From: Anthony Liguori <aligu...@us.ibm.com>
The big picture about the patch is shown as follows:
1) pc_init creates an I440FX, any bus devices (ISA serial port, PCI
vga and nics, etc.), sets properties appropriately, and realizes the
devices.
2) I440FX is-a PCIHost, has-a I440FX-PMC, has-a PIIX3
3) PIIX3 has-a RTC, has-a I8042, has-a DMAController, etc.
i440fx-pcihost => i440fx
i440fx => i440fx-pmc
i440fx_pmc is Programmable Memory Controller which integrated in I440FX
chipset, and move ram initialization into i440fx-pmc.
It might seem like a small change, but it better reflects the fact
that the PMC is contained within the i440fx which we will now reflect in
composition in the next few changesets.
Signed-off-by: Anthony Liguori <aligu...@us.ibm.com>
Signed-off-by: Wanpeng Li <liw...@linux.vnet.ibm.com>
---
hw/i386/Makefile.objs | 2 +-
hw/i440fx.c | 434 +++++++++++++++++++++++++++++++++++
hw/i440fx.h | 77 +++++++
hw/piix3.c | 234 +++++++++++++++++++
hw/piix3.h | 69 ++++++
hw/piix_pci.c | 599 -------------------------------------------------
6 files changed, 815 insertions(+), 600 deletions(-)
create mode 100644 hw/i440fx.c
create mode 100644 hw/i440fx.h
create mode 100644 hw/piix3.c
create mode 100644 hw/piix3.h
delete mode 100644 hw/piix_pci.c
diff --git a/hw/i386/Makefile.objs b/hw/i386/Makefile.objs
index 8c764bb..49b32d0 100644
--- a/hw/i386/Makefile.objs
+++ b/hw/i386/Makefile.objs
@@ -1,6 +1,6 @@
obj-y += mc146818rtc.o pc.o
obj-y += apic_common.o apic.o kvmvapic.o
-obj-y += sga.o ioapic_common.o ioapic.o piix_pci.o
+obj-y += sga.o ioapic_common.o ioapic.o i440fx.o piix3.o
obj-y += vmport.o
obj-y += pci-hotplug.o smbios.o wdt_ib700.o
obj-y += debugcon.o multiboot.o
diff --git a/hw/i440fx.c b/hw/i440fx.c
new file mode 100644
index 0000000..720a25a
--- /dev/null
+++ b/hw/i440fx.c
@@ -0,0 +1,434 @@
+/*
+ * QEMU i440FX PCI Host Bridge Emulation
+ *
+ * Copyright (c) 2006 Fabrice Bellard
+ *
+ * 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 "i440fx.h"
+#include "range.h"
+#include "xen.h"
+#include "loader.h"
+#include "pc.h"
+
+#define BIOS_FILENAME "bios.bin"
+
+/*
+ * I440FX chipset data sheet.
+ * http://download.intel.com/design/chipsets/datashts/29054901.pdf
+ *
+ * The I440FX is a package that contains an integrated PCI Host controller,
+ * memory controller, and is usually packaged with a PCI-ISA bus and super I/O
+ * chipset.
+ *
+ * The "i440FX" device is the PCI host controller. On function 0.0, there is a
+ * memory controller called the Programmable Memory Controller (PMC). On
+ * function 1.0, there is the PCI-ISA bus/super I/O chip called the PIIX3.
+ */
+
+#define I440FX_PMC_PCI_HOLE 0xE0000000ULL
+#define I440FX_PMC_PCI_HOLE_END 0x100000000ULL
+
+#define I440FX_PAM 0x59
+#define I440FX_PAM_SIZE 7
+#define I440FX_SMRAM 0x72
+
+static void piix3_set_irq(void *opaque, int pirq, int level)
+{
+ PIIX3State *piix3 = opaque;
+ piix3_set_irq_level(piix3, pirq, level);
+}
+
+/*
+ * return the global irq number corresponding to a given device irq
+ * pin. We could also use the bus number to have a more precise
+ * mapping.
+ */
+static int pci_slot_get_pirq(PCIDevice *pci_dev, int pci_intx)
+{
+ int slot_addend;
+ slot_addend = (pci_dev->devfn >> 3) - 1;
+ return (pci_intx + slot_addend) & 3;
+}
+
+static void update_pam(I440FXPMCState *d, uint32_t start, uint32_t end, int r,
+ PAMMemoryRegion *mem)
+{
+ if (mem->initialized) {
+ memory_region_del_subregion(d->system_memory, &mem->mem);
+ memory_region_destroy(&mem->mem);
+ }
+
+ switch (r) {
+ case 3:
+ /* RAM */
+ memory_region_init_alias(&mem->mem, "pam-ram", d->ram_memory,
+ start, end - start);
+ break;
+ case 1:
+ /* ROM (XXX: not quite correct) */
+ memory_region_init_alias(&mem->mem, "pam-rom", d->ram_memory,
+ start, end - start);
+ memory_region_set_readonly(&mem->mem, true);
+ break;
+ case 2:
+ case 0:
+ /* XXX: should distinguish read/write cases */
+ memory_region_init_alias(&mem->mem, "pam-pci", d->pci_address_space,
+ start, end - start);
+ break;
+ }
+ memory_region_add_subregion_overlap(d->system_memory,
+ start, &mem->mem, 1);
+ mem->initialized = true;
+}
+
+static void i440fx_pmc_update_memory_mappings(I440FXPMCState *d)
+{
+ int i, r;
+ uint32_t smram;
+ bool smram_enabled;
+
+ memory_region_transaction_begin();
+ update_pam(d, 0xf0000, 0x100000, (d->dev.config[I440FX_PAM] >> 4) & 3,
+ &d->pam_regions[0]);
+ for (i = 0; i < 12; i++) {
+ r = (d->dev.config[(i >> 1) + (I440FX_PAM + 1)] >> ((i & 1) * 4)) & 3;
+ update_pam(d, 0xc0000 + 0x4000 * i, 0xc0000 + 0x4000 * (i + 1), r,
+ &d->pam_regions[i+1]);
+ }
+ smram = d->dev.config[I440FX_SMRAM];
+ smram_enabled = (d->smm_enabled && (smram & 0x08)) || (smram & 0x40);
+ memory_region_set_enabled(&d->smram_region, !smram_enabled);
