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[Qemu-devel] [PATCH 4/4] Machine description as data
|
From: |
Markus Armbruster |
|
Subject: |
[Qemu-devel] [PATCH 4/4] Machine description as data |
|
Date: |
Thu, 30 Apr 2009 18:03:48 +0200 |
Signed-off-by: Markus Armbruster <address@hidden>
---
Makefile | 1 +
Makefile.target | 7 +-
dt-fdt.c | 123 +++++++
dt-host.c | 176 +++++++++
dt.c | 600 +++++++++++++++++++++++++++++++
dt.h | 150 ++++++++
hw/boards.h | 3 +
hw/pc.c | 53 ++--
hw/pcdt.c | 941 +++++++++++++++++++++++++++++++++++++++++++++++++
hw/pcidt.c | 67 ++++
hw/pcint.h | 47 +++
target-i386/machine.c | 1 +
tree.c | 285 +++++++++++++++
tree.h | 41 +++
14 files changed, 2464 insertions(+), 31 deletions(-)
create mode 100644 dt-fdt.c
create mode 100644 dt-host.c
create mode 100644 dt.c
create mode 100644 dt.h
create mode 100644 hw/pcdt.c
create mode 100644 hw/pcidt.c
create mode 100644 hw/pcint.h
create mode 100644 tree.c
create mode 100644 tree.h
diff --git a/Makefile b/Makefile
index 0f40cda..7c06e12 100644
--- a/Makefile
+++ b/Makefile
@@ -100,6 +100,7 @@ OBJS+=bt-hci-csr.o
OBJS+=buffered_file.o migration.o migration-tcp.o net.o qemu-sockets.o
OBJS+=qemu-char.o aio.o net-checksum.o savevm.o cache-utils.o
OBJS+=msmouse.o ps2.o
+OBJS+=tree.o
ifdef CONFIG_BRLAPI
OBJS+= baum.o
diff --git a/Makefile.target b/Makefile.target
index 82ada5a..7b7d77d 100644
--- a/Makefile.target
+++ b/Makefile.target
@@ -503,6 +503,10 @@ OBJS=vl.o osdep.o monitor.o pci.o loader.o isa_mmio.o
machine.o dma-helpers.o
# need to fix this properly
OBJS+=virtio.o virtio-blk.o virtio-balloon.o virtio-net.o virtio-console.o
OBJS+=fw_cfg.o
+OBJS+=dt.o dt-host.o pcidt.o
+ifdef FDT_LIBS
+OBJS+= dt-fdt.o
+endif
ifdef CONFIG_KVM
OBJS+=kvm.o kvm-all.o
endif
@@ -534,6 +538,7 @@ endif
ifdef CONFIG_OSS
LIBS += $(CONFIG_OSS_LIB)
endif
+LIBS+= $(FDT_LIBS)
SOUND_HW = sb16.o es1370.o ac97.o
ifdef CONFIG_ADLIB
@@ -588,6 +593,7 @@ OBJS+= ide.o pckbd.o vga.o $(SOUND_HW) dma.o
OBJS+= fdc.o mc146818rtc.o serial.o i8259.o i8254.o pcspk.o pc.o
OBJS+= cirrus_vga.o apic.o ioapic.o parallel.o acpi.o piix_pci.o
OBJS+= usb-uhci.o vmmouse.o vmport.o vmware_vga.o hpet.o
+OBJS+= pcdt.o
OBJS += device-hotplug.o pci-hotplug.o smbios.o
CPPFLAGS += -DHAS_AUDIO -DHAS_AUDIO_CHOICE
endif
@@ -611,7 +617,6 @@ OBJS+= ppc440.o ppc440_bamboo.o
OBJS+= ppce500_pci.o ppce500_mpc8544ds.o
ifdef FDT_LIBS
OBJS+= device_tree.o
-LIBS+= $(FDT_LIBS)
endif
ifdef CONFIG_KVM
OBJS+= kvm_ppc.o
diff --git a/dt-fdt.c b/dt-fdt.c
new file mode 100644
index 0000000..375e50a
--- /dev/null
+++ b/dt-fdt.c
@@ -0,0 +1,123 @@
+/*
+ * QEMU PC System Emulator
+ *
+ * Copyright (C) 2009 Red Hat, Inc., Markus Armbruster <address@hidden>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+/* Interfacing with FDT */
+
+/*
+ * Note: translation to FDT loses the association between
+ * configuration tree nodes and devices.
+ */
+
+#include <libfdt.h>
+#include "dt.h"
+
+static int dt_fdt_chk(int res);
+static void dt_subtree_to_fdt(const tree *conf, void *fdt);
+
+static void *dt_tree_to_fdt(const tree *conf)
+{
+ int sz = 1024 * 1024; /* FIXME arbitrary limit */
+ void *fdt = qemu_malloc(sz);
+
+ dt_fdt_chk(fdt_create(fdt, sz));
+ dt_subtree_to_fdt(conf, fdt);
+ dt_fdt_chk(fdt_finish(fdt));
+ return fdt;
+}
+
+static void dt_subtree_to_fdt(const tree *conf, void *fdt)
+{
+ tree_prop *prop;
+ tree *child;
+ const void *pv;
+ size_t sz;
+
+ dt_fdt_chk(fdt_begin_node(fdt, tree_node_name(conf)));
+ TREE_FOREACH_PROP(prop, conf) {
+ pv = tree_prop_value(prop, &sz);
+ dt_fdt_chk(fdt_property(fdt, tree_prop_name(prop), pv, sz));
+ }
+ TREE_FOREACH_CHILD(child, conf)
+ dt_subtree_to_fdt(child, fdt);
+ dt_fdt_chk(fdt_end_node(fdt));
+}
+
+static tree *dt_fdt_to_tree(const void *fdt)
+{
+ int offs, next, depth;
+ uint32_t tag;
+ struct fdt_property *prop;
+ tree *stack[32]; /* FIXME arbitrary limit */
+
+ stack[0] = NULL; /* "parent" of root */
+ next = depth = 0;
+
+ for (;;) {
+ offs = next;
+ tag = fdt_next_tag(fdt, offs, &next);
+ switch (tag) {
+ case FDT_PROP:
+ /*
+ * libfdt apparently doesn't provide a way to get property
+ * by offset, do it by hand
+ */
+ assert(0 < depth && depth < ARRAY_SIZE(stack));
+ prop = (void *)(const char *)fdt + fdt_off_dt_struct(fdt) + offs;
+ tree_put_prop(stack[depth],
+ fdt_string(fdt, fdt32_to_cpu(prop->nameoff)),
+ prop->data,
+ fdt32_to_cpu(prop->len));
+ case FDT_NOP:
+ break;
+ case FDT_BEGIN_NODE:
+ depth++;
+ assert(0 < depth && depth < ARRAY_SIZE(stack));
+ stack[depth] = tree_new_child(stack[depth-1],
+ fdt_get_name(fdt, offs, NULL),
+ NULL);
+ break;
+ case FDT_END_NODE:
+ depth--;
+ break;
+ case FDT_END:
+ dt_fdt_chk(next);
+ return stack[1];
+ }
+ }
+}
+
+static int dt_fdt_chk(int res)
+{
+ if (res < 0) {
+ fprintf(stderr, "%s\n", fdt_strerror(res)); /* FIXME cryptic */
+ exit(1);
+ }
+ return res;
+}
+
+void dt_fdt_test(tree *conf)
+{
+ void *fdt;
+
+ fdt = dt_tree_to_fdt(conf);
+ conf = dt_fdt_to_tree(fdt);
+ tree_print(conf);
+ free(fdt);
+}
diff --git a/dt-host.c b/dt-host.c
new file mode 100644
index 0000000..eec8dc9
--- /dev/null
+++ b/dt-host.c
@@ -0,0 +1,176 @@
+/*
+ * QEMU PC System Emulator
+ *
+ * Copyright (C) 2009 Red Hat, Inc., Markus Armbruster <address@hidden>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+/* Host Configuration */
+
+#include <assert.h>
+#include "block.h"
+#include "dt.h"
+
+/* TODO stupid arbitrary limit */
+#define MAX_MEM (MAX_OPTION_ROMS + 4)
+
+typedef struct dt_host_memory {
+ dt_mem_loader loader;
+ target_phys_addr_t addr;
+ ram_addr_t size;
+ const void *arg;
+} dt_host_memory;
+
+struct dt_host {
+ /* driver table */
+ const dt_driver *drvtab;
+ /* connection NIC <-> VLAN */
+ int nics;
+ tree *nic[MAX_NICS];
+ VLANState *nic_vlan[MAX_NICS];
+ /* connection drive <-> block driver state */
+ int drives;
+ tree *drive[MAX_DRIVES];
+ BlockDriverState *drive_state[MAX_DRIVES];
+ /* initial memory contents */
+ int mems;
+ dt_host_memory mem[MAX_MEM];
+ /* the rest isn't configuration, it's derived from other stuff */
+ int virtio_buses;
+};
+
+dt_host *dt_create_host(const dt_driver *drvtab)
+{
+ dt_host *host = qemu_mallocz(sizeof(dt_host));
+ host->drvtab = drvtab;
+ return host;
+}
+
+const dt_driver *dt_driver_by_name(dt_host *host, const char *name)
+{
+ const dt_driver *drvtab = host->drvtab;
+ int i;
+
+ for (i = 0; drvtab[i].name; i++) {
+ if (!strcmp(name, drvtab[i].name))
+ return &drvtab[i];
+ }
+ return NULL;
+}
+
+void dt_attach_nic(dt_host *host, tree *nic, VLANState *vlan)
+{
+ assert(host->nics < MAX_NICS);
+ host->nic[host->nics] = nic;
+ host->nic_vlan[host->nics] = vlan;
+ host->nics++;
+}
+
+VLANState *dt_find_vlan(tree *conf, dt_host *host)
+{
+ int i;
+
+ for (i = 0; i < host->nics; i++) {
+ if (host->nic[i] == conf)
+ return host->nic_vlan[i];
+ }
+ return NULL;
+}
+
+void dt_attach_drive(dt_host *host, tree *node, BlockDriverState *state)
+{
+ assert(host->drives < MAX_DRIVES);
+ host->drive[host->drives] = node;
+ host->drive_state[host->drives] = state;
+ host->drives++;
+}
+
+void dt_find_drives(tree *conf, dt_host *host,
+ BlockDriverState *drive[], int n)
+{
+ int i, unit;
+
+ memset(drive, 0, n * sizeof(drive[0]));
+
+ for (i = 0; i < host->drives; i++) {
+ if (tree_parent(host->drive[i]) != conf)
+ continue;
+ unit = dt_get_unit(dt_device_of(host->drive[i]));
+ assert(unit < n && !drive[unit]);
+ drive[unit] = host->drive_state[i];
+ }
+}
+
+void dt_config_mem(dt_host *host, dt_mem_loader loader,
+ target_phys_addr_t addr, ram_addr_t size, const void *arg)
+{
+ assert(host->mems < MAX_MEM);
+ host->mem[host->mems].loader = loader;
+ host->mem[host->mems].addr = addr;
+ host->mem[host->mems].size = size;
+ host->mem[host->mems].arg = arg;
+ host->mems++;
+}
+
+static void dt_init_mem(dt_host *host)
+{
+ dt_host_memory *p;
+
+ for (p = host->mem; p < host->mem + host->mems; p++)
+ p->loader(p->addr, p->size, p->arg);
+}
+
+void dt_image_loader(target_phys_addr_t addr, ram_addr_t size, const void *arg)
+{
+ if (load_image_targphys(arg, addr, size) < 0) {
+ fprintf(stderr, "qemu: could not load image '%s'\n", (char *)arg);
+ exit(1);
+ }
+}
+
+int dt_alloc_virtio_bus(dt_host *host)
+{
+ return host->virtio_buses++;
+}
+
+void dt_host_init(dt_host *host)
+{
+ dt_init_mem(host);
+}
+
+void dt_print_host_config(dt_host *host)
+{
+ char buf[1024];
+ int i;
+
+ for (i = 0; i < host->nics; i++) {
+ if (!host->nic[i])
+ continue;
+ tree_path(host->nic[i], buf, sizeof(buf));
+ printf("nic#%d\tvlan %-4d\t%s\n",
+ i, host->nic_vlan[i]->id, buf);
+ }
+
+ for (i = 0; i < host->drives; i++) {
+ tree_path(host->drive[i], buf, sizeof(buf));
+ printf("drive#%d\t%-15s %s\n",
+ i, bdrv_get_device_name(host->drive_state[i]), buf);
+ }
+
+ for (i = 0; i < host->mems; i++)
+ printf("image\t" TARGET_FMT_plx " %08lx\n",
+ host->mem[i].addr, (unsigned long)host->mem[i].size);
+}
diff --git a/dt.c b/dt.c
new file mode 100644
index 0000000..1353f5c
--- /dev/null
+++ b/dt.c
@@ -0,0 +1,600 @@
+/*
+ * QEMU PC System Emulator
+ *
+ * Copyright (C) 2009 Red Hat, Inc., Markus Armbruster <address@hidden>
+ * Copyright (c) 2003-2004 Fabrice Bellard
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+/*
+ * Configure and build a machine from configuration data
+ *
+ * This is generic, device-independent code driven by device-dependent
+ * configuration data, talking to devices through an abstract device
+ * interface.
