| /* |
| * Miscellaneous target-dependent HMP commands |
| * |
| * Copyright (c) 2003-2004 Fabrice Bellard |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining a copy |
| * of this software and associated documentation files (the "Software"), to deal |
| * in the Software without restriction, including without limitation the rights |
| * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
| * copies of the Software, and to permit persons to whom the Software is |
| * furnished to do so, subject to the following conditions: |
| * |
| * The above copyright notice and this permission notice shall be included in |
| * all copies or substantial portions of the Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
| * THE SOFTWARE. |
| */ |
| |
| #include "qemu/osdep.h" |
| #include "disas/disas.h" |
| #include "exec/address-spaces.h" |
| #include "exec/memory.h" |
| #include "monitor/hmp-target.h" |
| #include "monitor/monitor-internal.h" |
| #include "qapi/error.h" |
| #include "qapi/qmp/qdict.h" |
| #include "sysemu/hw_accel.h" |
| |
| /* Set the current CPU defined by the user. Callers must hold BQL. */ |
| int monitor_set_cpu(Monitor *mon, int cpu_index) |
| { |
| CPUState *cpu; |
| |
| cpu = qemu_get_cpu(cpu_index); |
| if (cpu == NULL) { |
| return -1; |
| } |
| g_free(mon->mon_cpu_path); |
| mon->mon_cpu_path = object_get_canonical_path(OBJECT(cpu)); |
| return 0; |
| } |
| |
| /* Callers must hold BQL. */ |
| static CPUState *mon_get_cpu_sync(Monitor *mon, bool synchronize) |
| { |
| CPUState *cpu = NULL; |
| |
| if (mon->mon_cpu_path) { |
| cpu = (CPUState *) object_resolve_path_type(mon->mon_cpu_path, |
| TYPE_CPU, NULL); |
| if (!cpu) { |
| g_free(mon->mon_cpu_path); |
| mon->mon_cpu_path = NULL; |
| } |
| } |
| if (!mon->mon_cpu_path) { |
| if (!first_cpu) { |
| return NULL; |
| } |
| monitor_set_cpu(mon, first_cpu->cpu_index); |
| cpu = first_cpu; |
| } |
| assert(cpu != NULL); |
| if (synchronize) { |
| cpu_synchronize_state(cpu); |
| } |
| return cpu; |
| } |
| |
| CPUState *mon_get_cpu(Monitor *mon) |
| { |
| return mon_get_cpu_sync(mon, true); |
| } |
| |
| CPUArchState *mon_get_cpu_env(Monitor *mon) |
| { |
| CPUState *cs = mon_get_cpu(mon); |
| |
| return cs ? cpu_env(cs) : NULL; |
| } |
| |
| int monitor_get_cpu_index(Monitor *mon) |
| { |
| CPUState *cs = mon_get_cpu_sync(mon, false); |
| |
| return cs ? cs->cpu_index : UNASSIGNED_CPU_INDEX; |
| } |
| |
| void hmp_info_registers(Monitor *mon, const QDict *qdict) |
| { |
| bool all_cpus = qdict_get_try_bool(qdict, "cpustate_all", false); |
| int vcpu = qdict_get_try_int(qdict, "vcpu", -1); |
| CPUState *cs; |
| |
| if (all_cpus) { |
| CPU_FOREACH(cs) { |
| monitor_printf(mon, "\nCPU#%d\n", cs->cpu_index); |
| cpu_dump_state(cs, NULL, CPU_DUMP_FPU); |
| } |
| } else { |
| cs = vcpu >= 0 ? qemu_get_cpu(vcpu) : mon_get_cpu(mon); |
| |
| if (!cs) { |
| if (vcpu >= 0) { |
| monitor_printf(mon, "CPU#%d not available\n", vcpu); |
| } else { |
| monitor_printf(mon, "No CPU available\n"); |
| } |
| return; |
| } |
| |
| monitor_printf(mon, "\nCPU#%d\n", cs->cpu_index); |
| cpu_dump_state(cs, NULL, CPU_DUMP_FPU); |
| } |
| } |
| |
