diff --git a/cpus.c b/cpus.c
index 43676fa1f3..ea29584397 100644
--- a/cpus.c
+++ b/cpus.c
@@ -1558,22 +1558,29 @@ CpuInfoList *qmp_query_cpus(Error **errp)
         info->value->qom_path = object_get_canonical_path(OBJECT(cpu));
         info->value->thread_id = cpu->thread_id;
 #if defined(TARGET_I386)
-        info->value->has_pc = true;
-        info->value->pc = env->eip + env->segs[R_CS].base;
+        info->value->arch = CPU_INFO_ARCH_X86;
+        info->value->u.x86 = g_new0(CpuInfoX86, 1);
+        info->value->u.x86->pc = env->eip + env->segs[R_CS].base;
 #elif defined(TARGET_PPC)
-        info->value->has_nip = true;
-        info->value->nip = env->nip;
+        info->value->arch = CPU_INFO_ARCH_PPC;
+        info->value->u.ppc = g_new0(CpuInfoPPC, 1);
+        info->value->u.ppc->nip = env->nip;
 #elif defined(TARGET_SPARC)
-        info->value->has_pc = true;
-        info->value->pc = env->pc;
-        info->value->has_npc = true;
-        info->value->npc = env->npc;
+        info->value->arch = CPU_INFO_ARCH_SPARC;
+        info->value->u.sparc = g_new0(CpuInfoSPARC, 1);
+        info->value->u.sparc->pc = env->pc;
+        info->value->u.sparc->npc = env->npc;
 #elif defined(TARGET_MIPS)
-        info->value->has_PC = true;
-        info->value->PC = env->active_tc.PC;
+        info->value->arch = CPU_INFO_ARCH_MIPS;
+        info->value->u.mips = g_new0(CpuInfoMIPS, 1);
+        info->value->u.mips->PC = env->active_tc.PC;
 #elif defined(TARGET_TRICORE)
-        info->value->has_PC = true;
-        info->value->PC = env->PC;
+        info->value->arch = CPU_INFO_ARCH_TRICORE;
+        info->value->u.tricore = g_new0(CpuInfoTricore, 1);
+        info->value->u.tricore->PC = env->PC;
+#else
+        info->value->arch = CPU_INFO_ARCH_OTHER;
+        info->value->u.other = g_new0(CpuInfoOther, 1);
 #endif
 
         /* XXX: waiting for the qapi to support GSList */
diff --git a/hmp.c b/hmp.c
index 1b402c4b74..c2b2c161c8 100644
--- a/hmp.c
+++ b/hmp.c
@@ -311,17 +311,25 @@ void hmp_info_cpus(Monitor *mon, const QDict *qdict)
 
         monitor_printf(mon, "%c CPU #%" PRId64 ":", active, cpu->value->CPU);
 
-        if (cpu->value->has_pc) {
-            monitor_printf(mon, " pc=0x%016" PRIx64, cpu->value->pc);
-        }
-        if (cpu->value->has_nip) {
-            monitor_printf(mon, " nip=0x%016" PRIx64, cpu->value->nip);
-        }
-        if (cpu->value->has_npc) {
-            monitor_printf(mon, " npc=0x%016" PRIx64, cpu->value->npc);
-        }
-        if (cpu->value->has_PC) {
-            monitor_printf(mon, " PC=0x%016" PRIx64, cpu->value->PC);
+        switch (cpu->value->arch) {
+        case CPU_INFO_ARCH_X86:
+            monitor_printf(mon, " pc=0x%016" PRIx64, cpu->value->u.x86->pc);
+            break;
+        case CPU_INFO_ARCH_PPC:
+            monitor_printf(mon, " nip=0x%016" PRIx64, cpu->value->u.ppc->nip);
+            break;
+        case CPU_INFO_ARCH_SPARC:
+            monitor_printf(mon, " pc=0x%016" PRIx64, cpu->value->u.sparc->pc);
+            monitor_printf(mon, " npc=0x%016" PRIx64, cpu->value->u.sparc->npc);
+            break;
+        case CPU_INFO_ARCH_MIPS:
+            monitor_printf(mon, " PC=0x%016" PRIx64, cpu->value->u.mips->PC);
+            break;
+        case CPU_INFO_ARCH_TRICORE:
+            monitor_printf(mon, " PC=0x%016" PRIx64, cpu->value->u.tricore->PC);
+            break;
+        default:
+            break;
         }
 
         if (cpu->value->halted) {
diff --git a/qapi-schema.json b/qapi-schema.json
index 8b1a423fa7..f014a80f72 100644
--- a/qapi-schema.json
+++ b/qapi-schema.json
@@ -744,43 +744,125 @@
 { 'command': 'query-mice', 'returns': ['MouseInfo'] }
 
