[PATCH v2 3/3] RISC-V: Add arch functions to support hibernation/suspend-to-disk

[Leyfoon Tan]

[...]
> 
> > +{
> > +	hibernate_cpu_context = kcalloc(1, sizeof(struct suspend_context),
> GFP_KERNEL);
> > +
> > +	if (WARN_ON(!hibernate_cpu_context))
> > +		return -ENOMEM;
> > +
> > +	return 0;
> > +}
> > +
> > +early_initcall(riscv_hibernate__init);
> > --
> > 2.34.1
> >
> >
> 
> Besides some nits and a couple questions, this looks to me. I'll try to
> find some time to experiment with it as well.
FYI, you need use the latest OpenSBI tree. We also submitted these 2 patches below to fix the boot hartid. Resume from hibernation needs to be same hartid.


https://github.com/riscv-software-src/opensbi/commit/cb7e7c3325e68a9b4d5ea210b97cac693cf5814f
https://github.com/riscv-software-src/opensbi/commit/8020df8733b060f01e35b0b2bcb2b41e6b992e9b