1 /** 2 * Functions for generating pseudo-random CCIX PER error sections. 3 * 4 * Author: Lawrence.Tang@arm.com 5 **/ 6 7 #include <stdlib.h> 8 #include <libcper/BaseTypes.h> 9 #include <libcper/generator/gen-utils.h> 10 #include <libcper/generator/sections/gen-section.h> 11 12 //Generates a single pseudo-random CCIX PER error section, saving the resulting address to the given 13 //location. Returns the size of the newly created section. generate_section_ccix_per(void ** location)14size_t generate_section_ccix_per(void **location) 15 { 16 //Create a random length for the CCIX PER log. 17 //The log attached here does not necessarily conform to the CCIX specification, and is simply random. 18 int log_len = (rand() % 5 + 1) * 32; 19 20 //Create random bytes. 21 int size = 16 + log_len; 22 UINT8 *bytes = generate_random_bytes(size); 23 24 //Set reserved areas to zero. 25 UINT32 *validation = (UINT32 *)(bytes + 4); 26 *validation &= 0x7; //Validation bits 3-63. 27 *(validation + 1) = 0; //Validation bits 3-63. 28 *(bytes + 13) &= 0x1F; //CCIX port ID bits 5-7. 29 UINT16 *reserved = (UINT16 *)(bytes + 14); 30 *reserved = 0; //Reserved bytes 14-15. 31 32 //Set expected values. 33 UINT32 *length = (UINT32 *)bytes; 34 *length = size; 35 36 //Set return values, exit. 37 *location = bytes; 38 return size; 39 } 40