[Feature request] compatibility with vm balloon ram

Hi, it looks like ollama is not compatibel with ballon ram inside of an VM, i wanted to run ollama inside of an balloon ram, but i realized that when i have balloon enabled ollama thinks that there is just as example 5GB Ram available out of the 15GB it could get, because they are not provisoned at the start time when ollama checks how mutch ram is available. i think it would be aweseome to have an envionment variable to explicitly specify how mutch ram its allowed to take regardless how many there is at the time of starting.