On 03/30/20 23:22, Ard Biesheuvel wrote: > 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.
OK, thank you. Meta-comment: while I have strong opinions about these matters, I'm 100% aware that I cannot put in basically any actual work. So I'm trying to police myself in that I make suggestions politely and really only as moderate suggestions, not as "demands" or knee-jerk reactions. Unfortunately, I sometimes slip up, and my thoughts hit the list in less than optimal form. I'm really sorry about that! It's a fine line -- I don't want to ignore this topic (esp. when asked for an opinion), but then again I shouldn't present unreasonable "requirements", without the capacity to contribute code. Please bear with me. :) Thanks! Laszlo -=-=-=-=-=-=-=-=-=-=-=- Groups.io Links: You receive all messages sent to this group. View/Reply Online (#56755): https://edk2.groups.io/g/devel/message/56755 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] -=-=-=-=-=-=-=-=-=-=-=-
