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@linaro.org Reviewed-by: Leif Lindholm leif.lindholm@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 */
-
Fu Wei