[RFC PATCH v4 20/36] i386/tdx: Register a machine_init_done callback for TD

[Xiaoyao Li]

Before a TD can run, it needs to
 - setup/configure TD HOB list;
 - initialize TDVF into TD's private memory;
 - initialize TD vcpu state;

Register a machine_init_done callback to all those stuff.

Signed-off-by: Xiaoyao Li <xiaoyao.li@intel.com>
---
 target/i386/kvm/tdx.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/target/i386/kvm/tdx.c b/target/i386/kvm/tdx.c
index 2953d2728b32..a95d5b894c34 100644
--- a/target/i386/kvm/tdx.c
+++ b/target/i386/kvm/tdx.c
@@ -16,6 +16,7 @@
 #include "qom/object_interfaces.h"
 #include "standard-headers/asm-x86/kvm_para.h"
 #include "sysemu/kvm.h"
+#include "sysemu/sysemu.h"
 
 #include "hw/i386/x86.h"
 #include "kvm_i386.h"
@@ -126,6 +127,15 @@ static void get_tdx_capabilities(void)
     tdx_caps = caps;
 }
 
+static void tdx_finalize_vm(Notifier *notifier, void *unused)
+{
+    /* TODO */
+}
+
+static Notifier tdx_machine_done_notify = {
+    .notify = tdx_finalize_vm,
+};
+
 int tdx_kvm_init(MachineState *ms, Error **errp)
 {
     TdxGuest *tdx = (TdxGuest *)object_dynamic_cast(OBJECT(ms->cgs),
@@ -144,6 +154,8 @@ int tdx_kvm_init(MachineState *ms, Error **errp)
      */
     kvm_readonly_mem_allowed = false;
 
+    qemu_add_machine_init_done_notifier(&tdx_machine_done_notify);
+
     tdx_guest = tdx;
 
     return 0;
-- 
2.27.0