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ipmi: Add documentation

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Add some basic documentation for the IPMI device.

Signed-off-by: Corey Minyard <cminyard@mvista.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Corey Minyard 2015-12-17 12:50:10 -06:00 committed by Michael S. Tsirkin
parent 24f976d30a
commit f8490451ac
1 changed files with 52 additions and 0 deletions
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52
qemu-options.hx
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@ -382,6 +382,58 @@ Add device @var{driver}. @var{prop}=@var{value} sets driver
properties. Valid properties depend on the driver. To get help on
possible drivers and properties, use @code{-device help} and
@code{-device @var{driver},help}.
Some drivers are:
@item -device ipmi-bmc-sim,id=@var{id}[,slave_addr=@var{val}]
Add an IPMI BMC. This is a simulation of a hardware management
interface processor that normally sits on a system. It provides
a watchdog and the ability to reset and power control the system.
You need to connect this to an IPMI interface to make it useful
The IPMI slave address to use for the BMC. The default is 0x20.
This address is the BMC's address on the I2C network of management
controllers. If you don't know what this means, it is safe to ignore
it.
@item -device ipmi-bmc-extern,id=@var{id},chardev=@var{id}[,slave_addr=@var{val}]
Add a connection to an external IPMI BMC simulator. Instead of
locally emulating the BMC like the above item, instead connect
to an external entity that provides the IPMI services.
A connection is made to an external BMC simulator. If you do this, it
is strongly recommended that you use the "reconnect=" chardev option
to reconnect to the simulator if the connection is lost. Note that if
this is not used carefully, it can be a security issue, as the
interface has the ability to send resets, NMIs, and power off the VM.
It's best if QEMU makes a connection to an external simulator running
on a secure port on localhost, so neither the simulator nor QEMU is
exposed to any outside network.
See the "lanserv/README.vm" file in the OpenIPMI library for more
details on the external interface.
@item -device isa-ipmi-kcs,bmc=@var{id}[,ioport=@var{val}][,irq=@var{val}]
Add a KCS IPMI interafce on the ISA bus. This also adds a
corresponding ACPI and SMBIOS entries, if appropriate.
@table @option
@item bmc=@var{id}
The BMC to connect to, one of ipmi-bmc-sim or ipmi-bmc-extern above.
@item ioport=@var{val}
Define the I/O address of the interface. The default is 0xca0 for KCS.
@item irq=@var{val}
Define the interrupt to use. The default is 5. To disable interrupts,
set this to 0.
@end table
@item -device isa-ipmi-bt,bmc=@var{id}[,ioport=@var{val}][,irq=@var{val}]
Like the KCS interface, but defines a BT interface. The default port is
0xe4 and the default interrupt is 5.
ETEXI
DEF("name", HAS_ARG, QEMU_OPTION_name,