Re: [PATCH 1/1] x86: Exclude E820_RESERVED regions and memory holesabove 4 GB from direct mapping.

[Jacob Shin]

On Thu, 2011-10-20 at 17:20 -0500, H. Peter Anvin wrote:
> On 10/20/2011 02:15 PM, Jacob Shin wrote:
> > On systems with very large memory (1 TB in our case), BIOS may report a
> > reserved region or a hole in the E820 map, even above the 4 GB range. Exclude
> > these from the direct mapping.
> 
> > +			if (ei->type == E820_RESERVED)
> > +				continue;
> 
> This should probably be ei->type != E820_RAM or something similar.  I
> haven't looked yet, what does the < 4 GiB code do?

Hm, okay, it calls e820_end_of_low_ram_pfn() which effectively is !=
E820_RAM.

I'll fix this, test, then resend.

Thanks!

-Jacob Shin
Advanced Micro Devices, Inc.

> 
> 	-hpa
> 
> 



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