diff options
| -rw-r--r-- | Documentation/devicetree/bindings/chosen.txt | 45 | ||||
| -rw-r--r-- | Documentation/kdump/kdump.txt | 16 | ||||
| -rw-r--r-- | arch/arm/configs/lsk_defconfig | 932 | ||||
| -rw-r--r-- | arch/arm64/Kconfig | 11 | ||||
| -rw-r--r-- | arch/arm64/configs/defconfig | 1 | ||||
| -rw-r--r-- | arch/arm64/configs/lsk_defconfig | 468 | ||||
| -rw-r--r-- | arch/arm64/include/asm/cacheflush.h | 1 | ||||
| -rw-r--r-- | arch/arm64/include/asm/hardirq.h | 2 | ||||
| -rw-r--r-- | arch/arm64/include/asm/kexec.h | 52 | ||||
| -rw-r--r-- | arch/arm64/include/asm/percpu.h | 16 | ||||
| -rw-r--r-- | arch/arm64/include/asm/smp.h | 3 | ||||
| -rw-r--r-- | arch/arm64/kernel/Makefile | 1 | ||||
| -rw-r--r-- | arch/arm64/kernel/crash_dump.c | 71 | ||||
| -rw-r--r-- | arch/arm64/kernel/hibernate.c | 10 | ||||
| -rw-r--r-- | arch/arm64/kernel/machine_kexec.c | 170 | ||||
| -rw-r--r-- | arch/arm64/kernel/setup.c | 7 | ||||
| -rw-r--r-- | arch/arm64/kernel/smp.c | 68 | ||||
| -rw-r--r-- | arch/arm64/mm/fault.c | 8 | ||||
| -rw-r--r-- | arch/arm64/mm/init.c | 181 | ||||
| -rw-r--r-- | arch/arm64/mm/mmu.c | 89 | ||||
| -rw-r--r-- | arch/arm64/mm/pageattr.c | 15 | ||||
| -rw-r--r-- | drivers/firmware/efi/libstub/fdt.c | 28 | ||||
| -rw-r--r-- | include/linux/memblock.h | 2 | ||||
| -rw-r--r-- | mm/memblock.c | 56 |
24 files changed, 2161 insertions, 92 deletions
diff --git a/Documentation/devicetree/bindings/chosen.txt b/Documentation/devicetree/bindings/chosen.txt index 6ae9d82d4c37..b5e39af4ddc0 100644 --- a/Documentation/devicetree/bindings/chosen.txt +++ b/Documentation/devicetree/bindings/chosen.txt @@ -52,3 +52,48 @@ This property is set (currently only on PowerPC, and only needed on book3e) by some versions of kexec-tools to tell the new kernel that it is being booted by kexec, as the booting environment may differ (e.g. a different secondary CPU release mechanism) + +linux,usable-memory-range +------------------------- + +This property (arm64 only) holds a base address and size, describing a +limited region in which memory may be considered available for use by +the kernel. Memory outside of this range is not available for use. + +This property describes a limitation: memory within this range is only +valid when also described through another mechanism that the kernel +would otherwise use to determine available memory (e.g. memory nodes +or the EFI memory map). Valid memory may be sparse within the range. +e.g. + +/ { + chosen { + linux,usable-memory-range = <0x9 0xf0000000 0x0 0x10000000>; + }; +}; + +The main usage is for crash dump kernel to identify its own usable +memory and exclude, at its boot time, any other memory areas that are +part of the panicked kernel's memory. + +While this property does not represent a real hardware, the address +and the size are expressed in #address-cells and #size-cells, +respectively, of the root node. + +linux,elfcorehdr +---------------- + +This property (currently used only on arm64) holds the memory range, +the address and the size, of the elf core header which mainly describes +the panicked kernel's memory layout as PT_LOAD segments of elf format. +e.g. + +/ { + chosen { + linux,elfcorehdr = <0x9 0xfffff000 0x0 0x800>; + }; +}; + +While this property does not represent a real hardware, the address +and the size are expressed in #address-cells and #size-cells, +respectively, of the root node. diff --git a/Documentation/kdump/kdump.txt b/Documentation/kdump/kdump.txt index b0eb27b956d9..615434d81108 100644 --- a/Documentation/kdump/kdump.txt +++ b/Documentation/kdump/kdump.txt @@ -18,7 +18,7 @@ memory image to a dump file on the local disk, or across the network to a remote system. Kdump and kexec are currently supported on the x86, x86_64, ppc64, ia64, -s390x and arm architectures. +s390x, arm and arm64 architectures. When the system kernel boots, it reserves a small section of memory for the dump-capture kernel. This ensures that ongoing Direct Memory Access @@ -249,6 +249,13 @@ Dump-capture kernel config options (Arch Dependent, arm) AUTO_ZRELADDR=y +Dump-capture kernel config options (Arch Dependent, arm64) +---------------------------------------------------------- + +- Please note that kvm of the dump-capture kernel will not be enabled + on non-VHE systems even if it is configured. This is because the CPU + will not be reset to EL2 on panic. + Extended crashkernel syntax =========================== @@ -305,6 +312,8 @@ Boot into System Kernel kernel will automatically locate the crash kernel image within the first 512MB of RAM if X is not given. + On arm64, use "crashkernel=Y[@X]". Note that the start address of + the kernel, X if explicitly specified, must be aligned to 2MiB (0x200000). Load the Dump-capture Kernel ============================ @@ -327,6 +336,8 @@ For s390x: - Use image or bzImage For arm: - Use zImage +For arm64: + - Use vmlinux or Image If you are using a uncompressed vmlinux image then use following command to load dump-capture kernel. @@ -370,6 +381,9 @@ For s390x: For arm: "1 maxcpus=1 reset_devices" +For arm64: + "1 maxcpus=1 reset_devices" + Notes on loading the dump-capture kernel: * By default, the ELF headers are stored in ELF64 format to support diff --git a/arch/arm/configs/lsk_defconfig b/arch/arm/configs/lsk_defconfig new file mode 100644 index 000000000000..5dce9050d229 --- /dev/null +++ b/arch/arm/configs/lsk_defconfig @@ -0,0 +1,932 @@ +CONFIG_SYSVIPC=y +CONFIG_FHANDLE=y +CONFIG_IRQ_DOMAIN_DEBUG=y +CONFIG_NO_HZ=y +CONFIG_HIGH_RES_TIMERS=y +CONFIG_CGROUPS=y +CONFIG_BLK_DEV_INITRD=y +CONFIG_EMBEDDED=y +CONFIG_PERF_EVENTS=y +CONFIG_MODULES=y +CONFIG_MODULE_UNLOAD=y +CONFIG_PARTITION_ADVANCED=y +CONFIG_CMDLINE_PARTITION=y +CONFIG_ARCH_MULTI_V7=y +# CONFIG_ARCH_MULTI_V5 is not set +# CONFIG_ARCH_MULTI_V4 is not set +CONFIG_ARCH_VIRT=y +CONFIG_ARCH_ALPINE=y +CONFIG_ARCH_ARTPEC=y +CONFIG_MACH_ARTPEC6=y +CONFIG_ARCH_MVEBU=y +CONFIG_MACH_ARMADA_370=y +CONFIG_MACH_ARMADA_375=y +CONFIG_MACH_ARMADA_38X=y +CONFIG_MACH_ARMADA_39X=y +CONFIG_MACH_ARMADA_XP=y +CONFIG_MACH_DOVE=y +CONFIG_ARCH_AT91=y +CONFIG_SOC_SAMA5D2=y +CONFIG_SOC_SAMA5D3=y +CONFIG_SOC_SAMA5D4=y +CONFIG_ARCH_BCM=y +CONFIG_ARCH_BCM_CYGNUS=y +CONFIG_ARCH_BCM_NSP=y +CONFIG_ARCH_BCM_21664=y +CONFIG_ARCH_BCM_281XX=y +CONFIG_ARCH_BCM_5301X=y +CONFIG_ARCH_BCM2835=y +CONFIG_ARCH_BCM_63XX=y +CONFIG_ARCH_BRCMSTB=y +CONFIG_ARCH_BERLIN=y +CONFIG_MACH_BERLIN_BG2=y +CONFIG_MACH_BERLIN_BG2CD=y +CONFIG_MACH_BERLIN_BG2Q=y +CONFIG_ARCH_DIGICOLOR=y +CONFIG_ARCH_HIGHBANK=y +CONFIG_ARCH_HISI=y +CONFIG_ARCH_HI3xxx=y +CONFIG_ARCH_HIX5HD2=y +CONFIG_ARCH_HIP01=y +CONFIG_ARCH_HIP04=y +CONFIG_ARCH_KEYSTONE=y +CONFIG_ARCH_MESON=y +CONFIG_ARCH_MXC=y +CONFIG_SOC_IMX50=y +CONFIG_SOC_IMX51=y +CONFIG_SOC_IMX53=y +CONFIG_SOC_IMX6Q=y +CONFIG_SOC_IMX6SL=y +CONFIG_SOC_IMX6SX=y +CONFIG_SOC_IMX6UL=y +CONFIG_SOC_IMX7D=y +CONFIG_SOC_VF610=y +CONFIG_SOC_LS1021A=y +CONFIG_ARCH_OMAP3=y +CONFIG_ARCH_OMAP4=y +CONFIG_SOC_OMAP5=y +CONFIG_SOC_AM33XX=y +CONFIG_SOC_AM43XX=y +CONFIG_SOC_DRA7XX=y +CONFIG_ARCH_QCOM=y +CONFIG_ARCH_MEDIATEK=y +CONFIG_ARCH_MSM8X60=y +CONFIG_ARCH_MSM8960=y +CONFIG_ARCH_MSM8974=y +CONFIG_ARCH_ROCKCHIP=y +CONFIG_ARCH_SOCFPGA=y +CONFIG_PLAT_SPEAR=y +CONFIG_ARCH_SPEAR13XX=y +CONFIG_MACH_SPEAR1310=y +CONFIG_MACH_SPEAR1340=y +CONFIG_ARCH_STI=y +CONFIG_ARCH_EXYNOS=y +CONFIG_EXYNOS5420_MCPM=y +CONFIG_ARCH_RENESAS=y +CONFIG_ARCH_EMEV2=y +CONFIG_ARCH_R7S72100=y +CONFIG_ARCH_R8A73A4=y +CONFIG_ARCH_R8A7740=y +CONFIG_ARCH_R8A7778=y +CONFIG_ARCH_R8A7779=y +CONFIG_ARCH_R8A7790=y +CONFIG_ARCH_R8A7791=y +CONFIG_ARCH_R8A7792=y +CONFIG_ARCH_R8A7793=y +CONFIG_ARCH_R8A7794=y +CONFIG_ARCH_SH73A0=y +CONFIG_ARCH_SUNXI=y +CONFIG_ARCH_SIRF=y +CONFIG_ARCH_TEGRA=y +CONFIG_ARCH_TEGRA_2x_SOC=y +CONFIG_ARCH_TEGRA_3x_SOC=y +CONFIG_ARCH_TEGRA_114_SOC=y +CONFIG_ARCH_TEGRA_124_SOC=y +CONFIG_TEGRA_EMC_SCALING_ENABLE=y +CONFIG_ARCH_UNIPHIER=y +CONFIG_ARCH_U8500=y +CONFIG_MACH_HREFV60=y +CONFIG_MACH_SNOWBALL=y +CONFIG_ARCH_VEXPRESS=y +CONFIG_ARCH_VEXPRESS_CA9X4=y +CONFIG_ARCH_VEXPRESS_TC2_PM=y +CONFIG_ARCH_WM8850=y +CONFIG_ARCH_ZYNQ=y +CONFIG_TRUSTED_FOUNDATIONS=y +CONFIG_PCI=y +CONFIG_PCI_HOST_GENERIC=y +CONFIG_PCI_KEYSTONE=y +CONFIG_PCI_MSI=y +CONFIG_PCI_MVEBU=y +CONFIG_PCI_TEGRA=y +CONFIG_PCI_RCAR_GEN2=y +CONFIG_PCIE_RCAR=y +CONFIG_PCIEPORTBUS=y +CONFIG_SMP=y +CONFIG_NR_CPUS=16 +CONFIG_HIGHPTE=y +CONFIG_CMA=y +CONFIG_SECCOMP=y +CONFIG_ARM_APPENDED_DTB=y +CONFIG_ARM_ATAG_DTB_COMPAT=y +CONFIG_KEXEC=y +CONFIG_EFI=y +CONFIG_CPU_FREQ=y +CONFIG_CPU_FREQ_STAT_DETAILS=y +CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND=y +CONFIG_CPU_FREQ_GOV_POWERSAVE=m +CONFIG_CPU_FREQ_GOV_USERSPACE=m +CONFIG_CPU_FREQ_GOV_CONSERVATIVE=m +CONFIG_CPU_FREQ_GOV_SCHEDUTIL=y +CONFIG_ARM_IMX6Q_CPUFREQ=y +CONFIG_QORIQ_CPUFREQ=y +CONFIG_CPU_IDLE=y +CONFIG_ARM_CPUIDLE=y +CONFIG_NEON=y +CONFIG_KERNEL_MODE_NEON=y +CONFIG_ARM_ZYNQ_CPUIDLE=y +CONFIG_ARM_EXYNOS_CPUIDLE=y +CONFIG_NET=y +CONFIG_PACKET=y +CONFIG_UNIX=y +CONFIG_INET=y +CONFIG_IP_PNP=y +CONFIG_IP_PNP_DHCP=y +CONFIG_IP_PNP_BOOTP=y +CONFIG_IP_PNP_RARP=y +CONFIG_IPV6_ROUTER_PREF=y +CONFIG_IPV6_OPTIMISTIC_DAD=y +CONFIG_INET6_AH=m +CONFIG_INET6_ESP=m +CONFIG_INET6_IPCOMP=m +CONFIG_IPV6_MIP6=m +CONFIG_IPV6_TUNNEL=m +CONFIG_IPV6_MULTIPLE_TABLES=y +CONFIG_NET_DSA=m +CONFIG_NET_SWITCHDEV=y +CONFIG_CAN=y +CONFIG_CAN_RAW=y +CONFIG_CAN_BCM=y +CONFIG_CAN_DEV=y +CONFIG_CAN_AT91=m +CONFIG_CAN_RCAR=m +CONFIG_CAN_XILINXCAN=y +CONFIG_CAN_MCP251X=y +CONFIG_NET_DSA_BCM_SF2=m +CONFIG_CAN_SUN4I=y +CONFIG_BT=m +CONFIG_BT_MRVL=m +CONFIG_BT_MRVL_SDIO=m +CONFIG_CFG80211=m +CONFIG_MAC80211=m +CONFIG_RFKILL=y +CONFIG_RFKILL_INPUT=y +CONFIG_RFKILL_GPIO=y +CONFIG_DEVTMPFS=y +CONFIG_DEVTMPFS_MOUNT=y +CONFIG_DMA_CMA=y +CONFIG_CMA_SIZE_MBYTES=64 +CONFIG_OMAP_OCP2SCP=y +CONFIG_SIMPLE_PM_BUS=y +CONFIG_SUNXI_RSB=m +CONFIG_MTD=y +CONFIG_MTD_CMDLINE_PARTS=y +CONFIG_MTD_BLOCK=y +CONFIG_MTD_M25P80=y +CONFIG_MTD_NAND=y +CONFIG_MTD_NAND_DENALI_DT=y +CONFIG_MTD_NAND_ATMEL=y +CONFIG_MTD_NAND_BRCMNAND=y +CONFIG_MTD_NAND_VF610_NFC=y +CONFIG_MTD_NAND_DAVINCI=y +CONFIG_MTD_SPI_NOR=y +CONFIG_SPI_FSL_QUADSPI=m +CONFIG_MTD_UBI=y +CONFIG_BLK_DEV_LOOP=y +CONFIG_BLK_DEV_RAM=y +CONFIG_BLK_DEV_RAM_SIZE=65536 +CONFIG_VIRTIO_BLK=y +CONFIG_AD525X_DPOT=y +CONFIG_AD525X_DPOT_I2C=y +CONFIG_ATMEL_TCLIB=y +CONFIG_ICS932S401=y +CONFIG_ATMEL_SSC=m +CONFIG_QCOM_COINCELL=m +CONFIG_APDS9802ALS=y +CONFIG_ISL29003=y +CONFIG_EEPROM_AT24=y +CONFIG_BLK_DEV_SD=y +CONFIG_BLK_DEV_SR=y +CONFIG_SCSI_MULTI_LUN=y +CONFIG_ATA=y +CONFIG_SATA_AHCI=y +CONFIG_SATA_AHCI_PLATFORM=y +CONFIG_AHCI_BRCM=y +CONFIG_AHCI_ST=y +CONFIG_AHCI_IMX=y +CONFIG_AHCI_SUNXI=y +CONFIG_AHCI_TEGRA=y +CONFIG_SATA_HIGHBANK=y +CONFIG_SATA_MV=y +CONFIG_SATA_RCAR=y +CONFIG_NETDEVICES=y +CONFIG_VIRTIO_NET=y +CONFIG_HIX5HD2_GMAC=y +CONFIG_SUN4I_EMAC=y +CONFIG_MACB=y +CONFIG_BCMGENET=m +CONFIG_SYSTEMPORT=m +CONFIG_NET_CALXEDA_XGMAC=y +CONFIG_GIANFAR=y +CONFIG_IGB=y +CONFIG_MV643XX_ETH=y +CONFIG_MVNETA=y +CONFIG_PXA168_ETH=m +CONFIG_KS8851=y +CONFIG_R8169=y +CONFIG_SH_ETH=y +CONFIG_SMSC911X=y +CONFIG_STMMAC_ETH=y +CONFIG_SYNOPSYS_DWC_ETH_QOS=y +CONFIG_TI_CPSW=y +CONFIG_XILINX_EMACLITE=y +CONFIG_AT803X_PHY=y +CONFIG_MARVELL_PHY=y +CONFIG_SMSC_PHY=y +CONFIG_BROADCOM_PHY=y +CONFIG_ICPLUS_PHY=y +CONFIG_REALTEK_PHY=y +CONFIG_MICREL_PHY=y +CONFIG_FIXED_PHY=y +CONFIG_USB_PEGASUS=y +CONFIG_USB_RTL8152=m +CONFIG_USB_USBNET=y +CONFIG_USB_NET_SMSC75XX=y +CONFIG_USB_NET_SMSC95XX=y +CONFIG_BRCMFMAC=m +CONFIG_RT2X00=m +CONFIG_RT2800USB=m +CONFIG_MWIFIEX=m +CONFIG_MWIFIEX_SDIO=m +CONFIG_INPUT_JOYDEV=y +CONFIG_INPUT_EVDEV=y +CONFIG_KEYBOARD_QT1070=m +CONFIG_KEYBOARD_GPIO=y +CONFIG_KEYBOARD_TEGRA=y +CONFIG_KEYBOARD_SPEAR=y +CONFIG_KEYBOARD_ST_KEYSCAN=y +CONFIG_KEYBOARD_CROS_EC=m +CONFIG_KEYBOARD_SAMSUNG=m +CONFIG_MOUSE_PS2_ELANTECH=y +CONFIG_MOUSE_CYAPA=m +CONFIG_MOUSE_ELAN_I2C=y +CONFIG_INPUT_TOUCHSCREEN=y +CONFIG_TOUCHSCREEN_ATMEL_MXT=m +CONFIG_TOUCHSCREEN_MMS114=m +CONFIG_TOUCHSCREEN_ST1232=m +CONFIG_TOUCHSCREEN_STMPE=y +CONFIG_TOUCHSCREEN_SUN4I=y +CONFIG_TOUCHSCREEN_WM97XX=m +CONFIG_INPUT_MISC=y +CONFIG_INPUT_MAX77693_HAPTIC=m +CONFIG_INPUT_MAX8997_HAPTIC=m +CONFIG_INPUT_MPU3050=y +CONFIG_INPUT_AXP20X_PEK=m +CONFIG_INPUT_ADXL34X=m +CONFIG_SERIO_AMBAKMI=y +CONFIG_SERIAL_8250=y +CONFIG_SERIAL_8250_CONSOLE=y +CONFIG_SERIAL_8250_DW=y +CONFIG_SERIAL_8250_EM=y +CONFIG_SERIAL_8250_MT6577=y +CONFIG_SERIAL_8250_UNIPHIER=y +CONFIG_SERIAL_AMBA_PL011=y +CONFIG_SERIAL_AMBA_PL011_CONSOLE=y +CONFIG_SERIAL_ATMEL=y +CONFIG_SERIAL_ATMEL_CONSOLE=y +CONFIG_SERIAL_ATMEL_TTYAT=y +CONFIG_SERIAL_BCM63XX=y +CONFIG_SERIAL_BCM63XX_CONSOLE=y +CONFIG_SERIAL_MESON=y +CONFIG_SERIAL_MESON_CONSOLE=y +CONFIG_SERIAL_SAMSUNG=y +CONFIG_SERIAL_SAMSUNG_CONSOLE=y +CONFIG_SERIAL_SIRFSOC=y +CONFIG_SERIAL_SIRFSOC_CONSOLE=y +CONFIG_SERIAL_TEGRA=y +CONFIG_SERIAL_IMX=y +CONFIG_SERIAL_IMX_CONSOLE=y +CONFIG_SERIAL_SH_SCI=y +CONFIG_SERIAL_SH_SCI_NR_UARTS=20 +CONFIG_SERIAL_SH_SCI_CONSOLE=y +CONFIG_SERIAL_MSM=y +CONFIG_SERIAL_MSM_CONSOLE=y +CONFIG_SERIAL_VT8500=y +CONFIG_SERIAL_VT8500_CONSOLE=y +CONFIG_SERIAL_OF_PLATFORM=y +CONFIG_SERIAL_OMAP=y +CONFIG_SERIAL_OMAP_CONSOLE=y +CONFIG_SERIAL_XILINX_PS_UART=y +CONFIG_SERIAL_XILINX_PS_UART_CONSOLE=y +CONFIG_SERIAL_FSL_LPUART=y +CONFIG_SERIAL_FSL_LPUART_CONSOLE=y +CONFIG_SERIAL_CONEXANT_DIGICOLOR=y +CONFIG_SERIAL_CONEXANT_DIGICOLOR_CONSOLE=y +CONFIG_SERIAL_ST_ASC=y +CONFIG_SERIAL_ST_ASC_CONSOLE=y +CONFIG_HVC_DRIVER=y +CONFIG_VIRTIO_CONSOLE=y +CONFIG_I2C_CHARDEV=y +CONFIG_I2C_DAVINCI=y +CONFIG_I2C_MUX=y +CONFIG_I2C_ARB_GPIO_CHALLENGE=m +CONFIG_I2C_MUX_PCA954x=y +CONFIG_I2C_MUX_PINCTRL=y +CONFIG_I2C_DEMUX_PINCTRL=y +CONFIG_I2C_AT91=m +CONFIG_I2C_BCM2835=y +CONFIG_I2C_CADENCE=y +CONFIG_I2C_DESIGNWARE_PLATFORM=y +CONFIG_I2C_DIGICOLOR=m +CONFIG_I2C_EMEV2=m +CONFIG_I2C_GPIO=m +CONFIG_I2C_EXYNOS5=y +CONFIG_I2C_IMX=m +CONFIG_I2C_MV64XXX=y +CONFIG_I2C_RIIC=y +CONFIG_I2C_RK3X=y +CONFIG_I2C_S3C2410=y +CONFIG_I2C_SH_MOBILE=y +CONFIG_I2C_SIRF=y +CONFIG_I2C_ST=y +CONFIG_I2C_SUN6I_P2WI=y +CONFIG_I2C_TEGRA=y +CONFIG_I2C_UNIPHIER=y +CONFIG_I2C_UNIPHIER_F=y +CONFIG_I2C_XILINX=y +CONFIG_I2C_RCAR=y +CONFIG_I2C_CROS_EC_TUNNEL=m +CONFIG_I2C_SLAVE_EEPROM=y +CONFIG_SPI=y +CONFIG_SPI_ATMEL=m +CONFIG_SPI_BCM2835=y +CONFIG_SPI_BCM2835AUX=y +CONFIG_SPI_CADENCE=y +CONFIG_SPI_DAVINCI=y +CONFIG_SPI_GPIO=m +CONFIG_SPI_FSL_DSPI=m +CONFIG_SPI_OMAP24XX=y +CONFIG_SPI_ORION=y +CONFIG_SPI_PL022=y +CONFIG_SPI_ROCKCHIP=m +CONFIG_SPI_RSPI=y +CONFIG_SPI_S3C64XX=m +CONFIG_SPI_SH_MSIOF=m +CONFIG_SPI_SH_HSPI=y +CONFIG_SPI_SIRF=y +CONFIG_SPI_SUN4I=y +CONFIG_SPI_SUN6I=y +CONFIG_SPI_TEGRA114=y +CONFIG_SPI_TEGRA20_SFLASH=y +CONFIG_SPI_TEGRA20_SLINK=y +CONFIG_SPI_XILINX=y +CONFIG_SPI_SPIDEV=y +CONFIG_SPMI=y +CONFIG_PINCTRL_AS3722=y +CONFIG_PINCTRL_PALMAS=y +CONFIG_PINCTRL_BCM2835=y +CONFIG_PINCTRL_APQ8064=y +CONFIG_PINCTRL_APQ8084=y +CONFIG_PINCTRL_IPQ8064=y +CONFIG_PINCTRL_MSM8660=y +CONFIG_PINCTRL_MSM8960=y +CONFIG_PINCTRL_MSM8X74=y +CONFIG_PINCTRL_MSM8916=y +CONFIG_PINCTRL_QCOM_SPMI_PMIC=y +CONFIG_PINCTRL_QCOM_SSBI_PMIC=y +CONFIG_GPIO_SYSFS=y +CONFIG_GPIO_GENERIC_PLATFORM=y +CONFIG_GPIO_DAVINCI=y +CONFIG_GPIO_DWAPB=y +CONFIG_GPIO_EM=y +CONFIG_GPIO_RCAR=y +CONFIG_GPIO_XILINX=y +CONFIG_GPIO_ZYNQ=y +CONFIG_GPIO_PCA953X=y +CONFIG_GPIO_PCA953X_IRQ=y +CONFIG_GPIO_PCF857X=y +CONFIG_GPIO_TWL4030=y +CONFIG_GPIO_PALMAS=y +CONFIG_GPIO_SYSCON=y +CONFIG_GPIO_TPS6586X=y +CONFIG_GPIO_TPS65910=y +CONFIG_BATTERY_ACT8945A=y +CONFIG_BATTERY_SBS=y +CONFIG_BATTERY_MAX17040=m +CONFIG_BATTERY_MAX17042=m +CONFIG_CHARGER_MAX14577=m +CONFIG_CHARGER_MAX77693=m +CONFIG_CHARGER_MAX8997=m +CONFIG_CHARGER_MAX8998=m +CONFIG_CHARGER_TPS65090=y +CONFIG_AXP20X_POWER=m +CONFIG_POWER_RESET_AS3722=y +CONFIG_POWER_RESET_GPIO=y +CONFIG_POWER_RESET_GPIO_RESTART=y +CONFIG_POWER_RESET_KEYSTONE=y +CONFIG_POWER_RESET_RMOBILE=y +CONFIG_POWER_RESET_ST=y +CONFIG_POWER_AVS=y +CONFIG_ROCKCHIP_IODOMAIN=y +CONFIG_SENSORS_IIO_HWMON=y +CONFIG_SENSORS_LM90=y +CONFIG_SENSORS_LM95245=y +CONFIG_SENSORS_NTC_THERMISTOR=m +CONFIG_SENSORS_PWM_FAN=m +CONFIG_SENSORS_INA2XX=m +CONFIG_CPU_THERMAL=y +CONFIG_ROCKCHIP_THERMAL=y +CONFIG_RCAR_THERMAL=y +CONFIG_ARMADA_THERMAL=y +CONFIG_DAVINCI_WATCHDOG=m +CONFIG_EXYNOS_THERMAL=m +CONFIG_ST_THERMAL_SYSCFG=y +CONFIG_ST_THERMAL_MEMMAP=y +CONFIG_WATCHDOG=y +CONFIG_DA9063_WATCHDOG=m +CONFIG_XILINX_WATCHDOG=y +CONFIG_ARM_SP805_WATCHDOG=y +CONFIG_AT91SAM9X_WATCHDOG=y +CONFIG_SAMA5D4_WATCHDOG=y +CONFIG_ORION_WATCHDOG=y +CONFIG_ST_LPC_WATCHDOG=y +CONFIG_SUNXI_WATCHDOG=y +CONFIG_IMX2_WDT=y +CONFIG_TEGRA_WATCHDOG=m +CONFIG_MESON_WATCHDOG=y +CONFIG_DW_WATCHDOG=y +CONFIG_DIGICOLOR_WATCHDOG=y +CONFIG_BCM2835_WDT=y +CONFIG_BCM7038_WDT=m +CONFIG_BCM_KONA_WDT=y +CONFIG_MFD_ACT8945A=y +CONFIG_MFD_AS3711=y +CONFIG_MFD_AS3722=y +CONFIG_MFD_ATMEL_FLEXCOM=y +CONFIG_MFD_ATMEL_HLCDC=m +CONFIG_MFD_BCM590XX=y +CONFIG_MFD_AXP20X=y +CONFIG_MFD_AXP20X_I2C=m +CONFIG_MFD_AXP20X_RSB=m +CONFIG_MFD_CROS_EC=m +CONFIG_MFD_CROS_EC_I2C=m +CONFIG_MFD_CROS_EC_SPI=m +CONFIG_MFD_DA9063=m +CONFIG_MFD_MAX14577=y +CONFIG_MFD_MAX77686=y +CONFIG_MFD_MAX77693=m +CONFIG_MFD_MAX8907=y +CONFIG_MFD_MAX8997=y +CONFIG_MFD_MAX8998=y +CONFIG_MFD_RK808=y +CONFIG_MFD_PM8921_CORE=y +CONFIG_MFD_QCOM_RPM=y +CONFIG_MFD_SPMI_PMIC=y +CONFIG_MFD_SEC_CORE=y +CONFIG_MFD_STMPE=y +CONFIG_MFD_PALMAS=y +CONFIG_MFD_TPS65090=y +CONFIG_MFD_TPS65217=y +CONFIG_MFD_TPS65218=y +CONFIG_MFD_TPS6586X=y +CONFIG_MFD_TPS65910=y +CONFIG_REGULATOR_ACT8945A=y +CONFIG_REGULATOR_AB8500=y +CONFIG_REGULATOR_ACT8865=y +CONFIG_REGULATOR_ANATOP=y +CONFIG_REGULATOR_AS3711=y +CONFIG_REGULATOR_AS3722=y +CONFIG_REGULATOR_AXP20X=m +CONFIG_REGULATOR_BCM590XX=y +CONFIG_REGULATOR_DA9210=y +CONFIG_REGULATOR_FAN53555=y +CONFIG_REGULATOR_RK808=y +CONFIG_REGULATOR_GPIO=y +CONFIG_MFD_SYSCON=y +CONFIG_POWER_RESET_SYSCON=y +CONFIG_REGULATOR_LP872X=y +CONFIG_REGULATOR_MAX14577=m +CONFIG_REGULATOR_MAX8907=y +CONFIG_REGULATOR_MAX8973=y +CONFIG_REGULATOR_MAX8997=m +CONFIG_REGULATOR_MAX8998=m +CONFIG_REGULATOR_MAX77686=y +CONFIG_REGULATOR_MAX77693=m +CONFIG_REGULATOR_MAX77802=m +CONFIG_REGULATOR_PALMAS=y +CONFIG_REGULATOR_PBIAS=y +CONFIG_REGULATOR_PWM=y +CONFIG_REGULATOR_QCOM_RPM=y +CONFIG_REGULATOR_QCOM_SMD_RPM=y +CONFIG_REGULATOR_S2MPS11=y +CONFIG_REGULATOR_S5M8767=y +CONFIG_REGULATOR_TI_ABB=y +CONFIG_REGULATOR_TPS51632=y +CONFIG_REGULATOR_TPS62360=y +CONFIG_REGULATOR_TPS65090=y +CONFIG_REGULATOR_TPS65217=y +CONFIG_REGULATOR_TPS65218=y +CONFIG_REGULATOR_TPS6586X=y +CONFIG_REGULATOR_TPS65910=y +CONFIG_REGULATOR_TWL4030=y +CONFIG_REGULATOR_VEXPRESS=y +CONFIG_REGULATOR_WM8994=m +CONFIG_MEDIA_SUPPORT=m +CONFIG_MEDIA_CAMERA_SUPPORT=y +CONFIG_MEDIA_CONTROLLER=y +CONFIG_VIDEO_V4L2_SUBDEV_API=y +CONFIG_MEDIA_USB_SUPPORT=y +CONFIG_USB_VIDEO_CLASS=y +CONFIG_USB_GSPCA=y +CONFIG_V4L_PLATFORM_DRIVERS=y +CONFIG_SOC_CAMERA=m +CONFIG_SOC_CAMERA_PLATFORM=m +CONFIG_VIDEO_RCAR_VIN=m +CONFIG_VIDEO_ATMEL_ISI=m +CONFIG_VIDEO_SAMSUNG_EXYNOS4_IS=m +CONFIG_VIDEO_S5P_FIMC=m +CONFIG_VIDEO_S5P_MIPI_CSIS=m +CONFIG_VIDEO_EXYNOS_FIMC_LITE=m +CONFIG_VIDEO_EXYNOS4_FIMC_IS=m +CONFIG_V4L_MEM2MEM_DRIVERS=y +CONFIG_VIDEO_SAMSUNG_S5P_JPEG=m +CONFIG_VIDEO_SAMSUNG_S5P_MFC=m +CONFIG_VIDEO_STI_BDISP=m +CONFIG_VIDEO_RENESAS_JPU=m +CONFIG_VIDEO_RENESAS_VSP1=m +CONFIG_V4L_TEST_DRIVERS=y +# CONFIG_MEDIA_SUBDRV_AUTOSELECT is not set +CONFIG_VIDEO_ADV7180=m +CONFIG_VIDEO_ML86V7667=m +CONFIG_DRM=y +CONFIG_DRM_I2C_ADV7511=m +# CONFIG_DRM_I2C_CH7006 is not set +# CONFIG_DRM_I2C_SIL164 is not set +CONFIG_DRM_NXP_PTN3460=m +CONFIG_DRM_PARADE_PS8622=m +CONFIG_DRM_NOUVEAU=m +CONFIG_DRM_EXYNOS=m +CONFIG_DRM_EXYNOS_FIMD=y +CONFIG_DRM_EXYNOS_MIXER=y +CONFIG_DRM_EXYNOS_DPI=y +CONFIG_DRM_EXYNOS_DSI=y +CONFIG_DRM_EXYNOS_HDMI=y +CONFIG_DRM_ROCKCHIP=m +CONFIG_ROCKCHIP_ANALOGIX_DP=m +CONFIG_ROCKCHIP_DW_HDMI=m +CONFIG_ROCKCHIP_DW_MIPI_DSI=m +CONFIG_ROCKCHIP_INNO_HDMI=m +CONFIG_DRM_ATMEL_HLCDC=m +CONFIG_DRM_RCAR_DU=m +CONFIG_DRM_RCAR_HDMI=y +CONFIG_DRM_RCAR_LVDS=y +CONFIG_DRM_SUN4I=m +CONFIG_DRM_TEGRA=y +CONFIG_DRM_PANEL_SAMSUNG_LD9040=m +CONFIG_DRM_PANEL_SAMSUNG_S6E8AA0=m +CONFIG_DRM_PANEL_SIMPLE=y +CONFIG_DRM_STI=m +CONFIG_DRM_VC4=y +CONFIG_FB_ARMCLCD=y +CONFIG_FB_EFI=y +CONFIG_FB_WM8505=y +CONFIG_FB_SH_MOBILE_LCDC=y +CONFIG_FB_SIMPLE=y +CONFIG_FB_SH_MOBILE_MERAM=y +CONFIG_BACKLIGHT_LCD_SUPPORT=y +CONFIG_BACKLIGHT_CLASS_DEVICE=y +CONFIG_LCD_PLATFORM=m +CONFIG_BACKLIGHT_PWM=y +CONFIG_BACKLIGHT_AS3711=y +CONFIG_FRAMEBUFFER_CONSOLE=y +CONFIG_FRAMEBUFFER_CONSOLE_ROTATION=y +CONFIG_SOUND=m +CONFIG_SND=m +CONFIG_SND_DYNAMIC_MINORS=y +CONFIG_SND_HDA_TEGRA=m +CONFIG_SND_HDA_INPUT_BEEP=y +CONFIG_SND_HDA_PATCH_LOADER=y +CONFIG_SND_HDA_CODEC_REALTEK=m +CONFIG_SND_HDA_CODEC_HDMI=m +CONFIG_SND_USB_AUDIO=m +CONFIG_SND_SOC=m +CONFIG_SND_ATMEL_SOC=m +CONFIG_SND_ATMEL_SOC_WM8904=m +CONFIG_SND_ATMEL_SOC_PDMIC=m +CONFIG_SND_BCM2835_SOC_I2S=m +CONFIG_SND_SOC_FSL_SAI=m +CONFIG_SND_SOC_ROCKCHIP=m +CONFIG_SND_SOC_ROCKCHIP_SPDIF=m +CONFIG_SND_SOC_ROCKCHIP_MAX98090=m +CONFIG_SND_SOC_ROCKCHIP_RT5645=m +CONFIG_SND_SOC_SAMSUNG=m +CONFIG_SND_SOC_SAMSUNG_SMDK_WM8994=m +CONFIG_SND_SOC_SMDK_WM8994_PCM=m +CONFIG_SND_SOC_SNOW=m +CONFIG_SND_SOC_SH4_FSI=m +CONFIG_SND_SOC_RCAR=m +CONFIG_SND_SOC_RSRC_CARD=m +CONFIG_SND_SUN4I_CODEC=m +CONFIG_SND_SOC_TEGRA=m +CONFIG_SND_SOC_TEGRA_RT5640=m +CONFIG_SND_SOC_TEGRA_WM8753=m +CONFIG_SND_SOC_TEGRA_WM8903=m +CONFIG_SND_SOC_TEGRA_WM9712=m +CONFIG_SND_SOC_TEGRA_TRIMSLICE=m +CONFIG_SND_SOC_TEGRA_ALC5632=m +CONFIG_SND_SOC_TEGRA_MAX98090=m +CONFIG_SND_SOC_AK4642=m +CONFIG_SND_SOC_SGTL5000=m +CONFIG_SND_SOC_SPDIF=m +CONFIG_SND_SOC_WM8978=m +CONFIG_USB=y +CONFIG_USB_XHCI_HCD=y +CONFIG_USB_XHCI_MVEBU=y +CONFIG_USB_XHCI_RCAR=m +CONFIG_USB_XHCI_TEGRA=m +CONFIG_USB_EHCI_HCD=y +CONFIG_USB_EHCI_MSM=m +CONFIG_USB_EHCI_EXYNOS=y +CONFIG_USB_EHCI_TEGRA=y +CONFIG_USB_EHCI_HCD_STI=y +CONFIG_USB_EHCI_HCD_PLATFORM=y +CONFIG_USB_ISP1760=y +CONFIG_USB_OHCI_HCD=y +CONFIG_USB_OHCI_HCD_STI=y +CONFIG_USB_OHCI_HCD_PLATFORM=y +CONFIG_USB_OHCI_EXYNOS=m +CONFIG_USB_R8A66597_HCD=m +CONFIG_USB_RENESAS_USBHS=m +CONFIG_USB_STORAGE=y +CONFIG_USB_MUSB_HDRC=m +CONFIG_USB_MUSB_SUNXI=m +CONFIG_USB_DWC3=y +CONFIG_USB_DWC2=y +CONFIG_USB_CHIPIDEA=y +CONFIG_USB_CHIPIDEA_UDC=y +CONFIG_USB_CHIPIDEA_HOST=y +CONFIG_AB8500_USB=y +CONFIG_KEYSTONE_USB_PHY=y +CONFIG_OMAP_USB3=y +CONFIG_USB_GPIO_VBUS=y +CONFIG_USB_ISP1301=y +CONFIG_USB_MSM_OTG=m +CONFIG_USB_MXS_PHY=y +CONFIG_USB_GADGET=y +CONFIG_USB_FSL_USB2=y +CONFIG_USB_RENESAS_USBHS_UDC=m +CONFIG_USB_ETH=m +CONFIG_MMC=y +CONFIG_MMC_BLOCK_MINORS=16 +CONFIG_MMC_ARMMMCI=y +CONFIG_MMC_SDHCI=y +CONFIG_MMC_SDHCI_PLTFM=y +CONFIG_MMC_SDHCI_OF_ARASAN=y +CONFIG_MMC_SDHCI_OF_AT91=y +CONFIG_MMC_SDHCI_OF_ESDHC=m +CONFIG_MMC_SDHCI_ESDHC_IMX=y +CONFIG_MMC_SDHCI_DOVE=y +CONFIG_MMC_SDHCI_TEGRA=y +CONFIG_MMC_SDHCI_PXAV3=y +CONFIG_MMC_SDHCI_SPEAR=y +CONFIG_MMC_SDHCI_S3C=y +CONFIG_MMC_SDHCI_S3C_DMA=y +CONFIG_MMC_SDHCI_BCM_KONA=y +CONFIG_MMC_SDHCI_ST=y +CONFIG_MMC_OMAP=y +CONFIG_MMC_OMAP_HS=y +CONFIG_MMC_ATMELMCI=y +CONFIG_MMC_SDHCI_MSM=y +CONFIG_MMC_MVSDIO=y +CONFIG_MMC_SDHI=y +CONFIG_MMC_DW=y +CONFIG_MMC_DW_IDMAC=y +CONFIG_MMC_DW_PLTFM=y +CONFIG_MMC_DW_EXYNOS=y +CONFIG_MMC_DW_ROCKCHIP=y +CONFIG_MMC_SH_MMCIF=y +CONFIG_MMC_SUNXI=y +CONFIG_NEW_LEDS=y +CONFIG_LEDS_CLASS=y +CONFIG_LEDS_CLASS_FLASH=m +CONFIG_LEDS_GPIO=y +CONFIG_LEDS_PWM=y +CONFIG_LEDS_MAX77693=m +CONFIG_LEDS_MAX8997=m +CONFIG_LEDS_TRIGGERS=y +CONFIG_LEDS_TRIGGER_TIMER=y +CONFIG_LEDS_TRIGGER_ONESHOT=y +CONFIG_LEDS_TRIGGER_HEARTBEAT=y +CONFIG_LEDS_TRIGGER_BACKLIGHT=y +CONFIG_LEDS_TRIGGER_CPU=y +CONFIG_LEDS_TRIGGER_GPIO=y +CONFIG_LEDS_TRIGGER_DEFAULT_ON=y +CONFIG_LEDS_TRIGGER_TRANSIENT=y +CONFIG_LEDS_TRIGGER_CAMERA=y +CONFIG_EDAC=y +CONFIG_EDAC_MM_EDAC=y +CONFIG_EDAC_HIGHBANK_MC=y +CONFIG_EDAC_HIGHBANK_L2=y +CONFIG_RTC_CLASS=y +CONFIG_RTC_DRV_AS3722=y +CONFIG_RTC_DRV_DS1307=y +CONFIG_RTC_DRV_HYM8563=m +CONFIG_RTC_DRV_MAX8907=y +CONFIG_RTC_DRV_MAX8998=m +CONFIG_RTC_DRV_MAX8997=m +CONFIG_RTC_DRV_MAX77686=y +CONFIG_RTC_DRV_RK808=m +CONFIG_RTC_DRV_RS5C372=m +CONFIG_RTC_DRV_PALMAS=y +CONFIG_RTC_DRV_ST_LPC=y +CONFIG_RTC_DRV_TWL4030=y +CONFIG_RTC_DRV_TPS6586X=y +CONFIG_RTC_DRV_TPS65910=y +CONFIG_RTC_DRV_S35390A=m +CONFIG_RTC_DRV_RX8581=m +CONFIG_RTC_DRV_EM3027=y +CONFIG_RTC_DRV_DA9063=m +CONFIG_RTC_DRV_EFI=m +CONFIG_RTC_DRV_DIGICOLOR=m +CONFIG_RTC_DRV_S5M=m +CONFIG_RTC_DRV_S3C=m +CONFIG_RTC_DRV_PL031=y +CONFIG_RTC_DRV_AT91RM9200=m +CONFIG_RTC_DRV_AT91SAM9=m +CONFIG_RTC_DRV_VT8500=y +CONFIG_RTC_DRV_SUN6I=y +CONFIG_RTC_DRV_SUNXI=y +CONFIG_RTC_DRV_MV=y +CONFIG_RTC_DRV_TEGRA=y +CONFIG_DMADEVICES=y +CONFIG_DW_DMAC=y +CONFIG_AT_HDMAC=y +CONFIG_AT_XDMAC=y +CONFIG_FSL_EDMA=y +CONFIG_MV_XOR=y +CONFIG_TEGRA20_APB_DMA=y +CONFIG_SH_DMAE=y +CONFIG_RCAR_DMAC=y +CONFIG_RENESAS_USB_DMAC=m +CONFIG_STE_DMA40=y +CONFIG_SIRF_DMA=y +CONFIG_TI_EDMA=y +CONFIG_PL330_DMA=y +CONFIG_IMX_SDMA=y +CONFIG_IMX_DMA=y +CONFIG_MXS_DMA=y +CONFIG_DMA_BCM2835=y +CONFIG_DMA_OMAP=y +CONFIG_QCOM_BAM_DMA=y +CONFIG_XILINX_DMA=y +CONFIG_DMA_SUN6I=y +CONFIG_STAGING=y +CONFIG_SENSORS_ISL29018=y +CONFIG_SENSORS_ISL29028=y +CONFIG_MFD_NVEC=y +CONFIG_KEYBOARD_NVEC=y +CONFIG_SERIO_NVEC_PS2=y +CONFIG_NVEC_POWER=y +CONFIG_NVEC_PAZ00=y +CONFIG_QCOM_GSBI=y +CONFIG_QCOM_PM=y +CONFIG_QCOM_SMEM=y +CONFIG_QCOM_SMD=y +CONFIG_QCOM_SMD_RPM=y +CONFIG_QCOM_SMP2P=y +CONFIG_QCOM_SMSM=y +CONFIG_QCOM_WCNSS_CTRL=m +CONFIG_ROCKCHIP_PM_DOMAINS=y +CONFIG_COMMON_CLK_QCOM=y +CONFIG_CHROME_PLATFORMS=y +CONFIG_STAGING_BOARD=y +CONFIG_CROS_EC_CHARDEV=m +CONFIG_COMMON_CLK_MAX77686=y +CONFIG_COMMON_CLK_MAX77802=m +CONFIG_COMMON_CLK_RK808=m +CONFIG_COMMON_CLK_S2MPS11=m +CONFIG_APQ_MMCC_8084=y +CONFIG_MSM_GCC_8660=y +CONFIG_MSM_MMCC_8960=y +CONFIG_MSM_MMCC_8974=y +CONFIG_HWSPINLOCK_QCOM=y +CONFIG_ROCKCHIP_IOMMU=y +CONFIG_TEGRA_IOMMU_GART=y +CONFIG_TEGRA_IOMMU_SMMU=y +CONFIG_PM_DEVFREQ=y +CONFIG_ARM_TEGRA_DEVFREQ=m +CONFIG_MEMORY=y +CONFIG_EXTCON=y +CONFIG_TI_AEMIF=y +CONFIG_IIO=y +CONFIG_AT91_ADC=m +CONFIG_AT91_SAMA5D2_ADC=m +CONFIG_BERLIN2_ADC=m +CONFIG_EXYNOS_ADC=m +CONFIG_VF610_ADC=m +CONFIG_XILINX_XADC=y +CONFIG_CM36651=m +CONFIG_AK8975=y +CONFIG_RASPBERRYPI_POWER=y +CONFIG_PWM=y +CONFIG_PWM_ATMEL=m +CONFIG_PWM_ATMEL_HLCDC_PWM=m +CONFIG_PWM_ATMEL_TCB=m +CONFIG_PWM_FSL_FTM=m +CONFIG_PWM_RENESAS_TPU=y +CONFIG_PWM_ROCKCHIP=m +CONFIG_PWM_SAMSUNG=m +CONFIG_PWM_SUN4I=y +CONFIG_PWM_TEGRA=y +CONFIG_PWM_VT8500=y +CONFIG_PHY_HIX5HD2_SATA=y +CONFIG_E1000E=y +CONFIG_PWM_STI=y +CONFIG_PWM_BCM2835=y +CONFIG_PWM_BRCMSTB=m +CONFIG_OMAP_USB2=y +CONFIG_TI_PIPE3=y +CONFIG_PHY_BERLIN_USB=y +CONFIG_PHY_BERLIN_SATA=y +CONFIG_PHY_ROCKCHIP_DP=m +CONFIG_PHY_ROCKCHIP_USB=m +CONFIG_PHY_QCOM_APQ8064_SATA=m +CONFIG_PHY_MIPHY28LP=y +CONFIG_PHY_MIPHY365X=y +CONFIG_PHY_RCAR_GEN2=m +CONFIG_PHY_STIH41X_USB=y +CONFIG_PHY_STIH407_USB=y +CONFIG_PHY_SUN4I_USB=y +CONFIG_PHY_SUN9I_USB=y +CONFIG_PHY_SAMSUNG_USB2=m +CONFIG_PHY_TEGRA_XUSB=y +CONFIG_PHY_BRCM_SATA=y +CONFIG_NVMEM=y +CONFIG_NVMEM_SUNXI_SID=y +CONFIG_BCM2835_MBOX=y +CONFIG_RASPBERRYPI_FIRMWARE=y +CONFIG_EFI_VARS=m +CONFIG_EFI_CAPSULE_LOADER=m +CONFIG_EXT4_FS=y +CONFIG_AUTOFS4_FS=y +CONFIG_MSDOS_FS=y +CONFIG_VFAT_FS=y +CONFIG_NTFS_FS=y +CONFIG_TMPFS_POSIX_ACL=y +CONFIG_UBIFS_FS=y +CONFIG_TMPFS=y +CONFIG_SQUASHFS=y +CONFIG_SQUASHFS_LZO=y +CONFIG_SQUASHFS_XZ=y +CONFIG_NFS_FS=y +CONFIG_NFS_V3_ACL=y +CONFIG_NFS_V4=y +CONFIG_ROOT_NFS=y +CONFIG_NLS_CODEPAGE_437=y +CONFIG_NLS_ISO8859_1=y +CONFIG_NLS_UTF8=y +CONFIG_PRINTK_TIME=y +CONFIG_DEBUG_FS=y +CONFIG_MAGIC_SYSRQ=y +CONFIG_LOCKUP_DETECTOR=y +CONFIG_CRYPTO_DEV_TEGRA_AES=y +CONFIG_CPUFREQ_DT=y +CONFIG_KEYSTONE_IRQ=y +CONFIG_HW_RANDOM=y +CONFIG_HW_RANDOM_ST=y +CONFIG_CRYPTO_DEV_MARVELL_CESA=m +CONFIG_CRYPTO_DEV_S5P=m +CONFIG_CRYPTO_DEV_SUN4I_SS=m +CONFIG_CRYPTO_DEV_ROCKCHIP=m +CONFIG_ARM_CRYPTO=y +CONFIG_CRYPTO_SHA1_ARM=m +CONFIG_CRYPTO_SHA1_ARM_NEON=m +CONFIG_CRYPTO_SHA1_ARM_CE=m +CONFIG_CRYPTO_SHA2_ARM_CE=m +CONFIG_CRYPTO_SHA256_ARM=m +CONFIG_CRYPTO_SHA512_ARM=m +CONFIG_CRYPTO_AES_ARM=m +CONFIG_CRYPTO_AES_ARM_BS=m +CONFIG_CRYPTO_AES_ARM_CE=m +CONFIG_CRYPTO_GHASH_ARM_CE=m +CONFIG_CRYPTO_DEV_ATMEL_AES=m +CONFIG_CRYPTO_DEV_ATMEL_TDES=m +CONFIG_CRYPTO_DEV_ATMEL_SHA=m +CONFIG_VIDEO_VIVID=m +CONFIG_VIRTIO=y +CONFIG_VIRTIO_PCI=y +CONFIG_VIRTIO_PCI_LEGACY=y +CONFIG_VIRTIO_MMIO=y +CONFIG_TEE=y +CONFIG_OPTEE=y + diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig index f169eea2af5b..9385771f31d9 100644 --- a/arch/arm64/Kconfig +++ b/arch/arm64/Kconfig @@ -714,6 +714,17 @@ config KEXEC but it is independent of the system firmware. And like a reboot you can start any kernel with it, not just Linux. +config CRASH_DUMP + bool "Build kdump crash kernel" + help + Generate crash dump after being started by kexec. This should + be normally only set in special crash dump kernels which are + loaded in the main kernel with kexec-tools into a specially + reserved region and then later executed after a crash by + kdump/kexec. + + For more details see Documentation/kdump/kdump.txt + config XEN_DOM0 def_bool y depends on XEN diff --git a/arch/arm64/configs/defconfig b/arch/arm64/configs/defconfig index dab2cb0c1f1c..24922c9c73b8 100644 --- a/arch/arm64/configs/defconfig +++ b/arch/arm64/configs/defconfig @@ -79,6 +79,7 @@ CONFIG_CMA=y CONFIG_SECCOMP=y CONFIG_XEN=y CONFIG_KEXEC=y +CONFIG_CRASH_DUMP=y # CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS is not set CONFIG_COMPAT=y CONFIG_CPU_IDLE=y diff --git a/arch/arm64/configs/lsk_defconfig b/arch/arm64/configs/lsk_defconfig new file mode 100644 index 000000000000..28089d2d651b --- /dev/null +++ b/arch/arm64/configs/lsk_defconfig @@ -0,0 +1,468 @@ +CONFIG_SYSVIPC=y +CONFIG_POSIX_MQUEUE=y +CONFIG_AUDIT=y +CONFIG_NO_HZ_IDLE=y +CONFIG_HIGH_RES_TIMERS=y +CONFIG_BSD_PROCESS_ACCT=y +CONFIG_BSD_PROCESS_ACCT_V3=y +CONFIG_TASKSTATS=y +CONFIG_TASK_DELAY_ACCT=y +CONFIG_TASK_XACCT=y +CONFIG_TASK_IO_ACCOUNTING=y +CONFIG_IKCONFIG=y +CONFIG_IKCONFIG_PROC=y +CONFIG_LOG_BUF_SHIFT=14 +CONFIG_MEMCG=y +CONFIG_MEMCG_SWAP=y +CONFIG_BLK_CGROUP=y +CONFIG_CGROUP_PIDS=y +CONFIG_CGROUP_HUGETLB=y +CONFIG_CPUSETS=y +CONFIG_CGROUP_DEVICE=y +CONFIG_CGROUP_CPUACCT=y +CONFIG_CGROUP_PERF=y +CONFIG_USER_NS=y +CONFIG_SCHED_AUTOGROUP=y +CONFIG_BLK_DEV_INITRD=y +CONFIG_KALLSYMS_ALL=y +# CONFIG_COMPAT_BRK is not set +CONFIG_PROFILING=y +CONFIG_JUMP_LABEL=y +CONFIG_MODULES=y +CONFIG_MODULE_UNLOAD=y +# CONFIG_BLK_DEV_BSG is not set +# CONFIG_IOSCHED_DEADLINE is not set +CONFIG_ARCH_SUNXI=y +CONFIG_ARCH_ALPINE=y +CONFIG_ARCH_BCM_IPROC=y +CONFIG_ARCH_BERLIN=y +CONFIG_ARCH_EXYNOS=y +CONFIG_ARCH_LAYERSCAPE=y +CONFIG_ARCH_LG1K=y +CONFIG_ARCH_HISI=y +CONFIG_ARCH_MEDIATEK=y +CONFIG_ARCH_MESON=y +CONFIG_ARCH_MVEBU=y +CONFIG_ARCH_QCOM=y +CONFIG_ARCH_ROCKCHIP=y +CONFIG_ARCH_SEATTLE=y +CONFIG_ARCH_RENESAS=y +CONFIG_ARCH_R8A7795=y +CONFIG_ARCH_R8A7796=y +CONFIG_ARCH_STRATIX10=y +CONFIG_ARCH_TEGRA=y +CONFIG_ARCH_SPRD=y +CONFIG_ARCH_THUNDER=y +CONFIG_ARCH_UNIPHIER=y +CONFIG_ARCH_VEXPRESS=y +CONFIG_ARCH_VULCAN=y +CONFIG_ARCH_XGENE=y +CONFIG_ARCH_ZX=y +CONFIG_ARCH_ZYNQMP=y +CONFIG_PCI=y +CONFIG_PCI_MSI=y +CONFIG_PCI_IOV=y +CONFIG_PCI_AARDVARK=y +CONFIG_PCIE_RCAR=y +CONFIG_PCI_HOST_GENERIC=y +CONFIG_PCI_XGENE=y +CONFIG_PCI_LAYERSCAPE=y +CONFIG_PCI_HISI=y +CONFIG_PCIE_QCOM=y +CONFIG_PCIE_ARMADA_8K=y +CONFIG_ARM64_VA_BITS_48=y +CONFIG_SCHED_MC=y +CONFIG_PREEMPT=y +CONFIG_KSM=y +CONFIG_TRANSPARENT_HUGEPAGE=y +CONFIG_CMA=y +CONFIG_SECCOMP=y +CONFIG_XEN=y +CONFIG_KEXEC=y +CONFIG_CRASH_DUMP=y +# CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS is not set +CONFIG_COMPAT=y +CONFIG_CPU_IDLE=y +CONFIG_ARM_CPUIDLE=y +CONFIG_CPU_FREQ=y +CONFIG_CPUFREQ_DT=y +CONFIG_ARM_BIG_LITTLE_CPUFREQ=y +CONFIG_ARM_SCPI_CPUFREQ=y +CONFIG_NET=y +CONFIG_PACKET=y +CONFIG_UNIX=y +CONFIG_INET=y +CONFIG_IP_MULTICAST=y +CONFIG_IP_PNP=y +CONFIG_IP_PNP_DHCP=y +CONFIG_IP_PNP_BOOTP=y +CONFIG_IPV6=m +CONFIG_NETFILTER=y +CONFIG_NF_CONNTRACK=m +CONFIG_NF_CONNTRACK_EVENTS=y +CONFIG_NETFILTER_XT_TARGET_CHECKSUM=m +CONFIG_NETFILTER_XT_TARGET_LOG=m +CONFIG_NETFILTER_XT_MATCH_ADDRTYPE=m +CONFIG_NETFILTER_XT_MATCH_CONNTRACK=m +CONFIG_NF_CONNTRACK_IPV4=m +CONFIG_IP_NF_IPTABLES=m +CONFIG_IP_NF_FILTER=m +CONFIG_IP_NF_TARGET_REJECT=m +CONFIG_IP_NF_NAT=m +CONFIG_IP_NF_TARGET_MASQUERADE=m +CONFIG_IP_NF_MANGLE=m +CONFIG_NF_CONNTRACK_IPV6=m +CONFIG_IP6_NF_IPTABLES=m +CONFIG_IP6_NF_FILTER=m +CONFIG_IP6_NF_TARGET_REJECT=m +CONFIG_IP6_NF_MANGLE=m +CONFIG_IP6_NF_NAT=m +CONFIG_IP6_NF_TARGET_MASQUERADE=m +CONFIG_BRIDGE=m +CONFIG_BRIDGE_VLAN_FILTERING=y +CONFIG_VLAN_8021Q=m +CONFIG_VLAN_8021Q_GVRP=y +CONFIG_VLAN_8021Q_MVRP=y +CONFIG_BPF_JIT=y +CONFIG_BT=m +CONFIG_BT_HIDP=m +# CONFIG_BT_HS is not set +# CONFIG_BT_LE is not set +CONFIG_BT_LEDS=y +# CONFIG_BT_DEBUGFS is not set +CONFIG_BT_HCIUART=m +CONFIG_BT_HCIUART_LL=y +CONFIG_CFG80211=m +CONFIG_MAC80211=m +CONFIG_MAC80211_LEDS=y +CONFIG_RFKILL=m +CONFIG_NET_9P=y +CONFIG_NET_9P_VIRTIO=y +CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" +CONFIG_DEVTMPFS=y +CONFIG_DEVTMPFS_MOUNT=y +CONFIG_DMA_CMA=y +CONFIG_MTD=y +CONFIG_MTD_M25P80=y +CONFIG_MTD_SPI_NOR=y +CONFIG_BLK_DEV_LOOP=y +CONFIG_BLK_DEV_NBD=m +CONFIG_VIRTIO_BLK=y +CONFIG_SRAM=y +# CONFIG_SCSI_PROC_FS is not set +CONFIG_BLK_DEV_SD=y +CONFIG_SCSI_SAS_ATA=y +CONFIG_SCSI_HISI_SAS=y +CONFIG_ATA=y +CONFIG_SATA_AHCI=y +CONFIG_SATA_AHCI_PLATFORM=y +CONFIG_AHCI_CEVA=y +CONFIG_AHCI_MVEBU=y +CONFIG_AHCI_XGENE=y +CONFIG_AHCI_QORIQ=y +CONFIG_SATA_RCAR=y +CONFIG_SATA_SIL24=y +CONFIG_PATA_PLATFORM=y +CONFIG_PATA_OF_PLATFORM=y +CONFIG_NETDEVICES=y +CONFIG_MACVLAN=m +CONFIG_MACVTAP=m +CONFIG_TUN=y +CONFIG_VETH=m +CONFIG_VIRTIO_NET=y +CONFIG_AMD_XGBE=y +CONFIG_NET_XGENE=y +CONFIG_MACB=y +CONFIG_HNS_DSAF=y +CONFIG_HNS_ENET=y +CONFIG_E1000E=y +CONFIG_IGB=y +CONFIG_IGBVF=y +CONFIG_SKY2=y +CONFIG_RAVB=y +CONFIG_SMC91X=y +CONFIG_SMSC911X=y +CONFIG_STMMAC_ETH=m +CONFIG_REALTEK_PHY=m +CONFIG_MICREL_PHY=y +CONFIG_USB_PEGASUS=m +CONFIG_USB_RTL8150=m +CONFIG_USB_RTL8152=m +CONFIG_USB_USBNET=m +CONFIG_USB_NET_DM9601=m +CONFIG_USB_NET_SR9800=m +CONFIG_USB_NET_SMSC75XX=m +CONFIG_USB_NET_SMSC95XX=m +CONFIG_USB_NET_PLUSB=m +CONFIG_USB_NET_MCS7830=m +CONFIG_WL18XX=m +CONFIG_WLCORE_SDIO=m +CONFIG_INPUT_EVDEV=y +CONFIG_KEYBOARD_GPIO=y +CONFIG_INPUT_MISC=y +CONFIG_INPUT_PM8941_PWRKEY=y +CONFIG_INPUT_HISI_POWERKEY=y +# CONFIG_SERIO_SERPORT is not set +CONFIG_SERIO_AMBAKMI=y +CONFIG_LEGACY_PTY_COUNT=16 +CONFIG_SERIAL_8250=y +CONFIG_SERIAL_8250_CONSOLE=y +CONFIG_SERIAL_8250_DW=y +CONFIG_SERIAL_8250_MT6577=y +CONFIG_SERIAL_8250_UNIPHIER=y +CONFIG_SERIAL_OF_PLATFORM=y +CONFIG_SERIAL_AMBA_PL011=y +CONFIG_SERIAL_AMBA_PL011_CONSOLE=y +CONFIG_SERIAL_SAMSUNG=y +CONFIG_SERIAL_SAMSUNG_CONSOLE=y +CONFIG_SERIAL_TEGRA=y +CONFIG_SERIAL_SH_SCI=y +CONFIG_SERIAL_SH_SCI_NR_UARTS=11 +CONFIG_SERIAL_SH_SCI_CONSOLE=y +CONFIG_SERIAL_MESON=y +CONFIG_SERIAL_MESON_CONSOLE=y +CONFIG_SERIAL_MSM=y +CONFIG_SERIAL_MSM_CONSOLE=y +CONFIG_SERIAL_XILINX_PS_UART=y +CONFIG_SERIAL_XILINX_PS_UART_CONSOLE=y +CONFIG_SERIAL_MVEBU_UART=y +CONFIG_VIRTIO_CONSOLE=y +CONFIG_I2C_CHARDEV=y +CONFIG_I2C_MUX=y +CONFIG_I2C_MUX_PCA954x=y +CONFIG_I2C_DESIGNWARE_PLATFORM=y +CONFIG_I2C_IMX=y +CONFIG_I2C_MESON=y +CONFIG_I2C_MV64XXX=y +CONFIG_I2C_QUP=y +CONFIG_I2C_TEGRA=y +CONFIG_I2C_UNIPHIER_F=y +CONFIG_I2C_RCAR=y +CONFIG_I2C_CROS_EC_TUNNEL=y +CONFIG_SPI=y +CONFIG_SPI_MESON_SPIFC=m +CONFIG_SPI_ORION=y +CONFIG_SPI_PL022=y +CONFIG_SPI_QUP=y +CONFIG_SPI_SPIDEV=m +CONFIG_SPI_S3C64XX=y +CONFIG_SPMI=y +CONFIG_PINCTRL_SINGLE=y +CONFIG_PINCTRL_MAX77620=y +CONFIG_PINCTRL_MSM8916=y +CONFIG_PINCTRL_MSM8996=y +CONFIG_PINCTRL_QDF2XXX=y +CONFIG_PINCTRL_QCOM_SPMI_PMIC=y +CONFIG_GPIO_SYSFS=y +CONFIG_GPIO_DWAPB=y +CONFIG_GPIO_PL061=y +CONFIG_GPIO_RCAR=y +CONFIG_GPIO_XGENE=y +CONFIG_GPIO_PCA953X=y +CONFIG_GPIO_PCA953X_IRQ=y +CONFIG_GPIO_MAX77620=y +CONFIG_POWER_RESET_MSM=y +CONFIG_BATTERY_BQ27XXX=y +CONFIG_POWER_RESET_XGENE=y +CONFIG_POWER_RESET_SYSCON=y +CONFIG_SENSORS_LM90=m +CONFIG_SENSORS_INA2XX=m +CONFIG_SENSORS_ARM_SCPI=y +CONFIG_THERMAL=y +CONFIG_THERMAL_EMULATION=y +CONFIG_THERMAL_GOV_POWER_ALLOCATOR=y +CONFIG_CPU_THERMAL=y +CONFIG_EXYNOS_THERMAL=y +CONFIG_WATCHDOG=y +CONFIG_RENESAS_WDT=y +CONFIG_S3C2410_WATCHDOG=y +CONFIG_MESON_GXBB_WATCHDOG=m +CONFIG_MESON_WATCHDOG=m +CONFIG_MFD_MAX77620=y +CONFIG_MFD_SPMI_PMIC=y +CONFIG_MFD_SEC_CORE=y +CONFIG_MFD_HI655X_PMIC=y +CONFIG_REGULATOR=y +CONFIG_MFD_CROS_EC=y +CONFIG_MFD_CROS_EC_I2C=y +CONFIG_REGULATOR_FIXED_VOLTAGE=y +CONFIG_REGULATOR_GPIO=y +CONFIG_REGULATOR_HI655X=y +CONFIG_REGULATOR_MAX77620=y +CONFIG_REGULATOR_PWM=y +CONFIG_REGULATOR_QCOM_SMD_RPM=y +CONFIG_REGULATOR_QCOM_SPMI=y +CONFIG_REGULATOR_S2MPS11=y +CONFIG_DRM=m +CONFIG_DRM_NOUVEAU=m +CONFIG_DRM_TEGRA=m +CONFIG_DRM_PANEL_SIMPLE=m +CONFIG_DRM_I2C_ADV7511=m +CONFIG_DRM_HISI_KIRIN=m +CONFIG_FB=y +CONFIG_FB_ARMCLCD=y +CONFIG_BACKLIGHT_GENERIC=m +CONFIG_BACKLIGHT_LP855X=m +CONFIG_FRAMEBUFFER_CONSOLE=y +CONFIG_LOGO=y +# CONFIG_LOGO_LINUX_MONO is not set +# CONFIG_LOGO_LINUX_VGA16 is not set +CONFIG_SOUND=y +CONFIG_SND=y +CONFIG_SND_SOC=y +CONFIG_SND_SOC_RCAR=y +CONFIG_SND_SOC_SAMSUNG=y +CONFIG_SND_SOC_AK4613=y +CONFIG_USB=y +CONFIG_USB_OTG=y +CONFIG_USB_XHCI_HCD=y +CONFIG_USB_XHCI_PLATFORM=y +CONFIG_USB_XHCI_RCAR=y +CONFIG_USB_EHCI_EXYNOS=y +CONFIG_USB_XHCI_TEGRA=y +CONFIG_USB_EHCI_HCD=y +CONFIG_USB_EHCI_MSM=y +CONFIG_USB_EHCI_HCD_PLATFORM=y +CONFIG_USB_OHCI_EXYNOS=y +CONFIG_USB_OHCI_HCD=y +CONFIG_USB_OHCI_HCD_PLATFORM=y +CONFIG_USB_RENESAS_USBHS=m +CONFIG_USB_STORAGE=y +CONFIG_USB_DWC2=y +CONFIG_USB_DWC3=y +CONFIG_USB_CHIPIDEA=y +CONFIG_USB_CHIPIDEA_UDC=y +CONFIG_USB_CHIPIDEA_HOST=y +CONFIG_USB_ISP1760=y +CONFIG_USB_HSIC_USB3503=y +CONFIG_USB_MSM_OTG=y +CONFIG_USB_ULPI=y +CONFIG_USB_GADGET=y +CONFIG_USB_RENESAS_USBHS_UDC=m +CONFIG_MMC=y +CONFIG_MMC_BLOCK_MINORS=32 +CONFIG_MMC_ARMMMCI=y +CONFIG_MMC_SDHCI=y +CONFIG_MMC_SDHCI_ACPI=y +CONFIG_MMC_SDHCI_PLTFM=y +CONFIG_MMC_SDHCI_OF_ESDHC=y +CONFIG_MMC_SDHCI_TEGRA=y +CONFIG_MMC_SDHCI_MSM=y +CONFIG_MMC_SPI=y +CONFIG_MMC_SDHI=y +CONFIG_MMC_DW=y +CONFIG_MMC_DW_EXYNOS=y +CONFIG_MMC_DW_K3=y +CONFIG_MMC_SUNXI=y +CONFIG_NEW_LEDS=y +CONFIG_LEDS_CLASS=y +CONFIG_LEDS_GPIO=y +CONFIG_LEDS_SYSCON=y +CONFIG_LEDS_TRIGGERS=y +CONFIG_LEDS_TRIGGER_HEARTBEAT=y +CONFIG_LEDS_TRIGGER_CPU=y +CONFIG_RTC_CLASS=y +CONFIG_RTC_DRV_MAX77686=y +CONFIG_RTC_DRV_S5M=y +CONFIG_RTC_DRV_DS3232=y +CONFIG_RTC_DRV_EFI=y +CONFIG_RTC_DRV_PL031=y +CONFIG_RTC_DRV_SUN6I=y +CONFIG_RTC_DRV_TEGRA=y +CONFIG_RTC_DRV_XGENE=y +CONFIG_RTC_DRV_S3C=y +CONFIG_DMADEVICES=y +CONFIG_PL330_DMA=y +CONFIG_TEGRA20_APB_DMA=y +CONFIG_QCOM_BAM_DMA=y +CONFIG_QCOM_HIDMA_MGMT=y +CONFIG_QCOM_HIDMA=y +CONFIG_RCAR_DMAC=y +CONFIG_VFIO=y +CONFIG_VFIO_PCI=y +CONFIG_VIRTIO_PCI=y +CONFIG_VIRTIO_BALLOON=y +CONFIG_VIRTIO_MMIO=y +CONFIG_XEN_GNTDEV=y +CONFIG_XEN_GRANT_DEV_ALLOC=y +CONFIG_COMMON_CLK_SCPI=y +CONFIG_COMMON_CLK_CS2000_CP=y +CONFIG_COMMON_CLK_S2MPS11=y +CONFIG_CLK_QORIQ=y +CONFIG_COMMON_CLK_QCOM=y +CONFIG_MSM_GCC_8916=y +CONFIG_MSM_MMCC_8996=y +CONFIG_HWSPINLOCK_QCOM=y +CONFIG_MAILBOX=y +CONFIG_ARM_MHU=y +CONFIG_HI6220_MBOX=y +CONFIG_ARM_SMMU=y +CONFIG_QCOM_SMEM=y +CONFIG_QCOM_SMD=y +CONFIG_QCOM_SMD_RPM=y +CONFIG_ARCH_TEGRA_132_SOC=y +CONFIG_ARCH_TEGRA_210_SOC=y +CONFIG_EXTCON_USB_GPIO=y +CONFIG_PWM=y +CONFIG_PWM_TEGRA=m +CONFIG_COMMON_RESET_HI6220=y +CONFIG_PHY_RCAR_GEN3_USB2=y +CONFIG_PHY_HI6220_USB=y +CONFIG_PHY_XGENE=y +CONFIG_PHY_TEGRA_XUSB=y +CONFIG_ARM_SCPI_PROTOCOL=y +CONFIG_ACPI=y +CONFIG_IIO=y +CONFIG_EXYNOS_ADC=y +CONFIG_PWM_SAMSUNG=y +CONFIG_EXT2_FS=y +CONFIG_EXT3_FS=y +CONFIG_EXT4_FS_POSIX_ACL=y +CONFIG_BTRFS_FS=m +CONFIG_BTRFS_FS_POSIX_ACL=y +CONFIG_FANOTIFY=y +CONFIG_FANOTIFY_ACCESS_PERMISSIONS=y +CONFIG_QUOTA=y +CONFIG_AUTOFS4_FS=y +CONFIG_FUSE_FS=m +CONFIG_CUSE=m +CONFIG_OVERLAY_FS=m +CONFIG_VFAT_FS=y +CONFIG_TMPFS=y +CONFIG_HUGETLBFS=y +CONFIG_CONFIGFS_FS=y +CONFIG_EFIVAR_FS=y +CONFIG_SQUASHFS=y +CONFIG_NFS_FS=y +CONFIG_NFS_V4=y +CONFIG_NFS_V4_1=y +CONFIG_NFS_V4_2=y +CONFIG_ROOT_NFS=y +CONFIG_9P_FS=y +CONFIG_NLS_CODEPAGE_437=y +CONFIG_NLS_ISO8859_1=y +CONFIG_VIRTUALIZATION=y +CONFIG_KVM=y +CONFIG_PRINTK_TIME=y +CONFIG_DEBUG_INFO=y +CONFIG_DEBUG_FS=y +CONFIG_MAGIC_SYSRQ=y +CONFIG_DEBUG_KERNEL=y +CONFIG_LOCKUP_DETECTOR=y +# CONFIG_SCHED_DEBUG is not set +# CONFIG_DEBUG_PREEMPT is not set +# CONFIG_FTRACE is not set +CONFIG_MEMTEST=y +CONFIG_SECURITY=y +CONFIG_CRYPTO_ECHAINIV=y +CONFIG_CRYPTO_ANSI_CPRNG=y +CONFIG_ARM64_CRYPTO=y +CONFIG_CRYPTO_SHA1_ARM64_CE=y +CONFIG_CRYPTO_SHA2_ARM64_CE=y +CONFIG_CRYPTO_GHASH_ARM64_CE=y +CONFIG_CRYPTO_AES_ARM64_CE_CCM=y +CONFIG_CRYPTO_AES_ARM64_CE_BLK=y +# CONFIG_CRYPTO_AES_ARM64_NEON_BLK is not set +CONFIG_CRYPTO_CRC32_ARM64=y +CONFIG_TEE=y +CONFIG_OPTEE=y diff --git a/arch/arm64/include/asm/cacheflush.h b/arch/arm64/include/asm/cacheflush.h index 2e5fb976a572..15478762dbbd 100644 --- a/arch/arm64/include/asm/cacheflush.h +++ b/arch/arm64/include/asm/cacheflush.h @@ -149,5 +149,6 @@ int set_memory_ro(unsigned long addr, int numpages); int set_memory_rw(unsigned long addr, int numpages); int set_memory_x(unsigned long addr, int numpages); int set_memory_nx(unsigned long addr, int numpages); +int set_memory_valid(unsigned long addr, unsigned long size, int enable); #endif diff --git a/arch/arm64/include/asm/hardirq.h b/arch/arm64/include/asm/hardirq.h index 8740297dac77..1473fc2f7ab7 100644 --- a/arch/arm64/include/asm/hardirq.h +++ b/arch/arm64/include/asm/hardirq.h @@ -20,7 +20,7 @@ #include <linux/threads.h> #include <asm/irq.h> -#define NR_IPI 6 +#define NR_IPI 7 typedef struct { unsigned int __softirq_pending; diff --git a/arch/arm64/include/asm/kexec.h b/arch/arm64/include/asm/kexec.h index 04744dc5fb61..e17f0529a882 100644 --- a/arch/arm64/include/asm/kexec.h +++ b/arch/arm64/include/asm/kexec.h @@ -40,9 +40,59 @@ static inline void crash_setup_regs(struct pt_regs *newregs, struct pt_regs *oldregs) { - /* Empty routine needed to avoid build errors. */ + if (oldregs) { + memcpy(newregs, oldregs, sizeof(*newregs)); + } else { + u64 tmp1, tmp2; + + __asm__ __volatile__ ( + "stp x0, x1, [%2, #16 * 0]\n" + "stp x2, x3, [%2, #16 * 1]\n" + "stp x4, x5, [%2, #16 * 2]\n" + "stp x6, x7, [%2, #16 * 3]\n" + "stp x8, x9, [%2, #16 * 4]\n" + "stp x10, x11, [%2, #16 * 5]\n" + "stp x12, x13, [%2, #16 * 6]\n" + "stp x14, x15, [%2, #16 * 7]\n" + "stp x16, x17, [%2, #16 * 8]\n" + "stp x18, x19, [%2, #16 * 9]\n" + "stp x20, x21, [%2, #16 * 10]\n" + "stp x22, x23, [%2, #16 * 11]\n" + "stp x24, x25, [%2, #16 * 12]\n" + "stp x26, x27, [%2, #16 * 13]\n" + "stp x28, x29, [%2, #16 * 14]\n" + "mov %0, sp\n" + "stp x30, %0, [%2, #16 * 15]\n" + + "/* faked current PSTATE */\n" + "mrs %0, CurrentEL\n" + "mrs %1, SPSEL\n" + "orr %0, %0, %1\n" + "mrs %1, DAIF\n" + "orr %0, %0, %1\n" + "mrs %1, NZCV\n" + "orr %0, %0, %1\n" + /* pc */ + "adr %1, 1f\n" + "1:\n" + "stp %1, %0, [%2, #16 * 16]\n" + : "=&r" (tmp1), "=&r" (tmp2) + : "r" (newregs) + : "memory" + ); + } } +#if defined(CONFIG_KEXEC_CORE) && defined(CONFIG_HIBERNATION) +extern bool crash_is_nosave(unsigned long pfn); +extern void crash_prepare_suspend(void); +extern void crash_post_resume(void); +#else +static inline bool crash_is_nosave(unsigned long pfn) {return false; } +static inline void crash_prepare_suspend(void) {} +static inline void crash_post_resume(void) {} +#endif + #endif /* __ASSEMBLY__ */ #endif diff --git a/arch/arm64/include/asm/percpu.h b/arch/arm64/include/asm/percpu.h index d7a3c6294224..3bd498e4de4c 100644 --- a/arch/arm64/include/asm/percpu.h +++ b/arch/arm64/include/asm/percpu.h @@ -103,16 +103,16 @@ static inline unsigned long __percpu_read(void *ptr, int size) switch (size) { case 1: - ret = ACCESS_ONCE(*(u8 *)ptr); + ret = READ_ONCE(*(u8 *)ptr); break; case 2: - ret = ACCESS_ONCE(*(u16 *)ptr); + ret = READ_ONCE(*(u16 *)ptr); break; case 4: - ret = ACCESS_ONCE(*(u32 *)ptr); + ret = READ_ONCE(*(u32 *)ptr); break; case 8: - ret = ACCESS_ONCE(*(u64 *)ptr); + ret = READ_ONCE(*(u64 *)ptr); break; default: BUILD_BUG(); @@ -125,16 +125,16 @@ static inline void __percpu_write(void *ptr, unsigned long val, int size) { switch (size) { case 1: - ACCESS_ONCE(*(u8 *)ptr) = (u8)val; + WRITE_ONCE(*(u8 *)ptr, (u8)val); break; case 2: - ACCESS_ONCE(*(u16 *)ptr) = (u16)val; + WRITE_ONCE(*(u16 *)ptr, (u16)val); break; case 4: - ACCESS_ONCE(*(u32 *)ptr) = (u32)val; + WRITE_ONCE(*(u32 *)ptr, (u32)val); break; case 8: - ACCESS_ONCE(*(u64 *)ptr) = (u64)val; + WRITE_ONCE(*(u64 *)ptr, (u64)val); break; default: BUILD_BUG(); diff --git a/arch/arm64/include/asm/smp.h b/arch/arm64/include/asm/smp.h index d050d720a1b4..55f08c5acfad 100644 --- a/arch/arm64/include/asm/smp.h +++ b/arch/arm64/include/asm/smp.h @@ -148,6 +148,9 @@ static inline void cpu_panic_kernel(void) */ bool cpus_are_stuck_in_kernel(void); +extern void smp_send_crash_stop(void); +extern bool smp_crash_stop_failed(void); + #endif /* ifndef __ASSEMBLY__ */ #endif /* ifndef __ASM_SMP_H */ diff --git a/arch/arm64/kernel/Makefile b/arch/arm64/kernel/Makefile index 74b8fd860714..5c26760225ea 100644 --- a/arch/arm64/kernel/Makefile +++ b/arch/arm64/kernel/Makefile @@ -50,6 +50,7 @@ arm64-obj-$(CONFIG_RANDOMIZE_BASE) += kaslr.o arm64-obj-$(CONFIG_HIBERNATION) += hibernate.o hibernate-asm.o arm64-obj-$(CONFIG_KEXEC) += machine_kexec.o relocate_kernel.o \ cpu-reset.o +arm64-obj-$(CONFIG_CRASH_DUMP) += crash_dump.o ifeq ($(CONFIG_KVM),y) arm64-obj-$(CONFIG_HARDEN_BRANCH_PREDICTOR) += bpi.o diff --git a/arch/arm64/kernel/crash_dump.c b/arch/arm64/kernel/crash_dump.c new file mode 100644 index 000000000000..f46d57c31443 --- /dev/null +++ b/arch/arm64/kernel/crash_dump.c @@ -0,0 +1,71 @@ +/* + * Routines for doing kexec-based kdump + * + * Copyright (C) 2017 Linaro Limited + * Author: AKASHI Takahiro <takahiro.akashi@linaro.org> + * + * 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/crash_dump.h> +#include <linux/errno.h> +#include <linux/io.h> +#include <linux/memblock.h> +#include <linux/uaccess.h> +#include <asm/memory.h> + +/** + * copy_oldmem_page() - copy one page from old kernel memory + * @pfn: page frame number to be copied + * @buf: buffer where the copied page is placed + * @csize: number of bytes to copy + * @offset: offset in bytes into the page + * @userbuf: if set, @buf is in a user address space + * + * This function copies one page from old kernel memory into buffer pointed by + * @buf. If @buf is in userspace, set @userbuf to %1. Returns number of bytes + * copied or negative error in case of failure. + */ +ssize_t copy_oldmem_page(unsigned long pfn, char *buf, + size_t csize, unsigned long offset, + int userbuf) +{ + void *vaddr; + + if (!csize) + return 0; + + vaddr = memremap(__pfn_to_phys(pfn), PAGE_SIZE, MEMREMAP_WB); + if (!vaddr) + return -ENOMEM; + + if (userbuf) { + if (copy_to_user((char __user *)buf, vaddr + offset, csize)) { + memunmap(vaddr); + return -EFAULT; + } + } else { + memcpy(buf, vaddr + offset, csize); + } + + memunmap(vaddr); + + return csize; +} + +/** + * elfcorehdr_read - read from ELF core header + * @buf: buffer where the data is placed + * @csize: number of bytes to read + * @ppos: address in the memory + * + * This function reads @count bytes from elf core header which exists + * on crash dump kernel's memory. + */ +ssize_t elfcorehdr_read(char *buf, size_t count, u64 *ppos) +{ + memcpy(buf, phys_to_virt((phys_addr_t)*ppos), count); + return count; +} diff --git a/arch/arm64/kernel/hibernate.c b/arch/arm64/kernel/hibernate.c index 8bed26a2d558..96fdbf8728d5 100644 --- a/arch/arm64/kernel/hibernate.c +++ b/arch/arm64/kernel/hibernate.c @@ -28,6 +28,7 @@ #include <asm/cacheflush.h> #include <asm/cputype.h> #include <asm/irqflags.h> +#include <asm/kexec.h> #include <asm/memory.h> #include <asm/mmu_context.h> #include <asm/pgalloc.h> @@ -102,7 +103,8 @@ int pfn_is_nosave(unsigned long pfn) unsigned long nosave_begin_pfn = sym_to_pfn(&__nosave_begin); unsigned long nosave_end_pfn = sym_to_pfn(&__nosave_end - 1); - return (pfn >= nosave_begin_pfn) && (pfn <= nosave_end_pfn); + return ((pfn >= nosave_begin_pfn) && (pfn <= nosave_end_pfn)) || + crash_is_nosave(pfn); } void notrace save_processor_state(void) @@ -286,6 +288,9 @@ int swsusp_arch_suspend(void) local_dbg_save(flags); if (__cpu_suspend_enter(&state)) { + /* make the crash dump kernel image visible/saveable */ + crash_prepare_suspend(); + sleep_cpu = smp_processor_id(); ret = swsusp_save(); } else { @@ -297,6 +302,9 @@ int swsusp_arch_suspend(void) if (el2_reset_needed()) dcache_clean_range(__hyp_idmap_text_start, __hyp_idmap_text_end); + /* make the crash dump kernel image protected again */ + crash_post_resume(); + /* * Tell the hibernation core that we've just restored * the memory diff --git a/arch/arm64/kernel/machine_kexec.c b/arch/arm64/kernel/machine_kexec.c index bc96c8a7fc79..481f54a866c5 100644 --- a/arch/arm64/kernel/machine_kexec.c +++ b/arch/arm64/kernel/machine_kexec.c @@ -9,12 +9,19 @@ * published by the Free Software Foundation. */ +#include <linux/interrupt.h> +#include <linux/irq.h> +#include <linux/kernel.h> #include <linux/kexec.h> +#include <linux/page-flags.h> #include <linux/smp.h> #include <asm/cacheflush.h> #include <asm/cpu_ops.h> +#include <asm/memory.h> +#include <asm/mmu.h> #include <asm/mmu_context.h> +#include <asm/page.h> #include "cpu-reset.h" @@ -22,8 +29,6 @@ extern const unsigned char arm64_relocate_new_kernel[]; extern const unsigned long arm64_relocate_new_kernel_size; -static unsigned long kimage_start; - /** * kexec_image_info - For debugging output. */ @@ -64,8 +69,6 @@ void machine_kexec_cleanup(struct kimage *kimage) */ int machine_kexec_prepare(struct kimage *kimage) { - kimage_start = kimage->start; - kexec_image_info(kimage); if (kimage->type != KEXEC_TYPE_CRASH && cpus_are_stuck_in_kernel()) { @@ -144,11 +147,15 @@ void machine_kexec(struct kimage *kimage) { phys_addr_t reboot_code_buffer_phys; void *reboot_code_buffer; + bool in_kexec_crash = (kimage == kexec_crash_image); + bool stuck_cpus = cpus_are_stuck_in_kernel(); /* * New cpus may have become stuck_in_kernel after we loaded the image. */ - BUG_ON(cpus_are_stuck_in_kernel() || (num_online_cpus() > 1)); + BUG_ON(!in_kexec_crash && (stuck_cpus || (num_online_cpus() > 1))); + WARN(in_kexec_crash && (stuck_cpus || smp_crash_stop_failed()), + "Some CPUs may be stale, kdump will be unreliable.\n"); reboot_code_buffer_phys = page_to_phys(kimage->control_code_page); reboot_code_buffer = phys_to_virt(reboot_code_buffer_phys); @@ -183,7 +190,7 @@ void machine_kexec(struct kimage *kimage) kexec_list_flush(kimage); /* Flush the new image if already in place. */ - if (kimage->head & IND_DONE) + if ((kimage != kexec_crash_image) && (kimage->head & IND_DONE)) kexec_segment_flush(kimage); pr_info("Bye!\n"); @@ -200,13 +207,158 @@ void machine_kexec(struct kimage *kimage) * relocation is complete. */ - cpu_soft_restart(1, reboot_code_buffer_phys, kimage->head, - kimage_start, 0); + cpu_soft_restart(kimage != kexec_crash_image, + reboot_code_buffer_phys, kimage->head, kimage->start, 0); BUG(); /* Should never get here. */ } +static void machine_kexec_mask_interrupts(void) +{ + unsigned int i; + struct irq_desc *desc; + + for_each_irq_desc(i, desc) { + struct irq_chip *chip; + int ret; + + chip = irq_desc_get_chip(desc); + if (!chip) + continue; + + /* + * First try to remove the active state. If this + * fails, try to EOI the interrupt. + */ + ret = irq_set_irqchip_state(i, IRQCHIP_STATE_ACTIVE, false); + + if (ret && irqd_irq_inprogress(&desc->irq_data) && + chip->irq_eoi) + chip->irq_eoi(&desc->irq_data); + + if (chip->irq_mask) + chip->irq_mask(&desc->irq_data); + + if (chip->irq_disable && !irqd_irq_disabled(&desc->irq_data)) + chip->irq_disable(&desc->irq_data); + } +} + +/** + * machine_crash_shutdown - shutdown non-crashing cpus and save registers + */ void machine_crash_shutdown(struct pt_regs *regs) { - /* Empty routine needed to avoid build errors. */ + local_irq_disable(); + + /* shutdown non-crashing cpus */ + smp_send_crash_stop(); + + /* for crashing cpu */ + crash_save_cpu(regs, smp_processor_id()); + machine_kexec_mask_interrupts(); + + pr_info("Starting crashdump kernel...\n"); +} + +void arch_kexec_protect_crashkres(void) +{ + int i; + + kexec_segment_flush(kexec_crash_image); + + for (i = 0; i < kexec_crash_image->nr_segments; i++) + set_memory_valid( + __phys_to_virt(kexec_crash_image->segment[i].mem), + kexec_crash_image->segment[i].memsz >> PAGE_SHIFT, 0); +} + +void arch_kexec_unprotect_crashkres(void) +{ + int i; + + for (i = 0; i < kexec_crash_image->nr_segments; i++) + set_memory_valid( + __phys_to_virt(kexec_crash_image->segment[i].mem), + kexec_crash_image->segment[i].memsz >> PAGE_SHIFT, 1); +} + +#ifdef CONFIG_HIBERNATION +/* + * To preserve the crash dump kernel image, the relevant memory segments + * should be mapped again around the hibernation. + */ +void crash_prepare_suspend(void) +{ + if (kexec_crash_image) + arch_kexec_unprotect_crashkres(); +} + +void crash_post_resume(void) +{ + if (kexec_crash_image) + arch_kexec_protect_crashkres(); +} + +/* + * crash_is_nosave + * + * Return true only if a page is part of reserved memory for crash dump kernel, + * but does not hold any data of loaded kernel image. + * + * Note that all the pages in crash dump kernel memory have been initially + * marked as Reserved in kexec_reserve_crashkres_pages(). + * + * In hibernation, the pages which are Reserved and yet "nosave" are excluded + * from the hibernation iamge. crash_is_nosave() does thich check for crash + * dump kernel and will reduce the total size of hibernation image. + */ + +bool crash_is_nosave(unsigned long pfn) +{ + int i; + phys_addr_t addr; + + if (!crashk_res.end) + return false; + + /* in reserved memory? */ + addr = __pfn_to_phys(pfn); + if ((addr < crashk_res.start) || (crashk_res.end < addr)) + return false; + + if (!kexec_crash_image) + return true; + + /* not part of loaded kernel image? */ + for (i = 0; i < kexec_crash_image->nr_segments; i++) + if (addr >= kexec_crash_image->segment[i].mem && + addr < (kexec_crash_image->segment[i].mem + + kexec_crash_image->segment[i].memsz)) + return false; + + return true; +} + +void crash_free_reserved_phys_range(unsigned long begin, unsigned long end) +{ + unsigned long addr; + struct page *page; + + for (addr = begin; addr < end; addr += PAGE_SIZE) { + page = phys_to_page(addr); + ClearPageReserved(page); + free_reserved_page(page); + } +} +#endif /* CONFIG_HIBERNATION */ + +void arch_crash_save_vmcoreinfo(void) +{ + VMCOREINFO_NUMBER(VA_BITS); + /* Please note VMCOREINFO_NUMBER() uses "%d", not "%x" */ + vmcoreinfo_append_str("NUMBER(kimage_voffset)=0x%llx\n", + kimage_voffset); + vmcoreinfo_append_str("NUMBER(PHYS_OFFSET)=0x%llx\n", + PHYS_OFFSET); } diff --git a/arch/arm64/kernel/setup.c b/arch/arm64/kernel/setup.c index b5222094ab52..d31cc1a33fd7 100644 --- a/arch/arm64/kernel/setup.c +++ b/arch/arm64/kernel/setup.c @@ -31,7 +31,6 @@ #include <linux/screen_info.h> #include <linux/init.h> #include <linux/kexec.h> -#include <linux/crash_dump.h> #include <linux/root_dev.h> #include <linux/cpu.h> #include <linux/interrupt.h> @@ -225,6 +224,12 @@ static void __init request_standard_resources(void) if (kernel_data.start >= res->start && kernel_data.end <= res->end) request_resource(res, &kernel_data); +#ifdef CONFIG_KEXEC_CORE + /* Userspace will find "Crash kernel" region in /proc/iomem. */ + if (crashk_res.end && crashk_res.start >= res->start && + crashk_res.end <= res->end) + request_resource(res, &crashk_res); +#endif } } diff --git a/arch/arm64/kernel/smp.c b/arch/arm64/kernel/smp.c index 9870badfd369..d1e6b51e1118 100644 --- a/arch/arm64/kernel/smp.c +++ b/arch/arm64/kernel/smp.c @@ -37,6 +37,7 @@ #include <linux/completion.h> #include <linux/of.h> #include <linux/irq_work.h> +#include <linux/kexec.h> #include <asm/alternative.h> #include <asm/atomic.h> @@ -74,6 +75,7 @@ enum ipi_msg_type { IPI_RESCHEDULE, IPI_CALL_FUNC, IPI_CPU_STOP, + IPI_CPU_CRASH_STOP, IPI_TIMER, IPI_IRQ_WORK, IPI_WAKEUP @@ -753,6 +755,7 @@ static const char *ipi_types[NR_IPI] __tracepoint_string = { S(IPI_RESCHEDULE, "Rescheduling interrupts"), S(IPI_CALL_FUNC, "Function call interrupts"), S(IPI_CPU_STOP, "CPU stop interrupts"), + S(IPI_CPU_CRASH_STOP, "CPU stop (for crash dump) interrupts"), S(IPI_TIMER, "Timer broadcast interrupts"), S(IPI_IRQ_WORK, "IRQ work interrupts"), S(IPI_WAKEUP, "CPU wake-up interrupts"), @@ -827,6 +830,29 @@ static void ipi_cpu_stop(unsigned int cpu) cpu_relax(); } +#ifdef CONFIG_KEXEC_CORE +static atomic_t waiting_for_crash_ipi = ATOMIC_INIT(0); +#endif + +static void ipi_cpu_crash_stop(unsigned int cpu, struct pt_regs *regs) +{ +#ifdef CONFIG_KEXEC_CORE + crash_save_cpu(regs, cpu); + + atomic_dec(&waiting_for_crash_ipi); + + local_irq_disable(); + +#ifdef CONFIG_HOTPLUG_CPU + if (cpu_ops[cpu]->cpu_die) + cpu_ops[cpu]->cpu_die(cpu); +#endif + + /* just in case */ + cpu_park_loop(); +#endif +} + /* * Main handler for inter-processor interrupts */ @@ -857,6 +883,15 @@ void handle_IPI(int ipinr, struct pt_regs *regs) irq_exit(); break; + case IPI_CPU_CRASH_STOP: + if (IS_ENABLED(CONFIG_KEXEC_CORE)) { + irq_enter(); + ipi_cpu_crash_stop(cpu, regs); + + unreachable(); + } + break; + #ifdef CONFIG_GENERIC_CLOCKEVENTS_BROADCAST case IPI_TIMER: irq_enter(); @@ -929,6 +964,39 @@ void smp_send_stop(void) cpumask_pr_args(cpu_online_mask)); } +#ifdef CONFIG_KEXEC_CORE +void smp_send_crash_stop(void) +{ + cpumask_t mask; + unsigned long timeout; + + if (num_online_cpus() == 1) + return; + + cpumask_copy(&mask, cpu_online_mask); + cpumask_clear_cpu(smp_processor_id(), &mask); + + atomic_set(&waiting_for_crash_ipi, num_online_cpus() - 1); + + pr_crit("SMP: stopping secondary CPUs\n"); + smp_cross_call(&mask, IPI_CPU_CRASH_STOP); + + /* Wait up to one second for other CPUs to stop */ + timeout = USEC_PER_SEC; + while ((atomic_read(&waiting_for_crash_ipi) > 0) && timeout--) + udelay(1); + + if (atomic_read(&waiting_for_crash_ipi) > 0) + pr_warning("SMP: failed to stop secondary CPUs %*pbl\n", + cpumask_pr_args(&mask)); +} + +bool smp_crash_stop_failed(void) +{ + return (atomic_read(&waiting_for_crash_ipi) > 0); +} +#endif + /* * not supported here */ diff --git a/arch/arm64/mm/fault.c b/arch/arm64/mm/fault.c index b9bff2258e59..e4e7b1991985 100644 --- a/arch/arm64/mm/fault.c +++ b/arch/arm64/mm/fault.c @@ -528,10 +528,10 @@ static const struct fault_info fault_info[] = { { do_bad, SIGBUS, 0, "unknown 17" }, { do_bad, SIGBUS, 0, "unknown 18" }, { do_bad, SIGBUS, 0, "unknown 19" }, - { do_bad, SIGBUS, 0, "synchronous abort (translation table walk)" }, - { do_bad, SIGBUS, 0, "synchronous abort (translation table walk)" }, - { do_bad, SIGBUS, 0, "synchronous abort (translation table walk)" }, - { do_bad, SIGBUS, 0, "synchronous abort (translation table walk)" }, + { do_bad, SIGBUS, 0, "synchronous external abort (translation table walk)" }, + { do_bad, SIGBUS, 0, "synchronous external abort (translation table walk)" }, + { do_bad, SIGBUS, 0, "synchronous external abort (translation table walk)" }, + { do_bad, SIGBUS, 0, "synchronous external abort (translation table walk)" }, { do_bad, SIGBUS, 0, "synchronous parity error" }, { do_bad, SIGBUS, 0, "unknown 25" }, { do_bad, SIGBUS, 0, "unknown 26" }, diff --git a/arch/arm64/mm/init.c b/arch/arm64/mm/init.c index 2b35b67540b9..8fff4a76721f 100644 --- a/arch/arm64/mm/init.c +++ b/arch/arm64/mm/init.c @@ -30,6 +30,7 @@ #include <linux/gfp.h> #include <linux/memblock.h> #include <linux/sort.h> +#include <linux/of.h> #include <linux/of_fdt.h> #include <linux/dma-mapping.h> #include <linux/dma-contiguous.h> @@ -37,6 +38,8 @@ #include <linux/swiotlb.h> #include <linux/vmalloc.h> #include <linux/mm.h> +#include <linux/kexec.h> +#include <linux/crash_dump.h> #include <asm/boot.h> #include <asm/fixmap.h> @@ -77,6 +80,142 @@ static int __init early_initrd(char *p) early_param("initrd", early_initrd); #endif +#ifdef CONFIG_KEXEC_CORE +/* + * reserve_crashkernel() - reserves memory for crash kernel + * + * This function reserves memory area given in "crashkernel=" kernel command + * line parameter. The memory reserved is used by dump capture kernel when + * primary kernel is crashing. + */ +static void __init reserve_crashkernel(void) +{ + unsigned long long crash_base, crash_size; + int ret; + + ret = parse_crashkernel(boot_command_line, memblock_phys_mem_size(), + &crash_size, &crash_base); + /* no crashkernel= or invalid value specified */ + if (ret || !crash_size) + return; + + crash_size = PAGE_ALIGN(crash_size); + + if (crash_base == 0) { + /* Current arm64 boot protocol requires 2MB alignment */ + crash_base = memblock_find_in_range(0, ARCH_LOW_ADDRESS_LIMIT, + crash_size, SZ_2M); + if (crash_base == 0) { + pr_warn("cannot allocate crashkernel (size:0x%llx)\n", + crash_size); + return; + } + } else { + /* User specifies base address explicitly. */ + if (!memblock_is_region_memory(crash_base, crash_size)) { + pr_warn("cannot reserve crashkernel: region is not memory\n"); + return; + } + + if (memblock_is_region_reserved(crash_base, crash_size)) { + pr_warn("cannot reserve crashkernel: region overlaps reserved memory\n"); + return; + } + + if (!IS_ALIGNED(crash_base, SZ_2M)) { + pr_warn("cannot reserve crashkernel: base address is not 2MB aligned\n"); + return; + } + } + memblock_reserve(crash_base, crash_size); + + pr_info("crashkernel reserved: 0x%016llx - 0x%016llx (%lld MB)\n", + crash_base, crash_base + crash_size, crash_size >> 20); + + 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 +static int __init early_init_dt_scan_elfcorehdr(unsigned long node, + const char *uname, int depth, void *data) +{ + const __be32 *reg; + int len; + + if (depth != 1 || strcmp(uname, "chosen") != 0) + return 0; + + reg = of_get_flat_dt_prop(node, "linux,elfcorehdr", &len); + if (!reg || (len < (dt_root_addr_cells + dt_root_size_cells))) + return 1; + + elfcorehdr_addr = dt_mem_next_cell(dt_root_addr_cells, ®); + elfcorehdr_size = dt_mem_next_cell(dt_root_size_cells, ®); + + return 1; +} + +/* + * reserve_elfcorehdr() - reserves memory for elf core header + * + * This function reserves the memory occupied by an elf core header + * described in the device tree. This region contains all the + * information about primary kernel's core image and is used by a dump + * capture kernel to access the system memory on primary kernel. + */ +static void __init reserve_elfcorehdr(void) +{ + of_scan_flat_dt(early_init_dt_scan_elfcorehdr, NULL); + + if (!elfcorehdr_size) + return; + + if (memblock_is_region_reserved(elfcorehdr_addr, elfcorehdr_size)) { + pr_warn("elfcorehdr is overlapped\n"); + return; + } + + memblock_reserve(elfcorehdr_addr, elfcorehdr_size); + + pr_info("Reserving %lldKB of memory at 0x%llx for elfcorehdr\n", + elfcorehdr_size >> 10, elfcorehdr_addr); +} +#else +static void __init reserve_elfcorehdr(void) +{ +} +#endif /* CONFIG_CRASH_DUMP */ /* * Return the maximum physical address for ZONE_DMA (DMA_BIT_MASK(32)). It * currently assumes that for memory starting above 4G, 32-bit devices will @@ -190,10 +329,45 @@ static int __init early_mem(char *p) } early_param("mem", early_mem); +static int __init early_init_dt_scan_usablemem(unsigned long node, + const char *uname, int depth, void *data) +{ + struct memblock_region *usablemem = data; + const __be32 *reg; + int len; + + if (depth != 1 || strcmp(uname, "chosen") != 0) + return 0; + + reg = of_get_flat_dt_prop(node, "linux,usable-memory-range", &len); + if (!reg || (len < (dt_root_addr_cells + dt_root_size_cells))) + return 1; + + usablemem->base = dt_mem_next_cell(dt_root_addr_cells, ®); + usablemem->size = dt_mem_next_cell(dt_root_size_cells, ®); + + return 1; +} + +static void __init fdt_enforce_memory_region(void) +{ + struct memblock_region reg = { + .size = 0, + }; + + of_scan_flat_dt(early_init_dt_scan_usablemem, ®); + + if (reg.size) + memblock_cap_memory_range(reg.base, reg.size); +} + void __init arm64_memblock_init(void) { const s64 linear_region_size = -(s64)PAGE_OFFSET; + /* Handle linux,usable-memory-range property */ + fdt_enforce_memory_region(); + /* * Ensure that the linear region takes up exactly half of the kernel * virtual address space. This way, we can distinguish a linear address @@ -299,6 +473,11 @@ void __init arm64_memblock_init(void) arm64_dma_phys_limit = max_zone_dma_phys(); else arm64_dma_phys_limit = PHYS_MASK + 1; + + reserve_crashkernel(); + + reserve_elfcorehdr(); + high_memory = __va(memblock_end_of_DRAM() - 1) + 1; dma_contiguous_reserve(arm64_dma_phys_limit); @@ -418,6 +597,8 @@ void __init mem_init(void) /* this will put all unused low memory onto the freelists */ free_all_bootmem(); + kexec_reserve_crashkres_pages(); + mem_init_print_info(NULL); #define MLK(b, t) b, t, ((t) - (b)) >> 10 diff --git a/arch/arm64/mm/mmu.c b/arch/arm64/mm/mmu.c index c84d7e09cf4a..a5d17dc828d0 100644 --- a/arch/arm64/mm/mmu.c +++ b/arch/arm64/mm/mmu.c @@ -22,6 +22,8 @@ #include <linux/kernel.h> #include <linux/errno.h> #include <linux/init.h> +#include <linux/ioport.h> +#include <linux/kexec.h> #include <linux/libfdt.h> #include <linux/mman.h> #include <linux/nodemask.h> @@ -318,56 +320,32 @@ static void create_mapping_late(phys_addr_t phys, unsigned