diff options
Diffstat (limited to 'hw/loongarch/virt.c')
| -rw-r--r-- | hw/loongarch/virt.c | 110 |
1 files changed, 109 insertions, 1 deletions
diff --git a/hw/loongarch/virt.c b/hw/loongarch/virt.c index bd5cff1f1e..c1760423ee 100644 --- a/hw/loongarch/virt.c +++ b/hw/loongarch/virt.c @@ -28,6 +28,7 @@ #include "hw/intc/loongarch_extioi.h" #include "hw/intc/loongarch_pch_pic.h" #include "hw/intc/loongarch_pch_msi.h" +#include "hw/intc/loongarch_dintc.h" #include "hw/pci-host/ls7a.h" #include "hw/pci-host/gpex.h" #include "hw/misc/unimp.h" @@ -48,6 +49,30 @@ #include "qemu/error-report.h" #include "kvm/kvm_loongarch.h" +static void virt_get_dmsi(Object *obj, Visitor *v, const char *name, + void *opaque, Error **errp) +{ + LoongArchVirtMachineState *lvms = LOONGARCH_VIRT_MACHINE(obj); + OnOffAuto dmsi = lvms->dmsi; + + visit_type_OnOffAuto(v, name, &dmsi, errp); + +} +static void virt_set_dmsi(Object *obj, Visitor *v, const char *name, + void *opaque, Error **errp) +{ + LoongArchVirtMachineState *lvms = LOONGARCH_VIRT_MACHINE(obj); + + visit_type_OnOffAuto(v, name, &lvms->dmsi, errp); + + if (lvms->dmsi == ON_OFF_AUTO_OFF) { + lvms->misc_feature &= ~BIT(IOCSRF_DMSI); + lvms->misc_status &= ~BIT_ULL(IOCSRM_DMSI_EN); + } else if (lvms->dmsi == ON_OFF_AUTO_ON) { + lvms->misc_feature = BIT(IOCSRF_DMSI); + } +} + static void virt_get_veiointc(Object *obj, Visitor *v, const char *name, void *opaque, Error **errp) { @@ -356,13 +381,17 @@ static void virt_cpu_irq_init(LoongArchVirtMachineState *lvms) &error_abort); hotplug_handler_plug(HOTPLUG_HANDLER(lvms->extioi), DEVICE(cs), &error_abort); + if (lvms->dintc) { + hotplug_handler_plug(HOTPLUG_HANDLER(lvms->dintc), DEVICE(cs), + &error_abort); + } } } static void virt_irq_init(LoongArchVirtMachineState *lvms) { DeviceState *pch_pic, *pch_msi; - DeviceState *ipi, *extioi; + DeviceState *ipi, *extioi, *dintc; SysBusDevice *d; int i, start, num; @@ -408,6 +437,33 @@ static void virt_irq_init(LoongArchVirtMachineState *lvms) * +--------+ +---------+ +---------+ * | UARTs | | Devices | | Devices | * +--------+ +---------+ +---------+ + * + * + * Advanced Extended IRQ model + * + * +-----+ +---------------------------------+ +-------+ + * | IPI | --> | CPUINTC | <-- | Timer | + * +-----+ +---------------------------------+ +-------+ + * ^ ^ ^ + * | | | + * +-------------+ +----------+ +---------+ +-------+ + * | EIOINTC | | DINTC | | LIOINTC | <-- | UARTs | + * +-------------+ +----------+ +---------+ +-------+ + * ^ ^ ^ + * | | | + * +---------+ +---------+ | + * | PCH-PIC | | PCH-MSI | | + * +---------+ +---------+ | + * ^ ^ ^ | + * | | | | + * +---------+ +---------+ +---------+ + * | Devices | | PCH-LPC | | Devices | + * +---------+ +---------+ +---------+ + * ^ + * | + * +---------+ + * | Devices | + * +---------+ */ /* Create IPI device */ @@ -415,6 +471,14 @@ static void virt_irq_init(LoongArchVirtMachineState *lvms) lvms->ipi = ipi; sysbus_realize_and_unref(SYS_BUS_DEVICE(ipi), &error_fatal); + /* Create DINTC device*/ + if (virt_has_dmsi(lvms)) { + dintc = qdev_new(TYPE_LOONGARCH_DINTC); + lvms->dintc = dintc; + sysbus_realize_and_unref(SYS_BUS_DEVICE(dintc), &error_fatal); + sysbus_mmio_map(SYS_BUS_DEVICE(dintc), 0, VIRT_DINTC_BASE); + } + /* Create EXTIOI device */ extioi = qdev_new(TYPE_LOONGARCH_EXTIOI); lvms->extioi = extioi; @@ -540,6 +604,10 @@ static MemTxResult virt_iocsr_misc_write(void *opaque, hwaddr addr, return