>>> On 26.01.17 at 11:55, <dw...@infradead.org> wrote: > On Thu, 2017-01-26 at 03:45 -0700, Jan Beulich wrote: >> >> This is too broad a statement: MMIO pages for which mfn_valid() >> is true would still allow WC use. > > ... where mfn_valid() would be true for MMIO regions in the low memory > hole, but not for regions above all physical memory?
Even for pages immediately above physical memory mfn_valid() may be true, iirc. Jan _______________________________________________ Xen-devel mailing list Xen-devel@lists.xen.org https://lists.xen.org/xen-devel
