On Thu, Apr 2, 2015 at 5:31 AM, tip-bot for Christoph Hellwig
<tipbot@xxxxxxxxx> wrote:
> Commit-ID: ec776ef6bbe1734c29cd6bd05219cd93b2731bd4
> Gitweb: http://git.kernel.org/tip/ec776ef6bbe1734c29cd6bd05219cd93b2731bd4
> Author: Christoph Hellwig <hch@xxxxxx>
> AuthorDate: Wed, 1 Apr 2015 09:12:18 +0200
> Committer: Ingo Molnar <mingo@xxxxxxxxxx>
> CommitDate: Wed, 1 Apr 2015 17:02:43 +0200
>
> x86/mm: Add support for the non-standard protected e820 type
..
> @@ -688,6 +691,7 @@ void __init e820_mark_nosave_regions(unsigned long limit_pfn)
> register_nosave_region(pfn, PFN_UP(ei->addr));
>
> pfn = PFN_DOWN(ei->addr + ei->size);
> +
> if (ei->type != E820_RAM && ei->type != E820_RESERVED_KERN)
> register_nosave_region(PFN_UP(ei->addr), pfn);
>
related?
> @@ -748,7 +752,7 @@ u64 __init early_reserve_e820(u64 size, u64 align)
> /*
> * Find the highest page frame number we have available
> */
> -static unsigned long __init e820_end_pfn(unsigned long limit_pfn, unsigned type)
> +static unsigned long __init e820_end_pfn(unsigned long limit_pfn)
> {
> int i;
> unsigned long last_pfn = 0;
> @@ -759,7 +763,11 @@ static unsigned long __init e820_end_pfn(unsigned long limit_pfn, unsigned type)
> unsigned long start_pfn;
> unsigned long end_pfn;
>
> - if (ei->type != type)
> + /*
> + * Persistent memory is accounted as ram for purposes of
> + * establishing max_pfn and mem_map.
> + */
> + if (ei->type != E820_RAM && ei->type != E820_PRAM)
> continue;
>
> start_pfn = ei->addr >> PAGE_SHIFT;
> @@ -784,12 +792,12 @@ static unsigned long __init e820_end_pfn(unsigned long limit_pfn, unsigned type)
> }
> unsigned long __init e820_end_of_ram_pfn(void)
> {
> - return e820_end_pfn(MAX_ARCH_PFN, E820_RAM);
> + return e820_end_pfn(MAX_ARCH_PFN);
> }
>
> unsigned long __init e820_end_of_low_ram_pfn(void)
> {
> - return e820_end_pfn(1UL<<(32 - PAGE_SHIFT), E820_RAM);
> + return e820_end_pfn(1UL << (32-PAGE_SHIFT));
> }
>
> static void early_panic(char *msg)
>
those eno_of_ram changes are not needed, as it will not used for
kernel mapping setup.
Thanks
Yinghai
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