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author | Ingo Molnar <mingo@kernel.org> | 2020-03-21 09:23:40 +0100 |
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committer | Ingo Molnar <mingo@kernel.org> | 2020-03-21 09:24:41 +0100 |
commit | a4654e9bde4ecedb4921e6c8fe2088114bdff1b3 (patch) | |
tree | 1b9970b520d7bc7176cc9460fe67f210be5ea181 /arch/x86/Kconfig | |
parent | 7add7875a8eb4ffe5eddaf8a11e409c9e1b6e3f3 (diff) | |
parent | e4160b2e4b02377c67f8ecd05786811598f39acd (diff) | |
download | linux-a4654e9bde4ecedb4921e6c8fe2088114bdff1b3.tar.bz2 |
Merge branch 'x86/kdump' into locking/kcsan, to resolve conflicts
Conflicts:
arch/x86/purgatory/Makefile
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/x86/Kconfig')
-rw-r--r-- | arch/x86/Kconfig | 116 |
1 files changed, 45 insertions, 71 deletions
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index 998ab70a403d..7db34381976a 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -93,10 +93,11 @@ config X86 select ARCH_USE_QUEUED_RWLOCKS select ARCH_USE_QUEUED_SPINLOCKS select ARCH_WANT_BATCHED_UNMAP_TLB_FLUSH + select ARCH_WANT_DEFAULT_BPF_JIT if X86_64 select ARCH_WANTS_DYNAMIC_TASK_STRUCT select ARCH_WANT_HUGE_PMD_SHARE select ARCH_WANTS_THP_SWAP if X86_64 - select BUILDTIME_EXTABLE_SORT + select BUILDTIME_TABLE_SORT select CLKEVT_I8253 select CLOCKSOURCE_VALIDATE_LAST_CYCLE select CLOCKSOURCE_WATCHDOG @@ -119,11 +120,13 @@ config X86 select GENERIC_IRQ_RESERVATION_MODE select GENERIC_IRQ_SHOW select GENERIC_PENDING_IRQ if SMP + select GENERIC_PTDUMP select GENERIC_SMP_IDLE_THREAD select GENERIC_STRNCPY_FROM_USER select GENERIC_STRNLEN_USER select GENERIC_TIME_VSYSCALL select GENERIC_GETTIMEOFDAY + select GENERIC_VDSO_TIME_NS select GUP_GET_PTE_LOW_HIGH if X86_PAE select HARDLOCKUP_CHECK_TIMESTAMP if X86_64 select HAVE_ACPI_APEI if ACPI @@ -200,7 +203,7 @@ config X86 select HAVE_PCI select HAVE_PERF_REGS select HAVE_PERF_USER_STACK_DUMP - select HAVE_RCU_TABLE_FREE if PARAVIRT + select MMU_GATHER_RCU_TABLE_FREE if PARAVIRT select HAVE_REGS_AND_STACK_ACCESS_API select HAVE_RELIABLE_STACKTRACE if X86_64 && (UNWINDER_FRAME_POINTER || UNWINDER_ORC) && STACK_VALIDATION select HAVE_FUNCTION_ARG_ACCESS_API @@ -440,8 +443,8 @@ config X86_MPPARSE (esp with 64bit cpus) with acpi support, MADT and DSDT will override it config GOLDFISH - def_bool y - depends on X86_GOLDFISH + def_bool y + depends on X86_GOLDFISH config RETPOLINE bool "Avoid speculative indirect branches in kernel" @@ -457,6 +460,7 @@ config X86_CPU_RESCTRL bool "x86 CPU resource control support" depends on X86 && (CPU_SUP_INTEL || CPU_SUP_AMD) select KERNFS + select PROC_CPU_RESCTRL if PROC_FS help Enable x86 CPU resource control support. @@ -478,7 +482,7 @@ config X86_BIGSMP bool "Support for big SMP systems with more than 8 CPUs" depends on SMP ---help--- - This option is needed for the systems that have more than 8 CPUs + This option is needed for the systems that have more than 8 CPUs. config X86_EXTENDED_PLATFORM bool "Support for extended (non-PC) x86 platforms" @@ -562,9 +566,9 @@ config X86_UV # Please maintain the alphabetic order if and when there are additions config X86_GOLDFISH - bool "Goldfish (Virtual Platform)" - depends on X86_EXTENDED_PLATFORM - ---help--- + bool "Goldfish (Virtual Platform)" + depends on X86_EXTENDED_PLATFORM + ---help--- Enable support for the Goldfish virtual platform used primarily for Android development. Unless you are building for the Android Goldfish emulator say N here. @@ -807,9 +811,9 @@ config KVM_GUEST timing infrastructure such as time of day, and system time config ARCH_CPUIDLE_HALTPOLL - def_bool n - prompt "Disable host haltpoll when loading haltpoll driver" - help + def_bool n + prompt "Disable host haltpoll when loading haltpoll driver" + help If virtualized under KVM, disable host haltpoll. config PVH @@ -888,16 +892,16 @@ config HPET_EMULATE_RTC depends on HPET_TIMER && (RTC=y || RTC=m || RTC_DRV_CMOS=m || RTC_DRV_CMOS=y) config APB_TIMER - def_bool y if X86_INTEL_MID - prompt "Intel MID APB Timer Support" if X86_INTEL_MID - select DW_APB_TIMER - depends on X86_INTEL_MID && SFI - help - APB timer is the replacement for 8254, HPET on X86 MID platforms. - The APBT provides a stable time base on SMP - systems, unlike the TSC, but it is more expensive to access, - as it is off-chip. APB timers are always running regardless of CPU - C states, they are used as per CPU clockevent device when possible. + def_bool y if X86_INTEL_MID + prompt "Intel MID APB Timer Support" if