*/
#include <palacios/vmm.h>
+#include <palacios/vmm_dev_mgr.h>
#include <palacios/vm_guest_mem.h>
#include <devices/ide.h>
#include <devices/pci.h>
#include "ide-types.h"
#include "atapi-types.h"
-#ifndef DEBUG_IDE
+#ifndef CONFIG_DEBUG_IDE
#undef PrintDebug
#define PrintDebug(fmt, args...)
#endif
#define DATA_BUFFER_SIZE 2048
+#define ATAPI_BLOCK_SIZE 2048
+#define HD_SECTOR_SIZE 512
+
+
static const char * ide_pri_port_strs[] = {"PRI_DATA", "PRI_FEATURES", "PRI_SECT_CNT", "PRI_SECT_NUM",
"PRI_CYL_LOW", "PRI_CYL_HIGH", "PRI_DRV_SEL", "PRI_CMD",
"PRI_CTRL", "PRI_ADDR_REG"};
"DMA_PRD0", "DMA_PRD1", "DMA_PRD2", "DMA_PRD3"};
+typedef enum {BLOCK_NONE, BLOCK_DISK, BLOCK_CDROM} v3_block_type_t;
static inline const char * io_port_to_str(uint16_t port) {
if ((port >= PRI_DATA_PORT) && (port <= PRI_CMD_PORT)) {
}
-static const char * ide_dev_type_strs[] = {"NONE", "HARDDISK", "CDROM" };
-
-
-static inline const char * device_type_to_str(v3_ide_dev_type_t type) {
- if (type > 2) {
- return NULL;
- }
-
- return ide_dev_type_strs[type];
-}
-
-
struct ide_cd_state {
struct atapi_sense_data sense;
struct ide_drive {
// Command Registers
- v3_ide_dev_type_t drive_type;
-
- union {
- struct v3_ide_cd_ops * cd_ops;
- struct v3_ide_hd_ops * hd_ops;
- };
+ v3_block_type_t drive_type;
+ struct v3_dev_blk_ops * ops;
union {
struct ide_cd_state cd_state;
/* Drive Commands */
static void ide_raise_irq(struct vm_device * dev, struct ide_channel * channel) {
if (channel->ctrl_reg.irq_disable == 0) {
- PrintDebug("Raising IDE Interrupt %d\n", channel->irq);
- channel->dma_status.int_gen = 1;
- v3_raise_irq(dev->vm, channel->irq);
+ // PrintError("Raising IDE Interrupt %d\n", channel->irq);
+ channel->dma_status.int_gen = 1;
+ v3_raise_irq(dev->vm, channel->irq);
}
}
PrintDebug("Resetting drive %s\n", drive->model);
- if (drive->drive_type == IDE_CDROM) {
+ if (drive->drive_type == BLOCK_CDROM) {
drive->cylinder = 0xeb14;
} else {
drive->cylinder = 0x0000;
#include "ata.h"
-#ifdef DEBUG_IDE
+#ifdef CONFIG_DEBUG_IDE
static void print_prd_table(struct vm_device * dev, struct ide_channel * channel) {
struct ide_dma_prd prd_entry;
int index = 0;
// Read in the data buffer....
// Read a sector/block at a time until the prd entry is full.
