Messages in this thread | | | Date | Wed, 13 Jan 2021 09:56:49 +0100 | From | Oscar Salvador <> | Subject | Re: [PATCH v3 1/2] x86/setup: don't remove E820_TYPE_RAM for pfn 0 |
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On Mon, Jan 11, 2021 at 09:40:16PM +0200, Mike Rapoport wrote: > From: Mike Rapoport <rppt@linux.ibm.com> > > The first 4Kb of memory is a BIOS owned area and to avoid its allocation > for the kernel it was not listed in e820 tables as memory. As the result, > pfn 0 was never recognised by the generic memory management and it is not a > part of neither node 0 nor ZONE_DMA.
So, since it never was added to memblock.memory structs, it was not initialized by init_unavailable_mem, right?
-- Oscar Salvador SUSE L3
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