This is happening because an actual logic is performed on the memory arguments inside the main's switch, disregarding the config file content.
Solved by extracting the logic on a separate function and calling it after the switch. Signed-off-by: Marcel Apfelbaum <mar...@redhat.com> --- vl.c | 176 +++++++++++++++++++++++++++++++++++-------------------------------- 1 file changed, 92 insertions(+), 84 deletions(-) diff --git a/vl.c b/vl.c index adfdbfd..4877a47 100644 --- a/vl.c +++ b/vl.c @@ -2644,6 +2644,93 @@ out: return 0; } +static void set_memory_options(uint64_t *ram_slots, ram_addr_t *maxram_size) +{ + uint64_t sz; + const char *mem_str; + const char *maxmem_str, *slots_str; + const ram_addr_t default_ram_size = (ram_addr_t)DEFAULT_RAM_SIZE * + 1024 * 1024; + QemuOpts *opts = qemu_find_opts_singleton("memory"); + + ram_size = default_ram_size; + *maxram_size = default_ram_size; + + mem_str = qemu_opt_get(opts, "size"); + if (!mem_str) { + error_report("invalid -m option, missing 'size' option"); + exit(EXIT_FAILURE); + } + if (!*mem_str) { + error_report("missing 'size' option value"); + exit(EXIT_FAILURE); + } + + sz = qemu_opt_get_size(opts, "size", ram_size); + + /* Fix up legacy suffix-less format */ + if (g_ascii_isdigit(mem_str[strlen(mem_str) - 1])) { + uint64_t overflow_check = sz; + + sz <<= 20; + if ((sz >> 20) != overflow_check) { + error_report("too large 'size' option value"); + exit(EXIT_FAILURE); + } + } + + /* backward compatibility behaviour for case "-m 0" */ + if (sz == 0) { + sz = default_ram_size; + } + + sz = QEMU_ALIGN_UP(sz, 8192); + ram_size = sz; + if (ram_size != sz) { + error_report("ram size too large"); + exit(EXIT_FAILURE); + } + *maxram_size = ram_size; + + maxmem_str = qemu_opt_get(opts, "maxmem"); + slots_str = qemu_opt_get(opts, "slots"); + if (maxmem_str && slots_str) { + uint64_t slots; + + sz = qemu_opt_get_size(opts, "maxmem", 0); + if (sz < ram_size) { + error_report("invalid -m option value: maxmem " + "(0x%" PRIx64 ") <= initial memory (0x" + RAM_ADDR_FMT ")", sz, ram_size); + exit(EXIT_FAILURE); + } + + slots = qemu_opt_get_number(opts, "slots", 0); + if ((sz > ram_size) && !slots) { + error_report("invalid -m option value: maxmem " + "(0x%" PRIx64 ") more than initial memory (0x" + RAM_ADDR_FMT ") but no hotplug slots where " + "specified", sz, ram_size); + exit(EXIT_FAILURE); + } + + if ((sz <= ram_size) && slots) { + error_report("invalid -m option value: %" + PRIu64 " hotplug slots where specified but " + "maxmem (0x%" PRIx64 ") <= initial memory (0x" + RAM_ADDR_FMT ")", slots, sz, ram_size); + exit(EXIT_FAILURE); + } + *maxram_size = sz; + *ram_slots = slots; + } else if ((!maxmem_str && slots_str) || + (maxmem_str && !slots_str)) { + error_report("invalid -m option value: missing " + "'%s' option", slots_str ? "maxmem" : "slots"); + exit(EXIT_FAILURE); + } +} + int main(int argc, char **argv, char **envp) { int i; @@ -2679,9 +2766,7 @@ int main(int argc, char **argv, char **envp) }; const char *trace_events = NULL; const char *trace_file = NULL; - const ram_addr_t default_ram_size = (ram_addr_t)DEFAULT_RAM_SIZE * - 1024 * 1024; - ram_addr_t maxram_size = default_ram_size; + ram_addr_t maxram_size; uint64_t ram_slots = 0; FILE *vmstate_dump_file = NULL; Error *main_loop_err = NULL; @@ -2732,7 +2817,6 @@ int main(int argc, char **argv, char **envp) module_call_init(MODULE_INIT_MACHINE); machine_class = find_default_machine(); cpu_model = NULL; - ram_size = default_ram_size; snapshot = 0; cyls = heads = secs = 0; translation = BIOS_ATA_TRANSLATION_AUTO; @@ -3022,92 +3106,13 @@ int main(int argc, char **argv, char **envp) version(); exit(0); break; - case QEMU_OPTION_m: { - uint64_t sz; - const char *mem_str; - const char *maxmem_str, *slots_str; - + case QEMU_OPTION_m: opts = qemu_opts_parse(qemu_find_opts("memory"), optarg, 1); if (!opts) { exit(EXIT_FAILURE); } - - mem_str = qemu_opt_get(opts, "size"); - if (!mem_str) { - error_report("invalid -m option, missing 'size' option"); - exit(EXIT_FAILURE); - } - if (!*mem_str) { - error_report("missing 'size' option value"); - exit(EXIT_FAILURE); - } - - sz = qemu_opt_get_size(opts, "size", ram_size); - - /* Fix up legacy suffix-less format */ - if (g_ascii_isdigit(mem_str[strlen(mem_str) - 1])) { - uint64_t overflow_check = sz; - - sz <<= 20; - if ((sz >> 20) != overflow_check) { - error_report("too large 'size' option value"); - exit(EXIT_FAILURE); - } - } - - /* backward compatibility behaviour for case "-m 0" */ - if (sz == 0) { - sz = default_ram_size; - } - - sz = QEMU_ALIGN_UP(sz, 8192); - ram_size = sz; - if (ram_size != sz) { - error_report("ram size too large"); - exit(EXIT_FAILURE); - } - maxram_size = ram_size; - - maxmem_str = qemu_opt_get(opts, "maxmem"); - slots_str = qemu_opt_get(opts, "slots"); - if (maxmem_str && slots_str) { - uint64_t slots; - - sz = qemu_opt_get_size(opts, "maxmem", 0); - if (sz < ram_size) { - error_report("invalid -m option value: maxmem " - "(0x%" PRIx64 ") <= initial memory (0x" - RAM_ADDR_FMT ")", sz, ram_size); - exit(EXIT_FAILURE); - } - - slots = qemu_opt_get_number(opts, "slots", 0); - if ((sz > ram_size) && !slots) { - error_report("invalid -m option value: maxmem " - "(0x%" PRIx64 ") more than initial memory (0x" - RAM_ADDR_FMT ") but no hotplug slots where " - "specified", sz, ram_size); - exit(EXIT_FAILURE); - } - - if ((sz <= ram_size) && slots) { - error_report("invalid -m option value: %" - PRIu64 " hotplug slots where specified but " - "maxmem (0x%" PRIx64 ") <= initial memory (0x" - RAM_ADDR_FMT ")", slots, sz, ram_size); - exit(EXIT_FAILURE); - } - maxram_size = sz; - ram_slots = slots; - } else if ((!maxmem_str && slots_str) || - (maxmem_str && !slots_str)) { - error_report("invalid -m option value: missing " - "'%s' option", slots_str ? "maxmem" : "slots"); - exit(EXIT_FAILURE); - } break; - } #ifdef CONFIG_TPM case QEMU_OPTION_tpmdev: if (tpm_config_parse(qemu_find_opts("tpmdev"), optarg) < 0) { @@ -3752,6 +3757,9 @@ int main(int argc, char **argv, char **envp) } } } + + set_memory_options(&ram_slots, &maxram_size); + loc_set_none(); os_daemonize(); -- 2.1.0