[Qemu-devel] [RFC PATCH v4 10/20] vl: add memory encryption support

[Brijesh Singh <brijesh.singh@amd.com>]

If memory encryption is enabled then create memory encryption launch
context to ensure that bootstrap data (bios images) get encrypted. Also
release the encryption context after machine is succesfully created.

Signed-off-by: Brijesh Singh <brijesh.singh@amd.com>
---
 vl.c |   15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/vl.c b/vl.c
index 71b75ef..c6e7846 100644
--- a/vl.c
+++ b/vl.c
@@ -4521,6 +4521,14 @@ int main(int argc, char **argv, char **envp)
     current_machine->boot_order = boot_order;
     current_machine->cpu_model = cpu_model;
 
+    /* If memory encryption is enabled then create encryption context. */
+    if (kvm_memcrypt_enabled()) {
+        if (kvm_memcrypt_create_launch_context()) {
+            error_report("failed to create memory encryption context");
+            exit(1);
+        }
+    }
+
     machine_class->init(current_machine);
 
     realtime_init();
@@ -4671,6 +4679,13 @@ int main(int argc, char **argv, char **envp)
         vm_start();
     }
 
+    if (kvm_memcrypt_enabled()) {
+        if (kvm_memcrypt_release_launch_context()) {
+            error_report("failed to stop encryption context");
+            exit(1);
+        }
+    }
+
     os_setup_post();
 
     main_loop();