+ memory_region_transaction_commit();
+}
+
+static void i440fx_pmc_set_smm(int val, void *arg)
+{
+ I440FXPMCState *d = arg;
+
+ val = (val != 0);
+ if (d->smm_enabled != val) {
+ d->smm_enabled = val;
+ i440fx_pmc_update_memory_mappings(d);
+ }
+}
+
+
+static void i440fx_pmc_write_config(PCIDevice *dev,
+ uint32_t address, uint32_t val, int len)
+{
+ I440FXPMCState *d = DO_UPCAST(I440FXPMCState, dev, dev);
+
+ /* XXX: implement SMRAM.D_LOCK */
+ pci_default_write_config(dev, address, val, len);
+ if (ranges_overlap(address, len, I440FX_PAM, I440FX_PAM_SIZE) ||
+ range_covers_byte(address, len, I440FX_SMRAM)) {
+ i440fx_pmc_update_memory_mappings(d);
+ }
+}
+
+static int i440fx_pmc_load_old(QEMUFile *f, void *opaque, int version_id)
+{
+ I440FXPMCState *d = opaque;
+ int ret, i;
+
+ ret = pci_device_load(&d->dev, f);
+ if (ret < 0) {
+ return ret;
+ }
+ i440fx_pmc_update_memory_mappings(d);
+ qemu_get_8s(f, &d->smm_enabled);
+
+ if (version_id == 2) {
+ for (i = 0; i < PIIX_NUM_PIRQS; i++) {
+ qemu_get_be32(f); /* dummy load for compatibility */
+ }
+ }
+
+ return 0;
+}
+
+static int i440fx_pmc_post_load(void *opaque, int version_id)
+{
+ I440FXPMCState *d = opaque;
+
+ i440fx_pmc_update_memory_mappings(d);
+ return 0;
+}
+
+static const VMStateDescription vmstate_i440fx_pmc = {
+ .name = "I440FX", /* this is wrong but we can't change it */
+ .version_id = 3,
+ .minimum_version_id = 3,
+ .minimum_version_id_old = 1,
+ .load_state_old = i440fx_pmc_load_old,
+ .post_load = i440fx_pmc_post_load,
+ .fields = (VMStateField[]) {
+ VMSTATE_PCI_DEVICE(dev, I440FXPMCState),
+ VMSTATE_UINT8(smm_enabled, I440FXPMCState),
+ VMSTATE_END_OF_LIST()
+ }
+};
+
+static int i440fx_realize(SysBusDevice *dev)
+{
+ I440FXState *s = I440FX(dev);
+ PCIHostState *h = PCI_HOST(s);
+ int bios_size, isa_bios_size;
+ char *filename;
+ int ret;
+
+ g_assert(h->address_space != NULL);
+ g_assert(s->address_space_io != NULL);
+
+ h->bus = pci_bus_new(DEVICE(s), NULL, &s->pci_address_space,
+ s->address_space_io, 0);
+
+ memory_region_init_io(&h->conf_mem, &pci_host_conf_le_ops, s,
+ "pci-conf-idx", 4);
+ sysbus_add_io(dev, 0xcf8, &h->conf_mem);
+ sysbus_init_ioports(&h->busdev, 0xcf8, 4);
+
+ memory_region_init_io(&h->data_mem, &pci_host_data_le_ops, s,
+ "pci-conf-data", 4);
+ sysbus_add_io(dev, 0xcfc, &h->data_mem);
+ sysbus_init_ioports(&h->busdev, 0xcfc, 4);
+
+ s->pmc.system_memory = h->address_space;
+ s->pmc.pci_address_space = &s->pci_address_space;
+
+ qdev_set_parent_bus(DEVICE(&s->pmc), &(h->bus->qbus));
+ qdev_init_nofail(DEVICE(&s->pmc));
+
+ qdev_set_parent_bus(DEVICE(&s->piix3), &(h->bus->qbus));
+ qdev_init_nofail(DEVICE(&s->piix3));
+
+ if (xen_enabled()) {
+ pci_bus_irqs(h->bus, xen_piix3_set_irq, xen_pci_slot_get_pirq,
+ &s->piix3, XEN_PIIX_NUM_PIRQS);
+ } else {
+ pci_bus_irqs(h->bus, piix3_set_irq, pci_slot_get_pirq, &s->piix3,
+ PIIX_NUM_PIRQS);
+ }
+
+ /* BIOS load */
+ filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, s->bios_name);
+ if (filename) {
+ bios_size = get_image_size(filename);
+ } else {
+ bios_size = -1;
+ }
+ if (bios_size <= 0 ||
+ (bios_size % 65536) != 0) {
+ goto bios_error;
+ }
+ memory_region_init_ram(&s->bios, "pc.bios", bios_size);
+ vmstate_register_ram_global(&s->bios);
+ memory_region_set_readonly(&s->bios, true);
+ ret = rom_add_file_fixed(s->bios_name, (uint32_t)(-bios_size), -1);
+ if (ret != 0) {
+ bios_error:
+ fprintf(stderr, "qemu: could not load PC BIOS '%s'\n", s->bios_name);
+ exit(1);
+ }
+ if (filename) {
+ g_free(filename);
+ }
+
+ /* map the last 128KB of the BIOS in ISA space */
+ isa_bios_size = bios_size;
+ if (isa_bios_size > (128 * 1024)) {
+ isa_bios_size = 128 * 1024;
+ }
+ memory_region_init_alias(&s->isa_bios, "isa-bios", &s->bios,
+ bios_size - isa_bios_size, isa_bios_size);
+ memory_region_add_subregion_overlap(&s->pci_address_space,
+ 0x100000 - isa_bios_size,
+ &s->isa_bios,
+ 1);
+ memory_region_set_readonly(&s->isa_bios, true);
+
+ memory_region_init_ram(&s->option_roms, "pc.rom", PC_ROM_SIZE);
+ vmstate_register_ram_global(&s->option_roms);
+ memory_region_add_subregion_overlap(&s->pci_address_space,
+ PC_ROM_MIN_VGA,
+ &s->option_roms,
+ 1);
+
+ /* map all the bios at the top of memory */
+ memory_region_add_subregion(&s->pci_address_space,
+ (uint32_t)(-bios_size),
+ &s->bios);
+
+ return 0;
+}
+
+static void i440fx_initfn(Object *obj)
+{
+ I440FXState *s = I440FX(obj);
+
+ object_initialize(&s->pmc, TYPE_I440FX_PMC);
+ object_property_add_child(obj, "pmc", OBJECT(&s->pmc), NULL);
+ qdev_prop_set_uint32(DEVICE(&s->pmc), "addr", PCI_DEVFN(0, 0));
+
+ /* Xen supports additional interrupt routes from the PCI devices to
+ * the IOAPIC: the four pins of each PCI device on the bus are also
+ * connected to the IOAPIC directly.