+ */
+
+#include <assert.h>
+#include "dt.h"
+
+/* Forward declarations */
+static void dt_parse_prop(dt_device *dev, tree_prop *prop);
+
+
+/* Device Interface */
+
+dt_device *dt_device_of(tree *conf)
+{
+ return tree_get_user(conf);
+}
+
+dt_device *dt_parent_device(dt_device *dev)
+{
+ tree *p = tree_parent(dev->conf);
+
+ return p ? dt_device_of(p) : NULL;
+}
+
+dt_device *dt_root(dt_device *dev)
+{
+ tree *p, *r;
+
+ p = dev->conf;
+ do r = p; while ((p = tree_parent(p)));
+
+ return dt_device_of(r);
+}
+
+static dt_device *dt_do_find_bus(tree *conf, dt_bus_type bus_type, int *skip)
+{
+ dt_device *dev;
+ tree *child;
+
+ dev = dt_device_of(conf);
+ if (dev->drv->bus_type == bus_type && (*skip)-- == 0)
+ return dev;
+
+ TREE_FOREACH_CHILD(child, conf) {
+ dev = dt_do_find_bus(child, bus_type, skip);
+ if (dev)
+ return dev;
+ }
+
+ return NULL;
+}
+
+dt_device *dt_find_bus(tree *conf, dt_bus_type bus_type, int busno)
+{
+ return dt_do_find_bus(conf, bus_type, &busno);
+}
+
+PCIBus *dt_get_pcibus(dt_device *dev)
+{
+ dt_device *bus = dt_parent_device(dev);
+
+ return bus->drv->get_pcibus(bus);
+}
+
+int dt_get_unit(dt_device *dev)
+{
+ return dev->drv->get_unit(dev);
+}
+
+static dt_device *dt_int_parent(dt_device *dev)
+{
+ dt_device *res;
+
+ if (dev->int_parent)
+ return dt_device_of(dev->int_parent);
+
+ res = dt_parent_device(dev);
+ return res && res->drv->get_int ? res : NULL;
+}
+
+qemu_irq *dt_get_int(dt_device *dev, int n)
+{
+ dt_device *int_parent = dt_int_parent(dev);
+ int nirq;
+ qemu_irq *res;
+
+ if (!int_parent)
+ return NULL;
+
+ res = int_parent->drv->get_int(int_parent, &nirq);
+ assert(n <= nirq);
+ return res;
+}
+
+static dt_device *dt_new_device(tree *conf, const dt_driver *drv)
+{
+ dt_device *dev;
+ tree_prop *prop;
+
+ dev = qemu_malloc(sizeof(*dev));
+ dev->conf = conf;
+ dev->drv = drv;
+ dev->int_parent = NULL;
+ TAILQ_INIT(&dev->int_children);
+ dev->priv = qemu_mallocz(drv->privsz);
+ tree_put_user(conf, dev);
+
+ TREE_FOREACH_PROP(prop, conf)
+ dt_parse_prop(dev, prop);
+
+ return dev;
+}
+
+static dt_device *dt_create(tree *conf, dt_host *host)
+{
+ const dt_driver *drv;
+ dt_device *dev;
+ tree *child;
+
+ drv = dt_driver_by_name(host, tree_node_name(conf));
+ if (!drv) {
+ fprintf(stderr, "No driver for device %s\n",
+ tree_node_name(conf));
+ exit(1);
+ }
+
+ assert((drv->bus_type == DT_BUS_PCI) == (drv->get_pcibus != NULL));
+
+ dev = dt_new_device(conf, drv);
+
+ TREE_FOREACH_CHILD(child, conf)
+ dt_create(child, host);
+
+ return dev;
+}
+
+static void dt_config(dt_device *dev, dt_host *host)
+{
+ dt_device *bus = dt_parent_device(dev);
+ dt_device *int_parent = dt_int_parent(dev);
+ dt_device *up;
+ tree *child;
+
+ if (dev->drv->parent_bus_type == DT_BUS_NONE
+ ? bus != NULL
+ : bus == NULL || bus->drv->bus_type != dev->drv->parent_bus_type) {
+ fprintf(stderr, "Device %s is not on a suitable bus\n",
+ dev->drv->name);
+ exit(1);
+ }
+
+ if (dev->int_parent) {
+ if (!int_parent->drv->get_int) {
+ fprintf(stderr, "Device %s has an invalid interrupt-parent\n",
+ dev->drv->name);
+ exit(1);
+ }
+ for (up = int_parent; up; up = dt_int_parent(up)) {
+ if (up == dev) {
+ fprintf(stderr, "Device %s is its own interrupt ancestor\n",
+ dev->drv->name);
+ exit(1);
+ }
+ }
+ }
+
+ if (int_parent)
+ TAILQ_INSERT_TAIL(&int_parent->int_children, dev, int_siblings);
+ else if (dev->drv->get_int)
+ TAILQ_INSERT_TAIL(&dt_root(dev)->int_children, dev, int_siblings);
+
+ if (dev->drv->config)
+ dev->drv->config(dev, host);
+
+ TREE_FOREACH_CHILD(child, dev->conf)
+ dt_config(dt_device_of(child), host);
+}
+
+static void dt_int_init(dt_device *dev)
+{
+ dt_device *child;
+
+ if (dev->drv->int_init)
+ dev->drv->int_init(dev);
+
+ TAILQ_FOREACH(child, &dev->int_children, int_siblings)
+ dt_int_init(child);
+}
+
+static void dt_init(dt_device *dev)
+{
+ tree *child;
+
+ if (dev->drv->init)
+ dev->drv->init(dev);
+
+ TREE_FOREACH_CHILD(child, dev->conf)
+ dt_init(dt_device_of(child));
+}
+
+static void dt_start(dt_device *dev)
+{
+ tree *child;
+
+ if (dev->drv->start)
+ dev->drv->start(dev);
+
+ TREE_FOREACH_CHILD(child, dev->conf)
+ dt_start(dt_device_of(child));
+}
+
+void dt_init_machine(dt_device *root, dt_host *host)
+{
+ dt_int_init(root);
+ dt_init(root);
+ dt_host_init(host);
+ dt_start(root);
+}
+
+
+/* Device properties */
+
+static const dt_prop_spec *bus_prop_spec[DT_BUS_NUM] = {
+ [DT_BUS_PCI] = dt_bus_prop_spec_pci,
+};
+
+static const dt_prop_spec *dt_prop_spec_by_name(const dt_prop_spec *prop_spec,
+ const char *name)
+{
+ const dt_prop_spec *spec;
+
+ for (spec = prop_spec; spec && spec->name; spec++) {
+ if (!strcmp(spec->name, name))
+ return spec;
+ }
+ return NULL;
+}
+
+static void dt_parse_prop(dt_device *dev, tree_prop *prop)
+{
+ const char *name = tree_prop_name(prop);
+ size_t size;
+ const char *val = tree_prop_value(prop, &size);
+ const dt_prop_spec *spec;
+
+ spec = dt_prop_spec_by_name(dev->drv->prop_spec, name);
+
+ if (!spec)
+ spec = dt_prop_spec_by_name(bus_prop_spec[dev->drv->parent_bus_type],
+ name);
+
+ if (!spec && !strcmp(name, "interrupt-parent")) {
+ dev->int_parent = tree_node_by_name(dev->conf, val);
+ return;
+ }
+
+ if (!spec) {
+ fprintf(stderr, "A %s device has no property %s\n",
+ dev->drv->name, name);
+ exit(1);
+ }
+
+ if (spec->parse) {
+ if (!val) {
+ fprintf(stderr, "Property %s of device %s needs a value\n",
+ name, dev->drv->name);
+ exit(1);
+ }
+ if (memchr(val, 0, size) != val + size - 1
+ || spec->parse((char *)dev->priv + spec->offs, val, spec) < 0) {
+ fprintf(stderr, "Bad value %.*s for property %s of device %s\n",
+ size, val, name, dev->drv->name);
+ exit(1);
+ }
+ } else {
+ if (val) {
+ fprintf(stderr, "Property %s of device %s doesn't take a value\n",
+ name, dev->drv->name);
+ exit(1);
+ }
+ assert(spec->size == sizeof(int));
+ *(int *)((char *)dev->priv + spec->offs) = 1;
+ }
+}
+
+int dt_parse_string(void *dst, const char *src, const dt_prop_spec *spec)
+{
+ assert(spec->size == sizeof(char *));
+ *(const char **)dst = src;
+ return 0;
+}
+
+int dt_parse_int(void *dst, const char *src, const dt_prop_spec *spec)
+{
+ char *ep;
+ long val;
+
+ assert(spec->size == sizeof(int));
+ errno = 0;
+ val = strtol(src, &ep, 0);
+ if (*ep || ep == src || errno || (int)val != val)
+ return -1;
+ *(int *)dst = val;
+ return 0;
+}
+
+int dt_parse_ram_addr_t(void *dst, const char *src, const dt_prop_spec *spec)
+{
+ char *ep;
+ unsigned long val;
+
+ assert(spec->size == sizeof(ram_addr_t));
+ errno = 0;
+ val = strtoul(src, &ep, 0);
+ if (*ep || ep == src || errno || (ram_addr_t)val != val)
+ return -1;
+ *(ram_addr_t *)dst = val;
+ return 0;
+}
+
+int dt_parse_target_phys_addr_t(void *dst, const char *src,
+ const dt_prop_spec *spec)
+{
+ char *ep;
+ unsigned long long val;
+
+ assert(spec->size == sizeof(target_phys_addr_t));
+ errno = 0;
+ val = strtoull(src, &ep, 0);
+ if (*ep || ep == src || errno || (target_phys_addr_t)val != val)
+ return -1;
+ *(target_phys_addr_t *)dst = val;
+ return 0;
+}
+
+int dt_parse_macaddr(void *dst, const char *src, const dt_prop_spec *spec)
+{
+ assert(spec->size == 6);
+ if (parse_macaddr(dst, src) < 0)
+ return -1;
+ return 0;
+}
+
+
+/* Dynamic Devices */
+
+static void dt_add_dyn_dev(tree *conf, dt_host *host, tree *node, int busno)
+{
+ dt_device *dev = dt_create(node, host);
+ dt_device *bus = dt_find_bus(conf, dev->drv->parent_bus_type, busno);
+
+ if (!bus) {
+ fprintf(stderr, "No suitable bus for device %s\n", dev->drv->name);
+ exit(1);
+ }
+
+ tree_insert(bus->conf, node);
+}
+
+static void dt_add_vga(tree *conf, dt_host *host,
