#include "hw/arm/primecell.h"
#include "hw/devices.h"
#include "net/net.h"
+#include "sysemu/block-backend.h"
#include "sysemu/device_tree.h"
#include "sysemu/sysemu.h"
#include "sysemu/kvm.h"
#include "hw/boards.h"
+#include "hw/loader.h"
#include "exec/address-spaces.h"
#include "qemu/bitops.h"
#include "qemu/error-report.h"
VIRT_GIC_CPU,
VIRT_UART,
VIRT_MMIO,
+ VIRT_RTC,
};
typedef struct MemMapEntry {
typedef struct VirtBoardInfo {
struct arm_boot_info bootinfo;
const char *cpu_model;
- const char *qdevname;
- const char *gic_compatible;
const MemMapEntry *memmap;
const int *irqmap;
int smp_cpus;
* high memory region beyond 4GB).
* This represents a compromise between how much RAM can be given to
* a 32 bit VM and leaving space for expansion and in particular for PCI.
+ * Note that devices should generally be placed at multiples of 0x10000,
+ * to accommodate guests using 64K pages.
*/
static const MemMapEntry a15memmap[] = {
/* Space up to 0x8000000 is reserved for a boot ROM */
- [VIRT_FLASH] = { 0, 0x8000000 },
- [VIRT_CPUPERIPHS] = { 0x8000000, 0x8000 },
+ [VIRT_FLASH] = { 0, 0x08000000 },
+ [VIRT_CPUPERIPHS] = { 0x08000000, 0x00020000 },
/* GIC distributor and CPU interfaces sit inside the CPU peripheral space */
- [VIRT_GIC_DIST] = { 0x8001000, 0x1000 },
- [VIRT_GIC_CPU] = { 0x8002000, 0x1000 },
- [VIRT_UART] = { 0x9000000, 0x1000 },
- [VIRT_MMIO] = { 0xa000000, 0x200 },
+ [VIRT_GIC_DIST] = { 0x08000000, 0x00010000 },
+ [VIRT_GIC_CPU] = { 0x08010000, 0x00010000 },
+ [VIRT_UART] = { 0x09000000, 0x00001000 },
+ [VIRT_RTC] = { 0x09010000, 0x00001000 },
+ [VIRT_MMIO] = { 0x0a000000, 0x00000200 },
/* ...repeating for a total of NUM_VIRTIO_TRANSPORTS, each of that size */
/* 0x10000000 .. 0x40000000 reserved for PCI */
- [VIRT_MEM] = { 0x40000000, 30ULL * 1024 * 1024 * 1024 },
+ [VIRT_MEM] = { 0x40000000, 30ULL * 1024 * 1024 * 1024 },
};
static const int a15irqmap[] = {
[VIRT_UART] = 1,
+ [VIRT_RTC] = 2,
[VIRT_MMIO] = 16, /* ...to 16 + NUM_VIRTIO_TRANSPORTS - 1 */
};
static VirtBoardInfo machines[] = {
{
.cpu_model = "cortex-a15",
- .qdevname = "a15mpcore_priv",
- .gic_compatible = "arm,cortex-a15-gic",
+ .memmap = a15memmap,
+ .irqmap = a15irqmap,
+ },
+ {
+ .cpu_model = "cortex-a57",
.memmap = a15memmap,
.irqmap = a15irqmap,
},
{
.cpu_model = "host",
- /* We use the A15 private peripheral model to get a V2 GIC */
- .qdevname = "a15mpcore_priv",
- .gic_compatible = "arm,cortex-a15-gic",
.memmap = a15memmap,
.irqmap = a15irqmap,
},
"clk24mhz");
qemu_fdt_setprop_cell(fdt, "/apb-pclk", "phandle", vbi->clock_phandle);
+}
+
+static void fdt_add_psci_node(const VirtBoardInfo *vbi)
+{
+ void *fdt = vbi->fdt;
+ ARMCPU *armcpu = ARM_CPU(qemu_get_cpu(0));