+ * These additional routes can be discovered through ACPI. */
+ if (xen_enabled()) {
+ object_initialize(&s->piix3, "PIIX3-xen");
+ } else {
+ object_initialize(&s->piix3, "PIIX3");
+ }
+ object_property_add_child(OBJECT(s), "piix3", OBJECT(&s->piix3), NULL);
+
+ s->bios_name = g_strdup(BIOS_FILENAME);
+
+ memory_region_init(&s->pci_address_space, "pci", INT64_MAX);
+}
+
+static int i440fx_pmc_realize(PCIDevice *dev)
+{
+ I440FXPMCState *d = DO_UPCAST(I440FXPMCState, dev, dev);
+ ram_addr_t ram_size;
+ uint64_t below_4g_mem_size, above_4g_mem_size;
+ uint64_t pci_hole_start, pci_hole_size;
+ uint64_t pci_hole64_start, pci_hole64_size;
+
+ g_assert(d->ram_size != 0);
+ g_assert(d->system_memory != NULL);
+ g_assert(d->pci_address_space != NULL);
+
+ /* Calculate memory geometry from RAM size */
+ if (d->ram_size > I440FX_PMC_PCI_HOLE) {
+ below_4g_mem_size = I440FX_PMC_PCI_HOLE;
+ above_4g_mem_size = d->ram_size - I440FX_PMC_PCI_HOLE;
+ } else {
+ below_4g_mem_size = d->ram_size;
+ above_4g_mem_size = 0;
+ }
+
+ /* Allocate RAM. We allocate it as a single memory region and use
+ * aliases to address portions of it, mostly for backwards compatibility
+ * with older qemus that used qemu_ram_alloc().
+ */
+ memory_region_init_ram(&d->ram, "pc.ram",
+ below_4g_mem_size + above_4g_mem_size);
+ vmstate_register_ram_global(&d->ram);
+
+ memory_region_init_alias(&d->ram_below_4g, "ram-below-4g", &d->ram,
+ 0, below_4g_mem_size);
+ memory_region_add_subregion(d->system_memory, 0, &d->ram_below_4g);
+ if (above_4g_mem_size > 0) {
+ memory_region_init_alias(&d->ram_above_4g, "ram-above-4g", &d->ram,
+ below_4g_mem_size, above_4g_mem_size);
+ memory_region_add_subregion(d->system_memory, 0x100000000ULL,
+ &d->ram_above_4g);
+ }
+
+ pci_hole_start = below_4g_mem_size;
+ pci_hole_size = I440FX_PMC_PCI_HOLE_END - pci_hole_start;
+
+ pci_hole64_start = I440FX_PMC_PCI_HOLE_END + d->ram_size - pci_hole_start;
+ if (sizeof(target_phys_addr_t) == 4) {
+ pci_hole64_size = 0;
+ } else {
+ pci_hole64_size = (1ULL << 62);
+ }
+
+ memory_region_init_alias(&d->pci_hole, "pci-hole", d->pci_address_space,
+ pci_hole_start, pci_hole_size);
+ memory_region_add_subregion(d->system_memory, pci_hole_start,
&d->pci_hole);
+ memory_region_init_alias(&d->pci_hole_64bit, "pci-hole64",
+ d->pci_address_space,
+ pci_hole64_start, pci_hole64_size);
+ if (pci_hole64_size) {
+ memory_region_add_subregion(d->system_memory, pci_hole64_start,
+ &d->pci_hole_64bit);
+ }
+ memory_region_init_alias(&d->smram_region, "smram-region",
+ d->pci_address_space, 0xa0000, 0x20000);
+ memory_region_add_subregion_overlap(d->system_memory, 0xa0000,
+ &d->smram_region, 1);
+ memory_region_set_enabled(&d->smram_region, false);
+
+ ram_size = d->ram_size / 8 / 1024 / 1024;
+ if (ram_size > 255) {
+ ram_size = 255;
+ }
+ d->dev.config[0x57] = ram_size;
+
+ i440fx_pmc_update_memory_mappings(d);
+
+ d->dev.config[I440FX_SMRAM] = 0x02;
+
+ cpu_smm_register(&i440fx_pmc_set_smm, d);
+ return 0;
+}
+
+static void i440fx_pmc_class_init(ObjectClass *klass, void *data)
+{
+ DeviceClass *dc = DEVICE_CLASS(klass);
+ PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
+
+ k->no_hotplug = 1;
+ k->init = i440fx_pmc_realize;
+ k->config_write = i440fx_pmc_write_config;
+ k->vendor_id = PCI_VENDOR_ID_INTEL;
+ k->device_id = PCI_DEVICE_ID_INTEL_82441;
+ k->class_id = PCI_CLASS_BRIDGE_HOST;
+ k->revision = 0x02;
+ dc->desc = "Host bridge";
+ dc->no_user = 1;
+ dc->vmsd = &vmstate_i440fx_pmc;
+}
+
+static TypeInfo i440fx_pmc_info = {
+ .name = TYPE_I440FX_PMC,
+ .parent = TYPE_PCI_DEVICE,
+ .instance_size = sizeof(I440FXPMCState),
+ .class_init = i440fx_pmc_class_init,
+};
+
+static void i440fx_class_init(ObjectClass *klass, void *data)
+{
+ DeviceClass *dc = DEVICE_CLASS(klass);
+ SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass);
+
+ k->init = i440fx_realize;
+ dc->fw_name = "pci";
+ dc->no_user = 1;
+}
+
+static TypeInfo i440fx_info = {
+ .name = TYPE_I440FX,
+ .parent = TYPE_PCI_HOST_BRIDGE,
+ .instance_size = sizeof(I440FXState),
+ .instance_init = i440fx_initfn,
+ .class_init = i440fx_class_init,
+};
+
+static void register_devices(void)
+{
+ type_register_static(&i440fx_info);
+ type_register_static(&i440fx_pmc_info);
+}
+type_init(register_devices);
diff --git a/hw/i440fx.h b/hw/i440fx.h
new file mode 100644
index 0000000..ae1e58e
--- /dev/null
+++ b/hw/i440fx.h
@@ -0,0 +1,77 @@
+/*
+ * QEMU i440FX PCI Host Bridge Emulation
+ *
+ * Copyright (c) 2006 Fabrice Bellard
+ *
+ * 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.