-#ifdef DEBUG_IDE
+#ifdef CONFIG_DEBUG_IDE
print_prd_table(dev, channel);
#endif
while (prd_bytes_left > 0) {
uint_t bytes_to_write = 0;
- if (drive->drive_type == IDE_DISK) {
- bytes_to_write = (prd_bytes_left > IDE_SECTOR_SIZE) ? IDE_SECTOR_SIZE : prd_bytes_left;
+ if (drive->drive_type == BLOCK_DISK) {
+ bytes_to_write = (prd_bytes_left > HD_SECTOR_SIZE) ? HD_SECTOR_SIZE : prd_bytes_left;
if (ata_read(dev, channel, drive->data_buf, 1) == -1) {
PrintError("Failed to read next disk sector\n");
return -1;
}
- } else if (drive->drive_type == IDE_CDROM) {
+ } else if (drive->drive_type == BLOCK_CDROM) {
if (atapi_cmd_is_data_op(drive->cd_state.atapi_cmd)) {
bytes_to_write = (prd_bytes_left > ATAPI_BLOCK_SIZE) ? ATAPI_BLOCK_SIZE : prd_bytes_left;
channel->dma_tbl_index++;
- if (drive->drive_type == IDE_DISK) {
- if (drive->transfer_index % IDE_SECTOR_SIZE) {
+ if (drive->drive_type == BLOCK_DISK) {
+ if (drive->transfer_index % HD_SECTOR_SIZE) {
PrintError("We currently don't handle sectors that span PRD descriptors\n");
return -1;
}
- } else if (drive->drive_type == IDE_CDROM) {
+ } else if (drive->drive_type == BLOCK_CDROM) {
if (atapi_cmd_is_data_op(drive->cd_state.atapi_cmd)) {
if (drive->transfer_index % ATAPI_BLOCK_SIZE) {
PrintError("We currently don't handle ATAPI BLOCKS that span PRD descriptors\n");
uint_t bytes_to_write = 0;
- bytes_to_write = (prd_bytes_left > IDE_SECTOR_SIZE) ? IDE_SECTOR_SIZE : prd_bytes_left;
+ bytes_to_write = (prd_bytes_left > HD_SECTOR_SIZE) ? HD_SECTOR_SIZE : prd_bytes_left;
ret = read_guest_pa_memory(dev->vm, prd_entry.base_addr + prd_offset, bytes_to_write, drive->data_buf);
channel->dma_tbl_index++;
- if (drive->transfer_index % IDE_SECTOR_SIZE) {
+ if (drive->transfer_index % HD_SECTOR_SIZE) {
PrintError("We currently don't handle sectors that span PRD descriptors\n");
return -1;
}
#define DMA_CHANNEL_FLAG 0x08
-static int write_dma_port(ushort_t port, void * src, uint_t length, struct vm_device * dev) {
+static int write_dma_port(ushort_t port, void * src, uint_t length, void * private_data) {
+ struct vm_device * dev = (struct vm_device *)private_data;
struct ide_internal * ide = (struct ide_internal *)(dev->private_data);
uint16_t port_offset = port & (DMA_CHANNEL_FLAG - 1);
uint_t channel_flag = (port & DMA_CHANNEL_FLAG) >> 3;
}
-static int read_dma_port(ushort_t port, void * dst, uint_t length, struct vm_device * dev) {
+static int read_dma_port(ushort_t port, void * dst, uint_t length, void * private_data) {
+ struct vm_device * dev = (struct vm_device *)private_data;
struct ide_internal * ide = (struct ide_internal *)(dev->private_data);
uint16_t port_offset = port & (DMA_CHANNEL_FLAG - 1);
uint_t channel_flag = (port & DMA_CHANNEL_FLAG) >> 3;
switch (channel->cmd_reg) {
case 0xa1: // ATAPI Identify Device Packet
- if (drive->drive_type != IDE_CDROM) {
+ if (drive->drive_type != BLOCK_CDROM) {
drive_reset(drive);
// JRL: Should we abort here?
}
break;
case 0xec: // Identify Device
- if (drive->drive_type != IDE_DISK) {
+ if (drive->drive_type != BLOCK_DISK) {
drive_reset(drive);
// JRL: Should we abort here?
break;
case 0xa0: // ATAPI Command Packet
- if (drive->drive_type != IDE_CDROM) {
+ if (drive->drive_type != BLOCK_CDROM) {
ide_abort_command(dev, channel);
}
drive->hd_state.cur_sector_num = 1;
- drive->transfer_length = sect_cnt * IDE_SECTOR_SIZE;
+ drive->transfer_length = sect_cnt * HD_SECTOR_SIZE;
drive->transfer_index = 0;
if (channel->dma_status.active == 1) {
drive->hd_state.cur_sector_num = 1;
- drive->transfer_length = sect_cnt * IDE_SECTOR_SIZE;
+ drive->transfer_length = sect_cnt * HD_SECTOR_SIZE;
drive->transfer_index = 0;
if (channel->dma_status.active == 1) {
static int read_hd_data(uint8_t * dst, uint_t length, struct vm_device * dev, struct ide_channel * channel) {
struct ide_drive * drive = get_selected_drive(channel);
- int data_offset = drive->transfer_index % IDE_SECTOR_SIZE;
+ int data_offset = drive->transfer_index % HD_SECTOR_SIZE;
* cur_sector_num is configured depending on the operation we are currently running
* We also trigger an interrupt if this is the last byte to transfer, regardless of sector count
*/
- if (((drive->transfer_index % (IDE_SECTOR_SIZE * drive->hd_state.cur_sector_num)) == 0) ||
+ if (((drive->transfer_index % (HD_SECTOR_SIZE * drive->hd_state.cur_sector_num)) == 0) ||
(drive->transfer_index == drive->transfer_length)) {
if (drive->transfer_index < drive->transfer_length) {
// An increment is complete, but there is still more data to be transferred...
