diff options
Diffstat (limited to 'hw/riscv/virt.c')
| -rw-r--r-- | hw/riscv/virt.c | 104 |
1 files changed, 102 insertions, 2 deletions
diff --git a/hw/riscv/virt.c b/hw/riscv/virt.c index 2feb851f15..c5ada635f1 100644 --- a/hw/riscv/virt.c +++ b/hw/riscv/virt.c @@ -33,6 +33,7 @@ #include "target/riscv/pmu.h" #include "hw/riscv/riscv_hart.h" #include "hw/riscv/iommu.h" +#include "hw/riscv/riscv-iommu-bits.h" #include "hw/riscv/virt.h" #include "hw/riscv/boot.h" #include "hw/riscv/numa.h" @@ -76,6 +77,7 @@ static const MemMapEntry virt_memmap[] = { [VIRT_CLINT] = { 0x2000000, 0x10000 }, [VIRT_ACLINT_SSWI] = { 0x2F00000, 0x4000 }, [VIRT_PCIE_PIO] = { 0x3000000, 0x10000 }, + [VIRT_IOMMU_SYS] = { 0x3010000, 0x1000 }, [VIRT_PLATFORM_BUS] = { 0x4000000, 0x2000000 }, [VIRT_PLIC] = { 0xc000000, VIRT_PLIC_SIZE(VIRT_CPUS_MAX * 2) }, [VIRT_APLIC_M] = { 0xc000000, APLIC_SIZE(VIRT_CPUS_MAX) }, @@ -853,7 +855,8 @@ static void create_fdt_virtio(RISCVVirtState *s, const MemMapEntry *memmap, static void create_fdt_pcie(RISCVVirtState *s, const MemMapEntry *memmap, uint32_t irq_pcie_phandle, - uint32_t msi_pcie_phandle) + uint32_t msi_pcie_phandle, + uint32_t iommu_sys_phandle) { g_autofree char *name = NULL; MachineState *ms = MACHINE(s); @@ -887,6 +890,12 @@ static void create_fdt_pcie(RISCVVirtState *s, const MemMapEntry *memmap, 2, virt_high_pcie_memmap.base, 2, virt_high_pcie_memmap.base, 2, virt_high_pcie_memmap.size); + if (virt_is_iommu_sys_enabled(s)) { + qemu_fdt_setprop_cells(ms->fdt, name, "iommu-map", + 0, iommu_sys_phandle, 0, 0, 0, + iommu_sys_phandle, 0, 0xffff); + } + create_pcie_irq_map(s, ms->fdt, name, irq_pcie_phandle); } @@ -1033,6 +1042,44 @@ static void create_fdt_virtio_iommu(RISCVVirtState *s, uint16_t bdf) bdf + 1, iommu_phandle, bdf + 1, 0xffff - bdf); } +static void create_fdt_iommu_sys(RISCVVirtState *s, uint32_t irq_chip, + uint32_t *iommu_sys_phandle) +{ + const char comp[] = "riscv,iommu"; + void *fdt = MACHINE(s)->fdt; + uint32_t iommu_phandle; + g_autofree char *iommu_node = NULL; + hwaddr addr = s->memmap[VIRT_IOMMU_SYS].base; + hwaddr size = s->memmap[VIRT_IOMMU_SYS].size; + uint32_t iommu_irq_map[RISCV_IOMMU_INTR_COUNT] = { + IOMMU_SYS_IRQ + RISCV_IOMMU_INTR_CQ, + IOMMU_SYS_IRQ + RISCV_IOMMU_INTR_FQ, + IOMMU_SYS_IRQ + RISCV_IOMMU_INTR_PM, + IOMMU_SYS_IRQ + RISCV_IOMMU_INTR_PQ, + }; + + iommu_node = g_strdup_printf("/soc/iommu@%x", + (unsigned int) s->memmap[VIRT_IOMMU_SYS].base); + iommu_phandle = qemu_fdt_alloc_phandle(fdt); + qemu_fdt_add_subnode(fdt, iommu_node); + + qemu_fdt_setprop(fdt, iommu_node, "compatible", comp, sizeof(comp)); + qemu_fdt_setprop_cell(fdt, iommu_node, "#iommu-cells", 1); + qemu_fdt_setprop_cell(fdt, iommu_node, "phandle", iommu_phandle); + + qemu_fdt_setprop_cells(fdt, iommu_node, "reg", + addr >> 32, addr, size >> 32, size); + qemu_fdt_setprop_cell(fdt, iommu_node, "interrupt-parent", irq_chip); + + qemu_fdt_setprop_cells(fdt, iommu_node, "interrupts", + iommu_irq_map[0], FDT_IRQ_TYPE_EDGE_LOW, + iommu_irq_map[1], FDT_IRQ_TYPE_EDGE_LOW, + iommu_irq_map[2], FDT_IRQ_TYPE_EDGE_LOW, + iommu_irq_map[3], FDT_IRQ_TYPE_EDGE_LOW); + + *iommu_sys_phandle = iommu_phandle; +} + static void create_fdt_iommu(RISCVVirtState *s, uint16_t bdf) { const char comp[] = "riscv,pci-iommu"; @@ -1061,6 +1108,7 @@ static void finalize_fdt(RISCVVirtState *s) { uint32_t phandle = 1, irq_mmio_phandle = 1, msi_pcie_phandle = 1; uint32_t irq_pcie_phandle = 