| static void memory_dump(Monitor *mon, int count, int format, int wsize, |
| hwaddr addr, int is_physical) |
| { |
| int l, line_size, i, max_digits, len; |
| uint8_t buf[16]; |
| uint64_t v; |
| CPUState *cs = mon_get_cpu(mon); |
| |
| if (!cs && (format == 'i' || !is_physical)) { |
| monitor_printf(mon, "Can not dump without CPU\n"); |
| return; |
| } |
| |
| if (format == 'i') { |
| monitor_disas(mon, cs, addr, count, is_physical); |
| return; |
| } |
| |
| len = wsize * count; |
| if (wsize == 1) { |
| line_size = 8; |
| } else { |
| line_size = 16; |
| } |
| max_digits = 0; |
| |
| switch(format) { |
| case 'o': |
| max_digits = DIV_ROUND_UP(wsize * 8, 3); |
| break; |
| default: |
| case 'x': |
| max_digits = (wsize * 8) / 4; |
| break; |
| case 'u': |
| case 'd': |
| max_digits = DIV_ROUND_UP(wsize * 8 * 10, 33); |
| break; |
| case 'c': |
| wsize = 1; |
| break; |
| } |
| |
| while (len > 0) { |
| if (is_physical) { |
| monitor_printf(mon, HWADDR_FMT_plx ":", addr); |
| } else { |
| monitor_printf(mon, TARGET_FMT_lx ":", (target_ulong)addr); |
| } |
| l = len; |
| if (l > line_size) |
| l = line_size; |
| if (is_physical) { |
| AddressSpace *as = cs ? cs->as : &address_space_memory; |
| MemTxResult r = address_space_read(as, addr, |
| MEMTXATTRS_UNSPECIFIED, buf, l); |
| if (r != MEMTX_OK) { |
| monitor_printf(mon, " Cannot access memory\n"); |
| break; |
| } |
| } else { |
| if (cpu_memory_rw_debug(cs, addr, buf, l, 0) < 0) { |
| monitor_printf(mon, " Cannot access memory\n"); |
| break; |
| } |
| } |
| i = 0; |
| while (i < l) { |
| switch(wsize) { |
| default: |
| case 1: |
| v = ldub_p(buf + i); |
| break; |
| case 2: |
| v = lduw_p(buf + i); |
| break; |
| case 4: |
| v = (uint32_t)ldl_p(buf + i); |
| break; |
| case 8: |
| v = ldq_p(buf + i); |
| break; |
| } |
| monitor_printf(mon, " "); |
| switch(format) { |
| case 'o': |
| monitor_printf(mon, "%#*" PRIo64, max_digits, v); |
| break; |
| case 'x': |
| monitor_printf(mon, "0x%0*" PRIx64, max_digits, v); |
| break; |
| case 'u': |
| monitor_printf(mon, "%*" PRIu64, max_digits, v); |
| break; |
| case 'd': |
| monitor_printf(mon, "%*" PRId64, max_digits, v); |
| break; |
| case 'c': |
| monitor_printc(mon, v); |
| break; |
| } |
| i += wsize; |
| } |
| monitor_printf(mon, "\n"); |
| addr += l; |
| len -= l; |
| } |
| } |
| |
| void hmp_memory_dump(Monitor *mon, const QDict *qdict) |
| { |
| int count = qdict_get_int(qdict, "count"); |
| int format = qdict_get_int(qdict, "format"); |
| int size = qdict_get_int(qdict, "size"); |
| target_long addr = qdict_get_int(qdict, "addr"); |
| |
| memory_dump(mon, count, format, size, addr, 0); |
| } |
| |
| void hmp_physical_memory_dump(Monitor *mon, const QDict *qdict) |
| { |
| int count = qdict_get_int(qdict, "count"); |
| int format = qdict_get_int(qdict, "format"); |
| int size = qdict_get_int(qdict, "size"); |
| hwaddr addr = qdict_get_int(qdict, "addr"); |
| |
| memory_dump(mon, count, format, size, addr, 1); |
| } |
| |
| void *gpa2hva(MemoryRegion **p_mr, hwaddr addr, uint64_t size, Error **errp) |
| { |
| Int128 gpa_region_size; |
| MemoryRegionSection mrs = memory_region_find(get_system_memory(), |
| addr, size); |
| |
| if (!mrs.mr) { |
