int arch_board_ram_size(physical_size_t * size)
{
int rc = VMM_OK;
struct fdt_fileinfo fdt;
struct fdt_node_header * fdt_node;
struct fdt_property * prop;
rc = libfdt_parse_fileinfo((virtual_addr_t) & dt_blob_start, &fdt);
if (rc) {
return rc;
}
fdt_node = libfdt_find_node(&fdt,
VMM_DEVTREE_PATH_SEPARATOR_STRING
VMM_DEVTREE_HOSTINFO_NODE_NAME
VMM_DEVTREE_PATH_SEPARATOR_STRING
VMM_DEVTREE_MEMORY_NODE_NAME);
if (!fdt_node) {
return VMM_EFAIL;
}
prop = libfdt_get_property(&fdt, fdt_node,
VMM_DEVTREE_MEMORY_PHYS_SIZE_ATTR_NAME);
if (!prop) {
return VMM_EFAIL;
}
*size = *((physical_size_t *)prop->data);
return VMM_OK;
}
int arch_devtree_reserve_size(u32 index, physical_size_t *size)
{
u64 tmp;
int rc = VMM_OK;
struct fdt_fileinfo fdt;
if (load_bank_resv_sz) {
if (index == 0) {
*size = load_bank_resv_sz;
return VMM_OK;
} else {
index -= 1;
}
}
rc = libfdt_parse_fileinfo((virtual_addr_t)&dt_blob_start, &fdt);
if (rc) {
return rc;
}
rc = libfdt_reserve_size(&fdt, index, &tmp);
if (rc) {
return rc;
}
*size = (physical_size_t)tmp;
return VMM_OK;
}
int arch_board_ram_start(physical_addr_t * addr)
{
int rc = VMM_OK;
struct fdt_fileinfo fdt;
struct fdt_node_header * fdt_node = NULL;
struct fdt_property * prop = NULL;
physical_addr_t *phys_adr = NULL;
rc = libfdt_parse_fileinfo((virtual_addr_t) & dt_blob_start, &fdt);
if (rc) {
return rc;
}
fdt_node = libfdt_find_node(&fdt,
VMM_DEVTREE_PATH_SEPARATOR_STRING
VMM_DEVTREE_HOSTINFO_NODE_NAME
VMM_DEVTREE_PATH_SEPARATOR_STRING
VMM_DEVTREE_MEMORY_NODE_NAME);
if (!fdt_node) {
return VMM_EFAIL;
}
prop = libfdt_get_property(&fdt, fdt_node,
VMM_DEVTREE_MEMORY_PHYS_ADDR_ATTR_NAME);
if (!prop) {
return VMM_EFAIL;
}
phys_adr = (physical_addr_t *)prop->data;
*addr = *phys_adr;
return VMM_OK;
}
int arch_devtree_ram_start(physical_addr_t *addr)
{
#if 0
int rc = VMM_OK;
struct fdt_fileinfo fdt;
struct fdt_node_header *fdt_node;
physical_addr_t data[2];
rc = libfdt_parse_fileinfo((virtual_addr_t)&dt_blob_start, &fdt);
if (rc) {
return rc;
}
fdt_node = libfdt_find_node(&fdt,
VMM_DEVTREE_PATH_SEPARATOR_STRING
VMM_DEVTREE_MEMORY_NODE_NAME);
if (!fdt_node) {
return VMM_EFAIL;
}
rc = libfdt_get_property(&fdt, fdt_node,
VMM_DEVTREE_REG_ATTR_NAME, data);
if (rc) {
return rc;
}
*addr = data[0];
#else
*addr = 0x100000UL;
#endif
return VMM_OK;
}
int arch_devtree_populate(struct vmm_devtree_node **root)
{
int rc = VMM_OK;
struct fdt_fileinfo fdt;
/* Parse skeletal FDT */
rc = libfdt_parse_fileinfo((virtual_addr_t) & dt_blob_start, &fdt);
if (rc) {
return rc;
}
/* Populate skeletal FDT */
rc = libfdt_parse_devtree(&fdt, root);
if (rc) {
return rc;
}
/* FIXME: Populate device tree from ACPI table */
#if CONFIG_ACPI
/*
* Initialize the ACPI table to help initialize
* other devices.
