On 07/20/2015 11:15 PM, Eduardo Habkost wrote:
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, name=name@entry=0x5555558ec922 "mem-merge", defval=defval@entry=true, del=del@entry=false) at qemu/util/qemu-option.c:388 #5 0x00005555558bbb5a in qemu_opt_get_bool (opts=<optimized out>, name=name@entry=0x5555558ec922 "mem-merge", defval=defval@entry=true) 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 <ehabk...@redhat.com> --- 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",
Reviewed-by: Marcel Apfelbaum <mar...@redhat.com>
