freebsd-skq/sys/i386
Colin Percival 698cc19d6b Make i386_set_ldt work on i386/XEN, step 4/5.
Use xen_update_descriptor to update the LDT rather than bcopy.  Under Xen,
pages used for holding LDTs must be read-only, so we can't make the change
ourselves.

Ths obvious alternative of "remap the page read-write, make the change, then
map it read-only again" doesn't work since Xen won't allow an LDT page to be
remapped as R/W.  An arguably better solution is used by NetBSD: They don't
modify LDTs in-place at all, but instead copy the entire LDT, modify the new
version, then atomically swap.

MFC after:	3 days
2010-12-31 17:41:14 +00:00
..
acpica MFamd64: (based on) r209957 2010-11-12 20:55:14 +00:00
bios Add compat shim for apm(4) to translate APM BIOS function numbers from i386 2010-11-11 19:20:33 +00:00
compile
conf Add driver for DM&P Vortex86 RDC R6040 Fast Ethernet. 2010-12-31 00:21:41 +00:00
i386 Make i386_set_ldt work on i386/XEN, step 4/5. 2010-12-31 17:41:14 +00:00
ibcs2 Add macro DECLARE_MODULE_TIED to denote a module as requiring the 2010-10-12 09:18:17 +00:00
include Make i386_set_ldt work on i386/XEN, step 2/5. 2010-12-31 17:39:58 +00:00
isa In fpudna()/npxdna(), mark FPU context initialized and optionally 2010-12-12 16:16:39 +00:00
linux Add macro DECLARE_MODULE_TIED to denote a module as requiring the 2010-10-12 09:18:17 +00:00
pci Add device IDs for two more ServerWorks Host-PCI bridges so that we can 2010-11-25 15:42:33 +00:00
svr4
xbox Update d_mmap() to accept vm_ooffset_t and vm_memattr_t. 2009-12-29 21:51:28 +00:00
xen Make i386_set_ldt work on i386/XEN, step 1/5. 2010-12-31 17:39:31 +00:00
Makefile