cputlb: Add functions for flushing TLB for a single MMU index
Guest CPU TLB maintenance operations may be sufficiently specialized to only need to flush TLB entries corresponding to a particular MMU index. Implement cputlb functions for this, to avoid the inefficiency of flushing TLB entries which we don't need to. Signed-off-by: NPeter Maydell <peter.maydell@linaro.org> Reviewed-by: NEdgar E. Iglesias <edgar.iglesias@xilinx.com> Message-id: 1439548879-1972-2-git-send-email-peter.maydell@linaro.org
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