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| author |   Simon Horman <horms@verge.net.au> | 2011-09-15 20:13:00 +0900 |
|---|---|---|
| committer |   Paul Mundt <lethal@linux-sh.org> | 2011-10-28 15:03:43 +0900 |
| commit | e66ac3f26aef131f5ca60350d25fba95f43acd0d (patch) | |
| tree | 480337b09468bb5e8d1660c218d04a1a63b940e3 /arch/sh/Kconfig | |
| parent | SH: irq: Remove IRQF_DISABLED (diff) | |
| download | linux-dev-e66ac3f26aef131f5ca60350d25fba95f43acd0d.tar.xz linux-dev-e66ac3f26aef131f5ca60350d25fba95f43acd0d.zip | |
sh: kexec: Add PHYSICAL_START
Add PHYSICAL_START kernel configuration parameter to set the address at
which the kernel should be loaded.
It has been observed on an sh7757lcr that simply modifying MEMORY_START
does not achieve this goal for 32bit sh. This is due to MEMORY_OFFSET in
arch/sh/kernel/vmlinux.lds.S bot being based on MEMORY_START on such
systems.
Signed-off-by: Simon Horman <horms@verge.net.au>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'arch/sh/Kconfig')
| -rw-r--r-- | arch/sh/Kconfig | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig index 2d39594bcdd6..5629e2099130 100644 --- a/arch/sh/Kconfig +++ b/arch/sh/Kconfig @@ -645,7 +645,7 @@ config CRASH_DUMP 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 using - MEMORY_START. + PHYSICAL_START. For more details see Documentation/kdump/kdump.txt @@ -656,6 +656,17 @@ config KEXEC_JUMP Jump between original kernel and kexeced kernel and invoke code via KEXEC +config PHYSICAL_START + hex "Physical address where the kernel is loaded" if (EXPERT || CRASH_DUMP) + default MEMORY_START + ---help--- + This gives the physical address where the kernel is loaded + and is ordinarily the same as MEMORY_START. + + Different values are primarily used in the case of kexec on panic + where the fail safe kernel needs to run at a different address + than the panic-ed kernel. + config SECCOMP bool "Enable seccomp to safely compute untrusted bytecode" depends on PROC_FS |