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-rw-r--r--usr.sbin/bhyve/bhyve.828
1 files changed, 22 insertions, 6 deletions
diff --git a/usr.sbin/bhyve/bhyve.8 b/usr.sbin/bhyve/bhyve.8
index ee0f2ca..c5de82a 100644
--- a/usr.sbin/bhyve/bhyve.8
+++ b/usr.sbin/bhyve/bhyve.8
@@ -32,7 +32,7 @@
.Nd "run a guest operating system inside a virtual machine"
.Sh SYNOPSIS
.Nm
-.Op Fl abehuwxACHPWY
+.Op Fl abehuwxACHPSWY
.Op Fl c Ar numcpus
.Op Fl g Ar gdbport
.Op Fl l Ar lpcdev Ns Op , Ns Ar conf
@@ -99,10 +99,12 @@ Yield the virtual CPU thread when a HLT instruction is detected.
If this option is not specified, virtual CPUs will use 100% of a host CPU.
.It Fl l Ar lpcdev Ns Op , Ns Ar conf
Allow devices behind the LPC PCI-ISA bridge to be configured.
-The only supported devices are the TTY-class devices,
-.Li com1
+The only supported devices are the TTY-class devices
+.Ar com1
and
-.Li com2 .
+.Ar com2
+and the boot ROM device
+.Ar bootrom .
.It Fl m Ar size Ns Op Ar K|k|M|m|G|g|T|t
Guest physical memory size in bytes.
This must be the same size that was given to
@@ -165,8 +167,8 @@ AHCI controller attached to a SATA hard-drive.
.It Li uart
PCI 16550 serial device.
.It Li lpc
-LPC PCI-ISA bridge with COM1 and COM2 16550 serial ports. The LPC bridge
-emulation can only be configured on bus 0.
+LPC PCI-ISA bridge with COM1 and COM2 16550 serial ports and a boot ROM.
+The LPC bridge emulation can only be configured on bus 0.
.El
.It Op Ar conf
This optional parameter describes the backend for device emulations.
@@ -224,6 +226,14 @@ the bhyve process.
Use the host TTY device for serial port I/O.
.El
.Pp
+Boot ROM device:
+.Bl -tag -width 10n
+.It Pa romfile
+Map
+.Ar romfile
+in the guest address space reserved for boot firmware.
+.El
+.Pp
Pass-through devices:
.Bl -tag -width 10n
.It Ns Ar slot Ns / Ns Ar bus Ns / Ns Ar function
@@ -235,11 +245,17 @@ and
numbers.
.El
.Pp
+Guest memory must be wired using the
+.Fl S
+option when a pass-through device is configured.
+.Pp
The host device must have been reserved at boot-time using the
.Va pptdev
loader variable as described in
.Xr vmm 4 .
.El
+.It Fl S
+Wire guest memory.
.It Fl u
RTC keeps UTC time.
.It Fl U Ar uuid
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