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https://github.com/projectacrn/acrn-hypervisor.git
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b447ce3d86
Statically define the per vm RSDP/XSDT/MADT ACPI template tables in vacpi.c, RSDP/XSDT tables are copied to guest physical memory after checksum is calculated. For MADT table, first fix up process id/lapic id in its lapic subtable, then the MADT table's checksum is calculated before it is copies to guest physical memory. Add 8-bit checksum function in util.h Tracked-On: #3601 Signed-off-by: dongshen <dongsheng.x.zhang@intel.com> Reviewed-by: Eddie Dong <eddie.dong@intel.com>
58 lines
1.2 KiB
C
58 lines
1.2 KiB
C
/*
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* Copyright (C) 2018 Intel Corporation. All rights reserved.
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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#ifndef UTIL_H
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#define UTIL_H
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#include <types.h>
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#define offsetof(st, m) __builtin_offsetof(st, m)
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#define va_start __builtin_va_start
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#define va_end __builtin_va_end
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/** Roundup (x/y) to ( x/y + (x%y) ? 1 : 0) **/
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#define INT_DIV_ROUNDUP(x, y) ((((x)+(y))-1)/(y))
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#define min(x, y) ((x) < (y)) ? (x) : (y)
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#define max(x, y) ((x) < (y)) ? (y) : (x)
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/** Replaces 'x' by the string "x". */
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#define STRINGIFY(x) #x
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/* Macro used to check if a value is aligned to the required boundary.
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* Returns TRUE if aligned; FALSE if not aligned
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* NOTE: The required alignment must be a power of 2 (2, 4, 8, 16, 32, etc)
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*/
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static inline bool mem_aligned_check(uint64_t value, uint64_t req_align)
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{
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return ((value & (req_align - 1UL)) == 0UL);
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}
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/**
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* @pre buf != NULL
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*/
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static inline uint8_t calculate_sum8(const void *buf, uint32_t length)
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{
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uint32_t i;
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uint8_t sum = 0U;
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for (i = 0U; i < length; i++) {
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sum += *((const uint8_t *)buf + i);
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}
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return sum;
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}
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/**
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* @pre buf != NULL
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*/
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static inline uint8_t calculate_checksum8(const void *buf, uint32_t len)
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{
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return (uint8_t)(0x100U - calculate_sum8(buf, len));
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}
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#endif /* UTIL_H */
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