>>> On 04.05.15 at 04:16, <tiejun.c...@intel.com> wrote: > S5 menas we also shut down IOMMU engine as well, so we should > disable IOMMU engine completely before enter S5, otherwise we > still probably receive some interrupts in this period. But > currently VT-D path depends on force_iommu and iommu_intremap > to determine if we should disable translation and queued > invalidation. So this unexpected behaviour can be fixed by > clearing force_iommu and iommu_intremap.
Maybe it can, but is this the right way to do it? Fiddling with IOMMU internal variables in xen/arch/x86/acpi/power.c seems bogus (not to say hacky) at least. And why would this be S5-specific? > Additionally, some cleanups to code comments. Which has nothing to do in tis patch. Jan _______________________________________________ Xen-devel mailing list Xen-devel@lists.xen.org http://lists.xen.org/xen-devel
