Am 15.04.2013 um 17:38 hat Gleb Natapov geschrieben: > On Mon, Apr 15, 2013 at 10:56:42AM +0200, Kevin Wolf wrote: > > Am 14.04.2013 um 14:42 hat Gleb Natapov geschrieben: > > > On Fri, Apr 12, 2013 at 01:14:47PM +0200, Kevin Wolf wrote: > > > > This adds a test case that jumps into VM86 by iret-ing to a TSS and back > > > > to Protected Mode using a task gate in the IDT. > > > > > > > > Signed-off-by: Kevin Wolf <kwolf@xxxxxxxxxx> > > > Applied, thanks. Found a bug with it and emulate_invalid_guest_state=1 > > > which is default. Are you running with emulate_invalid_guest_state=0? > > > > Not knowingly at least, I didn't specify any module options. I > > guess I just have enable_unrestricted_guest == true, which makes > > guest_state_valid() return true immediately. > > > Can you check in > /sys/module/kvm_intel/parameters/emulate_invalid_guest_state and > /sys/module/kvm_intel/parameters/unrestricted_guest? You shouldn't have > failed entry problem with enable_unrestricted_guest == true either. $ cat /sys/module/kvm_intel/parameters/emulate_invalid_guest_state Y $ cat /sys/module/kvm_intel/parameters/unrestricted_guest Y Why do you think that I wouldn't have the failed entry check with unrestricted_guest == true? The task switch is always done in software and if it leads to an invalid segment descriptor in the VMCS, then a failed VM entry looks quite expected to me. Kevin -- 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
