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diff --git a/docs/src/user/options.tex b/docs/src/user/options.tex deleted file mode 100644 index 36a14b840d..0000000000 --- a/docs/src/user/options.tex +++ /dev/null @@ -1,149 +0,0 @@ -\chapter{Build and Boot Options} - -This chapter describes the build- and boot-time options which may be -used to tailor your Xen system. - - -\section{Xen Build Options} - -Xen provides a number of build-time options which should be set as -environment variables or passed on make's command-line. - -\begin{description} -\item[verbose=y] Enable debugging messages when Xen detects an - unexpected condition. Also enables console output from all domains. -\item[debug=y] Enable debug assertions. Implies {\bf verbose=y}. - (Primarily useful for tracing bugs in Xen). -\item[debugger=y] Enable the in-Xen debugger. This can be used to - debug Xen, guest OSes, and applications. -\item[perfc=y] Enable performance counters for significant events - within Xen. The counts can be reset or displayed on Xen's console - via console control keys. -\item[trace=y] Enable per-cpu trace buffers which log a range of - events within Xen for collection by control software. -\end{description} - - -\section{Xen Boot Options} -\label{s:xboot} - -These options are used to configure Xen's behaviour at runtime. They -should be appended to Xen's command line, either manually or by -editing \path{grub.conf}. - -\begin{description} -\item [ noreboot ] Don't reboot the machine automatically on errors. - This is useful to catch debug output if you aren't catching console - messages via the serial line. -\item [ nosmp ] Disable SMP support. This option is implied by - `ignorebiostables'. -\item [ watchdog ] Enable NMI watchdog which can report certain - failures. -\item [ noirqbalance ] Disable software IRQ balancing and affinity. - This can be used on systems such as Dell 1850/2850 that have - workarounds in hardware for IRQ-routing issues. -\item [ badpage=$<$page number$>$,$<$page number$>$, \ldots ] 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. -\item [ com1=$<$baud$>$,DPS,$<$io\_base$>$,$<$irq$>$ - com2=$<$baud$>$,DPS,$<$io\_base$>$,$<$irq$>$ ] \mbox{}\\ - 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. -\item [ console=$<$specifier list$>$ ] Specify the destination for Xen - console I/O. This is a comma-separated list of, for example: - \begin{description} - \item[ vga ] Use VGA console and allow keyboard input. - \item[ com1 ] Use serial port com1. - \item[ com2H ] Use serial port com2. Transmitted chars will have the - MSB set. Received chars must have MSB set. - \item[ com2L] Use serial port com2. Transmitted chars will have the - MSB cleared. Received chars must have MSB cleared. - \end{description} - 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 transmitted/received character. [NB. Default for this - option is `com1,vga'] -\item [ 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 - occurs, but this option provides a manual fallback. -\item [ 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'.] -\item [ nmi=xxx ] - Specify what to do with an NMI parity or I/O error. \\ - `nmi=fatal': Xen prints a diagnostic and then hangs. \\ - `nmi=dom0': Inform DOM0 of the NMI. \\ - `nmi=ignore': Ignore the NMI. -\item [ mem=xxx ] Set the physical RAM address limit. Any RAM - appearing beyond this physical address in the memory map will be - ignored. This parameter may be specified with a B, K, M or G suffix, - representing bytes, kilobytes, megabytes and gigabytes respectively. - The default unit, if no suffix is specified, is kilobytes. -\item [ dom0\_mem=xxx ] Set the amount of memory to be allocated to - domain0. In Xen 3.x the parameter may be specified with a B, K, M or - G suffix, representing bytes, kilobytes, megabytes and gigabytes - respectively; if no suffix is specified, the parameter defaults to - kilobytes. In previous versions of Xen, suffixes were not supported - and the value is always interpreted as kilobytes. -\item [ tbuf\_size=xxx ] Set the size of the per-cpu trace buffers, in - pages (default 1). Note that the trace buffers are only enabled in - debug builds. Most users can ignore this feature completely. -\item [ sched=xxx ] Select the CPU scheduler Xen should use. The - current possibilities are `bvt' (default), `atropos' and `rrobin'. - For more information see Section~\ref{s:sched}. -\item [ apic\_verbosity=debug,verbose ] Print more detailed - information about local APIC and IOAPIC configuration. -\item [ lapic ] Force use of local APIC even when left disabled by - uniprocessor BIOS. -\item [ nolapic ] Ignore local APIC in a uniprocessor system, even if - enabled by the BIOS. -\item [ apic=bigsmp,default,es7000,summit ] Specify NUMA platform. - This can usually be probed automatically. -\end{description} - -In addition, the following options may be specified on the Xen command -line. Since domain 0 shares responsibility for booting the platform, -Xen will automatically propagate these options to its command line. -These options are taken from Linux's command-line syntax with -unchanged semantics. - -\begin{description} -\item [ acpi=off,force,strict,ht,noirq,\ldots ] Modify how Xen (and - domain 0) parses the BIOS ACPI tables. -\item [ acpi\_skip\_timer\_override ] Instruct Xen (and domain~0) to - ignore timer-interrupt override instructions specified by the BIOS - ACPI tables. -\item [ noapic ] Instruct Xen (and domain~0) to ignore any IOAPICs - that are present in the system, and instead continue to use the - legacy PIC. -\end{description} - - -\section{XenLinux Boot Options} - -In addition to the standard Linux kernel boot options, we support: -\begin{description} -\item[ xencons=xxx ] Specify the device node to which the Xen virtual - console driver is attached. The following options are supported: - \begin{center} - \begin{tabular}{l} - `xencons=off': disable virtual console \\ - `xencons=tty': attach console to /dev/tty1 (tty0 at boot-time) \\ - `xencons=ttyS': attach console to /dev/ttyS0 - \end{tabular} -\end{center} -The default is ttyS for dom0 and tty for all other domains. -\end{description} |