Differential D18894 Diff 52999 sys/x86/acpica/acpi_wakeup.c

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sys/x86/acpica/acpi_wakeup.c

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#ifdef __i386__		#ifdef __i386__
/*		/*
* Remove the identity mapping of low memory for all CPUs and sync		* Remove the identity mapping of low memory for all CPUs and sync
* the TLB for the BSP. The APs are now spinning in		* the TLB for the BSP. The APs are now spinning in
* cpususpend_handler() and we will release them soon. Then each		* cpususpend_handler() and we will release them soon. Then each
* will invalidate its TLB.		* will invalidate its TLB.
*/		*/
PTD[KPTDI] = 0;		pmap_remap_lowptdi(false);
invltlb_glob();
#endif		#endif

/* restore the warmstart vector */		/* restore the warmstart vector */
(uint32_t )WARMBOOT_OFF = mpbioswarmvec;		(uint32_t )WARMBOOT_OFF = mpbioswarmvec;

outb(CMOS_REG, BIOS_RESET);		outb(CMOS_REG, BIOS_RESET);
outb(CMOS_DATA, mpbiosreason);		outb(CMOS_DATA, mpbiosreason);
}		}
▲ Show 20 Lines • Show All 65 Lines • ▼ Show 20 Lines	#ifdef __i386__
* Map some low memory with virt == phys for ACPI wakecode		* Map some low memory with virt == phys for ACPI wakecode
* to use to jump to high memory after enabling paging. This		* to use to jump to high memory after enabling paging. This
* is the same as for similar jump in locore, except the		* is the same as for similar jump in locore, except the
* jump is a single instruction, and we know its address		* jump is a single instruction, and we know its address
* more precisely so only need a single PTD, and we have to		* more precisely so only need a single PTD, and we have to
* be careful to use the kernel map (PTD[0] is for curthread		* be careful to use the kernel map (PTD[0] is for curthread
* which may be a user thread in deprecated APIs).		* which may be a user thread in deprecated APIs).
*/		*/
PTD[KPTDI] = PTD[LOWPTDI];		pmap_remap_lowptdi(true);
#endif		#endif

/* Call ACPICA to enter the desired sleep state */		/* Call ACPICA to enter the desired sleep state */
if (state == ACPI_STATE_S4 && sc->acpi_s4bios)		if (state == ACPI_STATE_S4 && sc->acpi_s4bios)
status = AcpiEnterSleepStateS4bios();		status = AcpiEnterSleepStateS4bios();
else		else
status = AcpiEnterSleepState(state);		status = AcpiEnterSleepState(state);
if (ACPI_FAILURE(status)) {		if (ACPI_FAILURE(status)) {
▲ Show 20 Lines • Show All 155 Lines • ▼ Show 20 Lines	#ifdef __amd64__
WAKECODE_FIXUP((wakeup_sw64 + 1), uint32_t,		WAKECODE_FIXUP((wakeup_sw64 + 1), uint32_t,
sc->acpi_wakephys + wakeup_64);		sc->acpi_wakephys + wakeup_64);
WAKECODE_FIXUP(wakeup_pagetables, uint32_t, pt4pa);		WAKECODE_FIXUP(wakeup_pagetables, uint32_t, pt4pa);
#endif		#endif

/* Save pointers to some global data. */		/* Save pointers to some global data. */
WAKECODE_FIXUP(wakeup_ret, void *, resumectx);		WAKECODE_FIXUP(wakeup_ret, void *, resumectx);
#ifndef __amd64__		#ifndef __amd64__
#if defined(PAE) \|\| defined(PAE_TABLES)		WAKECODE_FIXUP(wakeup_cr3, register_t, pmap_get_kcr3());
WAKECODE_FIXUP(wakeup_cr3, register_t, vtophys(kernel_pmap->pm_pdpt));
#else
WAKECODE_FIXUP(wakeup_cr3, register_t, vtophys(kernel_pmap->pm_pdir));
#endif

#else /* __amd64__ */		#else /* __amd64__ */
/* Create the initial 1GB replicated page tables */		/* Create the initial 1GB replicated page tables */
for (i = 0; i < 512; i++) {		for (i = 0; i < 512; i++) {
/*		/*
* Each slot of the level 4 pages points		* Each slot of the level 4 pages points
* to the same level 3 page		* to the same level 3 page
*/		*/
pt4[i] = (uint64_t)pt3pa;		pt4[i] = (uint64_t)pt3pa;
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