Linaro-uefi November 2014

linaro-uefi@lists.linaro.org

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[PATCH v5 5/5] arm64: Add the introduction of multiboot/module, command in docs/grub.texi

by Fu Wei

arm64: Add the introduction of multiboot/module command in docs/grub.texi Signed-off-by: Fu Wei <fu.wei(a)linaro.org> --- docs/grub.texi | 25 +++++++++++++++++++++++++ 1 file changed, 25 insertions(+) diff --git a/docs/grub.texi b/docs/grub.texi index 46b9e7f..084b40e 100644 --- a/docs/grub.texi +++ b/docs/grub.texi @@ -4512,6 +4512,29 @@ Alias for @code{hashsum --hash md5 arg @dots{}}. See command @command{hashsum} @deffn Command module [--nounzip] file [arguments] Load a module for multiboot kernel image. The rest of the line is passed verbatim as the module command line. + +Note that on ARM64 machine, there is not [--nounzip] support. +Each module will be given a default compatibility property based on the order + in which the modules are added: + +The first module will be: compatible = "multiboot,kernel", "multiboot,module" + +The second module will be: compatible = "multiboot,ramdisk", "multiboot,module" + +All subsequent modules will be: compatible = "multiboot,module" + +There is a [--type <compatible stream in FDT>] option to +override default compatible string for the current module. May be given multiple +times, the strings will be listed in the compatible property in the order given. +Note that this means that the generic "multiboot,module" would need to be specified +separately if desired. Modules which are given an explicit compatibility do not +"consume" a default. In addition even if --type is used to specify something +which is also a default it will not be consumed. For now, the available strings +could be : +"multiboot,kernel", "multiboot,ramdisk", "multiboot,module", "xen,xsm-policy" +or the custom compatible stream. +See @uref{http://wiki.xen.org/wiki/Xen_ARM_with_Virtualization_Extensions/Multiboot}, + to obtain more information. @end deffn @node multiboot @@ -4523,6 +4546,8 @@ line is passed verbatim as the @dfn{kernel command-line}. Any module must be reloaded after using this command (@pxref{module}). Some kernels have known problems. You need to specify --quirk-* for those. +There is not --quirk-* support on ARM64 machine. + --quirk-bad-kludge is a problem seen in several products that they include loading kludge information with invalid data in ELF file. GRUB prior to 0.97 and some custom builds prefered ELF information while 0.97 and GRUB 2 -- 1.8.3.1

10 years

[PATCH v5 4/5] 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..a9538b8 --- /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 install/update 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 install/update FDT")); + + 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 install/update 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 install/update FDT")); + + 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 install/update FDT"))); + + 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 install/update FDT"))); + + 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 install/update FDT")); + } + 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_("you need to load the kernel 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

[PATCH v5 3/5] 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> Reviewed-by: Leif Lindholm <leif.lindholm(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

[PATCH v5 2/5] 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> Reviewed-by: Leif Lindholm <leif.lindholm(a)linaro.org> --- grub-core/loader/arm64/linux.c | 59 +++++++++++++++++++++--------------------- include/grub/arm64/linux.h | 11 ++++++++ 2 files changed, 41 insertions(+), 29 deletions(-) diff --git a/grub-core/loader/arm64/linux.c b/grub-core/loader/arm64/linux.c index 564a75a..987f5b9 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) { @@ -110,10 +105,11 @@ 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"); @@ -131,14 +127,14 @@ check_kernel (struct grub_arm64_linux_kernel_header *lh) } 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"); @@ -240,21 +236,16 @@ out: return grub_errno; } -static grub_err_t -grub_linux_boot (void) +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_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; @@ -263,8 +254,8 @@ grub_linux_boot (void) 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[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; @@ -273,16 +264,16 @@ grub_linux_boot (void) 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); + (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", linux_args); + 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 (linux_args) + 1) * sizeof (grub_efi_char16_t); + (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)); @@ -291,9 +282,9 @@ grub_linux_boot (void) loaded_image->load_options_size = 2 * grub_utf8_to_utf16 (loaded_image->load_options, len, - (grub_uint8_t *) linux_args, len, NULL); + (grub_uint8_t *) args, len, NULL); - grub_dprintf("linux", "starting image %p\n", image_handle); + grub_dprintf ("linux", "starting image %p\n", image_handle); status = b->start_image (image_handle, 0, NULL); /* When successful, not reached */ @@ -305,6 +296,16 @@ grub_linux_boot (void) } static grub_err_t +grub_linux_boot (void) +{ + if (finalize_params_linux () != GRUB_ERR_NONE) + return grub_errno; + + return (grub_arm64_uefi_boot_image((grub_addr_t)kernel_addr, + kernel_size, linux_args)); +} + +static grub_err_t grub_linux_unload (void) { grub_dl_unref (my_mod); @@ -400,7 +401,7 @@ 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(); diff --git a/include/grub/arm64/linux.h b/include/grub/arm64/linux.h index 864e5dc..65796d9 100644 --- a/include/grub/arm64/linux.h +++ b/include/grub/arm64/linux.h @@ -23,6 +23,10 @@ #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 { @@ -38,4 +42,11 @@ struct grub_arm64_linux_kernel_header grub_uint32_t hdr_offset; /* Offset of PE/COFF header */ }; +/* Declare the 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 */ -- 1.8.3.1

