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machine: use QAPI struct for boot configuration

Browse Source 
As part of converting -boot to a property with a QAPI type, define
the struct and use it throughout QEMU to access boot configuration.
machine_boot_parse takes care of doing the QemuOpts->QAPI conversion by
hand, for now.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20220414165300.555321-2-pbonzini@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Paolo Bonzini 2022-04-14 12:52:56 -04:00
parent 70be1d93f9
commit 97ec4d21e0
18 changed files with 127 additions and 82 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
hw/arm/nseries.c
View File

@ -1365,7 +1365,7 @@ static void n8x0_init(MachineState *machine,
}
if (option_rom[0].name &&
(machine->boot_order[0] == 'n' || !machine->kernel_filename)) {
(machine->boot_config.order[0] == 'n' || !machine->kernel_filename)) {
uint8_t *nolo_tags = g_new(uint8_t, 0x10000);
/* No, wait, better start at the ROM. */
s->mpu->cpu->env.regs[15] = OMAP2_Q2_BASE + 0x400000;

68
hw/core/machine.c
View File

@ -784,6 +784,68 @@ static void machine_set_smp(Object *obj, Visitor *v, const char *name,
machine_parse_smp_config(ms, config, errp);
}
void machine_boot_parse(MachineState *ms, QemuOpts *opts, Error **errp)
{
MachineClass *machine_class = MACHINE_GET_CLASS(ms);
const char *s;
ERRP_GUARD();
ms->boot_config = (BootConfiguration) {
.has_order = true,
.order = (char *)machine_class->default_boot_order,
.has_strict = true,
.strict = false,
};
if (!opts) {
return;
}
s = qemu_opt_get(opts, "order");
if (s) {
validate_bootdevices(s, errp);
if (*errp) {
return;
}
ms->boot_config.order = (char *)s;
}
s = qemu_opt_get(opts, "once");
if (s) {
validate_bootdevices(s, errp);
if (*errp) {
return;
}
ms->boot_config.has_once = true;
ms->boot_config.once = (char *)s;
}
s = qemu_opt_get(opts, "splash");
if (s) {
ms->boot_config.has_splash = true;
ms->boot_config.splash = (char *)s;
}
s = qemu_opt_get(opts, "splash-time");
if (s) {
ms->boot_config.has_splash_time = true;
ms->boot_config.splash_time = qemu_opt_get_number(opts, "splash-time", -1);
}
s = qemu_opt_get(opts, "reboot-timeout");
if (s) {
ms->boot_config.has_reboot_timeout = true;
ms->boot_config.reboot_timeout = qemu_opt_get_number(opts, "reboot-timeout", -1);
}
s = qemu_opt_get(opts, "menu");
if (s) {
ms->boot_config.has_menu = true;
ms->boot_config.menu = qemu_opt_get_bool(opts, "menu", false);
}
ms->boot_config.strict = qemu_opt_get_bool(opts, "strict", false);
}
static void machine_class_init(ObjectClass *oc, void *data)
{
MachineClass *mc = MACHINE_CLASS(oc);
@ -1229,9 +1291,9 @@ void qdev_machine_creation_done(void)
{
cpu_synchronize_all_post_init();
if (current_machine->boot_once) {
qemu_boot_set(current_machine->boot_once, &error_fatal);
qemu_register_reset(restore_boot_order, g_strdup(current_machine->boot_order));
if (current_machine->boot_config.has_once) {
qemu_boot_set(current_machine->boot_config.once, &error_fatal);
qemu_register_reset(restore_boot_order, g_strdup(current_machine->boot_config.order));
}
/*