long virt, NULL, !debug_pagealloc_enabled()); } -static void __init __map_memblock(pgd_t *pgd, phys_addr_t start, phys_addr_t end) +static void __init __map_memblock(pgd_t *pgd, phys_addr_t start, + phys_addr_t end, pgprot_t prot, + bool allow_block_mappings) +{ + __create_pgd_mapping(pgd, start, __phys_to_virt(start), end - start, + prot, early_pgtable_alloc, allow_block_mappings); +} + +static void __init map_mem(pgd_t *pgd) { unsigned long kernel_start = __pa_symbol(_text); unsigned long kernel_end = __pa_symbol(__init_begin); + struct memblock_region *reg; /* * Take care not to create a writable alias for the * read-only text and rodata sections of the kernel image. + * So temporarily mark them as NOMAP to skip mappings in + * the following for-loop */ - - /* No overlap with the kernel text/rodata */ - if (end < kernel_start || start >= kernel_end) { - __create_pgd_mapping(pgd, start, __phys_to_virt(start), - end - start, PAGE_KERNEL, - early_pgtable_alloc, - !debug_pagealloc_enabled()); - return; - } - - /* - * This block overlaps the kernel text/rodata mappings. - * Map the portion(s) which don't overlap. - */ - if (start < kernel_start) - __create_pgd_mapping(pgd, start, - __phys_to_virt(start), - kernel_start - start, PAGE_KERNEL, - early_pgtable_alloc, - !debug_pagealloc_enabled()); - if (kernel_end < end) - __create_pgd_mapping(pgd, kernel_end, - __phys_to_virt(kernel_end), - end - kernel_end, PAGE_KERNEL, - early_pgtable_alloc, - !debug_pagealloc_enabled()); - - /* - * Map the linear alias of the [_text, __init_begin) interval as - * read-only/non-executable. This makes the contents of the - * region accessible to subsystems such as hibernate, but - * protects it from inadvertent modification or execution. - */ - __create_pgd_mapping(pgd, kernel_start, __phys_to_virt(kernel_start), - kernel_end - kernel_start, PAGE_KERNEL_RO, - early_pgtable_alloc, !debug_pagealloc_enabled()); -} - -static void __init map_mem(pgd_t *pgd) -{ - struct memblock_region *reg; + memblock_mark_nomap(kernel_start, kernel_end - kernel_start); +#ifdef CONFIG_KEXEC_CORE + if (crashk_res.end) + memblock_mark_nomap(crashk_res.start, + resource_size(&crashk_res)); +#endif /* map all the memory banks */ for_each_memblock(memory, reg) { @@ -379,8 +357,33 @@ static void __init map_mem(pgd_t *pgd) if (memblock_is_nomap(reg)) continue; - __map_memblock(pgd, start, end); + __map_memblock(pgd, start, end, + PAGE_KERNEL, !debug_pagealloc_enabled()); } + + /* + * Map the linear alias of the [_text, __init_begin) interval as + * read-only/non-executable. This makes the contents of the + * region accessible to subsystems such as hibernate, but + * protects it from inadvertent modification or execution. + */ + __map_memblock(pgd, kernel_start, kernel_end, + PAGE_KERNEL_RO, !debug_pagealloc_enabled()); + memblock_clear_nomap(kernel_start, kernel_end - kernel_start); + +#ifdef CONFIG_KEXEC_CORE + /* + * Use page-level mappings here so that we can shrink the region + * in page granularity and put back unused memory to buddy system + * through /sys/kernel/kexec_crash_size interface. + */ + if (crashk_res.end) { + __map_memblock(pgd, crashk_res.start, crashk_res.end + 1, + PAGE_KERNEL, false); + memblock_clear_nomap(crashk_res.start, + resource_size(&crashk_res)); + } +#endif } void mark_rodata_ro(void) diff --git a/arch/arm64/mm/pageattr.c b/arch/arm64/mm/pageattr.c index 8def55e7249b..3212ee0558f6 100644 --- a/arch/arm64/mm/pageattr.c +++ b/arch/arm64/mm/pageattr.c @@ -125,20 +125,23 @@ int set_memory_x(unsigned long addr, int numpages) } EXPORT_SYMBOL_GPL(set_memory_x); -#ifdef CONFIG_DEBUG_PAGEALLOC -void __kernel_map_pages(struct page *page, int numpages, int enable) +int set_memory_valid(unsigned long addr, int numpages, int enable) { - unsigned long addr = (unsigned long) page_address(page); - if (enable) - __change_memory_common(addr, PAGE_SIZE * numpages, + return __change_memory_common(addr, PAGE_SIZE * numpages, __pgprot(PTE_VALID), __pgprot(0)); else - __change_memory_common(addr, PAGE_SIZE * numpages, + return __change_memory_common(addr, PAGE_SIZE * numpages, __pgprot(0), __pgprot(PTE_VALID)); } + +#ifdef CONFIG_DEBUG_PAGEALLOC +void __kernel_map_pages(struct page *page, int numpages, int enable) +{ + set_memory_valid((unsigned long)page_address(page), numpages, enable); +} #ifdef CONFIG_HIBERNATION /* * When built with CONFIG_DEBUG_PAGEALLOC and CONFIG_HIBERNATION, this function diff --git a/drivers/firmware/efi/libstub/fdt.c b/drivers/firmware/efi/libstub/fdt.c index 260c4b4b492e..82973b86efe4 100644 --- a/drivers/firmware/efi/libstub/fdt.c +++ b/drivers/firmware/efi/libstub/fdt.c @@ -16,6 +16,22 @@ #include "efistub.h" +#define EFI_DT_ADDR_CELLS_DEFAULT 2 +#define EFI_DT_SIZE_CELLS_DEFAULT 2 + +static void fdt_update_cell_size(efi_system_table_t *sys_table, void *fdt) +{ + int offset; + + offset = fdt_path_offset(fdt, "/"); + /* Set the #address-cells and #size-cells values for an empty tree */ + + fdt_setprop_u32(fdt, offset, "#address-cells", + EFI_DT_ADDR_CELLS_DEFAULT); + + fdt_setprop_u32(fdt, offset, "#size-cells", EFI_DT_SIZE_CELLS_DEFAULT); +} + static efi_status_t update_fdt(efi_system_table_t *sys_table, void *orig_fdt, unsigned long orig_fdt_size, void *fdt, int new_fdt_size, char *cmdline_ptr, @@ -42,10 +58,18 @@ static efi_status_t update_fdt(efi_system_table_t *sys_table, void *orig_fdt, } } - if (orig_fdt) + if (orig_fdt) { status = fdt_open_into(orig_fdt, fdt, new_fdt_size); - else + } else { status = fdt_create_empty_tree(fdt, new_fdt_size); + if (status == 0) { + /* + * Any failure from the following function is non + * critical + */ + fdt_update_cell_size(sys_table, fdt); + } + } if (status != 0) goto fdt_set_fail; diff --git a/include/linux/memblock.h b/include/linux/memblock.h index 4024af00b137..c565fb053eea 100644 --- a/include/linux/memblock.h +++ b/include/linux/memblock.h @@ -91,6 +91,7 @@ int memblock_mark_hotplug(phys_addr_t base, phys_addr_t size); int memblock_clear_hotplug(phys_addr_t base, phys_addr_t size); int memblock_mark_mirror(phys_addr_t base, phys_addr_t size); int memblock_mark_nomap(phys_addr_t base, phys_addr_t size); +int memblock_clear_nomap(phys_addr_t base, phys_addr_t size); ulong choose_memblock_flags(void); /* Low level functions */ @@ -335,6 +336,7 @@ phys_addr_t memblock_mem_size(unsigned long limit_pfn); phys_addr_t memblock_start_of_DRAM(void); phys_addr_t memblock_end_of_DRAM(void); void memblock_enforce_memory_limit(phys_addr_t memory_limit); +void memblock_cap_memory_range(phys_addr_t base, phys_addr_t size); void memblock_mem_limit_remove_map(phys_addr_t limit); bool memblock_is_memory(phys_addr_t addr); int memblock_is_map_memory(phys_addr_t addr); diff --git a/mm/memblock.c b/mm/memblock.c index 42b98af6a415..3740af5e99ec 100644 --- a/mm/memblock.c +++ b/mm/memblock.c @@ -810,6 +810,18 @@ int __init_memblock memblock_mark_nomap(phys_addr_t base, phys_addr_t size) } /** + * memblock_clear_nomap - Clear flag MEMBLOCK_NOMAP for a specified region. + * @base: the base phys addr of the region + * @size: the size of the region + * + * Return 0 on success, -errno on failure. + */ +int __init_memblock memblock_clear_nomap(phys_addr_t base, phys_addr_t size) +{ + return memblock_setclr_flag(base, size, 0, MEMBLOCK_NOMAP); +} + +/** * __next_reserved_mem_region - next function for for_each_reserved_region() * @idx: pointer to u64 loop variable * @out_start: ptr to phys_addr_t for start address of the region, can be %NULL @@ -1510,11 +1522,37 @@ void __init memblock_enforce_memory_limit(phys_addr_t limit) (phys_addr_t)ULLONG_MAX); } +void __init memblock_cap_memory_range(phys_addr_t base, phys_addr_t size) +{ + int start_rgn, end_rgn; + int i, ret; + + if (!size) + return; + + ret = memblock_isolate_range(&memblock.memory, base, size, + &start_rgn, &end_rgn); + if (ret) + return; + + /* remove all the MAP regions */ + for (i = memblock.memory.cnt - 1; i >= end_rgn; i--) + if (!memblock_is_nomap(&memblock.memory.regions[i])) + memblock_remove_region(&memblock.memory, i); + + for (i = start_rgn - 1; i >= 0; i--) + if (!memblock_is_nomap(&memblock.memory.regions[i])) + memblock_remove_region(&memblock.memory, i); + + /* truncate the reserved regions */ + memblock_remove_range(&memblock.reserved, 0, base); + memblock_remove_range(&memblock.reserved, + base + size, (phys_addr_t)ULLONG_MAX); +} + void __init memblock_mem_limit_remove_map(phys_addr_t limit) { - struct memblock_type *type = &memblock.memory; phys_addr_t max_addr; - int i, ret, start_rgn, end_rgn; if (!limit) return; @@ -1525,19 +1563,7 @@ void __init memblock_mem_limit_remove_map(phys_addr_t limit) if (max_addr == (phys_addr_t)ULLONG_MAX) return; - ret = memblock_isolate_range(type, max_addr, (phys_addr_t)ULLONG_MAX, - &start_rgn, &end_rgn); - if (ret) - return; - - /* remove all the MAP regions above the limit */ - for (i = end_rgn - 1; i >= start_rgn; i--) { - if (!memblock_is_nomap(&type->regions[i])) - memblock_remove_region(type, i); - } - /* truncate the reserved regions */ - memblock_remove_range(&memblock.reserved, max_addr, - (phys_addr_t)ULLONG_MAX); + memblock_cap_memory_range(0, max_addr); } static int __init_memblock memblock_search(struct memblock_type *type, phys_addr_t addr) |