From 076b35b5a56bca57c4aa41044ed304fe9c45d6c5 Mon Sep 17 00:00:00 2001 From: Nikunj A Dadhania Date: Thu, 7 May 2015 15:33:57 +1000 Subject: [PATCH] machine: add default_ram_size to machine class Machines types can have different requirement for default ram size. Introduce a member in the machine class and set the current default_ram_size to 128MB. For QEMUMachine types override the value during the registration of the machine and for MachineClass introduce the generic class init setting the default_ram_size. Add helpers [K,M,G,T,P,E]_BYTE for better readability and easy usage Signed-off-by: Nikunj A Dadhania Reviewed-by: Thomas Huth Reviewed-by: David Gibson Acked-by: Paolo Bonzini Signed-off-by: David Gibson Signed-off-by: Alexander Graf --- hw/core/machine.c | 9 +++++++++ include/hw/boards.h | 1 + include/qemu-common.h | 6 ++++++ vl.c | 30 ++++++++++++++++-------------- 4 files changed, 32 insertions(+), 14 deletions(-) diff --git a/hw/core/machine.c b/hw/core/machine.c index 25c45e6f9d..ac4654e9dd 100644 --- a/hw/core/machine.c +++ b/hw/core/machine.c @@ -294,6 +294,14 @@ static void machine_init_notify(Notifier *notifier, void *data) foreach_dynamic_sysbus_device(error_on_sysbus_device, NULL); } +static void machine_class_init(ObjectClass *oc, void *data) +{ + MachineClass *mc = MACHINE_CLASS(oc); + + /* Default 128 MB as guest ram size */ + mc->default_ram_size = 128 * M_BYTE; +} + static void machine_initfn(Object *obj) { MachineState *ms = MACHINE(obj); @@ -463,6 +471,7 @@ static const TypeInfo machine_info = { .parent = TYPE_OBJECT, .abstract = true, .class_size = sizeof(MachineClass), + .class_init = machine_class_init, .instance_size = sizeof(MachineState), .instance_init = machine_initfn, .instance_finalize = machine_finalize, diff --git a/include/hw/boards.h b/include/hw/boards.h index ff79797ce4..6379901528 100644 --- a/include/hw/boards.h +++ b/include/hw/boards.h @@ -106,6 +106,7 @@ struct MachineClass { const char *default_display; GlobalProperty *compat_props; const char *hw_version; + ram_addr_t default_ram_size; HotplugHandler *(*get_hotplug_handler)(MachineState *machine, DeviceState *dev); diff --git a/include/qemu-common.h b/include/qemu-common.h index 6b373ff7e3..d52d09cfb8 100644 --- a/include/qemu-common.h +++ b/include/qemu-common.h @@ -186,6 +186,12 @@ int64_t strtosz(const char *nptr, char **end); int64_t strtosz_suffix(const char *nptr, char **end, const char default_suffix); int64_t strtosz_suffix_unit(const char *nptr, char **end, const char default_suffix, int64_t unit); +#define K_BYTE (1ULL << 10) +#define M_BYTE (1ULL << 20) +#define G_BYTE (1ULL << 30) +#define T_BYTE (1ULL << 40) +#define P_BYTE (1ULL << 50) +#define E_BYTE (1ULL << 60) /* used to print char* safely */ #define STR_OR_NULL(str) ((str) ? (str) : "null") diff --git a/vl.c b/vl.c index 1d4c0890f2..6c7e4e4c7a 100644 --- a/vl.c +++ b/vl.c @@ -120,8 +120,6 @@ int main(int argc, char **argv) #include "qom/object_interfaces.h" #include "qapi-event.h" -#define DEFAULT_RAM_SIZE 128 - #define MAX_VIRTIO_CONSOLES 1 #define MAX_SCLP_CONSOLES 1 @@ -1310,7 +1308,11 @@ void hmp_usb_del(Monitor *mon, const QDict *qdict) MachineState *current_machine; -static void machine_class_init(ObjectClass *oc, void *data) +/* + * Transitional class registration/init used for converting from + * legacy QEMUMachine to MachineClass. + */ +static void qemu_machine_class_init(ObjectClass *oc, void *data) { MachineClass *mc = MACHINE_CLASS(oc); QEMUMachine *qm = data; @@ -1333,7 +1335,7 @@ int qemu_register_machine(QEMUMachine *m) TypeInfo ti = { .name = name, .parent = TYPE_MACHINE, - .class_init = machine_class_init, + .class_init = qemu_machine_class_init, .class_data = (void *)m, }; @@ -2647,13 +2649,13 @@ out: return 0; } -static void set_memory_options(uint64_t *ram_slots, ram_addr_t *maxram_size) +static void set_memory_options(uint64_t *ram_slots, ram_addr_t *maxram_size, + MachineClass *mc) { 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; + const ram_addr_t default_ram_size = mc->default_ram_size; QemuOpts *opts = qemu_find_opts_singleton("memory"); sz = 0; @@ -3769,7 +3771,13 @@ int main(int argc, char **argv, char **envp) machine_class = machine_parse(optarg); } - set_memory_options(&ram_slots, &maxram_size); + if (machine_class == NULL) { + fprintf(stderr, "No machine specified, and there is no default.\n" + "Use -machine help to list supported machines!\n"); + exit(1); + } + + set_memory_options(&ram_slots, &maxram_size, machine_class); loc_set_none(); @@ -3798,12 +3806,6 @@ int main(int argc, char **argv, char **envp) } #endif - if (machine_class == NULL) { - fprintf(stderr, "No machine specified, and there is no default.\n" - "Use -machine help to list supported machines!\n"); - exit(1); - } - current_machine = MACHINE(object_new(object_class_get_name( OBJECT_CLASS(machine_class)))); if (machine_help_func(qemu_get_machine_opts(), current_machine)) {