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Message-ID: <20210324113603.rtvczlrvdp6vhl7e@liuwe-devbox-debian-v2>
Date: Wed, 24 Mar 2021 11:36:03 +0000
From: Wei Liu <wei.liu@...nel.org>
To: Sunil Muthuswamy <sunilmut@...rosoft.com>
Cc: "linux-hyperv@...r.kernel.org" <linux-hyperv@...r.kernel.org>,
Haiyang Zhang <haiyangz@...rosoft.com>,
Stephen Hemminger <sthemmin@...rosoft.com>,
Wei Liu <liuwe@...rosoft.com>,
Tianyu Lan <Tianyu.Lan@...rosoft.com>,
Wei Liu <wei.liu@...nel.org>, vkuznets <vkuznets@...hat.com>,
Michael Kelley <mikelley@...rosoft.com>,
KY Srinivasan <kys@...rosoft.com>,
"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
Matheus Castello <matheus@...tello.eng.br>
Subject: Re: [PATCH v5] x86/Hyper-V: Support for free page reporting
On Tue, Mar 23, 2021 at 06:47:16PM +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@...rosoft.com>
> Tested-by: Matheus Castello <matheus@...tello.eng.br>
Applied to hyperv-next. Thanks.
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