Rather than setting up the global variables and then making the call, pass them into function directly. This cleans up the code and makes it all a bit easier to understand.
Signed-off-by: Simon Glass sjg@chromium.org ---
(no changes since v2)
Changes in v2: - Use efi_loader tag instead of efi - Drop unnecessary path removal - Fix 'require' typo - Move calculation of dev-name into a separate function
boot/bootmeth_efi.c | 49 +------------------------ include/efi_loader.h | 10 +++++ lib/efi_loader/efi_bootbin.c | 71 ++++++++++++++++++++++++++++++++++++ 3 files changed, 83 insertions(+), 47 deletions(-)
diff --git a/boot/bootmeth_efi.c b/boot/bootmeth_efi.c index f836aa655f5..fa7f66c9a0b 100644 --- a/boot/bootmeth_efi.c +++ b/boot/bootmeth_efi.c @@ -52,40 +52,6 @@ static bool bootmeth_uses_network(struct bootflow *bflow) device_get_uclass_id(media) == UCLASS_ETH; }
-static void set_efi_bootdev(struct blk_desc *desc, struct bootflow *bflow) -{ - const struct udevice *media_dev; - int size = bflow->size; - const char *dev_name; - char devnum_str[9]; - char dirname[200]; - char *last_slash; - - /* - * This is a horrible hack to tell EFI about this boot device. Once we - * unify EFI with the rest of U-Boot we can clean this up. The same hack - * exists in multiple places, e.g. in the fs, tftp and load commands. - * - * Once we can clean up the EFI code to make proper use of driver model, - * this can go away. - */ - media_dev = dev_get_parent(bflow->dev); - snprintf(devnum_str, sizeof(devnum_str), "%x:%x", - desc ? desc->devnum : dev_seq(media_dev), - bflow->part); - - strlcpy(dirname, bflow->fname, sizeof(dirname)); - last_slash = strrchr(dirname, '/'); - if (last_slash) - *last_slash = '\0'; - - dev_name = device_get_uclass_id(media_dev) == UCLASS_MASS_STORAGE ? - "usb" : blk_get_uclass_name(device_get_uclass_id(media_dev)); - log_debug("setting bootdev %s, %s, %s, %p, %x\n", - dev_name, devnum_str, bflow->fname, bflow->buf, size); - efi_set_bootdev(dev_name, devnum_str, bflow->fname, bflow->buf, size); -} - static int efiload_read_file(struct bootflow *bflow, ulong addr) { struct blk_desc *desc = NULL; @@ -103,8 +69,6 @@ static int efiload_read_file(struct bootflow *bflow, ulong addr) return log_msg_ret("read", ret); bflow->buf = map_sysmem(addr, bflow->size);
- set_efi_bootdev(desc, bflow); - return 0; }
@@ -342,17 +306,8 @@ static int distro_efi_boot(struct udevice *dev, struct bootflow *bflow) fdt = env_get_hex("fdt_addr_r", 0); }
- if (bflow->flags & BOOTFLOWF_USE_BUILTIN_FDT) { - log_debug("Booting with built-in fdt\n"); - if (efi_binary_run(map_sysmem(kernel, 0), bflow->size, - EFI_FDT_USE_INTERNAL)) - return log_msg_ret("run", -EINVAL); - } else { - log_debug("Booting with external fdt\n"); - if (efi_binary_run(map_sysmem(kernel, 0), bflow->size, - map_sysmem(fdt, 0))) - return log_msg_ret("run", -EINVAL); - } + if (efi_bootflow_run(bflow)) + return log_msg_ret("run", -EINVAL);
return 0; } diff --git a/include/efi_loader.h b/include/efi_loader.h index 9afbec35ebf..a9325b1a9d0 100644 --- a/include/efi_loader.h +++ b/include/efi_loader.h @@ -20,6 +20,7 @@ #include <linux/oid_registry.h>
struct blk_desc; +struct bootflow; struct jmp_buf_data;
#if CONFIG_IS_ENABLED(EFI_LOADER) @@ -578,6 +579,15 @@ efi_status_t efi_install_fdt(void *fdt); efi_status_t do_bootefi_exec(efi_handle_t handle, void *load_options); /* Run loaded UEFI image with given fdt */ efi_status_t efi_binary_run(void *image, size_t size, void *fdt); + +/** + * efi_bootflow_run() - Run a bootflow containing an EFI application + * + * @bootflow: Bootflow to run + * Return: Status code, something went wrong + */ +efi_status_t efi_bootflow_run(struct bootflow *bootflow); + /* Initialize variable services */ efi_status_t efi_init_variables(void); /* Notify ExitBootServices() is called */ diff --git a/lib/efi_loader/efi_bootbin.c b/lib/efi_loader/efi_bootbin.c index 8332993f421..b5d15a723b4 100644 --- a/lib/efi_loader/efi_bootbin.c +++ b/lib/efi_loader/efi_bootbin.c @@ -6,13 +6,16 @@
#define LOG_CATEGORY LOGC_EFI
+#include <bootflow.h> #include <charset.h> +#include <dm.h> #include <efi.h> #include <efi_loader.h> #include <env.h> #include <image.h> #include <log.h> #include <malloc.h> +#include <mapmem.h>
static struct efi_device_path *bootefi_image_path; static struct efi_device_path *bootefi_device_path; @@ -285,3 +288,71 @@ out: return ret; }
+/** + * calc_dev_name() - Calculate the device name to give to EFI + * + * If not supported, this shows an error. + * + * Return name, or NULL if not supported + */ +static const char *calc_dev_name(struct bootflow *bflow) +{ + const struct udevice *media_dev; + + media_dev = dev_get_parent(bflow->dev); + + if (!bflow->blk) { + log_err("Cannot boot EFI app on media '%s'\n", + dev_get_uclass_name(media_dev)); + + return NULL; + } + + if (device_get_uclass_id(media_dev) == UCLASS_MASS_STORAGE) + return "usb"; + + return blk_get_uclass_name(device_get_uclass_id(media_dev)); +} + +efi_status_t efi_bootflow_run(struct bootflow *bflow) +{ + struct efi_device_path *device, *image; + const struct udevice *media_dev; + struct blk_desc *desc = NULL; + const char *dev_name; + char devnum_str[9]; + efi_status_t ret; + void *fdt; + + media_dev = dev_get_parent(bflow->dev); + if (bflow->blk) { + desc = dev_get_uclass_plat(bflow->blk); + + snprintf(devnum_str, sizeof(devnum_str), "%x:%x", + desc ? desc->devnum : dev_seq(media_dev), bflow->part); + } else { + *devnum_str = '\0'; + } + + dev_name = calc_dev_name(bflow); + log_debug("dev_name '%s' devnum_str '%s' fname '%s' media_dev '%s'\n", + dev_name, devnum_str, bflow->fname, media_dev->name); + if (!dev_name) + return EFI_UNSUPPORTED; + ret = calculate_paths(dev_name, devnum_str, bflow->fname, &device, + &image); + if (ret) + return ret; + + if (bflow->flags & BOOTFLOWF_USE_BUILTIN_FDT) { + log_debug("Booting with built-in fdt\n"); + fdt = EFI_FDT_USE_INTERNAL; + } else { + log_debug("Booting with external fdt\n"); + fdt = map_sysmem(bflow->fdt_addr, 0); + } + ret = _efi_binary_run(bflow->buf, bflow->size, fdt, device, image); + + return ret; +} +