On Thu, Dec 13, 2012 at 01:11:55PM +0100, Paolo Bonzini wrote: > MOV immediate instruction (opcodes 0xB8-0xBF) may take 64-bit operand. > Some hypervisor implementations assumed the operand is 32-bit. This > should never happen because the instruction has no memory operand, but > (like the existing test_mmx_movq_mf) the testcase tricks the emulator > into executing one by mismatching the page tables and the corresponding > TLB entry. > > Cc: Nadav Amit <nadav.amit@xxxxxxxxx> > Signed-off-by: Paolo Bonzini <pbonzini@xxxxxxxxxx> > --- > x86/emulator.c | 33 +++++++++++++++++++++++++++++++++ > 1 file changed, 33 insertions(+) Wicked, missed that. If you're unlucky, though, TLB entry can be gone by then (unlikely, though). Applied, thanks. -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
