From: Zhao Liu <zhao1....@intel.com>
QEMU crashes (Segmentation fault) when getting cxl-fmw property via
qmp:
(QEMU) qom-get path=machine property=cxl-fmw
This issue is caused by accessing wrong callback (opaque) type in
machine_get_cfmw().
cxl_machine_init() sets the callback as `CXLState *` type but
machine_get_cfmw() treats the callback as
`CXLFixedMemoryWindowOptionsList **`.
Fix this error by casting opaque to `CXLState *` type in
machine_get_cfmw().
Fixes: 03b39fcf64bc ("hw/cxl: Make the CXL fixed memory window setup a machine
parameter.")
Signed-off-by: Zhao Liu <zhao1....@intel.com>
Reviewed-by: Li Zhijian <lizhij...@fujitsu.com>
Reviewed-by: Xingtao Yao <yaoxt.f...@fujitsu.com>
Link:
https://lore.kernel.org/r/20240704093404.1848132-1-zhao1....@linux.intel.com
Signed-off-by: Jonathan Cameron <jonathan.came...@huawei.com>
Message-Id: <20240705113956.941732-2-jonathan.came...@huawei.com>
Reviewed-by: Michael S. Tsirkin <m...@redhat.com>
Signed-off-by: Michael S. Tsirkin <m...@redhat.com>
---
hw/cxl/cxl-host.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/hw/cxl/cxl-host.c b/hw/cxl/cxl-host.c
index c5f5fcfd64..e9f2543c43 100644
--- a/hw/cxl/cxl-host.c
+++ b/hw/cxl/cxl-host.c
@@ -315,7 +315,8 @@ static void machine_set_cxl(Object *obj, Visitor *v, const
char *name,
static void machine_get_cfmw(Object *obj, Visitor *v, const char *name,
void *opaque, Error **errp)
{
- CXLFixedMemoryWindowOptionsList **list = opaque;
+ CXLState *state = opaque;
+ CXLFixedMemoryWindowOptionsList **list = &state->cfmw_list;
visit_type_CXLFixedMemoryWindowOptionsList(v, name, list, errp);
}
--
MST
