1671f760bSEmilio G. Cota /* 2671f760bSEmilio G. Cota * Copyright (C) 2018, Emilio G. Cota <cota@braap.org> 3671f760bSEmilio G. Cota * 4671f760bSEmilio G. Cota * License: GNU GPL, version 2 or later. 5671f760bSEmilio G. Cota * See the COPYING file in the top-level directory. 6671f760bSEmilio G. Cota */ 7671f760bSEmilio G. Cota #include <inttypes.h> 8671f760bSEmilio G. Cota #include <assert.h> 9671f760bSEmilio G. Cota #include <stdlib.h> 10671f760bSEmilio G. Cota #include <string.h> 11671f760bSEmilio G. Cota #include <unistd.h> 12671f760bSEmilio G. Cota #include <stdio.h> 13671f760bSEmilio G. Cota #include <glib.h> 14671f760bSEmilio G. Cota 15671f760bSEmilio G. Cota #include <qemu-plugin.h> 16671f760bSEmilio G. Cota 173fb356ccSAlex Bennée QEMU_PLUGIN_EXPORT int qemu_plugin_version = QEMU_PLUGIN_VERSION; 183fb356ccSAlex Bennée 19*0eca92e2SAlex Bennée static uint64_t inline_mem_count; 20*0eca92e2SAlex Bennée static uint64_t cb_mem_count; 21671f760bSEmilio G. Cota static uint64_t io_count; 22*0eca92e2SAlex Bennée static bool do_inline, do_callback; 23671f760bSEmilio G. Cota static bool do_haddr; 24671f760bSEmilio G. Cota static enum qemu_plugin_mem_rw rw = QEMU_PLUGIN_MEM_RW; 25671f760bSEmilio G. Cota 26671f760bSEmilio G. Cota static void plugin_exit(qemu_plugin_id_t id, void *p) 27671f760bSEmilio G. Cota { 28671f760bSEmilio G. Cota g_autoptr(GString) out = g_string_new(""); 29671f760bSEmilio G. Cota 30*0eca92e2SAlex Bennée if (do_inline) { 31*0eca92e2SAlex Bennée g_string_printf(out, "inline mem accesses: %" PRIu64 "\n", inline_mem_count); 32*0eca92e2SAlex Bennée } 33*0eca92e2SAlex Bennée if (do_callback) { 34*0eca92e2SAlex Bennée g_string_append_printf(out, "callback mem accesses: %" PRIu64 "\n", cb_mem_count); 35*0eca92e2SAlex Bennée } 36671f760bSEmilio G. Cota if (do_haddr) { 374e62bfa9SAlex Bennée g_string_append_printf(out, "io accesses: %" PRIu64 "\n", io_count); 38671f760bSEmilio G. Cota } 39671f760bSEmilio G. Cota qemu_plugin_outs(out->str); 40671f760bSEmilio G. Cota } 41671f760bSEmilio G. Cota 42671f760bSEmilio G. Cota static void vcpu_mem(unsigned int cpu_index, qemu_plugin_meminfo_t meminfo, 43671f760bSEmilio G. Cota uint64_t vaddr, void *udata) 44671f760bSEmilio G. Cota { 45671f760bSEmilio G. Cota if (do_haddr) { 46671f760bSEmilio G. Cota struct qemu_plugin_hwaddr *hwaddr; 47671f760bSEmilio G. Cota hwaddr = qemu_plugin_get_hwaddr(meminfo, vaddr); 48671f760bSEmilio G. Cota if (qemu_plugin_hwaddr_is_io(hwaddr)) { 49671f760bSEmilio G. Cota io_count++; 50671f760bSEmilio G. Cota } else { 51*0eca92e2SAlex Bennée cb_mem_count++; 52671f760bSEmilio G. Cota } 53671f760bSEmilio G. Cota } else { 