On Mon, Jan 30, 2012 at 10:55:41AM +0200, Gleb Natapov wrote: > On Mon, Jan 30, 2012 at 09:48:33AM +0100, Kevin Wolf wrote: > > Am 27.01.2012 20:52, schrieb Gleb Natapov: > > > On Fri, Jan 27, 2012 at 08:23:33PM +0100, Kevin Wolf wrote: > > >> I believe this should work with both VMX and SVM now. Gleb, Jörg, can one of > > >> you test this with SVM? I did some testing on my buggy processor and it looks > > >> as good as it gets, but it would be better if you could confirm. > > >> > > > You forgot to set cpl to 3 in vmcb in svm_set_rflags() when vm86 is enabled, no? > > > > SVM updates the CPL when the segment selector for CS is loaded. From a > > svm.c POV, segment selectors are updated immediately after set_rflags, > > so it wouldn't really make a difference to do it twice. > > > It is too subtle to rely on that. The fact is that checking cpl after > set_rflags provides incorrect value. This better be fixed. BTW does > load_state_from_tss16() need the same fix? > Probably not since you can't switch to vm86 this way. But may be for other reasons. -- Gleb. -- 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