+ const char *model, int vga_ram_size)
+{
+ tree *node = tree_new_child(NULL, "vga", NULL);
+
+ tree_put_propf(node, "model", "%s", model);
+ tree_put_propf(node, "ram", "%#x", vga_ram_size);
+ dt_add_dyn_dev(conf, host, node, 0);
+}
+
+static void dt_add_virtio_console(tree *conf, dt_host *host, int index)
+{
+ tree *node = tree_new_child(NULL, "virtio-console", NULL);
+
+ tree_put_propf(node, "index", "%d", index);
+ dt_add_dyn_dev(conf, host, node, 0);
+}
+
+static void dt_add_nic(tree *conf, dt_host *host, NICInfo *n)
+{
+ tree *node = tree_new_child(NULL, "nic", NULL);
+
+ tree_put_propf(node, "mac", "%02x:%02x:%02x:%02x:%02x:%02x",
+ n->macaddr[0], n->macaddr[1], n->macaddr[2],
+ n->macaddr[3], n->macaddr[4], n->macaddr[5]);
+ tree_put_propf(node, "model", "%s",
+ n->model ? n->model : "ne2k_pci");
+ if (n->name)
+ tree_put_propf(node, "name", "%s", n->name);
+ dt_add_dyn_dev(conf, host, node, 0);
+ dt_attach_nic(host, node, n->vlan);
+}
+
+static void dt_add_scsi(tree *conf, dt_host *host, int busno)
+{
+ tree *node = tree_new_child(NULL, "scsi", NULL);
+
+ dt_add_dyn_dev(conf, host, node, 0);
+ assert(dt_find_bus(conf, DT_BUS_SCSI, busno)->conf == node);
+}
+
+static void dt_add_virtio_block(tree *conf, dt_host *host, int busno)
+{
+ tree *node = tree_new_child(NULL, "virtio-block", NULL);
+
+ dt_add_dyn_dev(conf, host, node, 0);
+ assert(dt_find_bus(conf, DT_BUS_VIRTIO, busno)->conf == node);
+}
+
+static const char *block_if_name[] = {
+ [IF_IDE] = "ide",
+ [IF_SCSI] = "scsi",
+ [IF_FLOPPY] = "floppy",
+ [IF_PFLASH] = "pflash",
+ [IF_MTD] = "mtd",
+ [IF_SD] = "sd",
+ [IF_VIRTIO] = "virtio",
+};
+
+static void dt_do_add_drive(tree *conf, dt_host *host,
+ int bus_type, int busno, int unit,
+ BlockDriverState *bdrv)
+{
+ char buf[32];
+ tree *node;
+
+ snprintf(buf, sizeof(buf), "%s-drive", block_if_name[bus_type]);
+ node = tree_new_child(NULL, strdup(buf), NULL);
+ tree_put_propf(node, "unit", "%d", unit);
+ dt_add_dyn_dev(conf, host, node, busno);
+ dt_attach_drive(host, node, bdrv);
+}
+
+static void dt_add_drive(tree *conf, dt_host *host, DriveInfo *d)
+{
+ switch (d->type) {
+ case IF_IDE:
+ /* hack to hang all IDE drives off the same node for now */
+ dt_do_add_drive(conf, host,
+ d->type, 0, d->bus * MAX_IDE_DEVS + d->unit, d->bdrv);
+ break;
+ case IF_SCSI:
+ case IF_FLOPPY:
+ dt_do_add_drive(conf, host,
+ d->type, d->bus, d->unit, d->bdrv);
+ break;
+ case IF_VIRTIO:
+ /* See comment in on virtio block in dt_add_dyn_devs() */
+ dt_do_add_drive(conf, host,
+ d->type, dt_alloc_virtio_bus(host), 0, d->bdrv);
+ break;
+ default:
+ /* TODO implement */
+ fprintf(stderr, "Ignoring unimplemented drive %s\n",
+ drives_opt[d->drive_opt_idx].opt);
+ break;
+ }
+}
+
+void dt_add_dyn_devs(tree *conf, dt_host *host, int vga_ram_size)
+{
+ int i, max_bus, busno;
+
+ /* VGA */
+ if (cirrus_vga_enabled || vmsvga_enabled || std_vga_enabled) {
+ dt_add_vga(conf, host,
+ cirrus_vga_enabled ? "cirrus"
+ : vmsvga_enabled ? "vms" : "std",
+ vga_ram_size);
+ }
+
+ /* Virtio consoles */
+ for (i = 0; i < MAX_VIRTIO_CONSOLES; i++) {
+ if (virtcon_hds[i])
+ dt_add_virtio_console(conf, host, i);
+ }
+
+ /* NICs */
+ for(i = 0; i < nb_nics; i++)
+ dt_add_nic(conf, host, &nd_table[i]);
+
+ /*
+ * SCSI controllers
+ *
+ * This creates all controllers 0..max_bus, whether they have
+ * drives or not. Matches pc.c behavior.
+ */
+ max_bus = drive_get_max_bus(IF_SCSI);
+ for (i = 0; i <= max_bus; i++)
+ dt_add_scsi(conf, host, i);
+
+ /*
+ * Virtio block controllers
+ *
+ * Each virtio drive is its own PCI device. Since the device tree
+ * should reflect that, we give each device on its own virtio
+ * block controller node.
+ *
+ * DriveInfo's bus and unit are a mess. The user can specify any
+ * bus or unit number. An unspecified bus number defaults to
+ * zero, and an unspecified unit number defaults to the first
+ * unused one (see drive_init()). pc.c silently ignores all
+ * virtio drives with non-zero bus number, and all drives on bus
+ * zero after the first unused unit number. Instead of
+ * replicating that questionable behavior, simply ignore bus and
+ * unit for these drives.
+ */
+ busno = 0;
+ for (i = 0; i < nb_drives; i++) {
+ if (drives_table[i].type == IF_VIRTIO)
+ dt_add_virtio_block(conf, host, busno++);
+ }
+
+ /* Drives */
+ for (i = 0; i < nb_drives; i++)
+ dt_add_drive(conf, host, &drives_table[i]);
+}
+
+void dt_add_memory(tree *conf, dt_host *host,
+ target_phys_addr_t addr, ram_addr_t sz, int ro)
+{
+ tree *node = tree_new_child(NULL, "memory", NULL);
+
+ tree_put_propf(node, "address", "0x" TARGET_FMT_plx, addr);
+ tree_put_propf(node, "size", "%#lx", (unsigned long)sz);
+ if (ro)
+ tree_put_prop(node, "read-only", NULL, 0);
+ dt_add_dyn_dev(conf, host, node, 0);
+}
+
+
+/* Create a configuration */
+
+#if 0 /* TODO implement */
+tree *dt_read_config(const char *name)
+{
+}
+#endif
+
+static void
+dt_int_tree_print(dt_device *dev, int indent)
+{
+ const char *name = tree_node_name(dev->conf);
+ dt_device *child;
+
+ printf("%*s%s {\n", indent, "", *name ? name : "/");
+ TAILQ_FOREACH(child, &dev->int_children, int_siblings)
+ dt_int_tree_print(child, indent + 4);
+ printf("%*s};\n", indent, "");
+}
+
+dt_device *dt_create_machine(tree *conf, dt_host *host, const char *cpu_model)
+{
+ tree *node;
+
+ tree_print(conf);
+
+ node = tree_node_by_name(conf, "/cpus");
+ tree_put_propf(node, "num", "%d", smp_cpus);
+ if (cpu_model)
+ tree_put_propf(node, "model", "%s", cpu_model);
+
+ return dt_create(conf, host);
+}
+
+void dt_config_machine(dt_device *root, dt_host *host)
+{
+ dt_config(root, host);
+
+ dt_print_host_config(host);
+ tree_print(root->conf);
+ dt_int_tree_print(root, 0);
+
+ dt_fdt_test(root->conf);
+}
diff --git a/dt.h b/dt.h
new file mode 100644
index 0000000..003d8d1
--- /dev/null
+++ b/dt.h
@@ -0,0 +1,150 @@
+#ifndef DT_H
+#define DT_H
+
+#include "sysemu.h"
+#include "net.h"
+#include "tree.h"
+
+typedef struct dt_host dt_host;
+typedef struct dt_device dt_device;
+typedef struct dt_driver dt_driver;
+typedef struct dt_prop_spec dt_prop_spec;
+typedef struct dt_bus_options dt_bus_options;
+
+
+/* Host Configuration */
+
+typedef void (*dt_mem_loader)(target_phys_addr_t, ram_addr_t, const void *);
+
+dt_host *dt_create_host(const dt_driver *drvtab);
+const dt_driver *dt_driver_by_name(dt_host *host, const char *name);
+void dt_attach_nic(dt_host *host, tree *nic, VLANState *vlan);
+VLANState *dt_find_vlan(tree *conf, dt_host *host);
+void dt_attach_drive(dt_host *host, tree *node, BlockDriverState *state);
+void dt_find_drives(tree *conf, dt_host *host,
+ BlockDriverState *drive[], int n);
+void dt_config_mem(dt_host *host, dt_mem_loader loader,
+ target_phys_addr_t addr, ram_addr_t size, const void *);
+void dt_image_loader(target_phys_addr_t addr, ram_addr_t size, const void *);
+int dt_alloc_virtio_bus(dt_host *host);
+void dt_host_init(dt_host *host);
+void dt_print_host_config(dt_host *host);
+
+
+/* Device Interface */
+
+/*
+ * Device life cycle:
+ *
+ * 1. Configuration: config() method runs after parent's. It should
+ * initialize the device's private data from its configuration
+ * sub-tree. It may edit the configuration sub-tree. Private data is
+ * zeroed before config() runs.
+ *
+ * 2. Initialization: int_init() method runs after interrupt parent's.
+ * Then init() method runs after parent's. Neither should touch the
+ * configuration tree.
+ *
+ * 3. Start: start() method runs, order is unspecified.
+ *
+ * Error handling in these driver methods: print to stderr and exit
+ * the program unsuccessfully.
+ *
+ * There is no device shutdown protocol yet.