6
hw/hppa/machine.c
View File

@ -147,7 +147,7 @@ static FWCfgState *create_fw_cfg(MachineState *ms)
fw_cfg_add_file(fw_cfg, "/etc/power-button-addr",
g_memdup(&val, sizeof(val)), sizeof(val));
fw_cfg_add_i16(fw_cfg, FW_CFG_BOOT_DEVICE, ms->boot_order[0]);
fw_cfg_add_i16(fw_cfg, FW_CFG_BOOT_DEVICE, ms->boot_config.order[0]);
qemu_register_boot_set(fw_cfg_boot_set, fw_cfg);
return fw_cfg;
@ -391,8 +391,8 @@ static void machine_hppa_init(MachineState *machine)
* mode (kernel_entry=1), and to boot from CD (gr[24]='d')
* or hard disc * (gr[24]='c').
*/
kernel_entry = boot_menu ? 1 : 0;
cpu[0]->env.gr[24] = machine->boot_order[0];
kernel_entry = machine->boot_config.has_menu ? machine->boot_config.menu : 0;
cpu[0]->env.gr[24] = machine->boot_config.order[0];
}
/* We jump to the firmware entry routine and pass the

2
hw/i386/pc.c
View File

@ -675,7 +675,7 @@ void pc_cmos_init(PCMachineState *pcms,
object_property_set_link(OBJECT(pcms), "rtc_state", OBJECT(s),
&error_abort);
set_boot_dev(s, MACHINE(pcms)->boot_order, &error_fatal);
set_boot_dev(s, MACHINE(pcms)->boot_config.order, &error_fatal);
val = 0;
val |= 0x02; /* FPU is there */

27
hw/nvram/fw_cfg.c
View File

@ -178,21 +178,13 @@ error:
static void fw_cfg_bootsplash(FWCfgState *s)
{
const char *boot_splash_filename = NULL;
const char *boot_splash_time = NULL;
char *filename, *file_data;
gsize file_size;
int file_type;
/* get user configuration */
QemuOptsList *plist = qemu_find_opts("boot-opts");
QemuOpts *opts = QTAILQ_FIRST(&plist->head);
boot_splash_filename = qemu_opt_get(opts, "splash");
boot_splash_time = qemu_opt_get(opts, "splash-time");
/* insert splash time if user configurated */
if (boot_splash_time) {
int64_t bst_val = qemu_opt_get_number(opts, "splash-time", -1);
if (current_machine->boot_config.has_splash_time) {
int64_t bst_val = current_machine->boot_config.splash_time;
uint16_t bst_le16;
/* validate the input */
@ -208,7 +200,8 @@ static void fw_cfg_bootsplash(FWCfgState *s)
}
/* insert splash file if user configurated */
if (boot_splash_filename) {
if (current_machine->boot_config.has_splash) {
const char *boot_splash_filename = current_machine->boot_config.splash;
filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, boot_splash_filename);
if (filename == NULL) {
error_report("failed to find file '%s'", boot_splash_filename);
@ -238,17 +231,11 @@ static void fw_cfg_bootsplash(FWCfgState *s)
static void fw_cfg_reboot(FWCfgState *s)
{
const char *reboot_timeout = NULL;
uint64_t rt_val = -1;
uint32_t rt_le32;
/* get user configuration */
QemuOptsList *plist = qemu_find_opts("boot-opts");
QemuOpts *opts = QTAILQ_FIRST(&plist->head);
reboot_timeout = qemu_opt_get(opts, "reboot-timeout");
if (reboot_timeout) {
rt_val = qemu_opt_get_number(opts, "reboot-timeout", -1);
if (current_machine->boot_config.has_reboot_timeout) {
rt_val = current_machine->boot_config.reboot_timeout;
/* validate the input */
if (rt_val > 0xffff && rt_val != (uint64_t)-1) {
@ -1133,7 +1120,7 @@ static void fw_cfg_common_realize(DeviceState *dev, Error **errp)
fw_cfg_add_bytes(s, FW_CFG_SIGNATURE, (char *)"QEMU", 4);
fw_cfg_add_bytes(s, FW_CFG_UUID, &qemu_uuid, 16);
fw_cfg_add_i16(s, FW_CFG_NOGRAPHIC, (uint16_t)!machine->enable_graphics);
fw_cfg_add_i16(s, FW_CFG_BOOT_MENU, (uint16_t)boot_menu);
fw_cfg_add_i16(s, FW_CFG_BOOT_MENU, (uint16_t)(machine->boot_config.has_menu && machine->boot_config.menu));
fw_cfg_bootsplash(s);
fw_cfg_reboot(s);

