1 // SPDX-License-Identifier: GPL-2.0+
8  * This file implements U-Boot running as an EFI application.
27 	return global_priv->sys_table;  in efi_get_sys_table()
32 	return global_priv->ram_base;  in efi_get_ram_base()
37 	struct efi_boot_services *boot = priv->boot;  in setup_memory()  local
44 	 * are very few assignments to global_data in U-Boot and this makes  in setup_memory()
52 	gd->malloc_base = (ulong)efi_malloc(priv, CONFIG_VAL(SYS_MALLOC_F_LEN),  in setup_memory()
54 	if (!gd->malloc_base)  in setup_memory()
59 	 * Don't allocate any memory above 4GB. U-Boot is a 32-bit application  in setup_memory()
63 	ret = boot->allocate_pages(EFI_ALLOCATE_MAX_ADDRESS,  in setup_memory()
64 				   priv->image_data_type, pages, &addr);  in setup_memory()
67 		priv->ram_base = (ulong)efi_malloc(priv, CONFIG_EFI_RAM_SIZE,  in setup_memory()
69 		if (!priv->ram_base)  in setup_memory()
71 		priv->use_pool_for_malloc = true;  in setup_memory()
73 		priv->ram_base = addr;  in setup_memory()
75 	gd->ram_size = pages << 12;  in setup_memory()
82 	struct efi_boot_services *boot = priv->boot;  in free_memory()  local
84 	if (priv->use_pool_for_malloc)  in free_memory()
85 		efi_free(priv, (void *)priv->ram_base);  in free_memory()
87 		boot->free_pages(priv->ram_base, gd->ram_size >> 12);  in free_memory()
89 	efi_free(priv, (void *)gd->malloc_base);  in free_memory()
95  * efi_main() - Start an EFI image
97  * This function is called by our EFI start-up code. It handles running
98  * U-Boot. If it returns, EFI will continue. Another way to get back to EFI
107 	/* Set up access to EFI data structures */  in efi_main()
113 	 * Set up the EFI debug UART so that printf() works. This is  in efi_main()
121 		printf("Failed to set up memory: ret=%lx\n", ret);  in efi_main()
139 	printf("U-Boot EFI exiting\n");  in efi_exit()
140 	priv->boot->exit(priv->parent_image, EFI_SUCCESS, 0, NULL);  in efi_exit()
147 	return -EINPROGRESS;  in efi_sysreset_request()
160 	.name = "efi-sysreset",