On 03/19/2018 03:13 PM, 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.coop...@citrix.com>
Acked-by: Daniel De Graaf <dgde...@tycho.nsa.gov>
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