5209eaf9e5
Now that the stub code is unified, switch over to it, dropping the individual efi_main() functions. Series-to: concept Cover-letter: efi: Unify the scripts and start-up code We have two scripts which run QEMU, one for EFI and one for bare metal. They have similar options so it seems reasonable to try to unify them a bit. This series creates a common file and adjusts arguments so they are consistent across both scripts. The EFI app for ARM and x86 have different start-up code but in fact the code is quiet similar. This series creates a new common main program, called efi_main_common() which is used for both architectures. The small number of differences are handled in arch-specific code. END
77 lines
1.6 KiB
C
77 lines
1.6 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright (c) 2015 Google, Inc
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* Copyright (c) 2024 Linaro, Ltd.
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*
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* EFI information obtained here:
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* http://wiki.phoenix.com/wiki/index.php/EFI_BOOT_SERVICES
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*
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* Call ExitBootServices() and launch U-Boot from an EFI environment.
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*/
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#include <debug_uart.h>
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#include <efi.h>
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#include <efi_api.h>
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#include <efi_stub.h>
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#include <malloc.h>
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#include <asm/io.h>
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#include <linux/err.h>
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#include <linux/types.h>
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void _debug_uart_putc(int ch)
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{
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struct efi_priv *priv = efi_get_priv();
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if (ch == '\n')
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_debug_uart_putc('\r');
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/*
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* After calling EBS we can't log anywhere.
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* NOTE: for development it is possible to re-implement
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* your boards debug uart here like in efi_stub.c for x86.
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*/
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if (!use_hw_uart)
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efi_putc(priv, ch);
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}
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void _debug_uart_init(void) {}
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DEBUG_UART_FUNCS;
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void putc(const char ch)
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{
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_debug_uart_putc(ch);
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}
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void puts(const char *str)
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{
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while (*str)
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putc(*str++);
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}
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efi_status_t arch_efi_main_init(struct efi_priv *priv,
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struct efi_boot_services *boot)
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{
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phys_addr_t reloc_addr = ULONG_MAX;
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int ret;
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ret = boot->allocate_pages(EFI_ALLOCATE_MAX_ADDRESS, EFI_LOADER_CODE,
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(phys_addr_t)_binary_u_boot_bin_size / EFI_PAGE_SIZE,
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&reloc_addr);
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if (ret != EFI_SUCCESS) {
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puts("Failed to allocate memory for U-Boot: ");
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printhex2(ret);
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putc('\n');
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return ret;
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}
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priv->jump_addr = reloc_addr;
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return 0;
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}
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void arch_efi_jump_to_payload(struct efi_priv *priv)
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{
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typedef void (*func_t)(u64 x0, u64 x1, u64 x2, u64 x3);
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((func_t)priv->jump_addr)((phys_addr_t)priv->info, 0, 0, 0);
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}
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