Linaro-uefi October 2014

linaro-uefi@lists.linaro.org

7 participants
24 discussions

[PATCH v4 4/4] arm64: Add multiboot support

by Fu Wei

arm64: Add multiboot support file grub-core/loader/arm64/multiboot.c include/grub/arm64/multiboot.h Add commands register code and hearder file into grub-core/loader/arm64/linux.c - This multiboot support is built into linux module for aarch64. - The implementation for Xen is following <Multiboot on ARM Specification>: http://wiki.xen.org/wiki/Xen_ARM_with_Virtualization_Extensions/Multiboot and xen/docs/misc/arm/device-tree/booting.txt in Xen source code. - This adds support for the Xen Multiboot on ARM specification for arm64, enabling config file portability across the architectures. - The multiboot command is currently x86-only, so reusing these command names should not conflict with any future additions of ARM support to multiboot2. - The reason of adding this functionality to the existing "linux" module rather than "multiboot(2)" (1)multiboot is x86 only (2)Multiboot is added to "linux" module because it reuses existing code. Signed-off-by: Fu Wei <fu.wei(a)linaro.org> --- grub-core/Makefile.core.def | 1 + grub-core/loader/arm64/linux.c | 6 + grub-core/loader/arm64/multiboot.c | 593 +++++++++++++++++++++++++++++++++++++ include/grub/arm64/multiboot.h | 115 +++++++ 4 files changed, 715 insertions(+) diff --git a/grub-core/Makefile.core.def b/grub-core/Makefile.core.def index 42443bc..b963a62 100644 --- a/grub-core/Makefile.core.def +++ b/grub-core/Makefile.core.def @@ -1673,6 +1673,7 @@ module = { ia64_efi = loader/ia64/efi/linux.c; arm = loader/arm/linux.c; arm64 = loader/arm64/linux.c; + arm64 = loader/arm64/multiboot.c; fdt = lib/fdt.c; common = loader/linux.c; common = lib/cmdline.c; diff --git a/grub-core/loader/arm64/linux.c b/grub-core/loader/arm64/linux.c index e9e9a29..4416535 100644 --- a/grub-core/loader/arm64/linux.c +++ b/grub-core/loader/arm64/linux.c @@ -26,6 +26,7 @@ #include <grub/mm.h> #include <grub/types.h> #include <grub/cpu/linux.h> +#include <grub/cpu/multiboot.h> #include <grub/efi/efi.h> #include <grub/efi/pe32.h> #include <grub/i18n.h> @@ -470,6 +471,9 @@ GRUB_MOD_INIT (linux) cmd_devicetree = grub_register_command ("devicetree", grub_cmd_devicetree, 0, N_("Load DTB file.")); + + grub_arm64_linux_register_multiboot_command (mod); + my_mod = mod; } @@ -478,4 +482,6 @@ GRUB_MOD_FINI (linux) grub_unregister_command (cmd_linux); grub_unregister_command (cmd_initrd); grub_unregister_command (cmd_devicetree); + + grub_arm64_linux_unregister_multiboot_command (); } diff --git a/grub-core/loader/arm64/multiboot.c b/grub-core/loader/arm64/multiboot.c new file mode 100644 index 0000000..1aadf16 --- /dev/null +++ b/grub-core/loader/arm64/multiboot.c @@ -0,0 +1,593 @@ +/* + * GRUB -- GRand Unified Bootloader + * Copyright (C) 2014 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/cache.h> +#include <grub/charset.h> +#include <grub/command.h> +#include <grub/err.h> +#include <grub/file.h> +#include <grub/fdt.h> +#include <grub/linux.h> +#include <grub/list.h> +#include <grub/loader.h> +#include <grub/misc.h> +#include <grub/mm.h> +#include <grub/types.h> +#include <grub/cpu/linux.h> +#include <grub/cpu/multiboot.h> +#include <grub/efi/efi.h> +#include <grub/efi/pe32.h> +#include <grub/i18n.h> +#include <grub/lib/cmdline.h> + +static grub_dl_t linux_mod; +static int loaded; + +static struct multiboot_binary *multiboot_kernel = NULL; +static struct multiboot_binary *module_head = NULL; +static const grub_size_t module_default_align[] = { + MODULE_IMAGE_MIN_ALIGN, + MODULE_INITRD_MIN_ALIGN, + MODULE_OTHER_MIN_ALIGN, + MODULE_CUSTOM_MIN_ALIGN +}; + +static void *multiboot_fdt = NULL; +static const compat_string_struct_t default_compat_string[] = { + FDT_COMPATIBLE (MODULE_IMAGE_COMPATIBLE), + FDT_COMPATIBLE (MODULE_INITRD_COMPATIBLE), + FDT_COMPATIBLE (MODULE_OTHER_COMPATIBLE) +}; + +static grub_err_t +set_module_type (struct multiboot_binary *module, + int argc, char *argv[], int *file_name_index) +{ + static module_type_t default_type = MODULE_IMAGE; + char *temp = NULL; + grub_size_t total_size = 0; + int num_types = 0, i; + char **compat_string_temp_array = + (char **) grub_zalloc (sizeof (char *) * argc); + + *file_name_index = 0; + + /* if there are some options we need to process. */ + if (argc >= 3) + { + while (argc > 1) + { + if (grub_strcmp (argv[0], "--type") == 0) + { + module->node_info.type = MODULE_CUSTOM; + ARG_SHIFT(argc, argv); + total_size += grub_strlen (argv[0]) + 1; + compat_string_temp_array[num_types++] = argv[0]; + ARG_SHIFT(argc, argv); + (*file_name_index) += 2; + } + else + /* we can add more options process code here. */ + break; + } + } + + /* For the default module type : + * The implementation is following <Multiboot on ARM Specification>: + * Each module will be given a default compatibility property + * based on the order in which the modules are added. + * The 1st module: compatible = "multiboot,kernel", "multiboot,module" + * The 2nd module: compatible = "multiboot,ramdisk", "multiboot,module" + * All subsequent modules: compatible = "multiboot,module" + * But this order will NOT be interfered with "--type"(MODULE_CUSTOM) + * For more detail, please refer to: + * http://wiki.xen.org/wiki/Xen_ARM_with_Virtualization_Extensions/Multiboot + */ + if (module->node_info.type != MODULE_CUSTOM) + { + /* the module type is set by the load order */ + module->node_info.type = default_type; + switch (default_type) + { + case MODULE_IMAGE: + default_type = MODULE_INITRD; + break; + + case MODULE_INITRD: + default_type = MODULE_OTHER; + break; + + case MODULE_OTHER: + break; + + default: + default_type = MODULE_IMAGE; /* error, reset the type */ + return (grub_error (GRUB_ERR_BAD_ARGUMENT, N_("invalid argument"))); + } + } + else + { + /* the module type is set by "--type"(MODULE_CUSTOM) */ + module->node_info.compat_string = temp = + (char *) grub_zalloc (total_size); + module->node_info.compat_string_size = total_size; + for (i = 0; num_types > 0; num_types--, i++, temp++) + { + grub_strcpy (temp, compat_string_temp_array[i]); + temp += grub_strlen (compat_string_temp_array[i]); + } + } + + grub_free (compat_string_temp_array); + return (GRUB_ERR_NONE); +} + +static grub_err_t +prepare_kernel_params (void) +{ + int retval; + int chosen_node = 0; + + multiboot_fdt = grub_linux_get_fdt (); + if (!multiboot_fdt) + return (grub_error (GRUB_ERR_BAD_OS, "failed to get FDT")); + + chosen_node = grub_fdt_find_subnode (multiboot_fdt, 0, "chosen"); + if (chosen_node < 0) + chosen_node = grub_fdt_add_subnode (multiboot_fdt, 0, "chosen"); + if (chosen_node < 1) + return (grub_error (GRUB_ERR_BAD_OS, "failed to get chosen node")); + + grub_dprintf ("multiboot_loader", + "Multiboot Kernel cmdline : %s @ %p size:%d\n", + multiboot_kernel->cmdline, multiboot_kernel->cmdline, + multiboot_kernel->cmdline_size); + + retval = grub_fdt_set_prop (multiboot_fdt, chosen_node, "bootargs", + multiboot_kernel->cmdline, + multiboot_kernel->cmdline_size); + if (retval) + return grub_error (GRUB_ERR_BAD_OS, "failed to install/update FDT"); + + return (GRUB_ERR_NONE); +} + +static grub_err_t +prepare_module_params (struct multiboot_binary *module) +{ + int retval, chosen_node = 0, module_node = 0; + char module_name[FDT_NODE_NAME_MAX_SIZE]; + + retval = grub_snprintf (module_name, FDT_NODE_NAME_MAX_SIZE, + "module@%lx", + multiboot_address_align (module->start, + module->align)); + grub_dprintf ("multiboot_loader", "Module node name %s \n", module_name); + + if (retval < (int) sizeof ("module@")) + return (grub_error (GRUB_ERR_BAD_OS, + N_("failed to set node name for module"))); + + chosen_node = grub_fdt_find_subnode (multiboot_fdt, 0, "chosen"); + if (chosen_node < 0) + chosen_node = grub_fdt_add_subnode (multiboot_fdt, 0, "chosen"); + if (chosen_node < 1) + return (grub_error (GRUB_ERR_BAD_OS, "failed to get chosen node")); + + module_node = + grub_fdt_find_subnode (multiboot_fdt, chosen_node, module_name); + if (module_node < 0) + module_node = + grub_fdt_add_subnode (multiboot_fdt, chosen_node, module_name); + + retval = grub_fdt_set_prop (multiboot_fdt, module_node, "compatible", + module->node_info.compat_string, + (grub_uint32_t) module->node_info.compat_string_size); + if (retval) + return (grub_error (GRUB_ERR_BAD_OS, + N_("failed to get module node in chosen node"))); + + grub_dprintf ("multiboot_loader", + "Module %s compatible = %s size = 0x%lx\n", module->name, + module->node_info.compat_string, + module->node_info.compat_string_size); + + retval = grub_fdt_set_reg64 (multiboot_fdt, module_node, + multiboot_address_align (module->start, + module->align), + module->size); + if (retval) + return (grub_error (GRUB_ERR_BAD_OS, + N_("failed to set reg info in module node"))); + + if ((module->cmdline) && (module->cmdline_size > 0)) + { + grub_dprintf ("multiboot_loader", + "Module %s cmdline : %s @ %p size:%d\n", module->name, + module->cmdline, module->cmdline, module->cmdline_size); + + retval = grub_fdt_set_prop (multiboot_fdt, module_node, + "bootargs", module->cmdline, + module->cmdline_size + 1); + if (retval) + return (grub_error (GRUB_ERR_BAD_OS, + "failed to set module cmdline info to chosen node")); + } + else + { + grub_dprintf ("multiboot_loader", "Module %s has not bootargs!\n", + module->name); + } + + return (GRUB_ERR_NONE); +} + +static grub_err_t +install_all_params (void) +{ + grub_efi_boot_services_t *b; + grub_efi_status_t status; + grub_efi_guid_t fdt_guid = GRUB_EFI_DEVICE_TREE_GUID; + + b = grub_efi_system_table->boot_services; + status = b->install_configuration_table (&fdt_guid, multiboot_fdt); + if (status != GRUB_EFI_SUCCESS) + return grub_error (GRUB_ERR_BAD_OS, "failed to install/update FDT"); + + grub_dprintf ("multiboot_loader", + "Installed/updated FDT configuration table @ %p\n", + multiboot_fdt); + return (GRUB_ERR_NONE); +} + +static grub_err_t +clean_all_params (void) +{ + if (multiboot_fdt) + { + grub_efi_free_pages ((grub_efi_physical_address_t) multiboot_fdt, + BYTES_TO_PAGES (grub_fdt_get_totalsize + (multiboot_fdt))); + multiboot_fdt = NULL; + } + return (GRUB_ERR_NONE); +} + +static grub_err_t +finalize_params_multiboot (void) +{ + struct multiboot_binary *module; + + if (multiboot_kernel) + { + if (prepare_kernel_params () != GRUB_ERR_NONE) + goto fail; + } + else + { + grub_dprintf ("multiboot_loader", + "Failed to get Multiboot Kernel info!