<#
.SYNOPSIS
Function gets VMs that have memory limits configured.
.DESCRIPTION
Takes a list of vms input from Get-VM and checks each one for a configured memory limit
.PARAMETER vms
The vm(s) to check for memory limits
.EXAMPLE
Get-VM | Get-VMWithMemLimit
.EXAMPLE
$vms = Get-VM 
Get-VMWithMemLimit -vms $vms
#>
Function Get-VMWithMemLimit {
	[CmdletBinding()] Param(
		[Parameter(Mandatory=$True,ValueFromPipeline=$True,ValueFromPipelinebyPropertyName=$True)]$vms
	)

	Begin {
		$list = @()
	}

	Process {
		$vms | % {
			$res = $_ | Get-VMResourceConfiguration | Select MemLimitMB 
			if ($res.MemLimitMB -ne "-1") { 
				$item = "" | Select Name,MemoryMB,MemLimitMB
				$item.Name = $_.Name
				$item.MemoryMB = $_.MemoryMB
				$item.MemLimitMB = $res.MemLimitMB
				$list += $item
			}
		}
	}
	
	End {
		return $list
	}
	

}

<#
.SYNOPSIS
Removes the memory limit configured on a VM.
.DESCRIPTION
Takes a list of vms as input from Get-VM and removes the memory limit from each one
.PARAMETER vms
List of VMs to remove limit from
.EXAMPLE
Get-VM | Remove-VMMemLimit
.EXAMPLE
Get-VMWithMemLimit | Remove-VMMemLimit
#>
Function Remove-VMMemLimit {
	[CmdletBinding()] Param(
		[Parameter(Mandatory=$True,ValueFromPipeline=$True,ValueFromPipelinebyPropertyName=$True)]$vm
	)

	Begin {
	}

	Process {
		$vm | % {
			$spec = new-object VMware.Vim.VirtualMachineConfigSpec
			$spec.MemoryAllocation = New-Object VMware.Vim.ResourceAllocationInfo
			$spec.MemoryAllocation.Limit = -1
			$vm = get-view -ViewType VirtualMachine -Filter @{"Name"=$_.Name}
			$vm.ReconfigVM_Task($spec)
		}
	}
}