X86_INTEL_MID + select DW_APB_TIMER + depends on X86_INTEL_MID && SFI + help + APB timer is the replacement for 8254, HPET on X86 MID platforms. + The APBT provides a stable time base on SMP + systems, unlike the TSC, but it is more expensive to access, + as it is off-chip. APB timers are always running regardless of CPU + C states, they are used as per CPU clockevent device when possible. # Mark as expert because too many people got it wrong. # The code disables itself when not needed. @@ -1036,8 +1040,8 @@ config SCHED_MC_PRIO If unsure say Y here. config UP_LATE_INIT - def_bool y - depends on !SMP && X86_LOCAL_APIC + def_bool y + depends on !SMP && X86_LOCAL_APIC config X86_UP_APIC bool "Local APIC support on uniprocessors" if !PCI_MSI @@ -1186,8 +1190,8 @@ config X86_LEGACY_VM86 If unsure, say N here. config VM86 - bool - default X86_LEGACY_VM86 + bool + default X86_LEGACY_VM86 config X86_16BIT bool "Enable support for 16-bit segments" if EXPERT @@ -1208,10 +1212,10 @@ config X86_ESPFIX64 depends on X86_16BIT && X86_64 config X86_VSYSCALL_EMULATION - bool "Enable vsyscall emulation" if EXPERT - default y - depends on X86_64 - ---help--- + bool "Enable vsyscall emulation" if EXPERT + default y + depends on X86_64 + ---help--- This enables emulation of the legacy vsyscall page. Disabling it is roughly equivalent to booting with vsyscall=none, except that it will also disable the helpful warning if a program @@ -1513,7 +1517,7 @@ config X86_CPA_STATISTICS bool "Enable statistic for Change Page Attribute" depends on DEBUG_FS ---help--- - Expose statistics about the Change Page Attribute mechanims, which + Expose statistics about the Change Page Attribute mechanism, which helps to determine the effectiveness of preserving large and huge page mappings when mapping protections are changed. @@ -1544,12 +1548,12 @@ config AMD_MEM_ENCRYPT_ACTIVE_BY_DEFAULT # Common NUMA Features config NUMA - bool "Numa Memory Allocation and Scheduler Support" + bool "NUMA Memory Allocation and Scheduler Support" depends on SMP depends on X86_64 || (X86_32 && HIGHMEM64G && X86_BIGSMP) default y if X86_BIGSMP ---help--- - Enable NUMA (Non Uniform Memory Access) support. + Enable NUMA (Non-Uniform Memory Access) support. The kernel will try to allocate memory used by a CPU on the local memory controller of the CPU and add some more @@ -1649,9 +1653,9 @@ config ARCH_PROC_KCORE_TEXT depends on X86_64 && PROC_KCORE config ILLEGAL_POINTER_VALUE - hex - default 0 if X86_32 - default 0xdead000000000000 if X86_64 + hex + default 0 if X86_32 + default 0xdead000000000000 if X86_64 config X86_PMEM_LEGACY_DEVICE bool @@ -1886,34 +1890,6 @@ config X86_UMIP specific cases in protected and virtual-8086 modes. Emulated results are dummy. -config X86_INTEL_MPX - prompt "Intel MPX (Memory Protection Extensions)" - def_bool n - # Note: only available in 64-bit mode due to VMA flags shortage - depends on CPU_SUP_INTEL && X86_64 - select ARCH_USES_HIGH_VMA_FLAGS - ---help--- - MPX provides hardware features that can be used in - conjunction with compiler-instrumented code to check - memory references. It is designed to detect buffer - overflow or underflow bugs. - - This option enables running applications which are - instrumented or otherwise use MPX. It does not use MPX - itself inside the kernel or to protect the kernel - against bad memory references. - - Enabling this option will make the kernel larger: - ~8k of kernel text and 36 bytes of data on a 64-bit - defconfig. It adds a long to the 'mm_struct' which - will increase the kernel memory overhead of each - process and adds some branches to paths used during - exec() and munmap(). - - For details, see Documentation/x86/intel_mpx.rst - - If unsure, say N. - config X86_INTEL_MEMORY_PROTECTION_KEYS prompt "Intel Memory Protection Keys" def_bool y @@ -1992,11 +1968,12 @@ config EFI platforms. config EFI_STUB - bool "EFI stub support" - depends on EFI && !X86_USE_3DNOW - select RELOCATABLE - ---help--- - This kernel feature allows a bzImage to be loaded directly + bool "EFI stub support" + depends on EFI && !X86_USE_3DNOW + depends on $(cc-option,-mabi=ms) || X86_32 + select RELOCATABLE + ---help--- + This kernel feature allows a bzImage to be loaded directly by EFI firmware without the use of a bootloader. See Documentation/admin-guide/efi-stub.rst for more information. @@ -2956,9 +2933,6 @@ config HAVE_ATOMIC_IOMAP def_bool y depends on X86_32 -config X86_DEV_DMA_OPS - bool - source "drivers/firmware/Kconfig" source "arch/x86/kvm/Kconfig" |