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>

diff --git a/arch/x86/Kconfig.cpu b/arch/x86/Kconfig.cpu
index f8843c3ae77d5b2e7244e4189666097625d1c825..a2ea1488b37e5950d9fa4ab540e4920812dad6dc 100644 (file)
--- 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"