| /* SPDX-License-Identifier: GPL-2.0-only */ |
| |
| #include <arch/cpu.h> |
| #include <commonlib/helpers.h> |
| #include <console/console.h> |
| #include <mode_switch.h> |
| #include <program_loading.h> |
| #include <symbols.h> |
| #include <assert.h> |
| |
| int payload_arch_usable_ram_quirk(uint64_t start, uint64_t size) |
| { |
| if (start < 1 * MiB && (start + size) <= 1 * MiB) { |
| printk(BIOS_DEBUG, |
| "Payload being loaded at below 1MiB without region being marked as RAM usable.\n"); |
| return 1; |
| } |
| |
| return 0; |
| } |
| |
| void arch_prog_run(struct prog *prog) |
| { |
| #if ENV_RAMSTAGE && ENV_X86_64 |
| const uint32_t arg = pointer_to_uint32_safe(prog_entry_arg(prog)); |
| const uint32_t entry = pointer_to_uint32_safe(prog_entry(prog)); |
| |
| /* On x86 coreboot payloads expect to be called in protected mode */ |
| protected_mode_call_1arg((void *)(uintptr_t)entry, arg); |
| #else |
| #if ENV_X86_64 |
| void (*doit)(void *arg); |
| #else |
| /* Ensure the argument is pushed on the stack. */ |
| asmlinkage void (*doit)(void *arg); |
| #endif |
| doit = prog_entry(prog); |
| doit(prog_entry_arg(prog)); |
| #endif |
| } |