| error_setg(errp, "No memory is mapped at address 0x%" HWADDR_PRIx, addr); |
| return NULL; |
| } |
| |
| if (!memory_region_is_ram(mrs.mr) && !memory_region_is_romd(mrs.mr)) { |
| error_setg(errp, "Memory at address 0x%" HWADDR_PRIx " is not RAM", addr); |
| memory_region_unref(mrs.mr); |
| return NULL; |
| } |
| |
| gpa_region_size = int128_make64(size); |
| if (int128_lt(mrs.size, gpa_region_size)) { |
| error_setg(errp, "Size of memory region at 0x%" HWADDR_PRIx |
| " exceeded.", addr); |
| memory_region_unref(mrs.mr); |
| return NULL; |
| } |
| |
| *p_mr = mrs.mr; |
| return qemu_map_ram_ptr(mrs.mr->ram_block, mrs.offset_within_region); |
| } |
| |
| void hmp_gpa2hva(Monitor *mon, const QDict *qdict) |
| { |
| hwaddr addr = qdict_get_int(qdict, "addr"); |
| Error *local_err = NULL; |
| MemoryRegion *mr = NULL; |
| void *ptr; |
| |
| ptr = gpa2hva(&mr, addr, 1, &local_err); |
| if (local_err) { |
| error_report_err(local_err); |
| return; |
| } |
| |
| monitor_printf(mon, "Host virtual address for 0x%" HWADDR_PRIx |
| " (%s) is %p\n", |
| addr, mr->name, ptr); |
| |
| memory_region_unref(mr); |
| } |
| |
| void hmp_gva2gpa(Monitor *mon, const QDict *qdict) |
| { |
| target_ulong addr = qdict_get_int(qdict, "addr"); |
| MemTxAttrs attrs; |
| CPUState *cs = mon_get_cpu(mon); |
| hwaddr gpa; |
| |
| if (!cs) { |
| monitor_printf(mon, "No cpu\n"); |
| return; |
| } |
| |
| gpa = cpu_get_phys_page_attrs_debug(cs, addr & TARGET_PAGE_MASK, &attrs); |
| if (gpa == -1) { |
| monitor_printf(mon, "Unmapped\n"); |
| } else { |
| monitor_printf(mon, "gpa: %#" HWADDR_PRIx "\n", |
| gpa + (addr & ~TARGET_PAGE_MASK)); |
| } |
| } |
| |
| #ifdef CONFIG_LINUX |
| static uint64_t vtop(void *ptr, Error **errp) |
| { |
| uint64_t pinfo; |
| uint64_t ret = -1; |
| uintptr_t addr = (uintptr_t) ptr; |
| uintptr_t pagesize = qemu_real_host_page_size(); |
| off_t offset = addr / pagesize * sizeof(pinfo); |
| int fd; |
| |
| fd = open("/proc/self/pagemap", O_RDONLY); |
| if (fd == -1) { |
| error_setg_errno(errp, errno, "Cannot open /proc/self/pagemap"); |
| return -1; |
| } |
| |
| /* Force copy-on-write if necessary. */ |
| qatomic_add((uint8_t *)ptr, 0); |
| |
| if (pread(fd, &pinfo, sizeof(pinfo), offset) != sizeof(pinfo)) { |
| error_setg_errno(errp, errno, "Cannot read pagemap"); |
| goto out; |
| } |
| if ((pinfo & (1ull << 63)) == 0) { |
| error_setg(errp, "Page not present"); |
| goto out; |
| } |
| ret = ((pinfo & 0x007fffffffffffffull) * pagesize) | (addr & (pagesize - 1)); |
| |
| out: |
| close(fd); |
| return ret; |
| } |
| |
| void hmp_gpa2hpa(Monitor *mon, const QDict *qdict) |
| { |
| hwaddr addr = qdict_get_int(qdict, "addr"); |
| Error *local_err = NULL; |
| MemoryRegion *mr = NULL; |
| void *ptr; |
| uint64_t physaddr; |
| |
| ptr = gpa2hva(&mr, addr, 1, &local_err); |
| if (local_err) { |
| error_report_err(local_err); |
| return; |
| } |
| |
| physaddr = vtop(ptr, &local_err); |
| if (local_err) { |
| error_report_err(local_err); |
| } else { |
| monitor_printf(mon, "Host physical address for 0x%" HWADDR_PRIx |
| " (%s) is 0x%" PRIx64 "\n", |
| addr, mr->name, (uint64_t) physaddr); |
| } |
| |
| memory_region_unref(mr); |
| } |
| #endif |