+ */
+
+#ifndef QEMU_I440FX_H
+#define QEMU_I440FX_H
+
+#include "pci_host.h"
+#include "piix3.h"
+#include "pci_internals.h"
+
+#define TYPE_I440FX_PMC "i440FX-PMC"
+#define I440FX_PMC(obj) OBJECT_CHECK(I440FXPMCState, (obj), TYPE_I440FX_PMC)
+
+typedef struct PAMMemoryRegion {
+ MemoryRegion mem;
+ bool initialized;
+} PAMMemoryRegion;
+
+typedef struct I440FXPMCState {
+ PCIDevice dev;
+ MemoryRegion *system_memory;
+ MemoryRegion *pci_address_space;
+ MemoryRegion *ram_memory;
+ MemoryRegion pci_hole;
+ MemoryRegion pci_hole_64bit;
+ PAMMemoryRegion pam_regions[13];
+ MemoryRegion smram_region;
+ uint8_t smm_enabled;
+
+ ram_addr_t ram_size;
+ MemoryRegion ram;
+ MemoryRegion ram_below_4g;
+ MemoryRegion ram_above_4g;
+} I440FXPMCState;
+
+#define TYPE_I440FX "i440FX"
+#define I440FX(obj) OBJECT_CHECK(I440FXState, (obj), TYPE_I440FX)
+
+typedef struct I440FXState {
+ PCIHostState parent;
+
+ MemoryRegion *address_space_io;
+ MemoryRegion pci_address_space;
+
+ I440FXPMCState pmc;
+ PIIX3State piix3;
+
+ /* Is this more appropriate for the PMC? */
+ MemoryRegion bios;
+ MemoryRegion isa_bios;
+ MemoryRegion option_roms;
+
+ char *bios_name;
+} I440FXState;
+
+#endif
diff --git a/hw/piix3.c b/hw/piix3.c
new file mode 100644
index 0000000..eca6ec8
--- /dev/null
+++ b/hw/piix3.c
@@ -0,0 +1,234 @@
+/*
+ * QEMU PIIX3 PCI-ISA Bridge Emulation
+ *
+ * Copyright (c) 2006 Fabrice Bellard
+ * Copyright IBM, Corp. 2012
+ *
+ * Authors:
+ * Anthony Liguori <aligu...@us.ibm.com>
+ *
+ * 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 "piix3.h"
+#include "range.h"
+#include "kvm.h"
+#include "xen.h"
+#include "pc.h"
+#include "pcspk.h"
+
+/* PIIX3 PCI to ISA bridge */
+static void piix3_set_irq_pic(PIIX3State *piix3, int pic_irq)
+{
+ qemu_set_irq(piix3->pic[pic_irq],
+ !!(piix3->pic_levels &
+ (((1ULL << PIIX_NUM_PIRQS) - 1) <<
+ (pic_irq * PIIX_NUM_PIRQS))));
+}
+
+void piix3_set_irq_level(PIIX3State *piix3, int pirq, int level)
+{
+ int pic_irq;
+ uint64_t mask;
+
+ pic_irq = piix3->dev.config[PIIX_PIRQC + pirq];
+ if (pic_irq >= PIIX_NUM_PIC_IRQS) {
+ return;
+ }
+
+ mask = 1ULL << ((pic_irq * PIIX_NUM_PIRQS) + pirq);
+ piix3->pic_levels &= ~mask;
+ piix3->pic_levels |= mask * !!level;
+
+ piix3_set_irq_pic(piix3, pic_irq);
+}
+
+/* irq routing is changed. so rebuild bitmap */
+static void piix3_update_irq_levels(PIIX3State *piix3)
+{
+ int pirq;
+
+ piix3->pic_levels = 0;
+ for (pirq = 0; pirq < PIIX_NUM_PIRQS; pirq++) {
+ piix3_set_irq_level(piix3, pirq,
+ pci_bus_get_irq_level(piix3->dev.bus, pirq));
+ }
+}
+
+static void piix3_write_config(PCIDevice *dev,
+ uint32_t address, uint32_t val, int len)
+{
+ pci_default_write_config(dev, address, val, len);
+ if (ranges_overlap(address, len, PIIX_PIRQC, 4)) {
+ PIIX3State *piix3 = DO_UPCAST(PIIX3State, dev, dev);
+ int pic_irq;
+ piix3_update_irq_levels(piix3);
+ for (pic_irq = 0; pic_irq < PIIX_NUM_PIC_IRQS; pic_irq++) {
+ piix3_set_irq_pic(piix3, pic_irq);
+ }
+ }
+}
+
+static void piix3_write_config_xen(PCIDevice *dev,
+ uint32_t address, uint32_t val, int len)
+{
+ xen_piix_pci_write_config_client(address, val, len);
+ piix3_write_config(dev, address, val, len);
+}
+
+static void piix3_reset(DeviceState *dev)
+{
+ PIIX3State *d = PIIX3(dev);
+ uint8_t *pci_conf = d->dev.config;
+
+ /* master, memory and I/O */
+ pci_conf[0x04] = 0x07;
+ pci_conf[0x05] = 0x00;
+ pci_conf[0x06] = 0x00;
+ /* PCI_status_devsel_medium */
+ pci_conf[0x07] = 0x02;
+ pci_conf[0x4c] = 0x4d;
+ pci_conf[0x4e] = 0x03;
+ pci_conf[0x4f] = 0x00;
+ pci_conf[0x60] = 0x80;
+ pci_conf[0x61] = 0x80;
+ pci_conf[0x62] = 0x80;
+ pci_conf[0x63] = 0x80;
+ pci_conf[0x69] = 0x02;
+ pci_conf[0x70] = 0x80;
+ pci_conf[0x76] = 0x0c;
+ pci_conf[0x77] = 0x0c;
+ pci_conf[0x78] = 0x02;
+ pci_conf[0x79] = 0x00;
+ pci_conf[0x80] = 0x00;
+ pci_conf[0x82] = 0x00;
+ pci_conf[0xa0] = 0x08;
+ pci_conf[0xa2] = 0x00;
+ pci_conf[0xa3] = 0x00;
+ pci_conf[0xa4] = 0x00;
+ pci_conf[0xa5] = 0x00;
+ pci_conf[0xa6] = 0x00;
+ pci_conf[0xa7] = 0x00;
+ pci_conf[0xa8] = 0x0f;
+ pci_conf[0xaa] = 0x00;
+ pci_conf[0xab] = 0x00;
+ pci_conf[0xac] = 0x00;
+ pci_conf[0xae] = 0x00;
+
+ d->pic_levels = 0;
+}
+
+static int piix3_post_load(void *opaque, int version_id)
+{
+ PIIX3State *piix3 = opaque;
+ piix3_update_irq_levels(piix3);
+ return 0;
+}
+
+static void piix3_pre_save(void *opaque)
+{
+ int i;
+ PIIX3State *piix3 = opaque;
+
+ for (i = 0; i < ARRAY_SIZE(piix3->pci_irq_levels_vmstate); i++) {
+ piix3->pci_irq_levels_vmstate[i] =
+ pci_bus_get_irq_level(piix3->dev.bus, i);
+ }
+}
+
+static const VMStateDescription vmstate_piix3 = {
