Messages in this thread | | | Date | Thu, 8 Oct 2015 10:40:55 +0100 | From | Russell King - ARM Linux <> | Subject | Re: [PATCH V4 2/3] arm64: support initrd outside kernel linear map |
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On Thu, Oct 08, 2015 at 05:18:14PM +0800, yalin wang wrote: > is it also possible to implement it on ARM platforms? > ARM64 platform don’t have HIGH_MEM zone . > but ARM platform have . > i remember boot loader must put init rd into low memory region, > so if some boot loader put init rd into HIGH men zone > we can also relocate it to low men region ? > then boot loader don’t need care about this , > and since vmalloc= boot option will change HIGH mem region size, > if we can relocate init rd , boot loader don’t need care about init rd load address, > when change vmalloc= boot options .
I'd be more inclined to say yes if the kernel wasn't buggering around passing virtual addresses (initrd_start) of the initrd image around, but instead used a physical address. initrd_start must be a lowmem address.
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