struct ide_channel * channel = get_selected_channel(ide, port);
struct ide_drive * drive = get_selected_drive(channel);
- // PrintDebug("IDE: Reading Data Port %x (len=%d)\n", port, length);
+ PrintDebug("IDE: Reading Data Port %x (len=%d)\n", port, length);
if ((channel->cmd_reg == 0xec) ||
(channel->cmd_reg == 0xa1)) {
return read_drive_id((uint8_t *)dst, length, dev, channel);
}
- if (drive->drive_type == IDE_CDROM) {
+ if (drive->drive_type == BLOCK_CDROM) {
if (read_cd_data((uint8_t *)dst, length, dev, channel) == -1) {
PrintError("IDE: Could not read CD Data\n");
return -1;
}
- } else if (drive->drive_type == IDE_DISK) {
+ } else if (drive->drive_type == BLOCK_DISK) {
if (read_hd_data((uint8_t *)dst, length, dev, channel) == -1) {
PrintError("IDE: Could not read HD Data\n");
return -1;
drive = get_selected_drive(channel);
// Selecting a non-present device is a no-no
- if (drive->drive_type == IDE_NONE) {
+ if (drive->drive_type == BLOCK_NONE) {
PrintDebug("Attempting to select a non-present drive\n");
channel->error_reg.abort = 1;
channel->status.error = 1;
// if no drive is present just return 0 + reserved bits
- if (drive->drive_type == IDE_NONE) {
+ if (drive->drive_type == BLOCK_NONE) {
if ((port == PRI_DRV_SEL_PORT) ||
(port == SEC_DRV_SEL_PORT)) {
*(uint8_t *)dst = 0xa0;
drive->sector_num = 0x01;
drive->cylinder = 0x0000;
- drive->drive_type = IDE_NONE;
+ drive->drive_type = BLOCK_NONE;
memset(drive->model, 0, sizeof(drive->model));
drive->private_data = NULL;
- drive->cd_ops = NULL;
+ drive->ops = NULL;
}
static void init_channel(struct ide_channel * channel) {
}
-static int pci_config_update(struct pci_device * pci_dev, uint_t reg_num, int length) {
+static int pci_config_update(uint_t reg_num, void * src, uint_t length, void * private_data) {
PrintDebug("PCI Config Update\n");
PrintDebug("\t\tInterupt register (Dev=%s), irq=%d\n", pci_dev->name, pci_dev->config_header.intr_line);
-static int init_ide(struct vm_device * dev) {
- struct ide_internal * ide = (struct ide_internal *)(dev->private_data);
+
+static int ide_free(struct vm_device * dev) {
+ // unhook io ports....
+ // deregister from PCI?
+ return 0;
+}
+
+
+static struct v3_device_ops dev_ops = {
+ .free = ide_free,
+ .reset = NULL,
+ .start = NULL,
+ .stop = NULL,
+};
+
+
+
+
+static int connect_fn(struct guest_info * info,
+ void * frontend_data,
+ struct v3_dev_blk_ops * ops,
+ v3_cfg_tree_t * cfg,
+ void * private_data) {
+ struct ide_internal * ide = (struct ide_internal *)(frontend_data);
+ struct ide_channel * channel = NULL;
+ struct ide_drive * drive = NULL;
+
+ char * bus_str = v3_cfg_val(cfg, "bus_num");
+ char * drive_str = v3_cfg_val(cfg, "drive_num");
+ char * type_str = v3_cfg_val(cfg, "type");
+ char * model_str = v3_cfg_val(cfg, "model");
+ uint_t bus_num = 0;
+ uint_t drive_num = 0;
+
+
+ if ((!type_str) || (!drive_str) || (!bus_str)) {
+ PrintError("Incomplete IDE Configuration\n");
+ return -1;
+ }
+
+ bus_num = atoi(bus_str);
+ drive_num = atoi(drive_str);
+
+ channel = &(ide->channels[bus_num]);
+ drive = &(channel->drives[drive_num]);
+
+ if (drive->drive_type != BLOCK_NONE) {
+ PrintError("Device slot (bus=%d, drive=%d) already occupied\n", bus_num, drive_num);
+ return -1;
+ }
+
+ strncpy(drive->model, model_str, sizeof(drive->model) - 1);
+
+ if (strcasecmp(type_str, "cdrom") == 0) {
+ drive->drive_type = BLOCK_CDROM;
+
+ while (strlen((char *)(drive->model)) < 40) {
+ strcat((char*)(drive->model), " ");
+ }
+
+ } else if (strcasecmp(type_str, "hd") == 0) {
+ drive->drive_type = BLOCK_DISK;
+
+ drive->hd_state.accessed = 0;
+ drive->hd_state.mult_sector_num = 1;
+
+ drive->num_sectors = 63;
+ drive->num_heads = 16;
+ drive->num_cylinders = ops->get_capacity(private_data) / (drive->num_sectors * drive->num_heads);
+ } else {
+ PrintError("invalid IDE drive type\n");
+ return -1;
+ }
+
+
+ drive->ops = ops;
+
+ if (ide->ide_pci) {
+ // Hardcode this for now, but its not a good idea....
