Merge tag 'kvm-3.7-1' of git://git.kernel.org/pub/scm/virt/kvm/kvm

[karo-tx-linux.git] / arch / x86 / Kconfig

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 6cd6f24e1223cca14fb5f692761b73346e7ffdf1..b72777ff32a9439ad401779b3bdce873f0d0b744 100644 (file)
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -586,23 +586,18 @@ config PARAVIRT_TIME_ACCOUNTING
 
 source "arch/x86/xen/Kconfig"
 
-config KVM_CLOCK
-       bool "KVM paravirtualized clock"
-       select PARAVIRT
-       select PARAVIRT_CLOCK
-       ---help---
-         Turning on this option will allow you to run a paravirtualized clock
-         when running over the KVM hypervisor. Instead of relying on a PIT
-         (or probably other) emulation by the underlying device model, the host
-         provides the guest with timing infrastructure such as time of day, and
-         system time
-
 config KVM_GUEST
-       bool "KVM Guest support"
+       bool "KVM Guest support (including kvmclock)"
        select PARAVIRT
+       select PARAVIRT
+       select PARAVIRT_CLOCK
+       default y if PARAVIRT_GUEST
        ---help---
          This option enables various optimizations for running under the KVM
-         hypervisor.
+         hypervisor. It includes a paravirtualized clock, so that instead
+         of relying on a PIT (or probably other) emulation by the
+         underlying device model, the host provides the guest with
+         timing infrastructure such as time of day, and system time
 
 source "arch/x86/lguest/Kconfig"
 
@@ -986,25 +981,25 @@ config X86_REBOOTFIXUPS
          Say N otherwise.
 
 config MICROCODE
-       tristate "/dev/cpu/microcode - microcode support"
+       tristate "CPU microcode loading support"
        select FW_LOADER
        ---help---
+
          If you say Y here, you will be able to update the microcode on
          certain Intel and AMD processors. The Intel support is for the
-         IA32 family, e.g. Pentium Pro, Pentium II, Pentium III,
-         Pentium 4, Xeon etc. The AMD support is for family 0x10 and
-         0x11 processors, e.g. Opteron, Phenom and Turion 64 Ultra.
-         You will obviously need the actual microcode binary data itself
-         which is not shipped with the Linux kernel.
+         IA32 family, e.g. Pentium Pro, Pentium II, Pentium III, Pentium 4,
+         Xeon etc. The AMD support is for families 0x10 and later. You will
+         obviously need the actual microcode binary data itself which is not
+         shipped with the Linux kernel.
 
          This option selects the general module only, you need to select
          at least one vendor specific module as well.
 
-         To compile this driver as a module, choose M here: the
-         module will be called microcode.
+         To compile this driver as a module, choose M here: the module
+         will be called microcode.
 
 config MICROCODE_INTEL
-       bool "Intel microcode patch loading support"
+       bool "Intel microcode loading support"
        depends on MICROCODE
        default MICROCODE
        select FW_LOADER
@@ -1017,7 +1012,7 @@ config MICROCODE_INTEL
          <http://www.urbanmyth.org/microcode/>.
 
 config MICROCODE_AMD
-       bool "AMD microcode patch loading support"
+       bool "AMD microcode loading support"
        depends on MICROCODE
        select FW_LOADER
        ---help---
@@ -1493,6 +1488,17 @@ config ARCH_RANDOM
          If supported, this is a high bandwidth, cryptographically
          secure hardware random number generator.
 
+config X86_SMAP
+       def_bool y
+       prompt "Supervisor Mode Access Prevention" if EXPERT
+       ---help---
+         Supervisor Mode Access Prevention (SMAP) is a security
+         feature in newer Intel processors.  There is a small
+         performance cost if this enabled and turned on; there is
+         also a small increase in the kernel size if this is enabled.
+
+         If unsure, say Y.
+
 config EFI
        bool "EFI runtime service support"
        depends on ACPI