\n"); + goto fail; + } + + /* Set module params info */ + FOR_LIST_ELEMENTS (module, module_head) + { + if (module->start && module->size > 0) + { + grub_dprintf ("multiboot_loader", "Module %s @ 0x%lx size:0x%lx\n", + module->name, + multiboot_address_align (module->start, module->align), + module->size); + if (prepare_module_params (module) != GRUB_ERR_NONE) + goto fail; + } + else + { + grub_dprintf ("multiboot_loader", "Module info error: %s!\n", + module->name); + goto fail; + } + } + + if (install_all_params () == GRUB_ERR_NONE) + return (GRUB_ERR_NONE); + +fail: + clean_all_params (); + return (grub_error (GRUB_ERR_BAD_OS, "failed to install/update FDT")); +} + + +static grub_err_t +multiboot_boot (void) +{ + if (finalize_params_multiboot () != GRUB_ERR_NONE) + return (grub_errno); + + return (grub_arm64_uefi_boot_image + (multiboot_kernel->start, multiboot_kernel->size, + multiboot_kernel->cmdline)); +} + +static void +single_binary_unload (struct multiboot_binary *binary) +{ + if (binary && binary->start && binary->size > 0) + { + grub_efi_free_pages ((grub_efi_physical_address_t) binary->start, + BYTES_TO_PAGES (binary->size + binary->align)); + } + if (binary && binary->cmdline && binary->cmdline_size > 0) + { + grub_free (binary->cmdline); + grub_dprintf ("multiboot_loader", + "Module %s cmdline memory free @ %p size: %d\n", + binary->name, binary->cmdline, binary->cmdline_size); + } + if (binary) + { + if (binary->node_info.type == MODULE_CUSTOM) + grub_free ((void *) binary->node_info.compat_string); + if (grub_strcmp (binary->name, MULTIBOOT_KERNEL_NAME) != 0) + grub_list_remove (GRUB_AS_LIST (binary)); + grub_dprintf ("multiboot_loader", + "Module %s struct memory free @ %p size: 0x%lx\n", + binary->name, binary, sizeof (binary)); + grub_free (binary); + } + return; +} + +static void +all_binaries_unload (void) +{ + struct multiboot_binary *binary; + + FOR_LIST_ELEMENTS (binary, module_head) + { + single_binary_unload (binary); + } + + if (multiboot_kernel) + single_binary_unload (multiboot_kernel); + + return; +} + +static grub_err_t +multiboot_unload (void) +{ + loaded = 0; + all_binaries_unload (); + clean_all_params (); + grub_dl_unref (linux_mod); + + return (GRUB_ERR_NONE); +} + +static grub_err_t +multiboot_binary_load (struct multiboot_binary *binary, grub_file_t file, + int argc, char *argv[]) +{ + binary->size = grub_file_size (file); + grub_dprintf ("multiboot_loader", "Multiboot %s file size: 0x%lx\n", + binary->name, binary->size); + + binary->start = (grub_addr_t) grub_efi_allocate_pages (0, + (BYTES_TO_PAGES + (binary->size + + binary->align))); + if (!binary->start) + return (grub_error (GRUB_ERR_OUT_OF_MEMORY, N_("out of memory"))); + + grub_dprintf ("multiboot_loader", "Multiboot %s numpages: 0x%lx\n", + binary->name, BYTES_TO_PAGES (binary->size + binary->align)); + + if (grub_file_read (file, + (void *) multiboot_address_align (binary->start, + binary->align), + binary->size) < (grub_ssize_t) binary->size) + { + single_binary_unload (binary); + return (grub_error (GRUB_ERR_BAD_OS, + N_("premature end of file %s"), argv[0])); + } + + /* Skip the multiboot binary file name */ + ARG_SHIFT(argc, argv); + + if (argc > 0) + { + binary->cmdline_size = grub_loader_cmdline_size (argc, argv); + binary->cmdline = grub_zalloc (binary->cmdline_size); + if (!binary->cmdline) + { + single_binary_unload (binary); + return (grub_error (GRUB_ERR_OUT_OF_MEMORY, N_("out of memory"))); + } + grub_create_loader_cmdline (argc, argv, + binary->cmdline, binary->cmdline_size); + grub_dprintf ("multiboot_loader", + "Multiboot %s cmdline @ %p %s, size: %d\n", binary->name, + binary->cmdline, binary->cmdline, binary->cmdline_size); + } + else + { + binary->cmdline_size = 0; + binary->cmdline = NULL; + } + + return (GRUB_ERR_NONE); +} + +static grub_err_t +grub_cmd_module (grub_command_t cmd __attribute__ ((unused)), + int argc, char *argv[]) +{ + + grub_file_t file = 0; + struct multiboot_binary *module = NULL; + int file_name_index = 0; + + if (argc == 0) + { + grub_error (GRUB_ERR_BAD_ARGUMENT, N_("filename expected")); + goto fail; + } + + if (!loaded) + { + grub_error (GRUB_ERR_BAD_ARGUMENT, + N_("Please use multiboot command first")); + goto fail; + } + + module = + (struct multiboot_binary *) + grub_zalloc (sizeof (struct multiboot_binary)); + if (!module) + return (grub_error (GRUB_ERR_OUT_OF_MEMORY, N_("out of memory"))); + + /* process all the options and get module type */ + if (set_module_type (module, argc, argv, &file_name_index) != GRUB_ERR_NONE) + goto fail; + switch (module->node_info.type) + { + case MODULE_IMAGE: + case MODULE_INITRD: + case MODULE_OTHER: + module->node_info.compat_string = + default_compat_string[module->node_info.type].compat_string; + module->node_info.compat_string_size = + default_compat_string[module->node_info.type].size; + break; + + case MODULE_CUSTOM: + /* we have set the node_info in set_module_type */ + break; + + default: + return (grub_error (GRUB_ERR_BAD_ARGUMENT, N_("invalid argument"))); + } + module->name = module->node_info.compat_string; + module->align = module_default_align[module->node_info.type]; + + grub_dprintf ("multiboot_loader", "Init %s module and node info:\n" + "compatible %s\ncompat_string_size 0x%lx\n", + module->name, + module->node_info.compat_string, + module->node_info.compat_string_size); + + file = grub_file_open (argv[file_name_index]); + if (!file) + goto fail; + + grub_errno = multiboot_binary_load (module, file, + (argc - file_name_index), + (argv + file_name_index)); + + if (grub_errno == GRUB_ERR_NONE) + grub_list_push (GRUB_AS_LIST_P (&module_head), GRUB_AS_LIST (module)); + +fail: + if (file) + grub_file_close (file); + if (grub_errno != GRUB_ERR_NONE) + single_binary_unload (module); + + return (grub_errno); +} + +static grub_err_t +grub_cmd_multiboot (grub_command_t cmd __attribute__ ((unused)), + int argc, char *argv[]) +{ + grub_file_t file = NULL; + struct kernel_header sh; + + grub_dl_ref (linux_mod); + + if (argc == 0) + { + grub_error (GRUB_ERR_BAD_ARGUMENT, N_("filename expected")); + goto fail; + } + + file = grub_file_open (argv[0]); + if (!file) + goto fail; + + if (grub_file_read (file, &sh, sizeof (sh)) < (long) sizeof (sh)) + goto fail; + if (grub_arm64_uefi_check_image + ((struct grub_arm64_linux_kernel_header *) &sh) != GRUB_ERR_NONE) + goto fail; + grub_file_seek (file, 0); + + grub_loader_unset (); + + multiboot_kernel = + (struct multiboot_binary *) + grub_zalloc (sizeof (struct multiboot_binary)); + if (!multiboot_kernel) + return (grub_error (GRUB_ERR_OUT_OF_MEMORY, N_("out of memory"))); + + multiboot_kernel->name = MULTIBOOT_KERNEL_NAME; + multiboot_kernel->align = (grub_size_t) sh.optional_header.section_alignment; + + grub_errno = multiboot_binary_load (multiboot_kernel, file, argc, argv); + if (grub_errno == GRUB_ERR_NONE) + { + grub_loader_set (multiboot_boot, multiboot_unload, 0); + loaded = 1; + } + +fail: + if (file) + grub_file_close (file); + if (grub_errno != GRUB_ERR_NONE) + { + loaded = 0; + all_binaries_unload (); + grub_dl_unref (linux_mod); + } + + return (grub_errno); +} + +static grub_command_t cmd_multiboot, cmd_module; + +void +grub_arm64_linux_register_multiboot_command (grub_dl_t mod) +{ + cmd_multiboot = + grub_register_command ("multiboot", grub_cmd_multiboot, 0, + N_("Load a multiboot kernel.")); + cmd_module = + grub_register_command ("module", grub_cmd_module, 0, + N_("Load a multiboot module.")); + linux_mod = mod; +} + +void +grub_arm64_linux_unregister_multiboot_command (void) +{ + grub_unregister_command (cmd_multiboot); + grub_unregister_command (cmd_module); +} diff --git a/include/grub/arm64/multiboot.h b/include/grub/arm64/multiboot.h new file mode 100644 index 0000000..d69c92a --- /dev/null +++ b/include/grub/arm64/multiboot.h @@ -0,0 +1,115 @@ +/* + * multiboot.h - Multiboot header file for Xen multiboot via FDT + * on AArch64 architecture. + * Copyright (C) 2014 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/>. + */ + +#ifndef MULTIBOOT_HEADER +#define MULTIBOOT_HEADER 1 + +#include <grub/list.h> +#include <grub/types.h> +#include <grub/efi/pe32.h> /* required by struct kernel_header */ + +#define MULTIBOOT_KERNEL_NAME "multiboot_kernel" + +#define MODULE_DEFAULT_ALIGN (0x0) +#define MODULE_IMAGE_MIN_ALIGN MODULE_DEFAULT_ALIGN +#define MODULE_INITRD_MIN_ALIGN MODULE_DEFAULT_ALIGN +#define MODULE_OTHER_MIN_ALIGN MODULE_DEFAULT_ALIGN +#define MODULE_CUSTOM_MIN_ALIGN MODULE_DEFAULT_ALIGN + +#define MODULE_IMAGE_COMPATIBLE "multiboot,kernel\0multiboot,module" +#define MODULE_INITRD_COMPATIBLE "multiboot,ramdisk\0multiboot,module" +#define MODULE_OTHER_COMPATIBLE "multiboot,module" + +/* This maximum size is defined in Power.org ePAPR V1.1 + * https://www.power.org/documentation/epapr-version-1-1/ + * 2.2.1.1 Node Name Requirements + * node-name@unit-address + * 31 + 1(@) + 16(64bit address in hex format) + 1(\0) = 49 + */ +#define FDT_NODE_NAME_MAX_SIZE (49) + +#define ARG_SHIFT(argc, argv) \ + do { \ + (argc)--; \ + (argv)++; \ + } while (0) + +struct compat_string_struct +{ + grub_size_t size; + const char *compat_string; +}; +typedef struct compat_string_struct compat_string_struct_t; +#define FDT_COMPATIBLE(x) {.size = sizeof(x), .compat_string = x} + +enum module_type +{ + MODULE_IMAGE, + MODULE_INITRD, + MODULE_OTHER, + MODULE_CUSTOM +}; +typedef enum module_type module_type_t; + +struct fdt_node_info +{ + module_type_t type; + + const char *compat_string; + grub_size_t compat_string_size; +}; + +struct kernel_header +{ + struct grub_arm64_linux_kernel_header efi_head; + + /* This is always PE\0\0. */ + grub_uint8_t signature[GRUB_PE32_SIGNATURE_SIZE]; + /* The COFF file header. */ + struct grub_pe32_coff_header coff_header; + /* The Optional header. */ + struct grub_pe64_optional_header optional_header; +}; + +struct multiboot_binary +{ + struct multiboot_binary *next; + struct multiboot_binary **prev; + const char *name; + + grub_addr_t start; + grub_size_t size; + grub_size_t align; + + char *cmdline; + int cmdline_size; + + struct fdt_node_info node_info; +}; + +void grub_arm64_linux_register_multiboot_command (grub_dl_t mod); +void grub_arm64_linux_unregister_multiboot_command (void); + +static __inline grub_addr_t +multiboot_address_align (grub_addr_t start, grub_size_t align) +{ + return (align ? (ALIGN_UP (start, align)) : start); +} + +#endif /* ! MULTIBOOT_HEADER */ -- 1.8.3.1

