--- /dev/null
+/*
+ * GRUB -- GRand Unified Bootloader
+ * Copyright (C) 2013-2015 Free Software Foundation, Inc.
+ *
+ * GRUB 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 3 of the License, or
+ * (at your option) any later version.
+ *
+ * GRUB 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 GRUB. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <grub/fdt.h>
+#include <grub/mm.h>
+#include <grub/cpu/fdtload.h>
+#include <grub/err.h>
+#include <grub/dl.h>
+#include <grub/command.h>
+#include <grub/file.h>
+#include <grub/efi/efi.h>
+
+static void *loaded_fdt;
+static void *fdt;
+
+static void *
+get_firmware_fdt (void)
+{
+ grub_efi_configuration_table_t *tables;
+ grub_efi_guid_t fdt_guid = GRUB_EFI_DEVICE_TREE_GUID;
+ void *firmware_fdt = NULL;
+ unsigned int i;
+
+ /* Look for FDT in UEFI config tables. */
+ tables = grub_efi_system_table->configuration_table;
+
+ for (i = 0; i < grub_efi_system_table->num_table_entries; i++)
+ if (grub_memcmp (&tables[i].vendor_guid, &fdt_guid, sizeof (fdt_guid)) == 0)
+ {
+ firmware_fdt = tables[i].vendor_table;
+ grub_dprintf ("linux", "found registered FDT @ %p\n", firmware_fdt);
+ break;
+ }
+
+ return firmware_fdt;
+}
+
+void *
+grub_fdt_load (grub_size_t additional_size)
+{
+ void *raw_fdt;
+ grub_size_t size;
+
+ if (fdt)
+ {
+ size = GRUB_EFI_BYTES_TO_PAGES (grub_fdt_get_totalsize (fdt));
+ grub_efi_free_pages ((grub_efi_physical_address_t) fdt, size);
+ }
+
+ if (loaded_fdt)
+ raw_fdt = loaded_fdt;
+ else
+ raw_fdt = get_firmware_fdt();
+
+ size =
+ raw_fdt ? grub_fdt_get_totalsize (raw_fdt) : GRUB_FDT_EMPTY_TREE_SZ;
+ size += additional_size;
+
+ grub_dprintf ("linux", "allocating %ld bytes for fdt\n", size);
+ fdt = grub_efi_allocate_pages (0, GRUB_EFI_BYTES_TO_PAGES (size));
+ if (!fdt)
+ return NULL;
+
+ if (raw_fdt)
+ {
+ grub_memmove (fdt, raw_fdt, size);
+ grub_fdt_set_totalsize (fdt, size);
+ }
+ else
+ {
+ grub_fdt_create_empty_tree (fdt, size);
+ }
+ return fdt;
+}
+
+grub_err_t
+grub_fdt_install (void)
+{
+ grub_efi_boot_services_t *b;
+ grub_efi_guid_t fdt_guid = GRUB_EFI_DEVICE_TREE_GUID;
+ grub_efi_status_t status;
+
+ b = grub_efi_system_table->boot_services;
+ status = b->install_configuration_table (&fdt_guid, fdt);
+ if (status != GRUB_EFI_SUCCESS)
+ return grub_error (GRUB_ERR_IO, "failed to install FDT");
+
+ grub_dprintf ("fdt", "Installed/updated FDT configuration table @ %p\n",
+ fdt);
+ return GRUB_ERR_NONE;
+}
+
+void
+grub_fdt_unload (void) {
+ if (!fdt) {
+ return;
+ }
+ grub_efi_free_pages ((grub_efi_physical_address_t) fdt,
+ GRUB_EFI_BYTES_TO_PAGES (grub_fdt_get_totalsize (fdt)));
+ fdt = NULL;
+}
+
+static grub_err_t
+grub_cmd_devicetree (grub_command_t cmd __attribute__ ((unused)),
+ int argc, char *argv[])
+{
+ grub_file_t dtb;
+ void *blob = NULL;
+ int size;
+
+ if (loaded_fdt)
+ grub_free (loaded_fdt);
+ loaded_fdt = NULL;
+
+ /* No arguments means "use firmware FDT". */
+ if (argc == 0)
+ {
+ return GRUB_ERR_NONE;
+ }
+
+ dtb = grub_file_open (argv[0]);
+ if (!dtb)
+ goto out;
+
+ size = grub_file_size (dtb);
+ blob = grub_malloc (size);
+ if (!blob)
+ goto out;
+
+ if (grub_file_read (dtb, blob, size) < size)
+ {
+ if (!grub_errno)
+ grub_error (GRUB_ERR_BAD_OS, N_("premature end of file %s"), argv[0]);
+ goto out;
+ }
+
+ if (grub_fdt_check_header (blob, size) != 0)
+ {
+ grub_error (GRUB_ERR_BAD_OS, N_("invalid device tree"));
