Re: [PATCH 3/5] x86/mcheck/AMD: Reduce number of blocks scanned per bank

[Aravind Gopalakrishnan]

On 1/14/2016 4:53 PM, Borislav Petkov wrote:
> On Thu, Jan 14, 2016 at 04:48:22PM -0600, Aravind Gopalakrishnan wrote:
> > True. But that BlkPtr logic also will undergo changes as it's interpretation
> > for future processors is different.
> But there still must be a bit there which says "this register is valid",
> like MCi_MISC[63].

There is a bit to say if it's valid or not.

> And so I'd very much prefer checking a bit (or bits) instead of relying
> on defines.

But we'd still need to know the last available MISC register for a bank 
to know when to end the loop right?

Currently we loop over all the possible blocks-
 for (block = 0; block < NR_BLOCKS; ++block) {
 <code>...

 increment block address;

 <code>..
 }

Here, we know we have to stop at block number 8 as that is the last MISC 
register that is present for a bank.
In the same manner, we'd still have to know the last possible MISC 
register for future processors..

Thanks,
-Aravind.