Dave Hansen wrote: > On Sun, 2008-08-10 at 07:55 -0700, Jeremy Fitzhardinge wrote: > >> Struct pt_regs is not ABI, and can (and has) changed on x86. It's not >> suitable for a checkpoint structure because it only contains the >> registers that the kernel trashes, not all usermode registers (on i386, >> it leaves out %gs, for example). asm-x86/ptrace-abi.h does define stuff >> that's fixed in stone; it expresses it in terms of a register array, >> with constants defining what element is which register. >> > > Thanks for the explanation. > > I just want to reduce the coding and maintenance burden here. Xen must > do this for partition mobility, right? Does it define all its own > stuff? >
You mean save/restore/migrate? Yes, it defines all its own stuff. Checkpoint-resume on a whole VM is a rather simpler operation than a subset of processes. J _______________________________________________ Containers mailing list [EMAIL PROTECTED] https://lists.linux-foundation.org/mailman/listinfo/containers _______________________________________________ Devel mailing list Devel@openvz.org https://openvz.org/mailman/listinfo/devel