On Sat, Oct 11, 2008 at 5:37 PM, ron minnich <[EMAIL PROTECTED]> wrote: > On Fri, Oct 10, 2008 at 10:18 PM, Peter Stuge <[EMAIL PROTECTED]> wrote: > >> XIP could never perform better than fetching from cache except if the >> cache is broken. > > If cache is broken, CAR is not going to work very well, we have no > stack --> we're not going to boot anyway ... > > I think we let the guys who make the chips deal with broken cache issues. > > I am unable to see the need for XIP at this point but I am willing to > be shown that I am wrong.
Would using a small bit of XIP code enable us to detect broken cache and report that fact (post code, beep code, serial console printk) ? Knowing that it's the CPU that is broken would allow one not to throw away the other good parts of the computer... -- Vincent Legoll -- coreboot mailing list: [email protected] http://www.coreboot.org/mailman/listinfo/coreboot