10 years, 1 month

[PATCH v4 3/4] arm64: Remove "loaded" checking in the grub_cmd_devicetree of linux.c

by Fu Wei

arm64: Remove "loaded" checking in the func grub_cmd_devicetree of linux.c Reason: (1)we don't need the check, actually (2)it is a prerequisite for multiboot support Signed-off-by: Fu Wei <fu.wei(a)linaro.org> --- grub-core/loader/arm64/linux.c | 7 ------- 1 file changed, 7 deletions(-) diff --git a/grub-core/loader/arm64/linux.c b/grub-core/loader/arm64/linux.c index 987f5b9..e9e9a29 100644 --- a/grub-core/loader/arm64/linux.c +++ b/grub-core/loader/arm64/linux.c @@ -185,13 +185,6 @@ grub_cmd_devicetree (grub_command_t cmd __attribute__ ((unused)), 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")); -- 1.8.3.1

10 years, 1 month

[PATCH v4 2/4] arm64: Make some shared functions for multiboot.c in linux.c

by Fu Wei

10 years, 1 month

[PATCH v4 1/4]fdt: Add grub_fdt_set_reg64 macro into fdt.h header file

by Fu Wei

fdt: Add grub_fdt_set_reg64 macro into fdt.h header file for inserting "reg" properiy, while #address-cells = <0x2> and #size-cells = <0x2> Signed-off-by: Fu Wei <fu.wei(a)linaro.org> Reviewed-by: Leif Lindholm <leif.lindholm(a)linaro.org> --- include/grub/fdt.h | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/include/grub/fdt.h b/include/grub/fdt.h index 3016998..fdfca75 100644 --- a/include/grub/fdt.h +++ b/include/grub/fdt.h @@ -117,4 +117,16 @@ int grub_fdt_set_prop (void *fdt, unsigned int nodeoffset, const char *name, grub_fdt_set_prop ((fdt), (nodeoffset), (name), &_val, 8); \ }) +/* Setup "reg" property for + * #address-cells = <0x2> + * #size-cells = <0x2> + */ +#define grub_fdt_set_reg64(fdt, nodeoffset, addr, size) \ +({ \ + grub_uint64_t reg_64[2]; \ + reg_64[0] = grub_cpu_to_be64(addr); \ + reg_64[1] = grub_cpu_to_be64(size); \ + grub_fdt_set_prop ((fdt), (nodeoffset), "reg", reg_64, 16); \ +}) + #endif /* ! GRUB_FDT_HEADER */ -- 1.8.3.1

10 years, 1 month

[PATCH v4 0/4]arm64: Add multiboot support (via fdt) for Xen boot

by Fu Wei

arm64:Add multiboot support (via fdt) for Xen boot - This multiboot support is built into linux module for aarch64. - The implementation for Xen is following <Multiboot on ARM Specification>: http://wiki.xen.org/wiki/Xen_ARM_with_Virtualization_Extensions/Multiboot and xen/docs/misc/arm/device-tree/booting.txt in Xen source code. - The example of this support is <How to boot Xen with GRUB on AArch64 the Foundation FVP model> https://wiki.linaro.org/LEG/Engineering/Grub2/Xen_booting_on_Foundation_FVP… - This adds support for the Xen Multiboot on ARM specification for arm64, enabling config file portability across the architectures. - The multiboot command is currently x86-only, so reusing these command names should not conflict with any future additions of ARM support to multiboot2. - The reason of adding this functionality to the existing "linux" module rather than "multiboot(2)" (1)multiboot is x86 only (2)Multiboot is added to "linux" module because it reuses existing code. - Some changes in original linux module code Move some #define from grub-core/loader/arm64/linux.c to include/grub/arm64/linux.h Make some shared functions for multiboot.c Remove "loaded" checking in the grub_cmd_devicetree of linux.c - Add grub_fdt_set_reg64 macro into fdt.h header file for inserting "reg" properiy, while #address-cells = <0x2> and #size-cells = <0x2> This multiboot support will be built in linux module for aarch64, and can not be used alone. grub-core/Makefile.core.def | 1 + grub-core/loader/arm64/linux.c | 72 ++--- grub-core/loader/arm64/multiboot.c | 593 +++++++++++++++++++++++++++++++++++++ include/grub/arm64/linux.h | 11 + include/grub/arm64/multiboot.h | 115 +++++++ include/grub/fdt.h | 12 + 6 files changed, 768 insertions(+), 36 deletions(-) create mode 100644 grub-core/loader/arm64/multiboot.c create mode 100644 include/grub/arm64/multiboot.h Signed-off-by: Fu Wei <fu.wei(a)linaro.org>

