From: Pavel Hrdina <phrdina@redhat.com>
Date: Thu, 10 Jun 2021 13:24:19 +0000 (+0200)
Subject: qemu_command: use confidential-guest-support if available
X-Git-Tag: v7.5.0-rc1~122
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=241969d465c5de4d9ebf51de7e82e1b25143ba82;p=thirdparty%2Flibvirt.git

qemu_command: use confidential-guest-support if available

Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
---

diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c
index 56d0e8bea8..1e90b59d17 100644
--- a/src/qemu/qemu_command.c
+++ b/src/qemu/qemu_command.c
@@ -6974,8 +6974,13 @@ qemuBuildMachineCommandLine(virCommand *cmd,
     if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_LOADPARM))
         qemuAppendLoadparmMachineParm(&buf, def);
 
-    if (def->sev)
-        virBufferAddLit(&buf, ",memory-encryption=sev0");
+    if (def->sev) {
+        if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_MACHINE_CONFIDENTAL_GUEST_SUPPORT)) {
+            virBufferAddLit(&buf, ",confidential-guest-support=sev0");
+        } else {
+            virBufferAddLit(&buf, ",memory-encryption=sev0");
+        }
+    }
 
     if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_BLOCKDEV)) {
         if (priv->pflash0)