+ .name = TYPE_PIIX3,
+ .version_id = 3,
+ .minimum_version_id = 2,
+ .minimum_version_id_old = 2,
+ .post_load = piix3_post_load,
+ .pre_save = piix3_pre_save,
+ .fields = (VMStateField[]) {
+ VMSTATE_PCI_DEVICE(dev, PIIX3State),
+ VMSTATE_INT32_ARRAY_V(pci_irq_levels_vmstate, PIIX3State,
+ PIIX_NUM_PIRQS, 3),
+ VMSTATE_END_OF_LIST()
+ }
+};
+
+static int piix3_realize(PCIDevice *dev)
+{
+ PIIX3State *s = PIIX3(dev);
+
+ /* Initialize ISA Bus */
+ s->bus = isa_bus_new(DEVICE(dev), pci_address_space_io(dev));
+
+ return 0;
+}
+
+static void piix3_initfn(Object *obj)
+{
+ PIIX3State *s = PIIX3(obj);
+
+ qdev_prop_set_int32(DEVICE(s), "addr", PCI_DEVFN(1, 0));
+ qdev_prop_set_bit(DEVICE(s), "multifunction", true);
+
+}
+
+static void piix3_class_init(ObjectClass *klass, void *data)
+{
+ DeviceClass *dc = DEVICE_CLASS(klass);
+ PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
+
+ dc->desc = "ISA bridge";
+ dc->vmsd = &vmstate_piix3;
+ dc->no_user = 1;
+ dc->reset = piix3_reset;
+ k->no_hotplug = 1;
+ k->init = piix3_realize;
+ k->config_write = piix3_write_config;
+ k->vendor_id = PCI_VENDOR_ID_INTEL;
+ /* 82371SB PIIX3 PCI-to-ISA bridge (Step A1) */
+ k->device_id = PCI_DEVICE_ID_INTEL_82371SB_0;
+ k->class_id = PCI_CLASS_BRIDGE_ISA;
+}
+
+static TypeInfo piix3_info = {
+ .name = TYPE_PIIX3,
+ .parent = TYPE_PCI_DEVICE,
+ .instance_size = sizeof(PIIX3State),
+ .instance_init = piix3_initfn,
+ .class_init = piix3_class_init,
+};
+
+static void piix3_xen_class_init(ObjectClass *klass, void *data)
+{
+ PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
+
+ k->config_write = piix3_write_config_xen;
+};
+
+static TypeInfo piix3_xen_info = {
+ .name = "PIIX3-xen",
+ .parent = TYPE_PIIX3,
+ .instance_size = sizeof(PIIX3State),
+ .class_init = piix3_xen_class_init,
+};
+
+static void register_devices(void)
+{
+ type_register_static(&piix3_info);
+ type_register_static(&piix3_xen_info);
+}
+type_init(register_devices)
diff --git a/hw/piix3.h b/hw/piix3.h
new file mode 100644
index 0000000..125b9c2
--- /dev/null
+++ b/hw/piix3.h
@@ -0,0 +1,69 @@
+/*
+ * QEMU PIIX3 PCI-ISA Bridge Emulation
+ *
+ * Copyright (c) 2006 Fabrice Bellard
+ * Copyright IBM, Corp. 2012
+ *
+ * Authors:
+ * Anthony Liguori <aligu...@us.ibm.com>
+ *
+ * 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.
+ */
+
+#ifndef QEMU_PIIX3_H
+#define QEMU_PIIX3_H
+
+#include "pci.h"
+
+#define PIIX_NUM_PIC_IRQS 16 /* i8259 * 2 */
+#define PIIX_NUM_PIRQS 4ULL /* PIRQ[A-D] */
+#define XEN_PIIX_NUM_PIRQS 128ULL
+#define PIIX_PIRQC 0x60
+
+#define TYPE_PIIX3 "PIIX3"
+#define PIIX3(obj) OBJECT_CHECK(PIIX3State, (obj), TYPE_PIIX3)
+
+typedef struct PIIX3State {
+ PCIDevice dev;
+
+ /*
+ * bitmap to track pic levels.
+ * The pic level is the logical OR of all the PCI irqs mapped to it
+ * So one PIC level is tracked by PIIX_NUM_PIRQS bits.
+ *
+ * PIRQ is mapped to PIC pins, we track it by
+ * PIIX_NUM_PIRQS * PIIX_NUM_PIC_IRQS = 64 bits with
+ * pic_irq * PIIX_NUM_PIRQS + pirq
+ */
+#if PIIX_NUM_PIC_IRQS * PIIX_NUM_PIRQS > 64
+#error "unable to encode pic state in 64bit in pic_levels."
+#endif
+ uint64_t pic_levels;
+
+ ISABus *bus;
+
+ qemu_irq *pic;
+
+ /* This member isn't used. Just for save/load compatibility */
+ int32_t pci_irq_levels_vmstate[PIIX_NUM_PIRQS];
+} PIIX3State;
+
+void piix3_set_irq_level(PIIX3State *piix3, int pirq, int level);
+
+#endif
diff --git a/hw/piix_pci.c b/hw/piix_pci.c
deleted file mode 100644
index 09e84f5..0000000
--- a/hw/piix_pci.c
+++ /dev/null
@@ -1,599 +0,0 @@
-/*
- * QEMU i440FX/PIIX3 PCI Bridge Emulation
- *
- * Copyright (c) 2006 Fabrice Bellard
- *
- * 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 "pc.h"
-#include "pci.h"
-#include "pci_host.h"
-#include "isa.h"
-#include "sysbus.h"
-#include "range.h"
-#include "xen.h"
-
-/*
- * I440FX chipset data sheet.
- * http://download.intel.com/design/chipsets/datashts/29054901.pdf
- */
-
-typedef PCIHostState I440FXState;
-
-#define PIIX_NUM_PIC_IRQS 16 /* i8259 * 2 */
-#define PIIX_NUM_PIRQS 4ULL /* PIRQ[A-D] */
-#define XEN_PIIX_NUM_PIRQS 128ULL
-#define PIIX_PIRQC 0x60
-
-typedef struct PIIX3State {
- PCIDevice dev;
-
- /*
- * bitmap to track pic levels.
- * The pic level is the logical OR of all the PCI irqs mapped to it
- * So one PIC level is tracked by PIIX_NUM_PIRQS bits.
- *
- * PIRQ is mapped to PIC pins, we track it by
- * PIIX_NUM_PIRQS * PIIX_NUM_PIC_IRQS = 64 bits with
- * pic_irq * PIIX_NUM_PIRQS + pirq
- */
-#if PIIX_NUM_PIC_IRQS * PIIX_NUM_PIRQS > 64
-#error "unable to encode pic state in 64bit in pic_levels."
