• Jeremy Fitzhardinge's avatar
    [PATCH] i386: Update sys_vm86 to cope with changed pt_regs and %gs usage · 49d26b6e
    Jeremy Fitzhardinge authored
    sys_vm86 uses a struct kernel_vm86_regs, which is identical to pt_regs, but
    adds an extra space for all the segment registers.  Previously this structure
    was completely independent, so changes in pt_regs had to be reflected in
    kernel_vm86_regs.  This changes just embeds pt_regs in kernel_vm86_regs, and
    makes the appropriate changes to vm86.c to deal with the new naming.
    
    Also, since %gs is dealt with differently in the kernel, this change adjusts
    vm86.c to reflect this.
    
    While making these changes, I also cleaned up some frankly bizarre code which
    was added when auditing was added to sys_vm86.
    Signed-off-by: default avatarJeremy Fitzhardinge <jeremy@xensource.com>
    Signed-off-by: default avatarAndi Kleen <ak@suse.de>
    Cc: Chuck Ebbert <76306.1226@compuserve.com>
    Cc: Zachary Amsden <zach@vmware.com>
    Cc: Jan Beulich <jbeulich@novell.com>
    Cc: Andi Kleen <ak@suse.de>
    Cc: Al Viro <viro@zeniv.linux.org.uk>
    Cc: Jason Baron <jbaron@redhat.com>
    Cc: Chris Wright <chrisw@sous-sol.org>
    Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
    49d26b6e
vm86.c 21.7 KB