acrn-manager message structure has a flexible member
payload[0], that risks to out-of-boundary memory access,
and usage of uninitialized variable.
And the req/ack message pairs has various types, which
extend mngr_msg. mngr_send_msg() requires programmer cast
the type of input messages to struct mngr_msg, that is
inconvenient.
We replace payload[0] with an union, which contains all
payload data. So that type cast for mngr_send_msg() is no
longer needed. And we can avoid potential out-of-boundary
memory accessing and using of uninitialized variable
Acked-by: Yan Like <like.yan@intel.com>
Signed-off-by: Tao Yuhong <yuhong.tao@intel.com>
There are some problems to use VM operations in a deamon process,
such as Acrnd. the list_vm() does not return VM informations, it
just print VM information to stdio, so we have get_vm_list()
to get VM list head vmngr_head; get_vm_list() always creates a
new fresh vm list every time, and must use put_vm_list() to delete
old list. So Acrnd need to create and destroy vm list frequently.
In fact we just need the vmngr_head to be an extern variable. And
to make it refreshable.We can insert new VMs, remove dead ones,
and update their state.
Reviewed-by: Yan Like <like.yan@intel.com>
Signed-off-by: Tao Yuhong <yuhong.tao@intel.com>
There is a mistake on description for mngr_send_msg() in acrn_mngr.h
We mistake the ack_len to req_len
Acked-by: Eddie Dong <eddie.dong@intel.com>
Signed-off-by: Tao Yuhong <yuhong.tao@intel.com>
There are some inappropriate descrition related to mngr, like "vmm msg".
Replace all "vmm" with "mngr".
No functional change.
Signed-off-by: Kaige Fu <kaige.fu@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
We define messages into three types, accroding to which component is
responsible to handle it:
1. message handled by sos lifecycle service, from vm manager;
2. message handled by vm manager, from sos lifecycle service&dm;
3. message handled by dm, from vm manager.
Reviewed-by: Kaige Fu <kaige.fu@intel.com>
Reviewed-by: Geoffroy Van Cutsem <geoffroy.vancutsem@intel.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Reviewed-by: Wang, Yu <yu1.wang@intel.com>
signed-off-by: Yan Like <like.yan@intel.com>
Signed-off-by: Tao Yuhong <yuhong.tao@intel.com>
Add lib to help IPC between components, including SOS lifecycle service,
acrn manager and devicemodule.
Following helper functions are included:
int mngr_open_un() - create a descripter for vm management IPC
void mngr_close() - close descripter and release the resouces
int mngr_add_handler() - add a handler for message specified by msg
int mngr_send_msg() - send a message and wait for ack
Reviewed-by: Kaige Fu <kaige.fu@intel.com>
Reviewed-by: Geoffroy Van Cutsem <geoffroy.vancutsem@intel.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Reviewed-by: Wang, Yu <yu1.wang@intel.com>
Sigbed-off-by: Yan Like <like.yan@intel.com>
Signed-off-by: Tao Yuhong <yuhong.tao@intel.com>
yuhong.tao@intel.com