-#endif
- uint64_t pic_levels;
-
- qemu_irq *pic;
-
- /* This member isn't used. Just for save/load compatibility */
- int32_t pci_irq_levels_vmstate[PIIX_NUM_PIRQS];
-} PIIX3State;
-
-typedef struct PAMMemoryRegion {
- MemoryRegion mem;
- bool initialized;
-} PAMMemoryRegion;
-
-struct PCII440FXState {
- PCIDevice dev;
- MemoryRegion *system_memory;
- MemoryRegion *pci_address_space;
- MemoryRegion *ram_memory;
- MemoryRegion pci_hole;
- MemoryRegion pci_hole_64bit;
- PAMMemoryRegion pam_regions[13];
- MemoryRegion smram_region;
- uint8_t smm_enabled;
-};
-
-
-#define I440FX_PAM 0x59
-#define I440FX_PAM_SIZE 7
-#define I440FX_SMRAM 0x72
-
-static void piix3_set_irq(void *opaque, int pirq, int level);
-static void piix3_write_config_xen(PCIDevice *dev,
- uint32_t address, uint32_t val, int len);
-
-/* return the global irq number corresponding to a given device irq
- pin. We could also use the bus number to have a more precise
- mapping. */
-static int pci_slot_get_pirq(PCIDevice *pci_dev, int pci_intx)
-{
- int slot_addend;
- slot_addend = (pci_dev->devfn >> 3) - 1;
- return (pci_intx + slot_addend) & 3;
-}
-
-static void update_pam(PCII440FXState *d, uint32_t start, uint32_t end, int r,
- PAMMemoryRegion *mem)
-{
- if (mem->initialized) {
- memory_region_del_subregion(d->system_memory, &mem->mem);
- memory_region_destroy(&mem->mem);
- }
-
- // printf("ISA mapping %08x-0x%08x: %d\n", start, end, r);
- switch(r) {
- case 3:
- /* RAM */
- memory_region_init_alias(&mem->mem, "pam-ram", d->ram_memory,
- start, end - start);
- break;
- case 1:
- /* ROM (XXX: not quite correct) */
- memory_region_init_alias(&mem->mem, "pam-rom", d->ram_memory,
- start, end - start);
- memory_region_set_readonly(&mem->mem, true);
- break;
- case 2:
- case 0:
- /* XXX: should distinguish read/write cases */
- memory_region_init_alias(&mem->mem, "pam-pci", d->pci_address_space,
- start, end - start);
- break;
- }
- memory_region_add_subregion_overlap(d->system_memory,
- start, &mem->mem, 1);
- mem->initialized = true;
-}
-
-static void i440fx_update_memory_mappings(PCII440FXState *d)
-{
- int i, r;
- uint32_t smram;
- bool smram_enabled;
-
- memory_region_transaction_begin();
- update_pam(d, 0xf0000, 0x100000, (d->dev.config[I440FX_PAM] >> 4) & 3,
- &d->pam_regions[0]);
- for(i = 0; i < 12; i++) {
- r = (d->dev.config[(i >> 1) + (I440FX_PAM + 1)] >> ((i & 1) * 4)) & 3;
- update_pam(d, 0xc0000 + 0x4000 * i, 0xc0000 + 0x4000 * (i + 1), r,
- &d->pam_regions[i+1]);
- }
- smram = d->dev.config[I440FX_SMRAM];
- smram_enabled = (d->smm_enabled && (smram & 0x08)) || (smram & 0x40);
- memory_region_set_enabled(&d->smram_region, !smram_enabled);
- memory_region_transaction_commit();
-}
-
-static void i440fx_set_smm(int val, void *arg)
-{
- PCII440FXState *d = arg;
-
- val = (val != 0);
- if (d->smm_enabled != val) {
- d->smm_enabled = val;
- i440fx_update_memory_mappings(d);
- }
-}
-
-
-static void i440fx_write_config(PCIDevice *dev,
- uint32_t address, uint32_t val, int len)
-{
- PCII440FXState *d = DO_UPCAST(PCII440FXState, dev, dev);
-
- /* XXX: implement SMRAM.D_LOCK */
- pci_default_write_config(dev, address, val, len);
- if (ranges_overlap(address, len, I440FX_PAM, I440FX_PAM_SIZE) ||
- range_covers_byte(address, len, I440FX_SMRAM)) {
- i440fx_update_memory_mappings(d);
- }
-}
-
-static int i440fx_load_old(QEMUFile* f, void *opaque, int version_id)
-{
- PCII440FXState *d = opaque;
- int ret, i;
-
- ret = pci_device_load(&d->dev, f);
- if (ret < 0)
- return ret;
- i440fx_update_memory_mappings(d);
- qemu_get_8s(f, &d->smm_enabled);
-
- if (version_id == 2) {
- for (i = 0; i < PIIX_NUM_PIRQS; i++) {
- qemu_get_be32(f); /* dummy load for compatibility */
- }
- }
-
- return 0;
-}
-
-static int i440fx_post_load(void *opaque, int version_id)
-{
- PCII440FXState *d = opaque;
-
- i440fx_update_memory_mappings(d);
- return 0;
-}
-
-static const VMStateDescription vmstate_i440fx = {
- .name = "I440FX",
- .version_id = 3,
- .minimum_version_id = 3,
- .minimum_version_id_old = 1,
- .load_state_old = i440fx_load_old,
- .post_load = i440fx_post_load,
- .fields = (VMStateField []) {
- VMSTATE_PCI_DEVICE(dev, PCII440FXState),
- VMSTATE_UINT8(smm_enabled, PCII440FXState),
- VMSTATE_END_OF_LIST()
- }
-};
-
-static int i440fx_pcihost_initfn(SysBusDevice *dev)
-{
- I440FXState *s = FROM_SYSBUS(I440FXState, dev);
-
- memory_region_init_io(&s->conf_mem, &pci_host_conf_le_ops, s,
- "pci-conf-idx", 4);
- sysbus_add_io(dev, 0xcf8, &s->conf_mem);
- sysbus_init_ioports(&s->busdev, 0xcf8, 4);
-
- memory_region_init_io(&s->data_mem, &pci_host_data_le_ops, s,
- "pci-conf-data", 4);
- sysbus_add_io(dev, 0xcfc, &s->data_mem);
- sysbus_init_ioports(&s->busdev, 0xcfc, 4);
-
- return 0;
-}
-
-static int i440fx_initfn(PCIDevice *dev)
-{
- PCII440FXState *d = DO_UPCAST(PCII440FXState, dev, dev);
-
- d->dev.config[I440FX_SMRAM] = 0x02;
-
- cpu_smm_register(&i440fx_set_smm, d);
