On 12/09/2010 02:32 PM, Matthew Garrett wrote:
On Thu, Dec 09, 2010 at 02:25:05PM -0800, H. Peter Anvin wrote:
On 12/09/2010 01:46 PM, Matthew Garrett wrote:
Windows reboots by hitting the ACPI reboot vector (if available), trying
the keyboard controller, hitting the ACPI reboot vector again and then
giving the keyboard controller one last go. Rework our reboot process a
little to default to matching this behaviour, although we'll fall through
to attempting a triple fault if nothing else works.
Signed-off-by: Matthew Garrett<mjg@xxxxxxxxxx>
When this was discussed before we agreed to use ACPI reboot by default
with an ACPI cutoff date; this doesn't have any such cutoff.
Windows doesn't either. Older machines simply won't have the appropriate
flag set in their FADT.
Windows doesn't get validated on old hardware.
-hpa
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