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>
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@ -422,6 +422,10 @@ static void *spapr_create_fdt_skel(const char *cpu_model,
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_FDT((fdt_property(fdt, "ibm,ppc-interrupt-gserver#s",
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_FDT((fdt_property(fdt, "ibm,ppc-interrupt-gserver#s",
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gservers_prop, sizeof(gservers_prop))));
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gservers_prop, sizeof(gservers_prop))));
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if (env->spr_cb[SPR_PURR].oea_read) {
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_FDT((fdt_property(fdt, "ibm,purr", NULL, 0)));
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}
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if (env->mmu_model & POWERPC_MMU_1TSEG) {
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if (env->mmu_model & POWERPC_MMU_1TSEG) {
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_FDT((fdt_property(fdt, "ibm,processor-segment-sizes",
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_FDT((fdt_property(fdt, "ibm,processor-segment-sizes",
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segs, sizeof(segs))));
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segs, sizeof(segs))));
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