*/
acpi_init();
#endif
return VMM_OK;
}
int arch_board_ram_start(physical_addr_t *addr)
{
int rc = VMM_OK;
struct fdt_fileinfo fdt;
struct fdt_node_header *fdt_node;
*addr = 0xffffffff;
if (libfdt_parse_fileinfo((virtual_addr_t) & dt_blob_start, &fdt)) {
return VMM_EFAIL;
}
fdt_node = libfdt_find_node(&fdt,
VMM_DEVTREE_PATH_SEPARATOR_STRING
VMM_DEVTREE_HOSTINFO_NODE_NAME
VMM_DEVTREE_PATH_SEPARATOR_STRING
VMM_DEVTREE_MEMORY_NODE_NAME);
if (!fdt_node) {
return VMM_EFAIL;
}
rc = libfdt_get_property(&fdt, fdt_node,
VMM_DEVTREE_MEMORY_PHYS_ADDR_ATTR_NAME, addr);
if (rc) {
return rc;
}
return VMM_OK;
}
int arch_board_devtree_populate(struct vmm_devtree_node **root)
{
struct fdt_fileinfo fdt;
if (libfdt_parse_fileinfo((virtual_addr_t) & dt_blob_start, &fdt)) {
return VMM_EFAIL;
}
return libfdt_parse_devtree(&fdt, root);
}
int arch_devtree_populate(struct vmm_devtree_node **root)
{
int rc = VMM_OK;
struct fdt_fileinfo fdt;
rc = libfdt_parse_fileinfo((virtual_addr_t)&dt_blob_start, &fdt);
if (rc) {
return rc;
}
return libfdt_parse_devtree(&fdt, root, "\0", NULL);
}
int arch_devtree_reserve_count(u32 *count)
{
int rc = VMM_OK;
struct fdt_fileinfo fdt;
rc = libfdt_parse_fileinfo((virtual_addr_t)&dt_blob_start, &fdt);
if (rc) {
return rc;
}
*count = libfdt_reserve_count(&fdt);
return VMM_OK;
}
int arch_devtree_reserve_size(u32 index, physical_size_t *size)
{
u64 tmp;
int rc = VMM_OK;
struct fdt_fileinfo fdt;
rc = libfdt_parse_fileinfo((virtual_addr_t)&dt_blob_start, &fdt);
if (rc) {
return rc;
}
rc = libfdt_reserve_size(&fdt, index, &tmp);
if (rc) {
return rc;
}
*size = (physical_size_t)tmp;
return VMM_OK;
}
int arch_devtree_ram_bank_setup(void)
{
int rc = VMM_OK;
physical_addr_t tmp;
struct match_info info;
struct fdt_fileinfo fdt;
struct fdt_node_header *fdt_root;
struct fdt_node_header *fdt_node;
u32 i, j, address_cells, size_cells;
address_cells = sizeof(physical_addr_t) / sizeof(fdt_cell_t);
size_cells = sizeof(physical_size_t) / sizeof(fdt_cell_t);
rc = libfdt_parse_fileinfo((virtual_addr_t)&dt_blob_start, &fdt);
if (rc) {
return rc;
}
fdt_root = libfdt_find_node(&fdt,
VMM_DEVTREE_PATH_SEPARATOR_STRING);
if (!fdt_root) {
return VMM_EFAIL;
}
rc = libfdt_get_property(&fdt, fdt_root, address_cells, size_cells,
VMM_DEVTREE_ADDR_CELLS_ATTR_NAME,
&i, sizeof(i));
if (!rc) {
address_cells = i;
}
rc = libfdt_get_property(&fdt, fdt_root, address_cells, size_cells,
VMM_DEVTREE_SIZE_CELLS_ATTR_NAME,
&i, sizeof(i));
if (!rc) {
size_cells = i;
}
info.fdt = &fdt;
info.address_cells = address_cells;
info.size_cells = size_cells;
fdt_node = libfdt_find_matching_node(&fdt, match_memory_node, &info);
if (!fdt_node) {
return VMM_EFAIL;
}
rc = libfdt_get_property(&fdt, fdt_node, address_cells, size_cells,
VMM_DEVTREE_ADDR_CELLS_ATTR_NAME,
&i, sizeof(i));
if (!rc) {
address_cells = i;
}
rc = libfdt_get_property(&fdt, fdt_node, address_cells, size_cells,
VMM_DEVTREE_SIZE_CELLS_ATTR_NAME,
