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qemu/hw/hppa/machine.c
Helge Deller c656f293df hw/hppa: Fix booting Linux kernel with initrd 
Commit 20f7b89017 ("hw/hppa: Reset vCPUs calling resettable_reset()")
broke booting the Linux kernel with initrd which may have been provided
on the command line. The problem is, that the mentioned commit zeroes
out initial registers which were preset with addresses for the Linux
kernel and initrd.

Fix it by adding proper variables which are set shortly before starting
the firmware.

Signed-off-by: Helge Deller <deller@gmx.de>
Fixes: 20f7b89017 ("hw/hppa: Reset vCPUs calling resettable_reset()")
Cc: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
2025-01-24 20:51:53 +01:00

769 lines
25 KiB
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/*
* QEMU HPPA hardware system emulator.
* (C) Copyright 2018-2023 Helge Deller <deller@gmx.de>
*
* This work is licensed under the GNU GPL license version 2 or later.
*/
#include "qemu/osdep.h"
#include "qemu/datadir.h"
#include "cpu.h"
#include "elf.h"
#include "hw/loader.h"
#include "qemu/error-report.h"
#include "system/reset.h"
#include "system/system.h"
#include "system/qtest.h"
#include "system/runstate.h"
#include "hw/rtc/mc146818rtc.h"
#include "hw/timer/i8254.h"
#include "hw/char/serial-mm.h"
#include "hw/char/parallel.h"
#include "hw/intc/i8259.h"
#include "hw/input/lasips2.h"
#include "hw/net/lasi_82596.h"
#include "hw/nmi.h"
#include "hw/usb.h"
#include "hw/pci/pci.h"
#include "hw/pci/pci_device.h"
#include "hw/pci-host/astro.h"
#include "hw/pci-host/dino.h"
#include "hw/misc/lasi.h"
#include "hppa_hardware.h"
#include "qemu/units.h"
#include "qapi/error.h"
#include "net/net.h"
#include "qemu/log.h"
#define MIN_SEABIOS_HPPA_VERSION 12 /* require at least this fw version */
#define HPA_POWER_BUTTON (FIRMWARE_END - 0x10)
static hwaddr soft_power_reg;
#define enable_lasi_lan() 0
static DeviceState *lasi_dev;
static void hppa_powerdown_req(Notifier *n, void *opaque)
{
uint32_t val;
val = ldl_be_phys(&address_space_memory, soft_power_reg);
if ((val >> 8) == 0) {
/* immediately shut down when under hardware control */
qemu_system_shutdown_request(SHUTDOWN_CAUSE_GUEST_SHUTDOWN);
return;
}
/* clear bit 31 to indicate that the power switch was pressed. */
val &= ~1;
stl_be_phys(&address_space_memory, soft_power_reg, val);
}
static Notifier hppa_system_powerdown_notifier = {
.notify = hppa_powerdown_req
};
/* Fallback for unassigned PCI I/O operations. Avoids MCHK. */
static uint64_t ignore_read(void *opaque, hwaddr addr, unsigned size)
{
return 0;
}
static void ignore_write(void *opaque, hwaddr addr, uint64_t v, unsigned size)
{
}
static const MemoryRegionOps hppa_pci_ignore_ops = {
.read = ignore_read,
.write = ignore_write,
.endianness = DEVICE_BIG_ENDIAN,
.valid = {
.min_access_size = 1,
.max_access_size = 8,
},
.impl = {
.min_access_size = 1,
.max_access_size = 8,
},
};
static ISABus *hppa_isa_bus(hwaddr addr)
{
ISABus *isa_bus;
qemu_irq *isa_irqs;
MemoryRegion *isa_region;
isa_region = g_new(MemoryRegion, 1);
