On 08/09/21 10:19, Yang Zhong wrote:
+    if (sgx_enabled) {
+        MachineState *ms = MACHINE(qdev_get_machine());
+        X86MachineState *x86ms = X86_MACHINE(qdev_get_machine());
+

You can use object_dynamic_cast(ms, TYPE_PC_MACHINE), something like:


PCMachineState *pcms =
    object_dynamic_cast(qdev_get_machine(), TYPE_PC_MACHINE);
X86MachineState *x86ms;

if (!pcms) {
    return NULL;
}
x86ms = X86_MACHINE(pcms);
if (!x86ms->sgx_epc_list) {
    return NULL;
}
info = g_new0(SGXInfo, 1);
...
return info;

Also please squash this patch directly into patch 3 that introduces sgx_get_info.

Paolo


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