#include "hw/hw.h"
#include "sysemu/sysemu.h"
#include "sysemu/dma.h"
+#include "hw/boards.h"
#include "hw/isa/isa.h"
#include "hw/nvram/fw_cfg.h"
#include "hw/sysbus.h"
+#include "hw/boards.h"
#include "trace.h"
#include "qemu/error-report.h"
#include "qemu/config-file.h"
+#include "qemu/cutils.h"
-#define FW_CFG_CTL_SIZE 2
#define FW_CFG_NAME "fw_cfg"
#define FW_CFG_PATH "/machine/" FW_CFG_NAME
/*< public >*/
FWCfgEntry entries[2][FW_CFG_MAX_ENTRY];
+ int entry_order[FW_CFG_MAX_ENTRY];
FWCfgFiles *files;
uint16_t cur_entry;
uint32_t cur_offset;
Notifier machine_ready;
+ int fw_cfg_order_override;
+
bool dma_enabled;
dma_addr_t dma_addr;
AddressSpace *dma_as;
temp = qemu_opt_get(opts, "splash-time");
if (temp != NULL) {
p = (char *)temp;
- boot_splash_time = strtol(p, (char **)&p, 10);
+ boot_splash_time = strtol(p, &p, 10);
}
}
temp = qemu_opt_get(opts, "reboot-timeout");
if (temp != NULL) {
p = (char *)temp;
- reboot_timeout = strtol(p, (char **)&p, 10);
+ reboot_timeout = strtol(p, &p, 10);
}
}
/* validate the input */
return version_id == 1;
}
-static bool fw_cfg_dma_enabled(void *opaque)
+bool fw_cfg_dma_enabled(void *opaque)
{
FWCfgState *s = opaque;
fw_cfg_add_bytes(s, key, copy, sizeof(value));
}
+void fw_cfg_set_order_override(FWCfgState *s, int order)
+{
+ assert(s->fw_cfg_order_override == 0);
+ s->fw_cfg_order_override = order;
+}
+
+void fw_cfg_reset_order_override(FWCfgState *s)
+{
+ assert(s->fw_cfg_order_override != 0);
+ s->fw_cfg_order_override = 0;
+}
+
+/*
+ * This is the legacy order list. For legacy systems, files are in
+ * the fw_cfg in the order defined below, by the "order" value. Note
+ * that some entries (VGA ROMs, NIC option ROMS, etc.) go into a
+ * specific area, but there may be more than one and they occur in the
+ * order that the user specifies them on the command line. Those are
+ * handled in a special manner, using the order override above.
+ *
+ * For non-legacy, the files are sorted by filename to avoid this kind
+ * of complexity in the future.
+ *
+ * This is only for x86, other arches don't implement versioning so
+ * they won't set legacy mode.
+ */
+static struct {
+ const char *name;
+ int order;
+} fw_cfg_order[] = {
+ { "etc/boot-menu-wait", 10 },
+ { "bootsplash.jpg", 11 },
+ { "bootsplash.bmp", 12 },
+ { "etc/boot-fail-wait", 15 },
+ { "etc/smbios/smbios-tables", 20 },
+ { "etc/smbios/smbios-anchor", 30 },
+ { "etc/e820", 40 },
+ { "etc/reserved-memory-end", 50 },
+ { "genroms/kvmvapic.bin", 55 },
+ { "genroms/linuxboot.bin", 60 },
+ { }, /* VGA ROMs from pc_vga_init come here, 70. */
+ { }, /* NIC option ROMs from pc_nic_init come here, 80. */
+ { "etc/system-states", 90 },
+ { }, /* User ROMs come here, 100. */
+ { }, /* Device FW comes here, 110. */
+ { "etc/extra-pci-roots", 120 },
+ { "etc/acpi/tables", 130 },
+ { "etc/table-loader", 140 },
+ { "etc/tpm/log", 150 },
+ { "etc/acpi/rsdp", 160 },
+ { "bootorder", 170 },
+
+#define FW_CFG_ORDER_OVERRIDE_LAST 200
+};
+
+static int get_fw_cfg_order(FWCfgState *s, const char *name)
+{
+ int i;
+
+ if (s->fw_cfg_order_override > 0) {
+ return s->fw_cfg_order_override;
+ }
+
+ for (i = 0; i < ARRAY_SIZE(fw_cfg_order); i++) {
+ if (fw_cfg_order[i].name == NULL) {
+ continue;
+ }
+
+ if (strcmp(name, fw_cfg_order[i].name) == 0) {
+ return fw_cfg_order[i].order;
+ }
+ }
+
+ /* Stick unknown stuff at the end. */
+ error_report("warning: Unknown firmware file in legacy mode: %s", name);
+ return FW_CFG_ORDER_OVERRIDE_LAST;
+}
+
void fw_cfg_add_file_callback(FWCfgState *s, const char *filename,
FWCfgReadCallback callback, void *callback_opaque,
void *data, size_t len)
{
- int i, index;
+ int i, index, count;
size_t dsize;
+ MachineClass *mc = MACHINE_GET_CLASS(qdev_get_machine());
+ int order = 0;
if (!s->files) {
dsize = sizeof(uint32_t) + sizeof(FWCfgFile) * FW_CFG_FILE_SLOTS;
fw_cfg_add_bytes(s, FW_CFG_FILE_DIR, s->files, dsize);
}
- index = be32_to_cpu(s->files->count);
- assert(index < FW_CFG_FILE_SLOTS);
+ count = be32_to_cpu(s->files->count);
+ assert(count < FW_CFG_FILE_SLOTS);
- pstrcpy(s->files->f[index].name, sizeof(s->files->f[index].name),
- filename);
- for (i = 0; i < index; i++) {
- if (strcmp(s->files->f[index].name, s->files->f[i].name) == 0) {
+ /* Find the insertion point. */
+ if (mc->legacy_fw_cfg_order) {
+ /*
+ * Sort by order. For files with the same order, we keep them
+ * in the sequence in which they were added.
