On Wed, Dec 09, 2009 at 03:04:57PM +0800, Huang Ying wrote: > x86_64 specific support, including crash memory range and purgatory setup. > Corresponding kernel support has been merged already. > > Together with the kexec jump features in Linux kernel, kexec jump can > be used for following: > > - A simple hibernation implementation without ACPI support. You can > kexec a hibernating kernel, save the memory image of original system > and shutdown the system. When resuming, you restore the memory image > of original system via ordinary kexec load then jump back. > > - Kernel/system debug through making system snapshot. You can make > system snapshot with kexec/kdump, jump back, do some thing and make > another system snapshot. > > - Cooperative multi-kernel/system. With kexec jump, you can switch > between several kernels/systems quickly without boot process except > the first time. This appears like swap a whole kernel/system out/in. > > - A general method to call program in physical mode (paging turning > off). This can be used to invoke BIOS code under Linux. Thanks, applied.
