>>> On 26.01.17 at 09:57, <dw...@infradead.org> wrote:
> Since the fix for XSA-154 in commit c61a6f74f80e ("x86: enforce
> consistent cachability of MMIO mappings"), HVM guests have no longer
> been able to use PAT to obtain write-combining on MMIO because the
> 'ignore PAT' bit is set in EPT.This is too broad a statement: MMIO pages for which mfn_valid() is true would still allow WC use. The only other issue with the patch that I can see is that you need to eliminate all the hard tabs you're introducing. Jan _______________________________________________ Xen-devel mailing list Xen-devel@lists.xen.org https://lists.xen.org/xen-devel
