2 files changed, 15 insertions, 1 deletions
diff --git a/arch/i386/Kconfig b/arch/i386/Kconfig
index c134a545b37e..e34a4dbd6b92 100644
--- a/arch/i386/Kconfig
+++ b/arch/i386/Kconfig
@@ -761,6 +761,13 @@ config CRASH_DUMP
        depends on HIGHMEM
        help
          Generate crash dump after being started by kexec.
+          This should be normally only set in special crash dump kernels
+          which are loaded in the main kernel with kexec-tools into
+          a specially reserved region and then later executed after
+          a crash by kdump/kexec. The crash dump kernel must be compiled
+          to a memory address not used by the main kernel or BIOS using
+          PHYSICAL_START.
+          For more details see Documentation/kdump/kdump.txt
 config PHYSICAL_START
        hex "Physical address where the kernel is loaded" if (EMBEDDED || CRASH_DUMP)
diff --git a/arch/x86_64/Kconfig b/arch/x86_64/Kconfig
index 6cd4878625f1..927b392a4aa0 100644
--- a/arch/x86_64/Kconfig
+++ b/arch/x86_64/Kconfig
@@ -488,7 +488,14 @@ config CRASH_DUMP
        bool "kernel crash dumps (EXPERIMENTAL)"
        depends on EXPERIMENTAL
        help
-                Generate crash dump after being started by kexec.
+          Generate crash dump after being started by kexec.
+          This should be normally only set in special crash dump kernels
+          which are loaded in the main kernel with kexec-tools into
+          a specially reserved region and then later executed after
+          a crash by kdump/kexec. The crash dump kernel must be compiled
+          to a memory address not used by the main kernel or BIOS using
+          PHYSICAL_START.
+          For more details see Documentation/kdump/kdump.txt
 config PHYSICAL_START
        hex "Physical address where the kernel is loaded" if (EMBEDDED || CRASH_DUMP)

diff --git a/arch/i386/Kconfig b/arch/i386/Kconfig index c134a545b37e..e34a4dbd6b92 100644 --- a/arch/i386/Kconfig +++ b/arch/i386/Kconfig
@@ -761,6 +761,13 @@ config CRASH_DUMP
761	depends on HIGHMEM	761	depends on HIGHMEM
762	help	762	help
763	Generate crash dump after being started by kexec.	763	Generate crash dump after being started by kexec.
		764	This should be normally only set in special crash dump kernels
		765	which are loaded in the main kernel with kexec-tools into
		766	a specially reserved region and then later executed after
		767	a crash by kdump/kexec. The crash dump kernel must be compiled
		768	to a memory address not used by the main kernel or BIOS using
		769	PHYSICAL_START.
		770	For more details see Documentation/kdump/kdump.txt
764		771
765	config PHYSICAL_START	772	config PHYSICAL_START
766	hex "Physical address where the kernel is loaded" if (EMBEDDED \|\| CRASH_DUMP)	773	hex "Physical address where the kernel is loaded" if (EMBEDDED \|\| CRASH_DUMP)


diff --git a/arch/x86_64/Kconfig b/arch/x86_64/Kconfig index 6cd4878625f1..927b392a4aa0 100644 --- a/arch/x86_64/Kconfig +++ b/arch/x86_64/Kconfig
@@ -488,7 +488,14 @@ config CRASH_DUMP
488	bool "kernel crash dumps (EXPERIMENTAL)"	488	bool "kernel crash dumps (EXPERIMENTAL)"
489	depends on EXPERIMENTAL	489	depends on EXPERIMENTAL
490	help	490	help
491	Generate crash dump after being started by kexec.	491	Generate crash dump after being started by kexec.
		492	This should be normally only set in special crash dump kernels
		493	which are loaded in the main kernel with kexec-tools into
		494	a specially reserved region and then later executed after
		495	a crash by kdump/kexec. The crash dump kernel must be compiled
		496	to a memory address not used by the main kernel or BIOS using
		497	PHYSICAL_START.
		498	For more details see Documentation/kdump/kdump.txt
492		499
493	config PHYSICAL_START	500	config PHYSICAL_START
494	hex "Physical address where the kernel is loaded" if (EMBEDDED \|\| CRASH_DUMP)	501	hex "Physical address where the kernel is loaded" if (EMBEDDED \|\| CRASH_DUMP)