2
hw/ppc/mac_newworld.c
View File

@ -111,7 +111,7 @@ static void ppc_core99_init(MachineState *machine)
const char *kernel_filename = machine->kernel_filename;
const char *kernel_cmdline = machine->kernel_cmdline;
const char *initrd_filename = machine->initrd_filename;
const char *boot_device = machine->boot_order;
const char *boot_device = machine->boot_config.order;
Core99MachineState *core99_machine = CORE99_MACHINE(machine);
PowerPCCPU *cpu = NULL;
CPUPPCState *env = NULL;

2
hw/ppc/mac_oldworld.c
View File

@ -82,7 +82,7 @@ static void ppc_heathrow_init(MachineState *machine)
{
ram_addr_t ram_size = machine->ram_size;
const char *bios_name = machine->firmware ?: PROM_FILENAME;
const char *boot_device = machine->boot_order;
const char *boot_device = machine->boot_config.order;
PowerPCCPU *cpu = NULL;
CPUPPCState *env = NULL;
char *filename;

2
hw/ppc/prep.c
View File

@ -381,7 +381,7 @@ static void ibm_40p_init(MachineState *machine)
}
boot_device = 'm';
} else {
boot_device = machine->boot_order[0];
boot_device = machine->boot_config.order[0];
}
fw_cfg_add_i16(fw_cfg, FW_CFG_MAX_CPUS, (uint16_t)machine->smp.max_cpus);

4
hw/ppc/spapr.c
View File

@ -1044,8 +1044,8 @@ static void spapr_dt_chosen(SpaprMachineState *spapr, void *fdt, bool reset)
_FDT(fdt_setprop(fdt, chosen, "qemu,boot-kernel-le", NULL, 0));
}
}
if (boot_menu) {
_FDT((fdt_setprop_cell(fdt, chosen, "qemu,boot-menu", boot_menu)));
if (machine->boot_config.has_menu && machine->boot_config.menu) {
_FDT((fdt_setprop_cell(fdt, chosen, "qemu,boot-menu", true)));
}
_FDT(fdt_setprop_cell(fdt, chosen, "qemu,graphic-width", graphic_width));
_FDT(fdt_setprop_cell(fdt, chosen, "qemu,graphic-height", graphic_height));

20
hw/s390x/ipl.c
View File

@ -290,13 +290,10 @@ static Property s390_ipl_properties[] = {
static void s390_ipl_set_boot_menu(S390IPLState *ipl)
{
QemuOptsList *plist = qemu_find_opts("boot-opts");
QemuOpts *opts = QTAILQ_FIRST(&plist->head);
const char *tmp;
unsigned long splash_time = 0;
if (!get_boot_device(0)) {
if (boot_menu) {
if (current_machine->boot_config.has_menu && current_machine->boot_config.menu) {
error_report("boot menu requires a bootindex to be specified for "
"the IPL device");
}
@ -306,7 +303,7 @@ static void s390_ipl_set_boot_menu(S390IPLState *ipl)
switch (ipl->iplb.pbt) {
case S390_IPL_TYPE_CCW:
/* In the absence of -boot menu, use zipl parameters */
if (!qemu_opt_get(opts, "menu")) {
if (!current_machine->boot_config.has_menu) {
ipl->qipl.qipl_flags |= QIPL_FLAG_BM_OPTS_ZIPL;
return;
}
@ -314,26 +311,21 @@ static void s390_ipl_set_boot_menu(S390IPLState *ipl)
case S390_IPL_TYPE_QEMU_SCSI:
break;
default:
if (boot_menu) {
if (current_machine->boot_config.has_menu && current_machine->boot_config.menu) {
error_report("boot menu is not supported for this device type");
}
return;
}
if (!boot_menu) {
if (!current_machine->boot_config.has_menu || !current_machine->boot_config.menu) {
return;
}
ipl->qipl.qipl_flags |= QIPL_FLAG_BM_OPTS_CMD;
tmp = qemu_opt_get(opts, "splash-time");
if (tmp && qemu_strtoul(tmp, NULL, 10, &splash_time)) {
error_report("splash-time is invalid, forcing it to 0");
ipl->qipl.boot_menu_timeout = 0;
return;
if (current_machine->boot_config.has_splash_time) {
splash_time = current_machine->boot_config.splash_time;
}
if (splash_time > 0xffffffff) {
error_report("splash-time is too large, forcing it to max value");
ipl->qipl.boot_menu_timeout = 0xffffffff;

