Re: [PATCH v6][RESEND] x86/hyperv: Suspend/resume the hypercall page for hibernation

From: Sasha Levin
Date: Wed Jan 29 2020 - 19:05:57 EST


On Sat, Jan 25, 2020 at 01:44:31AM +0000, Dexuan Cui wrote:
From: Dexuan Cui <decui@xxxxxxxxxxxxx>
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@xxxxxxxxxxxxx>
Reviewed-by: Michael Kelley <mikelley@xxxxxxxxxxxxx>
---

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?

Ping?

This patch has been floating around in it's current form for the past 2
months. I'll happily take Hyper-V patches under arch/x86/hyperv/ via the
Hyper-V tree rather than tip if the x86 folks don't want to deal with
them.

--
Thanks,
Sasha