From: Boqun Feng <redacted> Sent: Thursday, September 10, 2020 7:35 AM

When a guest communicate with the hypervisor, it must use HV_HYP_PAGE to
calculate PFN, so introduce a few hvpfn helper functions as the
counterpart of the page helper functions. This is the preparation for
supporting guest whose PAGE_SIZE is not 4k.

Signed-off-by: Boqun Feng <redacted>
---
 include/linux/hyperv.h | 5 +++++
 1 file changed, 5 insertions(+)

Reviewed-by: Michael Kelley <redacted>