linux-dev/drivers/lguest/switcher.S, branch master

Rename switcher.S to x86/switcher_32.S

2007-10-23T05:49:50Z

lguest uses a "switcher" shim mapped high to bounce between host and guest. As lguest becomes less i386-centric, we separate this code into a subdir. Signed-off-by: Rusty Russell

lguest: Fix Malicious Guest GDT Host Crash

2007-08-09T15:14:56Z

If a Guest makes hypercall which sets a GDT entry to not present, we currently set any segment registers using that GDT entry to 0. Unfortunately, this is not sufficient: there are other ways of altering GDT entries which will cause a fault. The correct solution to do what Linux does: let them set any GDT value they want and handle the #GP when popping causes a fault. This has the added benefit of making our Switcher slightly more robust in the case of any other bugs which cause it to fault. We kill the Guest if it causes a fault in the Switcher: it's the Guest's responsibility to make sure it's not using segments when it changes them. Signed-off-by: Rusty Russell Signed-off-by: Linus Torvalds

lguest: documentation VI: Switcher

2007-07-26T18:35:17Z

Documentation: The Switcher Signed-off-by: Rusty Russell Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

lguest: documentation I: Preparation

2007-07-26T18:35:16Z

The netfilter code had very good documentation: the Netfilter Hacking HOWTO. Noone ever read it. So this time I'm trying something different, using a bit of Knuthiness. Signed-off-by: Rusty Russell Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

lguest: the host code

2007-07-19T17:04:52Z

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 Cc: Andi Kleen Cc: Eric Dumazet Cc: Thomas Gleixner Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds