2008-08-12 07:36:56 +00:00
|
|
|
/******************************************************************************
|
|
|
|
|
* 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
|
|
|
|
|
|
2008-09-25 07:01:31 +00:00
|
|
|
/* x86: Does this Xen host support the MMU_PT_UPDATE_PRESERVE_AD hypercall? */
|
|
|
|
|
#define XENFEAT_mmu_pt_update_preserve_ad 5
|
|
|
|
|
|
2008-08-12 07:36:56 +00:00
|
|
|
#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:
|
|
|
|
|
*/
|
