src/lib/libkvm, branch releng/9.1

MFC r235286:

2012-05-18T00:31:20+00:00

General mdoc(7) and typo fixes.

PR:		167734

MFC r230873:

2012-02-12T07:52:14+00:00

Try to avoid ambiguity when sysctl returns ENOMEM additionally
checking the returned oldlen: when ENOMEM is due to the supplied
buffer being too short the return oldlen is equal to buffer size.

Without this additional check kvm_getprocs() gets stuck in loop if the
returned ENOMEM was due the exceeded memorylocked limit. This is
easily can be observed running `limits -l 1k top'.

Submitted by:	Andrey Zonov

MFC r227839, r230146:

2012-01-30T19:32:33+00:00

r227839:

Now kvm_getenvv() and kvm_getargv() don't need procfs(5).

r230146:

In kvm_argv(), the case when the supplied buffer was too short to hold the
requested value was handled incorrectly, and the function retuned NULL
instead of the truncated result.

Fix this and also remove unnecessary check for buf != NULL, which alway
retuns true.

Add support for PBVM addresses. In a nutshell this means:

2011-08-06T15:59:54+00:00

o   get the physical address and size of the PBVM page table. This
    can be found in the bootinfo structure, of which the physical
    address is recorded as the ELF entry point.
o   translate region 4 virtual addresses to physical addresses using
    the PBVM page table.

In _kvm_kvatop() make the distinction between physical address and
core file offset a little clearer to avoid confusion. To further
enhance readability, always store the translated address into pa
so that it's obvious how the translation from va to pa happened.

Approved by:	re (blanket)

Rename ki_ocomm to ki_tdname and OCOMMLEN to TDNAMLEN.

2011-07-18T20:06:15+00:00

Provide backward compatibility defines under BURN_BRIDGES.

Suggested by:	jhb
Reviewed by:	emaste
Sponsored by:	Sandvine Incorporated
Approved by:	re (kib)

Completely remove now unused pc_other_cpus, pc_cpumask.

2011-07-04T10:45:54+00:00

Tested by:	pluknet

Revert r222363, as bde@ pointed out the initial solution was far more

2011-05-31T20:59:53+00:00

correct.

Style fix: cast to size_t rather than u_long when comparing to sizeof()

2011-05-27T16:01:51+00:00

rets.

Requested by:	kib

In the near future cpuset_t objects in struct pcpu will be axed out, but

2011-05-27T15:50:14+00:00

as long as this does not happen, we need to fix interfaces to userland
in order to not break run-time accesses to the structure.

Reviwed by:	kib
Tested by:	pluknet

Disconnect sun4v architecture from the three.

2011-05-14T01:53:38+00:00

Some files keep the SUN4V tags as a code reference, for the future,
if any rewamped sun4v support wants to be added again.

Reviewed by:	marius
Tested by:	sbruno
Approved by:	re