corruption. When using the @option{-snapshot} option, writeback caching is
used by default.
-The host page can be avoided entirely with @option{cache=none}. This will
+The host page cache can be avoided entirely with @option{cache=none}. This will
attempt to do disk IO directly to the guests memory. QEMU may still perform
an internal copy of the data.
ETEXI
DEF("vga", HAS_ARG, QEMU_OPTION_vga,
- "-vga [std|cirrus|vmware|none]\n"
+ "-vga [std|cirrus|vmware|xenfb|none]\n"
" select video card type\n")
STEXI
@item -vga @var{type}
if KVM support is enabled when compiling.
ETEXI
+#ifdef CONFIG_XEN
+DEF("xen-domid", HAS_ARG, QEMU_OPTION_xen_domid,
+ "-xen-domid id specify xen guest domain id\n")
+DEF("xen-create", 0, QEMU_OPTION_xen_create,
+ "-xen-create create domain using xen hypercalls, bypassing xend\n"
+ " warning: should not be used when xend is in use\n")
+DEF("xen-attach", 0, QEMU_OPTION_xen_attach,
+ "-xen-attach attach to existing xen domain\n"
+ " xend will use this when starting qemu\n")
+#endif
+
DEF("no-reboot", 0, QEMU_OPTION_no_reboot, \
"-no-reboot exit instead of rebooting\n")
STEXI
executed often has little or no correlation with actual performance.
ETEXI
+DEF("watchdog", HAS_ARG, QEMU_OPTION_watchdog, \
+ "-watchdog i6300esb|ib700\n" \
+ " enable virtual hardware watchdog [default=none]\n")
+STEXI
+@item -watchdog @var{model}
+Create a virtual hardware watchdog device. Once enabled (by a guest
+action), the watchdog must be periodically polled by an agent inside
+the guest or else the guest will be restarted.
+
+The @var{model} is the model of hardware watchdog to emulate. Choices
+for model are: @code{ib700} (iBASE 700) which is a very simple ISA
+watchdog with a single timer, or @code{i6300esb} (Intel 6300ESB I/O
+controller hub) which is a much more featureful PCI-based dual-timer
+watchdog. Choose a model for which your guest has drivers.
+
+Use @code{-watchdog ?} to list available hardware models. Only one
+watchdog can be enabled for a guest.
+ETEXI
+
+DEF("watchdog-action", HAS_ARG, QEMU_OPTION_watchdog_action, \
+ "-watchdog-action reset|shutdown|poweroff|pause|debug|none\n" \
+ " action when watchdog fires [default=reset]\n")
+STEXI
+@item -watchdog-action @var{action}
+
+The @var{action} controls what QEMU will do when the watchdog timer
+expires.
+The default is
+@code{reset} (forcefully reset the guest).
+Other possible actions are:
+@code{shutdown} (attempt to gracefully shutdown the guest),
+@code{poweroff} (forcefully poweroff the guest),
+@code{pause} (pause the guest),
+@code{debug} (print a debug message and continue), or
+@code{none} (do nothing).
+
+Note that the @code{shutdown} action requires that the guest responds
+to ACPI signals, which it may not be able to do in the sort of
+situations where the watchdog would have expired, and thus
+@code{-watchdog-action shutdown} is not recommended for production use.
+
+Examples:
+
+@table @code
+@item -watchdog i6300esb -watchdog-action pause
+@item -watchdog ib700
+@end table
+ETEXI
+
DEF("echr", HAS_ARG, QEMU_OPTION_echr, \
"-echr chr set terminal escape character instead of ctrl-a\n")
STEXI