[421] | 1 | /* |
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| 2 | * sys_display.c - display the current state of a kernel structure on TXT0 |
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| 3 | * |
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| 4 | * Author Alain Greiner (2016,2017) |
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| 5 | * |
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| 6 | * Copyright (c) UPMC Sorbonne Universites |
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| 7 | * |
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| 8 | * This file is part of ALMOS-MKH. |
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| 9 | * |
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| 10 | * ALMOS-MKH is free software; you can redistribute it and/or modify it |
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| 11 | * under the terms of the GNU General Public License as published by |
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| 12 | * the Free Software Foundation; version 2.0 of the License. |
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| 13 | * |
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| 14 | * ALMOS-MKH is distributed in the hope that it will be useful, but |
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| 15 | * WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 17 | * General Public License for more details. |
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| 18 | * |
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| 19 | * You should have received a copy of the GNU General Public License |
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| 20 | * along with ALMOS-MKH; if not, write to the Free Software Foundation, |
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| 21 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
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| 22 | */ |
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| 23 | |
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| 24 | #include <hal_types.h> |
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| 25 | #include <hal_uspace.h> |
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| 26 | #include <errno.h> |
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| 27 | #include <cluster.h> |
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| 28 | #include <thread.h> |
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| 29 | #include <process.h> |
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| 30 | |
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| 31 | |
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| 32 | ///////////////////////////// |
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| 33 | int sys_display( reg_t type, |
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| 34 | reg_t arg0, |
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| 35 | reg_t arg1 ) |
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| 36 | { |
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| 37 | if( type == DISPLAY_STRING ) |
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| 38 | { |
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| 39 | paddr_t paddr; |
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| 40 | char kbuf[256]; |
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| 41 | |
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| 42 | char * string = (char *)arg0; |
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| 43 | |
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| 44 | // check string in user space |
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| 45 | if( vmm_v2p_translate( false , string , &paddr ) ) return -1; |
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| 46 | |
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| 47 | // ckeck string length |
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| 48 | if( hal_strlen_from_uspace( string ) >= 256 ) return -1; |
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| 49 | |
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| 50 | // copy string in kernel space |
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| 51 | hal_strcpy_from_uspace( kbuf , string , 256 ); |
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| 52 | |
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| 53 | // get thread, process and core |
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| 54 | thread_t * this = CURRENT_THREAD; |
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| 55 | process_t * process = this->process; |
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| 56 | core_t * core = this->core; |
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| 57 | |
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| 58 | // print message on TXT0 kernel terminal |
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| 59 | printk("\n[USER] thread %x / process %x / core[%x,%d] / cycle %d\n %s", |
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| 60 | this->trdid , process->pid , local_cxy, core->lid , |
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| 61 | (uint32_t)hal_get_cycles() , kbuf ); |
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| 62 | |
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| 63 | return 0; |
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| 64 | } |
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| 65 | else if( type == DISPLAY_VMM ) |
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| 66 | { |
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| 67 | pid_t pid = (pid_t)arg0; |
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| 68 | |
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| 69 | // get extended pointer on reference process |
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| 70 | xptr_t process_xp = cluster_get_reference_process_from_pid( pid ); |
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| 71 | |
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| 72 | if( process_xp == XPTR_NULL ) return -1; |
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| 73 | |
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| 74 | // get cluster and local pointer on process |
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| 75 | cxy_t process_cxy = GET_CXY( process_xp ); |
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| 76 | process_t * process_ptr = (process_t *)GET_PTR( process_xp ); |
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| 77 | |
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| 78 | // call kernel function |
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| 79 | if( process_cxy == local_cxy ) |
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| 80 | { |
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| 81 | vmm_display( process_ptr , true ); |
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| 82 | } |
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| 83 | else |
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| 84 | { |
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| 85 | rpc_vmm_display_client( process_cxy , process_ptr , true ); |
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| 86 | } |
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| 87 | |
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| 88 | return 0; |
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| 89 | } |
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| 90 | else if( type == DISPLAY_SCHED ) |
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| 91 | { |
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| 92 | cxy_t cxy = (cxy_t)arg0; |
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| 93 | lid_t lid = (lid_t)arg1; |
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| 94 | |
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| 95 | // check cluster argument |
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| 96 | if( cluster_is_undefined( cxy ) ) return -1; |
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| 97 | |
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| 98 | // check core argument |
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| 99 | if( lid >= LOCAL_CLUSTER->cores_nr ) return -1; |
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| 100 | |
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| 101 | // call kernel function |
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| 102 | if( cxy == local_cxy ) |
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| 103 | { |
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| 104 | sched_display( lid ); |
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| 105 | } |
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| 106 | else |
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| 107 | { |
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| 108 | rpc_sched_display_client( cxy , lid ); |
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| 109 | } |
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| 110 | |
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| 111 | return 0; |
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| 112 | } |
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| 113 | else if( type == DISPLAY_PROCESS ) |
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| 114 | { |
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| 115 | cxy_t cxy = (cxy_t)arg0; |
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| 116 | |
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| 117 | // check cluster argument |
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| 118 | if( cluster_is_undefined( cxy ) ) return -1; |
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| 119 | |
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| 120 | // call kernel function |
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| 121 | cluster_processes_display( cxy ); |
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| 122 | |
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| 123 | return 0; |
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| 124 | } |
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| 125 | else if( type == DISPLAY_VFS ) |
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| 126 | { |
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| 127 | // call kernel function |
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| 128 | process_t * process = CURRENT_THREAD->process; |
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| 129 | vfs_display( process->vfs_root_xp ); |
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| 130 | |
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| 131 | return 0; |
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| 132 | } |
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| 133 | else if( type == DISPLAY_CHDEV ) |
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| 134 | { |
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| 135 | // call kernel function |
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| 136 | chdev_dir_display(); |
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| 137 | |
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| 138 | return 0; |
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| 139 | } |
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| 140 | else return -1; |
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| 141 | |
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| 142 | } // end sys_get_sched() |
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