freebsd-nq/sys/i386
David Malone 93f39ea88a Some BIOSs are using MTRR values that are only documented under NDA
to control the mapping of things like the ACPI and APM into memory.

The problem is that starting X changes these values, so if something
was using the bits of BIOS mapped into memory (say ACPI or APM),
then next time they access this memory the machine would hang.

This patch refuse to change MTRR values it doesn't understand,
unless a new "force" option is given. This means X doesn't change
them by accident but someone can override that if they really want
to.

PR:		28418
Tested by:	Christopher Masto <chris@netmonger.net>,
		David Bushong <david@bushong.net>,
		Santos <casd@myrealbox.com>
MFC after:	1 week
2002-09-15 15:07:55 +00:00
..
acpica If we are using APIC_IO tell ACPI so it can route interrupts properly. 2002-09-06 17:02:01 +00:00
apm Remove __P. 2002-03-20 05:48:58 +00:00
bios Remove __P. 2002-03-20 05:48:58 +00:00
compile Don't need the .keep_me files. Obrien and I committed past each other. 2001-07-01 23:35:44 +00:00
conf Whitespace consistency fix from addition of IAHD_REG_PRETTY_PRINT: use 2002-09-11 16:51:48 +00:00
i386 Some BIOSs are using MTRR values that are only documented under NDA 2002-09-15 15:07:55 +00:00
ibcs2 - Fix iBCS2 emulation of COFF files that have multiple libraries 2002-09-09 15:51:10 +00:00
include Add a function pci_probe_route_table() that returns true if our PCI BIOS 2002-09-06 22:15:44 +00:00
isa Automatically enable CPU_ENABLE_SSE (detect and enable SSE instructions) 2002-09-07 07:02:12 +00:00
linux Completely redo thread states. 2002-09-11 08:13:56 +00:00
pci Make sure a $PIR table header has a valid length before accepting the table 2002-09-09 18:24:35 +00:00
svr4 Include <sys/systm.h> for the definition of offsetof() instead of depending 2002-09-05 13:08:22 +00:00
Makefile This commit adds basic support for the UFS2 filesystem. The UFS2 2002-06-21 06:18:05 +00:00