linux/drivers/lguest
Michal Hocko 0acf00014b lguest: move process freezing before pending signals check
run_guest tries to freeze the current process after it has handled
pending interrupts and before it calls lguest_arch_run_guest.
This doesn't work nicely if the task has been killed while being frozen
and when we want to handle that signal as soon as possible.
Let's move try_to_freeze before we check for pending signal so that we
can get out of the loop as soon as possible.

Signed-off-by: Michal Hocko <mhocko@suse.cz>
Acked-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2011-10-27 10:56:18 +10:30
..
x86 lguest: Fix in/out emulation 2011-07-22 14:39:51 +09:30
Kconfig Correct occurrences of 2011-05-06 09:27:55 -07:00
Makefile Correct occurrences of 2011-05-06 09:27:55 -07:00
README
core.c lguest: move process freezing before pending signals check 2011-10-27 10:56:18 +10:30
hypercalls.c
interrupts_and_traps.c lguest: update comments 2011-07-22 14:39:50 +09:30
lg.h lguest: use a special 1:1 linear pagetable mode until first switch. 2011-07-22 14:39:48 +09:30
lguest_device.c lguest: Simplify device initialization. 2011-07-22 14:39:49 +09:30
lguest_user.c lguest: update comments 2011-07-22 14:39:50 +09:30
page_tables.c lguest: update comments 2011-07-22 14:39:50 +09:30
segments.c

README

Welcome, friend reader, to lguest.

Lguest is an adventure, with you, the reader, as Hero.  I can't think of many
5000-line projects which offer both such capability and glimpses of future
potential; it is an exciting time to be delving into the source!

But be warned; this is an arduous journey of several hours or more!  And as we
know, all true Heroes are driven by a Noble Goal.  Thus I offer a Beer (or
equivalent) to anyone I meet who has completed this documentation.

So get comfortable and keep your wits about you (both quick and humorous).
Along your way to the Noble Goal, you will also gain masterly insight into
lguest, and hypervisors and x86 virtualization in general.

Our Quest is in seven parts: (best read with C highlighting turned on)

I) Preparation
	- In which our potential hero is flown quickly over the landscape for a
	  taste of its scope.  Suitable for the armchair coders and other such
	  persons of faint constitution.

II) Guest
	- Where we encounter the first tantalising wisps of code, and come to
	  understand the details of the life of a Guest kernel.

III) Drivers
	- Whereby the Guest finds its voice and become useful, and our
	  understanding of the Guest is completed.

IV) Launcher
	- Where we trace back to the creation of the Guest, and thus begin our
	  understanding of the Host.

V) Host
	- Where we master the Host code, through a long and tortuous journey.
	  Indeed, it is here that our hero is tested in the Bit of Despair.

VI) Switcher
	- Where our understanding of the intertwined nature of Guests and Hosts
	  is completed.

VII) Mastery
	- Where our fully fledged hero grapples with the Great Question:
	  "What next?"

make Preparation!
Rusty Russell.