 ##
-# @CpuInfo:
+# @CpuInfoArch:
 #
-# Information about a virtual CPU
+# An enumeration of cpu types that enable additional information during
+# @query-cpus.
+#
+# Since: 2.6
+##
+{ 'enum': 'CpuInfoArch',
+  'data': ['x86', 'sparc', 'ppc', 'mips', 'tricore', 'other' ] }
+
+##
+# @CpuInfoBase:
+#
+# Common information about a virtual CPU
 #
 # @CPU: the index of the virtual CPU
 #
-# @current: this only exists for backwards compatible and should be ignored
+# @current: this only exists for backwards compatibility and should be ignored
 #
 # @halted: true if the virtual CPU is in the halt state.  Halt usually refers
 #          to a processor specific low power mode.
 #
 # @qom_path: path to the CPU object in the QOM tree (since 2.4)
 #
-# @pc: #optional If the target is i386 or x86_64, this is the 64-bit instruction
-#                pointer.
-#                If the target is Sparc, this is the PC component of the
-#                instruction pointer.
-#
-# @nip: #optional If the target is PPC, the instruction pointer
-#
-# @npc: #optional If the target is Sparc, the NPC component of the instruction
-#                 pointer
-#
-# @PC: #optional If the target is MIPS, the instruction pointer
-#
 # @thread_id: ID of the underlying host thread
 #
+# @arch: architecture of the cpu, which determines which additional fields
+#        will be listed (since 2.6)
+#
 # Since: 0.14.0
 #
 # Notes: @halted is a transient state that changes frequently.  By the time the
 #        data is sent to the client, the guest may no longer be halted.
 ##
-{ 'struct': 'CpuInfo',
+{ 'struct': 'CpuInfoBase',
   'data': {'CPU': 'int', 'current': 'bool', 'halted': 'bool',
-           'qom_path': 'str',
-           '*pc': 'int', '*nip': 'int', '*npc': 'int', '*PC': 'int',
-           'thread_id': 'int'} }
+           'qom_path': 'str', 'thread_id': 'int', 'arch': 'CpuInfoArch' } }
+
+##
+# @CpuInfo:
+#
+# Information about a virtual CPU
+#
+# Since: 0.14.0
+##
+{ 'union': 'CpuInfo', 'base': 'CpuInfoBase', 'discriminator': 'arch',
+  'data': { 'x86': 'CpuInfoX86',
+            'sparc': 'CpuInfoSPARC',
+            'ppc': 'CpuInfoPPC',
+            'mips': 'CpuInfoMIPS',
+            'tricore': 'CpuInfoTricore',
+            'other': 'CpuInfoOther' } }
+
+##
+# @CpuInfoX86:
+#
+# Additional information about a virtual i386 or x86_64 CPU
+#
+# @pc: the 64-bit instruction pointer
+#
+# Since 2.6
+##
+{ 'struct': 'CpuInfoX86', 'data': { 'pc': 'int' } }
+
+##
+# @CpuInfoSPARC:
+#
+# Additional information about a virtual SPARC CPU
+#
+# @pc: the PC component of the instruction pointer
+#
+# @npc: the NPC component of the instruction pointer
+#
+# Since 2.6
+##
+{ 'struct': 'CpuInfoSPARC', 'data': { 'pc': 'int', 'npc': 'int' } }
+
+##
+# @CpuInfoPPC:
+#
+# Additional information about a virtual PPC CPU
+#
+# @nip: the instruction pointer
+#
+# Since 2.6
+##
+{ 'struct': 'CpuInfoPPC', 'data': { 'nip': 'int' } }
+
+##
+# @CpuInfoMIPS:
+#
+# Additional information about a virtual MIPS CPU
+#
+# @PC: the instruction pointer
+#
+# Since 2.6
+##
+{ 'struct': 'CpuInfoMIPS', 'data': { 'PC': 'int' } }
+
+##
+# @CpuInfoTricore:
+#
+# Additional information about a virtual Tricore CPU
+#
+# @PC: the instruction pointer
+#
+# Since 2.6
+##
+{ 'struct': 'CpuInfoTricore', 'data': { 'PC': 'int' } }
+
+##
+# @CpuInfoOther:
+#
+# No additional information is available about the virtual CPU
+#
+# Since 2.6
+#
+##
+{ 'struct': 'CpuInfoOther', 'data': { } }
 
 ##
 # @query-cpus:
diff --git a/qmp-commands.hx b/qmp-commands.hx
index 20a92f9985..6f3a25d058 100644
--- a/qmp-commands.hx
+++ b/qmp-commands.hx
@@ -2765,6 +2765,8 @@ Return a json-array. Each CPU is represented by a json-object, which contains:
 - "current": true if this is the current CPU, false otherwise (json-bool)
 - "halted": true if the cpu is halted, false otherwise (json-bool)
 - "qom_path": path to the CPU object in the QOM tree (json-str)
+- "arch": architecture of the cpu, which determines what additional
+          keys will be present (json-str)
 - Current program counter. The key's name depends on the architecture:
      "pc": i386/x86_64 (json-int)
      "nip": PPC (json-int)
@@ -2782,6 +2784,7 @@ Example:
             "current":true,
             "halted":false,
             "qom_path":"/machine/unattached/device[0]",
+            "arch":"x86",
             "pc":3227107138,
             "thread_id":3134
          },
@@ -2790,6 +2793,7 @@ Example:
             "current":false,
             "halted":true,
             "qom_path":"/machine/unattached/device[2]",
+            "arch":"x86",
             "pc":7108165,
             "thread_id":3135
          }