Nathan Whitehorn ae09ab8f63 Rework SLB trap handling so that double-faults into an SLB trap handler are ...

possible, and double faults within an SLB trap handler are not. The result
is that it possible to take an SLB fault at any time, on any address, for
any reason, at any point in the kernel.

This lets us do two important things. First, it removes the (soft) 16 GB RAM
ceiling on PPC64 as well as any architectural limitations on KVA space.
Second, it lets the kernel tolerate poorly designed hypervisors that
have a tendency to fail to restore the SLB properly after a hypervisor
context switch.

MFC after:	6 weeks

2012-01-15 00:08:14 +00:00

..

clock.c

After some off-list discussion, revert a number of changes to the

2010-11-22 19:32:54 +00:00

copyinout.c

Use the ABI-mandated thread pointer register (r2 for ppc32, r13 for ppc64)

2011-06-23 22:21:28 +00:00

interrupt.c

Remove some dead code: unnecessary isyncs and memory sorting, which are

2011-06-02 14:15:44 +00:00

locore32.S

Zero BSS on start, in case the ELF loader that started the kernel did not

2011-12-16 23:40:56 +00:00

locore64.S

On 64 bit architectures size_t is 8 bytes, thus it should use an 8 bytes

2011-07-19 12:41:57 +00:00

locore.S

MFppc64:

2010-07-13 05:32:19 +00:00

machdep.c

Rework SLB trap handling so that double-faults into an SLB trap handler are

2012-01-15 00:08:14 +00:00

mmu_oea64.c

Eliminate vestiges of page coloring.

2011-12-15 05:07:16 +00:00

mmu_oea64.h

Add an abstraction layer to the 64-bit AIM MMU's page table manipulation

2010-12-04 02:42:52 +00:00

mmu_oea.c

Allow this to work on embedded systems without Open Firmware by making

2011-12-16 23:46:05 +00:00

moea64_if.m

Add an abstraction layer to the 64-bit AIM MMU's page table manipulation

2010-12-04 02:42:52 +00:00

moea64_native.c

Remove some dead code: unnecessary isyncs and memory sorting, which are

2011-06-02 14:15:44 +00:00

mp_cpudep.c

Use a global __pure2 function instead of a global register variable for

2011-11-17 15:49:42 +00:00

nexus.c

- There's no need to overwrite the default device method with the default

2011-11-22 21:28:20 +00:00

slb.c

Rework SLB trap handling so that double-faults into an SLB trap handler are

2012-01-15 00:08:14 +00:00

swtch32.S

Use the ABI-mandated thread pointer register (r2 for ppc32, r13 for ppc64)

2011-06-23 22:21:28 +00:00

swtch64.S

Use the ABI-mandated thread pointer register (r2 for ppc32, r13 for ppc64)

2011-06-23 22:21:28 +00:00

trap_subr32.S

Fix a bug where the pmap_cpu_bootstrap() ap argument could be clobbered.

2011-11-09 13:48:23 +00:00

trap_subr64.S

Rework SLB trap handling so that double-faults into an SLB trap handler are

2012-01-15 00:08:14 +00:00

trap.c

Rework SLB trap handling so that double-faults into an SLB trap handler are

2012-01-15 00:08:14 +00:00

uma_machdep.c

Eliminate vestiges of page coloring.

2011-12-15 05:07:16 +00:00

vm_machdep.c

For architectures not using direct map , and requiring real KVA page for

2011-01-18 21:57:02 +00:00