10 years, 1 month

[PATCH v3 3/3] arm64: Add multiboot support file

by Fu Wei

arm64: Add multiboot support file grub-core/loader/arm64/multiboot.c include/grub/arm64/multiboot.h Add commands register code and hearder file into grub-core/loader/arm64/linux.c - This multiboot support is built into linux module for aarch64. - The implementation for Xen is following <Multiboot on ARM Specification>: http://wiki.xen.org/wiki/Xen_ARM_with_Virtualization_Extensions/Multiboot and xen/docs/misc/arm/device-tree/booting.txt in Xen source code. - This adds support for the Xen Multiboot on ARM specification for arm64, enabling config file portability across the architectures. - The multiboot command is currently x86-only, so reusing these command names should not conflict with any future additions of ARM support to multiboot2. - The reason of adding this functionality to the existing "linux" module rather than "multiboot(2)" (1)multiboot is x86 only (2)Multiboot is added to "linux" module because it reuses existing code. Signed-off-by: Fu Wei <fu.wei(a)linaro.org> --- grub-core/Makefile.core.def | 1 + grub-core/loader/arm64/linux.c | 6 + grub-core/loader/arm64/multiboot.c | 623 +++++++++++++++++++++++++++++++++++++ include/grub/arm64/multiboot.h | 114 +++++++ 4 files changed, 744 insertions(+) diff --git a/grub-core/Makefile.core.def b/grub-core/Makefile.core.def index 42443bc..b963a62 100644 --- a/grub-core/Makefile.core.def +++ b/grub-core/Makefile.core.def @@ -1673,6 +1673,7 @@ module = { ia64_efi = loader/ia64/efi/linux.c; arm = loader/arm/linux.c; arm64 = loader/arm64/linux.c; + arm64 = loader/arm64/multiboot.c; fdt = lib/fdt.c; common = loader/linux.c; common = lib/cmdline.c; diff --git a/grub-core/loader/arm64/linux.c b/grub-core/loader/arm64/linux.c index b030b05..4f10a04 100644 --- a/grub-core/loader/arm64/linux.c +++ b/grub-core/loader/arm64/linux.c @@ -26,6 +26,7 @@ #include <grub/mm.h> #include <grub/types.h> #include <grub/cpu/linux.h> +#include <grub/cpu/multiboot.h> #include <grub/efi/efi.h> #include <grub/efi/pe32.h> #include <grub/i18n.h> @@ -470,6 +471,9 @@ GRUB_MOD_INIT (linux) cmd_devicetree = grub_register_command ("devicetree", grub_cmd_devicetree, 0, N_("Load DTB file.")); + + grub_arm64_linux_register_multiboot_command (mod); + my_mod = mod; } @@ -478,4 +482,6 @@ GRUB_MOD_FINI (linux) grub_unregister_command (cmd_linux); grub_unregister_command (cmd_initrd); grub_unregister_command (cmd_devicetree); + + grub_arm64_linux_unregister_multiboot_command (); } diff --git a/grub-core/loader/arm64/multiboot.c b/grub-core/loader/arm64/multiboot.c new file mode 100644 index 0000000..5e4f1ae --- /dev/null +++ b/grub-core/loader/arm64/multiboot.c @@ -0,0 +1,623 @@ +/* + * GRUB -- GRand Unified Bootloader + * Copyright (C) 2014 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/cache.h> +#include <grub/charset.h> +#include <grub/command.h> +#include <grub/err.h> +#include <grub/file.h> +#include <grub/fdt.h> +#include <grub/linux.h> +#include <grub/list.h> +#include <grub/loader.h> +#include <grub/misc.h> +#include <grub/mm.h> +#include <grub/types.h> +#include <grub/cpu/linux.h> +#include <grub/cpu/multiboot.h> +#include <grub/efi/efi.h> +#include <grub/efi/pe32.h> +#include <grub/i18n.h> +#include <grub/lib/cmdline.h> + +static grub_dl_t linux_mod; +static int loaded; + +static multiboot_module_t kernel = NULL; +static multiboot_module_t module_head = NULL; +static module_type_t module_type = MODULE_IMAGE; +static const grub_size_t module_default_align[] = { + MODULE_IMAGE_MIN_ALIGN, + MODULE_INITRD_MIN_ALIGN, + MODULE_OTHER_MIN_ALIGN, + MODULE_CUSTOM_MIN_ALIGN +}; + +static void *multiboot_fdt = NULL; +static const compatible_struct_t default_compatible[] = { + FDT_COMPATIBLE (MODULE_IMAGE_COMPATIBLE), + FDT_COMPATIBLE (MODULE_INITRD_COMPATIBLE), + FDT_COMPATIBLE (MODULE_OTHER_COMPATIBLE) +}; + +static grub_err_t +clean_extra_info (multiboot_module_t module) +{ + if (module && module->extra_info) + { + if (((fdt_node_info_t) module->extra_info)->type == MODULE_CUSTOM) + grub_free (((fdt_node_info_t) module->extra_info)->compatible_custom); + + grub_free (module->extra_info); + module->extra_info = NULL; + } + return (GRUB_ERR_NONE); +} + +static grub_err_t +set_module_type (multiboot_module_t module, int *argc, char **argv[]) +{ + fdt_node_info_t node_info = (fdt_node_info_t) module->extra_info; + char *temp = NULL; + grub_size_t temp_size = 0, total_size = 0; + int compatible_counter = 0, i = 0; + char **compatible_temp_array = + (char **) grub_zalloc (sizeof (char *) * (*argc)); + + if ((*argc) >= 3) + { + while ((*argc) > 1) + { + if (grub_strcmp (*argv[0], "--type") == 0) + { + node_info->type = MODULE_CUSTOM; + (*argc)--; + (*argv)++; + temp_size = grub_strlen (*argv[0]) + 1; + temp = (char *) grub_zalloc (temp_size); + grub_strcpy (temp, *argv[0]); + compatible_temp_array[compatible_counter] = temp; + total_size += temp_size; + compatible_counter++; + (*argc)--; + (*argv)++; + } + else + break; + } + } + + if (node_info->type != MODULE_CUSTOM) + { + node_info->type = module_type++; + if (module_type > MODULE_OTHER) + module_type = MODULE_OTHER; + } + else + { + node_info->compatible_custom = temp = (char *) grub_zalloc (total_size); + node_info->compatible_size = total_size; + for (i = 0; compatible_counter > 0; compatible_counter--, i++, temp++) + { + grub_strcpy (temp, compatible_temp_array[i]); + temp += grub_strlen (compatible_temp_array[i]); + grub_free (compatible_temp_array[i]); + } + } + + grub_free (compatible_temp_array); + return (GRUB_ERR_NONE); +} + +static grub_err_t +prepare_kernel_params (multiboot_module_t module) +{ + int retval; + int chosen_node = 0; + + multiboot_fdt = grub_linux_get_fdt (); + if (!multiboot_fdt) + return (grub_error (GRUB_ERR_BAD_OS, "failed to get FDT")); + + chosen_node = grub_fdt_find_subnode (multiboot_fdt, 0, "chosen"); + if (chosen_node < 0) + chosen_node = grub_fdt_add_subnode (multiboot_fdt, 0, "chosen"); + if (chosen_node < 1) + return (grub_error (GRUB_ERR_BAD_OS, "failed to get chosen node")); + + grub_dprintf ("multiboot_loader", + "Multiboot Kernel cmdline : %s @ %p size:%d\n", + module->cmdline, module->cmdline, module->cmdline_size); + + retval = grub_fdt_set_prop (multiboot_fdt, chosen_node, + "bootargs", module->cmdline, + module->cmdline_size); + if (retval) + return (grub_error (GRUB_ERR_BAD_OS, + "failed to set kernel cmdline info to chosen node")); + + return (GRUB_ERR_NONE); +} + +static grub_err_t +prepare_module_params (multiboot_module_t module) +{ + int retval, chosen_node = 0, module_node = 0; + fdt_node_info_t node_info = NULL; + char module_name[FDT_NODE_NAME_MAX_SIZE]; + + if (module && module->extra_info) + { + node_info = (fdt_node_info_t) module->extra_info; + } + else + { + return (grub_error (GRUB_ERR_BAD_ARGUMENT, N_("failed to get module"))); + } + + retval = grub_snprintf (module_name, FDT_NODE_NAME_MAX_SIZE, + "module@%lx", + multiboot_address_align (module->start, + module->align)); + grub_dprintf ("multiboot_loader", "Module node name %s \n", module_name); + + if (retval < (int) sizeof ("module@")) + return (grub_error (GRUB_ERR_BAD_OS, + N_("failed to set node name for module"))); + + chosen_node = grub_fdt_find_subnode (multiboot_fdt, 0, "chosen"); + if (chosen_node < 0) + chosen_node = grub_fdt_add_subnode (multiboot_fdt, 0, "chosen"); + if (chosen_node < 1) + return (grub_error (GRUB_ERR_BAD_OS, "failed to get chosen node")); + + module_node = + grub_fdt_find_subnode (multiboot_fdt, chosen_node, module_name); + if (module_node < 0) + module_node = + grub_fdt_add_subnode (multiboot_fdt, chosen_node, module_name); + + retval = grub_fdt_set_prop (multiboot_fdt, module_node, "compatible", + node_info->compatible, + (grub_uint32_t) node_info->compatible_size); + if (retval) + return (grub_error (GRUB_ERR_BAD_OS, + N_("failed to get module node in chosen node"))); + + grub_dprintf ("multiboot_loader", + "Module %s compatible = %s size = 0x%lx\n", module->name, + node_info->compatible, node_info->compatible_size); + + retval = grub_fdt_set_reg64 (multiboot_fdt, module_node, + multiboot_address_align (module->start, + module->align), + module->size); + if (retval) + return (grub_error (GRUB_ERR_BAD_OS, + N_("failed to set reg info in module node"))); + + if ((module->cmdline) && (module->cmdline_size > 0)) + { + grub_dprintf ("multiboot_loader", + "Module %s cmdline : %s @ %p size:%d\n", module->name, + module->cmdline, module->cmdline, module->cmdline_size); + + retval = grub_fdt_set_prop (multiboot_fdt, module_node, + "bootargs", module->cmdline, + module->cmdline_size + 1); + if (retval) + return (grub_error (GRUB_ERR_BAD_OS, + "failed to set module cmdline info to chosen node")); + } + else + { + grub_dprintf ("multiboot_loader", "Module %s has not bootargs!\n", + module->name); + } + + return (GRUB_ERR_NONE); +} + +static grub_err_t +install_all_params (void) +{ + grub_efi_boot_services_t *b; + grub_efi_status_t status; + grub_efi_guid_t fdt_guid = GRUB_EFI_DEVICE_TREE_GUID; + + b = grub_efi_system_table->boot_services; + status = b->install_configuration_table (&fdt_guid, multiboot_fdt); + if (status != GRUB_EFI_SUCCESS) + { + grub_dprintf ("multiboot_loader", + "Installed/updated FDT configuration table fail %p\n", + multiboot_fdt); + return (GRUB_ERR_BAD_OS); + } + + grub_dprintf ("multiboot_loader", + "Installed/updated FDT configuration table @ %p\n", + multiboot_fdt); + return (GRUB_ERR_NONE); +} + +static grub_err_t +clean_all_params (void) +{ + if (multiboot_fdt) + { + grub_efi_free_pages ((grub_efi_physical_address_t) multiboot_fdt, + BYTES_TO_PAGES (grub_fdt_get_totalsize + (multiboot_fdt))); + multiboot_fdt = NULL; + } + return (GRUB_ERR_NONE); +} + +static grub_err_t +init_module_info (multiboot_module_t module, int *argc, char **argv[]) +{ + fdt_node_info_t node_info = + (fdt_node_info_t) grub_zalloc (sizeof (struct fdt_node_info)); + if (!node_info) + return (grub_error (GRUB_ERR_OUT_OF_MEMORY, N_("out of memory"))); + module->extra_info = (void *) node_info; + + /* get module type */ + grub_errno = set_module_type (module, argc, argv); + if (grub_errno != GRUB_ERR_NONE) + return (grub_errno); + + switch (node_info->type) + { + case MODULE_IMAGE: + case MODULE_INITRD: + case MODULE_OTHER: + node_info->compatible = default_compatible[node_info->type].compatible; + node_info->compatible_size = default_compatible[node_info->type].size; + break; + + case MODULE_CUSTOM: + /* node_info->compatible_size has set in set_module_type() */ + node_info->compatible = node_info->compatible_custom; + break; + + default: + return (grub_error (GRUB_ERR_BAD_ARGUMENT, N_("error module type"))); + } + module->name = node_info->compatible; + module->align = module_default_align[node_info->type]; + + grub_dprintf ("multiboot_loader", "Init %s module and node info:\n" + "compatible %s\ncompatible_size 0x%lx\n", + module->name, + node_info->compatible, node_info->compatible_size); + + return (GRUB_ERR_NONE); +} + +static grub_err_t +finalize_params_multiboot (void) +{ + multiboot_module_t module; + grub_err_t retval; + + /* Set Multiboot Kernel params info */ + module = + (multiboot_module_t) + grub_named_list_find (GRUB_AS_NAMED_LIST (module_head), + GRUB_MULTIBOOT_KERNEL_NAME); + + if (module) + { + kernel = module; + retval = prepare_kernel_params (module); + if (retval != GRUB_ERR_NONE) + goto failure_kernel; + grub_list_remove (GRUB_AS_LIST (module)); + } + else + { + grub_dprintf ("multiboot_loader", + "Please load Multiboot Kernel first!\n"); + goto failure; + } + + /* Set module params info */ + FOR_LIST_ELEMENTS (module, module_head) + { + if (module->start && module->size > 0) + { + grub_dprintf ("multiboot_loader", "Module %s @ 0x%lx size:0x%lx\n", + module->name, + multiboot_address_align (module->start, module->align), + module->size); + retval = prepare_module_params (module); + if (retval != GRUB_ERR_NONE) + goto failure_module; + } + else + { + grub_dprintf ("multiboot_loader", "Module info error: %s!\n", + module->name); + goto failure_module; + } + } + grub_list_push (GRUB_AS_LIST_P (&module_head), GRUB_AS_LIST (kernel)); + + if (install_all_params () != GRUB_ERR_NONE) + { + goto failure_kernel; + } + + return (GRUB_ERR_NONE); + +failure_module: + grub_list_push (GRUB_AS_LIST_P (&module_head), GRUB_AS_LIST (kernel)); +failure_kernel: + clean_all_params (); +failure: + return (grub_error (GRUB_ERR_BAD_OS, "failed to install/update FDT")); +} + + +static grub_err_t +grub_multiboot_boot (void) +{ + if (finalize_params_multiboot () != GRUB_ERR_NONE) + return (grub_errno); + + return (grub_arm64_uefi_boot_image + (kernel->start, kernel->size, kernel->cmdline)); +} + +static void +single_module_unload (multiboot_module_t module) +{ + if (module && module->start && module->size > 0) + { + grub_efi_free_pages ((grub_efi_physical_address_t) module->start, + BYTES_TO_PAGES (module->size + module->align)); + } + if (module && module->cmdline && module->cmdline_size > 0) + { + grub_free (module->cmdline); + grub_dprintf ("multiboot_loader", + "Module %s cmdline memory free @ %p size: %d\n", + module->name, module->cmdline, module->cmdline_size); + } + if (module) + { + clean_extra_info (module); + grub_list_remove (GRUB_AS_LIST (module)); + grub_dprintf ("multiboot_loader", + "Module %s struct memory free @ %p size: 0x%lx\n", + module->name, module, sizeof (module)); + grub_free (module); + } + return; +} + +static grub_err_t +grub_module_unload_all (void) +{ + multiboot_module_t module; + + FOR_LIST_ELEMENTS (module, module_head) + { + single_module_unload (module); + } + + return (GRUB_ERR_NONE); +} + +static grub_err_t +grub_multiboot_unload (void) +{ + loaded = 0; + grub_module_unload_all (); + clean_all_params (); + grub_dl_unref (linux_mod); + + return (GRUB_ERR_NONE); +} + +static grub_err_t +grub_module_load (multiboot_module_t module, grub_file_t file, + int argc, char *argv[]) +{ + module->size = grub_file_size (file); + grub_dprintf ("multiboot_loader", "Multiboot %s file size: 0x%lx\n", + module->name, module->size); + + module->start = (grub_addr_t) grub_efi_allocate_pages (0, + (BYTES_TO_PAGES + (module->size + + module->align))); + if (!module->start) + return (grub_error (GRUB_ERR_OUT_OF_MEMORY, N_("out of memory"))); + + grub_dprintf ("multiboot_loader", "Multiboot %s numpages: 0x%lx\n", + module->name, BYTES_TO_PAGES (module->size + module->align)); + + if (grub_file_read (file, + (void *) multiboot_address_align (module->start, + module->align), + module->size) < (grub_ssize_t) module->size) + { + single_module_unload (module); + return (grub_error (GRUB_ERR_BAD_OS, + N_("premature end of file %s"), argv[0])); + } + + /* Skip the multiboot module file name */ + argc--; + argv++; + + if (argc > 0) + { + module->cmdline_size = grub_loader_cmdline_size (argc, argv); + module->cmdline = grub_zalloc (module->cmdline_size); + if (!module->cmdline) + { + single_module_unload (module); + return (grub_error (GRUB_ERR_OUT_OF_MEMORY, N_("out of memory"))); + } + grub_create_loader_cmdline (argc, argv, + module->cmdline, module->cmdline_size); + grub_dprintf ("multiboot_loader", + "Multiboot %s cmdline @ %p %s, size: %d\n", module->name, + module->cmdline, module->cmdline, module->cmdline_size); + } + else + { + module->cmdline_size = 0; + module->cmdline = NULL; + } + + return (GRUB_ERR_NONE); +} + +static grub_err_t +grub_cmd_module (grub_command_t cmd __attribute__ ((unused)), + int argc, char *argv[]) +{ + + grub_file_t file = 0; + multiboot_module_t module = NULL; + + if (argc == 0) + { + grub_error (GRUB_ERR_BAD_ARGUMENT, N_("filename expected")); + goto fail; + } + + if (!loaded) + { + grub_error (GRUB_ERR_BAD_ARGUMENT, + N_("Please use multiboot command first")); + goto fail; + } + + module = + (multiboot_module_t) grub_zalloc (sizeof (struct multiboot_module)); + if (!module) + return (grub_error (GRUB_ERR_OUT_OF_MEMORY, N_("out of memory"))); + + grub_errno = init_module_info (module, &argc, &argv); + if (grub_errno != GRUB_ERR_NONE) + goto fail; + + file = grub_file_open (argv[0]); + if (!file) + goto fail; + + grub_errno = grub_module_load (module, file, argc, argv); + + if (grub_errno == GRUB_ERR_NONE) + grub_list_push (GRUB_AS_LIST_P (&module_head), GRUB_AS_LIST (module)); + +fail: + if (file) + grub_file_close (file); + if (grub_errno != GRUB_ERR_NONE) + single_module_unload (module); + + return (grub_errno); +} + +static grub_err_t +grub_cmd_multiboot (grub_command_t cmd __attribute__ ((unused)), + int argc, char *argv[]) +{ + grub_file_t file = NULL; + multiboot_module_t module = NULL; + struct stub_header sh; + + grub_dl_ref (linux_mod); + + if (argc == 0) + { + grub_error (GRUB_ERR_BAD_ARGUMENT, N_("filename expected")); + goto fail; + } + + file = grub_file_open (argv[0]); + if (!file) + goto fail; + + if (grub_file_read (file, &sh, sizeof (sh)) < (long) sizeof (sh)) + goto fail; + if (grub_arm64_uefi_check_image + ((struct grub_arm64_linux_kernel_header *) &sh) != GRUB_ERR_NONE) + goto fail; + grub_file_seek (file, 0); + + grub_loader_unset (); + + module = + (multiboot_module_t) grub_zalloc (sizeof (struct multiboot_module)); + if (!module) + return (grub_error (GRUB_ERR_OUT_OF_MEMORY, N_("out of memory"))); + + module->name = GRUB_MULTIBOOT_KERNEL_NAME; + module->extra_info = NULL; + module->align = (grub_size_t) sh.optional_header.section_alignment; + + grub_errno = grub_module_load (module, file, argc, argv); + + if (grub_errno == GRUB_ERR_NONE) + { + grub_list_push (GRUB_AS_LIST_P (&module_head), GRUB_AS_LIST (module)); + grub_loader_set (grub_multiboot_boot, grub_multiboot_unload, 0); + loaded = 1; + } + +fail: + if (file) + grub_file_close (file); + if (grub_errno != GRUB_ERR_NONE) + { + loaded = 0; + grub_module_unload_all (); + grub_dl_unref (linux_mod); + } + + return (grub_errno); +} + +static grub_command_t cmd_multiboot, cmd_module; + +void +grub_arm64_linux_register_multiboot_command (grub_dl_t mod) +{ + cmd_multiboot = + grub_register_command ("multiboot", grub_cmd_multiboot, 0, + N_("Load a multiboot kernel.")); + cmd_module = + grub_register_command ("module", grub_cmd_module, 0, + N_("Load a multiboot module.")); + linux_mod = mod; +} + +void +grub_arm64_linux_unregister_multiboot_command (void) +{ + grub_unregister_command (cmd_multiboot); + grub_unregister_command (cmd_module); +} diff --git a/include/grub/arm64/multiboot.h b/include/grub/arm64/multiboot.h new file mode 100644 index 0000000..e506b46 --- /dev/null +++ b/include/grub/arm64/multiboot.h @@ -0,0 +1,114 @@ +/* + * multiboot.h - Multiboot header file for Xen multiboot via FDT + * on AArch64 architecture. + * Copyright (C) 2014 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/>. + */ + +#ifndef MULTIBOOT_HEADER +#define MULTIBOOT_HEADER 1 + +#include <grub/list.h> +#include <grub/types.h> +#include <grub/efi/pe32.h> /* required by struct stub_header */ + +#define GRUB_MULTIBOOT_KERNEL_NAME "multiboot_kernel" + +#define MODULE_DEFAULT_ALIGN (0x0) +#define MODULE_IMAGE_MIN_ALIGN MODULE_DEFAULT_ALIGN +#define MODULE_INITRD_MIN_ALIGN MODULE_DEFAULT_ALIGN +#define MODULE_OTHER_MIN_ALIGN MODULE_DEFAULT_ALIGN +#define MODULE_CUSTOM_MIN_ALIGN MODULE_DEFAULT_ALIGN + +#define MODULE_IMAGE_COMPATIBLE "multiboot,kernel\0multiboot,module" +#define MODULE_INITRD_COMPATIBLE "multiboot,ramdisk\0multiboot,module" +#define MODULE_OTHER_COMPATIBLE "multiboot,module" + +/* This maximum size is defined in Power.org ePAPR V1.1 + * https://www.power.org/documentation/epapr-version-1-1/ + * 2.2.1.1 Node Name Requirements + * node-name@unit-address + * 31 + 1(@) + 16(64bit address in hex format) + 1(\0) = 49 + */ +#define FDT_NODE_NAME_MAX_SIZE (49) + +struct compatible_struct +{ + grub_size_t size; + const char *compatible; +}; +typedef struct compatible_struct compatible_struct_t; +#define FDT_COMPATIBLE(x) {.size = sizeof(x), .compatible = x} + +enum module_type +{ + MODULE_IMAGE, + MODULE_INITRD, + MODULE_OTHER, + MODULE_CUSTOM +}; +typedef enum module_type module_type_t; + +struct fdt_node_info +{ + module_type_t type; + + const char *compatible; + char *compatible_custom; + grub_size_t compatible_size; +}; +typedef struct fdt_node_info *fdt_node_info_t; + +struct stub_header +{ + struct grub_arm64_linux_kernel_header efi_head; + + /* This is always PE\0\0. */ + grub_uint8_t signature[GRUB_PE32_SIGNATURE_SIZE]; + /* The COFF file header. */ + struct grub_pe32_coff_header coff_header; + /* The Optional header. */ + struct grub_pe64_optional_header optional_header; +}; +typedef struct stub_header *stub_header_t; + +struct multiboot_module +{ + struct multiboot_module *next; + struct multiboot_module **prev; + const char *name; + + grub_addr_t start; + grub_size_t size; + grub_size_t align; + + char *cmdline; + int cmdline_size; + + /* for more info */ + void *extra_info; +}; +typedef struct multiboot_module *multiboot_module_t; + +void grub_arm64_linux_register_multiboot_command (grub_dl_t mod); +void grub_arm64_linux_unregister_multiboot_command (void); + +static __inline grub_addr_t +multiboot_address_align (grub_addr_t start, grub_size_t align) +{ + return (align ? (ALIGN_UP (start, align)) : start); +} + +#endif /* ! MULTIBOOT_HEADER */ -- 1.9.1

