Hi Andre, On (Tue) Jun 16 2009 [15:25:13], Andre Przywara wrote: > sysenter/sysexit are not supported on AMD's 32bit compat mode, whereas > syscall is not supported on Intel's 32bit compat mode. To allow cross > vendor migration we emulate the missing instructions by setting up the > processor state accordingly. > The sysenter code was originally sketched by Amit Shah, it was completed, > debugged, syscall added and made-to-work by Christoph Egger and polished > up by Andre Przywara. > Please note that sysret does not need to be emulated, because it will be > exectued in 64bit mode and returning to 32bit compat mode works on Intel. Thanks for picking this up. You also had a testcase for this, right? Amit -- 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
