/****************************************************************************** * features.h *  * Feature flags, reported by XENVER_get_features. *  * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to * deal in the Software without restriction, including without limitation the * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or * sell copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER * DEALINGS IN THE SOFTWARE. * * Copyright (c) 2006, Keir Fraser <keir@xensource.com> */#ifndef __XEN_PUBLIC_FEATURES_H__#define __XEN_PUBLIC_FEATURES_H__/* * If set, the guest does not need to write-protect its pagetables, and can * update them via direct writes. */#define XENFEAT_writable_page_tables       0/* * If set, the guest does not need to write-protect its segment descriptor * tables, and can update them via direct writes. */#define XENFEAT_writable_descriptor_tables 1/* * If set, translation between the guest's 'pseudo-physical' address space * and the host's machine address space are handled by the hypervisor. In this * mode the guest does not need to perform phys-to/from-machine translations * when performing page table operations. */#define XENFEAT_auto_translated_physmap    2/* If set, the guest is running in supervisor mode (e.g., x86 ring 0). */#define XENFEAT_supervisor_mode_kernel     3/* * If set, the guest does not need to allocate x86 PAE page directories * below 4GB. This flag is usually implied by auto_translated_physmap. */#define XENFEAT_pae_pgdir_above_4gb        4/* x86: Does this Xen host support the MMU_PT_UPDATE_PRESERVE_AD hypercall? */#define XENFEAT_mmu_pt_update_preserve_ad  5#define XENFEAT_NR_SUBMAPS 1#endif /* __XEN_PUBLIC_FEATURES_H__ *//* * Local variables: * mode: C * c-set-style: "BSD" * c-basic-offset: 4 * tab-width: 4 * indent-tabs-mode: nil * End: */