Re: [PATCH 1/4] efi/x86: make efi_memmap_reserve only insert into boot mem areas

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On 01/13/17 at 05:20am, Dave Young wrote:
> On 01/12/17 at 04:15pm, Ard Biesheuvel wrote:
> > Hello Dave,
> > 
> > On 12 January 2017 at 09:41, Dave Young <dyoung@xxxxxxxxxx> wrote:
> > > There are memory ranges like below when I testing early efi_mem_reserve:
> > >
> > > efi: mem62: [Reserved           |   |  |  |  |  |  |  |   |  |  |  |  ] range=[0x0000000000000000-0xffffffffffffffff] (0MB)
> > > efi: mem63: [Reserved           |   |  |  |  |  |  |  |   |  |  |  |  ] range=[0x0000000000000000-0xffffffffffffffff] (0MB)
> > > efi: mem64: [Reserved           |   |  |  |  |  |  |  |   |  |  |  |  ] range=[0x0000000000000000-0xffffffffffffffff] (0MB)
> > > efi: mem65: [Reserved           |   |  |  |  |  |  |  |   |  |  |  |  ] range=[0x0000000000000000-0xffffffffffffffff] (0MB)
> > > efi: mem66: [Reserved           |   |  |  |  |  |  |  |   |  |  |  |  ] range=[0x0000000000000000-0xffffffffffffffff] (0MB)
> > > efi: mem67: [Reserved           |   |  |  |  |  |  |  |   |  |  |  |  ] range=[0x0000000000000000-0xffffffffffffffff] (0MB)
> > >
> > 
> > Did you spot Peter's patch to prune invalid memmap entries?
> > 
> > https://git.kernel.org/cgit/linux/kernel/git/efi/efi.git/commit/?h=next&id=b2a91a35445229
> > 
> > I would expect this patch to no longer be necessary with that in place, no?
> 
> Ard, good suggestion, I did not notice that patch, will try. Actually
> I'm not sure about fake_mem handling, if we can filter out the invalid
> ranges then it will be natural to drop this one after a test.

The commit works for me. I updated the series.

I addressed comments known, moved patch 1 to 4/4 with only boot service
(dropped loader areas checking), I plan to send them out next Monday
see if there are more comments. 

If anyone who want to try them now, feel free to download from below url:
http://people.redhat.com/~ruyang/efi-bgrt/

Thanks
Dave
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