+ */
+
+struct dt_device {
+ tree *conf; /* configuration sub-tree */
+ const dt_driver *drv; /* device driver */
+ tree *int_parent; /* interrupt parent if != tree_parent(conf) */
+ TAILQ_HEAD(, dt_device) int_children;
+ TAILQ_ENTRY(dt_device) int_siblings;
+ void *priv; /* device private data */
+};
+
+typedef enum dt_bus_type {
+ DT_BUS_NONE, DT_BUS_ROOT, DT_BUS_PCI, DT_BUS_ISA, DT_BUS_IDE,
+ DT_BUS_SCSI, DT_BUS_FLOPPY, DT_BUS_VIRTIO, DT_BUS_NUM
+} dt_bus_type;
+
+struct dt_driver {
+ const char *name;
+ size_t privsz; /* size of device private data */
+ const dt_prop_spec *prop_spec; /* recognized conf node properties */
+ dt_bus_type bus_type, parent_bus_type;
+ /* live cycle methods */
+ void (*config)(dt_device *, dt_host *);
+ void (*int_init)(dt_device *);
+ void (*init)(dt_device *);
+ void (*start)(dt_device *);
+ /* def'd iff device is a PCI bus, may return NULL until after init() */
+ PCIBus *(*get_pcibus)(dt_device *);
+ /* optional, always available */
+ int (*get_unit)(dt_device *);
+ /* def'd iff is an int. ctrlr., may return NULL until after int_init() */
+ qemu_irq *(*get_int)(dt_device *, int *);
+};
+
+typedef struct dt_pcidevice {
+ int devfn;
+} dt_pcidevice;
+
+dt_device *dt_device_of(tree *conf);
+dt_device *dt_parent_device(dt_device *dev);
+dt_device *dt_root(dt_device *dev);
+dt_device *dt_find_bus(tree *conf, dt_bus_type bus_type, int busno);
+PCIBus *dt_get_pcibus(dt_device *dev);
+int dt_get_unit(dt_device *dev);
+qemu_irq *dt_get_int(dt_device *dev, int n);
+
+tree *dt_read_config(const char *name);
+dt_device *dt_create_machine(tree *conf, dt_host *host, const char *cpu_model);
+void dt_config_machine(dt_device *root, dt_host *host);
+void dt_add_dyn_devs(tree *conf, dt_host *host, int vga_ram_size);
+void dt_add_memory(tree *conf, dt_host *host,
+ target_phys_addr_t addr, ram_addr_t sz, int ro);
+void dt_init_machine(dt_device *root, dt_host *host);
+
+
+/* Device properties */
+
+/*
+ * This is for parsing configuration tree node properties into device
+ * private data.
+ */
+
+struct dt_prop_spec {
+ const char *name;
+ ptrdiff_t offs; /* offset in device private data */
+ size_t size; /* size there, for sanity checking */
+ int (*parse)(void *, const char *, const dt_prop_spec *);
+};
+
+#define DT_PROP_SPEC_INIT(name, strty, member, fmt) \
+ { name, offsetof(strty, member), sizeof(((strty *)0)->member), \
+ dt_parse_##fmt }
+#define DT_PROP_SPEC_SENTINEL() { NULL, 0, 0, NULL }
+
+/* Canned property parse methods */
+#define dt_parse_void NULL
+int dt_parse_string(void *dst, const char *src, const dt_prop_spec *spec);
+int dt_parse_int(void *dst, const char *src, const dt_prop_spec *spec);
+int dt_parse_ram_addr_t(void *dst, const char *src, const dt_prop_spec *spec);
+int dt_parse_target_phys_addr_t(void *dst, const char *src,
+ const dt_prop_spec *spec);
+int dt_parse_macaddr(void *dst, const char *src, const dt_prop_spec *spec);
+int dt_parse_pci_unitaddr(void *dst, const char *src, const dt_prop_spec
*spec);
+
+/* Bus-specific device properties */
+extern const dt_prop_spec dt_bus_prop_spec_pci[];
+
+
+/* Interfacing with FDT */
+
+#ifdef HAVE_FDT
+void dt_fdt_test(tree *conf);
+#else
+static inline void dt_fdt_test(tree *conf) { }
+#endif
+
+#endif
diff --git a/hw/boards.h b/hw/boards.h
index 5611d2c..8f56b5f 100644
--- a/hw/boards.h
+++ b/hw/boards.h
@@ -32,6 +32,9 @@ extern QEMUMachine axisdev88_machine;
extern QEMUMachine pc_machine;
extern QEMUMachine isapc_machine;
+/* pcdt.c */
+extern QEMUMachine pcdt_machine;
+
/* xen_machine.c */
extern QEMUMachine xenpv_machine;
diff --git a/hw/pc.c b/hw/pc.c
index a9a39a9..f591919 100644
--- a/hw/pc.c
+++ b/hw/pc.c
@@ -38,42 +38,35 @@
#include "virtio-console.h"
#include "hpet_emul.h"
#include "smbios.h"
+#include "pcint.h"
/* output Bochs bios info messages */
//#define DEBUG_BIOS
-#define BIOS_FILENAME "bios.bin"
-#define VGABIOS_FILENAME "vgabios.bin"
-#define VGABIOS_CIRRUS_FILENAME "vgabios-cirrus.bin"
-
-#define PC_MAX_BIOS_SIZE (4 * 1024 * 1024)
-
/* Leave a chunk of memory at the top of RAM for the BIOS ACPI tables. */
#define ACPI_DATA_SIZE 0x10000
#define BIOS_CFG_IOPORT 0x510
#define FW_CFG_ACPI_TABLES (FW_CFG_ARCH_LOCAL + 0)
#define FW_CFG_SMBIOS_ENTRIES (FW_CFG_ARCH_LOCAL + 1)
-#define MAX_IDE_BUS 2
-
static RTCState *rtc_state;
static PITState *pit;
static IOAPICState *ioapic;
-static PCIDevice *i440fx_state;
+PCIDevice *i440fx_state;
-static void ioport80_write(void *opaque, uint32_t addr, uint32_t data)
+void ioport80_write(void *opaque, uint32_t addr, uint32_t data)
{
}
/* MSDOS compatibility mode FPU exception support */
-static qemu_irq ferr_irq;
+qemu_irq ferr_irq;
/* XXX: add IGNNE support */
void cpu_set_ferr(CPUX86State *s)
{
qemu_irq_raise(ferr_irq);
}
-static void ioportF0_write(void *opaque, uint32_t addr, uint32_t data)
+void ioportF0_write(void *opaque, uint32_t addr, uint32_t data)
{
qemu_irq_lower(ferr_irq);
}
@@ -122,7 +115,7 @@ int cpu_get_pic_interrupt(CPUState *env)
return intno;
}
-static void pic_irq_request(void *opaque, int irq, int level)
+void pic_irq_request(void *opaque, int irq, int level)
{
CPUState *env = first_cpu;
@@ -204,7 +197,7 @@ static int boot_device2nibble(char boot_device)
/* copy/pasted from cmos_init, should be made a general function
and used there as well */
-static int pc_boot_set(void *opaque, const char *boot_device)
+int pc_boot_set(void *opaque, const char *boot_device)
{
Monitor *mon = cur_mon;
#define PC_MAX_BOOT_DEVICES 3
@@ -231,10 +224,10 @@ static int pc_boot_set(void *opaque, const char
*boot_device)
}
/* hd_table must contain 4 block drivers */
-static void cmos_init(RTCState *s,
- ram_addr_t ram_size, ram_addr_t above_4g_mem_size,
- const char *boot_device, BlockDriverState **hd_table,
- int fd0, int fd1)
+void cmos_init(RTCState *s,
+ ram_addr_t ram_size, ram_addr_t above_4g_mem_size,
+ const char *boot_device, BlockDriverState **hd_table,
+ int fd0, int fd1)
{
int nbds, bds[3] = { 0, };
int val;
@@ -364,13 +357,13 @@ int ioport_get_a20(void)
return ((first_cpu->a20_mask >> 20) & 1);
}
-static void ioport92_write(void *opaque, uint32_t addr, uint32_t val)
+void ioport92_write(void *opaque, uint32_t addr, uint32_t val)
{
ioport_set_a20((val >> 1) & 1);
/* XXX: bit 0 is fast reset */
}
-static uint32_t ioport92_read(void *opaque, uint32_t addr)
+uint32_t ioport92_read(void *opaque, uint32_t addr)
{
return ioport_get_a20() << 1;
}
@@ -424,7 +417,7 @@ static void bochs_bios_write(void *opaque, uint32_t addr,
uint32_t val)
extern uint64_t node_cpumask[MAX_NODES];
-static void bochs_bios_init(void)
+void bochs_bios_init(void)
{
void *fw_cfg;
uint8_t *smbios_table;
@@ -568,10 +561,10 @@ static long get_file_size(FILE *f)
return size;
}
-static void load_linux(target_phys_addr_t option_rom,
- const char *kernel_filename,
- const char *initrd_filename,
- const char *kernel_cmdline)
+void load_linux(target_phys_addr_t option_rom,
+ const char *kernel_filename,
+ const char *initrd_filename,
+ const char *kernel_cmdline)
{
uint16_t protocol;
uint32_t gpr[8];
@@ -722,7 +715,7 @@ static void load_linux(target_phys_addr_t option_rom,
generate_bootsect(option_rom, gpr, seg, 0);
}
-static void main_cpu_reset(void *opaque)
+void main_cpu_reset(void *opaque)
{
CPUState *env = opaque;
cpu_reset(env);
@@ -737,11 +730,11 @@ static const int ide_irq[2] = { 14, 15 };
static int ne2000_io[NE2000_NB_MAX] = { 0x300, 0x320, 0x340, 0x360, 0x280,
0x380 };
static int ne2000_irq[NE2000_NB_MAX] = { 9, 10, 11, 3, 4, 5 };
-static int serial_io[MAX_SERIAL_PORTS] = { 0x3f8, 0x2f8, 0x3e8, 0x2e8 };
-static int serial_irq[MAX_SERIAL_PORTS] = { 4, 3, 4, 3 };
+int serial_io[MAX_SERIAL_PORTS] = { 0x3f8, 0x2f8, 0x3e8, 0x2e8 };
+int serial_irq[MAX_SERIAL_PORTS] = { 4, 3, 4, 3 };
-static int parallel_io[MAX_PARALLEL_PORTS] = { 0x378, 0x278, 0x3bc };
-static int parallel_irq[MAX_PARALLEL_PORTS] = { 7, 7, 7 };
+int parallel_io[MAX_PARALLEL_PORTS] = { 0x378, 0x278, 0x3bc };
+int parallel_irq[MAX_PARALLEL_PORTS] = { 7, 7, 7 };
#ifdef HAS_AUDIO
static void audio_init (PCIBus *pci_bus, qemu_irq *pic)
diff --git a/hw/pcdt.c b/hw/pcdt.c
new file mode 100644
index 0000000..a2d0df1
--- /dev/null
+++ b/hw/pcdt.c
@@ -0,0 +1,941 @@
+/*
+ * QEMU PC System Emulator
+ *
+ * Copyright (C) 2009 Red Hat, Inc., Markus Armbruster <address@hidden>
+ * Copyright (c) 2003-2004 Fabrice Bellard
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+/*
+ * This is a PC configured and built using the new dt.h interface.
+ * Having two PC machine types makes no sense in the long run, of
+ * course. We want to replace pc.c eventually, and also convert other
+ * machine types to this interface.
+ *
+ * The configuration data currently is hardwired, and fairly limited.
+ *
+ * The nuts and bolts of PC emulation remain in pc.c for now, and
+ * using the stuff there makes the somewhat clumsy pcint.h necessary.
+ *
+ * The drivers here generally don't do the actual work, they just
+ * provide a common interface to existing device code. Arguably, they
+ * should be integrated into that device code, with the goal of
+ * eventually replacing the old, ad hoc interfaces.
+ *
+ * Several drivers here are not PC-specific, e.g. drivers for various
+ * PCI devices.
