| #include <asm/trampoline.h> |
| #if defined(CONFIG_X86_64) && defined(CONFIG_ACPI_SLEEP) |
| #define __trampinit __cpuinit |
| #define __trampinitdata __cpuinitdata |
| /* ready for x86_64 and x86 */ |
| unsigned char *__trampinitdata trampoline_base; |
| void __init reserve_trampoline_memory(void) |
| /* Has to be in very low memory so we can execute real-mode AP code. */ |
| mem = find_e820_area(0, 1<<20, TRAMPOLINE_SIZE, PAGE_SIZE); |
| panic("Cannot allocate trampoline\n"); |
| trampoline_base = __va(mem); |
| reserve_early(mem, mem + TRAMPOLINE_SIZE, "TRAMPOLINE"); |
| * Currently trivial. Write the real->protected mode |
| * bootstrap into the page concerned. The caller |
| * has made sure it's suitably aligned. |
| unsigned long __trampinit setup_trampoline(void) |
| memcpy(trampoline_base, trampoline_data, TRAMPOLINE_SIZE); |
| return virt_to_phys(trampoline_base); |