On 27/11/2015:02:19:37 PM, Marc Zyngier wrote: > On 24/11/15 22:25, Geoff Levand wrote: > > +ENTRY(cpu_soft_restart) > > + mov x18, x0 // cpu_reset > > + mov x0, x1 // el2_switch > > + mov x1, x2 // entry > > + mov x2, x3 // arg0 > > + mov x3, x4 // arg1 > > + ret x18 > > +ENDPROC(cpu_soft_restart) > > Grepping through the tree, I can only find a single use of > cpu_soft_restart, with cpu_reset as its first parameter. > > Why do we need this indirection? Having
It is needed because we need to execute cpu_reset() in physical address space. > > void cpu_soft_restart(el2_switch, entry, arg0, arg1); > > should be enough... We can do with only cpu_soft_restart(), but then a function pointer to __pa() of it need to be called. May be current approach is more cleaner. ~Pratyush _______________________________________________ kexec mailing list [email protected] http://lists.infradead.org/mailman/listinfo/kexec
