2007-07-17 19:37:04 -06:00
|
|
|
/******************************************************************************
|
|
|
|
* features.h
|
|
|
|
*
|
|
|
|
* Feature flags, reported by XENVER_get_features.
|
|
|
|
*
|
|
|
|
* 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
|
|
|
|
|
2008-06-16 05:30:02 -06:00
|
|
|
/* x86: Does this Xen host support the MMU_PT_UPDATE_PRESERVE_AD hypercall? */
|
|
|
|
#define XENFEAT_mmu_pt_update_preserve_ad 5
|
|
|
|
|
2010-05-14 05:40:51 -06:00
|
|
|
/* x86: Does this Xen host support the HVM callback vector type? */
|
|
|
|
#define XENFEAT_hvm_callback_vector 8
|
|
|
|
|
2010-05-14 05:48:19 -06:00
|
|
|
/* x86: pvclock algorithm is safe to use on HVM */
|
|
|
|
#define XENFEAT_hvm_safe_pvclock 9
|
|
|
|
|
2010-06-24 10:50:18 -06:00
|
|
|
/* x86: pirq can be used by HVM guests */
|
|
|
|
#define XENFEAT_hvm_pirqs 10
|
|
|
|
|
2012-08-08 11:20:18 -06:00
|
|
|
/* operation as Dom0 is supported */
|
|
|
|
#define XENFEAT_dom0 11
|
|
|
|
|
2007-07-17 19:37:04 -06:00
|
|
|
#define XENFEAT_NR_SUBMAPS 1
|
|
|
|
|
|
|
|
#endif /* __XEN_PUBLIC_FEATURES_H__ */
|