John Baldwin 7157eae462 For no good reason I had assumed that ACPI table headers would be page ... aligned (or at least not cross a page boundary). However, it turns out that on at least one machine one table header does cross a page boundary. This caused problems with the MADT early probe as it uses the crash dump map to load ACPI tables by loading the RSDT/XSDT into pages 1 ... N and loading the header of each ACPI table header into page 0 looking for the MADT. However, if a table header crossed a page boundary, then page 1 would get trashed resulting in a panic. Fix this by reserving the first 2 pages for ACPI table headers (headers are less than a page in size, so 2 pages will be sufficient) and use pages 2 .. N for the RSDT and XSDT. Note: amd64 should probably be simplified to just use pmap_mapbios() for all these tables which will use the direct map and not need the crash dump hack. MFC after: 5 days Tested on: i386 Reported by: Pete French petefrench of ticketswitch.com		2008-01-31 16:51:43 +00:00
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acpica	For no good reason I had assumed that ACPI table headers would be page	2008-01-31 16:51:43 +00:00
amd64	Add a wrapper function that bound checks writes to the dump device.	2008-01-28 19:04:07 +00:00
compile
conf	Add COMPAT_FREEBSD7 and enable it in configs that have COMPAT_FREEBSD6.	2008-01-07 21:40:11 +00:00
ia32	Optimize vmmeter locking.	2007-06-10 21:59:14 +00:00
include	Move GET_STACK_USAGE from MI header to i386/amd64 MD ones.	2008-01-31 08:24:27 +00:00
isa	Use cpu_spinwait() (i.e., "pause") when spinning on rdtsc during DELAY().	2008-01-17 18:59:38 +00:00
linux32	Fill in cr2 in the signal context from ksi->ksi_addr.	2007-09-20 13:46:26 +00:00
pci	Adjust the code to probe for the PCI config mechanism to use.	2007-11-28 22:20:08 +00:00
Makefile