[libvirt][PATCH v5 2/6] qemu: Add command-line to generate SGX EPC memory backend
From: Lin Yang <lin.a.yang(a)intel.com>
According to the result parsing from xml, add the argument of
SGX EPC memory backend into QEMU command line:
-object memory-backend-epc,id=mem1,size=<epc_size>K,prealloc \
-sgx-epc id=epc1,memdev=mem1
---
src/qemu/qemu_command.c | 23 +++++++++++++++++++++++
1 file changed, 23 insertions(+)
diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c
index 01812cd39b..3993f95988 100644
--- a/src/qemu/qemu_command.c
+++ b/src/qemu/qemu_command.c
@@ -9424,6 +9424,27 @@ qemuBuildSEVCommandLine(virDomainObjPtr vm, virCommandPtr cmd,
return 0;
}
+
+static int
+qemuBuildSGXCommandLine(virCommandPtr cmd, virDomainSGXDefPtr sgx)
+{
+ if (!sgx)
+ return 0;
+
+ VIR_DEBUG("sgx->epc_size=%lluKiB", sgx->epc_size);
+
+ virCommandAddArg(cmd, "-object");
+ virCommandAddArgFormat(cmd,
+ "memory-backend-epc,id=mem1,size=%lluK,prealloc",
+ sgx->epc_size);
+
+ virCommandAddArg(cmd, "-sgx-epc");
+ virCommandAddArg(cmd, "id=epc1,memdev=mem1");
+
+ return 0;
+}
+
+
static int
qemuBuildVMCoreInfoCommandLine(virCommandPtr cmd,
const virDomainDef *def)
@@ -10114,6 +10135,8 @@ qemuBuildCommandLine(virQEMUDriverPtr driver,
if (qemuBuildSEVCommandLine(vm, cmd, def->sev) < 0)
return NULL;
+ if (qemuBuildSGXCommandLine(cmd, def->sgx) < 0)
+ return NULL;
if (snapshot)
virCommandAddArgList(cmd, "-loadvm", snapshot->def->name, NULL);
--
2.17.1