&i, sizeof(i));
if (!rc) {
size_cells = i;
}
memset(bank_data, 0, sizeof(bank_data));
memset(dt_bank_data, 0, sizeof(dt_bank_data));
rc = libfdt_get_property(&fdt, fdt_node, address_cells, size_cells,
VMM_DEVTREE_REG_ATTR_NAME,
dt_bank_data, sizeof(dt_bank_data));
if (rc) {
return rc;
}
/* Remove Zero sized banks */
for (i = 0, j = 0 ; i < array_size(dt_bank_data); i += 2) {
if (dt_bank_data[i + 1]) {
bank_data[j] = dt_bank_data[i];
bank_data[j + 1] = dt_bank_data[i + 1];
j += 2;
}
}
/* Count of RAM banks */
bank_nr = 0;
for (i = 0; i < array_size(bank_data); i += 2) {
if (bank_data[i+1]) {
bank_nr++;
} else {
break;
}
}
if (!bank_nr) {
return VMM_OK;
}
/* Sort banks based on start address */
for (i = 0; i < (bank_nr - 1); i++) {
for (j = i+1; j < bank_nr; j++) {
if (bank_data[(2*i)] > bank_data[(2*j)]) {
tmp = bank_data[(2*i)];
bank_data[(2*i)] = bank_data[(2*j)];
bank_data[(2*j)] = tmp;
tmp = bank_data[(2*i)+1];
bank_data[(2*i)+1] = bank_data[(2*j)+1];
bank_data[(2*j)+1] = tmp;
}
}
}
/*
* For quite a few RISC-V systems, the RUNTIME M-mode firmware
* is located at start of a RAM bank. Unfortunately in most cases,
* the DTB passed to Xvisor (or Linux) does not have memreserve
* entry for the RUNTIME M-mode firmware. To be safe, we reserve
* RAM from start of the RAM bank to location where Xvisor is
* loaded in the RAM bank.
*/
load_bank_nr = 0;
load_bank_resv_pa = 0;
load_bank_resv_sz = 0;
for (i = 0; i < bank_nr; i++) {
if (bank_data[2*i] <= arch_code_paddr_start() &&
arch_code_paddr_start() < (bank_data[2*i] + bank_data[2*i + 1])) {
load_bank_nr = i;
load_bank_resv_pa = bank_data[2*i];
load_bank_resv_sz = arch_code_paddr_start() - bank_data[2*i];
break;
}
}
return VMM_OK;
}
static int cmd_vfs_fdt_load(struct vmm_chardev *cdev,
const char *devtree_path,
const char *devtree_root_name,
const char *path,
int aliasc, char **aliasv)
{
int a, fd, rc = VMM_OK;
char *astr;
const char *aname, *apath, *aattr, *atype;
size_t fdt_rd;
void *fdt_data, *val = NULL;
u32 val_type, val_len = 0;
struct stat st;
struct vmm_devtree_node *root, *anode, *node;
struct vmm_devtree_node *parent;
struct fdt_fileinfo fdt;
parent = vmm_devtree_getnode(devtree_path);
if (!parent) {
vmm_cprintf(cdev, "Devtree path %s does not exist.\n",
devtree_path);
return VMM_EINVALID;
}
root = vmm_devtree_getchild(parent, devtree_root_name);
if (root) {
vmm_devtree_dref_node(root);
vmm_cprintf(cdev, "Devtree path %s/%s already exist.\n",
devtree_path, devtree_root_name);
rc = VMM_EINVALID;
goto fail;
}
fd = vfs_open(path, O_RDONLY, 0);
if (fd < 0) {
vmm_cprintf(cdev, "Failed to open %s\n", path);
rc = fd;
goto fail;
}
rc = vfs_fstat(fd, &st);
if (rc) {
vmm_cprintf(cdev, "Path %s does not exist.\n", path);
goto fail_closefd;
}
if (!(st.st_mode & S_IFREG)) {
vmm_cprintf(cdev, "Path %s should be regular file.\n", path);
rc = VMM_EINVALID;
goto fail_closefd;
}
if (!st.st_size) {
