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| author | Ralf Baechle <ralf@linux-mips.org> | 2012-10-11 18:14:58 +0200 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2012-12-13 16:46:47 +0100 |
| commit | 7aa1c8f47e7e792d11f898cbdddaf6fa21ff08cc (patch) | |
| tree | e34986c087ab7a9f91c8303eda7f13736e315905 /arch/mips/Kconfig | |
| parent | 98cdee0eae861e8d25c147a72c5f309e883f4ed8 (diff) | |
| download | linux-exynos-7aa1c8f47e7e792d11f898cbdddaf6fa21ff08cc.tar.gz linux-exynos-7aa1c8f47e7e792d11f898cbdddaf6fa21ff08cc.tar.bz2 linux-exynos-7aa1c8f47e7e792d11f898cbdddaf6fa21ff08cc.zip | |
MIPS: kdump: Add support
[ralf@linux-mips.org: Original patch by Maxim Uvarov <muvarov@gmail.com>
with plenty of further shining, polishing, debugging and testing by me.]
Signed-off-by: Maxim Uvarov <muvarov@gmail.com>
Cc: linux-mips@linux-mips.org
Cc: kexec@lists.infradead.org
Cc: horms@verge.net.au
Patchwork: https://patchwork.linux-mips.org/patch/1025/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/Kconfig')
| -rw-r--r-- | arch/mips/Kconfig | 23 |
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 |