In order to allow objtool to make sense of all the various paravirt
functions, it needs to either parse whole pv_ops tables, or observe
individual assignments in the form:
bf87: 48 c7 05 00 00 00 00 00 00 00 00 movq $0x0,0x0(%rip)
bf8a: R_X86_64_PC32 pv_ops+0x268
As is, xen_cpu_ops is at offset +0 in pv_ops and could thus be
parsed as a 'normal' pv_ops table, however xen_irq_ops and
xen_mmu_ops are not.
Worse, both the latter two are compiled into the individual assignment
for by current GCC, but that's not something one can rely on.
Therefore, convert all three into full pv_ops tables. This has the
benefit of not needing to teach objtool about the offsets and
resulting in more conservative code-gen.
Signed-off-by: Peter Zijlstra (Intel) <peterz@xxxxxxxxxxxxx>
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