+
/* No PSCI for TCG yet */
if (kvm_enabled()) {
+ uint32_t cpu_suspend_fn;
+ uint32_t cpu_off_fn;
+ uint32_t cpu_on_fn;
+ uint32_t migrate_fn;
+
qemu_fdt_add_subnode(fdt, "/psci");
- qemu_fdt_setprop_string(fdt, "/psci", "compatible", "arm,psci");
+ if (armcpu->psci_version == 2) {
+ const char comp[] = "arm,psci-0.2\0arm,psci";
+ qemu_fdt_setprop(fdt, "/psci", "compatible", comp, sizeof(comp));
+
+ cpu_off_fn = QEMU_PSCI_0_2_FN_CPU_OFF;
+ if (arm_feature(&armcpu->env, ARM_FEATURE_AARCH64)) {
+ cpu_suspend_fn = QEMU_PSCI_0_2_FN64_CPU_SUSPEND;
+ cpu_on_fn = QEMU_PSCI_0_2_FN64_CPU_ON;
+ migrate_fn = QEMU_PSCI_0_2_FN64_MIGRATE;
+ } else {
+ cpu_suspend_fn = QEMU_PSCI_0_2_FN_CPU_SUSPEND;
+ cpu_on_fn = QEMU_PSCI_0_2_FN_CPU_ON;
+ migrate_fn = QEMU_PSCI_0_2_FN_MIGRATE;
+ }
+ } else {
+ qemu_fdt_setprop_string(fdt, "/psci", "compatible", "arm,psci");
+
+ cpu_suspend_fn = QEMU_PSCI_0_1_FN_CPU_SUSPEND;
+ cpu_off_fn = QEMU_PSCI_0_1_FN_CPU_OFF;
+ cpu_on_fn = QEMU_PSCI_0_1_FN_CPU_ON;
+ migrate_fn = QEMU_PSCI_0_1_FN_MIGRATE;
+ }
+
qemu_fdt_setprop_string(fdt, "/psci", "method", "hvc");
- qemu_fdt_setprop_cell(fdt, "/psci", "cpu_suspend",
- PSCI_FN_CPU_SUSPEND);
- qemu_fdt_setprop_cell(fdt, "/psci", "cpu_off", PSCI_FN_CPU_OFF);
- qemu_fdt_setprop_cell(fdt, "/psci", "cpu_on", PSCI_FN_CPU_ON);
- qemu_fdt_setprop_cell(fdt, "/psci", "migrate", PSCI_FN_MIGRATE);
+
+ qemu_fdt_setprop_cell(fdt, "/psci", "cpu_suspend", cpu_suspend_fn);
+ qemu_fdt_setprop_cell(fdt, "/psci", "cpu_off", cpu_off_fn);
+ qemu_fdt_setprop_cell(fdt, "/psci", "cpu_on", cpu_on_fn);
+ qemu_fdt_setprop_cell(fdt, "/psci", "migrate", migrate_fn);
}
}
qemu_fdt_setprop_cell(vbi->fdt, "/", "interrupt-parent", gic_phandle);
qemu_fdt_add_subnode(vbi->fdt, "/intc");
+ /* 'cortex-a15-gic' means 'GIC v2' */
qemu_fdt_setprop_string(vbi->fdt, "/intc", "compatible",
- vbi->gic_compatible);
+ "arm,cortex-a15-gic");
qemu_fdt_setprop_cell(vbi->fdt, "/intc", "#interrupt-cells", 3);
qemu_fdt_setprop(vbi->fdt, "/intc", "interrupt-controller", NULL, 0);
qemu_fdt_setprop_sized_cells(vbi->fdt, "/intc", "reg",
qemu_fdt_setprop_cell(vbi->fdt, "/intc", "phandle", gic_phandle);
}
+static void create_gic(const VirtBoardInfo *vbi, qemu_irq *pic)
+{
+ /* We create a standalone GIC v2 */
+ DeviceState *gicdev;
+ SysBusDevice *gicbusdev;
+ const char *gictype = "arm_gic";
+ int i;
+
+ if (kvm_irqchip_in_kernel()) {
+ gictype = "kvm-arm-gic";
+ }
+
+ gicdev = qdev_create(NULL, gictype);
+ qdev_prop_set_uint32(gicdev, "revision", 2);
+ qdev_prop_set_uint32(gicdev, "num-cpu", smp_cpus);
+ /* Note that the num-irq property counts both internal and external
+ * interrupts; there are always 32 of the former (mandated by GIC spec).
