From: Dexuan Cui <decui@microsoft.com>
Sent: Monday, January 6, 2020 2:43 PM

This is needed for hibernation, e.g. when we resume the old kernel, we need
to disable the "current" kernel's hypercall page and then resume the old
kernel's.

Signed-off-by: Dexuan Cui <decui@microsoft.com>
Reviewed-by: Michael Kelley <redacted>
---

This is a RESEND of https://lkml.org/lkml/2019/11/20/68

Please review.

If it looks good, can you please pick it up through the tip.git tree?

 arch/x86/hyperv/hv_init.c | 48
+++++++++++++++++++++++++++++++++++++++
 1 file changed, 48 insertions(+)

Hi, Vitaly and x86 maintainers,
Can you please take a look at this patch?

Thanks,
-- Dexuan