Signed-off-by: Michal Privoznik <mpriv...@redhat.com>
---
src/qemu/qemu_alias.c | 9 +++-
src/qemu/qemu_command.c | 24 +++++++++--
...mory-hotplug-virtio-mem.x86_64-latest.args | 41 +++++++++++++++++++
tests/qemuxml2argvtest.c | 1 +
4 files changed, 70 insertions(+), 5 deletions(-)
create mode 100644
tests/qemuxml2argvdata/memory-hotplug-virtio-mem.x86_64-latest.args
diff --git a/src/qemu/qemu_alias.c b/src/qemu/qemu_alias.c
index 79e8953b2f..81a1e7eeed 100644
--- a/src/qemu/qemu_alias.c
+++ b/src/qemu/qemu_alias.c
@@ -475,8 +475,11 @@ qemuDeviceMemoryGetAliasID(virDomainDef *def,
size_t i;
int maxidx = 0;
- /* virtio-pmem goes onto PCI bus and thus DIMM address is not valid */
- if (!oldAlias && mem->model != VIR_DOMAIN_MEMORY_MODEL_VIRTIO_PMEM)
+ /* virtio-pmem and virtio-mem go onto PCI bus and thus DIMM address is not
+ * valid */
+ if (!oldAlias &&
+ mem->model != VIR_DOMAIN_MEMORY_MODEL_VIRTIO_PMEM &&
+ mem->model != VIR_DOMAIN_MEMORY_MODEL_VIRTIO_MEM)
return mem->info.addr.dimm.slot;
for (i = 0; i < def->nmems; i++) {
@@ -523,6 +526,8 @@ qemuAssignDeviceMemoryAlias(virDomainDef *def,
prefix = "virtiopmem";
break;
case VIR_DOMAIN_MEMORY_MODEL_VIRTIO_MEM:
+ prefix = "virtiomem";
+ break;
case VIR_DOMAIN_MEMORY_MODEL_NONE:
case VIR_DOMAIN_MEMORY_MODEL_LAST:
default:
diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c
index 594e5643b1..91f3094ac8 100644
--- a/src/qemu/qemu_command.c
+++ b/src/qemu/qemu_command.c
@@ -3136,9 +3136,19 @@ qemuBuildMemoryBackendProps(virJSONValue **backendProps,
virJSONValueObjectAdd(props, "b:x-use-canonical-path-for-ramblock-id",
false, NULL) < 0)
return -1;
- if (!priv->memPrealloc &&
- virJSONValueObjectAdd(props, "B:prealloc", prealloc, NULL) < 0)
- return -1;
+ if (mem->model == VIR_DOMAIN_MEMORY_MODEL_VIRTIO_MEM) {
+ /* Explicitly disable prealloc for virtio-mem */
+ if (priv->memPrealloc &&
+ virJSONValueObjectAppendBoolean(props, "prealloc", 0) < 0)
+ return -1;
+ if (virQEMUCapsGet(priv->qemuCaps, QEMU_CAPS_MEMORY_BACKEND_RESERVE) &&
+ virJSONValueObjectAppendBoolean(props, "reserve", 0) < 0)
+ return -1;
+ } else {
+ if (!priv->memPrealloc &&
+ virJSONValueObjectAdd(props, "B:prealloc", prealloc, NULL) < 0)
+ return -1;
+ }
if (virJSONValueObjectAdd(props, "U:size", mem->size * 1024, NULL) < 0)
return -1;
@@ -3318,6 +3328,9 @@ qemuBuildMemoryDeviceStr(const virDomainDef *def,
break;
case VIR_DOMAIN_MEMORY_MODEL_VIRTIO_MEM:
+ device = "virtio-mem-pci";
+ break;
+
case VIR_DOMAIN_MEMORY_MODEL_NONE:
case VIR_DOMAIN_MEMORY_MODEL_LAST:
default:
@@ -3334,6 +3347,11 @@ qemuBuildMemoryDeviceStr(const virDomainDef *def,
if (mem->labelsize)
virBufferAsprintf(&buf, "label-size=%llu,", mem->labelsize * 1024);
+ if (mem->blocksize) {
+ virBufferAsprintf(&buf, "block-size=%llu,", mem->blocksize * 1024);
+ virBufferAsprintf(&buf, "requested-size=%llu,", mem->requestedsize *
1024);
+ }
+
if (mem->uuid) {
char uuidstr[VIR_UUID_STRING_BUFLEN];