4
hw/sparc/sun4m.c
View File

@ -1050,7 +1050,7 @@ static void sun4m_hw_init(MachineState *machine)
machine->ram_size, &initrd_size);
nvram_init(nvram, (uint8_t *)&nd->macaddr, machine->kernel_cmdline,
machine->boot_order, machine->ram_size, kernel_size,
machine->boot_config.order, machine->ram_size, kernel_size,
graphic_width, graphic_height, graphic_depth,
hwdef->nvram_machine_id, "Sun4m");
@ -1091,7 +1091,7 @@ static void sun4m_hw_init(MachineState *machine)
}
fw_cfg_add_i32(fw_cfg, FW_CFG_INITRD_ADDR, INITRD_LOAD_ADDR);
fw_cfg_add_i32(fw_cfg, FW_CFG_INITRD_SIZE, initrd_size);
fw_cfg_add_i16(fw_cfg, FW_CFG_BOOT_DEVICE, machine->boot_order[0]);
fw_cfg_add_i16(fw_cfg, FW_CFG_BOOT_DEVICE, machine->boot_config.order[0]);
qemu_register_boot_set(fw_cfg_boot_set, fw_cfg);
}

4
hw/sparc64/sun4u.c
View File

@ -695,7 +695,7 @@ static void sun4uv_init(MemoryRegion *address_space_mem,
&kernel_addr, &kernel_entry);
sun4u_NVRAM_set_params(nvram, NVRAM_SIZE, "Sun4u", machine->ram_size,
machine->boot_order,
machine->boot_config.order,
kernel_addr, kernel_size,
machine->kernel_cmdline,
initrd_addr, initrd_size,
@ -727,7 +727,7 @@ static void sun4uv_init(MemoryRegion *address_space_mem,
}
fw_cfg_add_i64(fw_cfg, FW_CFG_INITRD_ADDR, initrd_addr);
fw_cfg_add_i64(fw_cfg, FW_CFG_INITRD_SIZE, initrd_size);
fw_cfg_add_i16(fw_cfg, FW_CFG_BOOT_DEVICE, machine->boot_order[0]);
fw_cfg_add_i16(fw_cfg, FW_CFG_BOOT_DEVICE, machine->boot_config.order[0]);
fw_cfg_add_i16(fw_cfg, FW_CFG_SPARC64_WIDTH, graphic_width);
fw_cfg_add_i16(fw_cfg, FW_CFG_SPARC64_HEIGHT, graphic_height);

4
include/hw/boards.h
View File

@ -26,6 +26,7 @@ OBJECT_DECLARE_TYPE(MachineState, MachineClass, MACHINE)
extern MachineState *current_machine;
void machine_run_board_init(MachineState *machine);
void machine_boot_parse(MachineState *ms, QemuOpts *opts, Error **errp);
bool machine_usb(MachineState *machine);
int machine_phandle_start(MachineState *machine);
bool machine_dump_guest_core(MachineState *machine);
@ -350,8 +351,7 @@ struct MachineState {
ram_addr_t ram_size;
ram_addr_t maxram_size;
uint64_t ram_slots;
const char *boot_order;
const char *boot_once;
BootConfiguration boot_config;
char *kernel_filename;
char *kernel_cmdline;
char *initrd_filename;

