/*
* Q35 chipset based pc system emulator
*
* Copyright (c) 2003-2004 Fabrice Bellard
* Copyright (c) 2009, 2010
* Isaku Yamahata <yamahata at valinux co jp>
* VA Linux Systems Japan K.K.
* Copyright (C) 2012 Jason Baron <jbaron@redhat.com>
*
* This is based on pc.c, but heavily modified.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#include "hw.h"
#include "arch_init.h"
#include "smbus.h"
#include "boards.h"
#include "mc146818rtc.h"
#include "xen.h"
#include "kvm.h"
#include "kvm/clock.h"
#include "q35.h"
#include "exec/address-spaces.h"
#include "ich9.h"
#include "hw/ide/pci.h"
#include "hw/ide/ahci.h"
#include "hw/usb.h"
/* ICH9 AHCI has 6 ports */
#define MAX_SATA_PORTS 6
/* set CMOS shutdown status register (index 0xF) as S3_resume(0xFE)
* BIOS will read it and start S3 resume at POST Entry */
static void pc_cmos_set_s3_resume(void *opaque, int irq, int level)
{
ISADevice *s = opaque;
if (level) {
rtc_set_memory(s, 0xF, 0xFE);
}
}
/* PC hardware initialisation */
static void pc_q35_init(QEMUMachineInitArgs *args)
{
ram_addr_t ram_size = args->ram_size;
const char *cpu_model = args->cpu_model;
const char *kernel_filename = args->kernel_filename;
const char *kernel_cmdline = args->kernel_cmdline;
const char *initrd_filename = args->initrd_filename;
const char *boot_device = args->boot_device;
ram_addr_t below_4g_mem_size, above_4g_mem_size;
Q35PCIHost *q35_host;
PCIBus *host_bus;
PCIDevice *lpc;
BusState *idebus[MAX_SATA_PORTS];
ISADevice *rtc_state;
ISADevice *floppy;
MemoryRegion *pci_memory;
MemoryRegion *rom_memory;
MemoryRegion *ram_memory;
GSIState *gsi_state;
ISABus *isa_bus;
int pci_enabled = 1;
qemu_irq *cpu_irq;
qemu_irq *gsi;
qemu_irq *i8259;
int i;
ICH9LPCState *ich9_lpc;
PCIDevice *ahci;
qemu_irq *cmos_s3;
pc_cpus_init(cpu_model);
kvmclock_create();
if (ram_size >= 0xb0000000) {
above_4g_mem_size = ram_size - 0xb0000000;
below_4g_mem_size = 0xb0000000;
} else {
above_4g_mem_size = 0;
below_4g_mem_size = ram_size;
}
/* pci enabled */
if (pci_enabled) {
pci_memory = g_new(MemoryRegion, 1);
memory_region_init(pci_memory, "pci", INT64_MAX);
rom_memory = pci_memory;
} else {
pci_memory = NULL;
rom_memory = get_system_memory();
}
/* allocate ram and load rom/bios */
if (!xen_enabled()) {
pc_memory_init(get_system_memory(), kernel_filename, kernel_cmdline,
initrd_filename, below_4g_mem_size, above_4g_mem_size,
rom_memory, &ram_memory);
}
/* irq lines */
gsi_state = g_malloc0(sizeof(*gsi_state));
if (kvm_irqchip_in_kernel()) {
kvm_pc_setup_irq_routing(pci_enabled);
gsi = qemu_allocate_irqs(kvm_pc_gsi_handler, gsi_state,
GSI_NUM_PINS);
} else {
gsi = qemu_allocate_irqs(gsi_handler, gsi_state, GSI_NUM_PINS);
}
/* create pci host bus */
q35_host = Q35_HOST_DEVICE(qdev_create(NULL, TYPE_Q35_HOST_DEVICE));
q35_host->mch.ram_memory = ram_memory;
q35_host->mch.pci_address_space = pci_memory;
q35_host->mch.system_memory = get_system_memory();
q35_host->mch.address_space_io = get_system_io();;
q35_host->mch.below_4g_mem_size = below_4g_mem_size;
q35_host->mch.above_4g_mem_size = above_4g_mem_size;
/* pci */
qdev_init_nofail(DEVICE(q35_host));
host_bus = q35_host->host.pci.bus;
/* create ISA bus */
lpc = pci_create_simple_multifunction(host_bus, PCI_DEVFN(ICH9_LPC_DEV,
ICH9_LPC_FUNC), true,
TYPE_ICH9_LPC_DEVICE);
ich9_lpc = ICH9_LPC_DEVICE(lpc);
ich9_lpc->pic = gsi;
ich9_lpc->ioapic = gsi_state->ioapic_irq;
pci_bus_irqs(host_bus, ich9_lpc_set_irq, ich9_lpc_map_irq, ich9_lpc,
ICH9_LPC_NB_PIRQS);
isa_bus = ich9_lpc->isa_bus;
/*end early*/
isa_bus_irqs(isa_bus, gsi);
if (kvm_irqchip_in_kernel()) {
i8259 = kvm_i8259_init(isa_bus);
} else if (xen_enabled()) {
i8259 = xen_interrupt_controller_init();
} else {
cpu_irq = pc_allocate_cpu_irq();
i8259 = i8259_init(isa_bus, cpu_irq[0]);
}
for (i = 0; i < ISA_NUM_IRQS; i++) {
gsi_state->i8259_irq[i] = i8259[i];
}
if (pci_enabled) {
ioapic_init_gsi(gsi_state, NULL);
}
pc_register_ferr_irq(gsi[13]);
/* init basic PC hardware */
pc_basic_device_init(isa_bus, gsi, &rtc_state, &floppy, false);
/* connect pm stuff to lpc */
cmos_s3 = qemu_allocate_irqs(pc_cmos_set_s3_resume, rtc_state, 1);
ich9_lpc_pm_init(lpc, *cmos_s3);
/* ahci and SATA device, for q35 1 ahci controller is built-in */
ahci = pci_create_simple_multifunction(host_bus,
PCI_DEVFN(ICH9_SATA1_DEV,
ICH9_SATA1_FUNC),
true, "ich9-ahci");
idebus[0] = qdev_get_child_bus(&ahci->qdev, "ide.0");
idebus[1] = qdev_get_child_bus(&ahci->qdev, "ide.1");
if (usb_enabled(false)) {
/* Should we create 6 UHCI according to ich9 spec? */
ehci_create_ich9_with_companions(host_bus, 0x1d);
}
/* TODO: Populate SPD eeprom data. */
smbus_eeprom_init(ich9_smb_init(host_bus,
PCI_DEVFN(ICH9_SMB_DEV, ICH9_SMB_FUNC),
0xb100),
8, NULL, 0);
pc_cmos_init(below_4g_mem_size, above_4g_mem_size, boot_device,
floppy, idebus[0], idebus[1], rtc_state);
/* the rest devices to which pci devfn is automatically assigned */
pc_vga_init(isa_bus, host_bus);
audio_init(isa_bus, host_bus);
pc_nic_init(isa_bus, host_bus);
if (pci_enabled) {
pc_pci_device_init(host_bus);
}
}
static QEMUMachine pc_q35_machine = {
.name = "q35-next",
.alias = "q35",
.desc = "Q35 chipset PC",
.init = pc_q35_init,
.max_cpus = 255,
};
static void pc_q35_machine_init(void)
{
qemu_register_machine(&pc_q35_machine);
}
machine_init(pc_q35_machine_init);