1, irq_virtio_phandle = 1; + uint32_t iommu_sys_phandle = 1; create_fdt_sockets(s, virt_memmap, &phandle, &irq_mmio_phandle, &irq_pcie_phandle, &irq_virtio_phandle, @@ -1068,7 +1116,11 @@ static void finalize_fdt(RISCVVirtState *s) create_fdt_virtio(s, virt_memmap, irq_virtio_phandle); - create_fdt_pcie(s, virt_memmap, irq_pcie_phandle, msi_pcie_phandle); + if (virt_is_iommu_sys_enabled(s)) { + create_fdt_iommu_sys(s, irq_mmio_phandle, &iommu_sys_phandle); + } + create_fdt_pcie(s, virt_memmap, irq_pcie_phandle, msi_pcie_phandle, + iommu_sys_phandle); create_fdt_reset(s, virt_memmap, &phandle); @@ -1648,6 +1700,22 @@ static void virt_machine_init(MachineState *machine) create_fdt(s, memmap); } + if (virt_is_iommu_sys_enabled(s)) { + DeviceState *iommu_sys = qdev_new(TYPE_RISCV_IOMMU_SYS); + + object_property_set_uint(OBJECT(iommu_sys), "addr", + s->memmap[VIRT_IOMMU_SYS].base, + &error_fatal); + object_property_set_uint(OBJECT(iommu_sys), "base-irq", + IOMMU_SYS_IRQ, + &error_fatal); + object_property_set_link(OBJECT(iommu_sys), "irqchip", + OBJECT(mmio_irqchip), + &error_fatal); + + sysbus_realize_and_unref(SYS_BUS_DEVICE(iommu_sys), &error_fatal); + } + s->machine_done.notify = virt_machine_done; qemu_add_machine_init_done_notifier(&s->machine_done); } @@ -1661,6 +1729,7 @@ static void virt_machine_instance_init(Object *obj) s->oem_id = g_strndup(ACPI_BUILD_APPNAME6, 6); s->oem_table_id = g_strndup(ACPI_BUILD_APPNAME8, 8); s->acpi = ON_OFF_AUTO_AUTO; + s->iommu_sys = ON_OFF_AUTO_AUTO; } static char *virt_get_aia_guests(Object *obj, Error **errp) @@ -1733,6 +1802,28 @@ static void virt_set_aclint(Object *obj, bool value, Error **errp) s->have_aclint = value; } +bool virt_is_iommu_sys_enabled(RISCVVirtState *s) +{ + return s->iommu_sys == ON_OFF_AUTO_ON; +} + +static void virt_get_iommu_sys(Object *obj, Visitor *v, const char *name, + void *opaque, Error **errp) +{ + RISCVVirtState *s = RISCV_VIRT_MACHINE(obj); + OnOffAuto iommu_sys = s->iommu_sys; + + visit_type_OnOffAuto(v, name, &iommu_sys, errp); +} + +static void virt_set_iommu_sys(Object *obj, Visitor *v, const char *name, + void *opaque, Error **errp) +{ + RISCVVirtState *s = RISCV_VIRT_MACHINE(obj); + + visit_type_OnOffAuto(v, name, &s->iommu_sys, errp); +} + bool virt_is_acpi_enabled(RISCVVirtState *s) { return s->acpi != ON_OFF_AUTO_OFF; @@ -1759,10 +1850,12 @@ static HotplugHandler *virt_machine_get_hotplug_handler(MachineState *machine, DeviceState *dev) { MachineClass *mc = MACHINE_GET_CLASS(machine); + RISCVVirtState *s = RISCV_VIRT_MACHINE(machine); if (device_is_dynamic_sysbus(mc, dev) || object_dynamic_cast(OBJECT(dev), TYPE_VIRTIO_IOMMU_PCI) || object_dynamic_cast(OBJECT(dev), TYPE_RISCV_IOMMU_PCI)) { + s->iommu_sys = ON_OFF_AUTO_OFF; return HOTPLUG_HANDLER(machine); } @@ -1789,6 +1882,7 @@ static void virt_machine_device_plug_cb(HotplugHandler *hotplug_dev, if (object_dynamic_cast(OBJECT(dev), TYPE_RISCV_IOMMU_PCI)) { create_fdt_iommu(s, pci_get_bdf(PCI_DEVICE(dev))); + s->iommu_sys = ON_OFF_AUTO_OFF; } } @@ -1851,6 +1945,12 @@ static void virt_machine_class_init(ObjectClass *oc, void *data) NULL, NULL); object_class_property_set_description(oc, "acpi", "Enable ACPI"); + + object_class_property_add(oc, "iommu-sys", "OnOffAuto", + virt_get_iommu_sys, virt_set_iommu_sys, + NULL, NULL); + object_class_property_set_description(oc, "iommu-sys", + "Enable IOMMU platform device"); } static const TypeInfo virt_machine_typeinfo = { |