Razvan Cojocaru writes ("[PATCH V3] tools/libxc, xen/x86: Added
xc_set_mem_access_multi()"):
> Currently it is only possible to set mem_access restrictions only for
> a contiguous range of GFNs (or, as a particular case, for a single GFN).
> This patch introduces a new libxc function taking an array of GFNs.
> The alternative would be to set each page in turn, using a userspace-HV
> roundtrip for each call, and triggering a TLB flush per page set.
>
> Signed-off-by: Razvan Cojocaru <rcojoc...@bitdefender.com>
> Acked-by: Wei Liu <wei.l...@citrix.com>
I have no objection with my tools maintainer hat on. But I have a
question for you and/or the hypervisor maintainers:
Could this aim be achieved with a multicall ? (Can multicalls defer
the TLB flush?)
Ian.
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