[libvirt][PATCH v4 3/4] qemu: Add command-line to enable SGX

[Haibin Huang]

From: Lin Yang <lin.a.yang at intel.com>

If SGX is defined in domain, add the argument to enable
SGX in -cpu <model>:

    -cpu <model>,+sgx,+sgx-debug,+sgx1,+sgx-encls-c,
    +sgx-enclv,+sgx-exinfo,+sgx-kss,+sgx-mode64,
    +sgx-provisionkey,+sgx-tokenkey,+sgx2,+sgxlc
---
 src/qemu/qemu_command.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c
index 2c3785886c..fb05acbc94 100644
--- a/src/qemu/qemu_command.c
+++ b/src/qemu/qemu_command.c
@@ -6405,6 +6405,12 @@ qemuBuildCpuModelArgStr(virQEMUDriverPtr driver,
 
     case VIR_CPU_MODE_CUSTOM:
         virBufferAdd(buf, cpu->model, -1);
+        if(def->sgx)
+            virBufferAdd(buf,
+                         ",+sgx,+sgx-debug,+sgx1,+sgx-encls-c,+sgx-enclv,+sgx-exinfo,"
+                         "+sgx-kss,+sgx-mode64,+sgx-provisionkey,+sgx-tokenkey,+sgx2,"
+                         "+sgxlc",
+                         -1);
         break;
 
     case VIR_CPU_MODE_LAST:
-- 
2.17.1