C++ (Cpp) pmap_unmap_page_zeroの例

コード例 #1

ファイル: model_dep.c プロジェクト: sebastianscatularo/gnumach

/*
 * Find devices.  The system is alive.
 */
void machine_init(void)
{
	/*
	 * Initialize the console.
	 */
	cninit();

	/*
	 * Set up to use floating point.
	 */
	init_fpu();

#ifdef MACH_HYP
	hyp_init();
#else	/* MACH_HYP */
#ifdef LINUX_DEV
	/*
	 * Initialize Linux drivers.
	 */
	linux_init();
#endif

	/*
	 * Find the devices
	 */
	probeio();
#endif	/* MACH_HYP */

	/*
	 * Get the time
	 */
	inittodr();

#ifndef MACH_HYP
	/*
	 * Tell the BIOS not to clear and test memory.
	 */
	*(unsigned short *)phystokv(0x472) = 0x1234;
#endif	/* MACH_HYP */

#if VM_MIN_KERNEL_ADDRESS == 0
	/*
	 * Unmap page 0 to trap NULL references.
	 *
	 * Note that this breaks accessing some BIOS areas stored there.
	 */
	pmap_unmap_page_zero();
#endif
}

コード例 #2

ファイル: model_dep.c プロジェクト: openmach/openmach

/*
 * Find devices.  The system is alive.
 */
void machine_init()
{
	/*
	 * Initialize the console.
	 */
	cninit();

	/*
	 * Set up to use floating point.
	 */
	init_fpu();

#ifdef LINUX_DEV
	/*
	 * Initialize Linux drivers.
	 */
	linux_init();
#endif

	/*
	 * Find the devices
	 */
	probeio();

	/*
	 * Get the time
	 */
	inittodr();

	/*
	 * Tell the BIOS not to clear and test memory.
	 */
	*(unsigned short *)phystokv(0x472) = 0x1234;

	/*
	 * Unmap page 0 to trap NULL references.
	 */
	pmap_unmap_page_zero();
}