10 years, 1 month

question on EDK build patch step

by Ravi Chhabra

Hi, I am trying to build edk by following the steps in readme file. For some reason, I am unable to patch the files. Getting following error: edk2> patch -p1 < ArmPlatformPkg/Documentation/patches/BaseTools-Pending-Patches.patch patching file BaseTools/Source/C/GenFw/Elf32Convert.c Hunk #1 FAILED at 1. Hunk #2 FAILED at 18. Hunk #3 FAILED at 264. Hunk #4 FAILED at 291. Hunk #5 FAILED at 315. 5 out of 5 hunks FAILED -- saving rejects to file BaseTools/Source/C/GenFw/Elf32Convert.c.rej patching file BaseTools/Source/C/GenFw/Elf64Convert.c Hunk #1 FAILED at 19. Hunk #2 FAILED at 258. Hunk #3 FAILED at 286. Hunk #4 FAILED at 310. 4 out of 4 hunks FAILED -- saving rejects to file BaseTools/Source/C/GenFw/Elf64Convert.c.rej Please help. Thanks, Ravi C

10 years, 1 month

[PATCH v3 1/3] fdt: Add grub_fdt_set_reg64 macro into fdt.h header file

by Fu Wei

fdt: Add grub_fdt_set_reg64 macro into fdt.h header file for inserting "reg" properiy, while #address-cells = <0x2> and #size-cells = <0x2> Signed-off-by: Fu Wei <fu.wei(a)linaro.org> --- include/grub/fdt.h | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/include/grub/fdt.h b/include/grub/fdt.h index 3016998..fdfca75 100644 --- a/include/grub/fdt.h +++ b/include/grub/fdt.h @@ -117,4 +117,16 @@ int grub_fdt_set_prop (void *fdt, unsigned int nodeoffset, const char *name, grub_fdt_set_prop ((fdt), (nodeoffset), (name), &_val, 8); \ }) +/* Setup "reg" property for + * #address-cells = <0x2> + * #size-cells = <0x2> + */ +#define grub_fdt_set_reg64(fdt, nodeoffset, addr, size) \ +({ \ + grub_uint64_t reg_64[2]; \ + reg_64[0] = grub_cpu_to_be64(addr); \ + reg_64[1] = grub_cpu_to_be64(size); \ + grub_fdt_set_prop ((fdt), (nodeoffset), "reg", reg_64, 16); \ +}) + #endif /* ! GRUB_FDT_HEADER */ -- 1.9.1