+ */
+ qdev_prop_set_uint32(gicdev, "num-irq", NUM_IRQS + 32);
+ qdev_init_nofail(gicdev);
+ gicbusdev = SYS_BUS_DEVICE(gicdev);
+ sysbus_mmio_map(gicbusdev, 0, vbi->memmap[VIRT_GIC_DIST].base);
+ sysbus_mmio_map(gicbusdev, 1, vbi->memmap[VIRT_GIC_CPU].base);
+
+ /* Wire the outputs from each CPU's generic timer to the
+ * appropriate GIC PPI inputs, and the GIC's IRQ output to
+ * the CPU's IRQ input.
+ */
+ for (i = 0; i < smp_cpus; i++) {
+ DeviceState *cpudev = DEVICE(qemu_get_cpu(i));
+ int ppibase = NUM_IRQS + i * 32;
+ /* physical timer; we wire it up to the non-secure timer's ID,
+ * since a real A15 always has TrustZone but QEMU doesn't.
+ */
+ qdev_connect_gpio_out(cpudev, 0,
+ qdev_get_gpio_in(gicdev, ppibase + 30));
+ /* virtual timer */
+ qdev_connect_gpio_out(cpudev, 1,
+ qdev_get_gpio_in(gicdev, ppibase + 27));
+
+ sysbus_connect_irq(gicbusdev, i, qdev_get_gpio_in(cpudev, ARM_CPU_IRQ));
+ }
+
+ for (i = 0; i < NUM_IRQS; i++) {
+ pic[i] = qdev_get_gpio_in(gicdev, i);
+ }
+
+ fdt_add_gic_node(vbi);
+}
+
static void create_uart(const VirtBoardInfo *vbi, qemu_irq *pic)
{
char *nodename;
2, base, 2, size);
qemu_fdt_setprop_cells(vbi->fdt, nodename, "interrupts",
GIC_FDT_IRQ_TYPE_SPI, irq,
- GIC_FDT_IRQ_FLAGS_EDGE_LO_HI);
+ GIC_FDT_IRQ_FLAGS_LEVEL_HI);
qemu_fdt_setprop_cells(vbi->fdt, nodename, "clocks",
vbi->clock_phandle, vbi->clock_phandle);
qemu_fdt_setprop(vbi->fdt, nodename, "clock-names",
clocknames, sizeof(clocknames));
+
+ qemu_fdt_setprop_string(vbi->fdt, "/chosen", "linux,stdout-path", nodename);
+ g_free(nodename);
+}
+
+static void create_rtc(const VirtBoardInfo *vbi, qemu_irq *pic)
+{
+ char *nodename;
+ hwaddr base = vbi->memmap[VIRT_RTC].base;
+ hwaddr size = vbi->memmap[VIRT_RTC].size;
+ int irq = vbi->irqmap[VIRT_RTC];
+ const char compat[] = "arm,pl031\0arm,primecell";
+
+ sysbus_create_simple("pl031", base, pic[irq]);
+
+ nodename = g_strdup_printf("/pl031@%" PRIx64, base);
+ qemu_fdt_add_subnode(vbi->fdt, nodename);
+ qemu_fdt_setprop(vbi->fdt, nodename, "compatible", compat, sizeof(compat));
+ qemu_fdt_setprop_sized_cells(vbi->fdt, nodename, "reg",
+ 2, base, 2, size);
+ qemu_fdt_setprop_cells(vbi->fdt, nodename, "interrupts",
+ GIC_FDT_IRQ_TYPE_SPI, irq,
+ GIC_FDT_IRQ_FLAGS_LEVEL_HI);
+ qemu_fdt_setprop_cell(vbi->fdt, nodename, "clocks", vbi->clock_phandle);
+ qemu_fdt_setprop_string(vbi->fdt, nodename, "clock-names", "apb_pclk");
g_free(nodename);
}
}
}
+static void create_one_flash(const char *name, hwaddr flashbase,
+ hwaddr flashsize)
+{
+ /* Create and map a single flash device. We use the same
+ * parameters as the flash devices on the Versatile Express board.
