[libvirt] [RFC PATCH 10/11] qemu: introduce qemuBuildDimmDeviceStr
qemuBuildDimmDeviceStr being introduced is responsible for creating command
line argument for '-device' for given dimm device.
Signed-off-by: Zhu Guihua <zhugh.fnst(a)cn.fujitsu.com>
---
src/qemu/qemu_command.c | 50 +++++++++++++++++++++++++++++++++++++++++++++++++
src/qemu/qemu_command.h | 4 ++++
2 files changed, 54 insertions(+)
diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c
index 68fdab7..ff72f46 100644
--- a/src/qemu/qemu_command.c
+++ b/src/qemu/qemu_command.c
@@ -7735,6 +7735,49 @@ qemuBuildChrDeviceCommandLine(virCommandPtr cmd,
return 0;
}
+int
+qemuBuildDimmDeviceStr(char **deviceStr,
+ virDomainDimmDefPtr dev,
+ virQEMUCapsPtr qemuCaps)
+{
+ virBuffer buf = VIR_BUFFER_INITIALIZER;
+
+ if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_DEVICE_PC_DIMM)) {
+ virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
+ _("%s not supported in this QEMU binary"),
dev->driver);
+ goto error;
+ }
+
+ virBufferAsprintf(&buf,
"%s,id=%s,addr=%d,node=%d,slot=%d,memdev=obj%s",
+ dev->driver, dev->info.alias, dev->addr,
+ dev->node, dev->slot, dev->info.alias);
+
+ if (virBufferCheckError(&buf) < 0)
+ goto error;
+
+ *deviceStr = virBufferContentAndReset(&buf);
+ return 0;
+
+ error:
+ virBufferFreeAndReset(&buf);
+ return -1;
+}
+
+static int
+qemuBuildDimmDeviceCommandLine(virCommandPtr cmd,
+ virDomainDimmDefPtr dev,
+ virQEMUCapsPtr qemuCaps)
+{
+ char *devstr = NULL;
+
+ if (qemuBuildDimmDeviceStr(&devstr, dev, qemuCaps) < 0)
+ return -1;
+
+ virCommandAddArgList(cmd, "-device", devstr, NULL);
+ VIR_FREE(devstr);
+ return 0;
+}
+
static int
qemuBuildDomainLoaderCommandLine(virCommandPtr cmd,
virDomainDefPtr def,
@@ -9887,6 +9930,13 @@ qemuBuildCommandLine(virConnectPtr conn,
goto error;
}
+ if (def->ndimms) {
+ for (i = 0; i < def->ndimms; i++) {
+ if (qemuBuildDimmDeviceCommandLine(cmd, def->dimms[i], qemuCaps) < 0)
+ goto error;
+ }
+ }
+
if (def->nvram) {
if (ARCH_IS_PPC64(def->os.arch) &&
STRPREFIX(def->os.machine, "pseries")) {
diff --git a/src/qemu/qemu_command.h b/src/qemu/qemu_command.h
index 512d444..c9d2eb7 100644
--- a/src/qemu/qemu_command.h
+++ b/src/qemu/qemu_command.h
@@ -148,6 +148,10 @@ char *qemuBuildMemballoonDevStr(virDomainDefPtr domainDef,
virDomainMemballoonDefPtr dev,
virQEMUCapsPtr qemuCaps);
+int qemuBuildDimmDeviceStr(char **deviceStr,
+ virDomainDimmDefPtr dimm,
+ virQEMUCapsPtr qemuCaps);
+
char *qemuBuildUSBInputDevStr(virDomainDefPtr domainDef,
virDomainInputDefPtr dev,
virQEMUCapsPtr qemuCaps);
--
1.9.3