memory_region_init_io(isa_region, NULL, &hppa_pci_ignore_ops,
NULL, "isa-io", 0x800);
memory_region_add_subregion(get_system_memory(), addr, isa_region);
isa_bus = isa_bus_new(NULL, get_system_memory(), isa_region,
&error_abort);
isa_irqs = i8259_init(isa_bus, NULL);
isa_bus_register_input_irqs(isa_bus, isa_irqs);
return isa_bus;
}
/*
* Helper functions to emulate RTC clock and DebugOutputPort
*/
static time_t rtc_ref;
static uint64_t io_cpu_read(void *opaque, hwaddr addr, unsigned size)
{
uint64_t val = 0;
switch (addr) {
case 0: /* RTC clock */
val = time(NULL);
val += rtc_ref;
break;
case 8: /* DebugOutputPort */
return 0xe9; /* readback */
}
return val;
}
static void io_cpu_write(void *opaque, hwaddr addr,
uint64_t val, unsigned size)
{
unsigned char ch;
Chardev *debugout;
switch (addr) {
case 0: /* RTC clock */
rtc_ref = val - time(NULL);
break;
case 8: /* DebugOutputPort */
ch = val;
debugout = serial_hd(0);
if (debugout) {
qemu_chr_fe_write_all(debugout->be, &ch, 1);
} else {
fprintf(stderr, "%c", ch);
}
break;
}
}
static const MemoryRegionOps hppa_io_helper_ops = {
.read = io_cpu_read,
.write = io_cpu_write,
.endianness = DEVICE_BIG_ENDIAN,
.valid = {
.min_access_size = 1,
.max_access_size = 8,
},
.impl = {
.min_access_size = 1,
.max_access_size = 8,
},
};
typedef uint64_t TranslateFn(void *opaque, uint64_t addr);
static uint64_t linux_kernel_virt_to_phys(void *opaque, uint64_t addr)
{
addr &= (0x10000000 - 1);
return addr;
}
static uint64_t translate_pa10(void *dummy, uint64_t addr)
{
return (uint32_t)addr;
}
static uint64_t translate_pa20(void *dummy, uint64_t addr)
{
return hppa_abs_to_phys_pa2_w0(addr);
}
static HPPACPU *cpu[HPPA_MAX_CPUS];
static uint64_t firmware_entry;
static void fw_cfg_boot_set(void *opaque, const char *boot_device,
Error **errp)
{
fw_cfg_modify_i16(opaque, FW_CFG_BOOT_DEVICE, boot_device[0]);
}
static FWCfgState *create_fw_cfg(MachineState *ms, PCIBus *pci_bus,
hwaddr addr)
{
FWCfgState *fw_cfg;
uint64_t val;
const char qemu_version[] = QEMU_VERSION;
MachineClass *mc = MACHINE_GET_CLASS(ms);
int btlb_entries = HPPA_BTLB_ENTRIES(&cpu[0]->env);
int len;
fw_cfg = fw_cfg_init_mem(addr, addr + 4);
fw_cfg_add_i16(fw_cfg, FW_CFG_NB_CPUS, ms->smp.cpus);
fw_cfg_add_i16(fw_cfg, FW_CFG_MAX_CPUS, HPPA_MAX_CPUS);
fw_cfg_add_i64(fw_cfg, FW_CFG_RAM_SIZE, ms->ram_size);
val = cpu_to_le64(MIN_SEABIOS_HPPA_VERSION);
fw_cfg_add_file(fw_cfg, "/etc/firmware-min-version",
g_memdup2(&val, sizeof(val)), sizeof(val));
val = cpu_to_le64(HPPA_TLB_ENTRIES - btlb_entries);
fw_cfg_add_file(fw_cfg, "/etc/cpu/tlb_entries",
g_memdup2(&val, sizeof(val)), sizeof(val));
val = cpu_to_le64(btlb_entries);
fw_cfg_add_file(fw_cfg, "/etc/cpu/btlb_entries",
g_memdup2(&val, sizeof(val)), sizeof(val));
len = strlen(mc->name) + 1;
fw_cfg_add_file(fw_cfg, "/etc/hppa/machine",
g_memdup2(mc->name, len), len);
val = cpu_to_le64(soft_power_reg);
fw_cfg_add_file(fw_cfg, "/etc/hppa/power-button-addr",
g_memdup2(&val, sizeof(val)), sizeof(val));
val = cpu_to_le64(CPU_HPA + 16);