vmm_cprintf(cdev, "File %s has zero %d bytes.\n", path);
rc = VMM_EINVALID;
goto fail_closefd;
}
if (st.st_size > VFS_MAX_FDT_SZ) {
vmm_cprintf(cdev, "File %s has size %d bytes (> %d bytes).\n",
path, (long)st.st_size, VFS_MAX_FDT_SZ);
rc = VMM_EINVALID;
goto fail_closefd;
}
fdt_data = vmm_zalloc(VFS_MAX_FDT_SZ);
if (!fdt_data) {
rc = VMM_ENOMEM;
goto fail_closefd;
}
fdt_rd = vfs_read(fd, fdt_data, VFS_MAX_FDT_SZ);
if (fdt_rd < st.st_size) {
rc = VMM_EIO;
goto fail_freedata;
}
rc = libfdt_parse_fileinfo((virtual_addr_t)fdt_data, &fdt);
if (rc) {
goto fail_freedata;
}
root = NULL;
rc = libfdt_parse_devtree(&fdt, &root, devtree_root_name, parent);
if (rc) {
goto fail_freedata;
}
anode = vmm_devtree_getchild(root, VMM_DEVTREE_ALIASES_NODE_NAME);
for (a = 0; a < aliasc; a++) {
if (!anode) {
vmm_cprintf(cdev, "Error: %s node not available\n",
VMM_DEVTREE_ALIASES_NODE_NAME);
continue;
}
astr = aliasv[a];
aname = astr;
while (*astr != '\0' && *astr != ',') {
astr++;
}
if (*astr == ',') {
*astr = '\0';
astr++;
}
if (*astr == '\0') {
continue;
}
aattr = astr;
while (*astr != '\0' && *astr != ',') {
astr++;
}
if (*astr == ',') {
*astr = '\0';
astr++;
}
if (*astr == '\0') {
continue;
}
atype = astr;
while (*astr != '\0' && *astr != ',') {
astr++;
}
if (*astr == ',') {
*astr = '\0';
astr++;
}
if (*astr == '\0') {
continue;
}
if (vmm_devtree_read_string(anode, aname, &apath)) {
vmm_cprintf(cdev, "Error: Failed to read %s attribute "
"of %s node\n", aname,
VMM_DEVTREE_ALIASES_NODE_NAME);
continue;
}
node = vmm_devtree_getchild(root, apath);
if (!node) {
vmm_cprintf(cdev, "Error: %s node not found under "
"%s/%s\n", apath, devtree_path,
devtree_root_name);
continue;
}
if (!strcmp(atype, "unknown")) {
val = NULL;
val_len = 0;
val_type = VMM_DEVTREE_MAX_ATTRTYPE;
} else if (!strcmp(atype, "string")) {
val_len = strlen(astr) + 1;
val = vmm_zalloc(val_len);
if (!val) {
vmm_cprintf(cdev, "Error: vmm_zalloc(%d) "
"failed\n", val_len);
goto next_iter;
}
strcpy(val, astr);
val_type = VMM_DEVTREE_ATTRTYPE_STRING;
} else if (!strcmp(atype, "bytes")) {
val_len = 1;
val = vmm_zalloc(val_len);
if (!val) {
vmm_cprintf(cdev, "Error: vmm_zalloc(%d) "
"failed\n", val_len);
goto next_iter;
}
*((u8 *)val) = strtoul(astr, NULL, 0);
val_type = VMM_DEVTREE_ATTRTYPE_BYTEARRAY;
} else if (!strcmp(atype, "uint32")) {
val_len = 4;
val = vmm_zalloc(val_len);
if (!val) {
vmm_cprintf(cdev, "Error: vmm_zalloc(%d) "
"failed\n", val_len);
goto next_iter;
}
*((u32 *)val) = strtoul(astr, NULL, 0);
val_type = VMM_DEVTREE_ATTRTYPE_UINT32;
} else if (!strcmp(atype, "uint64")) {
val_len = 8;
val = vmm_zalloc(val_len);
if (!val) {
vmm_cprintf(cdev, "Error: vmm_zalloc(%d) "
"failed\n", val_len);
goto next_iter;
}
*((u64 *)val) = strtoull(astr, NULL, 0);
val_type = VMM_DEVTREE_ATTRTYPE_UINT64;
} else if (!strcmp(atype, "physaddr")) {
val_len = sizeof(physical_addr_t);
val = vmm_zalloc(val_len);
if (!val) {
