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xlnx-zynqmp: Don't create rpu-cluster if there are no RPUs

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If we aren't going to create any RPUs, then don't create the
rpu-cluster unit. This allows us to add an assertion to the
cluster object that it contains at least one CPU, which helps
to avoid bugs in creating clusters and putting CPUs in them.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-id: 20190121184314.14311-1-peter.maydell@linaro.org
This commit is contained in:
Peter Maydell
2019-01-29 11:46:05 +00:00
parent b94e809d3e
commit e5b517536c
1 changed files with 5 additions and 0 deletions
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hw/arm/xlnx-zynqmp.c
+5
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@@ -178,6 +178,11 @@ static void xlnx_zynqmp_create_rpu(XlnxZynqMPState *s, const char *boot_cpu,
int i;
int num_rpus = MIN(smp_cpus - XLNX_ZYNQMP_NUM_APU_CPUS, XLNX_ZYNQMP_NUM_RPU_CPUS);
if (num_rpus <= 0) {
/* Don't create rpu-cluster object if there's nothing to put in it */
return;
}
object_initialize_child(OBJECT(s), "rpu-cluster", &s->rpu_cluster,
sizeof(s->rpu_cluster), TYPE_CPU_CLUSTER,
&error_abort, NULL);