On Fri, 2007-08-31 at 09:54 +0200, Christian Ehrhardt wrote: > (XEN) (GUEST: 353) Detected Xen v3.0.3-1
I was unable to reproduce this problem on Xen 3.1.0 although I can't immediately see a particular changeset which obviously fixed it. There have been plenty of fixes to the emulator since 3.0.3 though so it's worth trying a newer version. In a later mail: > The problem is with the lgdt instruction. Apparently XEN does not keep > the contents of the 48-bit gdt_48 data structure that is passed to > lgdt in the XEN machine state. Instead it appears to save the > _address_ of the 48-bit descriptor somewhere. Unfortunately this data > happens to reside on the stack and is probably no longer availiable at > the time of the actual protected mode jump. The emulation of lgdt (in tools/firmware/vmxassist/vm86.c) looks sane enough on first glance (i.e. it saves the base and length not the pointer) although it isn't an area of the code I'm particularly familiar with. Ian. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/