+ */
+
+#include <assert.h>
+#include "hw.h"
+#include "pc.h"
+#include "fdc.h"
+#include "pci.h"
+#include "block.h"
+#include "sysemu.h"
+#include "audio/audio.h"
+#include "net.h"
+#include "smbus.h"
+#include "boards.h"
+#include "virtio-blk.h"
+#include "virtio-balloon.h"
+#include "virtio-console.h"
+#include "hpet_emul.h"
+#include "pcint.h"
+#include "dt.h"
+
+
+/* CPUs Driver */
+
+typedef struct dt_device_cpus {
+ const char *model;
+ int num;
+} dt_device_cpus;
+
+static const dt_prop_spec dt_cpus_props[] = {
+ DT_PROP_SPEC_INIT("model", dt_device_cpus, model, string),
+ DT_PROP_SPEC_INIT("num", dt_device_cpus, num, int),
+ DT_PROP_SPEC_SENTINEL()
+};
+
+static void dt_cpus_init(dt_device *dev)
+{
+ dt_device_cpus *priv = dev->priv;
+ int i;
+ CPUState *env;
+
+ for(i = 0; i < priv->num; i++) {
+ env = cpu_init(priv->model);
+ if (!env) {
+ fprintf(stderr, "Unable to find CPU definition\n");
+ exit(1);
+ }
+ if (i != 0)
+ env->halted = 1;
+ qemu_register_reset(main_cpu_reset, env);
+ if (1 /* TODO priv->apic */) {
+ env->cpuid_features |= CPUID_APIC;
+ apic_init(env);
+ }
+ }
+}
+
+
+/* Memory Driver */
+
+typedef struct dt_device_memory {
+ target_phys_addr_t addr;
+ ram_addr_t size;
+ int read_only;
+} dt_device_memory;
+
+static const dt_prop_spec dt_memory_props[] = {
+ DT_PROP_SPEC_INIT("address", dt_device_memory, addr, target_phys_addr_t),
+ DT_PROP_SPEC_INIT("size", dt_device_memory, size, ram_addr_t),
+ DT_PROP_SPEC_INIT("read-only", dt_device_memory, read_only, void),
+ DT_PROP_SPEC_SENTINEL()
+};
+
+static void dt_memory_init(dt_device *dev)
+{
+ dt_device_memory *priv = dev->priv;
+ ram_addr_t host_offs;
+
+ host_offs = qemu_ram_alloc(priv->size);
+ cpu_register_physical_memory(priv->addr, priv->size,
+ host_offs | (priv->read_only ? IO_MEM_ROM : 0));
+
+ printf("memory " TARGET_FMT_plx " %8lx %8lx %s\n",
+ priv->addr, (unsigned long)priv->size, (unsigned long)host_offs,
+ priv->read_only ? "ro" : "rw");
+}
+
+
+/* i8254 PIT Driver */
+
+/*
+ * TODO Factor out the parts that are not PC-specific, and move them
+ * out, since there are other architectures that use it.
+ *
+ * TODO HPET should be separate from PIT.
+ */
+
+typedef struct dt_device_i8254 {
+ int hpet;
+} dt_device_i8254;
+
+static void dt_i8254_config(dt_device *dev, dt_host *host)
+{
+ dt_device_i8254 *priv = dev->priv;
+
+ priv->hpet = 1;
+}
+
+static void dt_i8254_init(dt_device *dev)
+{
+ PITState *pit;
+ qemu_irq *gsi;
+ dt_device_i8254 *priv = dev->priv;
+
+ gsi = dt_get_int(dev, 16);
+
+ pit = pit_init(0x40, gsi[0]);
+ pcspk_init(pit);
+ if (priv->hpet)
+ hpet_init(gsi);
+}
+
+
+/* PC APIC Driver */
+
+/*
+ * This driver takes care of I/O APICs and the pair of i8259 PICs.
+ * Bunching them together that way keeps the interrupt graph a tree.
+ * The result is an interrupt controller for GSIs.
+ */
+
+typedef struct dt_device_apic {
+ qemu_irq *gsi;
+} dt_device_apic;
+
+static void dt_apic_int_init(dt_device *dev)
+{
+ dt_device_apic *priv = dev->priv;
+ qemu_irq *cpu_irq;
+ IOAPICState *ioapic;
+
+ cpu_irq = qemu_allocate_irqs(pic_irq_request, NULL, 1);
+ priv->gsi = i8259_init(cpu_irq[0]);
+ ferr_irq = priv->gsi[13];
+ if (1 /* TODO priv->ioapic */) {
+ ioapic = ioapic_init();
+ pic_set_alt_irq_func(isa_pic, ioapic_set_irq, ioapic);
+ }
+}
+
+static qemu_irq *dt_apic_get_int(dt_device *dev, int *nirq)
+{
+ dt_device_apic *priv = dev->priv;
+
+ if (nirq)
+ *nirq = 16;
+ return priv->gsi;
+}
+
+
+/* MC146818 RTC Driver */
+
+typedef struct dt_device_MC146818 {
+ const char *boot_device;
+ ram_addr_t ram_below_4g, ram_above_4g;
+ /* TODO store cylinders, heads, sectors, translation instead of bds[] */
+ BlockDriverState *ide_bds[MAX_IDE_BUS * MAX_IDE_DEVS];
+ int fd0, fd1;
+} dt_device_MC146818;
+
+static const dt_prop_spec dt_MC146818_props[] = {
+ DT_PROP_SPEC_INIT("boot-device", dt_device_MC146818, boot_device,
+ string),
+ DT_PROP_SPEC_INIT("ram-below-4g", dt_device_MC146818, ram_below_4g,
+ ram_addr_t),
+ DT_PROP_SPEC_INIT("ram-above-4g", dt_device_MC146818, ram_above_4g,
+ ram_addr_t),
+ DT_PROP_SPEC_SENTINEL()
+};
+
+static void dt_MC146818_config(dt_device *dev, dt_host *host)
+{
+ dt_device_MC146818 *priv = dev->priv;
+ BlockDriverState *fd_bds[MAX_FD];
+
+ dt_find_drives(dt_find_bus(dt_root(dev)->conf, DT_BUS_IDE, 0)->conf,
+ host, priv->ide_bds, ARRAY_SIZE(priv->ide_bds));
+ dt_find_drives(dt_find_bus(dt_root(dev)->conf, DT_BUS_FLOPPY, 0)->conf,
+ host, fd_bds, ARRAY_SIZE(fd_bds));
+ priv->fd0 = fdctrl_get_drive_type(fd_bds[0]);
+ priv->fd1 = fdctrl_get_drive_type(fd_bds[1]);
+}
+
+static void dt_MC146818_init(dt_device *dev)
+{
+ dt_device_MC146818 *priv = dev->priv;
+ qemu_irq *gsi = dt_get_int(dev, 16);
+ RTCState *rtc_state;
+
+ rtc_state = rtc_init(0x70, gsi[8], 2000);
+ qemu_register_boot_set(pc_boot_set, rtc_state);
+ cmos_init(rtc_state,
+ priv->ram_below_4g, priv->ram_above_4g, priv->boot_device,
+ priv->ide_bds, priv->fd0, priv->fd1);
+}
+
+
+/* PC Miscellanous Driver */
+
+/*
+ * This is a driver for a whole collection of devices. Could be
+ * picked apart into separate drivers, I guess.
+ */
+
+typedef struct dt_device_pc_misc {
+ BlockDriverState *bds[MAX_FD];
+} dt_device_pc_misc;
+
+static void dt_pc_misc_config(dt_device *dev, dt_host *host)
+{
+ dt_device_pc_misc *priv = dev->priv;
+
+ dt_find_drives(dev->conf, host, priv->bds, ARRAY_SIZE(priv->bds));
+}
+
+static void dt_pc_misc_init(dt_device *dev)
+{
+ dt_device_pc_misc *priv = dev->priv;
+ qemu_irq *gsi;
+ int i;
+
+ gsi = dt_get_int(dev, 16);
+
+ vmport_init();
+
+ bochs_bios_init();
+
+ register_ioport_write(0x80, 1, 1, ioport80_write, NULL);
+ register_ioport_write(0xf0, 1, 1, ioportF0_write, NULL);
+
+ register_ioport_read(0x92, 1, 1, ioport92_read, NULL);
+ register_ioport_write(0x92, 1, 1, ioport92_write, NULL);
+
+ for(i = 0; i < MAX_SERIAL_PORTS; i++) {
+ if (serial_hds[i]) {
+ serial_init(serial_io[i], gsi[serial_irq[i]], 115200,
+ serial_hds[i]);
+ }
+ }
+
+ for(i = 0; i < MAX_PARALLEL_PORTS; i++) {
+ if (parallel_hds[i]) {
+ parallel_init(parallel_io[i], gsi[parallel_irq[i]],
+ parallel_hds[i]);
+ }
+ }
+
+ qemu_system_hot_add_init();
+
+ i8042_init(gsi[1], gsi[12], 0x60);
+ DMA_init(0);
+
+ fdctrl_init(gsi[6], 2, 0, 0x3f0, priv->bds);
+}
+
+
+/* PCI Bus Driver */
+
+typedef struct dt_device_pci {
+ PCIBus *pcibus;
+} dt_device_pci;
+
+static void dt_pci_init(dt_device *dev)
+{
+ dt_device_pci *priv = dev->priv;
+
+ priv->pcibus = i440fx_init(&i440fx_state, dt_get_int(dev, 16));
+}
+
+static void dt_pci_start(dt_device *dev)
+{
+ i440fx_init_memory_mappings(i440fx_state);
+}
+
+static PCIBus *dt_pci_get_pcibus(dt_device *dev)
+{
+ return ((dt_device_pci *)dev->priv)->pcibus;
+}
+
+
+/* PIIX3 IDE Driver */
+
+typedef struct dt_device_piix3_ide {
+ dt_pcidevice pci_dev;
+ BlockDriverState *bds[MAX_IDE_BUS * MAX_IDE_DEVS];
+} dt_device_piix3_ide;
+
+static void dt_piix3_ide_config(dt_device *dev, dt_host *host)
+{
+ dt_device_piix3_ide *priv = dev->priv;
+
+ dt_find_drives(dev->conf, host, priv->bds, ARRAY_SIZE(priv->bds));
+}
+
+static void dt_piix3_ide_init(dt_device *dev)
+{
+ dt_device_piix3_ide *priv = dev->priv;
+ PCIBus *pci_bus = dt_get_pcibus(dev);
+ qemu_irq *gsi = dt_get_int(dev, 16);
+
+ pci_piix3_ide_init(pci_bus, priv->bds, priv->pci_dev.devfn, gsi);
+}
+
+
+/* PIIX3 USB Driver */
+
+typedef struct dt_device_piix3_usb {
+ dt_pcidevice pci_dev;
+} dt_device_piix3_usb;
+
+static void dt_piix3_usb_init(dt_device *dev)
+{
+ dt_device_piix3_usb *priv = dev->priv;
+ PCIBus *pci_bus = dt_get_pcibus(dev);
+
+ usb_uhci_piix3_init(pci_bus, priv->pci_dev.devfn);
+}
+
+
+/* PIIX3 ACPI Driver */
+
+typedef struct dt_device_piix3_acpi {
+ dt_pcidevice pci_dev;
+} dt_device_piix3_acpi;
+
+static void dt_piix3_acpi_init(dt_device *dev)
+{
+ dt_device_piix3_acpi *priv = dev->priv;
+ int i;
+ uint8_t *eeprom_buf;
+ i2c_bus *smbus;
+ PCIBus *pci_bus = dt_get_pcibus(dev);
+ qemu_irq *gsi = dt_get_int(dev, 16);
+
+ eeprom_buf = qemu_mallocz(8 * 256); /* XXX: make this persistent */
+
+ /* TODO: Populate SPD eeprom data. */
+ smbus = piix4_pm_init(pci_bus, priv->pci_dev.devfn, 0xb100, gsi[9]);
+ for (i = 0; i < 8; i++)
+ smbus_eeprom_device_init(smbus, 0x50 + i, eeprom_buf + (i * 256));
+}
+
+
+/* PIIX3 Driver */
+
+typedef struct dt_device_piix3 {
+ dt_pcidevice pci_dev;
+} dt_device_piix3;
+
+static void dt_piix3_init(dt_device *dev)
