[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] FC-HBA assigned to guest domain does not work.
The hvmloader side is perhaps plausible, since it only changes its behaviour if qemu exposes an already-configured BAR. Fair enough. I don't think that blanket always-use-physical-BAR-address is a great idea in qemu -- perhaps if it could be configurable that would be okay. -- Keir On 2/9/08 06:32, "Yuji Shimada" <shimada-yxb@xxxxxxxxxxxxxxx> wrote: > FC-HBA's MMIO resource are mapped to guest physical address and > machine address. I found both addresses need to be the same. > > I created the series of patches which map MMIO resource to the same > address in guest physical address space and in machine address space. > After applying this patch, my FC-HBA worked and IOMMU page fault did > not occur. > > The patches are for only discussion. > I'd like comments of developers. > > >> I think that MMIO resource mapped via p2m table should be mapped via >> IOMMU's page table too. In other word, XEN_DOMCTL_memory_mapping >> hypercall should update not only p2m table, but also IOMMU's page table. > > Currently I don't think this is required. > > Thanks, > > Signed-off-by: Yuji Shimada <shimada-yxb@xxxxxxxxxxxxxxx> > > -- > Yuji Shimada > _______________________________________________ > Xen-devel mailing list > Xen-devel@xxxxxxxxxxxxxxxxxxx > http://lists.xensource.com/xen-devel _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
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