89 строки
2.8 KiB
C
89 строки
2.8 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
/******************************************************************************
|
|
* 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
|
|
|
|
/* x86: Does this Xen host support the MMU_PT_UPDATE_PRESERVE_AD hypercall? */
|
|
#define XENFEAT_mmu_pt_update_preserve_ad 5
|
|
|
|
/* x86: Does this Xen host support the MMU_{CLEAR,COPY}_PAGE hypercall? */
|
|
#define XENFEAT_highmem_assist 6
|
|
|
|
/*
|
|
* If set, GNTTABOP_map_grant_ref honors flags to be placed into guest kernel
|
|
* available pte bits.
|
|
*/
|
|
#define XENFEAT_gnttab_map_avail_bits 7
|
|
|
|
/* x86: Does this Xen host support the HVM callback vector type? */
|
|
#define XENFEAT_hvm_callback_vector 8
|
|
|
|
/* x86: pvclock algorithm is safe to use on HVM */
|
|
#define XENFEAT_hvm_safe_pvclock 9
|
|
|
|
/* x86: pirq can be used by HVM guests */
|
|
#define XENFEAT_hvm_pirqs 10
|
|
|
|
/* operation as Dom0 is supported */
|
|
#define XENFEAT_dom0 11
|
|
|
|
/* Xen also maps grant references at pfn = mfn.
|
|
* This feature flag is deprecated and should not be used.
|
|
#define XENFEAT_grant_map_identity 12
|
|
*/
|
|
|
|
/* Guest can use XENMEMF_vnode to specify virtual node for memory op. */
|
|
#define XENFEAT_memory_op_vnode_supported 13
|
|
|
|
/* arm: Hypervisor supports ARM SMC calling convention. */
|
|
#define XENFEAT_ARM_SMCCC_supported 14
|
|
|
|
/*
|
|
* x86/PVH: If set, ACPI RSDP can be placed at any address. Otherwise RSDP
|
|
* must be located in lower 1MB, as required by ACPI Specification for IA-PC
|
|
* systems.
|
|
* This feature flag is only consulted if XEN_ELFNOTE_GUEST_OS contains
|
|
* the "linux" string.
|
|
*/
|
|
#define XENFEAT_linux_rsdp_unrestricted 15
|
|
|
|
#define XENFEAT_NR_SUBMAPS 1
|
|
|
|
#endif /* __XEN_PUBLIC_FEATURES_H__ */
|