+{
+ dt_device_piix3 *priv = dev->priv;
+ PCIBus *pci_bus = dt_get_pcibus(dev);
+
+ piix3_init(pci_bus, priv->pci_dev.devfn);
+}
+
+static qemu_irq *dt_piix3_get_int(dt_device *dev, int *nirq)
+{
+ if (nirq)
+ *nirq = 16;
+ return dt_get_int(dev, 16);
+}
+
+
+/* VGA Driver */
+
+typedef struct dt_driver_vga {
+ const char *model;
+ void (*init)(PCIBus *, int);
+} dt_driver_vga;
+
+static void pci_vga_init_(PCIBus *bus, int vga_ram_size)
+{
+ pci_vga_init(bus, vga_ram_size, 0, 0);
+}
+
+static dt_driver_vga dt_driver_vga_table[] = {
+ { "cirrus", pci_cirrus_vga_init },
+ { "vms", pci_vmsvga_init },
+ { "std", pci_vga_init_ },
+ { NULL, NULL }
+};
+
+typedef struct dt_device_vga {
+ dt_pcidevice pci_dev; /* TODO unused */
+ const char *model;
+ ram_addr_t ram_size;
+ dt_driver_vga *vga_drv;
+} dt_device_vga;
+
+static const dt_prop_spec dt_vga_props[] = {
+ DT_PROP_SPEC_INIT("model", dt_device_vga, model, string),
+ DT_PROP_SPEC_INIT("ram", dt_device_vga, ram_size, ram_addr_t),
+ DT_PROP_SPEC_SENTINEL()
+};
+
+static void dt_vga_config(dt_device *dev, dt_host *host)
+{
+ dt_device_vga *priv = dev->priv;
+ int i;
+
+ for (i = 0; dt_driver_vga_table[i].model; i++) {
+ if (!strcmp(dt_driver_vga_table[i].model, priv->model))
+ break;
+ }
+ if (!dt_driver_vga_table[i].model) {
+ fprintf(stderr, "Unknown VGA model %s\n", priv->model);
+ exit(1);
+ }
+ priv->vga_drv = &dt_driver_vga_table[i];
+}
+
+static void dt_vga_init(dt_device *dev)
+{
+ dt_device_vga *priv = dev->priv;
+
+ priv->vga_drv->init(dt_get_pcibus(dev), priv->ram_size);
+}
+
+
+/* NIC Driver */
+
+typedef struct dt_device_nic {
+ dt_pcidevice pci_dev; /* TODO unused */
+ NICInfo nd;
+} dt_device_nic;
+
+static const dt_prop_spec dt_nic_props[] = {
+ DT_PROP_SPEC_INIT("model", dt_device_nic, nd.model, string),
+ DT_PROP_SPEC_INIT("mac", dt_device_nic, nd.macaddr, macaddr),
+ DT_PROP_SPEC_INIT("name", dt_device_nic, nd.name, string),
+ DT_PROP_SPEC_SENTINEL()
+};
+
+static void dt_nic_config(dt_device *dev, dt_host *host)
+{
+ dt_device_nic *priv = dev->priv;
+
+ priv->nd.vlan = dt_find_vlan(dev->conf, host);
+}
+
+static void dt_nic_init(dt_device *dev)
+{
+ dt_device_nic *priv = dev->priv;
+
+ pci_nic_init(dt_get_pcibus(dev), &priv->nd, -1, NULL);
+}
+
+
+/* SCSI Driver */
+
+typedef struct dt_device_scsi {
+ dt_pcidevice pci_dev; /* TODO unused */
+ void *opaque;
+ BlockDriverState *bds[LSI_MAX_DEVS];
+} dt_device_scsi;
+
+static void dt_scsi_config(dt_device *dev, dt_host *host)
+{
+ dt_device_scsi *priv = dev->priv;
+
+ dt_find_drives(dev->conf, host, priv->bds, ARRAY_SIZE(priv->bds));
+}
+
+static void dt_scsi_init(dt_device *dev)
+{
+ dt_device_scsi *priv = dev->priv;
+ int i;
+
+ priv->opaque = lsi_scsi_init(dt_get_pcibus(dev), -1);
+
+ for (i = 0; i < ARRAY_SIZE(priv->bds); i++) {
+ if (priv->bds[i])
+ lsi_scsi_attach(priv->opaque, priv->bds[i], i);
+ }
+}
+
+
+/* Virtio Block Driver */
+
+typedef struct dt_device_virtio_block {
+ dt_pcidevice pci_dev; /* TODO unused */
+ BlockDriverState *bds[1];
+} dt_device_virtio_block;
+
+static void dt_virtio_block_config(dt_device *dev, dt_host *host)
+{
+ dt_device_virtio_block *priv = dev->priv;
+
+ dt_find_drives(dev->conf, host, priv->bds, ARRAY_SIZE(priv->bds));
+}
+
+static void dt_virtio_block_init(dt_device *dev)
+{
+ dt_device_virtio_block *priv = dev->priv;
+
+ virtio_blk_init(dt_get_pcibus(dev), priv->bds[0]);
+}
+
+
+/* Virtio Balloon Driver */
+
+typedef struct dt_device_virtio_balloon {
+ dt_pcidevice pci_dev; /* TODO unused */
+} dt_device_virtio_balloon;
+
+static void dt_virtio_balloon_init(dt_device *dev)
+{
+ virtio_balloon_init(dt_get_pcibus(dev));
+}
+
+
+/* Virtio Console Driver */
+
+typedef struct dt_device_virtio_console {
+ dt_pcidevice pci_dev; /* TODO unused */
+ int index;
+ CharDriverState *hds;
+} dt_device_virtio_console;
+
+static const dt_prop_spec dt_virtio_console_props[] = {
+ DT_PROP_SPEC_INIT("index", dt_device_virtio_console, index, int),
+ DT_PROP_SPEC_SENTINEL()
+};
+
+static void dt_virtio_console_config(dt_device *dev, dt_host *host)
+{
+ dt_device_virtio_console *priv = dev->priv;
+
+ priv->hds = virtcon_hds[priv->index];
+}
+
+static void dt_virtio_console_init(dt_device *dev)
+{
+ dt_device_virtio_console *priv = dev->priv;
+
+ virtio_console_init(dt_get_pcibus(dev), priv->hds);
+}
+
+
+/* Drive Driver */
+
+typedef struct dt_device_drive {
+ int unit;
+} dt_device_drive;
+
+static const dt_prop_spec dt_drive_props[] = {
+ DT_PROP_SPEC_INIT("unit", dt_device_drive, unit, int),
+ DT_PROP_SPEC_SENTINEL()
+};
+
+static int dt_drive_get_unit(dt_device *dev)
+{
+ return ((dt_device_drive *)dev->priv)->unit;
+}
+
+
+/* Machine Driver */
+
+static const dt_driver dt_driver_table[] = {
+ { "", 0, NULL, DT_BUS_ROOT, DT_BUS_NONE,
+ NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL },
+ { "cpus", sizeof(dt_device_cpus), dt_cpus_props,
+ DT_BUS_NONE, DT_BUS_ROOT,
+ NULL, NULL, dt_cpus_init, NULL,
+ NULL, NULL, NULL },
+ { "memory", sizeof(dt_device_memory), dt_memory_props,
+ DT_BUS_NONE, DT_BUS_ROOT,
+ NULL, NULL, dt_memory_init, NULL,
+ NULL, NULL, NULL },
+ { "apic", sizeof(dt_device_apic), NULL,
+ DT_BUS_NONE, DT_BUS_ROOT,
+ NULL, dt_apic_int_init, NULL, NULL,
+ NULL, NULL, dt_apic_get_int },
+ { "i8254", sizeof(dt_device_i8254), NULL,
+ DT_BUS_NONE, DT_BUS_ISA,
+ dt_i8254_config, NULL, dt_i8254_init, NULL,
+ NULL, NULL, NULL },
+ { "MC146818", sizeof(dt_device_MC146818), dt_MC146818_props,
+ DT_BUS_NONE, DT_BUS_ISA,
+ dt_MC146818_config, NULL, dt_MC146818_init, NULL,
+ NULL, NULL, NULL },
+ { "pc-misc", sizeof(dt_device_pc_misc), NULL,
+ DT_BUS_FLOPPY, DT_BUS_ROOT,
+ dt_pc_misc_config, NULL, dt_pc_misc_init, NULL,
+ NULL, NULL, NULL },
+ { "pci", sizeof(dt_device_pci), NULL,
+ DT_BUS_PCI, DT_BUS_ROOT,
+ NULL, NULL, dt_pci_init, dt_pci_start,
+ dt_pci_get_pcibus, NULL, NULL },
+ { "piix3-isa-bridge", sizeof(dt_device_piix3), NULL,
+ DT_BUS_ISA, DT_BUS_PCI,
+ NULL, NULL, dt_piix3_init, NULL,
+ NULL, NULL, dt_piix3_get_int },
+ { "piix3-ide", sizeof(dt_device_piix3_ide), NULL,
+ DT_BUS_IDE, DT_BUS_PCI,
+ dt_piix3_ide_config, NULL, dt_piix3_ide_init, NULL,
+ NULL, NULL, NULL },
+ { "piix3-usb", sizeof(dt_device_piix3_usb), NULL,
+ DT_BUS_NONE, DT_BUS_PCI, /* FIXME: DT_BUS_NONE -> BUS_USB ?*/
+ NULL, NULL, dt_piix3_usb_init, NULL,
+ NULL, NULL, NULL },
+ { "piix3-acpi", sizeof(dt_device_piix3_acpi), NULL,
+ DT_BUS_NONE, DT_BUS_PCI,
+ NULL, NULL, dt_piix3_acpi_init, NULL,
+ NULL, NULL, NULL },
+ { "vga", sizeof(dt_device_vga), dt_vga_props,
+ DT_BUS_NONE, DT_BUS_PCI,
+ dt_vga_config, NULL, dt_vga_init, NULL,
+ NULL, NULL, NULL },
+ { "nic", sizeof(dt_device_nic), dt_nic_props,
+ DT_BUS_NONE, DT_BUS_PCI,
+ dt_nic_config, NULL, dt_nic_init, NULL,
+ NULL, NULL, NULL },
+ { "scsi", sizeof(dt_device_scsi), NULL,
+ DT_BUS_SCSI, DT_BUS_PCI,
+ dt_scsi_config, NULL, dt_scsi_init, NULL,
+ NULL, NULL, NULL },
+ { "virtio-block", sizeof(dt_device_virtio_block), NULL,
+ DT_BUS_VIRTIO, DT_BUS_PCI,
+ dt_virtio_block_config, NULL, dt_virtio_block_init, NULL,
+ NULL, NULL, NULL },
+ { "virtio-balloon", sizeof(dt_device_virtio_balloon), NULL,
+ DT_BUS_NONE, DT_BUS_PCI,
+ NULL, NULL, dt_virtio_balloon_init, NULL,
+ NULL, NULL, NULL },
+ { "virtio-console", sizeof(dt_device_virtio_console),
dt_virtio_console_props,
+ DT_BUS_NONE, DT_BUS_PCI,
+ dt_virtio_console_config, NULL, dt_virtio_console_init, NULL,
+ NULL, NULL, NULL },
+ { "ide-drive", sizeof(dt_device_drive), dt_drive_props,
+ DT_BUS_NONE, DT_BUS_IDE,
+ NULL, NULL, NULL, NULL,
+ NULL, dt_drive_get_unit, NULL },
+ { "scsi-drive", sizeof(dt_device_drive), dt_drive_props,
+ DT_BUS_NONE, DT_BUS_SCSI,
+ NULL, NULL, NULL, NULL,
+ NULL, dt_drive_get_unit, NULL },
+ { "floppy-drive", sizeof(dt_device_drive), dt_drive_props,
+ DT_BUS_NONE, DT_BUS_FLOPPY,
+ NULL, NULL, NULL, NULL,
+ NULL, dt_drive_get_unit, NULL },
+ { "virtio-drive", sizeof(dt_device_drive), dt_drive_props,
+ DT_BUS_NONE, DT_BUS_VIRTIO,
+ NULL, NULL, NULL, NULL,
+ NULL, dt_drive_get_unit, NULL },
+ { NULL, 0, NULL, DT_BUS_NONE, DT_BUS_NONE,
+ NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL }
+};
+
+static tree *dt_hardcoded_config(const char *name)
+{
+#ifdef TARGET_X86_64
+#define CPU_MODEL_DEFAULT "qemu64"
+#else
+#define CPU_MODEL_DEFAULT "qemu32"
+#endif
+ tree *root, *pci, *isa, *leaf;
+
+ /*
+ * TODO Read from config file.