MEMTX_OK; } + if (virt_has_dmsi(lvms) && val & BIT_ULL(IOCSRM_DMSI_EN)) { + lvms->misc_status |= BIT_ULL(IOCSRM_DMSI_EN); + } + features = address_space_ldl(&lvms->as_iocsr, EXTIOI_VIRT_BASE + EXTIOI_VIRT_CONFIG, attrs, NULL); @@ -575,6 +643,9 @@ static MemTxResult virt_iocsr_misc_read(void *opaque, hwaddr addr, break; case FEATURE_REG: ret = BIT(IOCSRF_MSI) | BIT(IOCSRF_EXTIOI) | BIT(IOCSRF_CSRIPI); + if (virt_has_dmsi(lvms)) { + ret |= BIT(IOCSRF_DMSI); + } if (kvm_enabled()) { ret |= BIT(IOCSRF_VM); } @@ -604,6 +675,10 @@ static MemTxResult virt_iocsr_misc_read(void *opaque, hwaddr addr, if (features & BIT(EXTIOI_ENABLE_INT_ENCODE)) { ret |= BIT_ULL(IOCSRM_EXTIOI_INT_ENCODE); } + if (virt_has_dmsi(lvms) && + (lvms->misc_status & BIT_ULL(IOCSRM_DMSI_EN))) { + ret |= BIT_ULL(IOCSRM_DMSI_EN); + } break; default: g_assert_not_reached(); @@ -683,6 +758,25 @@ static void fw_cfg_add_memory(MachineState *ms) } } +static void virt_check_dmsi(MachineState *machine) +{ + LoongArchCPU *cpu; + LoongArchVirtMachineState *lvms = LOONGARCH_VIRT_MACHINE(machine); + + cpu = LOONGARCH_CPU(first_cpu); + if (lvms->dmsi == ON_OFF_AUTO_AUTO) { + if (cpu->msgint != ON_OFF_AUTO_OFF) { + lvms->misc_feature = BIT(IOCSRF_DMSI); + } + } + + if (lvms->dmsi == ON_OFF_AUTO_ON && cpu->msgint == ON_OFF_AUTO_OFF) { + error_report("Fail to enable dmsi , cpu msgint is off " + "pleass add cpu feature mesgint=on."); + exit(EXIT_FAILURE); + } +} + static void virt_init(MachineState *machine) { const char *cpu_model = machine->cpu_type; @@ -717,6 +811,7 @@ static void virt_init(MachineState *machine) } qdev_realize_and_unref(DEVICE(cpuobj), NULL, &error_fatal); } + virt_check_dmsi(machine); fw_cfg_add_memory(machine); /* Node0 memory */ @@ -847,6 +942,8 @@ static void virt_initfn(Object *obj) if (tcg_enabled()) { lvms->veiointc = ON_OFF_AUTO_OFF; } + + lvms->dmsi = ON_OFF_AUTO_AUTO; lvms->acpi = ON_OFF_AUTO_AUTO; lvms->oem_id = g_strndup(ACPI_BUILD_APPNAME6, 6); lvms->oem_table_id = g_strndup(ACPI_BUILD_APPNAME8, 8); @@ -1010,6 +1107,9 @@ static void virt_cpu_unplug(HotplugHandler *hotplug_dev, /* Notify ipi and extioi irqchip to remove interrupt routing to CPU */ hotplug_handler_unplug(HOTPLUG_HANDLER(lvms->ipi), dev, &error_abort); hotplug_handler_unplug(HOTPLUG_HANDLER(lvms->extioi), dev, &error_abort); + if (lvms->dintc) { + hotplug_handler_unplug(HOTPLUG_HANDLER(lvms->dintc), dev, &error_abort); + } /* Notify acpi ged CPU removed */ hotplug_handler_unplug(HOTPLUG_HANDLER(lvms->acpi_ged), dev, &error_abort); @@ -1034,6 +1134,10 @@ static void virt_cpu_plug(HotplugHandler *hotplug_dev, hotplug_handler_plug(HOTPLUG_HANDLER(lvms->extioi), dev, &error_abort); } + if (lvms->dintc) { + hotplug_handler_plug(HOTPLUG_HANDLER(lvms->dintc), dev, &error_abort); + } + if (lvms->acpi_ged) { hotplug_handler_plug(HOTPLUG_HANDLER(lvms->acpi_ged), dev, &error_abort); @@ -1241,6 +1345,10 @@ static void virt_class_init(ObjectClass *oc, const void *data) NULL, NULL); object_class_property_set_description(oc, "v-eiointc", "Enable Virt Extend I/O Interrupt Controller."); + object_class_property_add(oc, "dmsi", "OnOffAuto", + virt_get_dmsi, virt_set_dmsi, NULL, NULL); + object_class_property_set_description(oc, "dmsi", + "Enable direct Message-interrupts Controller."); machine_class_allow_dynamic_sysbus_dev(mc, TYPE_RAMFB_DEVICE); machine_class_allow_dynamic_sysbus_dev(mc, TYPE_UEFI_VARS_SYSBUS); #ifdef CONFIG_TPM |