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spapr: Add ibm, purr property on power7 and newer 

PAPR+ says that no "ibm,purr" tells the guest that H_PURR is not
supported. However some guests still try calling H_PURR on POWER7 unless
the property is present and equal to 0. This adds the property for CPUs
supporting the PURR special register.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Alexander Graf <agraf@suse.de>
This commit is contained in:
Alexey Kardashevskiy 2013-09-27 18:11:51 +10:00 committed by Alexander Graf
parent 3bf6eedd4b
commit dcb861cb88
1 changed files with 4 additions and 0 deletions
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4
hw/ppc/spapr.c
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@ -422,6 +422,10 @@ static void *spapr_create_fdt_skel(const char *cpu_model,
_FDT((fdt_property(fdt, "ibm,ppc-interrupt-gserver#s",
gservers_prop, sizeof(gservers_prop))));
if (env->spr_cb[SPR_PURR].oea_read) {
_FDT((fdt_property(fdt, "ibm,purr", NULL, 0)));
}
if (env->mmu_model & POWERPC_MMU_1TSEG) {
_FDT((fdt_property(fdt, "ibm,processor-segment-sizes",
segs, sizeof(segs))));