diff options
| author | Eric W. Biederman <ebiederm@xmission.com> | 2005-06-25 23:58:02 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-06-26 01:24:50 +0200 |
| commit | 5234f5eb04abbbfa306ccfbc2ccbb6e73f515b15 (patch) | |
| tree | 60f4701fdc501955ccff198f84913b96e3bbf5bf /arch/x86_64/Kconfig | |
| parent | [PATCH] kexec: x86_64: factor out apic shutdown code (diff) | |
| download | linux-5234f5eb04abbbfa306ccfbc2ccbb6e73f515b15.tar.xz linux-5234f5eb04abbbfa306ccfbc2ccbb6e73f515b15.zip | |
[PATCH] kexec: x86_64 kexec implementation
This is the x86_64 implementation of machine kexec. 32bit compatibility
support has been implemented, and machine_kexec has been enhanced to not care
about the changing internal kernel paget table structures.
From: Alexander Nyberg <alexn@dsv.su.se>
build fix
Signed-off-by: Eric Biederman <ebiederm@xmission.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'arch/x86_64/Kconfig')
| -rw-r--r-- | arch/x86_64/Kconfig | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/arch/x86_64/Kconfig b/arch/x86_64/Kconfig index 56c02cf6397d..d09437b5c48f 100644 --- a/arch/x86_64/Kconfig +++ b/arch/x86_64/Kconfig @@ -380,6 +380,23 @@ config PHYSICAL_START Don't change this unless you know what you are doing. +config KEXEC + bool "kexec system call (EXPERIMENTAL)" + depends on EXPERIMENTAL + help + kexec is a system call that implements the ability to shutdown your + current kernel, and to start another kernel. It is like a reboot + but it is indepedent of the system firmware. And like a reboot + you can start any kernel with it, not just Linux. + + The name comes from the similiarity to the exec system call. + + It is an ongoing process to be certain the hardware in a machine + is properly shutdown, so do not be surprised if this code does not + initially work for you. It may help to enable device hotplugging + support. As of this writing the exact hardware interface is + strongly in flux, so no good recommendation can be made. + config SECCOMP bool "Enable seccomp to safely compute untrusted bytecode" depends on PROC_FS |