Date: Thu, 13 Apr 2017 02:48:58 -0700 (PDT) From: "Rodney W. Grimes" <freebsd-rwg@pdx.rh.CN85.dnsmgr.net> To: Peter Grehan <grehan@freebsd.org> Cc: Andriy Gapon <avg@freebsd.org>, freebsd-virtualization@freebsd.org Subject: Re: dos in bhyve Message-ID: <201704130948.v3D9mxvg083939@pdx.rh.CN85.dnsmgr.net> In-Reply-To: <eb24d1cd-8325-85cd-a6ee-7730716e12cc@freebsd.org>
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> Hi Andriy, > > > I wonder if anyone was able to run any DOS variant in bhyve. > > I've run vm86 mode in Linux but that doesn't really count :) > > > I tried FreeDOS using BHYVE_UEFI_CSM firmware, but it seems to just hang. > > Try looking at the CSM/BIOS debug output that is available on the > bvmcons debug port (use bhyve's "-b" option, though you'll want to send > serial port output to somewhere other than stdout (e.g an nmdm port). > > That will at least show what BIOS calls are being issued, and if any > are unimplemented. > > > I also tried adding a frame buffer device, it seems that there is some reaction > > to key presses (RET) sent via VNC, but the screen stays black, so it's > > impossible to tell if there are any prompts and what happens. > > The VGA renderer hasn't been hooked up in this mode yet (fbuf,vga=on). > I can work with you offline to get that going. Can you keep me in the loop on this please? -- Rod Grimes rgrimes@freebsd.org
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