*The xen version of my host is xen-4.1.2, as the
xen-4.1.2/docs/src/user.tex says:*
\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.
\end{description}
I build with ``make xen debugger=y`` and copy the
dist/install/boot/xen-4.1.2.gz to /boot of xen host.
There is another linux host which connects to the xen host through serial
cable.
Reboot xen host, in the linux host,* I see the xen boot information and
can send key-command to **xen as well as CTRL+A used to switch input, but I
have no idea how to make the xen hypervisor continues to run and how to
trap into kdb. *
*
*
*I tried the CTRL+\ , but failed to trap info kdb.*
*
*
Appriciate your reply, thanks in advance.
(XEN) ''h'' pressed -> showing installed handlers
(XEN) key ''%'' (ascii ''25'') => trap to
xendbg
(XEN) key ''*'' (ascii ''2a'') => print all
diagnostics
(XEN) key ''0'' (ascii ''30'') => dump Dom0
registers
(XEN) key ''A'' (ascii ''41'') => toggle
alternative key handling
(XEN) key ''C'' (ascii ''43'') => trigger a
crashdump
(XEN) key ''H'' (ascii ''48'') => dump heap
info
(XEN) key ''M'' (ascii ''4d'') => dump MSI
state
(XEN) key ''N'' (ascii ''4e'') => trigger an
NMI
(XEN) key ''Q'' (ascii ''51'') => dump PCI
devices
(XEN) key ''R'' (ascii ''52'') => reboot
machine
(XEN) key ''a'' (ascii ''61'') => dump timer
queues
(XEN) key ''c'' (ascii ''63'') => dump ACPI
Cx structures
(XEN) key ''d'' (ascii ''64'') => dump
registers
(XEN) key ''e'' (ascii ''65'') => dump
evtchn info
(XEN) key ''g'' (ascii ''67'') => print
grant table usage
(XEN) key ''h'' (ascii ''68'') => show this
message
(XEN) key ''i'' (ascii ''69'') => dump
interrupt bindings
(XEN) key ''m'' (ascii ''6d'') => memory
info
(XEN) key ''n'' (ascii ''6e'') => NMI
statistics
(XEN) key ''q'' (ascii ''71'') => dump
domain (and guest debug) info
(XEN) key ''r'' (ascii ''72'') => dump run
queues
(XEN) key ''s'' (ascii ''73'') => dump
softtsc stats
(XEN) key ''t'' (ascii ''74'') => display
multi-cpu clock info
(XEN) key ''u'' (ascii ''75'') => dump numa
info
(XEN) key ''z'' (ascii ''7a'') => print
ioapic info
(XEN) *** Serial input -> DOM0 (type ''CTRL-a'' three times
to switch input
to Xen)
(XEN) *** Serial input -> Xen (type ''CTRL-a'' three times to
switch input to
DOM0)
(XEN) *** Serial input -> DOM0 (type ''CTRL-a'' three times
to switch input
to Xen)
(XEN) *** Serial input -> Xen (type ''CTRL-a'' three times to
switch input to
DOM0)
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