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spapr: Don't create ibm,dynamic-reconfiguration-memory w/o DR LMBs

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If guest doesn't have any dynamically reconfigurable (DR) logical memory
blocks (LMB), then we shouldn't create ibm,dynamic-reconfiguration-memory
device tree node.

Signed-off-by: Bharata B Rao <bharata@linux.vnet.ibm.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This commit is contained in:
Bharata B Rao 2016-01-19 10:09:21 +05:30 committed by David Gibson
parent 27ac3e06d5
commit 16c25aef53
1 changed files with 8 additions and 1 deletions
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9
hw/ppc/spapr.c
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@ -763,6 +763,13 @@ static int spapr_populate_drconf_memory(sPAPRMachineState *spapr, void *fdt)
uint32_t *int_buf, *cur_index, buf_len;
int nr_nodes = nb_numa_nodes ? nb_numa_nodes : 1;
/*
* Don't create the node if there are no DR LMBs.
*/
if (!nr_lmbs) {
return 0;
}
/*
* Allocate enough buffer size to fit in ibm,dynamic-memory
* or ibm,associativity-lookup-arrays
@ -869,7 +876,7 @@ int spapr_h_cas_compose_response(sPAPRMachineState *spapr,
_FDT((spapr_fixup_cpu_dt(fdt, spapr)));
}
/* Generate memory nodes or ibm,dynamic-reconfiguration-memory node */
/* Generate ibm,dynamic-reconfiguration-memory node if required */
if (memory_update && smc->dr_lmb_enabled) {
_FDT((spapr_populate_drconf_memory(spapr, fdt)));
}