- return 0;
-}
-
-static PCIBus *i440fx_common_init(const char *device_name,
- PCII440FXState **pi440fx_state,
- int *piix3_devfn,
- ISABus **isa_bus, qemu_irq *pic,
- MemoryRegion *address_space_mem,
- MemoryRegion *address_space_io,
- ram_addr_t ram_size,
- target_phys_addr_t pci_hole_start,
- target_phys_addr_t pci_hole_size,
- target_phys_addr_t pci_hole64_start,
- target_phys_addr_t pci_hole64_size,
- MemoryRegion *pci_address_space,
- MemoryRegion *ram_memory)
-{
- DeviceState *dev;
- PCIBus *b;
- PCIDevice *d;
- I440FXState *s;
- PIIX3State *piix3;
- PCII440FXState *f;
-
- dev = qdev_create(NULL, "i440FX-pcihost");
- s = FROM_SYSBUS(I440FXState, sysbus_from_qdev(dev));
- s->address_space = address_space_mem;
- b = pci_bus_new(&s->busdev.qdev, NULL, pci_address_space,
- address_space_io, 0);
- s->bus = b;
- object_property_add_child(qdev_get_machine(), "i440fx", OBJECT(dev), NULL);
- qdev_init_nofail(dev);
-
- d = pci_create_simple(b, 0, device_name);
- *pi440fx_state = DO_UPCAST(PCII440FXState, dev, d);
- f = *pi440fx_state;
- f->system_memory = address_space_mem;
- f->pci_address_space = pci_address_space;
- f->ram_memory = ram_memory;
- memory_region_init_alias(&f->pci_hole, "pci-hole", f->pci_address_space,
- pci_hole_start, pci_hole_size);
- memory_region_add_subregion(f->system_memory, pci_hole_start,
&f->pci_hole);
- memory_region_init_alias(&f->pci_hole_64bit, "pci-hole64",
- f->pci_address_space,
- pci_hole64_start, pci_hole64_size);
- if (pci_hole64_size) {
- memory_region_add_subregion(f->system_memory, pci_hole64_start,
- &f->pci_hole_64bit);
- }
- memory_region_init_alias(&f->smram_region, "smram-region",
- f->pci_address_space, 0xa0000, 0x20000);
- memory_region_add_subregion_overlap(f->system_memory, 0xa0000,
- &f->smram_region, 1);
- memory_region_set_enabled(&f->smram_region, false);
-
- /* Xen supports additional interrupt routes from the PCI devices to
- * the IOAPIC: the four pins of each PCI device on the bus are also
- * connected to the IOAPIC directly.
- * These additional routes can be discovered through ACPI. */
- if (xen_enabled()) {
- piix3 = DO_UPCAST(PIIX3State, dev,
- pci_create_simple_multifunction(b, -1, true, "PIIX3-xen"));
- pci_bus_irqs(b, xen_piix3_set_irq, xen_pci_slot_get_pirq,
- piix3, XEN_PIIX_NUM_PIRQS);
- } else {
- piix3 = DO_UPCAST(PIIX3State, dev,
- pci_create_simple_multifunction(b, -1, true, "PIIX3"));
- pci_bus_irqs(b, piix3_set_irq, pci_slot_get_pirq, piix3,
- PIIX_NUM_PIRQS);
- }
- piix3->pic = pic;
- *isa_bus = DO_UPCAST(ISABus, qbus,
- qdev_get_child_bus(&piix3->dev.qdev, "isa.0"));
-
- *piix3_devfn = piix3->dev.devfn;
-
- ram_size = ram_size / 8 / 1024 / 1024;
- if (ram_size > 255)
- ram_size = 255;
- (*pi440fx_state)->dev.config[0x57]=ram_size;
-
- i440fx_update_memory_mappings(f);
-
- return b;
-}
-
-PCIBus *i440fx_init(PCII440FXState **pi440fx_state, int *piix3_devfn,
- ISABus **isa_bus, qemu_irq *pic,
- MemoryRegion *address_space_mem,
- MemoryRegion *address_space_io,
- ram_addr_t ram_size,
- target_phys_addr_t pci_hole_start,
- target_phys_addr_t pci_hole_size,
- target_phys_addr_t pci_hole64_start,
- target_phys_addr_t pci_hole64_size,
- MemoryRegion *pci_memory, MemoryRegion *ram_memory)
-
-{
- PCIBus *b;
-
- b = i440fx_common_init("i440FX", pi440fx_state, piix3_devfn, isa_bus, pic,
- address_space_mem, address_space_io, ram_size,
- pci_hole_start, pci_hole_size,
- pci_hole64_start, pci_hole64_size,
- pci_memory, ram_memory);
- return b;
-}
-
-/* PIIX3 PCI to ISA bridge */
-static void piix3_set_irq_pic(PIIX3State *piix3, int pic_irq)
-{
- qemu_set_irq(piix3->pic[pic_irq],
- !!(piix3->pic_levels &
- (((1ULL << PIIX_NUM_PIRQS) - 1) <<
- (pic_irq * PIIX_NUM_PIRQS))));
-}
-
-static void piix3_set_irq_level(PIIX3State *piix3, int pirq, int level)
-{
- int pic_irq;
- uint64_t mask;
-
- pic_irq = piix3->dev.config[PIIX_PIRQC + pirq];
- if (pic_irq >= PIIX_NUM_PIC_IRQS) {
- return;
- }
-
- mask = 1ULL << ((pic_irq * PIIX_NUM_PIRQS) + pirq);
- piix3->pic_levels &= ~mask;
- piix3->pic_levels |= mask * !!level;
-
- piix3_set_irq_pic(piix3, pic_irq);
-}
-
-static void piix3_set_irq(void *opaque, int pirq, int level)
-{
- PIIX3State *piix3 = opaque;
- piix3_set_irq_level(piix3, pirq, level);
-}
-
-/* irq routing is changed. so rebuild bitmap */
-static void piix3_update_irq_levels(PIIX3State *piix3)
-{
- int pirq;
-
- piix3->pic_levels = 0;
- for (pirq = 0; pirq < PIIX_NUM_PIRQS; pirq++) {
- piix3_set_irq_level(piix3, pirq,
- pci_bus_get_irq_level(piix3->dev.bus, pirq));
- }
-}
-
-static void piix3_write_config(PCIDevice *dev,
- uint32_t address, uint32_t val, int len)
-{
- pci_default_write_config(dev, address, val, len);
- if (ranges_overlap(address, len, PIIX_PIRQC, 4)) {
- PIIX3State *piix3 = DO_UPCAST(PIIX3State, dev, dev);
- int pic_irq;
- piix3_update_irq_levels(piix3);
- for (pic_irq = 0; pic_irq < PIIX_NUM_PIC_IRQS; pic_irq++) {
