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From:   Deepa Dinamani <deepa.kernel@gmail.com>
Date:   Fri, 8 Nov 2019 14:48:51 -0800
Message-ID: <CABeXuvoiX639HchLbgTHLiXPh=Yr2dJHUp2Yqc6pNJ3As1OJ8A@mail.gmail.com>
Subject: Re: [PATCH] intel-iommu: Turn off translations at shutdown
To:     "Zeng, Jason" <jason.zeng@intel.com>
Cc:     David Woodhouse <dwmw2@infradead.org>,
        "joro@8bytes.org" <joro@8bytes.org>,
        "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
        "iommu@lists.linux-foundation.org" <iommu@lists.linux-foundation.org>,
        "Tian, Kevin" <kevin.tian@intel.com>
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> > > For VMM live update case, we should be able to detect and bypass
> > > the shutdown that Deepa introduced here, so keep IOMMU still operating?
> >
> > Is that a 'yes' to Deepa's "if someone wants to make it conditional, we
> > can do that" ?
>
> Yes, I think so. Thanks!

Are these changes already part of the kernel like avoiding shutdown of
the passthrough devices? device_shutdown() doesn't seem to be doing
anything selectively as of now.

Thanks,
Deepa