10 years

[PATCH v5 1/5]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

[PATCH v5 0/5]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> - Add the introduction of multiboot/module command in docs/grub.texi This multiboot support will be built in linux module for aarch64, and can not be used alone. docs/grub.texi | 25 ++ 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 + 7 files changed, 793 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

AARCH64 GIC updates for 64 bit

by Sandeep Paulraj

Hi, I have added support for a future Broadcom server SOC in edk2. I have booted all the way to the console. WE have some tweaks to the fast model to model the device. Along the way one of the updates i had to make was adding support for GIC in a 64 bit memory map. The patch is along similar lines to patches that have been posted recently on the mailing list. Couple of questions - Can this patch be submitted for review; i don't believe i will be sending the patches for our fast model based port. - Since i am a little new to UEFI, do i actually need to modify the PCD's for other platforms in the appropriate .dec files. If platforms have GIC in the lower 32 bit, do i have to change the PCD definition to a UINT64 from a UINT32?

10 years, 1 month

meta-linaro and upstream oe-core

by Matt Fleming

Hi, Naresh and I have been working together over the past few weeks to get the Linux UEFI Validation project [0] building for ARMv8, and while progress is being made, there's been a couple of obstacles along the way. The main problem is that I think there are parts of meta-linaro that really need to be upstream in openembedded-core, like the meta-aarch64 layer. Traditionally the way development of the LUV project has gone is that all the necessary core architecture support has been handled upstream in oe-core (and subsequently poky) and only the UEFI/ACPI testing components have been handled in the separate meta-luv layer. The luv-yocto repository [0] is an umbrella repository that combines poky and meta-luv, intended to alleviate the need for developers to do any layer integration themselves. We only require very minimal architecture support and genericx86-64 has been adequate for all our needs so far, and I had originally assumed that genericaarch64 would be OK for aarch64. But that target doesn't appear to be available upstream. Is anyone looking at getting parts of meta-linaro merged upstream? [0] - https://github.com/01org/luv-yocto -- Matt Fleming, Intel Open Source Technology Center

10 years, 1 month

Re: [Linaro-uefi] question on EDK build patch step

by Ravi Chhabra

Hi Olivier, Thank you so much for the reply. That was helpful. I was able to build successfully. I am quite a beginner in this area. I would appreciate if you could educate me on this. I am assigned the task of building the uefi boot package for our design. Design Details: (Simple Version) v8 architecture - (A53) UART - 0x4000_0000 Flash - 0x0000_0000 Internal RAM - 16MB External RAM At this point, my aim is to get uefi boot-up prompt through UART. I am trying to understand ARMVExpress package and planning to reuse that for the most part. Please correct me if that's not the right way. I would greatly appreciate if you could give me some direction. Thanks again. Thanks, Ravi C From: Olivier Martin [mailto:olivier.martin@arm.com] Sent: Wednesday, October 29, 2014 11:48 AM To: Ravi Chhabra; linaro-uefi(a)lists.linaro.org Subject: RE: question on EDK build patch step This patch is actually not required anymore. BaseTools should fully support ARM and AArch64. I will delete this patch now. Unfortunately I cannot update the wikipages. I cannot login anymore - I am waiting for the wikipage maintainer to fix it. From: linaro-uefi-bounces(a)lists.linaro.org<mailto:linaro-uefi-bounces@lists.linaro.org> [mailto:linaro-uefi-bounces@lists.linaro.org] On Behalf Of Ravi Chhabra Sent: 29 October 2014 18:00 To: linaro-uefi(a)lists.linaro.org<mailto:linaro-uefi@lists.linaro.org> Subject: [Linaro-uefi] question on EDK build patch step 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

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Linaro-uefi November 2014