x86: extend processor type select help text

extend the help text of the CONFIG_CPU_SUP_* config options to
express what it does and what effects it has.

Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 56 insertions, 7 deletions

diff --git a/arch/x86/Kconfig.cpu b/arch/x86/Kconfig.cpu
index f8843c3ae77d..a2ea1488b37e 100644
--- a/arch/x86/Kconfig.cpu
+++ b/arch/x86/Kconfig.cpu
@@ -430,48 +430,97 @@ config CPU_SUP_INTEL
         default y
         bool "Support Intel processors" if PROCESSOR_SELECT
         help
-          This enables extended support for Intel processors
+          This enables detection, tunings and quirks for Intel processors
+
+          You need this enabled if you want your kernel to run on an
+          Intel CPU. Disabling this option on other types of CPUs
+          makes the kernel a tiny bit smaller. Disabling it on an Intel
+          CPU might render the kernel unbootable.
+
+          If unsure, say N.
 
 config CPU_SUP_CYRIX_32
         default y
         bool "Support Cyrix processors" if PROCESSOR_SELECT
         depends on !64BIT
         help
-          This enables extended support for Cyrix processors
+          This enables detection, tunings and quirks for Cyrix processors
+
+          You need this enabled if you want your kernel to run on a
+          Cyrix CPU. Disabling this option on other types of CPUs
+          makes the kernel a tiny bit smaller. Disabling it on a Cyrix
+          CPU might render the kernel unbootable.
+
+          If unsure, say N.
 
 config CPU_SUP_AMD
         default y
         bool "Support AMD processors" if PROCESSOR_SELECT
         help
-          This enables extended support for AMD processors
+          This enables detection, tunings and quirks for AMD processors
+
+          You need this enabled if you want your kernel to run on an
+          AMD CPU. Disabling this option on other types of CPUs
+          makes the kernel a tiny bit smaller. Disabling it on an AMD
+          CPU might render the kernel unbootable.
+
+          If unsure, say N.
 
 config CPU_SUP_CENTAUR_32
         default y
         bool "Support Centaur processors" if PROCESSOR_SELECT
         depends on !64BIT
         help
-          This enables extended support for Centaur processors
+          This enables detection, tunings and quirks for Centaur processors
+
+          You need this enabled if you want your kernel to run on a
+          Centaur CPU. Disabling this option on other types of CPUs
+          makes the kernel a tiny bit smaller. Disabling it on a Centaur
+          CPU might render the kernel unbootable.
+
+          If unsure, say N.
 
 config CPU_SUP_CENTAUR_64
         default y
         bool "Support Centaur processors" if PROCESSOR_SELECT
         depends on 64BIT
         help
-          This enables extended support for Centaur processors
+          This enables detection, tunings and quirks for Centaur processors
+
+          You need this enabled if you want your kernel to run on a
+          Centaur CPU. Disabling this option on other types of CPUs
+          makes the kernel a tiny bit smaller. Disabling it on a Centaur
+          CPU might render the kernel unbootable.
+
+          If unsure, say N.
 
 config CPU_SUP_TRANSMETA_32
         default y
         bool "Support Transmeta processors" if PROCESSOR_SELECT
         depends on !64BIT
         help
-          This enables extended support for Transmeta processors
+          This enables detection, tunings and quirks for Transmeta processors
+
+          You need this enabled if you want your kernel to run on a
+          Transmeta CPU. Disabling this option on other types of CPUs
+          makes the kernel a tiny bit smaller. Disabling it on a Transmeta
+          CPU might render the kernel unbootable.
+
+          If unsure, say N.
 
 config CPU_SUP_UMC_32
         default y
         bool "Support UMC processors" if PROCESSOR_SELECT
         depends on !64BIT
         help
-          This enables extended support for UMC processors
+          This enables detection, tunings and quirks for UMC processors
+
+          You need this enabled if you want your kernel to run on a
+          UMC CPU. Disabling this option on other types of CPUs
+          makes the kernel a tiny bit smaller. Disabling it on a UMC
+          CPU might render the kernel unbootable.
+
+          If unsure, say N.
 
 config X86_DS
         bool "Debug Store support"