Add qemu 2.4.0

[kvmfornfv.git] / qemu / roms / u-boot / common / cmd_zfs.c

diff --git a/qemu/roms/u-boot/common/cmd_zfs.c b/qemu/roms/u-boot/common/cmd_zfs.c
new file mode 100644 (file)
index 0000000..0aed29e
--- /dev/null
+++ b/qemu/roms/u-boot/common/cmd_zfs.c
@@ -0,0 +1,171 @@
+/*
+ *
+ * ZFS filesystem porting to Uboot by
+ * Jorgen Lundman <lundman at lundman.net>
+ *
+ * zfsfs support
+ * made from existing GRUB Sources by Sun, GNU and others.
+ *
+ * SPDX-License-Identifier:    GPL-2.0+
+ */
+
+#include <common.h>
+#include <part.h>
+#include <config.h>
+#include <command.h>
+#include <image.h>
+#include <linux/ctype.h>
+#include <asm/byteorder.h>
+#include <zfs_common.h>
+#include <linux/stat.h>
+#include <malloc.h>
+
+#if defined(CONFIG_CMD_USB) && defined(CONFIG_USB_STORAGE)
+#include <usb.h>
+#endif
+
+#if !defined(CONFIG_DOS_PARTITION) && !defined(CONFIG_EFI_PARTITION)
+#error DOS or EFI partition support must be selected
+#endif
+
+#define DOS_PART_MAGIC_OFFSET  0x1fe
+#define DOS_FS_TYPE_OFFSET     0x36
+#define DOS_FS32_TYPE_OFFSET   0x52
+
+static int do_zfs_load(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+       char *filename = NULL;
+       int dev;
+       int part;
+       ulong addr = 0;
+       disk_partition_t info;
+       block_dev_desc_t *dev_desc;
+       char buf[12];
+       unsigned long count;
+       const char *addr_str;
+       struct zfs_file zfile;
+       struct device_s vdev;
+
+       if (argc < 3)
+               return CMD_RET_USAGE;
+
+       count = 0;
+       addr = simple_strtoul(argv[3], NULL, 16);
+       filename = getenv("bootfile");
+       switch (argc) {
+       case 3:
+               addr_str = getenv("loadaddr");
+               if (addr_str != NULL)
+                       addr = simple_strtoul(addr_str, NULL, 16);
+               else
+                       addr = CONFIG_SYS_LOAD_ADDR;
+
+               break;
+       case 4:
+               break;
+       case 5:
+               filename = argv[4];
+               break;
+       case 6:
+               filename = argv[4];
+               count = simple_strtoul(argv[5], NULL, 16);
+               break;
+
+       default:
+               return cmd_usage(cmdtp);
+       }
+
+       if (!filename) {
+               puts("** No boot file defined **\n");
+               return 1;
+       }
+
+       part = get_device_and_partition(argv[1], argv[2], &dev_desc, &info, 1);
+       if (part < 0)
+               return 1;
+
+       dev = dev_desc->dev;
+       printf("Loading file \"%s\" from %s device %d%c%c\n",
+               filename, argv[1], dev,
+               part ? ':' : ' ', part ? part + '0' : ' ');
+
+       zfs_set_blk_dev(dev_desc, &info);
+       vdev.part_length = info.size;
+
+       memset(&zfile, 0, sizeof(zfile));
+       zfile.device = &vdev;
+       if (zfs_open(&zfile, filename)) {
+               printf("** File not found %s **\n", filename);
+               return 1;
+       }
+
+       if ((count < zfile.size) && (count != 0))
+               zfile.size = (uint64_t)count;
+
+       if (zfs_read(&zfile, (char *)addr, zfile.size) != zfile.size) {
+               printf("** Unable to read \"%s\" from %s %d:%d **\n",
+                          filename, argv[1], dev, part);
+               zfs_close(&zfile);
+               return 1;
+       }
+
+       zfs_close(&zfile);
+
+       /* Loading ok, update default load address */
+       load_addr = addr;
+
+       printf("%llu bytes read\n", zfile.size);
+       setenv_hex("filesize", zfile.size);
+
+       return 0;
+}
+
+
+int zfs_print(const char *entry, const struct zfs_dirhook_info *data)
+{
+       printf("%s %s\n",
+                  data->dir ? "<DIR> " : "              ",
+                  entry);
+       return 0; /* 0 continue, 1 stop */
+}
+
+
+
+static int do_zfs_ls(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+       const char *filename = "/";
+       int part;
+       block_dev_desc_t *dev_desc;
+       disk_partition_t info;
+       struct device_s vdev;
+
+       if (argc < 2)
+               return cmd_usage(cmdtp);
+
+       if (argc == 4)
+               filename = argv[3];
+
+       part = get_device_and_partition(argv[1], argv[2], &dev_desc, &info, 1);
+       if (part < 0)
+               return 1;
+
+       zfs_set_blk_dev(dev_desc, &info);
+       vdev.part_length = info.size;
+
+       zfs_ls(&vdev, filename,
+                  zfs_print);
+
+       return 0;
+}
+
+
+U_BOOT_CMD(zfsls, 4, 1, do_zfs_ls,
+                  "list files in a directory (default /)",
+                  "<interface> <dev[:part]> [directory]\n"
+                  "      - list files from 'dev' on 'interface' in a '/DATASET/@/$dir/'");
+
+U_BOOT_CMD(zfsload, 6, 0, do_zfs_load,
+                  "load binary file from a ZFS filesystem",
+                  "<interface> <dev[:part]> [addr] [filename] [bytes]\n"
+                  "      - load binary file '/DATASET/@/$dir/$file' from 'dev' on 'interface'\n"
+                  "             to address 'addr' from ZFS filesystem");