fw_cfg_add_file(fw_cfg, "/etc/hppa/rtc-addr",
g_memdup2(&val, sizeof(val)), sizeof(val));
val = cpu_to_le64(CPU_HPA + 24);
fw_cfg_add_file(fw_cfg, "/etc/hppa/DebugOutputPort",
g_memdup2(&val, sizeof(val)), sizeof(val));
fw_cfg_add_i16(fw_cfg, FW_CFG_BOOT_DEVICE, ms->boot_config.order[0]);
qemu_register_boot_set(fw_cfg_boot_set, fw_cfg);
fw_cfg_add_file(fw_cfg, "/etc/qemu-version",
g_memdup2(qemu_version, sizeof(qemu_version)),
sizeof(qemu_version));
pci_bus_add_fw_cfg_extra_pci_roots(fw_cfg, pci_bus, &error_abort);
return fw_cfg;
}
static LasiState *lasi_init(void)
{
DeviceState *dev;
dev = qdev_new(TYPE_LASI_CHIP);
sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal);
return LASI_CHIP(dev);
}
static DinoState *dino_init(MemoryRegion *addr_space)
{
DeviceState *dev;
dev = qdev_new(TYPE_DINO_PCI_HOST_BRIDGE);
object_property_set_link(OBJECT(dev), "memory-as", OBJECT(addr_space),
&error_fatal);
sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal);
return DINO_PCI_HOST_BRIDGE(dev);
}
/*
* Step 1: Create CPUs and Memory
*/
static TranslateFn *machine_HP_common_init_cpus(MachineState *machine)
{
MemoryRegion *addr_space = get_system_memory();
unsigned int smp_cpus = machine->smp.cpus;
TranslateFn *translate;
MemoryRegion *cpu_region;
uint64_t ram_max;
/* Create CPUs. */
for (unsigned int i = 0; i < smp_cpus; i++) {
cpu[i] = HPPA_CPU(cpu_create(machine->cpu_type));
}
/* Initialize memory */
if (hppa_is_pa20(&cpu[0]->env)) {
translate = translate_pa20;
ram_max = 256 * GiB; /* like HP rp8440 */
} else {
translate = translate_pa10;
ram_max = FIRMWARE_START; /* 3.75 GB (32-bit CPU) */
}
soft_power_reg = translate(NULL, HPA_POWER_BUTTON);
for (unsigned int i = 0; i < smp_cpus; i++) {
g_autofree char *name = g_strdup_printf("cpu%u-io-eir", i);
cpu_region = g_new(MemoryRegion, 1);
memory_region_init_io(cpu_region, OBJECT(cpu[i]), &hppa_io_eir_ops,
cpu[i], name, 4);
memory_region_add_subregion(addr_space,
translate(NULL, CPU_HPA + i * 0x1000),
cpu_region);
}
/* RTC and DebugOutputPort on CPU #0 */
cpu_region = g_new(MemoryRegion, 1);
memory_region_init_io(cpu_region, OBJECT(cpu[0]), &hppa_io_helper_ops,
cpu[0], "cpu0-io-rtc", 2 * sizeof(uint64_t));
memory_region_add_subregion(addr_space, translate(NULL, CPU_HPA + 16),
cpu_region);
/* Main memory region. */
if (machine->ram_size > ram_max) {
info_report("Max RAM size limited to %" PRIu64 " MB", ram_max / MiB);
machine->ram_size = ram_max;
}
if (machine->ram_size <= FIRMWARE_START) {
/* contiguous memory up to 3.75 GB RAM */
memory_region_add_subregion_overlap(addr_space, 0, machine->ram, -1);
} else {
/* non-contiguous: Memory above 3.75 GB is mapped at RAM_MAP_HIGH */
MemoryRegion *mem_region;
mem_region = g_new(MemoryRegion, 2);
memory_region_init_alias(&mem_region[0], &addr_space->parent_obj,
"LowMem", machine->ram, 0, FIRMWARE_START);
memory_region_init_alias(&mem_region[1], &addr_space->parent_obj,
"HighMem", machine->ram, FIRMWARE_START,
machine->ram_size - FIRMWARE_START);
memory_region_add_subregion_overlap(addr_space, 0, &mem_region[0], -1);
