From: Zhao Liu <[email protected]>
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 <[email protected]>
Reviewed-by: Li Zhijian <[email protected]>
Reviewed-by: Xingtao Yao <[email protected]>
Link:
https://lore.kernel.org/r/[email protected]
Signed-off-by: Jonathan Cameron <[email protected]>
Message-Id: <[email protected]>
Reviewed-by: Michael S. Tsirkin <[email protected]>
Signed-off-by: Michael S. Tsirkin <[email protected]>
(cherry picked from commit a207d5f87d66f7933b50677e047498fc4af63e1f)
Signed-off-by: Michael Tokarev <[email protected]>
diff --git a/hw/cxl/cxl-host.c b/hw/cxl/cxl-host.c
index 2aa776c79c..85ca88bf7a 100644
--- a/hw/cxl/cxl-host.c
+++ b/hw/cxl/cxl-host.c
@@ -314,7 +314,8 @@ 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);
}
--
2.39.2