+ *
+ * TODO Pretty far from a comprehensive machine configuration, but
+ * we need to start somewhere.
+ */
+ if (strcmp(name, "pcdt")) {
+ fprintf(stderr, "qemu: machine %s not implemented", name);
+ exit(1);
+ }
+ root = tree_new_child(NULL, "", NULL);
+
+ leaf = tree_new_child(root, "cpus", NULL);
+ tree_put_propf(leaf, "model", "%s", CPU_MODEL_DEFAULT);
+
+ leaf = tree_new_child(root, "apic", NULL);
+
+ leaf = tree_new_child(root, "pc-misc", NULL);
+ tree_put_propf(leaf, "interrupt-parent", "/apic");
+
+ pci = tree_new_child(root, "pci", NULL);
+ tree_put_propf(pci, "interrupt-parent", "/apic");
+
+ isa = tree_new_child(pci, "piix3-isa-bridge", NULL);
+ tree_put_propf(isa, "interrupt-parent", "/apic");
+ tree_put_propf(isa, "unit-address", "1.0");
+
+ leaf = tree_new_child(isa, "i8254", NULL);
+
+ leaf = tree_new_child(isa, "MC146818", NULL);
+
+ leaf = tree_new_child(pci, "piix3-ide", NULL);
+ tree_put_propf(leaf, "interrupt-parent", "/apic");
+ tree_put_propf(leaf, "unit-address", "1.1");
+
+ if (usb_enabled) {
+ leaf = tree_new_child(pci, "piix3-usb", NULL);
+ tree_put_propf(leaf, "unit-address", "1.2");
+ }
+
+ if (acpi_enabled) {
+ leaf = tree_new_child(pci, "piix3-acpi", NULL);
+ tree_put_propf(leaf, "interrupt-parent", "/apic");
+ tree_put_propf(leaf, "unit-address", "1.3");
+ }
+
+ leaf = tree_new_child(pci, "virtio-balloon", NULL);
+ return root;
+#undef CPU_MODEL_DEFAULT
+}
+
+#define dt_read_config(name) dt_hardcoded_config((name))
+
+static void dt_add_ram(tree *conf, dt_host *host, ram_addr_t ram_size)
+{
+ ram_addr_t left, sz;
+
+ left = ram_size;
+ sz = MIN(left, 0xa0000);
+ dt_add_memory(conf, host, 0, sz, 0);
+ left -= sz;
+
+ sz = MIN(left, 0x60000);
+ left -= sz;
+
+ if (left) {
+ sz = MIN(left, 0xe0000000 - 0x100000);
+ dt_add_memory(conf, host, 0x100000, sz, 0);
+ left -= sz;
+ }
+
+#if TARGET_PHYS_ADDR_BITS > 32
+ if (left)
+ dt_add_memory(conf, host, 0x100000000ull, left, 0);
+#endif
+}
+
+static char *bios_image_fname(const char *image)
+{
+ char *fname = qemu_malloc(strlen(bios_dir) + 1 + strlen(image) + 1);
+ sprintf(fname, "%s/%s", bios_dir, image);
+ return fname;
+}
+
+static void dt_add_bios(tree *conf, dt_host *host)
+{
+ char *fname = bios_image_fname(bios_name ? bios_name : BIOS_FILENAME);
+ int size;
+ target_phys_addr_t addr;
+
+ size = get_image_size(fname);
+ if (size <= 0 || size % 0x10000 != 0 || size > 0x20000) {
+ /* FIXME implement size > 0x20000 */
+ fprintf(stderr, "qemu: could not load PC BIOS '%s'\n", fname);
+ exit(1);
+ }
+
+ addr = 0xffffffff - (size - 1);
+ dt_add_memory(conf, host, addr, size, 1);
+ dt_config_mem(host, dt_image_loader, addr, size, fname);
+
+ /* TODO map the same memory again */
+ addr = 0x100000 - size;
+ dt_add_memory(conf, host, addr, size, 1);
+ dt_config_mem(host, dt_image_loader, addr, size, fname);
+}
+
+static int dt_config_oprom(dt_host *host, dt_mem_loader loader,
+ int offs, int size, const void *arg,
+ const char *what)
+{
+ offs = (offs + 2047) & ~2047;
+
+ if (offs + size > 0x20000) {
+ if (what)
+ fprintf(stderr, "Not enough space for %s\n", what);
+ else
+ fprintf(stderr, "Not enough space for option rom '%s'\n",
+ (char *)arg);
+ exit(1);
+ }
+
+ dt_config_mem(host, loader, 0xc0000 + offs, size, arg);
+ return offs + size;
+}
+
+static int dt_config_oprom_image(dt_host *host, int offs, const char *fname)
+{
+ int size;
+
+ size = get_image_size(fname);
+ if (size < 0) {
+ fprintf(stderr, "Could not load option rom '%s'\n", fname);
+ exit(1);
+ }
+
+ return dt_config_oprom(host, dt_image_loader, offs, size, fname, fname);
+}
+
+typedef struct dt_linux_loader_arg {
+ const char *kernel_filename;
+ const char *kernel_cmdline;
+ const char *initrd_filename;
+} dt_linux_loader_arg;
+
+static void dt_linux_loader(target_phys_addr_t addr, ram_addr_t size,
+ const void *arg)
+{
+ const dt_linux_loader_arg *llarg = arg;
+
+ load_linux(addr, llarg->kernel_filename, llarg->initrd_filename,
+ llarg->kernel_cmdline);
+}
+
+static void dt_add_oprom(tree *conf, dt_host *host,
+ const char *kernel_filename,
+ const char *kernel_cmdline,
+ const char *initrd_filename)
+{
+ int offs, i;
+ dt_linux_loader_arg *llarg;
+
+ offs = 0;
+
+ if (cirrus_vga_enabled || vmsvga_enabled || std_vga_enabled) {
+ offs = dt_config_oprom_image(host, offs,
+ bios_image_fname(cirrus_vga_enabled
+ ? VGABIOS_CIRRUS_FILENAME
+ : VGABIOS_FILENAME));
+ /*
+ * Although video roms can grow larger than 0x8000, the first
+ * 0x8000 bytes are reserved for them. It means we won't be
+ * looking for any other kind of option rom inside this area.
+ */
+ offs = MAX(offs, 0x8000);
+ }
+
+ if (kernel_filename) {
+ llarg = qemu_malloc(sizeof(*llarg));
+ llarg->kernel_filename = kernel_filename;
+ llarg->kernel_cmdline = kernel_cmdline;
+ llarg->initrd_filename = initrd_filename;
+ offs = dt_config_oprom(host, dt_linux_loader, offs, 2048, llarg,
+ "kernel loader");
+ }
+
+ for (i = 0; i < nb_option_roms; i++)
+ offs = dt_config_oprom_image(host, offs, option_rom[i]);
+
+ dt_add_memory(conf, host, 0xc0000, offs, 1);
+}
+
+static void pcdt_init(ram_addr_t ram_size, int vga_ram_size,
+ const char *boot_device,
+ const char *kernel_filename,
+ const char *kernel_cmdline,
+ const char *initrd_filename,
+ const char *cpu_model)
+{
+ tree *conf;
+ tree *node;
+ dt_host *host;
+ dt_device *root;
+
+ conf = dt_read_config(pcdt_machine.name);
+ if (!conf)
+ exit(1);
+
+ node = tree_node_by_name(conf, "/pci/piix3-isa-bridge/MC146818");
+ tree_put_propf(node, "boot-device", "%s", boot_device);
+ assert(ram_size <= 0xe0000000); /* TODO implement */
+ tree_put_propf(node, "ram-below-4g", "%#lx", (unsigned long)ram_size);
+
+ host = dt_create_host(dt_driver_table);
+ root = dt_create_machine(conf, host, cpu_model);
+
+ dt_add_ram(conf, host, ram_size);
+ dt_add_bios(conf, host);
+ dt_add_oprom(conf, host, kernel_filename, kernel_cmdline, initrd_filename);
+ dt_add_dyn_devs(conf, host, vga_ram_size);
+ dt_config_machine(root, host);
+
+ dt_init_machine(root, host);
+}
+
+QEMUMachine pcdt_machine = {
+ .name = "pcdt",
+ .desc = "Standard PC (device tree)",
+ .init = pcdt_init,
+ .max_cpus = 255,
+};
diff --git a/hw/pcidt.c b/hw/pcidt.c
new file mode 100644
index 0000000..db37311
--- /dev/null
+++ b/hw/pcidt.c
@@ -0,0 +1,67 @@
+/*
+ * QEMU PC System Emulator
+ *
+ * Copyright (C) 2009 Red Hat, Inc., Markus Armbruster <address@hidden>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+/* PCI Bus */
+
+#include <assert.h>
+#include "hw.h"
+#include "pci.h"
+#include "dt.h"
+
+int dt_parse_pci_unitaddr(void *dst, const char *src, const dt_prop_spec *spec)
+{
+ int devfn, slot, func;
+ unsigned long val;
+ const char *p;
+ char *e;
+
+ assert(spec->size == sizeof(int));
+
+ p = src;
+ val = strtoul(p, &e, 16);
+ if (e == p)
+ return -1;
+
+ slot = val;
+
+ if (*e == '.') {
+ p = e + 1;
+ val = strtoul(p, &e, 16);
+ if (e == p)
+ return -1;
+ } else
+ func = 0;
+
+ func = val;
+
+ devfn = PCI_DEVFN(slot, func);
+ *(int *)dst = devfn;
+
+ return 0;
+}
+
+const dt_prop_spec dt_bus_prop_spec_pci[] = {
+ /*
+ * FIXME assumes every PCI device has a dt_pcidevice at offset 0
+ * in dev->priv
+ */
+ DT_PROP_SPEC_INIT("unit-address", dt_pcidevice, devfn, pci_unitaddr),
+ DT_PROP_SPEC_SENTINEL()
+};
diff --git a/hw/pcint.h b/hw/pcint.h
new file mode 100644
index 0000000..acd645b
--- /dev/null
+++ b/hw/pcint.h
@@ -0,0 +1,47 @@
+/*
+ * Stuff shared by pc.c and dt.c
+ *
+ * See dt.c for why this should go away eventually.
