[PATCH v6 27/60] i386/tdx: Finalize TDX VM

Xiaoyao Li
2024-11-05T06:38:19Z

Invoke KVM_TDX_FINALIZE_VM to finalize the TD's measurement and make
the TD vCPUs runnable once machine initialization is complete.

Signed-off-by: Xiaoyao Li <xiaoyao.li@intel.com>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
---
target/i386/kvm/tdx.c | 7 +++++++
1 file changed, 7 insertions(+)

diff --git a/target/i386/kvm/tdx.c b/target/i386/kvm/tdx.c
index 1abca7a5be6d..33d7ed039051 100644
--- a/target/i386/kvm/tdx.c
+++ b/target/i386/kvm/tdx.c
@@ -335,6 +335,13 @@ static void tdx_finalize_vm(Notifier *notifier, void *unused)
*/
ram_block = tdx_guest->tdvf_mr->ram_block;
ram_block_discard_range(ram_block, 0, ram_block->max_length);
+
+ r = tdx_vm_ioctl(KVM_TDX_FINALIZE_VM, 0, NULL);
+ if (r < 0) {
+ error_report("KVM_TDX_FINALIZE_VM failed %s", strerror(-r));
+ exit(0);
+ }
+ CONFIDENTIAL_GUEST_SUPPORT(tdx_guest)->ready = true;
}

static Notifier tdx_machine_done_notify = {
--
2.34.1