[PATCH] PPC: KVM: Introduce hypervisor call H_GET_TCE

Alexander Graf agraf at suse.de
Sat Feb 22 02:57:31 EST 2014


On 21.02.2014, at 16:31, Laurent Dufour <ldufour at linux.vnet.ibm.com> wrote:

> This fix introduces the H_GET_TCE hypervisor call which is basically the
> reverse of H_PUT_TCE, as defined in the Power Architecture Platform
> Requirements (PAPR).
> 
> The hcall H_GET_TCE is required by the kdump kernel which is calling it to
> retrieve the TCE set up by the panicing kernel.
> 
> Signed-off-by: Laurent Dufour <ldufour at linux.vnet.ibm.com>

Thanks, applied to kvm-ppc-queue. Btw, why exactly are we using struct page pointers and alloc_page rather than __get_free_page() and simple page start pointers?


Alex



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