Konstantin Belousov f76b5ab6cc Fix resume on i386 PAE. ... It was broken before PAE/no-PAE merge, but since now PAE is the default, resume is apparently becomes for all machines. The corrected issues: - the trampoline page is not mapped executable, so machine faults when paging is on; - MSR.EFER and %cr4 both should be loaded before paging is enabled, otherwise paging structures are invalid (cr4.PAE and EFER.NX). - MSR.EFER and %cr4 should be only loaded if present. I attempt to handle this by not touching the registers if the value is zero. There are some more bits still not quite correct, e.g. unconditional access to %cr4 in resumectx. Reported and debugging help by: bde Sponsored by: The FreeBSD Foundation MFC after: 1 week		2019-02-07 02:09:34 +00:00
..
acpi_machdep.c	i386: Merge PAE and non-PAE pmaps into same kernel.	2019-01-30 02:07:13 +00:00
acpi_wakecode.S	Fix resume on i386 PAE.	2019-02-07 02:09:34 +00:00