Re: [Xen-devel] [PATCH 11/20] xen/domctl: Merge set_gnttab_limits into createdomain

[Wei Liu <wei.liu2@xxxxxxxxxx>]

On Mon, Mar 19, 2018 at 07:13:50PM +0000, Andrew Cooper wrote:
> XEN_DOMCTL_set_gnttab_limits is a fairly new hypercall, and is strictly
> mandatory.  Adding support for it introduced a state where a domain has a
> mostly un-constructed grant table, and there were cases where mis-ordering of
> toolstack hypercalls could cause a NULL pointer deference in the hypervisor.
> In fixing this, the grant table initialisation code became very tangled.
> 
> As the settings are mandatory, delete XEN_DOMCTL_set_gnttab_limits (including
> XSM hooks and libxc wrappers) and retain the functionality in
> XEN_DOMCTL_createdomain.
> 
> Signed-off-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>

Acked-by: Wei Liu <wei.liu2@xxxxxxxxxx>

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