linux(4): Implement F_GETPIPE_SZ.
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	.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)			.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT			.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
	.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY			.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
	.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF			.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	.\" SUCH DAMAGE.			.\" SUCH DAMAGE.
	.\"			.\"
	.\" $FreeBSD$			.\" $FreeBSD$
	.\"			.\"
	.Dd July 9, 2016			.Dd February 27, 2017
	.Dt BHYVE 8			.Dt BHYVE 8
	.Os			.Os
	.Sh NAME			.Sh NAME
	.Nm bhyve			.Nm bhyve
	.Nd "run a guest operating system inside a virtual machine"			.Nd "run a guest operating system inside a virtual machine"
	.Sh SYNOPSIS			.Sh SYNOPSIS
	.Nm			.Nm
	.Op Fl abehuwxACHPSWY			.Op Fl abehuwxACHPSWY
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	.It Li passthru			.It Li passthru
	PCI pass-through device.			PCI pass-through device.
	.It Li virtio-net			.It Li virtio-net
	Virtio network interface.			Virtio network interface.
	.It Li virtio-blk			.It Li virtio-blk
	Virtio block storage interface.			Virtio block storage interface.
	.It Li virtio-rnd			.It Li virtio-rnd
	Virtio RNG interface.			Virtio RNG interface.
				.It Li virtio-console
				Virtio console interface, which exposes multiple ports
				to the guest in the form of simple char devices for simple IO
				between the guest and host userspaces.
	.It Li ahci			.It Li ahci
	AHCI controller attached to arbitrary devices.			AHCI controller attached to arbitrary devices.
	.It Li ahci-cd			.It Li ahci-cd
	AHCI controller attached to an ATAPI CD/DVD.			AHCI controller attached to an ATAPI CD/DVD.
	.It Li ahci-hd			.It Li ahci-hd
	AHCI controller attached to a SATA hard-drive.			AHCI controller attached to a SATA hard-drive.
	.It Li e1000			.It Li e1000
	Intel e82545 network interface.			Intel e82545 network interface.
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	Guest memory must be wired using the			Guest memory must be wired using the
	.Fl S			.Fl S
	option when a pass-through device is configured.			option when a pass-through device is configured.
	.Pp			.Pp
	The host device must have been reserved at boot-time using the			The host device must have been reserved at boot-time using the
	.Va pptdev			.Va pptdev
	loader variable as described in			loader variable as described in
	.Xr vmm 4 .			.Xr vmm 4 .
				.Pp
				Virtio console devices:
				.Bl -tag -width 10n
				.It Li port1= Ns Pa /path/to/port1.sock Ns ,anotherport= Ns Pa ...
				A maximum of 16 ports per device can be created.
				Every port is named and corresponds to a Unix domain socket created by
				.Nm .
				.Nm
				accepts at most one connection per port at a time.
				.Pp
				Limitations:
				.Bl -bullet -offset 2n
				.It
				Due to lack of destructors in
				.Nm ,
				sockets on the filesystem must be cleaned up manually after
				.Nm
				exits.
				.It
				There is no way to use the "console port" feature, nor the console port
				resize as of now.
				wblockUnsubmitted Not Done Inline Actions Recommend "at present" rather than "as of now". wblock: Recommend "at present" rather than "as of now".
				novelAuthorUnsubmitted Not Done Inline Actions Does that sound like a check for igor(1)? As this bhyve.8 patch is committed already, do you think it's worth to create a follow up patch to fix that? novel: Does that sound like a check for igor(1)? As this bhyve.8 patch is committed already, do you…
				wblockUnsubmitted Not Done Inline Actions Hm. It could go in the rarely-used style suggestions (-y). I'll look at that. I'd say no second patch is needed for this trivial change, and even .Dd does not need a bump. You can do that, or I can if you like. Thanks! wblock: Hm. It could go in the rarely-used style suggestions (-y). I'll look at that. I'd say no…
				novelAuthorUnsubmitted Not Done Inline Actions Thanks, I've just committed that. novel: Thanks, I've just committed that.
				.It
				Emergency write is advertised, but no-op as of now.
				wblockUnsubmitted Not Done Inline Actions Likewise, "at present" is simpler and clearer. wblock: Likewise, "at present" is simpler and clearer.
				.El
				.El
	.El			.El
	.It Fl S			.It Fl S
	Wire guest memory.			Wire guest memory.
	.It Fl u			.It Fl u
	RTC keeps UTC time.			RTC keeps UTC time.
	.It Fl U Ar uuid			.It Fl U Ar uuid
	Set the universally unique identifier			Set the universally unique identifier
	.Pq UUID			.Pq UUID
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sys/compat/linux/linux_file.c

linux(4): Implement F_GETPIPE_SZ.
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