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-rw-r--r--arch/mips/Kconfig23
1 files changed, 23 insertions, 0 deletions
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index 462f9c4fe2e5..c97fc030fdac 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -2379,6 +2379,29 @@ config KEXEC
support. As of this writing the exact hardware interface is
strongly in flux, so no good recommendation can be made.
+config CRASH_DUMP
+ bool "Kernel crash dumps"
+ 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 firmware using
+ PHYSICAL_START.
+
+config PHYSICAL_START
+ hex "Physical address where the kernel is loaded"
+ default "0xffffffff84000000" if 64BIT
+ default "0x84000000" if 32BIT
+ depends on CRASH_DUMP
+ help
+ This gives the CKSEG0 or KSEG0 address where the kernel is loaded.
+ If you plan to use kernel for capturing the crash dump change
+ this value to start of the reserved region (the "X" value as
+ specified in the "crashkernel=YM@XM" command line boot parameter
+ passed to the panic-ed kernel).
+
config SECCOMP
bool "Enable seccomp to safely compute untrusted bytecode"
depends on PROC_FS