vmm_cprintf(cdev, "Error: vmm_zalloc(%d) "
"failed\n", val_len);
goto next_iter;
}
*((physical_addr_t *)val) = strtoull(astr, NULL, 0);
val_type = VMM_DEVTREE_ATTRTYPE_PHYSADDR;
} else if (!strcmp(atype, "physsize")) {
val_len = sizeof(physical_size_t);
val = vmm_zalloc(val_len);
if (!val) {
vmm_cprintf(cdev, "Error: vmm_zalloc(%d) "
"failed\n", val_len);
goto next_iter;
}
*((physical_size_t *)val) = strtoull(astr, NULL, 0);
val_type = VMM_DEVTREE_ATTRTYPE_PHYSSIZE;
} else if (!strcmp(atype, "virtaddr")) {
val_len = sizeof(virtual_addr_t);
val = vmm_zalloc(val_len);
if (!val) {
vmm_cprintf(cdev, "Error: vmm_zalloc(%d) "
"failed\n", val_len);
goto next_iter;
}
*((virtual_addr_t *)val) = strtoull(astr, NULL, 0);
val_type = VMM_DEVTREE_ATTRTYPE_VIRTADDR;
} else if (!strcmp(atype, "virtsize")) {
val_len = sizeof(virtual_size_t);
val = vmm_zalloc(val_len);
if (!val) {
vmm_cprintf(cdev, "Error: vmm_zalloc(%d) "
"failed\n", val_len);
goto next_iter;
}
*((virtual_size_t *)val) = strtoull(astr, NULL, 0);
val_type = VMM_DEVTREE_ATTRTYPE_VIRTSIZE;
} else {
vmm_cprintf(cdev, "Error: Invalid attribute type %s\n",
atype);
goto next_iter;
}
if (val && (val_len > 0)) {
vmm_devtree_setattr(node, aattr, val,
val_type, val_len, FALSE);
vmm_free(val);
}
next_iter:
vmm_devtree_dref_node(node);
}
vmm_devtree_dref_node(anode);
fail_freedata:
vmm_free(fdt_data);
fail_closefd:
vfs_close(fd);
fail:
vmm_devtree_dref_node(parent);
return rc;
}
int arch_devtree_ram_start(physical_addr_t *addr)
{
int rc = VMM_OK;
struct fdt_fileinfo fdt;
struct fdt_node_header *fdt_root;
struct fdt_node_header *fdt_node;
u32 tmp, address_cells, size_cells;
physical_addr_t data[2];
address_cells = sizeof(physical_addr_t) / sizeof(fdt_cell_t);
size_cells = sizeof(physical_size_t) / sizeof(fdt_cell_t);
rc = libfdt_parse_fileinfo((virtual_addr_t)&dt_blob_start, &fdt);
if (rc) {
return rc;
}
fdt_root = libfdt_find_node(&fdt,
VMM_DEVTREE_PATH_SEPARATOR_STRING);
if (!fdt_root) {
return VMM_EFAIL;
}
rc = libfdt_get_property(&fdt, fdt_root, address_cells, size_cells,
VMM_DEVTREE_ADDR_CELLS_ATTR_NAME,
&tmp, sizeof(tmp));
if (!rc) {
address_cells = tmp;
}
rc = libfdt_get_property(&fdt, fdt_root, address_cells, size_cells,
VMM_DEVTREE_SIZE_CELLS_ATTR_NAME,
&tmp, sizeof(tmp));
if (!rc) {
size_cells = tmp;
}
fdt_node = libfdt_find_node(&fdt,
VMM_DEVTREE_PATH_SEPARATOR_STRING
VMM_DEVTREE_MEMORY_NODE_NAME);
if (!fdt_node) {
return VMM_EFAIL;
}
rc = libfdt_get_property(&fdt, fdt_node, address_cells, size_cells,
VMM_DEVTREE_ADDR_CELLS_ATTR_NAME,
&tmp, sizeof(tmp));
if (!rc) {
address_cells = tmp;
}
rc = libfdt_get_property(&fdt, fdt_node, address_cells, size_cells,
VMM_DEVTREE_SIZE_CELLS_ATTR_NAME,
&tmp, sizeof(tmp));
if (!rc) {
size_cells = tmp;
}
rc = libfdt_get_property(&fdt, fdt_node, address_cells, size_cells,
VMM_DEVTREE_REG_ATTR_NAME,
data, sizeof(data));
if (rc) {
return rc;
}
*addr = data[0];
return VMM_OK;
}