+ */
+
+#ifndef HW_PC_INT_H
+#define HW_PC_INT_H
+
+#define BIOS_FILENAME "bios.bin"
+#define VGABIOS_FILENAME "vgabios.bin"
+#define VGABIOS_CIRRUS_FILENAME "vgabios-cirrus.bin"
+
+#define MAX_IDE_BUS 2
+
+/* TODO move to ferr stuff in cpu.h? */
+extern qemu_irq ferr_irq;
+void ioportF0_write(void *opaque, uint32_t addr, uint32_t data);
+
+/* TODO eliminate */
+extern PCIDevice *i440fx_state;
+extern int serial_io[MAX_SERIAL_PORTS];
+extern int serial_irq[MAX_SERIAL_PORTS];
+extern int parallel_io[MAX_PARALLEL_PORTS];
+extern int parallel_irq[MAX_PARALLEL_PORTS];
+
+/* TODO move to pic stuff in pc.h? */
+void pic_irq_request(void *opaque, int irq, int level);
+
+/* TODO move to a20 stuff in pc.h? */
+void ioport92_write(void *opaque, uint32_t addr, uint32_t val);
+uint32_t ioport92_read(void *opaque, uint32_t addr);
+
+void bochs_bios_init(void);
+void main_cpu_reset(void *opaque);
+void ioport80_write(void *opaque, uint32_t addr, uint32_t data);
+int pc_boot_set(void *opaque, const char *boot_device);
+void cmos_init(RTCState *s,
+ ram_addr_t ram_size, ram_addr_t above_4g_mem_size,
+ const char *boot_device, BlockDriverState **hd_table,
+ int fd0, int fd1);
+void load_linux(target_phys_addr_t option_rom,
+ const char *kernel_filename,
+ const char *initrd_filename,
+ const char *kernel_cmdline);
+
+#endif
diff --git a/target-i386/machine.c b/target-i386/machine.c
index 1b0d36d..6465f77 100644
--- a/target-i386/machine.c
+++ b/target-i386/machine.c
@@ -7,6 +7,7 @@
void register_machines(void)
{
+ qemu_register_machine(&pcdt_machine);
qemu_register_machine(&pc_machine);
qemu_register_machine(&isapc_machine);
#ifdef CONFIG_XEN
diff --git a/tree.c b/tree.c
new file mode 100644
index 0000000..da07b76
--- /dev/null
+++ b/tree.c
@@ -0,0 +1,285 @@
+/*
+ * QEMU PC System Emulator
+ *
+ * Copyright (C) 2009 Red Hat, Inc., Markus Armbruster <address@hidden>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+/* Ye Olde Decorated Tree */
+
+#include <assert.h>
+#include "tree.h"
+#include "qemu-common.h"
+#include "sys-queue.h"
+
+struct tree {
+ const char *name;
+ LIST_HEAD(, tree_prop) props;
+ tree *parent;
+ TAILQ_HEAD(, tree) children;
+ TAILQ_ENTRY(tree) siblings;
+ void *user;
+};
+
+struct tree_prop {
+ const char *name;
+ const void *val;
+ int sz;
+ tree *owner;
+ LIST_ENTRY(tree_prop) link;
+};
+
+tree *tree_new_child(tree *parent, const char *name, void *user)
+{
+ tree *child = qemu_malloc(sizeof(*child));
+
+ child->name = name;
+ LIST_INIT(&child->props);
+ child->parent = NULL;
+ TAILQ_INIT(&child->children);
+ child->user = user;
+ if (parent)
+ tree_insert(parent, child);
+
+ return child;
+}
+
+void tree_insert(tree *parent, tree *child)
+{
+ assert(!child->parent);
+ child->parent = parent;
+ TAILQ_INSERT_TAIL(&parent->children, child, siblings);
+}
+
+const char *tree_node_name(const tree *node)
+{
+ return node->name;
+}
+
+static tree *tree_child_by_name(const tree *parent, const char *name)
+{
+ const char *slash = strchr(name, '/');
+ size_t len = slash ? slash - name : strlen(name);
+ tree *child;
+
+ TAILQ_FOREACH(child, &parent->children, siblings) {
+ if (!memcmp(child->name, name, len) && child->name[len] == 0)
+ return child;
+ }
+ return NULL;
+}
+
+tree *tree_node_by_name(const tree *node, const char *name)
+{
+ tree *child;
+ size_t len;
+
+ if (name[0] == '/') {
+ for (; node->parent; node = node->parent) ;
+ while (*name == '/') name++;
+ }
+
+ if (name[0] == 0)
+ return (tree *)node;
+
+ child = tree_child_by_name(node, name);
+ if (!child)
+ return NULL;
+
+ len = strlen(child->name);
+ if (name[len] == 0)
+ return child;
+ assert (name[len] == '/');
+
+ while (name[len] == '/') len++;
+ return tree_node_by_name(child, name + len);
+}
+
+tree_prop *tree_first_prop(const tree *node)
+{
+ return LIST_FIRST(&node->props);
+}
+
+tree_prop *tree_next_prop(const tree_prop *prop)
+{
+ return LIST_NEXT(prop, link);
+}
+
+tree_prop *tree_get_prop(const tree *node, const char *name)
+{
+ tree_prop *prop;
+
+ LIST_FOREACH(prop, &node->props, link) {
+ if (!strcmp(prop->name, name))
+ return prop;
+ }
+ return NULL;
+}
+
+const char *tree_get_prop_s(const tree *node, const char *name)
+{
+ tree_prop *prop = tree_get_prop(node, name);
+ if (!prop
+ || memchr(prop->val, 0, prop->sz) != prop->val + prop->sz - 1) {
+ errno = EINVAL;
+ return NULL;
+ }
+ return prop->val;
+}
+
+const char *tree_prop_name(const tree_prop *prop)
+{
+ return prop->name;
+}
+
+const void *tree_prop_value(const tree_prop *prop, size_t *size)
+{
+ if (size)
+ *size = prop->sz;
+ return prop->val;
+}
+
+void tree_put_prop(tree *node, const char *name,
+ const void *val, size_t sz)
+{
+ tree_prop *prop;
+
+ prop = tree_get_prop(node, name);
+ if (!prop) {
+ prop = qemu_malloc(sizeof(*prop));
+ prop->name = name;
+ prop->owner = node;
+ LIST_INSERT_HEAD(&node->props, prop, link);
+ }
+ /* FIXME need a destructor for val */
+ prop->val = val;
+ prop->sz = sz;
+}
+
+void tree_put_propf(tree *node, const char *name, const char *fmt, ...)
+{
+ va_list ap;
+ size_t len;
+ char *buf;
+
+ va_start(ap, fmt);
+ len = vsnprintf(NULL, 0, fmt, ap);
+ va_end(ap);
+
+ buf = qemu_malloc(len + 1);
+ va_start(ap, fmt);
+ vsnprintf(buf, len + 1, fmt, ap);
+ va_end(ap);
+
+ tree_put_prop(node, name, buf, len + 1);
+}
+
+void tree_put_user(tree *node, void *user)
+{
+ node->user = user;
+}
+
+void *tree_get_user(const tree *node)
+{
+ return node->user;
+}
+
+tree *tree_parent(const tree *node)
+{
+ return node->parent;
+}
+
+tree *tree_first_child(const tree *node)
+{
+ return TAILQ_FIRST(&node->children);
+}
+
+tree *tree_sibling(const tree *node)
+{
+ return TAILQ_NEXT(node, siblings);
+}
+
+int tree_path(const tree *node, char *buf, size_t bufsz)
+{
+ char *p;
+ const tree *np;
+ size_t len, res;
+
+ p = buf + bufsz;
+ res = 0;
+ for (np = node; np->parent; np = np->parent) {
+ len = 1 + strlen(np->name);
+ res += len;
+ if (res >= bufsz)
+ continue;
+ p -= len;
+ memcpy(p + 1, np->name, len - 1);
+ p[0] = '/';
+ }
+
+ if (res == 0) {
+ if (++res < bufsz)
+ *--p = '/';
+ }
+
+ if (res < bufsz) {
+ memcpy(buf, p, res);
+ buf[res] = 0;
+ }
+
+ return res;
+}
+
+static void tree_print_sub(const tree *node, int indent)
+{
+ int i, use_str, sep;
+ const unsigned char *pv;
+ tree_prop *prop;
+ tree *child;
+
+ printf("%*s%s {\n", indent, "", node->parent ? node->name : "/");
+ LIST_FOREACH(prop, &node->props, link) {
+ printf("%*s%s", indent + 4, "", prop->name);
+ pv = prop->val;
+ if (pv) {
+ printf(" = ");
+ use_str = pv[prop->sz - 1] == 0;
+ for (i = 0; i < prop->sz - 1; i++) {
+ if (!isprint(pv[i]))
+ use_str = 0;
+ }
+ if (use_str)
+ printf("\"%s\"", (const char *)prop->val);
+ else {
+ sep = '[';
+ for (i = 0; i < prop->sz; i++) {
+ printf("%c%02x", sep, pv[i]);
+ sep = ' ';
+ }
+ printf("]");
+ }
+ }
+ printf(";\n");
+ }
+ TAILQ_FOREACH(child, &node->children, siblings)
+ tree_print_sub(child, indent + 4);
+ printf("%*s};\n", indent, "");
+}
+
+void tree_print(const tree *node)
+{
+ tree_print_sub(node, 0);
+}
diff --git a/tree.h b/tree.h
new file mode 100644
index 0000000..3f3b367
--- /dev/null
+++ b/tree.h
@@ -0,0 +1,41 @@
+#ifndef TREE_H
+#define TREE_H
+
+#include <stddef.h>
+
+typedef struct tree tree;
+typedef struct tree_prop tree_prop;
+
+tree *tree_new_child(tree *parent, const char *name, void *user);
+void tree_insert(tree *parent, tree *child);
+const char *tree_node_name(const tree *node);
+tree *tree_node_by_name(const tree *node,
+ const char *name);
+
+tree_prop *tree_first_prop(const tree *node);
+tree_prop *tree_next_prop(const tree_prop *prop);
+#define TREE_FOREACH_PROP(var, node) \
+ for (var = tree_first_prop(node); var; var = tree_next_prop(var))
+tree_prop *tree_get_prop(const tree *node, const char *name);
+const char *tree_get_prop_s(const tree *node, const char *name);
+const char *tree_prop_name(const tree_prop *prop);
+const void *tree_prop_value(const tree_prop *prop, size_t *size);
+void tree_put_prop(tree *node, const char *name,
+ const void *val, size_t sz);
+void tree_put_propf(tree *node, const char *name,
+ const char *fmt, ...)
+ __attribute__((format(printf,3,4)));
+
+void tree_put_user(tree *node, void *user);
+void *tree_get_user(const tree *node);
+
+tree *tree_parent(const tree *node);
+tree *tree_first_child(const tree *node);
+tree *tree_sibling(const tree *node);
+#define TREE_FOREACH_CHILD(var, node) \
+ for (var = tree_first_child(node); var; var = tree_sibling(var))
+
+int tree_path(const tree *node, char *buf, size_t bufsz);
+void tree_print(const tree *node);
+
+#endif
--
1.6.0.6
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