Konstantin Belousov 34c15db9cd Add config option PAE_TABLES for the i386 kernel. It switches pmap to ... use PAE format for the page tables, but does not incur other consequences of the full PAE config. In particular, vm_paddr_t and bus_addr_t are left 32bit, and max supported memory is still limited by 4GB. The option allows to have nx permissions for memory mappings on i386 kernel, while keeping the usual i386 KBI and avoiding the kernel data sizing problems typical for the PAE config. Intel documented that the PAE format for page tables is available starting with the Pentium Pro, but it is possible that the plain Pentium CPUs have the required support (Appendix H). The goal is to enable the option and non-exec mappings on i386 for the GENERIC kernel. Anybody wanting a useful system on 486, have to reconfigure the modern i386 kernel anyway. Discussed with: alc, jhb Sponsored by: The FreeBSD Foundation MFC after: 2 weeks		2015-04-13 15:22:45 +00:00
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acpica	Correct a comment brought over from amd64. i386 doesn't use long	2014-08-12 18:22:57 +00:00
bios	Pull in r267961 and r267973 again. Fix for issues reported will follow.	2014-06-28 03:56:17 +00:00
conf	Apply r276208 to non-amd64 NOTES files as well to fix tinderbox builds	2015-03-25 15:51:41 +00:00
i386	Add config option PAE_TABLES for the i386 kernel. It switches pmap to	2015-04-13 15:22:45 +00:00
ibcs2	Remove the no-at variants of the kern_xx() syscall helpers. E.g., we	2014-11-13 18:01:51 +00:00
include	Add config option PAE_TABLES for the i386 kernel. It switches pmap to	2015-04-13 15:22:45 +00:00
isa	Remove write-only variable.	2015-03-12 20:14:48 +00:00
linux	Regen after r276508, r276509.	2015-01-01 18:43:31 +00:00
pci	Pull in r267961 and r267973 again. Fix for issues reported will follow.	2014-06-28 03:56:17 +00:00
svr4	MFamd64: Move extern declaration of _ucodesel and _udatasel to	2014-11-02 21:40:32 +00:00
xbox	After r261980, the local ptr variable in xbox_init() is no longer used,	2014-02-16 22:48:36 +00:00
xen	Generalized parts of the XEN timer code into a generic pvclock	2015-02-04 08:26:43 +00:00
Makefile	Delete duplicate tags entry I introduced in -r223901.	2011-07-15 17:27:26 +00:00