+ goto out;
+ }
+
+out:
+ if (dtb)
+ grub_file_close (dtb);
+
+ if (blob)
+ {
+ if (grub_errno == GRUB_ERR_NONE)
+ loaded_fdt = blob;
+ else
+ grub_free (blob);
+ }
+
+ return grub_errno;
+}
+
+static grub_command_t cmd_devicetree;
+
+GRUB_MOD_INIT (fdt)
+{
+ cmd_devicetree =
+ grub_register_command ("devicetree", grub_cmd_devicetree, 0,
+ N_("Load DTB file."));
+}
+
+GRUB_MOD_FINI (fdt)
+{
+ grub_unregister_command (cmd_devicetree);
+}
#include <grub/mm.h>
#include <grub/types.h>
#include <grub/cpu/linux.h>
+#include <grub/cpu/fdtload.h>
#include <grub/efi/efi.h>
#include <grub/efi/pe32.h>
#include <grub/i18n.h>
static grub_addr_t initrd_start;
static grub_addr_t initrd_end;
-static void *loaded_fdt;
-static void *fdt;
-
-static void *
-get_firmware_fdt (void)
-{
- grub_efi_configuration_table_t *tables;
- grub_efi_guid_t fdt_guid = GRUB_EFI_DEVICE_TREE_GUID;
- void *firmware_fdt = NULL;
- unsigned int i;
-
- /* Look for FDT in UEFI config tables. */
- tables = grub_efi_system_table->configuration_table;
-
- for (i = 0; i < grub_efi_system_table->num_table_entries; i++)
- if (grub_memcmp (&tables[i].vendor_guid, &fdt_guid, sizeof (fdt_guid)) == 0)
- {
- firmware_fdt = tables[i].vendor_table;
- grub_dprintf ("linux", "found registered FDT @ %p\n", firmware_fdt);
- break;
- }
-
- return firmware_fdt;
-}
-
-void *
-grub_linux_get_fdt (void)
-{
- void *raw_fdt;
- grub_size_t size;
-
- if (fdt)
- {
- size = BYTES_TO_PAGES (grub_fdt_get_totalsize (fdt));
- grub_efi_free_pages ((grub_efi_physical_address_t) fdt, size);
- }
-
- if (loaded_fdt)
- raw_fdt = loaded_fdt;
- else
- raw_fdt = get_firmware_fdt();
-
- size =
- raw_fdt ? grub_fdt_get_totalsize (raw_fdt) : GRUB_FDT_EMPTY_TREE_SZ;
- size += 0x400;
-
- grub_dprintf ("linux", "allocating %ld bytes for fdt\n", size);
- fdt = grub_efi_allocate_pages (0, BYTES_TO_PAGES (size));
- if (!fdt)
- return NULL;
-
- if (raw_fdt)
- {
- grub_memmove (fdt, raw_fdt, size);
- grub_fdt_set_totalsize (fdt, size);
- }
- else
- {
- grub_fdt_create_empty_tree (fdt, size);
- }
- return fdt;
-}
-
grub_err_t
grub_arm64_uefi_check_image (struct grub_arm64_linux_kernel_header * lh)
{
static grub_err_t
finalize_params_linux (void)
{
- grub_efi_boot_services_t *b;
- grub_efi_guid_t fdt_guid = GRUB_EFI_DEVICE_TREE_GUID;
- grub_efi_status_t status;
int node, retval;
- if (!grub_linux_get_fdt ())
+ void *fdt;
+
+ fdt = grub_fdt_load (0x400);
+
+ if (!fdt)
goto failure;
node = grub_fdt_find_subnode (fdt, 0, "chosen");
goto failure;
}
- b = grub_efi_system_table->boot_services;
- status = b->install_configuration_table (&fdt_guid, fdt);
- if (status != GRUB_EFI_SUCCESS)
+ if (grub_fdt_install() != GRUB_ERR_NONE)
goto failure;
- grub_dprintf ("linux", "Installed/updated FDT configuration table @ %p\n",
- fdt);
-
return GRUB_ERR_NONE;
failure:
- grub_efi_free_pages ((grub_efi_physical_address_t) fdt,
- BYTES_TO_PAGES (grub_fdt_get_totalsize (fdt)));
- fdt = NULL;
+ grub_fdt_unload();
return grub_error(GRUB_ERR_BAD_OS, "failed to install/update FDT");
}
-static grub_err_t
-grub_cmd_devicetree (grub_command_t cmd __attribute__ ((unused)),
- int argc, char *argv[])
-{
- grub_file_t dtb;
- void *blob = NULL;
- int size;
-
- if (!loaded)
- {
- grub_error (GRUB_ERR_BAD_ARGUMENT,
- N_("you need to load the kernel first"));
- return GRUB_ERR_BAD_OS;
- }
-
- if (argc != 1)
- return grub_error (GRUB_ERR_BAD_ARGUMENT, N_("filename expected"));