memory_region_add_subregion_overlap(addr_space, RAM_MAP_HIGH,
&mem_region[1], -1);
}
return translate;
}
/*
* Last creation step: Add SCSI discs, NICs, graphics & load firmware
*/
static void machine_HP_common_init_tail(MachineState *machine, PCIBus *pci_bus,
TranslateFn *translate)
{
const char *kernel_filename = machine->kernel_filename;
const char *kernel_cmdline = machine->kernel_cmdline;
const char *initrd_filename = machine->initrd_filename;
const char *firmware = machine->firmware;
MachineClass *mc = MACHINE_GET_CLASS(machine);
DeviceState *dev;
PCIDevice *pci_dev;
char *firmware_filename;
uint64_t firmware_low, firmware_high;
long size;
uint64_t kernel_entry = 0, kernel_low, kernel_high;
MemoryRegion *addr_space = get_system_memory();
MemoryRegion *rom_region;
SysBusDevice *s;
/* SCSI disk setup. */
if (drive_get_max_bus(IF_SCSI) >= 0) {
dev = DEVICE(pci_create_simple(pci_bus, -1, "lsi53c895a"));
lsi53c8xx_handle_legacy_cmdline(dev);
}
/* Graphics setup. */
if (machine->enable_graphics && vga_interface_type != VGA_NONE) {
vga_interface_created = true;
dev = qdev_new("artist");
s = SYS_BUS_DEVICE(dev);
sysbus_realize_and_unref(s, &error_fatal);
sysbus_mmio_map(s, 0, translate(NULL, LASI_GFX_HPA));
sysbus_mmio_map(s, 1, translate(NULL, ARTIST_FB_ADDR));
}
/* Network setup. */
if (lasi_dev) {
lasi_82596_init(addr_space, translate(NULL, LASI_LAN_HPA),
qdev_get_gpio_in(lasi_dev, LASI_IRQ_LAN_HPA),
enable_lasi_lan());
}
pci_init_nic_devices(pci_bus, mc->default_nic);
/* BMC board: HP Powerbar SP2 Diva (with console only) */
pci_dev = pci_new(-1, "pci-serial");
if (!lasi_dev) {
/* bind default keyboard/serial to Diva card */
qdev_prop_set_chr(DEVICE(pci_dev), "chardev", serial_hd(0));
}
qdev_prop_set_uint8(DEVICE(pci_dev), "prog_if", 0);
pci_realize_and_unref(pci_dev, pci_bus, &error_fatal);
pci_config_set_vendor_id(pci_dev->config, PCI_VENDOR_ID_HP);
pci_config_set_device_id(pci_dev->config, 0x1048);
pci_set_word(&pci_dev->config[PCI_SUBSYSTEM_VENDOR_ID], PCI_VENDOR_ID_HP);
pci_set_word(&pci_dev->config[PCI_SUBSYSTEM_ID], 0x1227); /* Powerbar */
/* create a second serial PCI card when running Astro */
if (serial_hd(1) && !lasi_dev) {
pci_dev = pci_new(-1, "pci-serial-4x");
qdev_prop_set_chr(DEVICE(pci_dev), "chardev1", serial_hd(1));
qdev_prop_set_chr(DEVICE(pci_dev), "chardev2", serial_hd(2));
qdev_prop_set_chr(DEVICE(pci_dev), "chardev3", serial_hd(3));
qdev_prop_set_chr(DEVICE(pci_dev), "chardev4", serial_hd(4));
pci_realize_and_unref(pci_dev, pci_bus, &error_fatal);
}
/* create USB OHCI controller for USB keyboard & mouse on Astro machines */
if (!lasi_dev && machine->enable_graphics && defaults_enabled()) {
USBBus *usb_bus;
pci_create_simple(pci_bus, -1, "pci-ohci");
usb_bus = USB_BUS(object_resolve_type_unambiguous(TYPE_USB_BUS,
&error_abort));
usb_create_simple(usb_bus, "usb-kbd");
usb_create_simple(usb_bus, "usb-mouse");
}
/* register power switch emulation */
qemu_register_powerdown_notifier(&hppa_system_powerdown_notifier);
/* fw_cfg configuration interface */
create_fw_cfg(machine, pci_bus, translate(NULL, FW_CFG_IO_BASE));
