On Tue, Oct 18, 2011 at 06:23:11PM +0200, Jan Kiszka wrote: > AMD processors apparently have a bug in the hardware task switching > support when NPT is enabled. If the task switch triggers a NPF, we can > get wrong EXITINTINFO along with that fault. On resume, spurious > exceptions may then be injected into the guest. > > We were able to reproduce this bug when our guest triggered #SS and the > handler were supposed to run over a separate task with not yet touched > stack pages. > > Work around the issue by continuing to emulate task switches even in > NPT mode. > > Signed-off-by: Jan Kiszka <jan.kiszka@xxxxxxxxxxx> > --- > arch/x86/kvm/svm.c | 1 - > 1 files changed, 0 insertions(+), 1 deletions(-) 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
