On 11/17/2012 09:00 PM, Eric W. Biederman wrote: >> >> The easy way to fix that is to do what we do on 32 bits: we copy it >> into the bss before we turn paging on (the 64-bit equivalent is before >> we switch to the new page tables.) That way we know where it is, at >> least for the bounded-size data items. > > Whatever works. It sounds like six of one half a dozen of the other to > me. Last I looked early_ioremap works as soon as paging is enabled on > x86_64. > Well, x86-64 means paging is enabled. Presumably you mean "as son as we are onl our own page tables". I'm fine either way, *as long as* we don't touch *any* memory outside text/data/bss/brk before we recover this content. -hpa -- H. Peter Anvin, Intel Open Source Technology Center I work for Intel. I don't speak on their behalf.