-
- if (loaded_fdt)
- grub_free (loaded_fdt);
- loaded_fdt = NULL;
-
- dtb = grub_file_open (argv[0]);
- if (!dtb)
- goto out;
-
- size = grub_file_size (dtb);
- blob = grub_malloc (size);
- if (!blob)
- goto out;
-
- if (grub_file_read (dtb, blob, size) < size)
- {
- if (!grub_errno)
- grub_error (GRUB_ERR_BAD_OS, N_("premature end of file %s"), argv[0]);
- goto out;
- }
-
- if (grub_fdt_check_header (blob, size) != 0)
- {
- grub_error (GRUB_ERR_BAD_OS, N_("invalid device tree"));
- goto out;
- }
-
-out:
- if (dtb)
- grub_file_close (dtb);
-
- if (blob)
- {
- if (grub_errno == GRUB_ERR_NONE)
- loaded_fdt = blob;
- else
- grub_free (blob);
- }
-
- return grub_errno;
-}
-
grub_err_t
grub_arm64_uefi_boot_image (grub_addr_t addr, grub_size_t size, char *args)
{
(grub_strlen (args) + 1) * sizeof (grub_efi_char16_t);
loaded_image->load_options =
grub_efi_allocate_pages (0,
- BYTES_TO_PAGES (loaded_image->load_options_size));
+ GRUB_EFI_BYTES_TO_PAGES (loaded_image->load_options_size));
if (!loaded_image->load_options)
return grub_errno;
/* When successful, not reached */
b->unload_image (image_handle);
grub_efi_free_pages ((grub_efi_physical_address_t) loaded_image->load_options,
- BYTES_TO_PAGES (loaded_image->load_options_size));
+ GRUB_EFI_BYTES_TO_PAGES (loaded_image->load_options_size));
return grub_errno;
}
loaded = 0;
if (initrd_start)
grub_efi_free_pages ((grub_efi_physical_address_t) initrd_start,
- BYTES_TO_PAGES (initrd_end - initrd_start));
+ GRUB_EFI_BYTES_TO_PAGES (initrd_end - initrd_start));
initrd_start = initrd_end = 0;
grub_free (linux_args);
if (kernel_addr)
grub_efi_free_pages ((grub_efi_physical_address_t) kernel_addr,
- BYTES_TO_PAGES (kernel_size));
- if (fdt)
- grub_efi_free_pages ((grub_efi_physical_address_t) fdt,
- BYTES_TO_PAGES (grub_fdt_get_totalsize (fdt)));
-
+ GRUB_EFI_BYTES_TO_PAGES (kernel_size));
+ grub_fdt_unload ();
return GRUB_ERR_NONE;
}
initrd_size = grub_get_initrd_size (&initrd_ctx);
grub_dprintf ("linux", "Loading initrd\n");
- initrd_pages = (BYTES_TO_PAGES (initrd_size));
+ initrd_pages = (GRUB_EFI_BYTES_TO_PAGES (initrd_size));
initrd_mem = grub_efi_allocate_pages (0, initrd_pages);
if (!initrd_mem)
{
grub_loader_unset();
grub_dprintf ("linux", "kernel file size: %lld\n", (long long) kernel_size);
- kernel_addr = grub_efi_allocate_pages (0, BYTES_TO_PAGES (kernel_size));
+ kernel_addr = grub_efi_allocate_pages (0, GRUB_EFI_BYTES_TO_PAGES (kernel_size));
grub_dprintf ("linux", "kernel numpages: %lld\n",
- (long long) BYTES_TO_PAGES (kernel_size));
+ (long long) GRUB_EFI_BYTES_TO_PAGES (kernel_size));
if (!kernel_addr)
{
grub_error (GRUB_ERR_OUT_OF_MEMORY, N_("out of memory"));
if (kernel_addr && !loaded)
grub_efi_free_pages ((grub_efi_physical_address_t) kernel_addr,
- BYTES_TO_PAGES (kernel_size));
+ GRUB_EFI_BYTES_TO_PAGES (kernel_size));
return grub_errno;
}
-static grub_command_t cmd_linux, cmd_initrd, cmd_devicetree;
+static grub_command_t cmd_linux, cmd_initrd;
GRUB_MOD_INIT (linux)
{
N_("Load Linux."));
cmd_initrd = grub_register_command ("initrd", grub_cmd_initrd, 0,
N_("Load initrd."));
- cmd_devicetree =
- grub_register_command ("devicetree", grub_cmd_devicetree, 0,
- N_("Load DTB file."));
my_mod = mod;
}
{
grub_unregister_command (cmd_linux);
grub_unregister_command (cmd_initrd);
- grub_unregister_command (cmd_devicetree);
}
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