linux/arch/x86/pci
H. Peter Anvin 14d7ca5c57 x86: attempt reboot via port CF9 if we have standard PCI ports
Impact: Changes reboot behavior.

If port CF9 seems to be safe to touch, attempt it before trying the
keyboard controller.  Port CF9 is not available on all chipsets (a
significant but decreasing number of modern chipsets don't implement
it), but port CF9 itself should in general be safe to poke (no ill
effects if unimplemented) on any system which has PCI Configuration
Method #1 or #2, as it falls inside the PCI configuration port range
in both cases.  No chipset without PCI is known to have port CF9,
either, although an explicit "pci=bios" would mean we miss this and
therefore don't use port CF9.  An explicit "reboot=pci" can be used to
force the use of port CF9.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2008-11-11 16:19:48 -08:00
..
acpi.c
amd_bus.c x86: cleanup in amd_cpu_notify() 2008-08-25 11:11:59 +02:00
common.c
direct.c x86: attempt reboot via port CF9 if we have standard PCI ports 2008-11-11 16:19:48 -08:00
early.c
fixup.c x86, hpet: SB600 - remove HPET resources from PCI device 2008-09-14 18:24:38 +02:00
i386.c x86: split e820 reserved entries record to late v4 2008-09-04 08:39:25 -07:00
init.c
irq.c x86/PCI: irq and pci_ids patch for Intel Ibex Peak DeviceIDs 2008-10-20 10:53:48 -07:00
legacy.c
Makefile
mmconfig_32.c
mmconfig_64.c
mmconfig-shared.c x86: unify using pci_mmcfg_insert_resource 2008-09-04 21:04:32 +02:00
numaq_32.c
olpc.c
pcbios.c
pci.h x86: attempt reboot via port CF9 if we have standard PCI ports 2008-11-11 16:19:48 -08:00
visws.c