spapr: move h_home_node_associativity to spapr_numa.c

The implementation of this hypercall will be modified to use
spapr->numa_assoc_arrays input. Moving it to spapr_numa.c makes
make more sense.

Reviewed-by: Greg Kurz <groug@kaod.org>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Message-Id: <20200904172422.617460-2-danielhb413@gmail.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>

1 files changed, 45 insertions, 0 deletions

diff --git a/hw/ppc/spapr_numa.c b/hw/ppc/spapr_numa.c
index 9073dbb..e60587c 100644
--- a/hw/ppc/spapr_numa.c
+++ b/hw/ppc/spapr_numa.c
@@ -165,3 +165,48 @@ void spapr_numa_write_rtas_dt(SpaprMachineState *spapr, void *fdt, int rtas)
     _FDT(fdt_setprop(fdt, rtas, "ibm,max-associativity-domains",
                      maxdomains, sizeof(maxdomains)));
 }
+
+static target_ulong h_home_node_associativity(PowerPCCPU *cpu,
+                                              SpaprMachineState *spapr,
+                                              target_ulong opcode,
+                                              target_ulong *args)
+{
+    target_ulong flags = args[0];
+    target_ulong procno = args[1];
+    PowerPCCPU *tcpu;
+    int idx;
+
+    /* only support procno from H_REGISTER_VPA */
+    if (flags != 0x1) {
+        return H_FUNCTION;
+    }
+
+    tcpu = spapr_find_cpu(procno);
+    if (tcpu == NULL) {
+        return H_P2;
+    }
+
+    /* sequence is the same as in the "ibm,associativity" property */
+
+    idx = 0;
+#define ASSOCIATIVITY(a, b) (((uint64_t)(a) << 32) | \
+                             ((uint64_t)(b) & 0xffffffff))
+    args[idx++] = ASSOCIATIVITY(0, 0);
+    args[idx++] = ASSOCIATIVITY(0, tcpu->node_id);
+    args[idx++] = ASSOCIATIVITY(procno, -1);
+    for ( ; idx < 6; idx++) {
+        args[idx] = -1;
+    }
+#undef ASSOCIATIVITY
+
+    return H_SUCCESS;
+}
+
+static void spapr_numa_register_types(void)
+{
+    /* Virtual Processor Home Node */
+    spapr_register_hypercall(H_HOME_NODE_ASSOCIATIVITY,
+                             h_home_node_associativity);
+}
+
+type_init(spapr_numa_register_types)