9 +233,9 @@ config HW_RANDOM_OCTEON config HW_RANDOM_PASEMI tristate "PA Semi HW Random Number Generator support" - depends on HW_RANDOM && PPC_PASEMI + depends on PPC_PASEMI || (PPC && COMPILE_TEST) default HW_RANDOM - ---help--- + help This driver provides kernel-side support for the Random Number Generator hardware found on PA Semi PWRficient SoCs. @@ -193,43 +246,75 @@ config HW_RANDOM_PASEMI config HW_RANDOM_VIRTIO tristate "VirtIO Random Number Generator support" - depends on HW_RANDOM && VIRTIO - ---help--- + 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_TX4939 - tristate "TX4939 Random Number Generator support" - depends on HW_RANDOM && SOC_TX4939 +config HW_RANDOM_MXC_RNGA + tristate "Freescale i.MX RNGA Random Number Generator" + depends on SOC_IMX31 || COMPILE_TEST default HW_RANDOM - ---help--- + help This driver provides kernel-side support for the Random Number - Generator hardware found on TX4939 SoC. + Generator hardware found on Freescale i.MX processors. To compile this driver as a module, choose M here: the - module will be called tx4939-rng. + module will be called mxc-rnga. If unsure, say Y. -config HW_RANDOM_MXC_RNGA - tristate "Freescale i.MX RNGA Random Number Generator" - depends on HW_RANDOM && ARCH_HAS_RNGA - ---help--- +config HW_RANDOM_IMX_RNGC + tristate "Freescale i.MX RNGC Random Number Generator" + depends on HAS_IOMEM + 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 hardware found on Freescale i.MX processors. + 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 mxc-rnga. + module will be called imx-rngc. + + If unsure, say Y. + +config HW_RANDOM_INGENIC_RNG + tristate "Ingenic Random Number Generator support" + depends on MACH_JZ4780 || MACH_X1000 || COMPILE_TEST + 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 MACH_X1830 || COMPILE_TEST + 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 HW_RANDOM && ARCH_NOMADIK - ---help--- + depends on ARCH_NOMADIK || COMPILE_TEST + depends on ARM_AMBA + default HW_RANDOM + help This driver provides kernel-side support for the Random Number Generator hardware found on ST-Ericsson SoCs (8815 and 8500). @@ -238,79 +323,311 @@ config HW_RANDOM_NOMADIK If unsure, say Y. -config HW_RANDOM_PICOXCELL - tristate "Picochip picoXcell true random number generator support" - depends on HW_RANDOM && ARCH_PICOXCELL && PICOXCELL_PC3X3 - ---help--- +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 Picochip PC3x3 and later devices. + Generator hardware found on POWER7+ machines and above To compile this driver as a module, choose M here: the - module will be called picoxcell-rng. + module will be called pseries-rng. If unsure, say Y. -config HW_RANDOM_PPC4XX - tristate "PowerPC 4xx generic true random number generator support" - depends on HW_RANDOM && PPC && 4xx - ---help--- - This driver provides the kernel-side support for the TRNG hardware - found in the security function of some PowerPC 4xx SoCs. +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 ppc4xx-rng. + To compile this driver as a module, choose M here: the + module will be called powernv-rng. - If unsure, say N. + If unsure, say Y. -config UML_RANDOM - depends on UML - tristate "Hardware random number generator" +config HW_RANDOM_HISI + tristate "Hisilicon Random Number Generator support" + depends on ARCH_HISI || COMPILE_TEST + default HW_RANDOM 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 standard hardware random number - generator, major 10, minor 183, and the canonical device name is - /dev/hwrng. - The way to make use of this is to install the rng-tools package - (check your distro, or download from - http://sourceforge.net/projects/gkernel/). rngd periodically reads - /dev/hwrng and injects the entropy into /dev/random. + This driver provides kernel-side support for the Random Number + Generator hardware found on Hisilicon Hip04 and Hip05 SoC. -config HW_RANDOM_PSERIES - tristate "pSeries HW Random Number Generator support" - depends on HW_RANDOM && PPC64 && IBMVIO + To compile this driver as a module, choose M here: the + module will be called hisi-rng. + + If unsure, say Y. + +config HW_RANDOM_HISTB + tristate "Hisilicon STB Random Number Generator support" + depends on ARCH_HISI || COMPILE_TEST + default ARCH_HISI + help + This driver provides kernel-side support for the Random Number + Generator hardware found on Hisilicon Hi37xx SoC. + + To compile this driver as a module, choose M here: the + module will be called histb-rng. + +config HW_RANDOM_ST + tristate "ST Microelectronics HW Random Number Generator support" + depends on ARCH_STI || COMPILE_TEST + 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 ARCH_XGENE || COMPILE_TEST default HW_RANDOM - ---help--- + help This driver provides kernel-side support for the Random Number - Generator hardware found on POWER7+ machines and above + Generator hardware found on APM X-Gene SoC. To compile this driver as a module, choose M here: the - module will be called pseries-rng. + module will be called xgene_rng. If unsure, say Y. -config HW_RANDOM_EXYNOS - tristate "EXYNOS HW random number generator support" - depends on HW_RANDOM && HAS_IOMEM && HAVE_CLK - ---help--- +config HW_RANDOM_STM32 + tristate "STMicroelectronics STM32 random number generator" + depends on 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 EXYNOS SOCs. + Generator hardware found on STM32 microcontrollers. To compile this driver as a module, choose M here: the - module will be called exynos-rng. + module will be called stm32-rng. + + If unsure, say N. + +config HW_RANDOM_PIC32 + tristate "Microchip PIC32 Random Number Generator support" + depends on MACH_PIC32 || COMPILE_TEST + default HW_RANDOM if MACH_PIC32 + 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_TPM - tristate "TPM HW Random Number Generator support" - depends on HW_RANDOM && TCG_TPM +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 ARCH_MESON || COMPILE_TEST + depends on HAS_IOMEM && OF + default HW_RANDOM if ARCH_MESON + 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 PCI + depends on ARCH_THUNDER || (ARM64 && COMPILE_TEST) default HW_RANDOM - ---help--- + help This driver provides kernel-side support for the Random Number - Generator in the Trusted Platform Module + Generator hardware found on Cavium SoCs. To compile this driver as a module, choose M here: the - module will be called tpm-rng. + module will be called cavium_rng. + + If unsure, say Y. + +config HW_RANDOM_MTK + tristate "Mediatek Random Number Generator support" + depends on ARCH_MEDIATEK || COMPILE_TEST + depends on HAS_IOMEM && OF + default HW_RANDOM if ARCH_MEDIATEK + 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 + depends on HAS_IOMEM + default HW_RANDOM if ARCH_EXYNOS + 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 + depends on HAS_IOMEM + default HW_RANDOM if ARCH_NPCM + 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 + tristate "TI Keystone NETCP SA Hardware random number generator" + depends on ARCH_KEYSTONE || COMPILE_TEST + depends on HAS_IOMEM && OF + default HW_RANDOM + 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 if ARCH_THUNDER + 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. + +config HW_RANDOM_ROCKCHIP + tristate "Rockchip True Random Number Generator" + depends on HW_RANDOM && (ARCH_ROCKCHIP || COMPILE_TEST) + depends on HAS_IOMEM + default HW_RANDOM + help + This driver provides kernel-side support for the True Random Number + Generator hardware found on some Rockchip SoCs like RK3566, RK3568 + or RK3588. + + To compile this driver as a module, choose M here: the + module will be called rockchip-rng. + + If unsure, say Y. + +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. |