<x86@xxxxxxxxxx>,linux-msdos@xxxxxxxxxxxxxxx,wine-devel@xxxxxxxxxx From: hpa@xxxxxxxxx Message-ID: <3FD12652-AA83-4D73-9914-BBA089E58FFA@xxxxxxxxx> On April 1, 2017 6:08:43 AM PDT, Stas Sergeev <stsp@xxxxxxx> wrote: >30.03.2017 08:14, Ricardo Neri пишет: >>>>>>> You know the wine's >>>>>>> requirements now - they are very small. And >>>>>>> dosemu doesn't need anything at all but smsw. >>>>>>> And even smsw is very rare. >>>>>> But emulation is still needed for SMSW, right? >>>>> Likely so. >>>>> If you want, I can enable the logging of this command >>>>> and see if it is used by some of the DOS programs I have. >>>> It would be great if you could do that, if you don't mind. >>> OK, scheduled to the week-end. >>> I'll let you know. >> Thanks! >OK, done the testing. >It appears smsw is used in v86 by windows-3.1 and dos4gw >at the very least, and these are the "major" apps. So doing >without a fixup in v86 will not go unnoticed. Unfortunately >this also means that KVM-vm86 should be properly tested. >I have also found a weird program that does SGDT under >v86. This causes "ERROR: SGDT not implemented" under >dosemu, but the prog still works fine as it obviously does >not care about the results. This app can easily be broken >of course, if that makes any sense (likely not). Using SMSW to detect v86 mode is relatively common. pushf hides the VM flag, but SMSW is available, providing the v86 virtualization hole. -- Sent from my Android device with K-9 Mail. Please excuse my brevity. -- To unsubscribe from this list: send the line "unsubscribe linux-msdos" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
