bios__nap_8c_source.html

#include <ipxe/nap.h>

#include <realmode.h>


FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );


/**

 * Save power by halting the CPU until the next interrupt

 *

 */


static void bios_cpu_nap ( void ) {

        __asm__ __volatile__ ( "sti\n\t"

                               "hlt\n\t"

                               "cli\n\t" );

}


PROVIDE_NAP ( pcbios, cpu_nap, bios_cpu_nap );

__volatile__
__asm__ __volatile__("call *%9" :"=a"(result), "=c"(discard_ecx), "=d"(discard_edx) :"d"(0), "a"(code), "b"(0), "c"(in_phys), "D"(0), "S"(out_phys), "m"(hypercall))

bios_cpu_nap
static void bios_cpu_nap(void)
Save power by halting the CPU until the next interrupt.
Definition bios_nap.c:10

FILE_LICENCE
#define FILE_LICENCE(_licence)
Declare a particular licence as applying to a file.
Definition compiler.h:896

nap.h
CPU sleeping.

cpu_nap
void cpu_nap(void)
Sleep with interrupts enabled until next CPU interrupt.

PROVIDE_NAP
#define PROVIDE_NAP(_subsys, _api_func, _func)
Provide an CPU sleeping API implementation.
Definition nap.h:33

__asm__
__asm__(".section \".rodata\", \"a\", " PROGBITS "\n\t" "\nprivate_key_data:\n\t" ".size private_key_data, ( . - private_key_data )\n\t" ".equ private_key_len, ( . - private_key_data )\n\t" ".previous\n\t")

realmode.h