Subject: Re: [PATCH 1/3] powerpc: bare minimum checkpoint/restart implementation

From: Benjamin Herrenschmidt <[email-masked]>
Date: Wed, 04 Feb 2009 14:39:49 +1100

> +struct cr_hdr_cpu {
> +	struct pt_regs pt_regs;
> +	/* relevant fields from thread_struct */
> +	double fpr[32][TS_FPRWIDTH];
> +	unsigned int fpscr;
> +	int fpexc_mode;
> +	/* unsigned int align_ctl; this is never updated? */
> +	unsigned long dabr;
> +};

Is there some version or other identification somewhere ? If not there
should be. ie, we're going to add things here. For example, what about
the vector registers ? Also, some CPUs will have more HW debug registers
than just the DABR (we plan to add support for all the BookE architected
IACs and DACs for example), etc...

Ben.