10 years, 1 month

[PATCH v3 2/3] arm64: Make some shared functions for multiboot.c in linux.c

by Fu Wei

arm64: Make some shared functions for multiboot.c Move some #define from grub-core/loader/arm64/linux.c to include/grub/arm64/linux.h Reason: (1)make code more orderly (2)these #define can be used by other files which includs include/grub/arm64/linux.h Signed-off-by: Fu Wei <fu.wei(a)linaro.org> --- grub-core/loader/arm64/linux.c | 160 ++++++++++++++++++++--------------------- include/grub/arm64/linux.h | 15 +++- 2 files changed, 90 insertions(+), 85 deletions(-) diff --git a/grub-core/loader/arm64/linux.c b/grub-core/loader/arm64/linux.c index 564a75a..b030b05 100644 --- a/grub-core/loader/arm64/linux.c +++ b/grub-core/loader/arm64/linux.c @@ -33,12 +33,6 @@ GRUB_MOD_LICENSE ("GPLv3+"); -#define GRUB_EFI_PAGE_SHIFT 12 -#define BYTES_TO_PAGES(bytes) (((bytes) + 0xfff) >> GRUB_EFI_PAGE_SHIFT) -#define GRUB_EFI_PE_MAGIC 0x5A4D - -static grub_efi_guid_t fdt_guid = GRUB_EFI_DEVICE_TREE_GUID; - static grub_dl_t my_mod; static int loaded; @@ -58,6 +52,7 @@ 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; @@ -75,8 +70,8 @@ get_firmware_fdt (void) return firmware_fdt; } -static void -get_fdt (void) +void * +grub_linux_get_fdt (void) { void *raw_fdt; grub_size_t size; @@ -99,7 +94,7 @@ get_fdt (void) grub_dprintf ("linux", "allocating %ld bytes for fdt\n", size); fdt = grub_efi_allocate_pages (0, BYTES_TO_PAGES (size)); if (!fdt) - return; + return NULL; if (raw_fdt) { @@ -110,13 +105,14 @@ get_fdt (void) { grub_fdt_create_empty_tree (fdt, size); } + return (fdt); } -static grub_err_t -check_kernel (struct grub_arm64_linux_kernel_header *lh) +grub_err_t +grub_arm64_uefi_check_image (struct grub_arm64_linux_kernel_header * lh) { if (lh->magic != GRUB_ARM64_LINUX_MAGIC) - return grub_error(GRUB_ERR_BAD_OS, "invalid magic number"); + return grub_error (GRUB_ERR_BAD_OS, "invalid magic number"); if ((lh->code0 & 0xffff) != GRUB_EFI_PE_MAGIC) return grub_error (GRUB_ERR_NOT_IMPLEMENTED_YET, @@ -130,15 +126,74 @@ check_kernel (struct grub_arm64_linux_kernel_header *lh) return GRUB_ERR_NONE; } +grub_err_t +grub_arm64_uefi_boot_image (grub_addr_t addr, grub_size_t size, char *args) +{ + grub_efi_memory_mapped_device_path_t *mempath; + grub_efi_handle_t image_handle; + grub_efi_boot_services_t *b; + grub_efi_status_t status; + grub_efi_loaded_image_t *loaded_image; + int len; + + mempath = grub_malloc (2 * sizeof (grub_efi_memory_mapped_device_path_t)); + if (!mempath) + return grub_errno; + + mempath[0].header.type = GRUB_EFI_HARDWARE_DEVICE_PATH_TYPE; + mempath[0].header.subtype = GRUB_EFI_MEMORY_MAPPED_DEVICE_PATH_SUBTYPE; + mempath[0].header.length = grub_cpu_to_le16_compile_time (sizeof (*mempath)); + mempath[0].memory_type = GRUB_EFI_LOADER_DATA; + mempath[0].start_address = addr; + mempath[0].end_address = addr + size; + + mempath[1].header.type = GRUB_EFI_END_DEVICE_PATH_TYPE; + mempath[1].header.subtype = GRUB_EFI_END_ENTIRE_DEVICE_PATH_SUBTYPE; + mempath[1].header.length = sizeof (grub_efi_device_path_t); + + b = grub_efi_system_table->boot_services; + status = b->load_image (0, grub_efi_image_handle, + (grub_efi_device_path_t *) mempath, + (void *) addr, size, &image_handle); + if (status != GRUB_EFI_SUCCESS) + return grub_error (GRUB_ERR_BAD_OS, "cannot load image"); + + grub_dprintf ("linux", "linux command line: '%s'\n", args); + + /* Convert command line to UCS-2 */ + loaded_image = grub_efi_get_loaded_image (image_handle); + loaded_image->load_options_size = len = + (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)); + if (!loaded_image->load_options) + return grub_errno; + + loaded_image->load_options_size = + 2 * grub_utf8_to_utf16 (loaded_image->load_options, len, + (grub_uint8_t *) args, len, NULL); + + grub_dprintf ("linux", "starting image %p\n", image_handle); + status = b->start_image (image_handle, 0, NULL); + + /* 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)); + + return grub_errno; +} + static grub_err_t -finalize_params (void) +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; - get_fdt (); - if (!fdt) + if (!grub_linux_get_fdt ()) goto failure; node = grub_fdt_find_subnode (fdt, 0, "chosen"); @@ -189,13 +244,6 @@ grub_cmd_devicetree (grub_command_t cmd __attribute__ ((unused)), 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")); @@ -243,65 +291,11 @@ out: static grub_err_t grub_linux_boot (void) { - grub_efi_memory_mapped_device_path_t *mempath; - grub_efi_handle_t image_handle; - grub_efi_boot_services_t *b; - grub_efi_status_t status; - grub_err_t retval; - grub_efi_loaded_image_t *loaded_image; - int len; - - retval = finalize_params(); - if (retval != GRUB_ERR_NONE) - return retval; - - mempath = grub_malloc (2 * sizeof (grub_efi_memory_mapped_device_path_t)); - if (!mempath) - return grub_errno; - - mempath[0].header.type = GRUB_EFI_HARDWARE_DEVICE_PATH_TYPE; - mempath[0].header.subtype = GRUB_EFI_MEMORY_MAPPED_DEVICE_PATH_SUBTYPE; - mempath[0].header.length = grub_cpu_to_le16_compile_time (sizeof (*mempath)); - mempath[0].memory_type = GRUB_EFI_LOADER_DATA; - mempath[0].start_address = (grub_addr_t) kernel_addr; - mempath[0].end_address = (grub_addr_t) kernel_addr + kernel_size; - - mempath[1].header.type = GRUB_EFI_END_DEVICE_PATH_TYPE; - mempath[1].header.subtype = GRUB_EFI_END_ENTIRE_DEVICE_PATH_SUBTYPE; - mempath[1].header.length = sizeof (grub_efi_device_path_t); - - b = grub_efi_system_table->boot_services; - status = b->load_image (0, grub_efi_image_handle, - (grub_efi_device_path_t *) mempath, - kernel_addr, kernel_size, &image_handle); - if (status != GRUB_EFI_SUCCESS) - return grub_error (GRUB_ERR_BAD_OS, "cannot load image"); - - grub_dprintf ("linux", "linux command line: '%s'\n", linux_args); - - /* Convert command line to UCS-2 */ - loaded_image = grub_efi_get_loaded_image (image_handle); - loaded_image->load_options_size = len = - (grub_strlen (linux_args) + 1) * sizeof (grub_efi_char16_t); - loaded_image->load_options = - grub_efi_allocate_pages (0, - BYTES_TO_PAGES (loaded_image->load_options_size)); - if (!loaded_image->load_options) + if (finalize_params_linux () != GRUB_ERR_NONE) return grub_errno; - loaded_image->load_options_size = - 2 * grub_utf8_to_utf16 (loaded_image->load_options, len, - (grub_uint8_t *) linux_args, len, NULL); - - grub_dprintf("linux", "starting image %p\n", image_handle); - status = b->start_image (image_handle, 0, NULL); - - /* 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)); - - return grub_errno; + return (grub_arm64_uefi_boot_image((grub_addr_t)kernel_addr, + kernel_size, linux_args)); } static grub_err_t @@ -367,7 +361,7 @@ grub_cmd_initrd (grub_command_t cmd __attribute__ ((unused)), grub_dprintf ("linux", "[addr=%p, size=0x%x]\n", (void *) initrd_start, initrd_size); - fail: +fail: grub_initrd_close (&initrd_ctx); if (initrd_mem && !initrd_start) grub_efi_free_pages ((grub_efi_physical_address_t) initrd_mem, @@ -400,10 +394,10 @@ grub_cmd_linux (grub_command_t cmd __attribute__ ((unused)), if (grub_file_read (file, &lh, sizeof (lh)) < (long) sizeof (lh)) return grub_errno; - if (check_kernel (&lh) != GRUB_ERR_NONE) + if (grub_arm64_uefi_check_image (&lh) != GRUB_ERR_NONE) goto fail; - grub_loader_unset(); + 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)); @@ -450,8 +444,8 @@ fail: if (grub_errno != GRUB_ERR_NONE) { - grub_dl_unref (my_mod); loaded = 0; + grub_dl_unref (my_mod); } if (linux_args && !loaded) diff --git a/include/grub/arm64/linux.h b/include/grub/arm64/linux.h index 864e5dc..81f050b 100644 --- a/include/grub/arm64/linux.h +++ b/include/grub/arm64/linux.h @@ -21,14 +21,18 @@ #include <grub/efi/efi.h> -#define GRUB_ARM64_LINUX_MAGIC 0x644d5241 /* 'ARM\x64' */ +#define GRUB_ARM64_LINUX_MAGIC 0x644d5241 /* 'ARM\x64' */ + +#define GRUB_EFI_PAGE_SHIFT 12 +#define BYTES_TO_PAGES(bytes) (((bytes) + 0xfff) >> GRUB_EFI_PAGE_SHIFT) +#define GRUB_EFI_PE_MAGIC 0x5A4D /* From linux/Documentation/arm64/booting.txt */ struct grub_arm64_linux_kernel_header { grub_uint32_t code0; /* Executable code */ grub_uint32_t code1; /* Executable code */ - grub_uint64_t text_offset; /* Image load offset */ + grub_uint64_t text_offset; /* Image load offset */ grub_uint64_t res0; /* reserved */ grub_uint64_t res1; /* reserved */ grub_uint64_t res2; /* reserved */ @@ -38,4 +42,11 @@ struct grub_arm64_linux_kernel_header grub_uint32_t hdr_offset; /* Offset of PE/COFF header */ }; +/* Declare the accessor functions for getting dtb and checking/booting image */ +void *grub_linux_get_fdt (void); +grub_err_t grub_arm64_uefi_check_image (struct grub_arm64_linux_kernel_header + *lh); +grub_err_t grub_arm64_uefi_boot_image (grub_addr_t addr, grub_size_t size, + char *args); + #endif /* ! GRUB_LINUX_CPU_HEADER */ -- 1.9.1

10 years, 1 month

[PATCH v3 0/3]arm64: Add multiboot support (via fdt) for Xen boot

by Fu Wei

arm64:Add multiboot support (via fdt) for Xen boot - This multiboot support is built into linux module for aarch64. - The implementation for Xen is following <Multiboot on ARM Specification>: http://wiki.xen.org/wiki/Xen_ARM_with_Virtualization_Extensions/Multiboot and xen/docs/misc/arm/device-tree/booting.txt in Xen source code. - The example of this support is <How to boot Xen with GRUB on AArch64 the Foundation FVP model> https://wiki.linaro.org/LEG/Engineering/Grub2/Xen_booting_on_Foundation_FVP… - This adds support for the Xen Multiboot on ARM specification for arm64, enabling config file portability across the architectures. - The multiboot command is currently x86-only, so reusing these command names should not conflict with any future additions of ARM support to multiboot2. - The reason of adding this functionality to the existing "linux" module rather than "multiboot(2)" (1)multiboot is x86 only (2)Multiboot is added to "linux" module because it reuses existing code. - Some changes in original linux module code Move some #define from grub-core/loader/arm64/linux.c to include/grub/arm64/linux.h Reason: (1)make code more orderly (2)these #define can be used by other files which includs include/grub/arm64/linux.h Make some shared functions for multiboot.c - Add grub_fdt_set_reg64 macro into fdt.h header file for inserting "reg" properiy, while #address-cells = <0x2> and #size-cells = <0x2> This multiboot support will be built in linux module for aarch64, and can not be used alone. grub-core/Makefile.core.def | 1 + grub-core/loader/arm64/linux.c | 166 +++++----- grub-core/loader/arm64/multiboot.c | 623 +++++++++++++++++++++++++++++++++++++ include/grub/arm64/linux.h | 15 +- include/grub/arm64/multiboot.h | 114 +++++++ include/grub/fdt.h | 12 + 6 files changed, 846 insertions(+), 85 deletions(-) create mode 100644 grub-core/loader/arm64/multiboot.c create mode 100644 include/grub/arm64/multiboot.h Signed-off-by: Fu Wei <fu.wei(a)linaro.org>

10 years, 1 month

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Linaro-uefi October 2014