Merge head

IFC @264767

MFH: tracking commit

Sponsored by: The FreeBSD Foundation

Merge head up to r262222 (last merge was incomplete).

MFC @ r259205 in preparation for some SVM updates. (for real this time)

MFH@261240.

o Fix typo, sort .Xrs.

PR: docs/186191
Submitted by: Andrew (typo fix)
MFC after: 1 week

mdoc: quote string properly.

Allow bhyve and bhyveload to attach to tty devices.

bhyveload: introduce the -c <device> parameter
to select a tty for output (or "stdio")

bhyve: allow the puc and lpc-com backends to
accept a tt

Allow bhyve and bhyveload to attach to tty devices.

bhyveload: introduce the -c <device> parameter
to select a tty for output (or "stdio")

bhyve: allow the puc and lpc-com backends to
accept a tty in addition to "stdio"

When used in conjunction with the null-modem device,
nmdm(4), this allows attach/detach to the guest console
and multiple concurrent serial ports. kgdb on a serial
port is now functional.

Reviewed by: neel
Requested by: Almost everyone that has used bhyve
MFC after: 10.0

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Merge head r233826 through r256722.

Add an option to bhyveload(8) that allows setting a loader environment variable
from the command line.

The option syntax is "-e <name=value>". It may be used multiple times to set
multiple environme

Add an option to bhyveload(8) that allows setting a loader environment variable
from the command line.

The option syntax is "-e <name=value>". It may be used multiple times to set
multiple environment variables.

Reviewed by: grehan
Requested by: alfred

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Merge head@256284

IFC @256277

Approved by: ken (mentor)

MFC - tracking commit.

Fix missing .

Approved by: re (blanket)

MFC - tracking commit

Parse the memory size parameter using expand_number() to allow specifying
the memory size more intuitively (e.g. 512M, 4G etc).

Submitted by: rodrigc
Reviewed by: grehan
Approved by: re (blanket)

IFC @253398

Merge fresh head.

sync from head

MFC @248493

mdoc: remove superfluous paragraph macro.

Simplify the assignment of memory to virtual machines by requiring a single
command line option "-m <memsize in MB>" to specify the memory size.

Prior to this change the user needed to explicitly sp

Simplify the assignment of memory to virtual machines by requiring a single
command line option "-m <memsize in MB>" to specify the memory size.

Prior to this change the user needed to explicitly specify the amount of
memory allocated below 4G (-m <lowmem>) and the amount above 4G (-M <highmem>).

The "-M" option is no longer supported by 'bhyveload' and 'bhyve'.

The start of the PCI hole is fixed at 3GB and cannot be directly changed
using command line options. However it is still possible to change this in
special circumstances via the 'vm_set_lowmem_limit()' API provided by
libvmmapi.

Submitted by: Dinakar Medavaram (initial version)
Reviewed by: grehan
Obtained from: NetApp

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IFC @247348.

Sync with HEAD.