This fixes the following crash, introduced by commit
49d2e648e8087d154d8bf8b91f27c8e05e79d5a6:
$ gdb --args qemu-system-x86_64 -machine pc,mem-merge=off -object
memory-backend-ram,id=ram-node0,size=1024
[...]
Program received signal SIGABRT, Aborted.
(gdb) bt
#0 0x00007ffff253b8c7 in raise () at /lib64/libc.so.6
#1 0x00007ffff253d52a in abort () at /lib64/libc.so.6
#2 0x00007ffff253446d in __assert_fail_base () at /lib64/libc.so.6
#3 0x00007ffff2534522 in () at /lib64/libc.so.6
#4 0x00005555558bb80a in qemu_opt_get_bool_helper (opts=0x55555621b650,
address@hidden "mem-merge", address@hidden, address@hidden) at
qemu/util/qemu-option.c:388
#5 0x00005555558bbb5a in qemu_opt_get_bool (opts=<optimized out>, address@hidden
"mem-merge", address@hidden) at qemu/util/qemu-option.c:398
#6 0x0000555555720a24 in host_memory_backend_init (obj=0x5555562ac970) at
qemu/backends/hostmem.c:226
Instead of using qemu_opt_get_bool(), that didn't work with
qemu_machine_opts for a long time, we can use the corresponding
MachineState fields.
Signed-off-by: Eduardo Habkost <address@hidden>
---
Changes v1 -> v2:
* Use qdev_get_machine() instead of current_machine
* Use the MachineState field wrappers intead of QOM properties,
to allow compile-time type checks
---
backends/hostmem.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/backends/hostmem.c b/backends/hostmem.c
index 61c1ac0..41ba2af 100644
--- a/backends/hostmem.c
+++ b/backends/hostmem.c
@@ -10,6 +10,7 @@
* See the COPYING file in the top-level directory.
*/
#include "sysemu/hostmem.h"
+#include "hw/boards.h"
#include "qapi/visitor.h"
#include "qapi-types.h"
#include "qapi-visit.h"
@@ -222,11 +223,10 @@ static void host_memory_backend_set_prealloc(Object *obj,
bool value,
static void host_memory_backend_init(Object *obj)
{
HostMemoryBackend *backend = MEMORY_BACKEND(obj);
+ MachineState *machine = MACHINE(qdev_get_machine());
- backend->merge = qemu_opt_get_bool(qemu_get_machine_opts(),
- "mem-merge", true);
- backend->dump = qemu_opt_get_bool(qemu_get_machine_opts(),
- "dump-guest-core", true);
+ backend->merge = machine_mem_merge(machine);
+ backend->dump = machine_dump_guest_core(machine);
backend->prealloc = mem_prealloc;
object_property_add_bool(obj, "merge",