230bc32186
New interfaces for PV drivers: - Xen transcedent memory - USB IO - SCSI IO PCI IO improvements: - PCI MSI support - PCI Express AER support New features: - xen honors flags to be placed into guest kernel available pte bits if enabled (for grant table) - support for 128 vcpus (old interface is still present and supports up to 32 vcpus) - PCI passthrough: new hypercalls to support SR-IOV - new hypercall for physical cpu hotplugging - new hypercall for physical page offlining - fixes to compile with clang - machine check recovery mechanism
94 lines
3.2 KiB
C
94 lines
3.2 KiB
C
/* $NetBSD: features.h,v 1.1.1.2 2011/12/07 14:41:15 cegger Exp $ */
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/******************************************************************************
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* features.h
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*
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* Feature flags, reported by XENVER_get_features.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to
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* deal in the Software without restriction, including without limitation the
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* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
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* sell copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*
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* Copyright (c) 2006, Keir Fraser <keir@xensource.com>
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*/
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#ifndef __XEN_PUBLIC_FEATURES_H__
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#define __XEN_PUBLIC_FEATURES_H__
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/*
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* If set, the guest does not need to write-protect its pagetables, and can
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* update them via direct writes.
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*/
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#define XENFEAT_writable_page_tables 0
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/*
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* If set, the guest does not need to write-protect its segment descriptor
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* tables, and can update them via direct writes.
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*/
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#define XENFEAT_writable_descriptor_tables 1
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/*
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* If set, translation between the guest's 'pseudo-physical' address space
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* and the host's machine address space are handled by the hypervisor. In this
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* mode the guest does not need to perform phys-to/from-machine translations
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* when performing page table operations.
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*/
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#define XENFEAT_auto_translated_physmap 2
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/* If set, the guest is running in supervisor mode (e.g., x86 ring 0). */
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#define XENFEAT_supervisor_mode_kernel 3
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/*
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* If set, the guest does not need to allocate x86 PAE page directories
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* below 4GB. This flag is usually implied by auto_translated_physmap.
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*/
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#define XENFEAT_pae_pgdir_above_4gb 4
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/* x86: Does this Xen host support the MMU_PT_UPDATE_PRESERVE_AD hypercall? */
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#define XENFEAT_mmu_pt_update_preserve_ad 5
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/* x86: Does this Xen host support the MMU_{CLEAR,COPY}_PAGE hypercall? */
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#define XENFEAT_highmem_assist 6
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/*
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* If set, GNTTABOP_map_grant_ref honors flags to be placed into guest kernel
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* available pte bits.
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*/
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#define XENFEAT_gnttab_map_avail_bits 7
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/* x86: Does this Xen host support the HVM callback vector type? */
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#define XENFEAT_hvm_callback_vector 8
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/* x86: pvclock algorithm is safe to use on HVM */
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#define XENFEAT_hvm_safe_pvclock 9
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/* x86: pirq can be used by HVM guests */
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#define XENFEAT_hvm_pirqs 10
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#define XENFEAT_NR_SUBMAPS 1
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#endif /* __XEN_PUBLIC_FEATURES_H__ */
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/*
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* Local variables:
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* mode: C
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* c-set-style: "BSD"
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* c-basic-offset: 4
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* tab-width: 4
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* indent-tabs-mode: nil
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* End:
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*/
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