+ */
+ order = get_fw_cfg_order(s, filename);
+ for (index = count;
+ index > 0 && order < s->entry_order[index - 1];
+ index--);
+ } else {
+ /* Sort by file name. */
+ for (index = count;
+ index > 0 && strcmp(filename, s->files->f[index - 1].name) < 0;
+ index--);
+ }
+
+ /*
+ * Move all the entries from the index point and after down one
+ * to create a slot for the new entry. Because calculations are
+ * being done with the index, make it so that "i" is the current
+ * index and "i - 1" is the one being copied from, thus the
+ * unusual start and end in the for statement.
+ */
+ for (i = count + 1; i > index; i--) {
+ s->files->f[i] = s->files->f[i - 1];
+ s->files->f[i].select = cpu_to_be16(FW_CFG_FILE_FIRST + i);
+ s->entries[0][FW_CFG_FILE_FIRST + i] =
+ s->entries[0][FW_CFG_FILE_FIRST + i - 1];
+ s->entry_order[i] = s->entry_order[i - 1];
+ }
+
+ memset(&s->files->f[index], 0, sizeof(FWCfgFile));
+ memset(&s->entries[0][FW_CFG_FILE_FIRST + index], 0, sizeof(FWCfgEntry));
+
+ pstrcpy(s->files->f[index].name, sizeof(s->files->f[index].name), filename);
+ for (i = 0; i <= count; i++) {
+ if (i != index &&
+ strcmp(s->files->f[index].name, s->files->f[i].name) == 0) {
error_report("duplicate fw_cfg file name: %s",
s->files->f[index].name);
exit(1);
s->files->f[index].size = cpu_to_be32(len);
s->files->f[index].select = cpu_to_be16(FW_CFG_FILE_FIRST + index);
+ s->entry_order[index] = order;
trace_fw_cfg_add_file(s, index, s->files->f[index].name, len);
- s->files->count = cpu_to_be32(index+1);
+ s->files->count = cpu_to_be32(count+1);
}
void fw_cfg_add_file(FWCfgState *s, const char *filename,
static void fw_cfg_init1(DeviceState *dev)
{
FWCfgState *s = FW_CFG(dev);
+ MachineState *machine = MACHINE(qdev_get_machine());
assert(!object_resolve_path(FW_CFG_PATH, NULL));
- object_property_add_child(qdev_get_machine(), FW_CFG_NAME, OBJECT(s), NULL);
+ object_property_add_child(OBJECT(machine), FW_CFG_NAME, OBJECT(s), NULL);
qdev_init_nofail(dev);
fw_cfg_add_bytes(s, FW_CFG_SIGNATURE, (char *)"QEMU", 4);
- fw_cfg_add_bytes(s, FW_CFG_UUID, qemu_uuid, 16);
- fw_cfg_add_i16(s, FW_CFG_NOGRAPHIC, (uint16_t)(display_type == DT_NOGRAPHIC));
+ fw_cfg_add_bytes(s, FW_CFG_UUID, &qemu_uuid, 16);
+ fw_cfg_add_i16(s, FW_CFG_NOGRAPHIC, (uint16_t)!machine->enable_graphics);
fw_cfg_add_i16(s, FW_CFG_NB_CPUS, (uint16_t)smp_cpus);
fw_cfg_add_i16(s, FW_CFG_BOOT_MENU, (uint16_t)boot_menu);
fw_cfg_bootsplash(s);
static const TypeInfo fw_cfg_info = {
.name = TYPE_FW_CFG,
.parent = TYPE_SYS_BUS_DEVICE,
+ .abstract = true,
.instance_size = sizeof(FWCfgState),
.class_init = fw_cfg_class_init,
};
FWCfgIoState *s = FW_CFG_IO(dev);
SysBusDevice *sbd = SYS_BUS_DEVICE(dev);
+ /* when using port i/o, the 8-bit data register ALWAYS overlaps
+ * with half of the 16-bit control register. Hence, the total size
+ * of the i/o region used is FW_CFG_CTL_SIZE */
memory_region_init_io(&s->comb_iomem, OBJECT(s), &fw_cfg_comb_mem_ops,
FW_CFG(s), "fwcfg", FW_CFG_CTL_SIZE);
sysbus_add_io(sbd, s->iobase, &s->comb_iomem);
projects / qemu.git / blobdiff