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hw/i386/pc: Populate RTC attribute directly

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Both the piix and the q35 machines introduce an rtc_state variable and defer the
initialization of the X86MachineState::rtc attribute to pc_cmos_init(). Resolve
this complication which makes pc_cmos_init() do what it says on the tin.

Signed-off-by: Bernhard Beschow <shentey@gmail.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Zhao Liu <zhao1.liu@intel.com>
Message-ID: <20240224135851.100361-6-shentey@gmail.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
This commit is contained in:
Bernhard Beschow 2024-02-24 14:58:50 +01:00 committed by Philippe Mathieu-Daudé
parent 929cfe9885
commit 99e1c1137b
3 changed files with 10 additions and 20 deletions
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8
hw/i386/pc.c
View file

@ -611,14 +611,6 @@ void pc_cmos_init(PCMachineState *pcms,
mc146818rtc_set_cmos_data(s, 0x5c, val >> 8);
mc146818rtc_set_cmos_data(s, 0x5d, val >> 16);
object_property_add_link(OBJECT(pcms), "rtc_state",
TYPE_ISA_DEVICE,
(Object **)&x86ms->rtc,
object_property_allow_set_link,
OBJ_PROP_LINK_STRONG);
object_property_set_link(OBJECT(pcms), "rtc_state", OBJECT(s),
&error_abort);
set_boot_dev(s, MACHINE(pcms)->boot_config.order, &error_fatal);
val = 0;

15
hw/i386/pc_piix.c
View file

@ -112,7 +112,6 @@ static void pc_init1(MachineState *machine,
Object *piix4_pm = NULL;
qemu_irq smi_irq;
GSIState *gsi_state;
ISADevice *rtc_state;
MemoryRegion *ram_memory;
MemoryRegion *pci_memory = NULL;
MemoryRegion *rom_memory = system_memory;
@ -276,8 +275,8 @@ static void pc_init1(MachineState *machine,
}
isa_bus = ISA_BUS(qdev_get_child_bus(DEVICE(pci_dev), "isa.0"));
rtc_state = ISA_DEVICE(object_resolve_path_component(OBJECT(pci_dev),
"rtc"));
x86ms->rtc = ISA_DEVICE(object_resolve_path_component(OBJECT(pci_dev),
"rtc"));
piix4_pm = object_resolve_path_component(OBJECT(pci_dev), "pm");
dev = DEVICE(object_resolve_path_component(OBJECT(pci_dev), "ide"));
pci_ide_create_devs(PCI_DEVICE(dev));
@ -288,9 +287,9 @@ static void pc_init1(MachineState *machine,
&error_abort);
isa_bus_register_input_irqs(isa_bus, x86ms->gsi);
rtc_state = isa_new(TYPE_MC146818_RTC);
qdev_prop_set_int32(DEVICE(rtc_state), "base_year", 2000);
isa_realize_and_unref(rtc_state, isa_bus, &error_fatal);
x86ms->rtc = isa_new(TYPE_MC146818_RTC);
qdev_prop_set_int32(DEVICE(x86ms->rtc), "base_year", 2000);
isa_realize_and_unref(x86ms->rtc, isa_bus, &error_fatal);
i8257_dma_init(OBJECT(machine), isa_bus, 0);
pcms->hpet_enabled = false;
@ -316,7 +315,7 @@ static void pc_init1(MachineState *machine,
}
/* init basic PC hardware */
pc_basic_device_init(pcms, isa_bus, x86ms->gsi, rtc_state, true,
pc_basic_device_init(pcms, isa_bus, x86ms->gsi, x86ms->rtc, true,
0x4);
pc_nic_init(pcmc, isa_bus, pcms->pcibus);
@ -343,7 +342,7 @@ static void pc_init1(MachineState *machine,
}
#endif
pc_cmos_init(pcms, rtc_state);
pc_cmos_init(pcms, x86ms->rtc);
if (piix4_pm) {
smi_irq = qemu_allocate_irq(pc_acpi_smi_interrupt, first_cpu, 0);

7
hw/i386/pc_q35.c
View file

@ -125,7 +125,6 @@ static void pc_q35_init(MachineState *machine)
Object *phb;
PCIDevice *lpc;
DeviceState *lpc_dev;
ISADevice *rtc_state;
MemoryRegion *system_memory = get_system_memory();
MemoryRegion *system_io = get_system_io();
MemoryRegion *pci_memory = g_new(MemoryRegion, 1);
@ -232,7 +231,7 @@ static void pc_q35_init(MachineState *machine)
}
pci_realize_and_unref(lpc, pcms->pcibus, &error_fatal);
rtc_state = ISA_DEVICE(object_resolve_path_component(OBJECT(lpc), "rtc"));
x86ms->rtc = ISA_DEVICE(object_resolve_path_component(OBJECT(lpc), "rtc"));
object_property_add_link(OBJECT(machine), PC_MACHINE_ACPI_DEVICE_PROP,
TYPE_HOTPLUG_HANDLER,
@ -274,7 +273,7 @@ static void pc_q35_init(MachineState *machine)
}
/* init basic PC hardware */
pc_basic_device_init(pcms, isa_bus, x86ms->gsi, rtc_state, !mc->no_floppy,
pc_basic_device_init(pcms, isa_bus, x86ms->gsi, x86ms->rtc, !mc->no_floppy,
0xff0104);
if (pcms->sata_enabled) {
@ -312,7 +311,7 @@ static void pc_q35_init(MachineState *machine)
smbus_eeprom_init(pcms->smbus, 8, NULL, 0);
}
pc_cmos_init(pcms, rtc_state);
pc_cmos_init(pcms, x86ms->rtc);
/* the rest devices to which pci devfn is automatically assigned */
pc_vga_init(isa_bus, pcms->pcibus);