Merge tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty...

[karo-tx-linux.git] / arch / arm / Kconfig

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 1c5021002fe40b06a2e57daad459bf1b4181b822..72ad724c67ae94cd6682ec15f3834966dd7028c0 100644 (file)
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -188,6 +188,9 @@ config ARCH_HAS_ILOG2_U64
 config ARCH_HAS_BANDGAP
        bool
 
+config FIX_EARLYCON_MEM
+       def_bool y if MMU
+
 config GENERIC_HWEIGHT
        bool
        default y
@@ -268,7 +271,6 @@ config PHYS_OFFSET
        depends on !ARM_PATCH_PHYS_VIRT
        default DRAM_BASE if !MMU
        default 0x00000000 if ARCH_EBSA110 || \
-                       EP93XX_SDCE3_SYNC_PHYS_OFFSET || \
                        ARCH_FOOTBRIDGE || \
                        ARCH_INTEGRATOR || \
                        ARCH_IOP13XX || \
@@ -277,10 +279,7 @@ config PHYS_OFFSET
        default 0x10000000 if ARCH_OMAP1 || ARCH_RPC
        default 0x20000000 if ARCH_S5PV210
        default 0x70000000 if REALVIEW_HIGH_PHYS_OFFSET
-       default 0xc0000000 if EP93XX_SDCE0_PHYS_OFFSET || ARCH_SA1100
-       default 0xd0000000 if EP93XX_SDCE1_PHYS_OFFSET
-       default 0xe0000000 if EP93XX_SDCE2_PHYS_OFFSET
-       default 0xf0000000 if EP93XX_SDCE3_ASYNC_PHYS_OFFSET
+       default 0xc0000000 if ARCH_SA1100
        help
          Please provide the physical address corresponding to the
          location of main memory in your system.
@@ -418,11 +417,14 @@ config ARCH_EP93XX
        bool "EP93xx-based"
        select ARCH_HAS_HOLES_MEMORYMODEL
        select ARCH_REQUIRE_GPIOLIB
-       select ARCH_USES_GETTIMEOFFSET
        select ARM_AMBA
+       select ARM_PATCH_PHYS_VIRT
        select ARM_VIC
+       select AUTO_ZRELADDR
        select CLKDEV_LOOKUP
+       select CLKSRC_MMIO
        select CPU_ARM920T
+       select GENERIC_CLOCKEVENTS
        help
          This enables support for the Cirrus EP93xx series of CPUs.
 
@@ -536,6 +538,7 @@ config ARCH_ORION5X
        select MVEBU_MBUS
        select PCI
        select PLAT_ORION_LEGACY
+       select MULTI_IRQ_HANDLER
        help
          Support for the following Marvell Orion 5x series SoCs:
          Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
@@ -1496,6 +1499,7 @@ config HOTPLUG_CPU
 config ARM_PSCI
        bool "Support for the ARM Power State Coordination Interface (PSCI)"
        depends on CPU_V7
+       select ARM_PSCI_FW
        help
          Say Y here if you want Linux to communicate with system firmware
          implementing the PSCI specification for CPU-centric power
@@ -1700,13 +1704,24 @@ config HIGHPTE
          consumed by page tables.  Setting this option will allow
          user-space 2nd level page tables to reside in high memory.
 
-config HW_PERF_EVENTS
-       bool "Enable hardware performance counter support for perf events"
-       depends on PERF_EVENTS
+config CPU_SW_DOMAIN_PAN
+       bool "Enable use of CPU domains to implement privileged no-access"
+       depends on MMU && !ARM_LPAE
        default y
        help
-         Enable hardware performance counter support for perf events. If
-         disabled, perf events will use software events only.
+         Increase kernel security by ensuring that normal kernel accesses
+         are unable to access userspace addresses.  This can help prevent
+         use-after-free bugs becoming an exploitable privilege escalation
+         by ensuring that magic values (such as LIST_POISON) will always
+         fault when dereferenced.
+
+         CPUs with low-vector mappings use a best-efforts implementation.
+         Their lower 1MB needs to remain accessible for the vectors, but
+         the remainder of userspace will become appropriately inaccessible.
+
+config HW_PERF_EVENTS
+       def_bool y
+       depends on ARM_PMU
 
 config SYS_SUPPORTS_HUGETLBFS
        def_bool y
@@ -2005,6 +2020,7 @@ config KEXEC
        bool "Kexec system call (EXPERIMENTAL)"
        depends on (!SMP || PM_SLEEP_SMP)
        depends on !CPU_V7M
+       select KEXEC_CORE
        help
          kexec is a system call that implements the ability to shutdown your
          current kernel, and to start another kernel.  It is like a reboot