+ ide->ide_pci->config_space[0x41 + (bus_num * 2)] = 0x80;
+ }
+
+ drive->private_data = private_data;
+
+ return 0;
+}
+
+
+
+
+static int ide_init(struct guest_info * vm, v3_cfg_tree_t * cfg) {
+ struct ide_internal * ide = (struct ide_internal *)V3_Malloc(sizeof(struct ide_internal));
+ char * name = v3_cfg_val(cfg, "name");
PrintDebug("IDE: Initializing IDE\n");
+ memset(ide, 0, sizeof(struct ide_internal));
+
+
+ ide->pci_bus = v3_find_dev(vm, v3_cfg_val(cfg, "bus"));
+
+ if (ide->pci_bus != NULL) {
+ struct vm_device * southbridge = v3_find_dev(vm, v3_cfg_val(cfg, "controller"));
+
+ if (!southbridge) {
+ PrintError("Could not find southbridge\n");
+ return -1;
+ }
+
+ ide->southbridge = (struct v3_southbridge *)(southbridge->private_data);
+ }
+
+ PrintDebug("IDE: Creating IDE bus x 2\n");
+
+ struct vm_device * dev = v3_allocate_device(name, &dev_ops, ide);
+
+ if (v3_attach_device(vm, dev) == -1) {
+ PrintError("Could not attach device %s\n", name);
+ return -1;
+ }
if (init_ide_state(dev) == -1) {
PrintError("Failed to initialize IDE state\n");
}
bars[4].type = PCI_BAR_IO;
- bars[4].default_base_port = PRI_DEFAULT_DMA_PORT;
+ // bars[4].default_base_port = PRI_DEFAULT_DMA_PORT;
+ bars[4].default_base_port = -1;
bars[4].num_ports = 16;
bars[4].io_read = read_dma_port;
bars[4].io_write = write_dma_port;
-
+ bars[4].private_data = dev;
+
pci_dev = v3_pci_register_device(ide->pci_bus, PCI_STD_DEVICE, 0, sb_pci->dev_num, 1,
"PIIX3_IDE", bars,
pci_config_update, NULL, NULL, dev);
pci_dev->config_header.device_id = 0x7010;
pci_dev->config_header.revision = 0x00;
- pci_dev->config_header.prog_if = 0x80;
- pci_dev->config_header.subclass = 0x01;
- pci_dev->config_header.class = 0x01;
+ pci_dev->config_header.prog_if = 0x80; // Master IDE device
+ pci_dev->config_header.subclass = PCI_STORAGE_SUBCLASS_IDE;
+ pci_dev->config_header.class = PCI_CLASS_STORAGE;
pci_dev->config_header.command = 0;
pci_dev->config_header.status = 0x0280;
}
- PrintDebug("IDE Initialized\n");
-
- return 0;
-}
+ if (v3_dev_add_blk_frontend(vm, name, connect_fn, (void *)ide) == -1) {
+ PrintError("Could not register %s as frontend\n", name);
+ return -1;
+ }
+
+ PrintDebug("IDE Initialized\n");
-static int deinit_ide(struct vm_device * dev) {
- // unhook io ports....