+ */
+ DriveInfo *dinfo = drive_get_next(IF_PFLASH);
+ DeviceState *dev = qdev_create(NULL, "cfi.pflash01");
+ const uint64_t sectorlength = 256 * 1024;
+
+ if (dinfo && qdev_prop_set_drive(dev, "drive",
+ blk_bs(blk_by_legacy_dinfo(dinfo)))) {
+ abort();
+ }
+
+ qdev_prop_set_uint32(dev, "num-blocks", flashsize / sectorlength);
+ qdev_prop_set_uint64(dev, "sector-length", sectorlength);
+ qdev_prop_set_uint8(dev, "width", 4);
+ qdev_prop_set_uint8(dev, "device-width", 2);
+ qdev_prop_set_uint8(dev, "big-endian", 0);
+ qdev_prop_set_uint16(dev, "id0", 0x89);
+ qdev_prop_set_uint16(dev, "id1", 0x18);
+ qdev_prop_set_uint16(dev, "id2", 0x00);
+ qdev_prop_set_uint16(dev, "id3", 0x00);
+ qdev_prop_set_string(dev, "name", name);
+ qdev_init_nofail(dev);
+
+ sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0, flashbase);
+}
+
+static void create_flash(const VirtBoardInfo *vbi)
+{
+ /* Create two flash devices to fill the VIRT_FLASH space in the memmap.
+ * Any file passed via -bios goes in the first of these.
+ */
+ hwaddr flashsize = vbi->memmap[VIRT_FLASH].size / 2;
+ hwaddr flashbase = vbi->memmap[VIRT_FLASH].base;
+ char *nodename;
+
+ if (bios_name) {
+ const char *fn;
+
+ if (drive_get(IF_PFLASH, 0, 0)) {
+ error_report("The contents of the first flash device may be "
+ "specified with -bios or with -drive if=pflash... "
+ "but you cannot use both options at once");
+ exit(1);
+ }
+ fn = qemu_find_file(QEMU_FILE_TYPE_BIOS, bios_name);
+ if (!fn || load_image_targphys(fn, flashbase, flashsize) < 0) {
+ error_report("Could not load ROM image '%s'", bios_name);
+ exit(1);
+ }
+ }
+
+ create_one_flash("virt.flash0", flashbase, flashsize);
+ create_one_flash("virt.flash1", flashbase + flashsize, flashsize);
+
+ nodename = g_strdup_printf("/flash@%" PRIx64, flashbase);
+ qemu_fdt_add_subnode(vbi->fdt, nodename);
+ qemu_fdt_setprop_string(vbi->fdt, nodename, "compatible", "cfi-flash");
+ qemu_fdt_setprop_sized_cells(vbi->fdt, nodename, "reg",
+ 2, flashbase, 2, flashsize,
+ 2, flashbase + flashsize, 2, flashsize);
+ qemu_fdt_setprop_cell(vbi->fdt, nodename, "bank-width", 4);
+ g_free(nodename);
+}
+
static void *machvirt_dtb(const struct arm_boot_info *binfo, int *fdt_size)
{
const VirtBoardInfo *board = (const VirtBoardInfo *)binfo;
return board->fdt;
}
-static void machvirt_init(QEMUMachineInitArgs *args)
+static void machvirt_init(MachineState *machine)
{
qemu_irq pic[NUM_IRQS];
MemoryRegion *sysmem = get_system_memory();
int n;
MemoryRegion *ram = g_new(MemoryRegion, 1);
