On Tue, Dec 06, 2022 at 05:35:57PM +0000, Ben Gardon wrote:
> Move gfn_to_rmap() to rmap.c. While the function is not part of
> manipulating the rmap, it is the main way that the MMU gets pointers to
> the rmaps.
>
> No functional change intended.
>
> Signed-off-by: Ben Gardon <bgardon@xxxxxxxxxx>
> ---
[...]
> diff --git a/arch/x86/kvm/mmu/rmap.c b/arch/x86/kvm/mmu/rmap.c
> index c3bad366b627..272e89147d96 100644
> --- a/arch/x86/kvm/mmu/rmap.c
> +++ b/arch/x86/kvm/mmu/rmap.c
> @@ -200,3 +200,11 @@ u64 *rmap_get_next(struct rmap_iterator *iter)
> return sptep;
> }
>
> +struct kvm_rmap_head *gfn_to_rmap(gfn_t gfn, int level,
> + const struct kvm_memory_slot *slot)
> +{
> + unsigned long idx;
> +
> + idx = gfn_to_index(gfn, slot->base_gfn, level);
> + return &slot->arch.rmap[level - PG_LEVEL_4K][idx];
> +}
Optional: Since this is such a short function maybe just make it a
static inline in rmap.h?
