Eric Lee / linux-smarc-t335x-v3.2

05 Jan, 2010

1 commit

30 Jul, 2009

1 commit

  • 2e04ef769   lguest: fix comment style ... Browse Code »

    I don't really notice it (except to begrudge the extra vertical
    space), but Ingo does. And he pointed out that one excuse of lguest
    is as a teaching tool, it should set a good example.

    Signed-off-by: Rusty Russell
    Cc: Ingo Molnar

    Rusty Russell
     

12 Jun, 2009

1 commit

19 Apr, 2009

1 commit

  • a489f0b55   lguest: fix guest crash on non-linear addresses in gdt pvops ... Browse Code »

    Fixes guest crash 'lguest: bad read address 0x4800000 len 256'

    The new per-cpu allocator ends up handing a non-linear address to
    write_gdt_entry. We do __pa() on it, and hand it to the host, which
    kills us.

    I've long wanted to make the hypercall "LOAD_GDT_ENTRY" to match the IDT
    code, but had no pressing reason until now.

    Signed-off-by: Rusty Russell
    Cc: lguest@ozlabs.org

    Rusty Russell
     

30 Mar, 2009

1 commit

30 Jan, 2008

3 commits

25 Oct, 2007

1 commit

23 Oct, 2007

2 commits

  • 2d37f94a2   generalize lgread_u32/lgwrite_u32. ... Browse Code »

    Jes complains that page table code still uses lgread_u32 even though
    it now uses general kernel pte types. The best thing to do is to
    generalize lgread_u32 and lgwrite_u32.

    This means we lose the efficiency of getuser(). We could potentially
    regain it if we used __copy_from_user instead of copy_from_user, but
    I'm not certain that our range check is equivalent to access_ok() on
    all platforms.

    Signed-off-by: Rusty Russell
    Acked-by: Jes Sorensen

    Rusty Russell
     
  • 625efab1c   Move i386 part of core.c to x86/core.c. ... Browse Code »

    Separate i386 architecture specific from core.c and move it to
    x86/core.c and add x86/lguest.h header file to match.

    Signed-off-by: Jes Sorensen
    Signed-off-by: Rusty Russell

    Jes Sorensen
     

09 Aug, 2007

1 commit

  • 0d027c01c   lguest: Fix Malicious Guest GDT Host Crash ... Browse Code »

    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

    Rusty Russell
     

27 Jul, 2007

3 commits

20 Jul, 2007

1 commit

  • d7e28ffe6   lguest: the host code ... Browse Code »

    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

    Rusty Russell