'dummy' helpers are specific to accelerator implementations,
no need to expose them via "system/cpus.h".

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
---
 MAINTAINERS           |  1 +
 accel/dummy-cpus.h    | 14 ++++++++++++++
 include/system/cpus.h |  5 -----
 accel/dummy-cpus.c    |  1 +
 accel/qtest/qtest.c   |  1 +
 accel/xen/xen-all.c   |  1 +
 6 files changed, 18 insertions(+), 5 deletions(-)
 create mode 100644 accel/dummy-cpus.h

diff --git a/MAINTAINERS b/MAINTAINERS
index b1cbfe115bc..37d02b2313c 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -503,6 +503,7 @@ F: include/system/accel-*.h
 F: include/system/cpus.h
 F: include/accel/accel-cpu*.h
 F: accel/accel-*.?
+F: accel/dummy-cpus.?
 F: accel/Makefile.objs
 F: accel/stubs/Makefile.objs
 F: cpu-common.c
diff --git a/accel/dummy-cpus.h b/accel/dummy-cpus.h
new file mode 100644
index 00000000000..d18dd0fdc51
--- /dev/null
+++ b/accel/dummy-cpus.h
@@ -0,0 +1,14 @@
+/*
+ * Dummy cpu thread code
+ *
+ * Copyright IBM, Corp. 2011
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
+
+#ifndef ACCEL_DUMMY_CPUS_H
+#define ACCEL_DUMMY_CPUS_H
+
+void dummy_start_vcpu_thread(CPUState *cpu);
+
+#endif
diff --git a/include/system/cpus.h b/include/system/cpus.h
index 3226c765d01..69be6a77a75 100644
--- a/include/system/cpus.h
+++ b/include/system/cpus.h
@@ -7,11 +7,6 @@ void cpus_register_accel(const AccelOpsClass *i);
 /* return registers ops */
 const AccelOpsClass *cpus_get_accel(void);
 
-/* accel/dummy-cpus.c */
-
-/* Create a dummy vcpu for AccelOpsClass->create_vcpu_thread */
-void dummy_start_vcpu_thread(CPUState *);
-
 /* interface available for cpus accelerator threads */
 
 /* For temporary buffers for forming a name */
diff --git a/accel/dummy-cpus.c b/accel/dummy-cpus.c
index 867276144fa..03cfc0fa01e 100644
--- a/accel/dummy-cpus.c
+++ b/accel/dummy-cpus.c
@@ -17,6 +17,7 @@
 #include "qemu/guest-random.h"
 #include "qemu/main-loop.h"
 #include "hw/core/cpu.h"
+#include "accel/dummy-cpus.h"
 
 static void *dummy_cpu_thread_fn(void *arg)
 {
diff --git a/accel/qtest/qtest.c b/accel/qtest/qtest.c
index 92bed9264ce..612cede160b 100644
--- a/accel/qtest/qtest.c
+++ b/accel/qtest/qtest.c
@@ -24,6 +24,7 @@
 #include "qemu/guest-random.h"
 #include "qemu/main-loop.h"
 #include "hw/core/cpu.h"
+#include "accel/dummy-cpus.h"
 
 static int64_t qtest_clock_counter;
 
diff --git a/accel/xen/xen-all.c b/accel/xen/xen-all.c
index de52a8f882a..c150dd43cab 100644
--- a/accel/xen/xen-all.c
+++ b/accel/xen/xen-all.c
@@ -18,6 +18,7 @@
 #include "hw/xen/xen_igd.h"
 #include "chardev/char.h"
 #include "qemu/accel.h"
+#include "accel/dummy-cpus.h"
 #include "system/accel-ops.h"
 #include "system/cpus.h"
 #include "system/xen.h"
-- 
2.49.0

On Thu, Jul 03, 2025 at 07:32:32PM +0200, Philippe Mathieu-Daudé wrote:
> Date: Thu,  3 Jul 2025 19:32:32 +0200
> From: Philippe Mathieu-Daudé <philmd@linaro.org>
> Subject: [PATCH v6 26/39] accel/dummy: Extract 'dummy-cpus.h' header from
>  'system/cpus.h'
> X-Mailer: git-send-email 2.49.0
> 
> 'dummy' helpers are specific to accelerator implementations,
> no need to expose them via "system/cpus.h".
> 
> Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
> ---
>  MAINTAINERS           |  1 +
>  accel/dummy-cpus.h    | 14 ++++++++++++++
>  include/system/cpus.h |  5 -----
>  accel/dummy-cpus.c    |  1 +
>  accel/qtest/qtest.c   |  1 +
>  accel/xen/xen-all.c   |  1 +
>  6 files changed, 18 insertions(+), 5 deletions(-)
>  create mode 100644 accel/dummy-cpus.h

Reviewed-by: Zhao Liu <zhao1.liu@intel.com>

On 7/4/2025 1:32 AM, Philippe Mathieu-Daudé wrote:
> 'dummy' helpers are specific to accelerator implementations,
> no need to expose them via "system/cpus.h".
> 
> Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>

Reviewed-by: Xiaoyao Li <xiaoyao.li@intel.com>