Re: [PATCH v4 02/10] ARM: KVM: Hypervisor identity mapping

[Avi Kivity <avi@redhat.com>]

On 08/06/2011 01:39 PM, Christoffer Dall wrote:
> Adds support in the identity mapping feature that allows KVM to setup
> identity mapping for the Hyp mode with the AP[1] bit set as required by
> the specification and also supports freeing created sub pmd's after
> finished use.
>
> These two functions:
>   - hyp_identity_mapping_add(pgd, addr, end);
>   - hyp_identity_mapping_del(pgd, addr, end);
> are essentially calls the same function as the non-hyp versions but
> with a different argument value. KVM calls these functions to setup
> and teardown the identity mapping used to initialize the hypervisor.
>
> Note, the hyp-version of the _del function actually frees the pmd's
> pointed to by the pgd as opposed to the non-hyp version which just
> clears them.
>
>

These are for mapping host memory, not guest memory, right?

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