On Mon, 30 Mar 2020 at 22:56, Laszlo Ersek <ler...@redhat.com> wrote: > > On 03/30/20 19:44, Ard Biesheuvel wrote: > > On Mon, 30 Mar 2020 at 19:11, Sean via Groups.Io > > <sean.brogan=microsoft....@groups.io> wrote: > >> > >> On Mon, Mar 30, 2020 at 10:04 AM, Ard Biesheuvel wrote: > >> > >> Is there any way I could contribute ArmVirtQemu to this? Or would it > >> be easier if I provided comments/instructions? > >> > >> Either way. > >> Any instructions you provide would be great. I was going to hack > >> something up for feedback but happy for someone else to do it. Let me > >> know. > > > > OK, so the typical invocation would be > > > > qemu-system-aarch64 -M virt -cpu cortex-a57 -m 1024 -net none > > -nographic -bios .../path/to/QEMU_EFI.fd -hda > > fat:rw:.../path/to/startup.nsh > > > > The only complication compared to OVMF is that there is no separate > > serial port for debug output vs console output, so everything is going > > to come out of the same pipe, and grep'ing the console output for > > meaningful strings may easily result in false positives. (-pflash > > could be used as well, but doesn't really add anything in this case, > > and QEMU for ARM has a quirk where pflash images must be exactly 64 MB > > in size) > > I'm begging you not to introduce instances of "-bios" anywhere near > edk2. Please? :) We need to educate QEMU users, and we need to keep our > sanity when facing bug reports. Let's not set bad examples anywhere, if > we can manage. > > I think truncate(1) can do what we need for padding, without actually > allocating those MBs. >
truncate should work on Linux, but I have no idea how to pad an image to a certain size on Windows, and I think the idea was to enable both? In any case, I don't feel as strongly about this as Laszlo does: even though -bios really shouldn't be used when you are actually installing an OS into the VM, I don't think it is inappropriate for booting into a shell and nothing else. Perhaps we could annotate the scripts in a way that discourages people from adopting it? Or if there is an easy way to make this work on both Windows and Linux using -pflash, I obviously wouldn't mind. I just don't feel it is essential. -=-=-=-=-=-=-=-=-=-=-=- Groups.io Links: You receive all messages sent to this group. View/Reply Online (#56688): https://edk2.groups.io/g/devel/message/56688 Mute This Topic: https://groups.io/mt/72559106/21656 Group Owner: devel+ow...@edk2.groups.io Unsubscribe: https://edk2.groups.io/g/devel/unsub [arch...@mail-archive.com] -=-=-=-=-=-=-=-=-=-=-=-