54*0eca92e2SAlex Bennée cb_mem_count++; 55671f760bSEmilio G. Cota } 56671f760bSEmilio G. Cota } 57671f760bSEmilio G. Cota 58671f760bSEmilio G. Cota static void vcpu_tb_trans(qemu_plugin_id_t id, struct qemu_plugin_tb *tb) 59671f760bSEmilio G. Cota { 60671f760bSEmilio G. Cota size_t n = qemu_plugin_tb_n_insns(tb); 61671f760bSEmilio G. Cota size_t i; 62671f760bSEmilio G. Cota 63671f760bSEmilio G. Cota for (i = 0; i < n; i++) { 64671f760bSEmilio G. Cota struct qemu_plugin_insn *insn = qemu_plugin_tb_get_insn(tb, i); 65671f760bSEmilio G. Cota 66671f760bSEmilio G. Cota if (do_inline) { 67671f760bSEmilio G. Cota qemu_plugin_register_vcpu_mem_inline(insn, rw, 68671f760bSEmilio G. Cota QEMU_PLUGIN_INLINE_ADD_U64, 69*0eca92e2SAlex Bennée &inline_mem_count, 1); 70*0eca92e2SAlex Bennée } 71*0eca92e2SAlex Bennée if (do_callback) { 72671f760bSEmilio G. Cota qemu_plugin_register_vcpu_mem_cb(insn, vcpu_mem, 73671f760bSEmilio G. Cota QEMU_PLUGIN_CB_NO_REGS, 74671f760bSEmilio G. Cota rw, NULL); 75671f760bSEmilio G. Cota } 76671f760bSEmilio G. Cota } 77671f760bSEmilio G. Cota } 78671f760bSEmilio G. Cota 79671f760bSEmilio G. Cota QEMU_PLUGIN_EXPORT int qemu_plugin_install(qemu_plugin_id_t id, 80671f760bSEmilio G. Cota const qemu_info_t *info, 81671f760bSEmilio G. Cota int argc, char **argv) 82671f760bSEmilio G. Cota { 83671f760bSEmilio G. Cota if (argc) { 84671f760bSEmilio G. Cota if (argc >= 3) { 85671f760bSEmilio G. Cota if (!strcmp(argv[2], "haddr")) { 86671f760bSEmilio G. Cota do_haddr = true; 87671f760bSEmilio G. Cota } 88671f760bSEmilio G. Cota } 89671f760bSEmilio G. Cota if (argc >= 2) { 90671f760bSEmilio G. Cota const char *str = argv[1]; 91671f760bSEmilio G. Cota 92671f760bSEmilio G. Cota if (!strcmp(str, "r")) { 93671f760bSEmilio G. Cota rw = QEMU_PLUGIN_MEM_R; 94671f760bSEmilio G. Cota } else if (!strcmp(str, "w")) { 95671f760bSEmilio G. Cota rw = QEMU_PLUGIN_MEM_W; 96671f760bSEmilio G. Cota } 97671f760bSEmilio G. Cota } 98671f760bSEmilio G. Cota if (!strcmp(argv[0], "inline")) { 99671f760bSEmilio G. Cota do_inline = true; 100*0eca92e2SAlex Bennée do_callback = false; 101*0eca92e2SAlex Bennée } else if (!strcmp(argv[0], "both")) { 102*0eca92e2SAlex Bennée do_inline = true; 103*0eca92e2SAlex Bennée do_callback = true; 104*0eca92e2SAlex Bennée } else { 105*0eca92e2SAlex Bennée do_callback = true; 106671f760bSEmilio G. Cota } 107671f760bSEmilio G. Cota } 108671f760bSEmilio G. Cota 109671f760bSEmilio G. Cota qemu_plugin_register_vcpu_tb_trans_cb(id, vcpu_tb_trans); 110671f760bSEmilio G. Cota qemu_plugin_register_atexit_cb(id, plugin_exit, NULL); 111671f760bSEmilio G. Cota return 0; 112671f760bSEmilio G. Cota } 113