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Date: Tue, 10 Jul 2012 17:26:21 -0500
From: Scott Wood <scottwood@freescale.com>
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Subject: Re: [Qemu-devel] [PATCH 2/2] vfio-powerpc: added VFIO support
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To: Alexey Kardashevskiy <aik@ozlabs.ru>
Cc: Alex Williamson <alex.williamson@redhat.com>, David Gibson <david@gibson.dropbear.id.au>, qemu-ppc@nongnu.org, Alexander Graf <agraf@suse.de>, qemu-devel@nongnu.org

On 07/10/2012 12:51 AM, Alexey Kardashevskiy wrote:
> The patch enables VFIO on POWER.
> 
> It literally does the following:
> 
> 1. POWERPC IOMMU support (the kernel counterpart is required)
[snip]
> +/* -------- API for POWERPC IOMMU -------- */
> +
> +#define POWERPC_IOMMU           2
> +
> +struct tce_iommu_info {
> +    __u32 argsz;
> +    __u32 dma32_window_start;
> +    __u32 dma32_window_size;
> +};
> +
> +#define POWERPC_IOMMU_GET_INFO _IO(VFIO_TYPE, VFIO_BASE + 12)

Is there a more specific name that could be used for this?  Not all
PowerPC chips have the same kind of IOMMU.

-Scott