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-rw-r--r--arch/x86/Kconfig31
1 files changed, 27 insertions, 4 deletions
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 5d0bf1aa9dcb..e4b1f431c7ed 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -23,6 +23,7 @@ config X86
def_bool y
select ARCH_MIGHT_HAVE_ACPI_PDC if ACPI
select ARCH_HAS_DEBUG_STRICT_USER_COPY_CHECKS
+ select ARCH_HAS_FAST_MULTIPLIER
select ARCH_MIGHT_HAVE_PC_PARPORT
select ARCH_MIGHT_HAVE_PC_SERIO
select HAVE_AOUT if X86_32
@@ -136,6 +137,7 @@ config X86
select HAVE_ACPI_APEI if ACPI
select HAVE_ACPI_APEI_NMI if ACPI
select ACPI_LEGACY_TABLES_LOOKUP if ACPI
+ select X86_FEATURE_NAMES if PROC_FS
config INSTRUCTION_DECODER
def_bool y
@@ -313,6 +315,17 @@ config SMP
If you don't know what to do here, say N.
+config X86_FEATURE_NAMES
+ bool "Processor feature human-readable names" if EMBEDDED
+ default y
+ ---help---
+ This option compiles in a table of x86 feature bits and corresponding
+ names. This is required to support /proc/cpuinfo and a few kernel
+ messages. You can disable this to save space, at the expense of
+ making those few kernel messages show numeric feature bits instead.
+
+ If in doubt, say Y.
+
config X86_X2APIC
bool "Support x2apic"
depends on X86_LOCAL_APIC && X86_64 && IRQ_REMAP
@@ -1585,9 +1598,6 @@ source kernel/Kconfig.hz
config KEXEC
bool "kexec system call"
- select BUILD_BIN2C
- select CRYPTO
- select CRYPTO_SHA256
---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
@@ -1602,9 +1612,22 @@ config KEXEC
interface is strongly in flux, so no good recommendation can be
made.
+config KEXEC_FILE
+ bool "kexec file based system call"
+ select BUILD_BIN2C
+ depends on KEXEC
+ depends on X86_64
+ depends on CRYPTO=y
+ depends on CRYPTO_SHA256=y
+ ---help---
+ This is new version of kexec system call. This system call is
+ file based and takes file descriptors as system call argument
+ for kernel and initramfs as opposed to list of segments as
+ accepted by previous system call.
+
config KEXEC_VERIFY_SIG
bool "Verify kernel signature during kexec_file_load() syscall"
- depends on KEXEC
+ depends on KEXEC_FILE
---help---
This option makes kernel signature verification mandatory for
kexec_file_load() syscall. If kernel is signature can not be