arm/cpu: assign arm_get_arch_id handler to get_arch_id hook

This hook will be called in get_cpu_status, which is called
during cpu hotplug.

Signed-off-by: Keqian Zhu <zhukeqian1@huawei.com>
Signed-off-by: Salil Mehta <salil.mehta@huawei.com>
(cherry picked from commit dc4b675a897d6094b60ef462482e03b2905e1737)

arm-cpu-assign-arm_get_arch_id-handler-to-get_arch_i.patch

@@ -0,0 +1,43 @@
+From 42072fd4b33125959d825a0c5cee0d1122072f71 Mon Sep 17 00:00:00 2001
+From: Keqian Zhu <zhukeqian1@huawei.com>
+Date: Fri, 10 Apr 2020 10:17:27 +0800
+Subject: [PATCH] arm/cpu: assign arm_get_arch_id handler to get_arch_id hook
+
+This hook will be called in get_cpu_status, which is called
+during cpu hotplug.
+
+Signed-off-by: Keqian Zhu <zhukeqian1@huawei.com>
+Signed-off-by: Salil Mehta <salil.mehta@huawei.com>
+---
+ target/arm/cpu.c | 8 ++++++++
+ 1 file changed, 8 insertions(+)
+
+diff --git a/target/arm/cpu.c b/target/arm/cpu.c
+index 65163f5135..f06ba29885 100644
+--- a/target/arm/cpu.c
++++ b/target/arm/cpu.c
+@@ -2557,6 +2557,13 @@ static const struct TCGCPUOps arm_tcg_ops = {
+ };
+ #endif /* CONFIG_TCG */
+ 
++static int64_t arm_cpu_get_arch_id(CPUState *cs)
++{
++    ARMCPU *cpu = ARM_CPU(cs);
++
++    return cpu->mp_affinity;
++}
++
+ static void arm_cpu_class_init(ObjectClass *oc, void *data)
+ {
+     ARMCPUClass *acc = ARM_CPU_CLASS(oc);
+@@ -2575,6 +2582,7 @@ static void arm_cpu_class_init(ObjectClass *oc, void *data)
+     cc->set_pc = arm_cpu_set_pc;
+     cc->gdb_read_register = arm_cpu_gdb_read_register;
+     cc->gdb_write_register = arm_cpu_gdb_write_register;
++    cc->get_arch_id = arm_cpu_get_arch_id;
+ #ifndef CONFIG_USER_ONLY
+     cc->sysemu_ops = &arm_sysemu_ops;
+ #endif
+-- 
+2.27.0
+