diff --git a/tests/qemuxml2argvdata/memory-hotplug-virtio-mem.x86_64-latest.args b/tests/qemuxml2argvdata/memory-hotplug-virtio-mem.x86_64-latest.args
new file mode 100644
index 0000000000..22ee1bc459
--- /dev/null
+++ b/tests/qemuxml2argvdata/memory-hotplug-virtio-mem.x86_64-latest.args
@@ -0,0 +1,41 @@
+LC_ALL=C \
+PATH=/bin \
+HOME=/tmp/lib/domain--1-QEMUGuest1 \
+USER=test \
+LOGNAME=test \
+XDG_DATA_HOME=/tmp/lib/domain--1-QEMUGuest1/.local/share \
+XDG_CACHE_HOME=/tmp/lib/domain--1-QEMUGuest1/.cache \
+XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
+/usr/bin/qemu-system-i386 \
+-name guest=QEMUGuest1,debug-threads=on \
+-S \
+-object
'{"qom-type":"secret","id":"masterKey0","format":"raw","file":"/tmp/lib/domain--1-QEMUGuest1/master-key.aes"}'
\
+-machine pc,accel=kvm,usb=off,dump-guest-core=off \
+-cpu qemu64 \
+-m size=2095104k,slots=16,maxmem=1099511627776k \
+-overcommit mem-lock=off \
+-smp 2,sockets=2,dies=1,cores=1,threads=1 \
+-object '{"qom-type":"memory-backend-ram","id":"ram-node0","size":2145386496}'
\
+-numa node,nodeid=0,cpus=0-1,memdev=ram-node0 \
+-object
'{"qom-type":"memory-backend-ram","id":"memvirtiomem0","reserve":false,"size":1073741824}'
\
+-device
virtio-mem-pci,node=0,block-size=2097152,requested-size=536870912,memdev=memvirtiomem0,id=virtiomem0,bus=pci.0,addr=0x2
\
+-object
'{"qom-type":"memory-backend-file","id":"memvirtiomem1","mem-path":"/dev/hugepages2M/libvirt/qemu/-1-QEMUGuest1","reserve":false,"size":2147483648,"host-nodes":[1,2,3],"policy":"bind"}'
\
+-device
virtio-mem-pci,node=0,block-size=2097152,requested-size=1073741824,memdev=memvirtiomem1,id=virtiomem1,bus=pci.0,addr=0x3
\
+-uuid c7a5fdbd-edaf-9455-926a-d65c16db1809 \
+-display none \
+-no-user-config \
+-nodefaults \
+-chardev socket,id=charmonitor,fd=1729,server=on,wait=off \
+-mon chardev=charmonitor,id=monitor,mode=control \
+-rtc base=utc \
+-no-shutdown \
+-no-acpi \
+-boot strict=on \
+-device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-blockdev
'{"driver":"host_device","filename":"/dev/HostVG/QEMUGuest1","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}'
\
+-blockdev
'{"node-name":"libvirt-1-format","read-only":false,"driver":"raw","file":"libvirt-1-storage"}'
\
+-device ide-hd,bus=ide.0,unit=0,drive=libvirt-1-format,id=ide0-0-0,bootindex=1
\
+-audiodev id=audio1,driver=none \
+-device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x4 \
+-sandbox
on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
+-msg timestamp=on
diff --git a/tests/qemuxml2argvtest.c b/tests/qemuxml2argvtest.c
index 74af93b08f..23f4a8471f 100644
--- a/tests/qemuxml2argvtest.c
+++ b/tests/qemuxml2argvtest.c
@@ -3143,6 +3143,7 @@ mymain(void)
ARG_END);
DO_TEST_CAPS_VER("memory-hotplug-virtio-pmem", "5.2.0");
DO_TEST_CAPS_LATEST("memory-hotplug-virtio-pmem");
+ DO_TEST_CAPS_LATEST("memory-hotplug-virtio-mem");
DO_TEST("machine-aeskeywrap-on-caps",
QEMU_CAPS_AES_KEY_WRAP,