/* Load firmware. Given that this is not "real" firmware,
but one explicitly written for the emulation, we might as
well load it directly from an ELF image. Load the 64-bit
firmware on 64-bit machines by default if not specified
on command line. */
if (!qtest_enabled()) {
if (!firmware) {
firmware = lasi_dev ? "hppa-firmware.img" : "hppa-firmware64.img";
}
firmware_filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, firmware);
if (firmware_filename == NULL) {
error_report("no firmware provided");
exit(1);
}
size = load_elf(firmware_filename, NULL, translate, NULL,
&firmware_entry, &firmware_low, &firmware_high, NULL,
true, EM_PARISC, 0, 0);
if (size < 0) {
error_report("could not load firmware '%s'", firmware_filename);
exit(1);
}
qemu_log_mask(CPU_LOG_PAGE, "Firmware loaded at 0x%08" PRIx64
"-0x%08" PRIx64 ", entry at 0x%08" PRIx64 ".\n",
firmware_low, firmware_high, firmware_entry);
if (firmware_low < translate(NULL, FIRMWARE_START) ||
firmware_high >= translate(NULL, FIRMWARE_END)) {
error_report("Firmware overlaps with memory or IO space");
exit(1);
}
g_free(firmware_filename);
}
rom_region = g_new(MemoryRegion, 1);
memory_region_init_ram(rom_region, NULL, "firmware",
(FIRMWARE_END - FIRMWARE_START), &error_fatal);
memory_region_add_subregion(addr_space,
translate(NULL, FIRMWARE_START), rom_region);
/* Load kernel */
if (kernel_filename) {
size = load_elf(kernel_filename, NULL, linux_kernel_virt_to_phys,
NULL, &kernel_entry, &kernel_low, &kernel_high, NULL,
true, EM_PARISC, 0, 0);
kernel_entry = linux_kernel_virt_to_phys(NULL, kernel_entry);
if (size < 0) {
error_report("could not load kernel '%s'", kernel_filename);
exit(1);
}
qemu_log_mask(CPU_LOG_PAGE, "Kernel loaded at 0x%08" PRIx64
"-0x%08" PRIx64 ", entry at 0x%08" PRIx64
", size %" PRIu64 " kB\n",
kernel_low, kernel_high, kernel_entry, size / KiB);
if (kernel_cmdline) {
cpu[0]->env.cmdline_or_bootorder = 0x4000;
pstrcpy_targphys("cmdline", cpu[0]->env.cmdline_or_bootorder,
TARGET_PAGE_SIZE, kernel_cmdline);
}
if (initrd_filename) {
ram_addr_t initrd_base;
int64_t initrd_size;
initrd_size = get_image_size(initrd_filename);
if (initrd_size < 0) {
error_report("could not load initial ram disk '%s'",
initrd_filename);
exit(1);
}
/* Load the initrd image high in memory.
Mirror the algorithm used by palo:
(1) Due to sign-extension problems and PDC,
put the initrd no higher than 1G.
(2) Reserve 64k for stack. */
initrd_base = MIN(machine->ram_size, 1 * GiB);
initrd_base = initrd_base - 64 * KiB;
initrd_base = (initrd_base - initrd_size) & TARGET_PAGE_MASK;
if (initrd_base < kernel_high) {
error_report("kernel and initial ram disk too large!");
exit(1);
}
load_image_targphys(initrd_filename, initrd_base, initrd_size);
cpu[0]->env.initrd_base = initrd_base;
cpu[0]->env.initrd_end = initrd_base + initrd_size;
}
}
if (!kernel_entry) {
/* When booting via firmware, tell firmware if we want interactive
* mode (kernel_entry=1), and to boot from CD (cmdline_or_bootorder='d')
* or hard disc (cmdline_or_bootorder='c').
