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Date: Mon, 11 Nov 2019 00:39:15 +0000 From: "Zeng, Jason" <jason.zeng@...el.com> To: Deepa Dinamani <deepa.kernel@...il.com> CC: David Woodhouse <dwmw2@...radead.org>, "joro@...tes.org" <joro@...tes.org>, "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>, "iommu@...ts.linux-foundation.org" <iommu@...ts.linux-foundation.org>, "Tian, Kevin" <kevin.tian@...el.com>, "Zeng, Jason" <jason.zeng@...el.com> Subject: RE: [PATCH] intel-iommu: Turn off translations at shutdown > -----Original Message----- > > > > 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. > No, it is not in upstream yet. It is an on-going effort, which tries to kexec reboot the host while keeping IOMMU still working. Thanks, Jason > Thanks, > Deepa
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