xref: /freebsd/sys/contrib/xen/hvm/e820.h (revision b077aed33b7b6aefca7b17ddb250cf521f938613)
1 /*
2  * Permission is hereby granted, free of charge, to any person obtaining a copy
3  * of this software and associated documentation files (the "Software"), to
4  * deal in the Software without restriction, including without limitation the
5  * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
6  * sell copies of the Software, and to permit persons to whom the Software is
7  * furnished to do so, subject to the following conditions:
8  *
9  * The above copyright notice and this permission notice shall be included in
10  * all copies or substantial portions of the Software.
11  *
12  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
13  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
14  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
15  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
16  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
17  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
18  * DEALINGS IN THE SOFTWARE.
19  *
20  * Copyright (c) 2006, Keir Fraser
21  */
22 
23 #ifndef __XEN_PUBLIC_HVM_E820_H__
24 #define __XEN_PUBLIC_HVM_E820_H__
25 
26 #include "../xen.h"
27 
28 /* E820 location in HVM virtual address space. */
29 #define HVM_E820_PAGE        0x00090000
30 #define HVM_E820_NR_OFFSET   0x000001E8
31 #define HVM_E820_OFFSET      0x000002D0
32 
33 #define HVM_BELOW_4G_RAM_END        0xF0000000
34 #define HVM_BELOW_4G_MMIO_START     HVM_BELOW_4G_RAM_END
35 #define HVM_BELOW_4G_MMIO_LENGTH    ((xen_mk_ullong(1) << 32) - \
36                                      HVM_BELOW_4G_MMIO_START)
37 
38 #endif /* __XEN_PUBLIC_HVM_E820_H__ */
39