*/
kernel_entry = machine->boot_config.has_menu ? machine->boot_config.menu : 0;
cpu[0]->env.cmdline_or_bootorder = machine->boot_config.order[0];
}
/* Keep initial kernel_entry for first boot */
cpu[0]->env.kernel_entry = kernel_entry;
}
/*
* Create HP B160L workstation
*/
static void machine_HP_B160L_init(MachineState *machine)
{
DeviceState *dev, *dino_dev;
MemoryRegion *addr_space = get_system_memory();
TranslateFn *translate;
ISABus *isa_bus;
PCIBus *pci_bus;
/* Create CPUs and RAM. */
translate = machine_HP_common_init_cpus(machine);
if (hppa_is_pa20(&cpu[0]->env)) {
error_report("The HP B160L workstation requires a 32-bit "
"CPU. Use '-machine C3700' instead.");
exit(1);
}
/* Init Lasi chip */
lasi_dev = DEVICE(lasi_init());
memory_region_add_subregion(addr_space, translate(NULL, LASI_HPA),
sysbus_mmio_get_region(
SYS_BUS_DEVICE(lasi_dev), 0));
/* Init Dino (PCI host bus chip). */
dino_dev = DEVICE(dino_init(addr_space));
memory_region_add_subregion(addr_space, translate(NULL, DINO_HPA),
sysbus_mmio_get_region(
SYS_BUS_DEVICE(dino_dev), 0));
pci_bus = PCI_BUS(qdev_get_child_bus(dino_dev, "pci"));
assert(pci_bus);
/* Create ISA bus, needed for PS/2 kbd/mouse port emulation */
isa_bus = hppa_isa_bus(translate(NULL, IDE_HPA));
assert(isa_bus);
/* Serial ports: Lasi and Dino use a 7.272727 MHz clock. */
serial_mm_init(addr_space, translate(NULL, LASI_UART_HPA + 0x800), 0,
qdev_get_gpio_in(lasi_dev, LASI_IRQ_UART_HPA), 7272727 / 16,
serial_hd(0), DEVICE_BIG_ENDIAN);
serial_mm_init(addr_space, translate(NULL, DINO_UART_HPA + 0x800), 0,
qdev_get_gpio_in(dino_dev, DINO_IRQ_RS232INT), 7272727 / 16,
serial_hd(1), DEVICE_BIG_ENDIAN);
/* Parallel port */
parallel_mm_init(addr_space, translate(NULL, LASI_LPT_HPA + 0x800), 0,
qdev_get_gpio_in(lasi_dev, LASI_IRQ_LAN_HPA),
parallel_hds[0]);
/* PS/2 Keyboard/Mouse */
dev = qdev_new(TYPE_LASIPS2);
sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal);
sysbus_connect_irq(SYS_BUS_DEVICE(dev), 0,
qdev_get_gpio_in(lasi_dev, LASI_IRQ_PS2KBD_HPA));
memory_region_add_subregion(addr_space,
translate(NULL, LASI_PS2KBD_HPA),
sysbus_mmio_get_region(SYS_BUS_DEVICE(dev),
0));
memory_region_add_subregion(addr_space,
translate(NULL, LASI_PS2KBD_HPA + 0x100),
sysbus_mmio_get_region(SYS_BUS_DEVICE(dev),
1));
/* Add SCSI discs, NICs, graphics & load firmware */
machine_HP_common_init_tail(machine, pci_bus, translate);
}
static AstroState *astro_init(void)
{
DeviceState *dev;
dev = qdev_new(TYPE_ASTRO_CHIP);
sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal);
return ASTRO_CHIP(dev);
}
/*
* Create HP C3700 workstation
*/
static void machine_HP_C3700_init(MachineState *machine)
{
PCIBus *pci_bus;
AstroState *astro;
DeviceState *astro_dev;
MemoryRegion *addr_space = get_system_memory();
TranslateFn *translate;
/* Create CPUs and RAM. */
translate = machine_HP_common_init_cpus(machine);
if (!hppa_is_pa20(&cpu[0]->env)) {
error_report("The HP C3000 workstation requires a 64-bit CPU. "
"Use '-machine B160L' instead.");
exit(1);
}
/* Init Astro and the Elroys (PCI host bus chips). */
astro = astro_init();
astro_dev = DEVICE(astro);
memory_region_add_subregion(addr_space, translate(NULL, ASTRO_HPA),
sysbus_mmio_get_region(
SYS_BUS_DEVICE(astro_dev), 0));
pci_bus = PCI_BUS(qdev_get_child_bus(DEVICE(astro->elroy[0]), "pci"));
assert(pci_bus);
/* Add SCSI discs, NICs, graphics & load firmware */
machine_HP_common_init_tail(machine, pci_bus, translate);
}
static void hppa_machine_reset(MachineState *ms, ResetType type)
{
unsigned int smp_cpus = ms->smp.cpus;
int i;
qemu_devices_reset(type);
/* Start all CPUs at the firmware entry point.
