[libvirt] [PATCH 06/16] hyperv: implement nodeGetFreeMemory

--- src/hyperv/hyperv_driver.c | 32 ++++++++++++++++++++++++++++++++ 1 file changed, 32 insertions(+) diff --git a/src/hyperv/hyperv_driver.c b/src/hyperv/hyperv_driver.c index 7d956d3..861d5ab 100644 --- a/src/hyperv/hyperv_driver.c +++ b/src/hyperv/hyperv_driver.c @@ -1573,6 +1573,37 @@ hypervDomainGetVcpus(virDomainPtr domain, virVcpuInfoPtr info, int maxinfo, return count; } +static unsigned long long +hypervNodeGetFreeMemory(virConnectPtr conn) +{ + unsigned long long res = 0; + hypervPrivate *priv = conn->privateData; + virBuffer query = VIR_BUFFER_INITIALIZER; + Win32_OperatingSystem *operatingSystem = NULL; + + /* Get Win32_OperatingSystem */ + virBufferAddLit(&query, WIN32_OPERATINGSYSTEM_WQL_SELECT); + + if (hypervGetWin32OperatingSystemList(priv, &query, &operatingSystem) < 0) { + goto cleanup; + } + + if (operatingSystem == NULL) { + virReportError(VIR_ERR_INTERNAL_ERROR, + _("Could not get Win32_OperatingSystem")); + goto cleanup; + } + + /* Return free memory in bytes */ + res = operatingSystem->data->FreePhysicalMemory * 1024; + + cleanup: + hypervFreeObject(priv, (hypervObject *) operatingSystem); + virBufferFreeAndReset(&query); + + return res; +} + static virHypervisorDriver hypervHypervisorDriver = { .name = "Hyper-V", .connectOpen = hypervConnectOpen, /* 0.9.5 */ @@ -1580,6 +1611,7 @@ static virHypervisorDriver hypervHypervisorDriver = { .connectGetType = hypervConnectGetType, /* 0.9.5 */ .connectGetHostname = hypervConnectGetHostname, /* 0.9.5 */ .nodeGetInfo = hypervNodeGetInfo, /* 0.9.5 */ + .nodeGetFreeMemory = hypervNodeGetFreeMemory, /* 1.2.10 */ .connectListDomains = hypervConnectListDomains, /* 0.9.5 */ .connectNumOfDomains = hypervConnectNumOfDomains, /* 0.9.5 */ .connectListAllDomains = hypervConnectListAllDomains, /* 0.10.2 */ -- 2.7.4