5ec12d63114de94c04cf842704636c905a72aca5 arm/linux: Unify ARM/arm64 vs Xen PE/COFF header handling grub-core/loader/arm64/linux.c | 12 +++++++----- grub-core/loader/arm64/xen_boot.c | 23 ++++------------------- include/grub/arm/linux.h | 5 +++++ include/grub/arm64/linux.h | 2 ++ include/grub/efi/efi.h | 4 +++- 5 files changed, 21 insertions(+), 25 deletions(-) diff --git a/grub-core/loader/arm64/linux.c b/grub-core/loader/arm64/linux.c index b5b559c23..3733a69d6 100644 --- a/grub-core/loader/arm64/linux.c +++ b/grub-core/loader/arm64/linux.c @@ -49,8 +49,13 @@ static grub_addr_t initrd_start; static grub_addr_t initrd_end; grub_err_t -grub_arch_efi_linux_check_image (struct linux_arch_kernel_header * lh) +grub_arch_efi_linux_load_image_header (grub_file_t file, + struct linux_arch_kernel_header * lh) { + grub_file_seek (file, 0); + if (grub_file_read (file, lh, sizeof (*lh)) < (grub_ssize_t) sizeof (*lh)) + return grub_error(GRUB_ERR_FILE_READ_ERROR, "failed to read Linux image header"); + if ((lh->code0 & 0xffff) != GRUB_PE32_MAGIC) return grub_error (GRUB_ERR_NOT_IMPLEMENTED_YET, N_("plain image kernel not supported - rebuild with CONFIG_(U)EFI_STUB enabled")); @@ -301,10 +306,7 @@ grub_cmd_linux (grub_command_t cmd __attribute__ ((unused)), kernel_size = grub_file_size (file); - if (grub_file_read (file, &lh, sizeof (lh)) < (long) sizeof (lh)) - return grub_errno; - - if (grub_arch_efi_linux_check_image (&lh) != GRUB_ERR_NONE) + if (grub_arch_efi_linux_load_image_header (file, &lh) != GRUB_ERR_NONE) goto fail; grub_loader_unset(); diff --git a/grub-core/loader/arm64/xen_boot.c b/grub-core/loader/arm64/xen_boot.c index 22cc25ecc..763d87dcd 100644 --- a/grub-core/loader/arm64/xen_boot.c +++ b/grub-core/loader/arm64/xen_boot.c @@ -31,7 +31,6 @@ #include #include #include -#include /* required by struct xen_hypervisor_header */ #include #include @@ -65,18 +64,6 @@ enum module_type }; typedef enum module_type module_type_t; -struct xen_hypervisor_header -{ - struct linux_arm64_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 xen_boot_binary { struct xen_boot_binary *next; @@ -452,7 +439,7 @@ static grub_err_t grub_cmd_xen_hypervisor (grub_command_t cmd __attribute__ ((unused)), int argc, char *argv[]) { - struct xen_hypervisor_header sh; + struct linux_arm64_kernel_header lh; grub_file_t file = NULL; grub_dl_ref (my_mod); @@ -467,10 +454,7 @@ grub_cmd_xen_hypervisor (grub_command_t cmd __attribute__ ((unused)), if (!file) goto fail; - if (grub_file_read (file, &sh, sizeof (sh)) != (long) sizeof (sh)) - goto fail; - if (grub_arch_efi_linux_check_image - ((struct linux_arch_kernel_header *) &sh) != GRUB_ERR_NONE) + if (grub_arch_efi_linux_load_image_header (file, &lh) != GRUB_ERR_NONE) goto fail; grub_file_seek (file, 0); @@ -484,7 +468,8 @@ grub_cmd_xen_hypervisor (grub_command_t cmd __attribute__ ((unused)), return grub_errno; xen_hypervisor->is_hypervisor = 1; - xen_hypervisor->align = (grub_size_t) sh.optional_header.section_alignment; + xen_hypervisor->align + = (grub_size_t) lh.pe_image_header.optional_header.section_alignment; xen_boot_binary_load (xen_hypervisor, file, argc, argv); if (grub_errno == GRUB_ERR_NONE) diff --git a/include/grub/arm/linux.h b/include/grub/arm/linux.h index bcd5a7eb1..f38e695b1 100644 --- a/include/grub/arm/linux.h +++ b/include/grub/arm/linux.h @@ -22,6 +22,8 @@ #include "system.h" +#include + #define GRUB_LINUX_ARM_MAGIC_SIGNATURE 0x016f2818 struct linux_arm_kernel_header { @@ -32,6 +34,9 @@ struct linux_arm_kernel_header { grub_uint32_t end; /* _edata */ grub_uint32_t reserved2[3]; grub_uint32_t hdr_offset; +#if defined GRUB_MACHINE_EFI + struct grub_pe_image_header pe_image_header; +#endif }; #if defined(__arm__) diff --git a/include/grub/arm64/linux.h b/include/grub/arm64/linux.h index 7e22b4ab6..3da71a512 100644 --- a/include/grub/arm64/linux.h +++ b/include/grub/arm64/linux.h @@ -20,6 +20,7 @@ #define GRUB_ARM64_LINUX_HEADER 1 #include +#include #define GRUB_LINUX_ARM64_MAGIC_SIGNATURE 0x644d5241 /* 'ARM\x64' */ @@ -36,6 +37,7 @@ struct linux_arm64_kernel_header grub_uint64_t res4; /* reserved */ grub_uint32_t magic; /* Magic number, little endian, "ARM\x64" */ grub_uint32_t hdr_offset; /* Offset of PE/COFF header */ + struct grub_pe_image_header pe_image_header; }; #if defined(__aarch64__) diff --git a/include/grub/efi/efi.h b/include/grub/efi/efi.h index 83d958f99..36b90eded 100644 --- a/include/grub/efi/efi.h +++ b/include/grub/efi/efi.h @@ -100,7 +100,9 @@ extern void (*EXPORT_VAR(grub_efi_net_config)) (grub_efi_handle_t hnd, void *EXPORT_FUNC(grub_efi_get_firmware_fdt)(void); grub_err_t EXPORT_FUNC(grub_efi_get_ram_base)(grub_addr_t *); #include -grub_err_t grub_arch_efi_linux_check_image(struct linux_arch_kernel_header *lh); +#include +grub_err_t grub_arch_efi_linux_load_image_header(grub_file_t file, + struct linux_arch_kernel_header *lh); grub_err_t grub_arch_efi_linux_boot_image(grub_addr_t addr, grub_size_t size, char *args); #endif -- 2.39.2