Messages in this thread | | | Date | Tue, 20 Nov 2007 13:01:28 -0800 | From | "H. Peter Anvin" <> | Subject | Re: [rfc 08/45] cpu alloc: x86 support |
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Andi Kleen wrote: >> This limitation shouldn't apply to the percpu area, since gs_base can be >> pointed anywhere in the address space -- in effect we're always indirect. > > The initial reference copy of the percpu area has to be addressed by > the linker. > > Hmm, in theory since it is not actually used by itself I suppose you could > move it into positive space. >
Positive space for absolute references, or just below -2 GB for %rip references; either should work.
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