Re: [PATCH for-4.14] mm: fix public declaration of struct xen_mem_acquire_resource

[Jan Beulich <jbeulich@xxxxxxxx>]

On 23.06.2020 15:52, Roger Pau Monne wrote:
> XENMEM_acquire_resource and it's related structure is currently inside
> a __XEN__ or __XEN_TOOLS__ guarded section to limit it's scope to the
> hypervisor or the toolstack only. This is wrong as the hypercall is
> already being used by the Linux kernel at least, and as such needs to
> be public.

Actually - how does this work for the Linux kernel, seeing

    rc = rcu_lock_remote_domain_by_id(xmar.domid, &d);
    if ( rc )
        return rc;

    rc = xsm_domain_resource_map(XSM_DM_PRIV, d);
    if ( rc )
        goto out;

in the function?

Jan