diff options
| -rw-r--r-- | hw/core/machine-hmp-cmds.c | 15 | ||||
| -rw-r--r-- | hw/hyperv/hv-balloon.c | 27 | ||||
| -rw-r--r-- | qapi/machine.json | 39 |
3 files changed, 78 insertions, 3 deletions
diff --git a/hw/core/machine-hmp-cmds.c b/hw/core/machine-hmp-cmds.c index 9a4b59c6f2..a6ff6a4875 100644 --- a/hw/core/machine-hmp-cmds.c +++ b/hw/core/machine-hmp-cmds.c @@ -253,6 +253,7 @@ void hmp_info_memory_devices(Monitor *mon, const QDict *qdict) MemoryDeviceInfo *value; PCDIMMDeviceInfo *di; SgxEPCDeviceInfo *se; + HvBalloonDeviceInfo *hi; for (info = info_list; info; info = info->next) { value = info->value; @@ -310,6 +311,20 @@ void hmp_info_memory_devices(Monitor *mon, const QDict *qdict) monitor_printf(mon, " node: %" PRId64 "\n", se->node); monitor_printf(mon, " memdev: %s\n", se->memdev); break; + case MEMORY_DEVICE_INFO_KIND_HV_BALLOON: + hi = value->u.hv_balloon.data; + monitor_printf(mon, "Memory device [%s]: \"%s\"\n", + MemoryDeviceInfoKind_str(value->type), + hi->id ? hi->id : ""); + if (hi->has_memaddr) { + monitor_printf(mon, " memaddr: 0x%" PRIx64 "\n", + hi->memaddr); + } + monitor_printf(mon, " max-size: %" PRIu64 "\n", hi->max_size); + if (hi->memdev) { + monitor_printf(mon, " memdev: %s\n", hi->memdev); + } + break; default: g_assert_not_reached(); } diff --git a/hw/hyperv/hv-balloon.c b/hw/hyperv/hv-balloon.c index 5999f1127d..44a8d15cc8 100644 --- a/hw/hyperv/hv-balloon.c +++ b/hw/hyperv/hv-balloon.c @@ -1625,6 +1625,31 @@ static MemoryRegion *hv_balloon_md_get_memory_region(MemoryDeviceState *md, return balloon->mr; } +static void hv_balloon_md_fill_device_info(const MemoryDeviceState *md, + MemoryDeviceInfo *info) +{ + HvBalloonDeviceInfo *hi = g_new0(HvBalloonDeviceInfo, 1); + const HvBalloon *balloon = HV_BALLOON(md); + DeviceState *dev = DEVICE(md); + + if (dev->id) { + hi->id = g_strdup(dev->id); + } + + if (balloon->hostmem) { + hi->memdev = object_get_canonical_path(OBJECT(balloon->hostmem)); + hi->memaddr = balloon->addr; + hi->has_memaddr = true; + hi->max_size = memory_region_size(balloon->mr); + /* TODO: expose current provided size or something else? */ + } else { + hi->max_size = 0; + } + + info->u.hv_balloon.data = hi; + info->type = MEMORY_DEVICE_INFO_KIND_HV_BALLOON; +} + static void hv_balloon_decide_memslots(MemoryDeviceState *md, unsigned int limit) { @@ -1712,5 +1737,5 @@ static void hv_balloon_class_init(ObjectClass *klass, void *data) mdc->get_memory_region = hv_balloon_md_get_memory_region; mdc->decide_memslots = hv_balloon_decide_memslots; mdc->get_memslots = hv_balloon_get_memslots; - /* implement fill_device_info */ + mdc->fill_device_info = hv_balloon_md_fill_device_info; } diff --git a/qapi/machine.json b/qapi/machine.json index 6c9d2f6dcf..2985d043c0 100644 --- a/qapi/machine.json +++ b/qapi/machine.json @@ -1290,6 +1290,29 @@ } ## +# @HvBalloonDeviceInfo: +# +# hv-balloon provided memory state information +# +# @id: device's ID +# +# @memaddr: physical address in memory, where device is mapped +# +# @max-size: the maximum size of memory that the device can provide +# +# @memdev: memory backend linked with device +# +# Since: 8.2 +## +{ 'struct': 'HvBalloonDeviceInfo', + 'data': { '*id': 'str', + '*memaddr': 'size', + 'max-size': 'size', + '*memdev': 'str' + } +} + +## # @MemoryDeviceInfoKind: # # @nvdimm: since 2.12 @@ -1300,10 +1323,13 @@ # # @sgx-epc: since 6.2. # +# @hv-balloon: since 8.2. +# # Since: 2.1 ## { 'enum': 'MemoryDeviceInfoKind', - 'data': [ 'dimm', 'nvdimm', 'virtio-pmem', 'virtio-mem', 'sgx-epc' ] } + 'data': [ 'dimm', 'nvdimm', 'virtio-pmem', 'virtio-mem', 'sgx-epc', + 'hv-balloon' ] } ## # @PCDIMMDeviceInfoWrapper: @@ -1338,6 +1364,14 @@ 'data': { 'data': 'SgxEPCDeviceInfo' } } ## +# @HvBalloonDeviceInfoWrapper: +# +# Since: 8.2 +## +{ 'struct': 'HvBalloonDeviceInfoWrapper', + 'data': { 'data': 'HvBalloonDeviceInfo' } } + +## # @MemoryDeviceInfo: # # Union containing information about a memory device @@ -1351,7 +1385,8 @@ 'nvdimm': 'PCDIMMDeviceInfoWrapper', 'virtio-pmem': 'VirtioPMEMDeviceInfoWrapper', 'virtio-mem': 'VirtioMEMDeviceInfoWrapper', - 'sgx-epc': 'SgxEPCDeviceInfoWrapper' + 'sgx-epc': 'SgxEPCDeviceInfoWrapper', + 'hv-balloon': 'HvBalloonDeviceInfoWrapper' } } |