[kvm-devel] [RFC][PATCH 0/4] Guest debugging via soft breakpoints

[Jan K. <jan...@we...>]

This is yet only a proof of concept; more cleanups, generalizations,
full arch support, and some care for ABI consistency are needed.

However, this series allows to actually _use_ guest debugging with kvm
on x86 (Intel only so far). There is no more limitation on how many
breakpoints can be used in parallel, and this does not depend on
existing (and correct) hardware breakpoint support. In fact, it breaks
my patches for this, need to rebase them later and enable hw-breakpoint/
watchpoint support this way.

The patch series depends on earlier fixes of mine, namely
 - qemu-kvm: Fix guest resetting v2
   (http://permalink.gmane.org/gmane.comp.emulators.kvm.devel/17442)
 - kvm-qemu: Fix monitor and gdbstub deadlocks v2
   (http://permalink.gmane.org/gmane.comp.emulators.kvm.devel/17444)

Feedback is welcome.

Jan