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