commit 4336073b9b13943e050edfe9aebb99974c3b6ee1
author Philippe Mathieu-Daudé <f4bug@amsat.org> Mon May 17 12:51:28 2021 +0200
committer Richard Henderson <richard.henderson@linaro.org> Wed May 26 15:33:59 2021 -0700
tree f4a2f44855ad29dad392f2013dac2f3cadd41a71
parent 65c57115dfeef8d344052a0e2b9d156b652be478

cpu: Assert DeviceClass::vmsd is NULL on user emulation

Migration is specific to system emulation.

Restrict current DeviceClass::vmsd to sysemu using #ifdef'ry,
and assert in cpu_exec_realizefn() that dc->vmsd not set under
user emulation.

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20210517105140.1062037-12-f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

cpu.c

diff --git a/cpu.c b/cpu.c
index 34a0484..6fe4af2 100644
--- a/cpu.c
+++ b/cpu.c
@@ -141,6 +141,8 @@
 #endif /* CONFIG_TCG */
 
 #ifdef CONFIG_USER_ONLY
+    assert(qdev_get_vmsd(DEVICE(cpu)) == NULL ||
+           qdev_get_vmsd(DEVICE(cpu))->unmigratable);
     assert(cc->vmsd == NULL);
 #else
     if (qdev_get_vmsd(DEVICE(cpu)) == NULL) {