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diff --git a/sys/xen/interface/arch-x86/cpuid.h b/sys/xen/interface/arch-x86/cpuid.h
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-/******************************************************************************
- * arch-x86/cpuid.h
- *
- * CPUID interface to Xen.
- *
- * 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) 2007 Citrix Systems, Inc.
- *
- * Authors:
- * Keir Fraser <keir.fraser@citrix.com>
- */
-
-#ifndef __XEN_PUBLIC_ARCH_X86_CPUID_H__
-#define __XEN_PUBLIC_ARCH_X86_CPUID_H__
-
-/* Xen identification leaves start at 0x40000000. */
-#define XEN_CPUID_FIRST_LEAF 0x40000000
-#define XEN_CPUID_LEAF(i) (XEN_CPUID_FIRST_LEAF + (i))
-
-/*
- * Leaf 1 (0x40000000)
- * EAX: Largest Xen-information leaf. All leaves up to an including @EAX
- * are supported by the Xen host.
- * EBX-EDX: "XenVMMXenVMM" signature, allowing positive identification
- * of a Xen host.
- */
-#define XEN_CPUID_SIGNATURE_EBX 0x566e6558 /* "XenV" */
-#define XEN_CPUID_SIGNATURE_ECX 0x65584d4d /* "MMXe" */
-#define XEN_CPUID_SIGNATURE_EDX 0x4d4d566e /* "nVMM" */
-
-/*
- * Leaf 2 (0x40000001)
- * EAX[31:16]: Xen major version.
- * EAX[15: 0]: Xen minor version.
- * EBX-EDX: Reserved (currently all zeroes).
- */
-
-/*
- * Leaf 3 (0x40000002)
- * EAX: Number of hypercall transfer pages. This register is always guaranteed
- * to specify one hypercall page.
- * EBX: Base address of Xen-specific MSRs.
- * ECX: Features 1. Unused bits are set to zero.
- * EDX: Features 2. Unused bits are set to zero.
- */
-
-/* Does the host support MMU_PT_UPDATE_PRESERVE_AD for this guest? */
-#define _XEN_CPUID_FEAT1_MMU_PT_UPDATE_PRESERVE_AD 0
-#define XEN_CPUID_FEAT1_MMU_PT_UPDATE_PRESERVE_AD (1u<<0)
-
-#endif /* __XEN_PUBLIC_ARCH_X86_CPUID_H__ */
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