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Date:   Mon, 13 May 2019 08:37:54 -0600
From:   Keith Busch <kbusch@...nel.org>
To:     Mario.Limonciello@...l.com
Cc:     keith.busch@...el.com, hch@....de, sagi@...mberg.me,
        linux-nvme@...ts.infradead.org, rafael@...nel.org,
        linux-kernel@...r.kernel.org, linux-pm@...r.kernel.org,
        kai.heng.feng@...onical.com
Subject: Re: [PATCH] nvme/pci: Use host managed power state for suspend

On Mon, May 13, 2019 at 02:24:41PM +0000, Mario.Limonciello@...l.com wrote:
> This was not a disk with HMB, but with regard to the HMB I believe it needs to be
> removed during s0ix so that there isn't any mistake that SSD thinks it can access HMB
> memory in s0ix.

Is that really the case, though? Where may I find that DMA is not
allowed in this state? I just want an authoritative reference to attach
to the behavior.

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