On Wed, Jan 06, 2021 at 11:20:33PM +0000, Sunil Muthuswamy wrote: > Linux has support for free page reporting now (36e66c554b5c) for > virtualized environment. On Hyper-V when virtually backed VMs are > configured, Hyper-V will advertise cold memory discard capability, > when supported. This patch adds the support to hook into the free > page reporting infrastructure and leverage the Hyper-V cold memory > discard hint hypercall to report/free these pages back to the host. > > Signed-off-by: Sunil Muthuswamy <sunilmut@xxxxxxxxxxxxx> > Tested-by: Matheus Castello <matheus@xxxxxxxxxxxxxxx> Reviewed-by: Wei Liu <wei.liu@xxxxxxxxxx>