* Monarch CPU will initialize firmware, secondary CPUs
* will enter a small idle loop and wait for rendevouz. */
for (i = 0; i < smp_cpus; i++) {
CPUState *cs = CPU(cpu[i]);
/* reset CPU */
resettable_reset(OBJECT(cs), RESET_TYPE_COLD);
cpu_set_pc(cs, firmware_entry);
cpu[i]->env.psw = PSW_Q;
cpu[i]->env.gr[5] = CPU_HPA + i * 0x1000;
}
cpu[0]->env.gr[26] = ms->ram_size;
cpu[0]->env.gr[25] = cpu[0]->env.kernel_entry;
cpu[0]->env.gr[24] = cpu[0]->env.cmdline_or_bootorder;
cpu[0]->env.gr[23] = cpu[0]->env.initrd_base;
cpu[0]->env.gr[22] = cpu[0]->env.initrd_end;
cpu[0]->env.gr[21] = smp_cpus;
cpu[0]->env.gr[19] = FW_CFG_IO_BASE;
/* reset static fields to avoid starting Linux kernel & initrd on reboot */
cpu[0]->env.kernel_entry = 0;
cpu[0]->env.initrd_base = 0;
cpu[0]->env.initrd_end = 0;
cpu[0]->env.cmdline_or_bootorder = 'c';
}
static void hppa_nmi(NMIState *n, int cpu_index, Error **errp)
{
CPUState *cs;
CPU_FOREACH(cs) {
cpu_interrupt(cs, CPU_INTERRUPT_NMI);
}
}
static void HP_B160L_machine_init_class_init(ObjectClass *oc, void *data)
{
static const char * const valid_cpu_types[] = {
TYPE_HPPA_CPU,
NULL
};
MachineClass *mc = MACHINE_CLASS(oc);
NMIClass *nc = NMI_CLASS(oc);
mc->desc = "HP B160L workstation";
mc->default_cpu_type = TYPE_HPPA_CPU;
mc->valid_cpu_types = valid_cpu_types;
mc->init = machine_HP_B160L_init;
mc->reset = hppa_machine_reset;
mc->block_default_type = IF_SCSI;
mc->max_cpus = HPPA_MAX_CPUS;
mc->default_cpus = 1;
mc->is_default = true;
mc->default_ram_size = 512 * MiB;
mc->default_boot_order = "cd";
mc->default_ram_id = "ram";
mc->default_nic = "tulip";
nc->nmi_monitor_handler = hppa_nmi;
}
static const TypeInfo HP_B160L_machine_init_typeinfo = {
.name = MACHINE_TYPE_NAME("B160L"),
.parent = TYPE_MACHINE,
.class_init = HP_B160L_machine_init_class_init,
.interfaces = (InterfaceInfo[]) {
{ TYPE_NMI },
{ }
},
};
static void HP_C3700_machine_init_class_init(ObjectClass *oc, void *data)
{
static const char * const valid_cpu_types[] = {
TYPE_HPPA64_CPU,
NULL
};
MachineClass *mc = MACHINE_CLASS(oc);
NMIClass *nc = NMI_CLASS(oc);
mc->desc = "HP C3700 workstation";
mc->default_cpu_type = TYPE_HPPA64_CPU;
mc->valid_cpu_types = valid_cpu_types;
mc->init = machine_HP_C3700_init;
mc->reset = hppa_machine_reset;
mc->block_default_type = IF_SCSI;
mc->max_cpus = HPPA_MAX_CPUS;
mc->default_cpus = 1;
mc->is_default = false;
mc->default_ram_size = 1024 * MiB;
mc->default_boot_order = "cd";
mc->default_ram_id = "ram";
mc->default_nic = "tulip";
nc->nmi_monitor_handler = hppa_nmi;
}
static const TypeInfo HP_C3700_machine_init_typeinfo = {
.name = MACHINE_TYPE_NAME("C3700"),
.parent = TYPE_MACHINE,
.class_init = HP_C3700_machine_init_class_init,
.interfaces = (InterfaceInfo[]) {
{ TYPE_NMI },
{ }
},
};
static void hppa_machine_init_register_types(void)
{
type_register_static(&HP_B160L_machine_init_typeinfo);
type_register_static(&HP_C3700_machine_init_typeinfo);
}
type_init(hppa_machine_init_register_types)
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