Author: nwhitehorn
Date: Sat Nov 25 21:46:51 2017
New Revision: 326204
URL: https://svnweb.freebsd.org/changeset/base/326204
Log:
Do not bind to CPUs with SMT, which use a different CPU numbering convention
that does not play well with this driver.
MFC after: 2 weeks
Modified:
head/sys/dev/ofw/ofw_cpu.c
Modified: head/sys/dev/ofw/ofw_cpu.c
==============================================================================
--- head/sys/dev/ofw/ofw_cpu.c Sat Nov 25 21:45:51 2017 (r326203)
+++ head/sys/dev/ofw/ofw_cpu.c Sat Nov 25 21:46:51 2017 (r326204)
@@ -191,6 +191,10 @@ ofw_cpu_probe(device_t dev)
if (type == NULL || strcmp(type, "cpu") != 0)
return (ENXIO);
+ /* Skip SMT CPUs, which we can't reasonably represent with this code */
+ if (OF_hasprop(ofw_bus_get_node(dev), "ibm,ppc-interrupt-server#s"))
+ return (ENXIO);
+
device_set_desc(dev, "Open Firmware CPU");
return (0);
}
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