2
include/sysemu/sysemu.h
View File

@ -46,8 +46,6 @@ extern int alt_grab;
extern int ctrl_grab;
extern int graphic_rotate;
extern int old_param;
extern int boot_menu;
extern bool boot_strict;
extern uint8_t *boot_splash_filedata;
extern bool enable_mlock;
extern bool enable_cpu_pm;

30
qapi/machine.json
View File

@ -1395,6 +1395,36 @@
'data': { 'device': 'str', 'msg': 'str' },
'features': ['deprecated'] }
##
# @BootConfiguration:
#
# Schema for virtual machine boot configuration.
#
# @order: Boot order (a=floppy, c=hard disk, d=CD-ROM, n=network)
#
# @once: Boot order to apply on first boot
#
# @menu: Whether to show a boot menu
#
# @splash: The name of the file to be passed to the firmware as logo picture, if @menu is true.
#
# @splash-time: How long to show the logo picture, in milliseconds
#
# @reboot-timeout: Timeout before guest reboots after boot fails
#
# @strict: Whether to attempt booting from devices not included in the boot order
#
# Since: 7.1
##
{ 'struct': 'BootConfiguration', 'data': {
'*order': 'str',
'*once': 'str',
'*menu': 'bool',
'*splash': 'str',
'*splash-time': 'int',
'*reboot-timeout': 'int',
'*strict': 'bool' } }
##
# @SMPConfiguration:
#

3
softmmu/bootdevice.c
View File

@ -268,7 +268,8 @@ char *get_boot_devices_list(size_t *size)
*size = total;
if (boot_strict && *size > 0) {
if (current_machine->boot_config.has_strict &&
current_machine->boot_config.strict && *size > 0) {
list[total-1] = '\n';
list = g_realloc(list, total + 5);
memcpy(&list[total], "HALT", 5);

2
softmmu/globals.c
View File

@ -54,8 +54,6 @@ int alt_grab;
int ctrl_grab;
unsigned int nb_prom_envs;
const char *prom_envs[MAX_PROM_ENVS];
int boot_menu;
bool boot_strict;
uint8_t *boot_splash_filedata;
int only_migratable; /* turn it off unless user states otherwise */
int icount_align_option;

25
softmmu/vl.c
View File

@ -1884,9 +1884,6 @@ static bool object_create_early(const char *type)
static void qemu_apply_machine_options(QDict *qdict)
{
MachineClass *machine_class = MACHINE_GET_CLASS(current_machine);
const char *boot_order = NULL;
const char *boot_once = NULL;
QemuOpts *opts;
object_set_properties_from_keyval(OBJECT(current_machine), qdict, false, &error_fatal);
@ -1895,27 +1892,7 @@ static void qemu_apply_machine_options(QDict *qdict)
current_machine->ram_slots = ram_slots;
opts = qemu_opts_find(qemu_find_opts("boot-opts"), NULL);
if (opts) {
boot_order = qemu_opt_get(opts, "order");
if (boot_order) {
validate_bootdevices(boot_order, &error_fatal);
}
boot_once = qemu_opt_get(opts, "once");
if (boot_once) {
validate_bootdevices(boot_once, &error_fatal);
}
boot_menu = qemu_opt_get_bool(opts, "menu", boot_menu);
boot_strict = qemu_opt_get_bool(opts, "strict", false);
}
if (!boot_order) {
boot_order = machine_class->default_boot_order;
}
current_machine->boot_order = boot_order;
current_machine->boot_once = boot_once;
machine_boot_parse(current_machine, opts, &error_fatal);
if (semihosting_enabled() && !semihosting_get_argc()) {
/* fall back to the -kernel/-append */