diff options
Diffstat (limited to 'hw/arm/virt.c')
| -rw-r--r-- | hw/arm/virt.c | 66 |
1 files changed, 59 insertions, 7 deletions
diff --git a/hw/arm/virt.c b/hw/arm/virt.c index bbd061b9b6..60736c2062 100644 --- a/hw/arm/virt.c +++ b/hw/arm/virt.c @@ -80,6 +80,7 @@ typedef struct { typedef struct { MachineState parent; bool secure; + bool highmem; } VirtMachineState; #define TYPE_VIRT_MACHINE "virt" @@ -120,6 +121,8 @@ static const MemMapEntry a15memmap[] = { [VIRT_PCIE_PIO] = { 0x3eff0000, 0x00010000 }, [VIRT_PCIE_ECAM] = { 0x3f000000, 0x01000000 }, [VIRT_MEM] = { 0x40000000, 30ULL * 1024 * 1024 * 1024 }, + /* Second PCIe window, 512GB wide at the 512GB boundary */ + [VIRT_PCIE_MMIO_HIGH] = { 0x8000000000ULL, 0x8000000000ULL }, }; static const int a15irqmap[] = { @@ -667,10 +670,13 @@ static void create_pcie_irq_map(const VirtBoardInfo *vbi, uint32_t gic_phandle, 0x7 /* PCI irq */); } -static void create_pcie(const VirtBoardInfo *vbi, qemu_irq *pic) +static void create_pcie(const VirtBoardInfo *vbi, qemu_irq *pic, + bool use_highmem) { hwaddr base_mmio = vbi->memmap[VIRT_PCIE_MMIO].base; hwaddr size_mmio = vbi->memmap[VIRT_PCIE_MMIO].size; + hwaddr base_mmio_high = vbi->memmap[VIRT_PCIE_MMIO_HIGH].base; + hwaddr size_mmio_high = vbi->memmap[VIRT_PCIE_MMIO_HIGH].size; hwaddr base_pio = vbi->memmap[VIRT_PCIE_PIO].base; hwaddr size_pio = vbi->memmap[VIRT_PCIE_PIO].size; hwaddr base_ecam = vbi->memmap[VIRT_PCIE_ECAM].base; @@ -707,6 +713,16 @@ static void create_pcie(const VirtBoardInfo *vbi, qemu_irq *pic) mmio_reg, base_mmio, size_mmio); memory_region_add_subregion(get_system_memory(), base_mmio, mmio_alias); + if (use_highmem) { + /* Map high MMIO space */ + MemoryRegion *high_mmio_alias = g_new0(MemoryRegion, 1); + + memory_region_init_alias(high_mmio_alias, OBJECT(dev), "pcie-mmio-high", + mmio_reg, base_mmio_high, size_mmio_high); + memory_region_add_subregion(get_system_memory(), base_mmio_high, + high_mmio_alias); + } + /* Map IO port space */ sysbus_mmio_map(SYS_BUS_DEVICE(dev), 2, base_pio); @@ -728,11 +744,23 @@ static void create_pcie(const VirtBoardInfo *vbi, qemu_irq *pic) qemu_fdt_setprop_sized_cells(vbi->fdt, nodename, "reg", 2, base_ecam, 2, size_ecam); - qemu_fdt_setprop_sized_cells(vbi->fdt, nodename, "ranges", - 1, FDT_PCI_RANGE_IOPORT, 2, 0, - 2, base_pio, 2, size_pio, - 1, FDT_PCI_RANGE_MMIO, 2, base_mmio, - 2, base_mmio, 2, size_mmio); + + if (use_highmem) { + qemu_fdt_setprop_sized_cells(vbi->fdt, nodename, "ranges", + 1, FDT_PCI_RANGE_IOPORT, 2, 0, + 2, base_pio, 2, size_pio, + 1, FDT_PCI_RANGE_MMIO, 2, base_mmio, + 2, base_mmio, 2, size_mmio, + 1, FDT_PCI_RANGE_MMIO_64BIT, + 2, base_mmio_high, + 2, base_mmio_high, 2, size_mmio_high); + } else { + qemu_fdt_setprop_sized_cells(vbi->fdt, nodename, "ranges", + 1, FDT_PCI_RANGE_IOPORT, 2, 0, + 2, base_pio, 2, size_pio, + 1, FDT_PCI_RANGE_MMIO, 2, base_mmio, + 2, base_mmio, 2, size_mmio); + } qemu_fdt_setprop_cell(vbi->fdt, nodename, "#interrupt-cells", 1); create_pcie_irq_map(vbi, vbi->gic_phandle, irq, nodename); @@ -915,7 +943,7 @@ static void machvirt_init(MachineState *machine) create_rtc(vbi, pic); - create_pcie(vbi, pic); + create_pcie(vbi, pic, vms->highmem); /* Create mmio transports, so the user can create virtio backends * (which will be automatically plugged in to the transports). If @@ -930,6 +958,7 @@ static void machvirt_init(MachineState *machine) guest_info->fw_cfg = fw_cfg_find(); guest_info->memmap = vbi->memmap; guest_info->irqmap = vbi->irqmap; + guest_info->use_highmem = vms->highmem; guest_info_state->machine_done.notify = virt_guest_info_machine_done; qemu_add_machine_init_done_notifier(&guest_info_state->machine_done); @@ -967,6 +996,20 @@ static void virt_set_secure(Object *obj, bool value, Error **errp) vms->secure = value; } +static bool virt_get_highmem(Object *obj, Error **errp) +{ + VirtMachineState *vms = VIRT_MACHINE(obj); + + return vms->highmem; +} + +static void virt_set_highmem(Object *obj, bool value, Error **errp) +{ + VirtMachineState *vms = VIRT_MACHINE(obj); + + vms->highmem = value; +} + static void virt_instance_init(Object *obj) { VirtMachineState *vms = VIRT_MACHINE(obj); @@ -979,6 +1022,15 @@ static void virt_instance_init(Object *obj) "Set on/off to enable/disable the ARM " "Security Extensions (TrustZone)", NULL); + + /* High memory is enabled by default */ + vms->highmem = true; + object_property_add_bool(obj, "highmem", virt_get_highmem, + virt_set_highmem, NULL); + object_property_set_description(obj, "highmem", + "Set on/off to enable/disable using " + "physical address space above 32 bits", + NULL); } static void virt_class_init(ObjectClass *oc, void *data) |