linux-dev/drivers/lguest/lguest_asm.S, branch masterLinux kernel development work - see feature brancheshttps://git.zx2c4.com/linux-dev/atom/drivers/lguest/lguest_asm.S?h=master2007-10-23T05:49:50ZMove lguest guest support to arch/x86.2007-10-23T05:49:50ZRusty Russellrusty@rustcorp.com.au2007-10-22T01:01:54Zurn:sha1:34b8867a034364ca33d0adb3a1c5b9982903c719
Lguest has two sides: host support (to launch guests) and guest
support (replacement boot path and paravirt_ops). This moves the
guest side to arch/x86/lguest where it's closer to related code.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Cc: Andi Kleen <ak@suse.de>
fix modules oopsing in lguest guests2007-09-25T15:51:04ZRusty Russellrusty@rustcorp.com.au2007-09-25T04:24:44Zurn:sha1:bbbd2bf00bab467cff7b1f418b2cb24c71291f59
The assembly templates for lguest guest patching are in the .init.text
section. This means that modules get patched with "cc cc cc cc" or similar
junk.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
lguest: documentation VII: FIXMEs2007-07-26T18:35:17ZRusty Russellrusty@rustcorp.com.au2007-07-26T17:41:05Zurn:sha1:f56a384e98aa81065038c4e16f39ed989ccae687
Documentation: The FIXMEs
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
lguest: documentation II: Guest2007-07-26T18:35:17ZRusty Russellrusty@rustcorp.com.au2007-07-26T17:41:02Zurn:sha1:b2b47c214f4e85ce3968120d42e8b18eccb4f4e3
Documentation: The Guest
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
lguest: trivial: We now have asm/processor-flags.h, so use it.2007-07-20T16:05:16ZRusty Russellrusty@rustcorp.com.au2007-07-20T12:12:56Zurn:sha1:876be9d89e9c8a007577e6372e331042edf4020b
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
lguest: the host code2007-07-19T17:04:52ZRusty Russellrusty@rustcorp.com.au2007-07-19T08:49:23Zurn:sha1:d7e28ffe6c74416b54345d6004fd0964c115b12c
This is the code for the "lg.ko" module, which allows lguest guests to
be launched.
[akpm@linux-foundation.org: update for futex-new-private-futexes]
[akpm@linux-foundation.org: build fix]
[jmorris@namei.org: lguest: use hrtimers]
[akpm@linux-foundation.org: x86_64 build fix]
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Cc: Andi Kleen <ak@suse.de>
Cc: Eric Dumazet <dada1@cosmosbay.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
lguest: the guest code2007-07-19T17:04:52ZRusty Russellrusty@rustcorp.com.au2007-07-19T08:49:22Zurn:sha1:07ad157f6e5d228be78acd5cea0291e5d0360398
lguest is a simple hypervisor for Linux on Linux. Unlike kvm it doesn't need
VT/SVM hardware. Unlike Xen it's simply "modprobe and go". Unlike both, it's
5000 lines and self-contained.
Performance is ok, but not great (-30% on kernel compile). But given its
hackability, I expect this to improve, along with the paravirt_ops code which
it supplies a complete example for. There's also a 64-bit version being
worked on and other craziness.
But most of all, lguest is awesome fun! Too much of the kernel is a big ball
of hair. lguest is simple enough to dive into and hack, plus has some warts
which scream "fork me!".
This patch:
This is the code and headers required to make an i386 kernel an lguest guest.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Cc: Andi Kleen <ak@suse.de>
Cc: Jeremy Fitzhardinge <jeremy@goop.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>