6c3a44ed3c
The intel-iommu driver assumes that the iommu state is cleaned up at the start of the new kernel. But, when we try to kexec boot something other than the Linux kernel, the cleanup cannot be relied upon. Hence, cleanup before we go down for reboot. Keeping the cleanup at initialization also, in case BIOS leaves the IOMMU enabled. I considered turning off iommu only during kexec reboot, but a clean shutdown seems always a good idea. But if someone wants to make it conditional, such as VMM live update, we can do that. There doesn't seem to be such a condition at this time. Tested that before, the info message 'DMAR: Translation was enabled for <iommu> but we are not in kdump mode' would be reported for each iommu. The message will not appear when the DMA-remapping is not enabled on entry to the kernel. Signed-off-by: Deepa Dinamani <deepa.kernel@gmail.com> Acked-by: Lu Baolu <baolu.lu@linux.intel.com> Signed-off-by: Joerg Roedel <jroedel@suse.de> |
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| .. | ||
| acpi | ||
| asm-generic | ||
| clocksource | ||
| crypto | ||
| drm | ||
| dt-bindings | ||
| keys | ||
| kvm | ||
| linux | ||
| math-emu | ||
| media | ||
| misc | ||
| net | ||
| pcmcia | ||
| ras | ||
| rdma | ||
| scsi | ||
| soc | ||
| sound | ||
| target | ||
| trace | ||
| uapi | ||
| vdso | ||
| video | ||
| xen | ||
| Kbuild | ||