- // deregister from PCI?
return 0;
}
-static struct vm_device_ops dev_ops = {
- .init = init_ide,
- .deinit = deinit_ide,
- .reset = NULL,
- .start = NULL,
- .stop = NULL,
-};
-
-
-struct vm_device * v3_create_ide(struct vm_device * pci_bus, struct vm_device * southbridge_dev) {
- struct ide_internal * ide = (struct ide_internal *)V3_Malloc(sizeof(struct ide_internal));
-
- memset(ide, 0, sizeof(struct ide_internal));
-
- struct vm_device * device = v3_create_device("IDE", &dev_ops, ide);
-
- if (pci_bus != NULL) {
- if (southbridge_dev == NULL) {
- PrintError("PCI Enabled BUT southbridge is NULL\n");
- return NULL;
- }
-
- ide->pci_bus = pci_bus;
- ide->southbridge = (struct v3_southbridge *)(southbridge_dev->private_data);
- }
-
-
- PrintDebug("IDE: Creating IDE bus x 2\n");
+device_register("IDE", ide_init)
- return device;
-}
struct ide_channel * channel = &(ide->channels[channel_num]);
struct ide_drive * drive = &(channel->drives[drive_num]);
- if (drive->drive_type == IDE_NONE) {
+ if (drive->drive_type == BLOCK_NONE) {
return -1;
}
-
-int v3_ide_register_cdrom(struct vm_device * ide_dev,
- uint_t bus_num,
- uint_t drive_num,
- char * dev_name,
- struct v3_ide_cd_ops * ops,
- void * private_data) {
-
- struct ide_internal * ide = (struct ide_internal *)(ide_dev->private_data);
- struct ide_channel * channel = NULL;
- struct ide_drive * drive = NULL;
-
- V3_ASSERT((bus_num >= 0) && (bus_num < 2));
- V3_ASSERT((drive_num >= 0) && (drive_num < 2));
-
- channel = &(ide->channels[bus_num]);
- drive = &(channel->drives[drive_num]);
-
- if (drive->drive_type != IDE_NONE) {
- PrintError("Device slot (bus=%d, drive=%d) already occupied\n", bus_num, drive_num);
- return -1;
- }
-
- strncpy(drive->model, dev_name, sizeof(drive->model) - 1);
-
- while (strlen((char *)(drive->model)) < 40) {
- strcat((char*)(drive->model), " ");
- }
-
-
- drive->drive_type = IDE_CDROM;
-
- drive->cd_ops = ops;
-
- if (ide->ide_pci) {
- // Hardcode this for now, but its not a good idea....
- ide->ide_pci->config_space[0x41 + (bus_num * 2)] = 0x80;
- }
-
- drive->private_data = private_data;
-
- return 0;
-}
-
-
-int v3_ide_register_harddisk(struct vm_device * ide_dev,
- uint_t bus_num,
- uint_t drive_num,
- char * dev_name,
- struct v3_ide_hd_ops * ops,
- void * private_data) {
-
- struct ide_internal * ide = (struct ide_internal *)(ide_dev->private_data);
- struct ide_channel * channel = NULL;
- struct ide_drive * drive = NULL;
-
- V3_ASSERT((bus_num >= 0) && (bus_num < 2));
- V3_ASSERT((drive_num >= 0) && (drive_num < 2));
-
- channel = &(ide->channels[bus_num]);
- drive = &(channel->drives[drive_num]);
-
- if (drive->drive_type != IDE_NONE) {
- PrintError("Device slot (bus=%d, drive=%d) already occupied\n", bus_num, drive_num);
- return -1;
- }
-
- strncpy(drive->model, dev_name, sizeof(drive->model) - 1);
-
- drive->drive_type = IDE_DISK;
-
- drive->hd_state.accessed = 0;
- drive->hd_state.mult_sector_num = 1;
-
- drive->hd_ops = ops;
-
- /* this is something of a hack... */
- drive->num_sectors = 63;
- drive->num_heads = 16;
- drive->num_cylinders = ops->get_capacity(private_data) / (drive->num_sectors * drive->num_heads);
-
- if (ide->ide_pci) {
- // Hardcode this for now, but its not a good idea....
- ide->ide_pci->config_space[0x41 + (bus_num * 2)] = 0x80;
- }
-
-
-
- drive->private_data = private_data;
-
- return 0;
-}
-
-
-