- DeviceState *dev;
- SysBusDevice *busdev;
- const char *cpu_model = args->cpu_model;
+ const char *cpu_model = machine->cpu_model;
VirtBoardInfo *vbi;
if (!cpu_model) {
exit(1);
}
- if (args->ram_size > vbi->memmap[VIRT_MEM].size) {
+ if (machine->ram_size > vbi->memmap[VIRT_MEM].size) {
error_report("mach-virt: cannot model more than 30GB RAM");
exit(1);
}
object_property_set_bool(cpuobj, true, "realized", NULL);
}
fdt_add_cpu_nodes(vbi);
+ fdt_add_psci_node(vbi);
- memory_region_init_ram(ram, NULL, "mach-virt.ram", args->ram_size);
+ memory_region_init_ram(ram, NULL, "mach-virt.ram", machine->ram_size,
+ &error_abort);
vmstate_register_ram_global(ram);
memory_region_add_subregion(sysmem, vbi->memmap[VIRT_MEM].base, ram);
- dev = qdev_create(NULL, vbi->qdevname);
- qdev_prop_set_uint32(dev, "num-cpu", smp_cpus);
- /* Note that the num-irq property counts both internal and external
- * interrupts; there are always 32 of the former (mandated by GIC spec).
- */
- qdev_prop_set_uint32(dev, "num-irq", NUM_IRQS + 32);
- qdev_init_nofail(dev);
- busdev = SYS_BUS_DEVICE(dev);
- sysbus_mmio_map(busdev, 0, vbi->memmap[VIRT_CPUPERIPHS].base);
- fdt_add_gic_node(vbi);
- for (n = 0; n < smp_cpus; n++) {
- DeviceState *cpudev = DEVICE(qemu_get_cpu(n));
+ create_flash(vbi);
- sysbus_connect_irq(busdev, n, qdev_get_gpio_in(cpudev, ARM_CPU_IRQ));
- }
-
- for (n = 0; n < NUM_IRQS; n++) {
- pic[n] = qdev_get_gpio_in(dev, n);
- }
+ create_gic(vbi, pic);
create_uart(vbi, pic);
+ create_rtc(vbi, pic);
+
/* Create mmio transports, so the user can create virtio backends
* (which will be automatically plugged in to the transports). If
* no backend is created the transport will just sit harmlessly idle.
*/
create_virtio_devices(vbi, pic);
- vbi->bootinfo.ram_size = args->ram_size;
- vbi->bootinfo.kernel_filename = args->kernel_filename;
- vbi->bootinfo.kernel_cmdline = args->kernel_cmdline;
- vbi->bootinfo.initrd_filename = args->initrd_filename;
+ vbi->bootinfo.ram_size = machine->ram_size;
+ vbi->bootinfo.kernel_filename = machine->kernel_filename;
+ vbi->bootinfo.kernel_cmdline = machine->kernel_cmdline;
+ vbi->bootinfo.initrd_filename = machine->initrd_filename;
vbi->bootinfo.nb_cpus = smp_cpus;
vbi->bootinfo.board_id = -1;
vbi->bootinfo.loader_start = vbi->memmap[VIRT_MEM].base;
.name = "virt",
.desc = "ARM Virtual Machine",
.init = machvirt_init,
- .max_cpus = 4,
+ .max_cpus = 8,
};
static void machvirt_machine_init(void)
projects / qemu.git / blobdiff