1336809Sdim/******************************************************************************
2336809Sdim * hvm/hvm_info_table.h
3353358Sdim *
4353358Sdim * HVM parameter and information table, written into guest memory map.
5353358Sdim *
6336809Sdim * Permission is hereby granted, free of charge, to any person obtaining a copy
7336809Sdim * of this software and associated documentation files (the "Software"), to
8336809Sdim * deal in the Software without restriction, including without limitation the
9336809Sdim * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
10336809Sdim * sell copies of the Software, and to permit persons to whom the Software is
11336809Sdim * furnished to do so, subject to the following conditions:
12336809Sdim *
13336809Sdim * The above copyright notice and this permission notice shall be included in
14336809Sdim * all copies or substantial portions of the Software.
15336809Sdim *
16336809Sdim * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17336809Sdim * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18360784Sdim * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
19336809Sdim * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20336809Sdim * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
21336809Sdim * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
22336809Sdim * DEALINGS IN THE SOFTWARE.
23336809Sdim */
24360784Sdim
25360784Sdim#ifndef __XEN_PUBLIC_HVM_HVM_INFO_TABLE_H__
26360784Sdim#define __XEN_PUBLIC_HVM_HVM_INFO_TABLE_H__
27360784Sdim
28360784Sdim#define HVM_INFO_PFN         0x09F
29336809Sdim#define HVM_INFO_OFFSET      0x800
30353358Sdim#define HVM_INFO_PADDR       ((HVM_INFO_PFN << 12) + HVM_INFO_OFFSET)
31336809Sdim
32336809Sdim/* Maximum we can support with current vLAPIC ID mapping. */
33336809Sdim#define HVM_MAX_VCPUS        128
34336809Sdim
35336809Sdimstruct hvm_info_table {
36336809Sdim    char        signature[8]; /* "HVM INFO" */
37336809Sdim    uint32_t    length;
38336809Sdim    uint8_t     checksum;
39336809Sdim
40336809Sdim    /* Should firmware build APIC descriptors (APIC MADT / MP BIOS)? */
41336809Sdim    uint8_t     apic_mode;
42336809Sdim
43336809Sdim    /* How many CPUs does this domain have? */
44336809Sdim    uint32_t    nr_vcpus;
45336809Sdim
46336809Sdim    /*
47336809Sdim     * MEMORY MAP provided by HVM domain builder.
48336809Sdim     * Notes:
49336809Sdim     *  1. page_to_phys(x) = x << 12
50336809Sdim     *  2. If a field is zero, the corresponding range does not exist.
51336809Sdim     */
52336809Sdim    /*
53336809Sdim     *  0x0 to page_to_phys(low_mem_pgend)-1:
54336809Sdim     *    RAM below 4GB (except for VGA hole 0xA0000-0xBFFFF)
55336809Sdim     */
56336809Sdim    uint32_t    low_mem_pgend;
57    /*
58     *  page_to_phys(reserved_mem_pgstart) to 0xFFFFFFFF:
59     *    Reserved for special memory mappings
60     */
61    uint32_t    reserved_mem_pgstart;
62    /*
63     *  0x100000000 to page_to_phys(high_mem_pgend)-1:
64     *    RAM above 4GB
65     */
66    uint32_t    high_mem_pgend;
67
68    /* Bitmap of which CPUs are online at boot time. */
69    uint8_t     vcpu_online[(HVM_MAX_VCPUS + 7)/8];
70};
71
72#endif /* __XEN_PUBLIC_HVM_HVM_INFO_TABLE_H__ */
73