D48060.diff
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	Index: sys/mips/mips/mp_machdep.c
	===================================================================
	--- sys/mips/mips/mp_machdep.c
	+++ sys/mips/mips/mp_machdep.c
	@@ -60,6 +60,7 @@

	static volatile int aps_ready;
	static volatile int mp_naps;
	+static volatile register_t saved_hwrena;

	static void
	ipi_send(struct pcpu *pc, int ipi)
	@@ -246,6 +247,10 @@
	int error, cpuid;
	cpuset_t cpumask;

	+ /* Stash the BSP HWREna to share with the APs. */
	+ saved_hwrena = mips_rd_hwrena();
	+ mips_sync();
	+
	mtx_init(&ap_boot_mtx, "ap boot", NULL, MTX_SPIN);

	CPU_ZERO(&all_cpus);
	@@ -292,6 +297,9 @@

	mips_wr_entryhi(0);

	+ /* Load up the BSP's hwrena, so it's on all CPUs */
	+ mips_wr_hwrena(saved_hwrena);
	+
	pcpu_init(PCPU_ADDR(cpuid), cpuid, sizeof(struct pcpu));
	dpcpu_init(dpcpu, cpuid);