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Re: [Qemu-devel] [PATCH 15/27] iommu: Add IOMMU index argument to notifi

From: Richard Henderson
Subject: Re: [Qemu-devel] [PATCH 15/27] iommu: Add IOMMU index argument to notifier APIs
Date: Tue, 22 May 2018 10:45:32 -0700
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.7.0

On 05/21/2018 07:03 AM, Peter Maydell wrote:
> Add support for multiple IOMMU indexes to the IOMMU notifier APIs.
> When initializing a notifier with iommu_notifier_init(), the caller
> must pass the IOMMU index that it is interested in. When a change
> happens, the IOMMU implementation must pass
> memory_region_notify_iommu() the IOMMU index that has changed and
> that notifiers must be called for.
> IOMMUs which support only a single index don't need to change.
> Callers which only really support working with IOMMUs with a single
> index can use the result of passing MEMTXATTRS_UNSPECIFIED to
> memory_region_iommu_attrs_to_index().
> Signed-off-by: Peter Maydell <address@hidden>
> ---

Reviewed-by: Richard Henderson <address@hidden>


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