search for: kludgery

...k (either with one as endpoint of the other or via a non-transparent switch). Which is why I'm not objecting to what you are trying to do ;-) My suggestion was that it might be a cleaner approach to do that by having the individual virtio drivers always use the dma_map_* API, and limiting the kludgery to a combination of virtio_pci "core" and arch code by selecting an appropriate set of dma_map_ops, defaulting with a "transparent" (or direct) one as our current default case (and thus overriding the iommu ones provided by the arch). > We could teach virtio_pci > to us...

Working to get ZFS to run on a minimal Solaris 10 U2 configuration. In this scenario, ZFS is included the miniroot which is booted into RAM. When trying to share one of the filesystems, an assertion is raised - see below. If the version of source on OpenSolaris.org matches Solaris 10 U2, then it looks like it''s associated with a popen of /usr/sbin/share. Can anyone shed any

On Tue, Sep 2, 2014 at 1:53 PM, Benjamin Herrenschmidt <benh at kernel.crashing.org> wrote: > On Mon, 2014-09-01 at 22:55 -0700, Andy Lutomirski wrote: >> >> On x86, at least, I doubt that we'll ever see a physically addressed >> PCI virtio device for which ACPI advertises an IOMMU, since any sane >> hypervisor will just not advertise an IOMMU for the virtio

On Tue, Sep 2, 2014 at 1:53 PM, Benjamin Herrenschmidt <benh at kernel.crashing.org> wrote: > On Mon, 2014-09-01 at 22:55 -0700, Andy Lutomirski wrote: >> >> On x86, at least, I doubt that we'll ever see a physically addressed >> PCI virtio device for which ACPI advertises an IOMMU, since any sane >> hypervisor will just not advertise an IOMMU for the virtio

...t in cases where the alternative (bus addressing) won't work. I think that, so far, this is just ppc64. But see below... > > My suggestion was that it might be a cleaner approach to do that by > having the individual virtio drivers always use the dma_map_* API, and > limiting the kludgery to a combination of virtio_pci "core" and arch > code by selecting an appropriate set of dma_map_ops, defaulting with a > "transparent" (or direct) one as our current default case (and thus > overriding the iommu ones provided by the arch). I think the cleanest way of...

...t in cases where the alternative (bus addressing) won't work. I think that, so far, this is just ppc64. But see below... > > My suggestion was that it might be a cleaner approach to do that by > having the individual virtio drivers always use the dma_map_* API, and > limiting the kludgery to a combination of virtio_pci "core" and arch > code by selecting an appropriate set of dma_map_ops, defaulting with a > "transparent" (or direct) one as our current default case (and thus > overriding the iommu ones provided by the arch). I think the cleanest way of...