diff options
author | David Woodhouse <dwmw2@infradead.org> | 2007-07-23 10:20:10 +0100 |
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committer | David Woodhouse <dwmw2@infradead.org> | 2007-07-23 10:20:10 +0100 |
commit | 39fe5434cb9de5da40510028b17b96bc4eb312b3 (patch) | |
tree | 7a02a317b9ad57da51ca99887c119e779ccf3f13 /include/xen/interface/features.h | |
parent | 0fc72b81d3111d114ab378935b1cf07680ca1289 (diff) | |
parent | f695baf2df9e0413d3521661070103711545207a (diff) |
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
Diffstat (limited to 'include/xen/interface/features.h')
-rw-r--r-- | include/xen/interface/features.h | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/include/xen/interface/features.h b/include/xen/interface/features.h new file mode 100644 index 00000000000..d73228d1648 --- /dev/null +++ b/include/xen/interface/features.h @@ -0,0 +1,43 @@ +/****************************************************************************** + * 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 + +#define XENFEAT_NR_SUBMAPS 1 + +#endif /* __XEN_PUBLIC_FEATURES_H__ */ |