- piix3_set_irq_pic(piix3, pic_irq);
- }
- }
-}
-
-static void piix3_write_config_xen(PCIDevice *dev,
- uint32_t address, uint32_t val, int len)
-{
- xen_piix_pci_write_config_client(address, val, len);
- piix3_write_config(dev, address, val, len);
-}
-
-static void piix3_reset(void *opaque)
-{
- PIIX3State *d = opaque;
- uint8_t *pci_conf = d->dev.config;
-
- pci_conf[0x04] = 0x07; // master, memory and I/O
- pci_conf[0x05] = 0x00;
- pci_conf[0x06] = 0x00;
- pci_conf[0x07] = 0x02; // PCI_status_devsel_medium
- pci_conf[0x4c] = 0x4d;
- pci_conf[0x4e] = 0x03;
- pci_conf[0x4f] = 0x00;
- pci_conf[0x60] = 0x80;
- pci_conf[0x61] = 0x80;
- pci_conf[0x62] = 0x80;
- pci_conf[0x63] = 0x80;
- pci_conf[0x69] = 0x02;
- pci_conf[0x70] = 0x80;
- pci_conf[0x76] = 0x0c;
- pci_conf[0x77] = 0x0c;
- pci_conf[0x78] = 0x02;
- pci_conf[0x79] = 0x00;
- pci_conf[0x80] = 0x00;
- pci_conf[0x82] = 0x00;
- pci_conf[0xa0] = 0x08;
- pci_conf[0xa2] = 0x00;
- pci_conf[0xa3] = 0x00;
- pci_conf[0xa4] = 0x00;
- pci_conf[0xa5] = 0x00;
- pci_conf[0xa6] = 0x00;
- pci_conf[0xa7] = 0x00;
- pci_conf[0xa8] = 0x0f;
- pci_conf[0xaa] = 0x00;
- pci_conf[0xab] = 0x00;
- pci_conf[0xac] = 0x00;
- pci_conf[0xae] = 0x00;
-
- d->pic_levels = 0;
-}
-
-static int piix3_post_load(void *opaque, int version_id)
-{
- PIIX3State *piix3 = opaque;
- piix3_update_irq_levels(piix3);
- return 0;
-}
-
-static void piix3_pre_save(void *opaque)
-{
- int i;
- PIIX3State *piix3 = opaque;
-
- for (i = 0; i < ARRAY_SIZE(piix3->pci_irq_levels_vmstate); i++) {
- piix3->pci_irq_levels_vmstate[i] =
- pci_bus_get_irq_level(piix3->dev.bus, i);
- }
-}
-
-static const VMStateDescription vmstate_piix3 = {
- .name = "PIIX3",
- .version_id = 3,
- .minimum_version_id = 2,
- .minimum_version_id_old = 2,
- .post_load = piix3_post_load,
- .pre_save = piix3_pre_save,
- .fields = (VMStateField []) {
- VMSTATE_PCI_DEVICE(dev, PIIX3State),
- VMSTATE_INT32_ARRAY_V(pci_irq_levels_vmstate, PIIX3State,
- PIIX_NUM_PIRQS, 3),
- VMSTATE_END_OF_LIST()
- }
-};
-
-static int piix3_initfn(PCIDevice *dev)
-{
- PIIX3State *d = DO_UPCAST(PIIX3State, dev, dev);
-
- isa_bus_new(&d->dev.qdev, pci_address_space_io(dev));
- qemu_register_reset(piix3_reset, d);
- return 0;
-}
-
-static void piix3_class_init(ObjectClass *klass, void *data)
-{
- DeviceClass *dc = DEVICE_CLASS(klass);
- PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
-
- dc->desc = "ISA bridge";
- dc->vmsd = &vmstate_piix3;
- dc->no_user = 1,
- k->no_hotplug = 1;
- k->init = piix3_initfn;
- k->config_write = piix3_write_config;
- k->vendor_id = PCI_VENDOR_ID_INTEL;
- k->device_id = PCI_DEVICE_ID_INTEL_82371SB_0; // 82371SB PIIX3
PCI-to-ISA bridge (Step A1)
- k->class_id = PCI_CLASS_BRIDGE_ISA;
-}
-
-static TypeInfo piix3_info = {
- .name = "PIIX3",
- .parent = TYPE_PCI_DEVICE,
- .instance_size = sizeof(PIIX3State),
- .class_init = piix3_class_init,
-};
-
-static void piix3_xen_class_init(ObjectClass *klass, void *data)
-{
- DeviceClass *dc = DEVICE_CLASS(klass);
- PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
-
- dc->desc = "ISA bridge";
- dc->vmsd = &vmstate_piix3;
- dc->no_user = 1;
- k->no_hotplug = 1;
- k->init = piix3_initfn;
- k->config_write = piix3_write_config_xen;
- k->vendor_id = PCI_VENDOR_ID_INTEL;
- k->device_id = PCI_DEVICE_ID_INTEL_82371SB_0; // 82371SB PIIX3
PCI-to-ISA bridge (Step A1)
- k->class_id = PCI_CLASS_BRIDGE_ISA;
-};
-
-static TypeInfo piix3_xen_info = {
- .name = "PIIX3-xen",
- .parent = TYPE_PCI_DEVICE,
- .instance_size = sizeof(PIIX3State),
- .class_init = piix3_xen_class_init,
-};
-
-static void i440fx_class_init(ObjectClass *klass, void *data)
-{
- DeviceClass *dc = DEVICE_CLASS(klass);
- PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
-
- k->no_hotplug = 1;
- k->init = i440fx_initfn;
- k->config_write = i440fx_write_config;
- k->vendor_id = PCI_VENDOR_ID_INTEL;
- k->device_id = PCI_DEVICE_ID_INTEL_82441;
- k->revision = 0x02;
- k->class_id = PCI_CLASS_BRIDGE_HOST;
- dc->desc = "Host bridge";
- dc->no_user = 1;
- dc->vmsd = &vmstate_i440fx;
-}
-
-static TypeInfo i440fx_info = {
- .name = "i440FX",
- .parent = TYPE_PCI_DEVICE,
- .instance_size = sizeof(PCII440FXState),
- .class_init = i440fx_class_init,
-};
-
-static void i440fx_pcihost_class_init(ObjectClass *klass, void *data)
-{
- DeviceClass *dc = DEVICE_CLASS(klass);
- SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass);
-
- k->init = i440fx_pcihost_initfn;
- dc->fw_name = "pci";
- dc->no_user = 1;
-}
-
-static TypeInfo i440fx_pcihost_info = {
- .name = "i440FX-pcihost",
- .parent = TYPE_SYS_BUS_DEVICE,
- .instance_size = sizeof(I440FXState),
- .class_init = i440fx_pcihost_class_init,
-};
-
-static void i440fx_register_types(void)
-{
- type_register_static(&i440fx_info);
- type_register_static(&piix3_info);
- type_register_static(&piix3_xen_info);
- type_register_static(&i440fx_pcihost_info);
-}
-
-type_init(i440fx_register_types)
--
1.7.7.6
