Belkin XM Commander Manuale Utente Scaricare il pdf (Pagina 44)

watchdog Enable NMI watchdog which can report certain failures.

noirqbalance Disable software IRQ balancing and afﬁnity. This can be used on sys-

tems such as Dell 1850/2850 that have workarounds in hardware for IRQ-routing

issues.

badpage=<page number>,<page number>, . . . Specify a list of pages not to be

allocated for use because they contain bad bytes. For example, if your memory

tester says that byte 0x12345678 is bad, you would place ‘badpage=0x12345’

on Xen’s command line.

com1=<baud>,DPS,<io base>,<irq> com2=<baud>,DPS,<io base>,<irq>

Xen supports up to two 16550-compatible serial ports. For example: ‘com1=9600,

8n1, 0x408, 5’ maps COM1 to a 9600-baud port, 8 data bits, no parity, 1 stop

bit, I/O port base 0x408, IRQ 5. If some conﬁguration options are standard

(e.g., I/O base and IRQ), then only a preﬁx of the full conﬁguration string need

be speciﬁed. If the baud rate is pre-conﬁgured (e.g., by the bootloader) then you

can specify ‘auto’ in place of a numeric baud rate.

console=<speciﬁer list> Specify the destination for Xen console I/O. This is a comma-

separated list of, for example:

vga use VGA console and allow keyboard input

com1 use serial port com1

com2H use serial port com2. Transmitted chars will have the MSB set. Re-

ceived chars must have MSB set.

com2L use serial port com2. Transmitted chars will have the MSB cleared.

Received chars must have MSB cleared.

The latter two examples allow a single port to be shared by two subsystems

(e.g. console and debugger). Sharing is controlled by MSB of each transmit-

ted/received character. [NB. Default for this option is ‘com1,vga’]

sync console Force synchronous console output. This is useful if you system fails

unexpectedly before it has sent all available output to the console. In most cases

Xen will automatically enter synchronous mode when an exceptional event oc-

curs, but this option provides a manual fallback.

conswitch=<switch-char><auto-switch-char> Specify how to switch serial-console

input between Xen and DOM0. The required sequence is CTRL-<switch-char>

pressed three times. Specifying the backtick character disables switching. The

<auto-switch-char> speciﬁes whether Xen should auto-switch input to DOM0

when it boots — if it is ‘x’ then auto-switching is disabled. Any other value, or

omitting the character, enables auto-switching. [NB. default switch-char is ‘a’]

nmi=xxx Specify what to do with an NMI parity or I/O error.

‘nmi=fatal’: Xen prints a diagnostic and then hangs.

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Belkin XM Commander Manuale Utente Pagina 44